diff --git a/public/vendor/bootstrap/bootstrap.js b/public/vendor/bootstrap/bootstrap.js index 870ead5783d..8730550092a 100644 --- a/public/vendor/bootstrap/bootstrap.js +++ b/public/vendor/bootstrap/bootstrap.js @@ -18,7 +18,7 @@ * ========================================================== */ -!function ($) { +!function($) { "use strict"; // jshint ;_; @@ -26,22 +26,22 @@ /* CSS TRANSITION SUPPORT (http://www.modernizr.com/) * ======================================================= */ - $(function () { + $(function() { - $.support.transition = (function () { + $.support.transition = (function() { - var transitionEnd = (function () { + var transitionEnd = (function() { var el = document.createElement('bootstrap') , transEndEventNames = { - 'WebkitTransition' : 'webkitTransitionEnd' - , 'MozTransition' : 'transitionend' - , 'OTransition' : 'oTransitionEnd otransitionend' - , 'transition' : 'transitionend' - } + 'WebkitTransition': 'webkitTransitionEnd' + , 'MozTransition': 'transitionend' + , 'OTransition': 'oTransitionEnd otransitionend' + , 'transition': 'transitionend' + } , name - for (name in transEndEventNames){ + for (name in transEndEventNames) { if (el.style[name] !== undefined) { return transEndEventNames[name] } @@ -77,46 +77,46 @@ * ========================================================== */ -!function ($) { +!function($) { "use strict"; // jshint ;_; -/* ============================================================ - * bootstrap-dropdown.js v2.3.2 - * http://getbootstrap.com/2.3.2/javascript.html#dropdowns - * ============================================================ - * Copyright 2013 Twitter, Inc. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * ============================================================ */ + /* ============================================================ + * bootstrap-dropdown.js v2.3.2 + * http://getbootstrap.com/2.3.2/javascript.html#dropdowns + * ============================================================ + * Copyright 2013 Twitter, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============================================================ */ - /* DROPDOWN CLASS DEFINITION - * ========================= */ + /* DROPDOWN CLASS DEFINITION + * ========================= */ var toggle = '[data-toggle=dropdown]' - , Dropdown = function (element) { - var $el = $(element).on('click.dropdown.data-api', this.toggle) - $('html').on('click.dropdown.data-api', function () { - $el.parent().removeClass('open') - }) - } + , Dropdown = function(element) { + var $el = $(element).on('click.dropdown.data-api', this.toggle) + $('html').on('click.dropdown.data-api', function() { + $el.parent().removeClass('open') + }) + } Dropdown.prototype = { constructor: Dropdown - , toggle: function (e) { + , toggle: function(e) { var $this = $(this) , $parent , isActive @@ -142,7 +142,7 @@ return false } - , keydown: function (e) { + , keydown: function(e) { var $this , $items , $active @@ -187,7 +187,7 @@ function clearMenus() { $('.dropdown-backdrop').remove() - $(toggle).each(function () { + $(toggle).each(function() { getParent($(this)).removeClass('open') }) } @@ -202,7 +202,7 @@ selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7 } - $parent = selector && $(selector) + $parent = selector && $.find(selector) if (!$parent || !$parent.length) $parent = $this.parent() @@ -215,8 +215,8 @@ var old = $.fn.dropdown - $.fn.dropdown = function (option) { - return this.each(function () { + $.fn.dropdown = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('dropdown') if (!data) $this.data('dropdown', (data = new Dropdown(this))) @@ -227,10 +227,10 @@ $.fn.dropdown.Constructor = Dropdown - /* DROPDOWN NO CONFLICT - * ==================== */ + /* DROPDOWN NO CONFLICT + * ==================== */ - $.fn.dropdown.noConflict = function () { + $.fn.dropdown.noConflict = function() { $.fn.dropdown = old return this } @@ -241,9 +241,9 @@ $(document) .on('click.dropdown.data-api', clearMenus) - .on('click.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() }) - .on('click.dropdown.data-api' , toggle, Dropdown.prototype.toggle) - .on('keydown.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown) + .on('click.dropdown.data-api', '.dropdown form', function(e) { e.stopPropagation() }) + .on('click.dropdown.data-api', toggle, Dropdown.prototype.toggle) + .on('keydown.dropdown.data-api', toggle + ', [role=menu]', Dropdown.prototype.keydown) }(window.jQuery); /* ========================================================= @@ -266,15 +266,15 @@ * ========================================================= */ -!function ($) { +!function($) { "use strict"; // jshint ;_; - /* MODAL CLASS DEFINITION - * ====================== */ + /* MODAL CLASS DEFINITION + * ====================== */ - var Modal = function (element, options) { + var Modal = function(element, options) { this.options = options this.$element = $(element) .delegate('[data-dismiss="modal"]', 'click.dismiss.modal', $.proxy(this.hide, this)) @@ -283,170 +283,170 @@ Modal.prototype = { - constructor: Modal + constructor: Modal - , toggle: function () { - return this[!this.isShown ? 'show' : 'hide']() - } + , toggle: function() { + return this[!this.isShown ? 'show' : 'hide']() + } - , show: function () { - var that = this - , e = $.Event('show') + , show: function() { + var that = this + , e = $.Event('show') - this.$element.trigger(e) + this.$element.trigger(e) - if (this.isShown || e.isDefaultPrevented()) return + if (this.isShown || e.isDefaultPrevented()) return - this.isShown = true + this.isShown = true - this.escape() + this.escape() - this.backdrop(function () { - var transition = $.support.transition && that.$element.hasClass('fade') + this.backdrop(function() { + var transition = $.support.transition && that.$element.hasClass('fade') - if (!that.$element.parent().length) { - that.$element.appendTo(document.body) //don't move modals dom position - } + if (!that.$element.parent().length) { + that.$element.appendTo(document.body) //don't move modals dom position + } - that.$element.show() + that.$element.show() - if (transition) { - that.$element[0].offsetWidth // force reflow - } + if (transition) { + that.$element[0].offsetWidth // force reflow + } - that.$element - .addClass('in') - .attr('aria-hidden', false) + that.$element + .addClass('in') + .attr('aria-hidden', false) - that.enforceFocus() + that.enforceFocus() - transition ? - that.$element.one($.support.transition.end, function () { that.$element.focus().trigger('shown') }) : - that.$element.focus().trigger('shown') + transition ? + that.$element.one($.support.transition.end, function() { that.$element.focus().trigger('shown') }) : + that.$element.focus().trigger('shown') + }) + } + + , hide: function(e) { + e && e.preventDefault() + + var that = this + + e = $.Event('hide') + + this.$element.trigger(e) + + if (!this.isShown || e.isDefaultPrevented()) return + + this.isShown = false + + this.escape() + + $(document).off('focusin.modal') + + this.$element + .removeClass('in') + .attr('aria-hidden', true) + + $.support.transition && this.$element.hasClass('fade') ? + this.hideWithTransition() : + this.hideModal() + } + + , enforceFocus: function() { + var that = this + $(document).on('focusin.modal', function(e) { + if (that.$element[0] !== e.target && !that.$element.has(e.target).length) { + that.$element.focus() + } + }) + } + + , escape: function() { + var that = this + if (this.isShown && this.options.keyboard) { + this.$element.on('keyup.dismiss.modal', function(e) { + e.which == 27 && that.hide() }) + } else if (!this.isShown) { + this.$element.off('keyup.dismiss.modal') } + } - , hide: function (e) { - e && e.preventDefault() + , hideWithTransition: function() { + var that = this + , timeout = setTimeout(function() { + that.$element.off($.support.transition.end) + that.hideModal() + }, 500) - var that = this + this.$element.one($.support.transition.end, function() { + clearTimeout(timeout) + that.hideModal() + }) + } - e = $.Event('hide') + , hideModal: function() { + var that = this + this.$element.hide() + this.backdrop(function() { + that.removeBackdrop() + that.$element.trigger('hidden') + }) + } - this.$element.trigger(e) + , removeBackdrop: function() { + this.$backdrop && this.$backdrop.remove() + this.$backdrop = null + } - if (!this.isShown || e.isDefaultPrevented()) return + , backdrop: function(callback) { + var that = this + , animate = this.$element.hasClass('fade') ? 'fade' : '' - this.isShown = false + if (this.isShown && this.options.backdrop) { + var doAnimate = $.support.transition && animate - this.escape() + this.$backdrop = $('
') + .appendTo(document.body) - $(document).off('focusin.modal') + this.$backdrop.click( + this.options.backdrop == 'static' ? + $.proxy(this.$element[0].focus, this.$element[0]) + : $.proxy(this.hide, this) + ) - this.$element - .removeClass('in') - .attr('aria-hidden', true) + if (doAnimate) this.$backdrop[0].offsetWidth // force reflow + + this.$backdrop.addClass('in') + + if (!callback) return + + doAnimate ? + this.$backdrop.one($.support.transition.end, callback) : + callback() + + } else if (!this.isShown && this.$backdrop) { + this.$backdrop.removeClass('in') $.support.transition && this.$element.hasClass('fade') ? - this.hideWithTransition() : - this.hideModal() - } - - , enforceFocus: function () { - var that = this - $(document).on('focusin.modal', function (e) { - if (that.$element[0] !== e.target && !that.$element.has(e.target).length) { - that.$element.focus() - } - }) - } - - , escape: function () { - var that = this - if (this.isShown && this.options.keyboard) { - this.$element.on('keyup.dismiss.modal', function ( e ) { - e.which == 27 && that.hide() - }) - } else if (!this.isShown) { - this.$element.off('keyup.dismiss.modal') - } - } - - , hideWithTransition: function () { - var that = this - , timeout = setTimeout(function () { - that.$element.off($.support.transition.end) - that.hideModal() - }, 500) - - this.$element.one($.support.transition.end, function () { - clearTimeout(timeout) - that.hideModal() - }) - } - - , hideModal: function () { - var that = this - this.$element.hide() - this.backdrop(function () { - that.removeBackdrop() - that.$element.trigger('hidden') - }) - } - - , removeBackdrop: function () { - this.$backdrop && this.$backdrop.remove() - this.$backdrop = null - } - - , backdrop: function (callback) { - var that = this - , animate = this.$element.hasClass('fade') ? 'fade' : '' - - if (this.isShown && this.options.backdrop) { - var doAnimate = $.support.transition && animate - - this.$backdrop = $('
') - .appendTo(document.body) - - this.$backdrop.click( - this.options.backdrop == 'static' ? - $.proxy(this.$element[0].focus, this.$element[0]) - : $.proxy(this.hide, this) - ) - - if (doAnimate) this.$backdrop[0].offsetWidth // force reflow - - this.$backdrop.addClass('in') - - if (!callback) return - - doAnimate ? - this.$backdrop.one($.support.transition.end, callback) : - callback() - - } else if (!this.isShown && this.$backdrop) { - this.$backdrop.removeClass('in') - - $.support.transition && this.$element.hasClass('fade')? - this.$backdrop.one($.support.transition.end, callback) : - callback() - - } else if (callback) { + this.$backdrop.one($.support.transition.end, callback) : callback() - } + + } else if (callback) { + callback() } + } } - /* MODAL PLUGIN DEFINITION - * ======================= */ + /* MODAL PLUGIN DEFINITION + * ======================= */ var old = $.fn.modal - $.fn.modal = function (option) { - return this.each(function () { + $.fn.modal = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('modal') , options = $.extend({}, $.fn.modal.defaults, $this.data(), typeof option == 'object' && option) @@ -457,7 +457,7 @@ } $.fn.modal.defaults = { - backdrop: true + backdrop: true , keyboard: true , show: true } @@ -465,29 +465,29 @@ $.fn.modal.Constructor = Modal - /* MODAL NO CONFLICT - * ================= */ + /* MODAL NO CONFLICT + * ================= */ - $.fn.modal.noConflict = function () { + $.fn.modal.noConflict = function() { $.fn.modal = old return this } - /* MODAL DATA-API - * ============== */ + /* MODAL DATA-API + * ============== */ - $(document).on('click.modal.data-api', '[data-toggle="modal"]', function (e) { + $(document).on('click.modal.data-api', '[data-toggle="modal"]', function(e) { var $this = $(this) , href = $this.attr('href') - , $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7 - , option = $target.data('modal') ? 'toggle' : $.extend({ remote:!/#/.test(href) && href }, $target.data(), $this.data()) + , $target = $.find($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7 + , option = $target.data('modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data()) e.preventDefault() $target .modal(option) - .one('hide', function () { + .one('hide', function() { $this.focus() }) }) @@ -514,15 +514,15 @@ * ========================================================== */ -!function ($) { +!function($) { "use strict"; // jshint ;_; - /* TOOLTIP PUBLIC CLASS DEFINITION - * =============================== */ + /* TOOLTIP PUBLIC CLASS DEFINITION + * =============================== */ - var Tooltip = function (element, options) { + var Tooltip = function(element, options) { this.init('tooltip', element, options) } @@ -530,7 +530,7 @@ constructor: Tooltip - , init: function (type, element, options) { + , init: function(type, element, options) { var eventIn , eventOut , triggers @@ -561,25 +561,25 @@ this.fixTitle() } - , getOptions: function (options) { + , getOptions: function(options) { options = $.extend({}, $.fn[this.type].defaults, this.$element.data(), options) if (options.delay && typeof options.delay == 'number') { options.delay = { show: options.delay - , hide: options.delay + , hide: options.delay } } return options } - , enter: function (e) { + , enter: function(e) { var defaults = $.fn[this.type].defaults , options = {} , self - this._options && $.each(this._options, function (key, value) { + this._options && $.each(this._options, function(key, value) { if (defaults[key] != value) options[key] = value }, this) @@ -594,7 +594,7 @@ }, self.options.delay.show) } - , leave: function (e) { + , leave: function(e) { var self = $(e.currentTarget)[this.type](this._options).data(this.type) if (this.timeout) clearTimeout(this.timeout) @@ -606,7 +606,7 @@ }, self.options.delay.hide) } - , show: function () { + , show: function() { var $tip , pos , actualWidth @@ -633,7 +633,11 @@ .detach() .css({ top: 0, left: 0, display: 'block' }) - this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element) + if (this.options.container) { + $tip.appendTo($.find(this.options.container)); + } else { + $tip.insertAfter(this.$element) + } pos = this.getPosition() @@ -642,48 +646,48 @@ switch (placement) { case 'bottom': - tp = {top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2} + tp = { top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2 } break case 'top': - tp = {top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2} + tp = { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } break case 'left': - tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth} + tp = { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } break case 'right': - tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width} + tp = { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width } break // extend placements (top) case 'topLeft': - tp = {top: pos.top - actualHeight, left: pos.left + pos.width / 2 - (actualWidth * .10)}; + tp = { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - (actualWidth * .10) }; break; case 'topRight': - tp = {top: pos.top - actualHeight, left: pos.left + pos.width / 2 - (actualWidth * .90)}; + tp = { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - (actualWidth * .90) }; break; // extend placements (right) case 'rightTop': - tp = {top: pos.top + pos.height / 2 - (actualHeight *.10), left: pos.left + pos.width}; + tp = { top: pos.top + pos.height / 2 - (actualHeight * .10), left: pos.left + pos.width }; break; case 'rightBottom': - tp = {top: pos.top + pos.height / 2 - (actualHeight * .90), left: pos.left + pos.width}; + tp = { top: pos.top + pos.height / 2 - (actualHeight * .90), left: pos.left + pos.width }; break; // extend placements (bottom) case 'bottomLeft': - tp = {top: pos.top + pos.height, left: pos.left + pos.width / 2 - (actualWidth * .10)}; + tp = { top: pos.top + pos.height, left: pos.left + pos.width / 2 - (actualWidth * .10) }; break; case 'bottomRight': - tp = {top: pos.top + pos.height, left: pos.left + pos.width / 2 - (actualWidth * .90)}; + tp = { top: pos.top + pos.height, left: pos.left + pos.width / 2 - (actualWidth * .90) }; break; // extend placements (left) case 'leftTop': - tp = {top: pos.top + pos.height / 2 - (actualHeight *.10), left: pos.left - actualWidth}; + tp = { top: pos.top + pos.height / 2 - (actualHeight * .10), left: pos.left - actualWidth }; break; case 'leftBottom': - tp = {top: pos.top + pos.height / 2 - (actualHeight * .90), left: pos.left - actualWidth}; + tp = { top: pos.top + pos.height / 2 - (actualHeight * .90), left: pos.left - actualWidth }; break; @@ -694,7 +698,7 @@ } } - , applyPlacement: function(offset, placement){ + , applyPlacement: function(offset, placement) { var $tip = this.tip() , width = $tip[0].offsetWidth , height = $tip[0].offsetHeight @@ -719,7 +723,7 @@ if (placement == 'bottom' || placement == 'top') { delta = 0 - if (offset.left < 0){ + if (offset.left < 0) { delta = offset.left * -2 offset.left = 0 $tip.offset(offset) @@ -735,21 +739,22 @@ if (replace) $tip.offset(offset) } - , replaceArrow: function(delta, dimension, position){ + , replaceArrow: function(delta, dimension, position) { this .arrow() .css(position, delta ? (50 * (1 - delta / dimension) + "%") : '') } - , setContent: function () { + , setContent: function() { var $tip = this.tip() , title = this.getTitle() - $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title) + //$tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title) + $tip.find('.tooltip-inner').text(title) $tip.removeClass('fade in top bottom left right') } - , hide: function () { + , hide: function() { var that = this , $tip = this.tip() , e = $.Event('hide') @@ -760,11 +765,11 @@ $tip.removeClass('in') function removeWithAnimation() { - var timeout = setTimeout(function () { + var timeout = setTimeout(function() { $tip.off($.support.transition.end).detach() }, 500) - $tip.one($.support.transition.end, function () { + $tip.one($.support.transition.end, function() { clearTimeout(timeout) $tip.detach() }) @@ -779,45 +784,45 @@ return this } - , fixTitle: function () { + , fixTitle: function() { var $e = this.$element - if ($e.attr('title') || typeof($e.attr('data-original-title')) != 'string') { + if ($e.attr('title') || typeof ($e.attr('data-original-title')) != 'string') { $e.attr('data-original-title', $e.attr('title') || '').attr('title', '') } } - , hasContent: function () { + , hasContent: function() { return this.getTitle() } - , getPosition: function () { + , getPosition: function() { var el = this.$element[0] return $.extend({}, (typeof el.getBoundingClientRect == 'function') ? el.getBoundingClientRect() : { width: el.offsetWidth - , height: el.offsetHeight + , height: el.offsetHeight }, this.$element.offset()) } - , getTitle: function () { + , getTitle: function() { var title , $e = this.$element , o = this.options title = $e.attr('data-original-title') - || (typeof o.title == 'function' ? o.title.call($e[0]) : o.title) + || (typeof o.title == 'function' ? o.title.call($e[0]) : o.title) return title } - , tip: function () { + , tip: function() { return this.$tip = this.$tip || $(this.options.template) } - , arrow: function(){ + , arrow: function() { return this.$arrow = this.$arrow || this.tip().find(".tooltip-arrow") } - , validate: function () { + , validate: function() { if (!this.$element[0].parentNode) { this.hide() this.$element = null @@ -825,37 +830,37 @@ } } - , enable: function () { + , enable: function() { this.enabled = true } - , disable: function () { + , disable: function() { this.enabled = false } - , toggleEnabled: function () { + , toggleEnabled: function() { this.enabled = !this.enabled } - , toggle: function (e) { + , toggle: function(e) { var self = e ? $(e.currentTarget)[this.type](this._options).data(this.type) : this self.tip().hasClass('in') ? self.hide() : self.show() } - , destroy: function () { + , destroy: function() { this.hide().$element.off('.' + this.type).removeData(this.type) } } - /* TOOLTIP PLUGIN DEFINITION - * ========================= */ + /* TOOLTIP PLUGIN DEFINITION + * ========================= */ var old = $.fn.tooltip - $.fn.tooltip = function ( option ) { - return this.each(function () { + $.fn.tooltip = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('tooltip') , options = typeof option == 'object' && option @@ -868,21 +873,21 @@ $.fn.tooltip.defaults = { animation: true - , placement: 'top' - , selector: false - , template: '
' - , trigger: 'hover focus' - , title: '' - , delay: 0 - , html: false - , container: false + , placement: 'top' + , selector: false + , template: '
' + , trigger: 'hover focus' + , title: '' + , delay: 0 + , html: false + , container: false } - /* TOOLTIP NO CONFLICT - * =================== */ + /* TOOLTIP NO CONFLICT + * =================== */ - $.fn.tooltip.noConflict = function () { + $.fn.tooltip.noConflict = function() { $.fn.tooltip = old return this } @@ -909,15 +914,15 @@ * ======================================================== */ -!function ($) { +!function($) { "use strict"; // jshint ;_; - /* TAB CLASS DEFINITION - * ==================== */ + /* TAB CLASS DEFINITION + * ==================== */ - var Tab = function (element) { + var Tab = function(element) { this.element = $(element) } @@ -925,7 +930,7 @@ constructor: Tab - , show: function () { + , show: function() { var $this = this.element , $ul = $this.closest('ul:not(.dropdown-menu)') , selector = $this.attr('data-target') @@ -938,7 +943,7 @@ selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7 } - if ( $this.parent('li').hasClass('active') ) return + if ($this.parent('li').hasClass('active')) return previous = $ul.find('.active:last a')[0] @@ -950,22 +955,22 @@ if (e.isDefaultPrevented()) return - $target = $(selector) + $target = $.find(selector) this.activate($this.parent('li'), $ul) - this.activate($target, $target.parent(), function () { + this.activate($target, $target.parent(), function() { $this.trigger({ type: 'shown' - , relatedTarget: previous + , relatedTarget: previous }) }) } - , activate: function ( element, container, callback) { + , activate: function(element, container, callback) { var $active = container.find('> .active') , transition = callback - && $.support.transition - && $active.hasClass('fade') + && $.support.transition + && $active.hasClass('fade') function next() { $active @@ -982,7 +987,7 @@ element.removeClass('fade') } - if ( element.parent('.dropdown-menu') ) { + if (element.parent('.dropdown-menu')) { element.closest('li.dropdown').addClass('active') } @@ -998,13 +1003,13 @@ } - /* TAB PLUGIN DEFINITION - * ===================== */ + /* TAB PLUGIN DEFINITION + * ===================== */ var old = $.fn.tab - $.fn.tab = function ( option ) { - return this.each(function () { + $.fn.tab = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('tab') if (!data) $this.data('tab', (data = new Tab(this))) @@ -1015,19 +1020,19 @@ $.fn.tab.Constructor = Tab - /* TAB NO CONFLICT - * =============== */ + /* TAB NO CONFLICT + * =============== */ - $.fn.tab.noConflict = function () { + $.fn.tab.noConflict = function() { $.fn.tab = old return this } - /* TAB DATA-API - * ============ */ + /* TAB DATA-API + * ============ */ - $(document).on('click.tab.data-api', '[data-toggle="tab"], [data-toggle="pill"]', function (e) { + $(document).on('click.tab.data-api', '[data-toggle="tab"], [data-toggle="pill"]', function(e) { e.preventDefault() $(this).tab('show') }) @@ -1052,15 +1057,15 @@ * ============================================================ */ -!function($){ +!function($) { "use strict"; // jshint ;_; - /* TYPEAHEAD PUBLIC CLASS DEFINITION - * ================================= */ + /* TYPEAHEAD PUBLIC CLASS DEFINITION + * ================================= */ - var Typeahead = function (element, options) { + var Typeahead = function(element, options) { this.$element = $(element) this.options = $.extend({}, $.fn.typeahead.defaults, options) this.matcher = this.options.matcher || this.matcher @@ -1077,8 +1082,8 @@ constructor: Typeahead - , select: function () { - // CHANGE (rashidkpc) If nothing is selected, use existing value + , select: function() { + // CHANGE (rashidkpc) If nothing is selected, use existing value var val = this.$menu.find('.active').attr('data-value') || this.$element.val(); this.$element .val(this.updater(val)) @@ -1086,11 +1091,11 @@ return this.hide() } - , updater: function (item) { + , updater: function(item) { return item } - , show: function () { + , show: function() { var pos = $.extend({}, this.$element.position(), { height: this.$element[0].offsetHeight }) @@ -1099,7 +1104,7 @@ .insertAfter(this.$element) .css({ top: pos.top + pos.height - , left: pos.left + , left: pos.left }) .show() @@ -1107,13 +1112,13 @@ return this } - , hide: function () { + , hide: function() { this.$menu.hide() this.shown = false return this } - , lookup: function (event) { + , lookup: function(event) { var items this.query = this.$element.val() @@ -1127,10 +1132,10 @@ return items ? this.process(items) : this } - , process: function (items) { + , process: function(items) { var that = this - items = $.grep(items, function (item) { + items = $.grep(items, function(item) { return that.matcher(item) }) @@ -1143,11 +1148,11 @@ return this.render(items.slice(0, this.options.items)).show() } - , matcher: function (item) { + , matcher: function(item) { return ~item.toLowerCase().indexOf(this.query.toLowerCase()) } - , sorter: function (items) { + , sorter: function(items) { var beginswith = [] , caseSensitive = [] , caseInsensitive = [] @@ -1162,20 +1167,20 @@ return beginswith.concat(caseSensitive, caseInsensitive) } - , highlighter: function (item) { + , highlighter: function(item) { var query = this.query.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&') if (!query) { return item; } - return item.replace(new RegExp('(' + query + ')', 'ig'), function ($1, match) { + return item.replace(new RegExp('(' + query + ')', 'ig'), function($1, match) { return '' + match + '' }); } - , render: function (items) { + , render: function(items) { var that = this - items = $(items).map(function (i, item) { + items = $(items).map(function(i, item) { i = $(that.options.item).attr('data-value', item) i.find('a').html(that.highlighter(item)) return i[0] @@ -1187,7 +1192,7 @@ return this } - , next: function (event) { + , next: function(event) { var active = this.$menu.find('.active').removeClass('active') , next = active.next() @@ -1198,7 +1203,7 @@ next.addClass('active') } - , prev: function (event) { + , prev: function(event) { var active = this.$menu.find('.active').removeClass('active') , prev = active.prev() @@ -1209,12 +1214,12 @@ prev.addClass('active') } - , listen: function () { + , listen: function() { this.$element - .on('focus', $.proxy(this.focus, this)) - .on('blur', $.proxy(this.blur, this)) + .on('focus', $.proxy(this.focus, this)) + .on('blur', $.proxy(this.blur, this)) .on('keypress', $.proxy(this.keypress, this)) - .on('keyup', $.proxy(this.keyup, this)) + .on('keyup', $.proxy(this.keyup, this)) if (this.eventSupported('keydown')) { this.$element.on('keydown', $.proxy(this.keydown, this)) @@ -1226,12 +1231,12 @@ .on('mouseleave', 'li', $.proxy(this.mouseleave, this)) }, - destroy: function () { + destroy: function() { this.$element.off().removeData('typeahead'); this.$menu.off(); } - , eventSupported: function(eventName) { + , eventSupported: function(eventName) { var isSupported = eventName in this.$element if (!isSupported) { this.$element.setAttribute(eventName, 'return;') @@ -1240,7 +1245,7 @@ return isSupported } - , move: function (e) { + , move: function(e) { if (!this.shown) return // grafana change, shift+left parenthesis @@ -1248,7 +1253,7 @@ return; } - switch(e.keyCode) { + switch (e.keyCode) { case 9: // tab case 13: // enter case 27: // escape @@ -1269,18 +1274,18 @@ e.stopPropagation() } - , keydown: function (e) { - this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40,38,9,13,27,57]) + , keydown: function(e) { + this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40, 38, 9, 13, 27, 57]) this.move(e) } - , keypress: function (e) { + , keypress: function(e) { if (this.suppressKeyPressRepeat) return this.move(e) } - , keyup: function (e) { - switch(e.keyCode) { + , keyup: function(e) { + switch (e.keyCode) { case 40: // down arrow case 38: // up arrow case 16: // shift @@ -1303,7 +1308,7 @@ this.lookup(); } - if(e.keyCode === 13 && typeof this.$menu.find('.active').attr('data-value') === 'undefined') { + if (e.keyCode === 13 && typeof this.$menu.find('.active').attr('data-value') === 'undefined') { // CHANGE (rashidkpc). Enter was hit, nothing was selected from typeahead, submit form this.$element.submit(); } else { @@ -1311,31 +1316,31 @@ e.preventDefault() } - } + } - , focus: function (e) { + , focus: function(e) { this.focused = true } - , blur: function (e) { + , blur: function(e) { this.focused = false if (!this.mousedover && this.shown) this.hide() } - , click: function (e) { + , click: function(e) { e.stopPropagation() e.preventDefault() this.select() this.$element.focus() } - , mouseenter: function (e) { + , mouseenter: function(e) { this.mousedover = true this.$menu.find('.active').removeClass('active') $(e.currentTarget).addClass('active') } - , mouseleave: function (e) { + , mouseleave: function(e) { this.mousedover = false if (!this.focused && this.shown) this.hide() } @@ -1348,8 +1353,8 @@ var old = $.fn.typeahead - $.fn.typeahead = function (option) { - return this.each(function () { + $.fn.typeahead = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('typeahead') , options = typeof option == 'object' && option @@ -1360,28 +1365,28 @@ $.fn.typeahead.defaults = { source: [] - , items: 8 - , menu: '' - , item: '
    • ' - , minLength: 1 + , items: 8 + , menu: '' + , item: '
    • ' + , minLength: 1 } $.fn.typeahead.Constructor = Typeahead - /* TYPEAHEAD NO CONFLICT - * =================== */ + /* TYPEAHEAD NO CONFLICT + * =================== */ - $.fn.typeahead.noConflict = function () { + $.fn.typeahead.noConflict = function() { $.fn.typeahead = old return this } - /* TYPEAHEAD DATA-API - * ================== */ + /* TYPEAHEAD DATA-API + * ================== */ - $(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) { + $(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function(e) { var $this = $(this) if ($this.data('typeahead')) return $this.typeahead($this.data()) @@ -1408,24 +1413,24 @@ * ========================================================== */ -!function ($) { +!function($) { "use strict"; // jshint ;_; - /* AFFIX CLASS DEFINITION - * ====================== */ + /* AFFIX CLASS DEFINITION + * ====================== */ - var Affix = function (element, options) { + var Affix = function(element, options) { this.options = $.extend({}, $.fn.affix.defaults, options) this.$window = $(window) .on('scroll.affix.data-api', $.proxy(this.checkPosition, this)) - .on('click.affix.data-api', $.proxy(function () { setTimeout($.proxy(this.checkPosition, this), 1) }, this)) + .on('click.affix.data-api', $.proxy(function() { setTimeout($.proxy(this.checkPosition, this), 1) }, this)) this.$element = $(element) this.checkPosition() } - Affix.prototype.checkPosition = function () { + Affix.prototype.checkPosition = function() { if (!this.$element.is(':visible')) return var scrollHeight = $(document).height() @@ -1442,9 +1447,9 @@ if (typeof offsetBottom == 'function') offsetBottom = offset.bottom() affix = this.unpin != null && (scrollTop + this.unpin <= position.top) ? - false : offsetBottom != null && (position.top + this.$element.height() >= scrollHeight - offsetBottom) ? - 'bottom' : offsetTop != null && scrollTop <= offsetTop ? - 'top' : false + false : offsetBottom != null && (position.top + this.$element.height() >= scrollHeight - offsetBottom) ? + 'bottom' : offsetTop != null && scrollTop <= offsetTop ? + 'top' : false if (this.affixed === affix) return @@ -1455,13 +1460,13 @@ } - /* AFFIX PLUGIN DEFINITION - * ======================= */ + /* AFFIX PLUGIN DEFINITION + * ======================= */ var old = $.fn.affix - $.fn.affix = function (option) { - return this.each(function () { + $.fn.affix = function(option) { + return this.each(function() { var $this = $(this) , data = $this.data('affix') , options = typeof option == 'object' && option @@ -1477,20 +1482,20 @@ } - /* AFFIX NO CONFLICT - * ================= */ + /* AFFIX NO CONFLICT + * ================= */ - $.fn.affix.noConflict = function () { + $.fn.affix.noConflict = function() { $.fn.affix = old return this } - /* AFFIX DATA-API - * ============== */ + /* AFFIX DATA-API + * ============== */ - $(window).on('load', function () { - $('[data-spy="affix"]').each(function () { + $(window).on('load', function() { + $('[data-spy="affix"]').each(function() { var $spy = $(this) , data = $spy.data() diff --git a/public/vendor/flot/jquery.flot.js b/public/vendor/flot/jquery.flot.js index 1b756422711..5c95ef9fcff 100644 --- a/public/vendor/flot/jquery.flot.js +++ b/public/vendor/flot/jquery.flot.js @@ -29,3288 +29,3290 @@ Licensed under the MIT license. * V. 1.1: Fix error handling so e.g. parsing an empty string does * produce a color rather than just crashing. */ -(function($){$.color={};$.color.make=function(r,g,b,a){var o={};o.r=r||0;o.g=g||0;o.b=b||0;o.a=a!=null?a:1;o.add=function(c,d){for(var i=0;i=1){return"rgb("+[o.r,o.g,o.b].join(",")+")"}else{return"rgba("+[o.r,o.g,o.b,o.a].join(",")+")"}};o.normalize=function(){function clamp(min,value,max){return valuemax?max:value}o.r=clamp(0,parseInt(o.r),255);o.g=clamp(0,parseInt(o.g),255);o.b=clamp(0,parseInt(o.b),255);o.a=clamp(0,o.a,1);return o};o.clone=function(){return $.color.make(o.r,o.b,o.g,o.a)};return o.normalize()};$.color.extract=function(elem,css){var c;do{c=elem.css(css).toLowerCase();if(c!=""&&c!="transparent")break;elem=elem.parent()}while(elem.length&&!$.nodeName(elem.get(0),"body"));if(c=="rgba(0, 0, 0, 0)")c="transparent";return $.color.parse(c)};$.color.parse=function(str){var res,m=$.color.make;if(res=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10));if(res=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10),parseFloat(res[4]));if(res=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55);if(res=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55,parseFloat(res[4]));if(res=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str))return m(parseInt(res[1],16),parseInt(res[2],16),parseInt(res[3],16));if(res=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str))return m(parseInt(res[1]+res[1],16),parseInt(res[2]+res[2],16),parseInt(res[3]+res[3],16));var name=$.trim(str).toLowerCase();if(name=="transparent")return m(255,255,255,0);else{res=lookupColors[name]||[0,0,0];return m(res[0],res[1],res[2])}};var lookupColors={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery); +(function($) { $.color = {}; $.color.make = function(r, g, b, a) { var o = {}; o.r = r || 0; o.g = g || 0; o.b = b || 0; o.a = a != null ? a : 1; o.add = function(c, d) { for (var i = 0; i < c.length; ++i)o[c.charAt(i)] += d; return o.normalize() }; o.scale = function(c, f) { for (var i = 0; i < c.length; ++i)o[c.charAt(i)] *= f; return o.normalize() }; o.toString = function() { if (o.a >= 1) { return "rgb(" + [o.r, o.g, o.b].join(",") + ")" } else { return "rgba(" + [o.r, o.g, o.b, o.a].join(",") + ")" } }; o.normalize = function() { function clamp(min, value, max) { return value < min ? min : value > max ? max : value } o.r = clamp(0, parseInt(o.r), 255); o.g = clamp(0, parseInt(o.g), 255); o.b = clamp(0, parseInt(o.b), 255); o.a = clamp(0, o.a, 1); return o }; o.clone = function() { return $.color.make(o.r, o.b, o.g, o.a) }; return o.normalize() }; $.color.extract = function(elem, css) { var c; do { c = elem.css(css).toLowerCase(); if (c != "" && c != "transparent") break; elem = elem.parent() } while (elem.length && !$.nodeName(elem.get(0), "body")); if (c == "rgba(0, 0, 0, 0)") c = "transparent"; return $.color.parse(c) }; $.color.parse = function(str) { var res, m = $.color.make; if (res = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str)) return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10)); if (res = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)) return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10), parseFloat(res[4])); if (res = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str)) return m(parseFloat(res[1]) * 2.55, parseFloat(res[2]) * 2.55, parseFloat(res[3]) * 2.55); if (res = /rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)) return m(parseFloat(res[1]) * 2.55, parseFloat(res[2]) * 2.55, parseFloat(res[3]) * 2.55, parseFloat(res[4])); if (res = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str)) return m(parseInt(res[1], 16), parseInt(res[2], 16), parseInt(res[3], 16)); if (res = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str)) return m(parseInt(res[1] + res[1], 16), parseInt(res[2] + res[2], 16), parseInt(res[3] + res[3], 16)); var name = $.trim(str).toLowerCase(); if (name == "transparent") return m(255, 255, 255, 0); else { res = lookupColors[name] || [0, 0, 0]; return m(res[0], res[1], res[2]) } }; var lookupColors = { aqua: [0, 255, 255], azure: [240, 255, 255], beige: [245, 245, 220], black: [0, 0, 0], blue: [0, 0, 255], brown: [165, 42, 42], cyan: [0, 255, 255], darkblue: [0, 0, 139], darkcyan: [0, 139, 139], darkgrey: [169, 169, 169], darkgreen: [0, 100, 0], darkkhaki: [189, 183, 107], darkmagenta: [139, 0, 139], darkolivegreen: [85, 107, 47], darkorange: [255, 140, 0], darkorchid: [153, 50, 204], darkred: [139, 0, 0], darksalmon: [233, 150, 122], darkviolet: [148, 0, 211], fuchsia: [255, 0, 255], gold: [255, 215, 0], green: [0, 128, 0], indigo: [75, 0, 130], khaki: [240, 230, 140], lightblue: [173, 216, 230], lightcyan: [224, 255, 255], lightgreen: [144, 238, 144], lightgrey: [211, 211, 211], lightpink: [255, 182, 193], lightyellow: [255, 255, 224], lime: [0, 255, 0], magenta: [255, 0, 255], maroon: [128, 0, 0], navy: [0, 0, 128], olive: [128, 128, 0], orange: [255, 165, 0], pink: [255, 192, 203], purple: [128, 0, 128], violet: [128, 0, 128], red: [255, 0, 0], silver: [192, 192, 192], white: [255, 255, 255], yellow: [255, 255, 0] } })(jQuery); // the actual Flot code (function($) { - // Cache the prototype hasOwnProperty for faster access + // Cache the prototype hasOwnProperty for faster access - var hasOwnProperty = Object.prototype.hasOwnProperty; + var hasOwnProperty = Object.prototype.hasOwnProperty; - // A shim to provide 'detach' to jQuery versions prior to 1.4. Using a DOM - // operation produces the same effect as detach, i.e. removing the element - // without touching its jQuery data. + // A shim to provide 'detach' to jQuery versions prior to 1.4. Using a DOM + // operation produces the same effect as detach, i.e. removing the element + // without touching its jQuery data. - // Do not merge this into Flot 0.9, since it requires jQuery 1.4.4+. + // Do not merge this into Flot 0.9, since it requires jQuery 1.4.4+. - if (!$.fn.detach) { - $.fn.detach = function() { - return this.each(function() { - if (this.parentNode) { - this.parentNode.removeChild( this ); - } - }); - }; + if (!$.fn.detach) { + $.fn.detach = function() { + return this.each(function() { + if (this.parentNode) { + this.parentNode.removeChild(this); + } + }); + }; + } + + /////////////////////////////////////////////////////////////////////////// + // The Canvas object is a wrapper around an HTML5 tag. + // + // @constructor + // @param {string} cls List of classes to apply to the canvas. + // @param {element} container Element onto which to append the canvas. + // + // Requiring a container is a little iffy, but unfortunately canvas + // operations don't work unless the canvas is attached to the DOM. + + function Canvas(cls, container) { + + var element = container.children("." + cls)[0]; + + if (element == null) { + + element = document.createElement("canvas"); + element.className = cls; + + $(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 }) + .appendTo(container); + + // If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas + + if (!element.getContext) { + if (window.G_vmlCanvasManager) { + element = window.G_vmlCanvasManager.initElement(element); + } else { + throw new Error("Canvas is not available. If you're using IE with a fall-back such as Excanvas, then there's either a mistake in your conditional include, or the page has no DOCTYPE and is rendering in Quirks Mode."); + } + } } - /////////////////////////////////////////////////////////////////////////// - // The Canvas object is a wrapper around an HTML5 tag. - // - // @constructor - // @param {string} cls List of classes to apply to the canvas. - // @param {element} container Element onto which to append the canvas. - // - // Requiring a container is a little iffy, but unfortunately canvas - // operations don't work unless the canvas is attached to the DOM. + this.element = element; - function Canvas(cls, container) { + var context = this.context = element.getContext("2d"); - var element = container.children("." + cls)[0]; + // Determine the screen's ratio of physical to device-independent + // pixels. This is the ratio between the canvas width that the browser + // advertises and the number of pixels actually present in that space. - if (element == null) { + // The iPhone 4, for example, has a device-independent width of 320px, + // but its screen is actually 640px wide. It therefore has a pixel + // ratio of 2, while most normal devices have a ratio of 1. - element = document.createElement("canvas"); - element.className = cls; + var devicePixelRatio = window.devicePixelRatio || 1, + backingStoreRatio = + context.webkitBackingStorePixelRatio || + context.mozBackingStorePixelRatio || + context.msBackingStorePixelRatio || + context.oBackingStorePixelRatio || + context.backingStorePixelRatio || 1; - $(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 }) - .appendTo(container); + this.pixelRatio = devicePixelRatio / backingStoreRatio; - // If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas + // Size the canvas to match the internal dimensions of its container - if (!element.getContext) { - if (window.G_vmlCanvasManager) { - element = window.G_vmlCanvasManager.initElement(element); - } else { - throw new Error("Canvas is not available. If you're using IE with a fall-back such as Excanvas, then there's either a mistake in your conditional include, or the page has no DOCTYPE and is rendering in Quirks Mode."); - } - } - } + this.resize(container.width(), container.height()); - this.element = element; + // Collection of HTML div layers for text overlaid onto the canvas - var context = this.context = element.getContext("2d"); + this.textContainer = null; + this.text = {}; - // Determine the screen's ratio of physical to device-independent - // pixels. This is the ratio between the canvas width that the browser - // advertises and the number of pixels actually present in that space. + // Cache of text fragments and metrics, so we can avoid expensively + // re-calculating them when the plot is re-rendered in a loop. - // The iPhone 4, for example, has a device-independent width of 320px, - // but its screen is actually 640px wide. It therefore has a pixel - // ratio of 2, while most normal devices have a ratio of 1. + this._textCache = {}; + this._textSizeCache = window.flotTextSizeCache = window.flotTextSizeCache || {}; + } - var devicePixelRatio = window.devicePixelRatio || 1, - backingStoreRatio = - context.webkitBackingStorePixelRatio || - context.mozBackingStorePixelRatio || - context.msBackingStorePixelRatio || - context.oBackingStorePixelRatio || - context.backingStorePixelRatio || 1; + // Resizes the canvas to the given dimensions. + // + // @param {number} width New width of the canvas, in pixels. + // @param {number} width New height of the canvas, in pixels. - this.pixelRatio = devicePixelRatio / backingStoreRatio; + Canvas.prototype.resize = function(width, height) { - // Size the canvas to match the internal dimensions of its container + if (width <= 0 || height <= 0) { + throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height); + } - this.resize(container.width(), container.height()); + var element = this.element, + context = this.context, + pixelRatio = this.pixelRatio; - // Collection of HTML div layers for text overlaid onto the canvas + // Resize the canvas, increasing its density based on the display's + // pixel ratio; basically giving it more pixels without increasing the + // size of its element, to take advantage of the fact that retina + // displays have that many more pixels in the same advertised space. - this.textContainer = null; - this.text = {}; + // Resizing should reset the state (excanvas seems to be buggy though) - // Cache of text fragments and metrics, so we can avoid expensively - // re-calculating them when the plot is re-rendered in a loop. + if (this.width != width) { + element.width = width * pixelRatio; + element.style.width = width + "px"; + this.width = width; + } - this._textCache = {}; - this._textSizeCache = window.flotTextSizeCache = window.flotTextSizeCache || {}; - } + if (this.height != height) { + element.height = height * pixelRatio; + element.style.height = height + "px"; + this.height = height; + } - // Resizes the canvas to the given dimensions. - // - // @param {number} width New width of the canvas, in pixels. - // @param {number} width New height of the canvas, in pixels. + // Save the context, so we can reset in case we get replotted. The + // restore ensure that we're really back at the initial state, and + // should be safe even if we haven't saved the initial state yet. - Canvas.prototype.resize = function(width, height) { + context.restore(); + context.save(); - if (width <= 0 || height <= 0) { - throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height); - } + // Scale the coordinate space to match the display density; so even though we + // may have twice as many pixels, we still want lines and other drawing to + // appear at the same size; the extra pixels will just make them crisper. - var element = this.element, - context = this.context, - pixelRatio = this.pixelRatio; + context.scale(pixelRatio, pixelRatio); + }; - // Resize the canvas, increasing its density based on the display's - // pixel ratio; basically giving it more pixels without increasing the - // size of its element, to take advantage of the fact that retina - // displays have that many more pixels in the same advertised space. - - // Resizing should reset the state (excanvas seems to be buggy though) - - if (this.width != width) { - element.width = width * pixelRatio; - element.style.width = width + "px"; - this.width = width; - } - - if (this.height != height) { - element.height = height * pixelRatio; - element.style.height = height + "px"; - this.height = height; - } - - // Save the context, so we can reset in case we get replotted. The - // restore ensure that we're really back at the initial state, and - // should be safe even if we haven't saved the initial state yet. - - context.restore(); - context.save(); - - // Scale the coordinate space to match the display density; so even though we - // may have twice as many pixels, we still want lines and other drawing to - // appear at the same size; the extra pixels will just make them crisper. - - context.scale(pixelRatio, pixelRatio); - }; - - // Clears the entire canvas area, not including any overlaid HTML text - - Canvas.prototype.clear = function() { - this.context.clearRect(0, 0, this.width, this.height); - }; - - // Finishes rendering the canvas, including managing the text overlay. - - Canvas.prototype.render = function() { - - var cache = this._textCache; - - // For each text layer, add elements marked as active that haven't - // already been rendered, and remove those that are no longer active. - - for (var layerKey in cache) { - if (hasOwnProperty.call(cache, layerKey)) { - - var layer = this.getTextLayer(layerKey), - layerCache = cache[layerKey]; - - layer.hide(); - - for (var styleKey in layerCache) { - if (hasOwnProperty.call(layerCache, styleKey)) { - var styleCache = layerCache[styleKey]; - for (var key in styleCache) { - if (hasOwnProperty.call(styleCache, key)) { - - var positions = styleCache[key].positions; - - for (var i = 0, position; position = positions[i]; i++) { - if (position.active) { - if (!position.rendered) { - layer.append(position.element); - position.rendered = true; - } - } else { - positions.splice(i--, 1); - if (position.rendered) { - position.element.detach(); - } - } - } - - if (positions.length == 0) { - delete styleCache[key]; - } - } - } - } - } - - layer.show(); - } - } - }; - - // Creates (if necessary) and returns the text overlay container. - // - // @param {string} classes String of space-separated CSS classes used to - // uniquely identify the text layer. - // @return {object} The jQuery-wrapped text-layer div. - - Canvas.prototype.getTextLayer = function(classes) { - - var layer = this.text[classes]; - - // Create the text layer if it doesn't exist - - if (layer == null) { - - // Create the text layer container, if it doesn't exist - - if (this.textContainer == null) { - this.textContainer = $("
    ") - .css({ - position: "absolute", - top: 0, - left: 0, - bottom: 0, - right: 0, - 'font-size': "smaller", - color: "#545454" - }) - .insertAfter(this.element); - } - - layer = this.text[classes] = $("
    ") - .addClass(classes) - .css({ - position: "absolute", - top: 0, - left: 0, - bottom: 0, - right: 0 - }) - .appendTo(this.textContainer); - } - - return layer; - }; - - // Creates (if necessary) and returns a text info object. - // - // The object looks like this: - // - // { - // width: Width of the text's wrapper div. - // height: Height of the text's wrapper div. - // element: The jQuery-wrapped HTML div containing the text. - // positions: Array of positions at which this text is drawn. - // } - // - // The positions array contains objects that look like this: - // - // { - // active: Flag indicating whether the text should be visible. - // rendered: Flag indicating whether the text is currently visible. - // element: The jQuery-wrapped HTML div containing the text. - // x: X coordinate at which to draw the text. - // y: Y coordinate at which to draw the text. - // } - // - // Each position after the first receives a clone of the original element. - // - // The idea is that that the width, height, and general 'identity' of the - // text is constant no matter where it is placed; the placements are a - // secondary property. - // - // Canvas maintains a cache of recently-used text info objects; getTextInfo - // either returns the cached element or creates a new entry. - // - // @param {string} layer A string of space-separated CSS classes uniquely - // identifying the layer containing this text. - // @param {string} text Text string to retrieve info for. - // @param {(string|object)=} font Either a string of space-separated CSS - // classes or a font-spec object, defining the text's font and style. - // @param {number=} angle Angle at which to rotate the text, in degrees. - // Angle is currently unused, it will be implemented in the future. - // @param {number=} width Maximum width of the text before it wraps. - // @return {object} a text info object. - - Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) { - - var textStyle, layerCache, styleCache, info; - - // Cast the value to a string, in case we were given a number or such - - text = "" + text; - - // If the font is a font-spec object, generate a CSS font definition - - if (typeof font === "object") { - textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family; - } else { - textStyle = font; - } - - // Retrieve (or create) the cache for the text's layer and styles - - layerCache = this._textCache[layer]; - - if (layerCache == null) { - layerCache = this._textCache[layer] = {}; - } - - styleCache = layerCache[textStyle]; - - if (styleCache == null) { - styleCache = layerCache[textStyle] = {}; - } - - info = styleCache[text]; - - // If we can't find a matching element in our cache, create a new one - - if (info == null) { - - var element = $("
    ").html(text) - .css({ - position: "absolute", - 'max-width': width, - top: -9999 - }) - .appendTo(this.getTextLayer(layer)); - - if (typeof font === "object") { - element.css({ - font: textStyle, - color: font.color - }); - } else if (typeof font === "string") { - element.addClass(font); - } + // Clears the entire canvas area, not including any overlaid HTML text + + Canvas.prototype.clear = function() { + this.context.clearRect(0, 0, this.width, this.height); + }; + + // Finishes rendering the canvas, including managing the text overlay. + + Canvas.prototype.render = function() { + + var cache = this._textCache; + + // For each text layer, add elements marked as active that haven't + // already been rendered, and remove those that are no longer active. + + for (var layerKey in cache) { + if (hasOwnProperty.call(cache, layerKey)) { + + var layer = this.getTextLayer(layerKey), + layerCache = cache[layerKey]; + + layer.hide(); + + for (var styleKey in layerCache) { + if (hasOwnProperty.call(layerCache, styleKey)) { + var styleCache = layerCache[styleKey]; + for (var key in styleCache) { + if (hasOwnProperty.call(styleCache, key)) { + + var positions = styleCache[key].positions; + + for (var i = 0, position; position = positions[i]; i++) { + if (position.active) { + if (!position.rendered) { + layer.append(position.element); + position.rendered = true; + } + } else { + positions.splice(i--, 1); + if (position.rendered) { + position.element.detach(); + } + } + } + + if (positions.length == 0) { + delete styleCache[key]; + } + } + } + } + } + + layer.show(); + } + } + }; + + // Creates (if necessary) and returns the text overlay container. + // + // @param {string} classes String of space-separated CSS classes used to + // uniquely identify the text layer. + // @return {object} The jQuery-wrapped text-layer div. + + Canvas.prototype.getTextLayer = function(classes) { + + var layer = this.text[classes]; + + // Create the text layer if it doesn't exist + + if (layer == null) { + + // Create the text layer container, if it doesn't exist + + if (this.textContainer == null) { + this.textContainer = $("
    ") + .css({ + position: "absolute", + top: 0, + left: 0, + bottom: 0, + right: 0, + 'font-size': "smaller", + color: "#545454" + }) + .insertAfter(this.element); + } + + layer = this.text[classes] = $("
    ") + .addClass(classes) + .css({ + position: "absolute", + top: 0, + left: 0, + bottom: 0, + right: 0 + }) + .appendTo(this.textContainer); + } + + return layer; + }; + + // Creates (if necessary) and returns a text info object. + // + // The object looks like this: + // + // { + // width: Width of the text's wrapper div. + // height: Height of the text's wrapper div. + // element: The jQuery-wrapped HTML div containing the text. + // positions: Array of positions at which this text is drawn. + // } + // + // The positions array contains objects that look like this: + // + // { + // active: Flag indicating whether the text should be visible. + // rendered: Flag indicating whether the text is currently visible. + // element: The jQuery-wrapped HTML div containing the text. + // x: X coordinate at which to draw the text. + // y: Y coordinate at which to draw the text. + // } + // + // Each position after the first receives a clone of the original element. + // + // The idea is that that the width, height, and general 'identity' of the + // text is constant no matter where it is placed; the placements are a + // secondary property. + // + // Canvas maintains a cache of recently-used text info objects; getTextInfo + // either returns the cached element or creates a new entry. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {string} text Text string to retrieve info for. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which to rotate the text, in degrees. + // Angle is currently unused, it will be implemented in the future. + // @param {number=} width Maximum width of the text before it wraps. + // @return {object} a text info object. + + Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) { + + var textStyle, layerCache, styleCache, info; + + // Cast the value to a string, in case we were given a number or such + + text = "" + text; + + // If the font is a font-spec object, generate a CSS font definition + + if (typeof font === "object") { + textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family; + } else { + textStyle = font; + } + + // Retrieve (or create) the cache for the text's layer and styles + + layerCache = this._textCache[layer]; + + if (layerCache == null) { + layerCache = this._textCache[layer] = {}; + } + + styleCache = layerCache[textStyle]; + + if (styleCache == null) { + styleCache = layerCache[textStyle] = {}; + } + + info = styleCache[text]; + + // If we can't find a matching element in our cache, create a new one + + if (info == null) { + + var element = $("
    ").html(text) + .css({ + position: "absolute", + 'max-width': width, + top: -9999 + }) + .appendTo(this.getTextLayer(layer)); + + if (typeof font === "object") { + element.css({ + font: textStyle, + color: font.color + }); + } else if (typeof font === "string") { + element.addClass(font); + } info = styleCache[text] = { element: element, positions: [] }; var size = this._textSizeCache[text]; - if (size) { + if (size) { info.width = size.width; info.height = size.height; - } else { + } else { info.width = element.outerWidth(true); info.height = element.outerHeight(true); this._textSizeCache[text] = { width: info.width, height: info.height }; - } - element.detach(); - } + } + element.detach(); + } - return info; - }; + return info; + }; - // Adds a text string to the canvas text overlay. - // - // The text isn't drawn immediately; it is marked as rendering, which will - // result in its addition to the canvas on the next render pass. - // - // @param {string} layer A string of space-separated CSS classes uniquely - // identifying the layer containing this text. - // @param {number} x X coordinate at which to draw the text. - // @param {number} y Y coordinate at which to draw the text. - // @param {string} text Text string to draw. - // @param {(string|object)=} font Either a string of space-separated CSS - // classes or a font-spec object, defining the text's font and style. - // @param {number=} angle Angle at which to rotate the text, in degrees. - // Angle is currently unused, it will be implemented in the future. - // @param {number=} width Maximum width of the text before it wraps. - // @param {string=} halign Horizontal alignment of the text; either "left", - // "center" or "right". - // @param {string=} valign Vertical alignment of the text; either "top", - // "middle" or "bottom". + // Adds a text string to the canvas text overlay. + // + // The text isn't drawn immediately; it is marked as rendering, which will + // result in its addition to the canvas on the next render pass. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {number} x X coordinate at which to draw the text. + // @param {number} y Y coordinate at which to draw the text. + // @param {string} text Text string to draw. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which to rotate the text, in degrees. + // Angle is currently unused, it will be implemented in the future. + // @param {number=} width Maximum width of the text before it wraps. + // @param {string=} halign Horizontal alignment of the text; either "left", + // "center" or "right". + // @param {string=} valign Vertical alignment of the text; either "top", + // "middle" or "bottom". - Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) { + Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) { - var info = this.getTextInfo(layer, text, font, angle, width), - positions = info.positions; + var info = this.getTextInfo(layer, text, font, angle, width), + positions = info.positions; - // Tweak the div's position to match the text's alignment + // Tweak the div's position to match the text's alignment - if (halign == "center") { - x -= info.width / 2; - } else if (halign == "right") { - x -= info.width; - } + if (halign == "center") { + x -= info.width / 2; + } else if (halign == "right") { + x -= info.width; + } - if (valign == "middle") { - y -= info.height / 2; - } else if (valign == "bottom") { - y -= info.height; - } + if (valign == "middle") { + y -= info.height / 2; + } else if (valign == "bottom") { + y -= info.height; + } - // Determine whether this text already exists at this position. - // If so, mark it for inclusion in the next render pass. + // Determine whether this text already exists at this position. + // If so, mark it for inclusion in the next render pass. - for (var i = 0, position; position = positions[i]; i++) { - if (position.x == x && position.y == y) { - position.active = true; - return; - } - } + for (var i = 0, position; position = positions[i]; i++) { + if (position.x == x && position.y == y) { + position.active = true; + return; + } + } - // If the text doesn't exist at this position, create a new entry + // If the text doesn't exist at this position, create a new entry - // For the very first position we'll re-use the original element, - // while for subsequent ones we'll clone it. + // For the very first position we'll re-use the original element, + // while for subsequent ones we'll clone it. - position = { - active: true, - rendered: false, - element: positions.length ? info.element.clone() : info.element, - x: x, - y: y - }; + position = { + active: true, + rendered: false, + element: positions.length ? info.element.clone() : info.element, + x: x, + y: y + }; - positions.push(position); + positions.push(position); - // Move the element to its final position within the container + // Move the element to its final position within the container - position.element.css({ - top: Math.round(y), - left: Math.round(x), - 'text-align': halign // In case the text wraps - }); - }; + position.element.css({ + top: Math.round(y), + left: Math.round(x), + 'text-align': halign // In case the text wraps + }); + }; - // Removes one or more text strings from the canvas text overlay. - // - // If no parameters are given, all text within the layer is removed. - // - // Note that the text is not immediately removed; it is simply marked as - // inactive, which will result in its removal on the next render pass. - // This avoids the performance penalty for 'clear and redraw' behavior, - // where we potentially get rid of all text on a layer, but will likely - // add back most or all of it later, as when redrawing axes, for example. - // - // @param {string} layer A string of space-separated CSS classes uniquely - // identifying the layer containing this text. - // @param {number=} x X coordinate of the text. - // @param {number=} y Y coordinate of the text. - // @param {string=} text Text string to remove. - // @param {(string|object)=} font Either a string of space-separated CSS - // classes or a font-spec object, defining the text's font and style. - // @param {number=} angle Angle at which the text is rotated, in degrees. - // Angle is currently unused, it will be implemented in the future. + // Removes one or more text strings from the canvas text overlay. + // + // If no parameters are given, all text within the layer is removed. + // + // Note that the text is not immediately removed; it is simply marked as + // inactive, which will result in its removal on the next render pass. + // This avoids the performance penalty for 'clear and redraw' behavior, + // where we potentially get rid of all text on a layer, but will likely + // add back most or all of it later, as when redrawing axes, for example. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {number=} x X coordinate of the text. + // @param {number=} y Y coordinate of the text. + // @param {string=} text Text string to remove. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which the text is rotated, in degrees. + // Angle is currently unused, it will be implemented in the future. - Canvas.prototype.removeText = function(layer, x, y, text, font, angle) { - if (text == null) { - var layerCache = this._textCache[layer]; - if (layerCache != null) { - for (var styleKey in layerCache) { - if (hasOwnProperty.call(layerCache, styleKey)) { - var styleCache = layerCache[styleKey]; - for (var key in styleCache) { - if (hasOwnProperty.call(styleCache, key)) { - var positions = styleCache[key].positions; - for (var i = 0, position; position = positions[i]; i++) { - position.active = false; - } - } - } - } - } - } - } else { - var positions = this.getTextInfo(layer, text, font, angle).positions; - for (var i = 0, position; position = positions[i]; i++) { - if (position.x == x && position.y == y) { - position.active = false; - } - } - } - }; + Canvas.prototype.removeText = function(layer, x, y, text, font, angle) { + if (text == null) { + var layerCache = this._textCache[layer]; + if (layerCache != null) { + for (var styleKey in layerCache) { + if (hasOwnProperty.call(layerCache, styleKey)) { + var styleCache = layerCache[styleKey]; + for (var key in styleCache) { + if (hasOwnProperty.call(styleCache, key)) { + var positions = styleCache[key].positions; + for (var i = 0, position; position = positions[i]; i++) { + position.active = false; + } + } + } + } + } + } + } else { + var positions = this.getTextInfo(layer, text, font, angle).positions; + for (var i = 0, position; position = positions[i]; i++) { + if (position.x == x && position.y == y) { + position.active = false; + } + } + } + }; - /////////////////////////////////////////////////////////////////////////// - // The top-level container for the entire plot. + /////////////////////////////////////////////////////////////////////////// + // The top-level container for the entire plot. - function Plot(placeholder, data_, options_, plugins) { - // data is on the form: - // [ series1, series2 ... ] - // where series is either just the data as [ [x1, y1], [x2, y2], ... ] - // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... } + function Plot(placeholder, data_, options_, plugins) { + // data is on the form: + // [ series1, series2 ... ] + // where series is either just the data as [ [x1, y1], [x2, y2], ... ] + // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... } - var series = [], - options = { - // the color theme used for graphs - colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"], - legend: { - show: true, - noColumns: 1, // number of colums in legend table - labelFormatter: null, // fn: string -> string - labelBoxBorderColor: "#ccc", // border color for the little label boxes - container: null, // container (as jQuery object) to put legend in, null means default on top of graph - position: "ne", // position of default legend container within plot - margin: 5, // distance from grid edge to default legend container within plot - backgroundColor: null, // null means auto-detect - backgroundOpacity: 0.85, // set to 0 to avoid background - sorted: null // default to no legend sorting - }, - xaxis: { - show: null, // null = auto-detect, true = always, false = never - position: "bottom", // or "top" - mode: null, // null or "time" - font: null, // null (derived from CSS in placeholder) or object like { size: 11, lineHeight: 13, style: "italic", weight: "bold", family: "sans-serif", variant: "small-caps" } - color: null, // base color, labels, ticks - tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)" - transform: null, // null or f: number -> number to transform axis - inverseTransform: null, // if transform is set, this should be the inverse function - min: null, // min. value to show, null means set automatically - max: null, // max. value to show, null means set automatically - autoscaleMargin: null, // margin in % to add if auto-setting min/max - ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks - tickFormatter: null, // fn: number -> string - labelWidth: null, // size of tick labels in pixels - labelHeight: null, - reserveSpace: null, // whether to reserve space even if axis isn't shown - tickLength: null, // size in pixels of ticks, or "full" for whole line - alignTicksWithAxis: null, // axis number or null for no sync - tickDecimals: null, // no. of decimals, null means auto - tickSize: null, // number or [number, "unit"] - minTickSize: null // number or [number, "unit"] - }, - yaxis: { - autoscaleMargin: 0.02, - position: "left" // or "right" - }, - xaxes: [], - yaxes: [], - series: { - points: { - show: false, - radius: 3, - lineWidth: 2, // in pixels - fill: true, - fillColor: "#ffffff", - symbol: "circle" // or callback - }, - lines: { - // we don't put in show: false so we can see - // whether lines were actively disabled - lineWidth: 2, // in pixels - fill: false, - fillColor: null, - steps: false - // Omit 'zero', so we can later default its value to - // match that of the 'fill' option. - }, - bars: { - show: false, - lineWidth: 2, // in pixels - barWidth: 1, // in units of the x axis - fill: true, - fillColor: null, - align: "left", // "left", "right", or "center" - horizontal: false, - zero: true - }, - shadowSize: 3, - highlightColor: null - }, - grid: { - show: true, - aboveData: false, - color: "#545454", // primary color used for outline and labels - backgroundColor: null, // null for transparent, else color - borderColor: null, // set if different from the grid color - tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)" - margin: 0, // distance from the canvas edge to the grid - labelMargin: 5, // in pixels - eventSectionHeight: 0, // space for event section - axisMargin: 8, // in pixels - borderWidth: 2, // in pixels - minBorderMargin: null, // in pixels, null means taken from points radius - markings: null, // array of ranges or fn: axes -> array of ranges - markingsColor: "#f4f4f4", - markingsLineWidth: 2, - // interactive stuff - clickable: false, - hoverable: false, - autoHighlight: true, // highlight in case mouse is near - mouseActiveRadius: 10 // how far the mouse can be away to activate an item - }, - interaction: { - redrawOverlayInterval: 1000/60 // time between updates, -1 means in same flow - }, - hooks: {} - }, - surface = null, // the canvas for the plot itself - overlay = null, // canvas for interactive stuff on top of plot - eventHolder = null, // jQuery object that events should be bound to - ctx = null, octx = null, - xaxes = [], yaxes = [], - plotOffset = { left: 0, right: 0, top: 0, bottom: 0}, - plotWidth = 0, plotHeight = 0, - hooks = { - processOptions: [], - processRawData: [], - processDatapoints: [], - processOffset: [], - processRange: [], - drawBackground: [], - drawSeries: [], - draw: [], - bindEvents: [], - drawOverlay: [], - shutdown: [] + var series = [], + options = { + // the color theme used for graphs + colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"], + legend: { + show: true, + noColumns: 1, // number of colums in legend table + labelFormatter: null, // fn: string -> string + labelBoxBorderColor: "#ccc", // border color for the little label boxes + container: null, // container (as jQuery object) to put legend in, null means default on top of graph + position: "ne", // position of default legend container within plot + margin: 5, // distance from grid edge to default legend container within plot + backgroundColor: null, // null means auto-detect + backgroundOpacity: 0.85, // set to 0 to avoid background + sorted: null // default to no legend sorting }, - plot = this; + xaxis: { + show: null, // null = auto-detect, true = always, false = never + position: "bottom", // or "top" + mode: null, // null or "time" + font: null, // null (derived from CSS in placeholder) or object like { size: 11, lineHeight: 13, style: "italic", weight: "bold", family: "sans-serif", variant: "small-caps" } + color: null, // base color, labels, ticks + tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)" + transform: null, // null or f: number -> number to transform axis + inverseTransform: null, // if transform is set, this should be the inverse function + min: null, // min. value to show, null means set automatically + max: null, // max. value to show, null means set automatically + autoscaleMargin: null, // margin in % to add if auto-setting min/max + ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks + tickFormatter: null, // fn: number -> string + labelWidth: null, // size of tick labels in pixels + labelHeight: null, + reserveSpace: null, // whether to reserve space even if axis isn't shown + tickLength: null, // size in pixels of ticks, or "full" for whole line + alignTicksWithAxis: null, // axis number or null for no sync + tickDecimals: null, // no. of decimals, null means auto + tickSize: null, // number or [number, "unit"] + minTickSize: null // number or [number, "unit"] + }, + yaxis: { + autoscaleMargin: 0.02, + position: "left" // or "right" + }, + xaxes: [], + yaxes: [], + series: { + points: { + show: false, + radius: 3, + lineWidth: 2, // in pixels + fill: true, + fillColor: "#ffffff", + symbol: "circle" // or callback + }, + lines: { + // we don't put in show: false so we can see + // whether lines were actively disabled + lineWidth: 2, // in pixels + fill: false, + fillColor: null, + steps: false + // Omit 'zero', so we can later default its value to + // match that of the 'fill' option. + }, + bars: { + show: false, + lineWidth: 2, // in pixels + barWidth: 1, // in units of the x axis + fill: true, + fillColor: null, + align: "left", // "left", "right", or "center" + horizontal: false, + zero: true + }, + shadowSize: 3, + highlightColor: null + }, + grid: { + show: true, + aboveData: false, + color: "#545454", // primary color used for outline and labels + backgroundColor: null, // null for transparent, else color + borderColor: null, // set if different from the grid color + tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)" + margin: 0, // distance from the canvas edge to the grid + labelMargin: 5, // in pixels + eventSectionHeight: 0, // space for event section + axisMargin: 8, // in pixels + borderWidth: 2, // in pixels + minBorderMargin: null, // in pixels, null means taken from points radius + markings: null, // array of ranges or fn: axes -> array of ranges + markingsColor: "#f4f4f4", + markingsLineWidth: 2, + // interactive stuff + clickable: false, + hoverable: false, + autoHighlight: true, // highlight in case mouse is near + mouseActiveRadius: 10 // how far the mouse can be away to activate an item + }, + interaction: { + redrawOverlayInterval: 1000 / 60 // time between updates, -1 means in same flow + }, + hooks: {} + }, + surface = null, // the canvas for the plot itself + overlay = null, // canvas for interactive stuff on top of plot + eventHolder = null, // jQuery object that events should be bound to + ctx = null, octx = null, + xaxes = [], yaxes = [], + plotOffset = { left: 0, right: 0, top: 0, bottom: 0 }, + plotWidth = 0, plotHeight = 0, + hooks = { + processOptions: [], + processRawData: [], + processDatapoints: [], + processOffset: [], + processRange: [], + drawBackground: [], + drawSeries: [], + draw: [], + bindEvents: [], + drawOverlay: [], + shutdown: [] + }, + plot = this; - // public functions - plot.setData = setData; - plot.setupGrid = setupGrid; - plot.draw = draw; - plot.getPlaceholder = function() { return placeholder; }; - plot.getCanvas = function() { return surface.element; }; - plot.getPlotOffset = function() { return plotOffset; }; - plot.width = function () { return plotWidth; }; - plot.height = function () { return plotHeight; }; - plot.offset = function () { - var o = eventHolder.offset(); - o.left += plotOffset.left; - o.top += plotOffset.top; - return o; - }; - plot.getData = function () { return series; }; - plot.getAxes = function () { - var res = {}, i; - $.each(xaxes.concat(yaxes), function (_, axis) { - if (axis) - res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis; - }); - return res; - }; - plot.getXAxes = function () { return xaxes; }; - plot.getYAxes = function () { return yaxes; }; - plot.c2p = canvasToAxisCoords; - plot.p2c = axisToCanvasCoords; - plot.getOptions = function () { return options; }; - plot.highlight = highlight; - plot.unhighlight = unhighlight; - plot.triggerRedrawOverlay = triggerRedrawOverlay; - plot.pointOffset = function(point) { - return { - left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10), - top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10) - }; - }; - plot.shutdown = shutdown; - plot.destroy = function () { - shutdown(); - placeholder.removeData("plot").empty(); + // public functions + plot.setData = setData; + plot.setupGrid = setupGrid; + plot.draw = draw; + plot.getPlaceholder = function() { return placeholder; }; + plot.getCanvas = function() { return surface.element; }; + plot.getPlotOffset = function() { return plotOffset; }; + plot.width = function() { return plotWidth; }; + plot.height = function() { return plotHeight; }; + plot.offset = function() { + var o = eventHolder.offset(); + o.left += plotOffset.left; + o.top += plotOffset.top; + return o; + }; + plot.getData = function() { return series; }; + plot.getAxes = function() { + var res = {}, i; + $.each(xaxes.concat(yaxes), function(_, axis) { + if (axis) + res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis; + }); + return res; + }; + plot.getXAxes = function() { return xaxes; }; + plot.getYAxes = function() { return yaxes; }; + plot.c2p = canvasToAxisCoords; + plot.p2c = axisToCanvasCoords; + plot.getOptions = function() { return options; }; + plot.highlight = highlight; + plot.unhighlight = unhighlight; + plot.triggerRedrawOverlay = triggerRedrawOverlay; + plot.pointOffset = function(point) { + return { + left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10), + top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10) + }; + }; + plot.shutdown = shutdown; + plot.destroy = function() { + shutdown(); + placeholder.removeData("plot").empty(); - series = []; - options = null; - surface = null; - overlay = null; - eventHolder = null; - ctx = null; - octx = null; - xaxes = []; - yaxes = []; - hooks = null; - highlights = []; - plot = null; - }; - plot.resize = function () { - var width = placeholder.width(), - height = placeholder.height(); - surface.resize(width, height); - overlay.resize(width, height); + series = []; + options = null; + surface = null; + overlay = null; + eventHolder = null; + ctx = null; + octx = null; + xaxes = []; + yaxes = []; + hooks = null; + highlights = []; + plot = null; + }; + plot.resize = function() { + var width = placeholder.width(), + height = placeholder.height(); + surface.resize(width, height); + overlay.resize(width, height); + }; + + // public attributes + plot.hooks = hooks; + + // initialize + initPlugins(plot); + parseOptions(options_); + setupCanvases(); + setData(data_); + setupGrid(); + draw(); + bindEvents(); + + + function executeHooks(hook, args) { + args = [plot].concat(args); + for (var i = 0; i < hook.length; ++i) + hook[i].apply(this, args); + } + + function initPlugins() { + + // References to key classes, allowing plugins to modify them + + var classes = { + Canvas: Canvas + }; + + for (var i = 0; i < plugins.length; ++i) { + var p = plugins[i]; + p.init(plot, classes); + if (p.options) + $.extend(true, options, p.options); + } + } + + function parseOptions(opts) { + + $.extend(true, options, opts); + + // $.extend merges arrays, rather than replacing them. When less + // colors are provided than the size of the default palette, we + // end up with those colors plus the remaining defaults, which is + // not expected behavior; avoid it by replacing them here. + + if (opts && opts.colors) { + options.colors = opts.colors; + } + + if (options.xaxis.color == null) + options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + if (options.yaxis.color == null) + options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + + if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility + options.xaxis.tickColor = options.grid.tickColor || options.xaxis.color; + if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility + options.yaxis.tickColor = options.grid.tickColor || options.yaxis.color; + + if (options.grid.borderColor == null) + options.grid.borderColor = options.grid.color; + if (options.grid.tickColor == null) + options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + + // Fill in defaults for axis options, including any unspecified + // font-spec fields, if a font-spec was provided. + + // If no x/y axis options were provided, create one of each anyway, + // since the rest of the code assumes that they exist. + + var i, axisOptions, axisCount, + fontSize = placeholder.css("font-size"), + fontSizeDefault = fontSize ? +fontSize.replace("px", "") : 13, + fontDefaults = { + style: placeholder.css("font-style"), + size: Math.round(0.8 * fontSizeDefault), + variant: placeholder.css("font-variant"), + weight: placeholder.css("font-weight"), + family: placeholder.css("font-family") }; - // public attributes - plot.hooks = hooks; + axisCount = options.xaxes.length || 1; + for (i = 0; i < axisCount; ++i) { - // initialize - initPlugins(plot); - parseOptions(options_); - setupCanvases(); - setData(data_); - setupGrid(); - draw(); - bindEvents(); - - - function executeHooks(hook, args) { - args = [plot].concat(args); - for (var i = 0; i < hook.length; ++i) - hook[i].apply(this, args); + axisOptions = options.xaxes[i]; + if (axisOptions && !axisOptions.tickColor) { + axisOptions.tickColor = axisOptions.color; } - function initPlugins() { + axisOptions = $.extend(true, {}, options.xaxis, axisOptions); + options.xaxes[i] = axisOptions; - // References to key classes, allowing plugins to modify them + if (axisOptions.font) { + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); + if (!axisOptions.font.color) { + axisOptions.font.color = axisOptions.color; + } + if (!axisOptions.font.lineHeight) { + axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15); + } + } + } - var classes = { - Canvas: Canvas - }; + axisCount = options.yaxes.length || 1; + for (i = 0; i < axisCount; ++i) { - for (var i = 0; i < plugins.length; ++i) { - var p = plugins[i]; - p.init(plot, classes); - if (p.options) - $.extend(true, options, p.options); - } + axisOptions = options.yaxes[i]; + if (axisOptions && !axisOptions.tickColor) { + axisOptions.tickColor = axisOptions.color; } - function parseOptions(opts) { + axisOptions = $.extend(true, {}, options.yaxis, axisOptions); + options.yaxes[i] = axisOptions; - $.extend(true, options, opts); + if (axisOptions.font) { + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); + if (!axisOptions.font.color) { + axisOptions.font.color = axisOptions.color; + } + if (!axisOptions.font.lineHeight) { + axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15); + } + } + } - // $.extend merges arrays, rather than replacing them. When less - // colors are provided than the size of the default palette, we - // end up with those colors plus the remaining defaults, which is - // not expected behavior; avoid it by replacing them here. + // backwards compatibility, to be removed in future + if (options.xaxis.noTicks && options.xaxis.ticks == null) + options.xaxis.ticks = options.xaxis.noTicks; + if (options.yaxis.noTicks && options.yaxis.ticks == null) + options.yaxis.ticks = options.yaxis.noTicks; + if (options.x2axis) { + options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis); + options.xaxes[1].position = "top"; + // Override the inherit to allow the axis to auto-scale + if (options.x2axis.min == null) { + options.xaxes[1].min = null; + } + if (options.x2axis.max == null) { + options.xaxes[1].max = null; + } + } + if (options.y2axis) { + options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis); + options.yaxes[1].position = "right"; + // Override the inherit to allow the axis to auto-scale + if (options.y2axis.min == null) { + options.yaxes[1].min = null; + } + if (options.y2axis.max == null) { + options.yaxes[1].max = null; + } + } + if (options.grid.coloredAreas) + options.grid.markings = options.grid.coloredAreas; + if (options.grid.coloredAreasColor) + options.grid.markingsColor = options.grid.coloredAreasColor; + if (options.lines) + $.extend(true, options.series.lines, options.lines); + if (options.points) + $.extend(true, options.series.points, options.points); + if (options.bars) + $.extend(true, options.series.bars, options.bars); + if (options.shadowSize != null) + options.series.shadowSize = options.shadowSize; + if (options.highlightColor != null) + options.series.highlightColor = options.highlightColor; - if (opts && opts.colors) { - options.colors = opts.colors; - } + // save options on axes for future reference + for (i = 0; i < options.xaxes.length; ++i) + getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i]; + for (i = 0; i < options.yaxes.length; ++i) + getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i]; - if (options.xaxis.color == null) - options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); - if (options.yaxis.color == null) - options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + // add hooks from options + for (var n in hooks) + if (options.hooks[n] && options.hooks[n].length) + hooks[n] = hooks[n].concat(options.hooks[n]); - if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility - options.xaxis.tickColor = options.grid.tickColor || options.xaxis.color; - if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility - options.yaxis.tickColor = options.grid.tickColor || options.yaxis.color; + executeHooks(hooks.processOptions, [options]); + } - if (options.grid.borderColor == null) - options.grid.borderColor = options.grid.color; - if (options.grid.tickColor == null) - options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + function setData(d) { + series = parseData(d); + fillInSeriesOptions(); + processData(); + } - // Fill in defaults for axis options, including any unspecified - // font-spec fields, if a font-spec was provided. + function parseData(d) { + var res = []; + for (var i = 0; i < d.length; ++i) { + var s = $.extend(true, {}, options.series); - // If no x/y axis options were provided, create one of each anyway, - // since the rest of the code assumes that they exist. + if (d[i].data != null) { + s.data = d[i].data; // move the data instead of deep-copy + delete d[i].data; - var i, axisOptions, axisCount, - fontSize = placeholder.css("font-size"), - fontSizeDefault = fontSize ? +fontSize.replace("px", "") : 13, - fontDefaults = { - style: placeholder.css("font-style"), - size: Math.round(0.8 * fontSizeDefault), - variant: placeholder.css("font-variant"), - weight: placeholder.css("font-weight"), - family: placeholder.css("font-family") - }; + $.extend(true, s, d[i]); - axisCount = options.xaxes.length || 1; - for (i = 0; i < axisCount; ++i) { + d[i].data = s.data; + } + else + s.data = d[i]; + res.push(s); + } - axisOptions = options.xaxes[i]; - if (axisOptions && !axisOptions.tickColor) { - axisOptions.tickColor = axisOptions.color; - } + return res; + } - axisOptions = $.extend(true, {}, options.xaxis, axisOptions); - options.xaxes[i] = axisOptions; + function axisNumber(obj, coord) { + var a = obj[coord + "axis"]; + if (typeof a == "object") // if we got a real axis, extract number + a = a.n; + if (typeof a != "number") + a = 1; // default to first axis + return a; + } - if (axisOptions.font) { - axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); - if (!axisOptions.font.color) { - axisOptions.font.color = axisOptions.color; - } - if (!axisOptions.font.lineHeight) { - axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15); - } - } - } + function allAxes() { + // return flat array without annoying null entries + return $.grep(xaxes.concat(yaxes), function(a) { return a; }); + } - axisCount = options.yaxes.length || 1; - for (i = 0; i < axisCount; ++i) { + function canvasToAxisCoords(pos) { + // return an object with x/y corresponding to all used axes + var res = {}, i, axis; + for (i = 0; i < xaxes.length; ++i) { + axis = xaxes[i]; + if (axis) + res["x" + axis.n] = axis.c2p(pos.left); + } - axisOptions = options.yaxes[i]; - if (axisOptions && !axisOptions.tickColor) { - axisOptions.tickColor = axisOptions.color; - } + for (i = 0; i < yaxes.length; ++i) { + axis = yaxes[i]; + if (axis) + res["y" + axis.n] = axis.c2p(pos.top); + } - axisOptions = $.extend(true, {}, options.yaxis, axisOptions); - options.yaxes[i] = axisOptions; + if (res.x1 !== undefined) + res.x = res.x1; + if (res.y1 !== undefined) + res.y = res.y1; - if (axisOptions.font) { - axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); - if (!axisOptions.font.color) { - axisOptions.font.color = axisOptions.color; - } - if (!axisOptions.font.lineHeight) { - axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15); - } - } - } + return res; + } - // backwards compatibility, to be removed in future - if (options.xaxis.noTicks && options.xaxis.ticks == null) - options.xaxis.ticks = options.xaxis.noTicks; - if (options.yaxis.noTicks && options.yaxis.ticks == null) - options.yaxis.ticks = options.yaxis.noTicks; - if (options.x2axis) { - options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis); - options.xaxes[1].position = "top"; - // Override the inherit to allow the axis to auto-scale - if (options.x2axis.min == null) { - options.xaxes[1].min = null; - } - if (options.x2axis.max == null) { - options.xaxes[1].max = null; - } - } - if (options.y2axis) { - options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis); - options.yaxes[1].position = "right"; - // Override the inherit to allow the axis to auto-scale - if (options.y2axis.min == null) { - options.yaxes[1].min = null; - } - if (options.y2axis.max == null) { - options.yaxes[1].max = null; - } - } - if (options.grid.coloredAreas) - options.grid.markings = options.grid.coloredAreas; - if (options.grid.coloredAreasColor) - options.grid.markingsColor = options.grid.coloredAreasColor; - if (options.lines) - $.extend(true, options.series.lines, options.lines); - if (options.points) - $.extend(true, options.series.points, options.points); - if (options.bars) - $.extend(true, options.series.bars, options.bars); - if (options.shadowSize != null) - options.series.shadowSize = options.shadowSize; - if (options.highlightColor != null) - options.series.highlightColor = options.highlightColor; + function axisToCanvasCoords(pos) { + // get canvas coords from the first pair of x/y found in pos + var res = {}, i, axis, key; - // save options on axes for future reference - for (i = 0; i < options.xaxes.length; ++i) - getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i]; - for (i = 0; i < options.yaxes.length; ++i) - getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i]; + for (i = 0; i < xaxes.length; ++i) { + axis = xaxes[i]; + if (axis && axis.used) { + key = "x" + axis.n; + if (pos[key] == null && axis.n == 1) + key = "x"; - // add hooks from options - for (var n in hooks) - if (options.hooks[n] && options.hooks[n].length) - hooks[n] = hooks[n].concat(options.hooks[n]); + if (pos[key] != null) { + res.left = axis.p2c(pos[key]); + break; + } + } + } - executeHooks(hooks.processOptions, [options]); + for (i = 0; i < yaxes.length; ++i) { + axis = yaxes[i]; + if (axis && axis.used) { + key = "y" + axis.n; + if (pos[key] == null && axis.n == 1) + key = "y"; + + if (pos[key] != null) { + res.top = axis.p2c(pos[key]); + break; + } + } + } + + return res; + } + + function getOrCreateAxis(axes, number) { + if (!axes[number - 1]) + axes[number - 1] = { + n: number, // save the number for future reference + direction: axes == xaxes ? "x" : "y", + options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis) + }; + + return axes[number - 1]; + } + + function fillInSeriesOptions() { + + var neededColors = series.length, maxIndex = -1, i; + + // Subtract the number of series that already have fixed colors or + // color indexes from the number that we still need to generate. + + for (i = 0; i < series.length; ++i) { + var sc = series[i].color; + if (sc != null) { + neededColors--; + if (typeof sc == "number" && sc > maxIndex) { + maxIndex = sc; + } + } + } + + // If any of the series have fixed color indexes, then we need to + // generate at least as many colors as the highest index. + + if (neededColors <= maxIndex) { + neededColors = maxIndex + 1; + } + + // Generate all the colors, using first the option colors and then + // variations on those colors once they're exhausted. + + var c, colors = [], colorPool = options.colors, + colorPoolSize = colorPool.length, variation = 0; + + for (i = 0; i < neededColors; i++) { + + c = $.color.parse(colorPool[i % colorPoolSize] || "#666"); + + // Each time we exhaust the colors in the pool we adjust + // a scaling factor used to produce more variations on + // those colors. The factor alternates negative/positive + // to produce lighter/darker colors. + + // Reset the variation after every few cycles, or else + // it will end up producing only white or black colors. + + if (i % colorPoolSize == 0 && i) { + if (variation >= 0) { + if (variation < 0.5) { + variation = -variation - 0.2; + } else variation = 0; + } else variation = -variation; } - function setData(d) { - series = parseData(d); - fillInSeriesOptions(); - processData(); + colors[i] = c.scale('rgb', 1 + variation); + } + + // Finalize the series options, filling in their colors + + var colori = 0, s; + for (i = 0; i < series.length; ++i) { + s = series[i]; + + // assign colors + if (s.color == null) { + s.color = colors[colori].toString(); + ++colori; + } + else if (typeof s.color == "number") + s.color = colors[s.color].toString(); + + // turn on lines automatically in case nothing is set + if (s.lines.show == null) { + var v, show = true; + for (v in s) + if (s[v] && s[v].show) { + show = false; + break; + } + if (show) + s.lines.show = true; } - function parseData(d) { - var res = []; - for (var i = 0; i < d.length; ++i) { - var s = $.extend(true, {}, options.series); + // If nothing was provided for lines.zero, default it to match + // lines.fill, since areas by default should extend to zero. - if (d[i].data != null) { - s.data = d[i].data; // move the data instead of deep-copy - delete d[i].data; - - $.extend(true, s, d[i]); - - d[i].data = s.data; - } - else - s.data = d[i]; - res.push(s); - } - - return res; + if (s.lines.zero == null) { + s.lines.zero = !!s.lines.fill; } - function axisNumber(obj, coord) { - var a = obj[coord + "axis"]; - if (typeof a == "object") // if we got a real axis, extract number - a = a.n; - if (typeof a != "number") - a = 1; // default to first axis - return a; + // setup axes + s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x")); + s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y")); + } + } + + function processData() { + var topSentry = Number.POSITIVE_INFINITY, + bottomSentry = Number.NEGATIVE_INFINITY, + fakeInfinity = Number.MAX_VALUE, + i, j, k, m, length, + s, points, ps, x, y, axis, val, f, p, + data, format; + + function updateAxis(axis, min, max) { + if (min < axis.datamin && min != -fakeInfinity) + axis.datamin = min; + if (max > axis.datamax && max != fakeInfinity) + axis.datamax = max; + } + + $.each(allAxes(), function(_, axis) { + // init axis + axis.datamin = topSentry; + axis.datamax = bottomSentry; + axis.used = false; + }); + + for (i = 0; i < series.length; ++i) { + s = series[i]; + s.datapoints = { points: [] }; + + executeHooks(hooks.processRawData, [s, s.data, s.datapoints]); + } + + // first pass: clean and copy data + for (i = 0; i < series.length; ++i) { + s = series[i]; + + data = s.data; + format = s.datapoints.format; + + if (!format) { + format = []; + // find out how to copy + format.push({ x: true, number: true, required: true }); + format.push({ y: true, number: true, required: true }); + + if (s.stack || s.bars.show || (s.lines.show && s.lines.fill)) { + var autoscale = !!((s.bars.show && s.bars.zero) || (s.lines.show && s.lines.zero)); + format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale }); + if (s.bars.horizontal) { + delete format[format.length - 1].y; + format[format.length - 1].x = true; + } + } + + s.datapoints.format = format; } - function allAxes() { - // return flat array without annoying null entries - return $.grep(xaxes.concat(yaxes), function (a) { return a; }); - } + if (s.datapoints.pointsize != null) + continue; // already filled in - function canvasToAxisCoords(pos) { - // return an object with x/y corresponding to all used axes - var res = {}, i, axis; - for (i = 0; i < xaxes.length; ++i) { - axis = xaxes[i]; - if (axis) - res["x" + axis.n] = axis.c2p(pos.left); - } + s.datapoints.pointsize = format.length; - for (i = 0; i < yaxes.length; ++i) { - axis = yaxes[i]; - if (axis) - res["y" + axis.n] = axis.c2p(pos.top); - } + ps = s.datapoints.pointsize; + points = s.datapoints.points; - if (res.x1 !== undefined) - res.x = res.x1; - if (res.y1 !== undefined) - res.y = res.y1; + var insertSteps = s.lines.show && s.lines.steps; + s.xaxis.used = s.yaxis.used = true; - return res; - } + for (j = k = 0; j < data.length; ++j, k += ps) { + p = data[j]; - function axisToCanvasCoords(pos) { - // get canvas coords from the first pair of x/y found in pos - var res = {}, i, axis, key; + var nullify = p == null; + if (!nullify) { + for (m = 0; m < ps; ++m) { + val = p[m]; + f = format[m]; - for (i = 0; i < xaxes.length; ++i) { - axis = xaxes[i]; - if (axis && axis.used) { - key = "x" + axis.n; - if (pos[key] == null && axis.n == 1) - key = "x"; - - if (pos[key] != null) { - res.left = axis.p2c(pos[key]); - break; - } - } - } - - for (i = 0; i < yaxes.length; ++i) { - axis = yaxes[i]; - if (axis && axis.used) { - key = "y" + axis.n; - if (pos[key] == null && axis.n == 1) - key = "y"; - - if (pos[key] != null) { - res.top = axis.p2c(pos[key]); - break; - } - } - } - - return res; - } - - function getOrCreateAxis(axes, number) { - if (!axes[number - 1]) - axes[number - 1] = { - n: number, // save the number for future reference - direction: axes == xaxes ? "x" : "y", - options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis) - }; - - return axes[number - 1]; - } - - function fillInSeriesOptions() { - - var neededColors = series.length, maxIndex = -1, i; - - // Subtract the number of series that already have fixed colors or - // color indexes from the number that we still need to generate. - - for (i = 0; i < series.length; ++i) { - var sc = series[i].color; - if (sc != null) { - neededColors--; - if (typeof sc == "number" && sc > maxIndex) { - maxIndex = sc; - } - } - } - - // If any of the series have fixed color indexes, then we need to - // generate at least as many colors as the highest index. - - if (neededColors <= maxIndex) { - neededColors = maxIndex + 1; - } - - // Generate all the colors, using first the option colors and then - // variations on those colors once they're exhausted. - - var c, colors = [], colorPool = options.colors, - colorPoolSize = colorPool.length, variation = 0; - - for (i = 0; i < neededColors; i++) { - - c = $.color.parse(colorPool[i % colorPoolSize] || "#666"); - - // Each time we exhaust the colors in the pool we adjust - // a scaling factor used to produce more variations on - // those colors. The factor alternates negative/positive - // to produce lighter/darker colors. - - // Reset the variation after every few cycles, or else - // it will end up producing only white or black colors. - - if (i % colorPoolSize == 0 && i) { - if (variation >= 0) { - if (variation < 0.5) { - variation = -variation - 0.2; - } else variation = 0; - } else variation = -variation; + if (f) { + if (f.number && val != null) { + val = +val; // convert to number + if (isNaN(val)) + val = null; + else if (val == Infinity) + val = fakeInfinity; + else if (val == -Infinity) + val = -fakeInfinity; } - colors[i] = c.scale('rgb', 1 + variation); - } + if (val == null) { + if (f.required) + nullify = true; - // Finalize the series options, filling in their colors - - var colori = 0, s; - for (i = 0; i < series.length; ++i) { - s = series[i]; - - // assign colors - if (s.color == null) { - s.color = colors[colori].toString(); - ++colori; + if (f.defaultValue != null) + val = f.defaultValue; } - else if (typeof s.color == "number") - s.color = colors[s.color].toString(); + } - // turn on lines automatically in case nothing is set - if (s.lines.show == null) { - var v, show = true; - for (v in s) - if (s[v] && s[v].show) { - show = false; - break; - } - if (show) - s.lines.show = true; - } - - // If nothing was provided for lines.zero, default it to match - // lines.fill, since areas by default should extend to zero. - - if (s.lines.zero == null) { - s.lines.zero = !!s.lines.fill; - } - - // setup axes - s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x")); - s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y")); + points[k + m] = val; } - } + } - function processData() { - var topSentry = Number.POSITIVE_INFINITY, - bottomSentry = Number.NEGATIVE_INFINITY, - fakeInfinity = Number.MAX_VALUE, - i, j, k, m, length, - s, points, ps, x, y, axis, val, f, p, - data, format; - - function updateAxis(axis, min, max) { - if (min < axis.datamin && min != -fakeInfinity) - axis.datamin = min; - if (max > axis.datamax && max != fakeInfinity) - axis.datamax = max; - } - - $.each(allAxes(), function (_, axis) { - // init axis - axis.datamin = topSentry; - axis.datamax = bottomSentry; - axis.used = false; - }); - - for (i = 0; i < series.length; ++i) { - s = series[i]; - s.datapoints = { points: [] }; - - executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]); - } - - // first pass: clean and copy data - for (i = 0; i < series.length; ++i) { - s = series[i]; - - data = s.data; - format = s.datapoints.format; - - if (!format) { - format = []; - // find out how to copy - format.push({ x: true, number: true, required: true }); - format.push({ y: true, number: true, required: true }); - - if (s.stack || s.bars.show || (s.lines.show && s.lines.fill)) { - var autoscale = !!((s.bars.show && s.bars.zero) || (s.lines.show && s.lines.zero)); - format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale }); - if (s.bars.horizontal) { - delete format[format.length - 1].y; - format[format.length - 1].x = true; - } - } - - s.datapoints.format = format; - } - - if (s.datapoints.pointsize != null) - continue; // already filled in - - s.datapoints.pointsize = format.length; - - ps = s.datapoints.pointsize; - points = s.datapoints.points; - - var insertSteps = s.lines.show && s.lines.steps; - s.xaxis.used = s.yaxis.used = true; - - for (j = k = 0; j < data.length; ++j, k += ps) { - p = data[j]; - - var nullify = p == null; - if (!nullify) { - for (m = 0; m < ps; ++m) { - val = p[m]; - f = format[m]; - - if (f) { - if (f.number && val != null) { - val = +val; // convert to number - if (isNaN(val)) - val = null; - else if (val == Infinity) - val = fakeInfinity; - else if (val == -Infinity) - val = -fakeInfinity; - } - - if (val == null) { - if (f.required) - nullify = true; - - if (f.defaultValue != null) - val = f.defaultValue; - } - } - - points[k + m] = val; - } - } - - if (nullify) { - for (m = 0; m < ps; ++m) { - val = points[k + m]; - if (val != null) { - f = format[m]; - // extract min/max info - if (f.autoscale !== false) { - if (f.x) { - updateAxis(s.xaxis, val, val); - } - if (f.y) { - updateAxis(s.yaxis, val, val); - } - } - } - points[k + m] = null; - } - } - - if (insertSteps && k > 0 && (!nullify || points[k - ps] != null)) { - // copy the point to make room for a middle point - for (m = 0; m < ps; ++m) - points[k + ps + m] = points[k + m]; - - // middle point has same y - points[k + 1] = points[k - ps + 1] || 0; - - // if series has null values, let's give the last !null value a nice step - if(nullify) - points[k] = p[0]; - - // we've added a point, better reflect that - k += ps; - } - } - } - - // give the hooks a chance to run - for (i = 0; i < series.length; ++i) { - s = series[i]; - points = s.datapoints.points; - ps = s.datapoints.pointsize; - - // grafana - if (s.transform === 'negative-Y') { - for (j = 0; j < points.length; j += ps) { - if (points[j] == null) - continue; - - val = points[j + 1]; - points[j + 1] = -val; + if (nullify) { + for (m = 0; m < ps; ++m) { + val = points[k + m]; + if (val != null) { + f = format[m]; + // extract min/max info + if (f.autoscale !== false) { + if (f.x) { + updateAxis(s.xaxis, val, val); + } + if (f.y) { + updateAxis(s.yaxis, val, val); } } - - executeHooks(hooks.processDatapoints, [ s, s.datapoints]); + } + points[k + m] = null; } - - // second pass: find datamax/datamin for auto-scaling - for (i = 0; i < series.length; ++i) { - s = series[i]; - points = s.datapoints.points; - ps = s.datapoints.pointsize; - format = s.datapoints.format; - - var xmin = topSentry, ymin = topSentry, - xmax = bottomSentry, ymax = bottomSentry; - - for (j = 0; j < points.length; j += ps) { - if (points[j] == null) - continue; - - for (m = 0; m < ps; ++m) { - val = points[j + m]; - f = format[m]; - if (!f || f.autoscale === false || val == fakeInfinity || val == -fakeInfinity) - continue; - - if (f.x) { - if (val < xmin) - xmin = val; - if (val > xmax) - xmax = val; - } - if (f.y) { - if (val < ymin) - ymin = val; - if (val > ymax) - ymax = val; - } - } - } - - if (s.bars.show) { - // make sure we got room for the bar on the dancing floor - var delta; - - switch (s.bars.align) { - case "left": - delta = 0; - break; - case "right": - delta = -s.bars.barWidth; - break; - default: - delta = -s.bars.barWidth / 2; - } - - if (s.bars.horizontal) { - ymin += delta; - ymax += delta + s.bars.barWidth; - } - else { - xmin += delta; - xmax += delta + s.bars.barWidth; - } - } - - updateAxis(s.xaxis, xmin, xmax); - updateAxis(s.yaxis, ymin, ymax); - } - - $.each(allAxes(), function (_, axis) { - if (axis.datamin == topSentry) - axis.datamin = null; - if (axis.datamax == bottomSentry) - axis.datamax = null; - }); - } - - function setupCanvases() { - // Make sure the placeholder is clear of everything except canvases - // from a previous plot in this container that we'll try to re-use. - - placeholder.find(".flot-temp-elem").remove(); - - if (placeholder.css("position") == 'static') - placeholder.css("position", "relative"); // for positioning labels and overlay - - surface = new Canvas("flot-base", placeholder); - overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features - - ctx = surface.context; - octx = overlay.context; - - // define which element we're listening for events on - eventHolder = $(overlay.element).unbind(); - - // If we're re-using a plot object, shut down the old one - - var existing = placeholder.data("plot"); - - if (existing) { - existing.shutdown(); - overlay.clear(); - } - - // save in case we get replotted - placeholder.data("plot", plot); - } - - function bindEvents() { - // bind events - if (options.grid.hoverable) { - eventHolder.mousemove(onMouseMove); - - // Use bind, rather than .mouseleave, because we officially - // still support jQuery 1.2.6, which doesn't define a shortcut - // for mouseenter or mouseleave. This was a bug/oversight that - // was fixed somewhere around 1.3.x. We can return to using - // .mouseleave when we drop support for 1.2.6. - - eventHolder.bind("mouseleave", onMouseLeave); - $(document).bind("touchend", onTouch); - } - - if (options.grid.clickable) - eventHolder.click(onClick); - - executeHooks(hooks.bindEvents, [eventHolder]); - } - - function shutdown() { - if (redrawTimeout) - clearTimeout(redrawTimeout); - - eventHolder.unbind("mousemove", onMouseMove); - eventHolder.unbind("mouseleave", onMouseLeave); - eventHolder.unbind("click", onClick); - $(document).unbind("touchend", onTouch); - - executeHooks(hooks.shutdown, [eventHolder]); - } - - function setTransformationHelpers(axis) { - // set helper functions on the axis, assumes plot area - // has been computed already - - function identity(x) { return x; } - - var s, m, t = axis.options.transform || identity, - it = axis.options.inverseTransform; - - // precompute how much the axis is scaling a point - // in canvas space - if (axis.direction == "x") { - s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min)); - m = Math.min(t(axis.max), t(axis.min)); - } - else { - s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min)); - s = -s; - m = Math.max(t(axis.max), t(axis.min)); - } - - // data point to canvas coordinate - if (t == identity) // slight optimization - axis.p2c = function (p) { return (p - m) * s; }; - else - axis.p2c = function (p) { return (t(p) - m) * s; }; - // canvas coordinate to data point - if (!it) - axis.c2p = function (c) { return m + c / s; }; - else - axis.c2p = function (c) { return it(m + c / s); }; - } - - function measureTickLabels(axis) { - - var opts = axis.options, - ticks = axis.ticks || [], - labelWidth = opts.labelWidth || 0, - labelHeight = opts.labelHeight || 0, - maxWidth = labelWidth || (axis.direction == "x" ? Math.floor(surface.width / (ticks.length || 1)) : null), - legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", - layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, - font = opts.font || "flot-tick-label tickLabel"; - - for (var i = 0; i < ticks.length; ++i) { - - var t = ticks[i]; - - if (!t.label) - continue; - - var info = surface.getTextInfo(layer, t.label, font, null, maxWidth); - - /// Grafana fix, add +1 to label width - labelWidth = Math.max(labelWidth, info.width + 1); - labelHeight = Math.max(labelHeight, info.height); - } - - axis.labelWidth = opts.labelWidth || labelWidth; - axis.labelHeight = opts.labelHeight || labelHeight; - } - - function allocateAxisBoxFirstPhase(axis) { - // find the bounding box of the axis by looking at label - // widths/heights and ticks, make room by diminishing the - // plotOffset; this first phase only looks at one - // dimension per axis, the other dimension depends on the - // other axes so will have to wait - - var lw = axis.labelWidth, - lh = axis.labelHeight, - pos = axis.options.position, - isXAxis = axis.direction === "x", - tickLength = axis.options.tickLength, - axisMargin = options.grid.axisMargin, - padding = options.grid.labelMargin, - eventSectionPadding = options.grid.eventSectionHeight, - innermost = true, - outermost = true, - first = true, - found = false; - - // Determine the axis's position in its direction and on its side - - $.each(isXAxis ? xaxes : yaxes, function(i, a) { - if (a && (a.show || a.reserveSpace)) { - if (a === axis) { - found = true; - } else if (a.options.position === pos) { - if (found) { - outermost = false; - } else { - innermost = false; - } - } - if (!found) { - first = false; - } - } - }); - - // The outermost axis on each side has no margin - - if (outermost) { - axisMargin = 0; - } - - // The ticks for the first axis in each direction stretch across - - if (tickLength == null) { - tickLength = first ? "full" : 5; - } - - if (!isNaN(+tickLength)) - padding += +tickLength; - - if (isXAxis) { - // Add space for event section - lh += padding; - lh += eventSectionPadding; - - if (pos == "bottom") { - plotOffset.bottom += lh + axisMargin; - axis.box = { top: surface.height - plotOffset.bottom, height: lh }; - } - else { - axis.box = { top: plotOffset.top + axisMargin, height: lh }; - plotOffset.top += lh + axisMargin; - } - } - else { - lw += padding; - - if (pos == "left") { - axis.box = { left: plotOffset.left + axisMargin, width: lw }; - plotOffset.left += lw + axisMargin; - } - else { - plotOffset.right += lw + axisMargin; - axis.box = { left: surface.width - plotOffset.right, width: lw }; - } - } - - // save for future reference - axis.position = pos; - axis.tickLength = tickLength; - axis.box.padding = padding; - axis.box.eventSectionPadding = eventSectionPadding; - axis.innermost = innermost; - } - - function allocateAxisBoxSecondPhase(axis) { - // now that all axis boxes have been placed in one - // dimension, we can set the remaining dimension coordinates - if (axis.direction == "x") { - axis.box.left = plotOffset.left - axis.labelWidth / 2; - axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth; - } - else { - axis.box.top = plotOffset.top - axis.labelHeight / 2; - axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight; - } - } - - function adjustLayoutForThingsStickingOut() { - // possibly adjust plot offset to ensure everything stays - // inside the canvas and isn't clipped off - - var minMargin = options.grid.minBorderMargin, - axis, i; - - // check stuff from the plot (FIXME: this should just read - // a value from the series, otherwise it's impossible to - // customize) - if (minMargin == null) { - minMargin = 0; - for (i = 0; i < series.length; ++i) - minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth/2)); - } - - var margins = { - left: minMargin, - right: minMargin, - top: minMargin, - bottom: minMargin - }; - - // check axis labels, note we don't check the actual - // labels but instead use the overall width/height to not - // jump as much around with replots - $.each(allAxes(), function (_, axis) { - if (axis.reserveSpace && axis.ticks && axis.ticks.length) { - if (axis.direction === "x") { - margins.left = Math.max(margins.left, axis.labelWidth / 2); - margins.right = Math.max(margins.right, axis.labelWidth / 2); - } else { - margins.bottom = Math.max(margins.bottom, axis.labelHeight / 2); - margins.top = Math.max(margins.top, axis.labelHeight / 2); - } - } - }); - - plotOffset.left = Math.ceil(Math.max(margins.left, plotOffset.left)); - plotOffset.right = Math.ceil(Math.max(margins.right, plotOffset.right)); - plotOffset.top = Math.ceil(Math.max(margins.top, plotOffset.top)); - plotOffset.bottom = Math.ceil(Math.max(margins.bottom, plotOffset.bottom)); - } - - function setupGrid() { - var i, axes = allAxes(), showGrid = options.grid.show; - - // Initialize the plot's offset from the edge of the canvas - - for (var a in plotOffset) { - var margin = options.grid.margin || 0; - plotOffset[a] = typeof margin == "number" ? margin : margin[a] || 0; - } - - executeHooks(hooks.processOffset, [plotOffset]); - - // If the grid is visible, add its border width to the offset - - for (var a in plotOffset) { - if(typeof(options.grid.borderWidth) == "object") { - plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0; - } - else { - plotOffset[a] += showGrid ? options.grid.borderWidth : 0; - } - } - - $.each(axes, function (_, axis) { - var axisOpts = axis.options; - axis.show = axisOpts.show == null ? axis.used : axisOpts.show; - axis.reserveSpace = axisOpts.reserveSpace == null ? axis.show : axisOpts.reserveSpace; - setRange(axis); - }); - - executeHooks(hooks.processRange, []); - - if (showGrid) { - - var allocatedAxes = $.grep(axes, function (axis) { - return axis.show || axis.reserveSpace; - }); - - var snaped = false; - for (var i = 0; i < 2; i++) { - $.each(allocatedAxes, function (_, axis) { - // make the ticks - setupTickGeneration(axis); - setTicks(axis); - snaped = snapRangeToTicks(axis, axis.ticks) || snaped; - // find labelWidth/Height for axis - measureTickLabels(axis); - }); - - if (snaped && hooks.processRange.length > 0) { - executeHooks(hooks.processRange, []); - snaped = false; - } else { - break; - } - } - - // with all dimensions calculated, we can compute the - // axis bounding boxes, start from the outside - // (reverse order) - for (i = allocatedAxes.length - 1; i >= 0; --i) - allocateAxisBoxFirstPhase(allocatedAxes[i]); - - // make sure we've got enough space for things that - // might stick out - adjustLayoutForThingsStickingOut(); - - $.each(allocatedAxes, function (_, axis) { - allocateAxisBoxSecondPhase(axis); - }); - } - - - plotWidth = surface.width - plotOffset.left - plotOffset.right; - plotHeight = surface.height - plotOffset.bottom - plotOffset.top; - - // now we got the proper plot dimensions, we can compute the scaling - $.each(axes, function (_, axis) { - setTransformationHelpers(axis); - }); - - if (showGrid) { - drawAxisLabels(); - } - - insertLegend(); - } - - function setRange(axis) { - var opts = axis.options, - min = +(opts.min != null ? opts.min : axis.datamin), - max = +(opts.max != null ? opts.max : axis.datamax), - delta = max - min; - - if (delta == 0.0) { - // Grafana fix: wide Y min and max using increased wideFactor - // when all series values are the same - var wideFactor = 0.25; - var widen = Math.abs(max == 0 ? 1 : max * wideFactor); - - if (opts.min == null) { - min -= widen; - } - // always widen max if we couldn't widen min to ensure we - // don't fall into min == max which doesn't work - if (opts.max == null || opts.min != null) { - max += widen; - } - } - else { - // consider autoscaling - var margin = opts.autoscaleMargin; - if (margin != null) { - if (opts.min == null) { - min -= delta * margin; - // make sure we don't go below zero if all values - // are positive - if (min < 0 && axis.datamin != null && axis.datamin >= 0) - min = 0; - } - if (opts.max == null) { - max += delta * margin; - if (max > 0 && axis.datamax != null && axis.datamax <= 0) - max = 0; - } - } - } - axis.min = min; - axis.max = max; - } - - // grafana change - function getSignificantDigitCount(n) { - //remove decimal and make positive - n = Math.abs(String(n).replace(".", "")); - if (n == 0) { - return 0; } - // kill the 0s at the end of n - while (n != 0 && n % 10 == 0) { - n /= 10; + if (insertSteps && k > 0 && (!nullify || points[k - ps] != null)) { + // copy the point to make room for a middle point + for (m = 0; m < ps; ++m) + points[k + ps + m] = points[k + m]; + + // middle point has same y + points[k + 1] = points[k - ps + 1] || 0; + + // if series has null values, let's give the last !null value a nice step + if (nullify) + points[k] = p[0]; + + // we've added a point, better reflect that + k += ps; + } + } + } + + // give the hooks a chance to run + for (i = 0; i < series.length; ++i) { + s = series[i]; + points = s.datapoints.points; + ps = s.datapoints.pointsize; + + // grafana + if (s.transform === 'negative-Y') { + for (j = 0; j < points.length; j += ps) { + if (points[j] == null) + continue; + + val = points[j + 1]; + points[j + 1] = -val; + } + } + + executeHooks(hooks.processDatapoints, [s, s.datapoints]); + } + + // second pass: find datamax/datamin for auto-scaling + for (i = 0; i < series.length; ++i) { + s = series[i]; + points = s.datapoints.points; + ps = s.datapoints.pointsize; + format = s.datapoints.format; + + var xmin = topSentry, ymin = topSentry, + xmax = bottomSentry, ymax = bottomSentry; + + for (j = 0; j < points.length; j += ps) { + if (points[j] == null) + continue; + + for (m = 0; m < ps; ++m) { + val = points[j + m]; + f = format[m]; + if (!f || f.autoscale === false || val == fakeInfinity || val == -fakeInfinity) + continue; + + if (f.x) { + if (val < xmin) + xmin = val; + if (val > xmax) + xmax = val; + } + if (f.y) { + if (val < ymin) + ymin = val; + if (val > ymax) + ymax = val; + } + } + } + + if (s.bars.show) { + // make sure we got room for the bar on the dancing floor + var delta; + + switch (s.bars.align) { + case "left": + delta = 0; + break; + case "right": + delta = -s.bars.barWidth; + break; + default: + delta = -s.bars.barWidth / 2; } - // get number of digits - return Math.floor(Math.log(n) / Math.LN10) + 1; - } - - function setupTickGeneration(axis) { - var opts = axis.options; - - // estimate number of ticks - var noTicks; - if (typeof opts.ticks == "number" && opts.ticks > 0) - noTicks = opts.ticks; - else - // heuristic based on the model a*sqrt(x) fitted to - // some data points that seemed reasonable - noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height); - - var delta = (axis.max - axis.min) / noTicks, - dec = -Math.floor(Math.log(delta) / Math.LN10), - maxDec = opts.tickDecimals; - - if (maxDec != null && dec > maxDec) { - dec = maxDec; - } - - var magn = Math.pow(10, -dec), - norm = delta / magn, // norm is between 1.0 and 10.0 - size; - - if (norm < 1.5) { - size = 1; - } else if (norm < 3) { - size = 2; - // special case for 2.5, requires an extra decimal - if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) { - size = 2.5; - ++dec; - } - } else if (norm < 7.5) { - size = 5; - } else { - size = 10; - } - - size *= magn; - - if (opts.minTickSize != null && size < opts.minTickSize) { - size = opts.minTickSize; - } - - axis.delta = delta; - axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec); - axis.tickSize = opts.tickSize || size; - - // Time mode was moved to a plug-in in 0.8, and since so many people use it - // we'll add an especially friendly reminder to make sure they included it. - - if (opts.mode == "time" && !axis.tickGenerator) { - throw new Error("Time mode requires the flot.time plugin."); - } - - // Flot supports base-10 axes; any other mode else is handled by a plug-in, - // like flot.time.js. - - if (!axis.tickGenerator) { - - axis.tickGenerator = function (axis) { - - var ticks = [], - start = floorInBase(axis.min, axis.tickSize), - i = 0, - v = Number.NaN, - prev; - - do { - prev = v; - v = start + i * axis.tickSize; - ticks.push(v); - ++i; - } while (v < axis.max && v != prev); - return ticks; - }; - - axis.tickFormatter = function (value, axis) { - - var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1; - var formatted = "" + Math.round(value * factor) / factor; - - // If tickDecimals was specified, ensure that we have exactly that - // much precision; otherwise default to the value's own precision. - - if (axis.tickDecimals != null) { - var decimal = formatted.indexOf("."); - var precision = decimal == -1 ? 0 : formatted.length - decimal - 1; - if (precision < axis.tickDecimals) { - return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision); - } - } - - return formatted; - }; - } - - if ($.isFunction(opts.tickFormatter)) - axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); }; - - if (opts.alignTicksWithAxis != null) { - var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1]; - if (otherAxis && otherAxis.used && otherAxis != axis) { - // consider snapping min/max to outermost nice ticks - var niceTicks = axis.tickGenerator(axis); - if (niceTicks.length > 0) { - if (opts.min == null) - axis.min = Math.min(axis.min, niceTicks[0]); - if (opts.max == null && niceTicks.length > 1) - axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]); - } - - axis.tickGenerator = function (axis) { - // copy ticks, scaled to this axis - var ticks = [], v, i; - for (i = 0; i < otherAxis.ticks.length; ++i) { - v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min); - v = axis.min + v * (axis.max - axis.min); - ticks.push(v); - } - return ticks; - }; - - // we might need an extra decimal since forced - // ticks don't necessarily fit naturally - if (!axis.mode && opts.tickDecimals == null) { - var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1), - ts = axis.tickGenerator(axis); - - // only proceed if the tick interval rounded - // with an extra decimal doesn't give us a - // zero at end - if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec)))) - axis.tickDecimals = extraDec; - } - } - } - } - - function setTicks(axis) { - var oticks = axis.options.ticks, ticks = []; - if (oticks == null || (typeof oticks == "number" && oticks > 0)) - ticks = axis.tickGenerator(axis); - else if (oticks) { - if ($.isFunction(oticks)) - // generate the ticks - ticks = oticks(axis); - else - ticks = oticks; - } - - // clean up/labelify the supplied ticks, copy them over - var i, v; - axis.ticks = []; - for (i = 0; i < ticks.length; ++i) { - var label = null; - var t = ticks[i]; - if (typeof t == "object") { - v = +t[0]; - if (t.length > 1) - label = t[1]; - } - else - v = +t; - if (label == null) - label = axis.tickFormatter(v, axis); - if (!isNaN(v)) - axis.ticks.push({ v: v, label: label }); - } - } - - function snapRangeToTicks(axis, ticks) { - var changed = false; - if (axis.options.autoscaleMargin && ticks.length > 0) { - // snap to ticks - if (axis.options.min == null) { - axis.min = Math.min(axis.min, ticks[0].v); - changed = true; - } - if (axis.options.max == null && ticks.length > 1) { - axis.max = Math.max(axis.max, ticks[ticks.length - 1].v); - changed = true; - } - } - return changed; - } - - function draw() { - - surface.clear(); - - executeHooks(hooks.drawBackground, [ctx]); - - var grid = options.grid; - - // draw background, if any - if (grid.show && grid.backgroundColor) - drawBackground(); - - if (grid.show && !grid.aboveData) { - drawGrid(); - } - - for (var i = 0; i < series.length; ++i) { - executeHooks(hooks.drawSeries, [ctx, series[i]]); - drawSeries(series[i]); - } - - executeHooks(hooks.draw, [ctx]); - - if (grid.show && grid.aboveData) { - drawGrid(); - } - - surface.render(); - - // A draw implies that either the axes or data have changed, so we - // should probably update the overlay highlights as well. - - triggerRedrawOverlay(); - } - - function extractRange(ranges, coord) { - var axis, from, to, key, axes = allAxes(); - - for (var i = 0; i < axes.length; ++i) { - axis = axes[i]; - if (axis.direction == coord) { - key = coord + axis.n + "axis"; - if (!ranges[key] && axis.n == 1) - key = coord + "axis"; // support x1axis as xaxis - if (ranges[key]) { - from = ranges[key].from; - to = ranges[key].to; - break; - } - } - } - - // backwards-compat stuff - to be removed in future - if (!ranges[key]) { - axis = coord == "x" ? xaxes[0] : yaxes[0]; - from = ranges[coord + "1"]; - to = ranges[coord + "2"]; - } - - // auto-reverse as an added bonus - if (from != null && to != null && from > to) { - var tmp = from; - from = to; - to = tmp; - } - - return { from: from, to: to, axis: axis }; - } - - function drawBackground() { - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)"); - ctx.fillRect(0, 0, plotWidth, plotHeight); - ctx.restore(); - } - - function drawGrid() { - var i, axes, bw, bc; - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - // draw markings - var markings = options.grid.markings; - if (markings) { - if ($.isFunction(markings)) { - axes = plot.getAxes(); - // xmin etc. is backwards compatibility, to be - // removed in the future - axes.xmin = axes.xaxis.min; - axes.xmax = axes.xaxis.max; - axes.ymin = axes.yaxis.min; - axes.ymax = axes.yaxis.max; - - markings = markings(axes); - } - - for (i = 0; i < markings.length; ++i) { - var m = markings[i], - xrange = extractRange(m, "x"), - yrange = extractRange(m, "y"); - - // fill in missing - if (xrange.from == null) - xrange.from = xrange.axis.min; - if (xrange.to == null) - xrange.to = xrange.axis.max; - if (yrange.from == null) - yrange.from = yrange.axis.min; - if (yrange.to == null) - yrange.to = yrange.axis.max; - - // clip - if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max || - yrange.to < yrange.axis.min || yrange.from > yrange.axis.max) - continue; - - xrange.from = Math.max(xrange.from, xrange.axis.min); - xrange.to = Math.min(xrange.to, xrange.axis.max); - yrange.from = Math.max(yrange.from, yrange.axis.min); - yrange.to = Math.min(yrange.to, yrange.axis.max); - - var xequal = xrange.from === xrange.to, - yequal = yrange.from === yrange.to; - - if (xequal && yequal) { - continue; - } - - // then draw - xrange.from = Math.floor(xrange.axis.p2c(xrange.from)); - xrange.to = Math.floor(xrange.axis.p2c(xrange.to)); - yrange.from = Math.floor(yrange.axis.p2c(yrange.from)); - yrange.to = Math.floor(yrange.axis.p2c(yrange.to)); - - if (xequal || yequal) { - var lineWidth = m.lineWidth || options.grid.markingsLineWidth, - subPixel = lineWidth % 2 ? 0.5 : 0; - ctx.beginPath(); - ctx.strokeStyle = m.color || options.grid.markingsColor; - ctx.lineWidth = lineWidth; - if (xequal) { - ctx.moveTo(xrange.to + subPixel, yrange.from); - ctx.lineTo(xrange.to + subPixel, yrange.to); - } else { - ctx.moveTo(xrange.from, yrange.to + subPixel); - ctx.lineTo(xrange.to, yrange.to + subPixel); - } - ctx.stroke(); - } else { - ctx.fillStyle = m.color || options.grid.markingsColor; - ctx.fillRect(xrange.from, yrange.to, - xrange.to - xrange.from, - yrange.from - yrange.to); - } - } - } - - // draw the ticks - axes = allAxes(); - bw = options.grid.borderWidth; - - for (var j = 0; j < axes.length; ++j) { - var axis = axes[j], box = axis.box, - t = axis.tickLength, x, y, xoff, yoff; - if (!axis.show || axis.ticks.length == 0) - continue; - - ctx.lineWidth = 1; - - // find the edges - if (axis.direction == "x") { - x = 0; - if (t == "full") - y = (axis.position == "top" ? 0 : plotHeight); - else - y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0); - } - else { - y = 0; - if (t == "full") - x = (axis.position == "left" ? 0 : plotWidth); - else - x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0); - } - - // draw tick bar - if (!axis.innermost) { - ctx.strokeStyle = axis.options.color; - ctx.beginPath(); - xoff = yoff = 0; - if (axis.direction == "x") - xoff = plotWidth + 1; - else - yoff = plotHeight + 1; - - if (ctx.lineWidth == 1) { - if (axis.direction == "x") { - y = Math.floor(y) + 0.5; - } else { - x = Math.floor(x) + 0.5; - } - } - - ctx.moveTo(x, y); - ctx.lineTo(x + xoff, y + yoff); - ctx.stroke(); - } - - // draw ticks - - ctx.strokeStyle = axis.options.tickColor; - - ctx.beginPath(); - for (i = 0; i < axis.ticks.length; ++i) { - var v = axis.ticks[i].v; - - xoff = yoff = 0; - - if (isNaN(v) || v < axis.min || v > axis.max - // skip those lying on the axes if we got a border - || (t == "full" - && ((typeof bw == "object" && bw[axis.position] > 0) || bw > 0) - && (v == axis.min || v == axis.max))) - continue; - - if (axis.direction == "x") { - x = axis.p2c(v); - yoff = t == "full" ? -plotHeight : t; - - if (axis.position == "top") - yoff = -yoff; - } - else { - y = axis.p2c(v); - xoff = t == "full" ? -plotWidth : t; - - if (axis.position == "left") - xoff = -xoff; - } - - if (ctx.lineWidth == 1) { - if (axis.direction == "x") - x = Math.floor(x) + 0.5; - else - y = Math.floor(y) + 0.5; - } - - ctx.moveTo(x, y); - ctx.lineTo(x + xoff, y + yoff); - } - - ctx.stroke(); - } - - - // draw border - if (bw) { - // If either borderWidth or borderColor is an object, then draw the border - // line by line instead of as one rectangle - bc = options.grid.borderColor; - if(typeof bw == "object" || typeof bc == "object") { - if (typeof bw !== "object") { - bw = {top: bw, right: bw, bottom: bw, left: bw}; - } - if (typeof bc !== "object") { - bc = {top: bc, right: bc, bottom: bc, left: bc}; - } - - if (bw.top > 0) { - ctx.strokeStyle = bc.top; - ctx.lineWidth = bw.top; - ctx.beginPath(); - ctx.moveTo(0 - bw.left, 0 - bw.top/2); - ctx.lineTo(plotWidth, 0 - bw.top/2); - ctx.stroke(); - } - - if (bw.right > 0) { - ctx.strokeStyle = bc.right; - ctx.lineWidth = bw.right; - ctx.beginPath(); - ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top); - ctx.lineTo(plotWidth + bw.right / 2, plotHeight); - ctx.stroke(); - } - - if (bw.bottom > 0) { - ctx.strokeStyle = bc.bottom; - ctx.lineWidth = bw.bottom; - ctx.beginPath(); - ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2); - ctx.lineTo(0, plotHeight + bw.bottom / 2); - ctx.stroke(); - } - - if (bw.left > 0) { - ctx.strokeStyle = bc.left; - ctx.lineWidth = bw.left; - ctx.beginPath(); - ctx.moveTo(0 - bw.left/2, plotHeight + bw.bottom); - ctx.lineTo(0- bw.left/2, 0); - ctx.stroke(); - } - } - else { - ctx.lineWidth = bw; - ctx.strokeStyle = options.grid.borderColor; - ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw); - } - } - - ctx.restore(); - } - - function drawAxisLabels() { - - $.each(allAxes(), function (_, axis) { - var box = axis.box, - legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", - layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, - font = axis.options.font || "flot-tick-label tickLabel", - tick, x, y, halign, valign; - - // Remove text before checking for axis.show and ticks.length; - // otherwise plugins, like flot-tickrotor, that draw their own - // tick labels will end up with both theirs and the defaults. - - surface.removeText(layer); - - if (!axis.show || axis.ticks.length == 0) - return; - - for (var i = 0; i < axis.ticks.length; ++i) { - - tick = axis.ticks[i]; - if (!tick.label || tick.v < axis.min || tick.v > axis.max) - continue; - - if (axis.direction == "x") { - halign = "center"; - x = plotOffset.left + axis.p2c(tick.v); - if (axis.position == "bottom") { - y = box.top + box.padding + box.eventSectionPadding; - } else { - y = box.top + box.height - box.padding; - valign = "bottom"; - } - } else { - valign = "middle"; - y = plotOffset.top + axis.p2c(tick.v); - if (axis.position == "left") { - x = box.left + box.width - box.padding; - halign = "right"; - } else { - x = box.left + box.padding; - } - } - - surface.addText(layer, x, y, tick.label, font, null, null, halign, valign); - } - }); - } - - function drawOrphanedPoints(series) { - /* Filters series data for points with no neighbors before or after - * and plots single 0.5 radius points for them so that they are displayed. - */ - var abandonedPoints = []; - var beforeX = null; - var afterX = null; - var datapoints = series.datapoints; - // find any points with no neighbors before or after - var emptyPoints = []; - for (var j = 0; j < datapoints.pointsize - 2; j++) { - emptyPoints.push(0); - } - for (var i = 0; i < datapoints.points.length; i += datapoints.pointsize) { - var x = datapoints.points[i], y = datapoints.points[i + 1]; - if (i === datapoints.points.length - datapoints.pointsize) { - afterX = null; - } else { - afterX = datapoints.points[i + datapoints.pointsize]; - } - if (x !== null && y !== null && beforeX === null && afterX === null) { - abandonedPoints.push(x); - abandonedPoints.push(y); - abandonedPoints.push.apply(abandonedPoints, emptyPoints); - } - beforeX = x; - - } - var olddatapoints = datapoints.points - datapoints.points = abandonedPoints; - - series.points.radius = series.lines.lineWidth/2; - // plot the orphan points with a radius of lineWidth/2 - drawSeriesPoints(series); - // reset old info - datapoints.points = olddatapoints; - } - - function drawSeries(series) { - if (series.lines.show) { - drawSeriesLines(series); - if (!series.points.show && !series.bars.show) { - // not necessary if user wants points displayed for everything - drawOrphanedPoints(series); - } - } - if (series.bars.show) - drawSeriesBars(series); - if (series.points.show) - drawSeriesPoints(series); - } - - function drawSeriesLines(series) { - function plotLine(datapoints, xoffset, yoffset, axisx, axisy) { - var points = datapoints.points, - ps = datapoints.pointsize, - prevx = null, prevy = null; - - ctx.beginPath(); - for (var i = ps; i < points.length; i += ps) { - var x1 = points[i - ps], y1 = points[i - ps + 1], - x2 = points[i], y2 = points[i + 1]; - - if (x1 == null || x2 == null) - continue; - - // clip with ymin - if (y1 <= y2 && y1 < axisy.min) { - if (y2 < axisy.min) - continue; // line segment is outside - // compute new intersection point - x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; - y1 = axisy.min; - } - else if (y2 <= y1 && y2 < axisy.min) { - if (y1 < axisy.min) - continue; - x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; - y2 = axisy.min; - } - - // clip with ymax - if (y1 >= y2 && y1 > axisy.max) { - if (y2 > axisy.max) - continue; - x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; - y1 = axisy.max; - } - else if (y2 >= y1 && y2 > axisy.max) { - if (y1 > axisy.max) - continue; - x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; - y2 = axisy.max; - } - - // clip with xmin - if (x1 <= x2 && x1 < axisx.min) { - if (x2 < axisx.min) - continue; - y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; - x1 = axisx.min; - } - else if (x2 <= x1 && x2 < axisx.min) { - if (x1 < axisx.min) - continue; - y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; - x2 = axisx.min; - } - - // clip with xmax - if (x1 >= x2 && x1 > axisx.max) { - if (x2 > axisx.max) - continue; - y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; - x1 = axisx.max; - } - else if (x2 >= x1 && x2 > axisx.max) { - if (x1 > axisx.max) - continue; - y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; - x2 = axisx.max; - } - - if (x1 != prevx || y1 != prevy) - ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset); - - prevx = x2; - prevy = y2; - ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset); - } - ctx.stroke(); - } - - function plotLineArea(datapoints, axisx, axisy) { - var points = datapoints.points, - ps = datapoints.pointsize, - bottom = Math.min(Math.max(0, axisy.min), axisy.max), - i = 0, top, areaOpen = false, - ypos = 1, segmentStart = 0, segmentEnd = 0; - - // we process each segment in two turns, first forward - // direction to sketch out top, then once we hit the - // end we go backwards to sketch the bottom - while (true) { - if (ps > 0 && i > points.length + ps) - break; - - i += ps; // ps is negative if going backwards - - var x1 = points[i - ps], - y1 = points[i - ps + ypos], - x2 = points[i], y2 = points[i + ypos]; - - if (areaOpen) { - if (ps > 0 && x1 != null && x2 == null) { - // at turning point - segmentEnd = i; - ps = -ps; - ypos = 2; - continue; - } - - if (ps < 0 && i == segmentStart + ps) { - // done with the reverse sweep - ctx.fill(); - areaOpen = false; - ps = -ps; - ypos = 1; - i = segmentStart = segmentEnd + ps; - continue; - } - } - - if (x1 == null || x2 == null) - continue; - - // clip x values - - // clip with xmin - if (x1 <= x2 && x1 < axisx.min) { - if (x2 < axisx.min) - continue; - y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; - x1 = axisx.min; - } - else if (x2 <= x1 && x2 < axisx.min) { - if (x1 < axisx.min) - continue; - y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; - x2 = axisx.min; - } - - // clip with xmax - if (x1 >= x2 && x1 > axisx.max) { - if (x2 > axisx.max) - continue; - y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; - x1 = axisx.max; - } - else if (x2 >= x1 && x2 > axisx.max) { - if (x1 > axisx.max) - continue; - y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; - x2 = axisx.max; - } - - if (!areaOpen) { - // open area - ctx.beginPath(); - ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom)); - areaOpen = true; - } - - // now first check the case where both is outside - if (y1 >= axisy.max && y2 >= axisy.max) { - ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max)); - ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max)); - continue; - } - else if (y1 <= axisy.min && y2 <= axisy.min) { - ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min)); - ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min)); - continue; - } - - // else it's a bit more complicated, there might - // be a flat maxed out rectangle first, then a - // triangular cutout or reverse; to find these - // keep track of the current x values - var x1old = x1, x2old = x2; - - // clip the y values, without shortcutting, we - // go through all cases in turn - - // clip with ymin - if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) { - x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; - y1 = axisy.min; - } - else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) { - x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; - y2 = axisy.min; - } - - // clip with ymax - if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) { - x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; - y1 = axisy.max; - } - else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) { - x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; - y2 = axisy.max; - } - - // if the x value was changed we got a rectangle - // to fill - if (x1 != x1old) { - ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1)); - // it goes to (x1, y1), but we fill that below - } - - // fill triangular section, this sometimes result - // in redundant points if (x1, y1) hasn't changed - // from previous line to, but we just ignore that - ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1)); - ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); - - // fill the other rectangle if it's there - if (x2 != x2old) { - ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); - ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2)); - } - } - } - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - ctx.lineJoin = "round"; - - var lw = series.lines.lineWidth, - sw = series.shadowSize; - // FIXME: consider another form of shadow when filling is turned on - if (lw > 0 && sw > 0) { - // draw shadow as a thick and thin line with transparency - ctx.lineWidth = sw; - ctx.strokeStyle = "rgba(0,0,0,0.1)"; - // position shadow at angle from the mid of line - var angle = Math.PI/18; - plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis); - ctx.lineWidth = sw/2; - plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis); - } - - ctx.lineWidth = lw; - ctx.strokeStyle = series.color; - var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight); - if (fillStyle) { - ctx.fillStyle = fillStyle; - plotLineArea(series.datapoints, series.xaxis, series.yaxis); - } - - if (lw > 0) - plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis); - ctx.restore(); - } - - function drawSeriesPoints(series) { - function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) { - var points = datapoints.points, ps = datapoints.pointsize; - - for (var i = 0; i < points.length; i += ps) { - var x = points[i], y = points[i + 1]; - if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) - continue; - - ctx.beginPath(); - x = axisx.p2c(x); - y = axisy.p2c(y) + offset; - if (symbol == "circle") - ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false); - else - symbol(ctx, x, y, radius, shadow); - ctx.closePath(); - - if (fillStyle) { - ctx.fillStyle = fillStyle; - ctx.fill(); - } - ctx.stroke(); - } - } - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - var lw = series.points.lineWidth, - sw = series.shadowSize, - radius = series.points.radius, - symbol = series.points.symbol; - - // If the user sets the line width to 0, we change it to a very - // small value. A line width of 0 seems to force the default of 1. - // Doing the conditional here allows the shadow setting to still be - // optional even with a lineWidth of 0. - - if( lw == 0 ) - lw = 0.0001; - - if (lw > 0 && sw > 0) { - // draw shadow in two steps - var w = sw / 2; - ctx.lineWidth = w; - ctx.strokeStyle = "rgba(0,0,0,0.1)"; - plotPoints(series.datapoints, radius, null, w + w/2, true, - series.xaxis, series.yaxis, symbol); - - ctx.strokeStyle = "rgba(0,0,0,0.2)"; - plotPoints(series.datapoints, radius, null, w/2, true, - series.xaxis, series.yaxis, symbol); - } - - ctx.lineWidth = lw; - ctx.strokeStyle = series.color; - plotPoints(series.datapoints, radius, - getFillStyle(series.points, series.color), 0, false, - series.xaxis, series.yaxis, symbol); - ctx.restore(); - } - - function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) { - var left, right, bottom, top, - drawLeft, drawRight, drawTop, drawBottom, - tmp; - - // in horizontal mode, we start the bar from the left - // instead of from the bottom so it appears to be - // horizontal rather than vertical - if (horizontal) { - drawBottom = drawRight = drawTop = true; - drawLeft = false; - left = b; - right = x; - top = y + barLeft; - bottom = y + barRight; - - // account for negative bars - if (right < left) { - tmp = right; - right = left; - left = tmp; - drawLeft = true; - drawRight = false; - } - } - else { - drawLeft = drawRight = drawTop = true; - drawBottom = false; - left = x + barLeft; - right = x + barRight; - bottom = b; - top = y; - - // account for negative bars - if (top < bottom) { - tmp = top; - top = bottom; - bottom = tmp; - drawBottom = true; - drawTop = false; - } - } - - // clip - if (right < axisx.min || left > axisx.max || - top < axisy.min || bottom > axisy.max) - return; - - if (left < axisx.min) { - left = axisx.min; - drawLeft = false; - } - - if (right > axisx.max) { - right = axisx.max; - drawRight = false; - } - - if (bottom < axisy.min) { - bottom = axisy.min; - drawBottom = false; - } - - if (top > axisy.max) { - top = axisy.max; - drawTop = false; - } - - left = axisx.p2c(left); - bottom = axisy.p2c(bottom); - right = axisx.p2c(right); - top = axisy.p2c(top); - - // fill the bar - if (fillStyleCallback) { - c.fillStyle = fillStyleCallback(bottom, top); - c.fillRect(left, top, right - left, bottom - top) - } - - // draw outline - if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) { - c.beginPath(); - - // FIXME: inline moveTo is buggy with excanvas - c.moveTo(left, bottom); - if (drawLeft) - c.lineTo(left, top); - else - c.moveTo(left, top); - if (drawTop) - c.lineTo(right, top); - else - c.moveTo(right, top); - if (drawRight) - c.lineTo(right, bottom); - else - c.moveTo(right, bottom); - if (drawBottom) - c.lineTo(left, bottom); - else - c.moveTo(left, bottom); - c.stroke(); - } - } - - function drawSeriesBars(series) { - function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) { - var points = datapoints.points, ps = datapoints.pointsize; - - for (var i = 0; i < points.length; i += ps) { - if (points[i] == null) - continue; - drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth); - } - } - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - // FIXME: figure out a way to add shadows (for instance along the right edge) - ctx.lineWidth = series.bars.lineWidth; - ctx.strokeStyle = series.color; - - var barLeft; - - switch (series.bars.align) { - case "left": - barLeft = 0; - break; - case "right": - barLeft = -series.bars.barWidth; - break; - default: - barLeft = -series.bars.barWidth / 2; - } - - var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null; - plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis); - ctx.restore(); - } - - function getFillStyle(filloptions, seriesColor, bottom, top) { - var fill = filloptions.fill; - if (!fill) - return null; - - if (filloptions.fillColor) - return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor); - - var c = $.color.parse(seriesColor); - c.a = typeof fill == "number" ? fill : 0.4; - c.normalize(); - return c.toString(); - } - - function insertLegend() { - - if (options.legend.container != null) { - $(options.legend.container).html(""); - } else { - placeholder.find(".legend").remove(); - } - - if (!options.legend.show) { - return; - } - - var fragments = [], entries = [], rowStarted = false, - lf = options.legend.labelFormatter, s, label; - - // Build a list of legend entries, with each having a label and a color - - for (var i = 0; i < series.length; ++i) { - s = series[i]; - if (s.label) { - label = lf ? lf(s.label, s) : s.label; - if (label) { - entries.push({ - label: label, - color: s.color - }); - } - } - } - - // Sort the legend using either the default or a custom comparator - - if (options.legend.sorted) { - if ($.isFunction(options.legend.sorted)) { - entries.sort(options.legend.sorted); - } else if (options.legend.sorted == "reverse") { - entries.reverse(); - } else { - var ascending = options.legend.sorted != "descending"; - entries.sort(function(a, b) { - return a.label == b.label ? 0 : ( - (a.label < b.label) != ascending ? 1 : -1 // Logical XOR - ); - }); - } - } - - // Generate markup for the list of entries, in their final order - - for (var i = 0; i < entries.length; ++i) { - - var entry = entries[i]; - - if (i % options.legend.noColumns == 0) { - if (rowStarted) - fragments.push(''); - fragments.push(''); - rowStarted = true; - } - - fragments.push( - '
    ' + - '' + entry.label + '' - ); - } - - if (rowStarted) - fragments.push(''); - - if (fragments.length == 0) - return; - - var table = '' + fragments.join("") + '
    '; - if (options.legend.container != null) - $(options.legend.container).html(table); - else { - var pos = "", - p = options.legend.position, - m = options.legend.margin; - if (m[0] == null) - m = [m, m]; - if (p.charAt(0) == "n") - pos += 'top:' + (m[1] + plotOffset.top) + 'px;'; - else if (p.charAt(0) == "s") - pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;'; - if (p.charAt(1) == "e") - pos += 'right:' + (m[0] + plotOffset.right) + 'px;'; - else if (p.charAt(1) == "w") - pos += 'left:' + (m[0] + plotOffset.left) + 'px;'; - var legend = $('
    ' + table.replace('style="', 'style="position:absolute;' + pos +';') + '
    ').appendTo(placeholder); - if (options.legend.backgroundOpacity != 0.0) { - // put in the transparent background - // separately to avoid blended labels and - // label boxes - var c = options.legend.backgroundColor; - if (c == null) { - c = options.grid.backgroundColor; - if (c && typeof c == "string") - c = $.color.parse(c); - else - c = $.color.extract(legend, 'background-color'); - c.a = 1; - c = c.toString(); - } - var div = legend.children(); - $('
    ').prependTo(legend).css('opacity', options.legend.backgroundOpacity); - } - } - } - - - // interactive features - - var highlights = [], - redrawTimeout = null; - - // returns the data item the mouse is over, or null if none is found - function findNearbyItem(mouseX, mouseY, seriesFilter) { - var maxDistance = options.grid.mouseActiveRadius, - smallestDistance = maxDistance * maxDistance + 1, - item = null, foundPoint = false, i, j, ps; - - for (i = series.length - 1; i >= 0; --i) { - if (!seriesFilter(series[i])) - continue; - - var s = series[i], - axisx = s.xaxis, - axisy = s.yaxis, - points = s.datapoints.points, - mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster - my = axisy.c2p(mouseY), - maxx = maxDistance / axisx.scale, - maxy = maxDistance / axisy.scale; - - ps = s.datapoints.pointsize; - // with inverse transforms, we can't use the maxx/maxy - // optimization, sadly - if (axisx.options.inverseTransform) - maxx = Number.MAX_VALUE; - if (axisy.options.inverseTransform) - maxy = Number.MAX_VALUE; - - if (s.lines.show || s.points.show) { - for (j = 0; j < points.length; j += ps) { - var x = points[j], y = points[j + 1]; - if (x == null) - continue; - - // For points and lines, the cursor must be within a - // certain distance to the data point - if (x - mx > maxx || x - mx < -maxx || - y - my > maxy || y - my < -maxy) - continue; - - // We have to calculate distances in pixels, not in - // data units, because the scales of the axes may be different - var dx = Math.abs(axisx.p2c(x) - mouseX), - dy = Math.abs(axisy.p2c(y) - mouseY), - dist = dx * dx + dy * dy; // we save the sqrt - - // use <= to ensure last point takes precedence - // (last generally means on top of) - if (dist < smallestDistance) { - smallestDistance = dist; - item = [i, j / ps]; - } - } - } - - if (s.bars.show && !item) { // no other point can be nearby - - var barLeft, barRight; - - switch (s.bars.align) { - case "left": - barLeft = 0; - break; - case "right": - barLeft = -s.bars.barWidth; - break; - default: - barLeft = -s.bars.barWidth / 2; - } - - barRight = barLeft + s.bars.barWidth; - - for (j = 0; j < points.length; j += ps) { - var x = points[j], y = points[j + 1], b = points[j + 2]; - if (x == null) - continue; - - // for a bar graph, the cursor must be inside the bar - if (series[i].bars.horizontal ? - (mx <= Math.max(b, x) && mx >= Math.min(b, x) && - my >= y + barLeft && my <= y + barRight) : - (mx >= x + barLeft && mx <= x + barRight && - my >= Math.min(b, y) && my <= Math.max(b, y))) - item = [i, j / ps]; - } - } - } - - if (item) { - i = item[0]; - j = item[1]; - ps = series[i].datapoints.pointsize; - - return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps), - dataIndex: j, - series: series[i], - seriesIndex: i }; - } - - return null; - } - - function onMouseMove(e) { - if (options.grid.hoverable) - triggerClickHoverEvent("plothover", e, - function (s) { return s["hoverable"] != false; }); - } - - function onMouseLeave(e) { - if (options.grid.hoverable) - triggerClickHoverEvent("plothover", e, - function (s) { return false; }); - } - - function onClick(e) { - if (plot.isSelecting) { - return; + if (s.bars.horizontal) { + ymin += delta; + ymax += delta + s.bars.barWidth; + } + else { + xmin += delta; + xmax += delta + s.bars.barWidth; } - - triggerClickHoverEvent("plotclick", e, function (s) { return s["clickable"] != false; }); } - // grafana addon - added to support mobile devices click in plot - function onTouch(e) { - if (!e.cancelable) { - return; - } + updateAxis(s.xaxis, xmin, xmax); + updateAxis(s.yaxis, ymin, ymax); + } - if (!eventHolder.is(e.target) && eventHolder.has(e.target).length === 0) { - triggerClickHoverEvent("plotleave", e, function (s) { false; }); - return; - } - - onMouseMove(mapFromTouchEvent(e)); - e.preventDefault(); - } - - // grafana addon - added to support mobile devices and mapping touch event to click event structure - function mapFromTouchEvent(e) { - if (!e || !e.originalEvent) { - return e; - } - - if (e.pageX && e.pageY) { - return e; - } - - var original = e.originalEvent; - - if (original.changedTouches.length === 0) { - return e; - } - - var touch = original.changedTouches[0]; - e.pageX = touch.pageX; - e.pageY = touch.pageY; - - return e; - } - - // trigger click or hover event (they send the same parameters - // so we share their code) - function triggerClickHoverEvent(eventname, event, seriesFilter) { - var offset = eventHolder.offset(), - canvasX = event.pageX - offset.left - plotOffset.left, - canvasY = event.pageY - offset.top - plotOffset.top, - pos = canvasToAxisCoords({ left: canvasX, top: canvasY }); - - pos.pageX = event.pageX; - pos.pageY = event.pageY; - - // Add ctrlKey and metaKey to event - pos.ctrlKey = event.ctrlKey; - pos.metaKey = event.metaKey; - - var item = findNearbyItem(canvasX, canvasY, seriesFilter); - - if (item) { - // fill in mouse pos for any listeners out there - item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10); - item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10); - } - - if (options.grid.autoHighlight) { - // clear auto-highlights - for (var i = 0; i < highlights.length; ++i) { - var h = highlights[i]; - if (h.auto == eventname && - !(item && h.series == item.series && - h.point[0] == item.datapoint[0] && - h.point[1] == item.datapoint[1])) - unhighlight(h.series, h.point); - } - - if (item) - highlight(item.series, item.datapoint, eventname); - } - - placeholder.trigger(eventname, [ pos, item ]); - } - - function triggerRedrawOverlay() { - var t = options.interaction.redrawOverlayInterval; - if (t == -1) { // skip event queue - drawOverlay(); - return; - } - - if (!redrawTimeout) - redrawTimeout = setTimeout(drawOverlay, t); - } - - function drawOverlay() { - redrawTimeout = null; - - // draw highlights - octx.save(); - overlay.clear(); - octx.translate(plotOffset.left, plotOffset.top); - - var i, hi; - for (i = 0; i < highlights.length; ++i) { - hi = highlights[i]; - - if (hi.series.bars.show) - drawBarHighlight(hi.series, hi.point); - else - drawPointHighlight(hi.series, hi.point); - } - octx.restore(); - - executeHooks(hooks.drawOverlay, [octx]); - } - - function highlight(s, point, auto) { - if (typeof s == "number") - s = series[s]; - - if (typeof point == "number") { - var ps = s.datapoints.pointsize; - point = s.datapoints.points.slice(ps * point, ps * (point + 1)); - } - - var i = indexOfHighlight(s, point); - if (i == -1) { - highlights.push({ series: s, point: point, auto: auto }); - - triggerRedrawOverlay(); - } - else if (!auto) - highlights[i].auto = false; - } - - function unhighlight(s, point) { - if (s == null && point == null) { - highlights = []; - triggerRedrawOverlay(); - return; - } - - if (typeof s == "number") - s = series[s]; - - if (typeof point == "number") { - var ps = s.datapoints.pointsize; - point = s.datapoints.points.slice(ps * point, ps * (point + 1)); - } - - var i = indexOfHighlight(s, point); - if (i != -1) { - highlights.splice(i, 1); - - triggerRedrawOverlay(); - } - } - - function indexOfHighlight(s, p) { - for (var i = 0; i < highlights.length; ++i) { - var h = highlights[i]; - if (h.series == s && h.point[0] == p[0] - && h.point[1] == p[1]) - return i; - } - return -1; - } - - function drawPointHighlight(series, point) { - var x = point[0], y = point[1], - axisx = series.xaxis, axisy = series.yaxis, - highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(); - - if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) - return; - - var pointRadius = series.points.radius + series.points.lineWidth / 2; - octx.lineWidth = pointRadius; - octx.strokeStyle = highlightColor; - var radius = 1.5 * pointRadius; - x = axisx.p2c(x); - y = axisy.p2c(y); - - octx.beginPath(); - if (series.points.symbol == "circle") - octx.arc(x, y, radius, 0, 2 * Math.PI, false); - else - series.points.symbol(octx, x, y, radius, false); - octx.closePath(); - octx.stroke(); - } - - function drawBarHighlight(series, point) { - var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(), - fillStyle = highlightColor, - barLeft; - - switch (series.bars.align) { - case "left": - barLeft = 0; - break; - case "right": - barLeft = -series.bars.barWidth; - break; - default: - barLeft = -series.bars.barWidth / 2; - } - - octx.lineWidth = series.bars.lineWidth; - octx.strokeStyle = highlightColor; - - drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth, - function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth); - } - - function getColorOrGradient(spec, bottom, top, defaultColor) { - if (typeof spec == "string") - return spec; - else { - // assume this is a gradient spec; IE currently only - // supports a simple vertical gradient properly, so that's - // what we support too - var gradient = ctx.createLinearGradient(0, top, 0, bottom); - - for (var i = 0, l = spec.colors.length; i < l; ++i) { - var c = spec.colors[i]; - if (typeof c != "string") { - var co = $.color.parse(defaultColor); - if (c.brightness != null) - co = co.scale('rgb', c.brightness); - if (c.opacity != null) - co.a *= c.opacity; - c = co.toString(); - } - gradient.addColorStop(i / (l - 1), c); - } - - return gradient; - } - } + $.each(allAxes(), function(_, axis) { + if (axis.datamin == topSentry) + axis.datamin = null; + if (axis.datamax == bottomSentry) + axis.datamax = null; + }); } - // Add the plot function to the top level of the jQuery object + function setupCanvases() { + // Make sure the placeholder is clear of everything except canvases + // from a previous plot in this container that we'll try to re-use. - $.plot = function(placeholder, data, options) { - //var t0 = new Date(); - var plot = new Plot($(placeholder), data, options, $.plot.plugins); - //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime())); - return plot; - }; + placeholder.find(".flot-temp-elem").remove(); - $.plot.version = "0.8.3"; + if (placeholder.css("position") == 'static') + placeholder.css("position", "relative"); // for positioning labels and overlay - $.plot.plugins = []; + surface = new Canvas("flot-base", placeholder); + overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features - // Also add the plot function as a chainable property + ctx = surface.context; + octx = overlay.context; - $.fn.plot = function(data, options) { - return this.each(function() { - $.plot(this, data, options); + // define which element we're listening for events on + eventHolder = $(overlay.element).unbind(); + + // If we're re-using a plot object, shut down the old one + + var existing = placeholder.data("plot"); + + if (existing) { + existing.shutdown(); + overlay.clear(); + } + + // save in case we get replotted + placeholder.data("plot", plot); + } + + function bindEvents() { + // bind events + if (options.grid.hoverable) { + eventHolder.mousemove(onMouseMove); + + // Use bind, rather than .mouseleave, because we officially + // still support jQuery 1.2.6, which doesn't define a shortcut + // for mouseenter or mouseleave. This was a bug/oversight that + // was fixed somewhere around 1.3.x. We can return to using + // .mouseleave when we drop support for 1.2.6. + + eventHolder.bind("mouseleave", onMouseLeave); + $(document).bind("touchend", onTouch); + } + + if (options.grid.clickable) + eventHolder.click(onClick); + + executeHooks(hooks.bindEvents, [eventHolder]); + } + + function shutdown() { + if (redrawTimeout) + clearTimeout(redrawTimeout); + + eventHolder.unbind("mousemove", onMouseMove); + eventHolder.unbind("mouseleave", onMouseLeave); + eventHolder.unbind("click", onClick); + $(document).unbind("touchend", onTouch); + + executeHooks(hooks.shutdown, [eventHolder]); + } + + function setTransformationHelpers(axis) { + // set helper functions on the axis, assumes plot area + // has been computed already + + function identity(x) { return x; } + + var s, m, t = axis.options.transform || identity, + it = axis.options.inverseTransform; + + // precompute how much the axis is scaling a point + // in canvas space + if (axis.direction == "x") { + s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min)); + m = Math.min(t(axis.max), t(axis.min)); + } + else { + s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min)); + s = -s; + m = Math.max(t(axis.max), t(axis.min)); + } + + // data point to canvas coordinate + if (t == identity) // slight optimization + axis.p2c = function(p) { return (p - m) * s; }; + else + axis.p2c = function(p) { return (t(p) - m) * s; }; + // canvas coordinate to data point + if (!it) + axis.c2p = function(c) { return m + c / s; }; + else + axis.c2p = function(c) { return it(m + c / s); }; + } + + function measureTickLabels(axis) { + + var opts = axis.options, + ticks = axis.ticks || [], + labelWidth = opts.labelWidth || 0, + labelHeight = opts.labelHeight || 0, + maxWidth = labelWidth || (axis.direction == "x" ? Math.floor(surface.width / (ticks.length || 1)) : null), + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, + font = opts.font || "flot-tick-label tickLabel"; + + for (var i = 0; i < ticks.length; ++i) { + + var t = ticks[i]; + + if (!t.label) + continue; + + var info = surface.getTextInfo(layer, t.label, font, null, maxWidth); + + /// Grafana fix, add +1 to label width + labelWidth = Math.max(labelWidth, info.width + 1); + labelHeight = Math.max(labelHeight, info.height); + } + + axis.labelWidth = opts.labelWidth || labelWidth; + axis.labelHeight = opts.labelHeight || labelHeight; + } + + function allocateAxisBoxFirstPhase(axis) { + // find the bounding box of the axis by looking at label + // widths/heights and ticks, make room by diminishing the + // plotOffset; this first phase only looks at one + // dimension per axis, the other dimension depends on the + // other axes so will have to wait + + var lw = axis.labelWidth, + lh = axis.labelHeight, + pos = axis.options.position, + isXAxis = axis.direction === "x", + tickLength = axis.options.tickLength, + axisMargin = options.grid.axisMargin, + padding = options.grid.labelMargin, + eventSectionPadding = options.grid.eventSectionHeight, + innermost = true, + outermost = true, + first = true, + found = false; + + // Determine the axis's position in its direction and on its side + + $.each(isXAxis ? xaxes : yaxes, function(i, a) { + if (a && (a.show || a.reserveSpace)) { + if (a === axis) { + found = true; + } else if (a.options.position === pos) { + if (found) { + outermost = false; + } else { + innermost = false; + } + } + if (!found) { + first = false; + } + } + }); + + // The outermost axis on each side has no margin + + if (outermost) { + axisMargin = 0; + } + + // The ticks for the first axis in each direction stretch across + + if (tickLength == null) { + tickLength = first ? "full" : 5; + } + + if (!isNaN(+tickLength)) + padding += +tickLength; + + if (isXAxis) { + // Add space for event section + lh += padding; + lh += eventSectionPadding; + + if (pos == "bottom") { + plotOffset.bottom += lh + axisMargin; + axis.box = { top: surface.height - plotOffset.bottom, height: lh }; + } + else { + axis.box = { top: plotOffset.top + axisMargin, height: lh }; + plotOffset.top += lh + axisMargin; + } + } + else { + lw += padding; + + if (pos == "left") { + axis.box = { left: plotOffset.left + axisMargin, width: lw }; + plotOffset.left += lw + axisMargin; + } + else { + plotOffset.right += lw + axisMargin; + axis.box = { left: surface.width - plotOffset.right, width: lw }; + } + } + + // save for future reference + axis.position = pos; + axis.tickLength = tickLength; + axis.box.padding = padding; + axis.box.eventSectionPadding = eventSectionPadding; + axis.innermost = innermost; + } + + function allocateAxisBoxSecondPhase(axis) { + // now that all axis boxes have been placed in one + // dimension, we can set the remaining dimension coordinates + if (axis.direction == "x") { + axis.box.left = plotOffset.left - axis.labelWidth / 2; + axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth; + } + else { + axis.box.top = plotOffset.top - axis.labelHeight / 2; + axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight; + } + } + + function adjustLayoutForThingsStickingOut() { + // possibly adjust plot offset to ensure everything stays + // inside the canvas and isn't clipped off + + var minMargin = options.grid.minBorderMargin, + axis, i; + + // check stuff from the plot (FIXME: this should just read + // a value from the series, otherwise it's impossible to + // customize) + if (minMargin == null) { + minMargin = 0; + for (i = 0; i < series.length; ++i) + minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth / 2)); + } + + var margins = { + left: minMargin, + right: minMargin, + top: minMargin, + bottom: minMargin + }; + + // check axis labels, note we don't check the actual + // labels but instead use the overall width/height to not + // jump as much around with replots + $.each(allAxes(), function(_, axis) { + if (axis.reserveSpace && axis.ticks && axis.ticks.length) { + if (axis.direction === "x") { + margins.left = Math.max(margins.left, axis.labelWidth / 2); + margins.right = Math.max(margins.right, axis.labelWidth / 2); + } else { + margins.bottom = Math.max(margins.bottom, axis.labelHeight / 2); + margins.top = Math.max(margins.top, axis.labelHeight / 2); + } + } + }); + + plotOffset.left = Math.ceil(Math.max(margins.left, plotOffset.left)); + plotOffset.right = Math.ceil(Math.max(margins.right, plotOffset.right)); + plotOffset.top = Math.ceil(Math.max(margins.top, plotOffset.top)); + plotOffset.bottom = Math.ceil(Math.max(margins.bottom, plotOffset.bottom)); + } + + function setupGrid() { + var i, axes = allAxes(), showGrid = options.grid.show; + + // Initialize the plot's offset from the edge of the canvas + + for (var a in plotOffset) { + var margin = options.grid.margin || 0; + plotOffset[a] = typeof margin == "number" ? margin : margin[a] || 0; + } + + executeHooks(hooks.processOffset, [plotOffset]); + + // If the grid is visible, add its border width to the offset + + for (var a in plotOffset) { + if (typeof (options.grid.borderWidth) == "object") { + plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0; + } + else { + plotOffset[a] += showGrid ? options.grid.borderWidth : 0; + } + } + + $.each(axes, function(_, axis) { + var axisOpts = axis.options; + axis.show = axisOpts.show == null ? axis.used : axisOpts.show; + axis.reserveSpace = axisOpts.reserveSpace == null ? axis.show : axisOpts.reserveSpace; + setRange(axis); + }); + + executeHooks(hooks.processRange, []); + + if (showGrid) { + + var allocatedAxes = $.grep(axes, function(axis) { + return axis.show || axis.reserveSpace; }); - }; - // round to nearby lower multiple of base - function floorInBase(n, base) { - return base * Math.floor(n / base); + var snaped = false; + for (var i = 0; i < 2; i++) { + $.each(allocatedAxes, function(_, axis) { + // make the ticks + setupTickGeneration(axis); + setTicks(axis); + snaped = snapRangeToTicks(axis, axis.ticks) || snaped; + // find labelWidth/Height for axis + measureTickLabels(axis); + }); + + if (snaped && hooks.processRange.length > 0) { + executeHooks(hooks.processRange, []); + snaped = false; + } else { + break; + } + } + + // with all dimensions calculated, we can compute the + // axis bounding boxes, start from the outside + // (reverse order) + for (i = allocatedAxes.length - 1; i >= 0; --i) + allocateAxisBoxFirstPhase(allocatedAxes[i]); + + // make sure we've got enough space for things that + // might stick out + adjustLayoutForThingsStickingOut(); + + $.each(allocatedAxes, function(_, axis) { + allocateAxisBoxSecondPhase(axis); + }); + } + + + plotWidth = surface.width - plotOffset.left - plotOffset.right; + plotHeight = surface.height - plotOffset.bottom - plotOffset.top; + + // now we got the proper plot dimensions, we can compute the scaling + $.each(axes, function(_, axis) { + setTransformationHelpers(axis); + }); + + if (showGrid) { + drawAxisLabels(); + } + + insertLegend(); } + function setRange(axis) { + var opts = axis.options, + min = +(opts.min != null ? opts.min : axis.datamin), + max = +(opts.max != null ? opts.max : axis.datamax), + delta = max - min; + + if (delta == 0.0) { + // Grafana fix: wide Y min and max using increased wideFactor + // when all series values are the same + var wideFactor = 0.25; + var widen = Math.abs(max == 0 ? 1 : max * wideFactor); + + if (opts.min == null) { + min -= widen; + } + // always widen max if we couldn't widen min to ensure we + // don't fall into min == max which doesn't work + if (opts.max == null || opts.min != null) { + max += widen; + } + } + else { + // consider autoscaling + var margin = opts.autoscaleMargin; + if (margin != null) { + if (opts.min == null) { + min -= delta * margin; + // make sure we don't go below zero if all values + // are positive + if (min < 0 && axis.datamin != null && axis.datamin >= 0) + min = 0; + } + if (opts.max == null) { + max += delta * margin; + if (max > 0 && axis.datamax != null && axis.datamax <= 0) + max = 0; + } + } + } + axis.min = min; + axis.max = max; + } + + // grafana change + function getSignificantDigitCount(n) { + //remove decimal and make positive + n = Math.abs(String(n).replace(".", "")); + if (n == 0) { + return 0; + } + + // kill the 0s at the end of n + while (n != 0 && n % 10 == 0) { + n /= 10; + } + + // get number of digits + return Math.floor(Math.log(n) / Math.LN10) + 1; + } + + function setupTickGeneration(axis) { + var opts = axis.options; + + // estimate number of ticks + var noTicks; + if (typeof opts.ticks == "number" && opts.ticks > 0) + noTicks = opts.ticks; + else + // heuristic based on the model a*sqrt(x) fitted to + // some data points that seemed reasonable + noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height); + + var delta = (axis.max - axis.min) / noTicks, + dec = -Math.floor(Math.log(delta) / Math.LN10), + maxDec = opts.tickDecimals; + + if (maxDec != null && dec > maxDec) { + dec = maxDec; + } + + var magn = Math.pow(10, -dec), + norm = delta / magn, // norm is between 1.0 and 10.0 + size; + + if (norm < 1.5) { + size = 1; + } else if (norm < 3) { + size = 2; + // special case for 2.5, requires an extra decimal + if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) { + size = 2.5; + ++dec; + } + } else if (norm < 7.5) { + size = 5; + } else { + size = 10; + } + + size *= magn; + + if (opts.minTickSize != null && size < opts.minTickSize) { + size = opts.minTickSize; + } + + axis.delta = delta; + axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec); + axis.tickSize = opts.tickSize || size; + + // Time mode was moved to a plug-in in 0.8, and since so many people use it + // we'll add an especially friendly reminder to make sure they included it. + + if (opts.mode == "time" && !axis.tickGenerator) { + throw new Error("Time mode requires the flot.time plugin."); + } + + // Flot supports base-10 axes; any other mode else is handled by a plug-in, + // like flot.time.js. + + if (!axis.tickGenerator) { + + axis.tickGenerator = function(axis) { + + var ticks = [], + start = floorInBase(axis.min, axis.tickSize), + i = 0, + v = Number.NaN, + prev; + + do { + prev = v; + v = start + i * axis.tickSize; + ticks.push(v); + ++i; + } while (v < axis.max && v != prev); + return ticks; + }; + + axis.tickFormatter = function(value, axis) { + + var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1; + var formatted = "" + Math.round(value * factor) / factor; + + // If tickDecimals was specified, ensure that we have exactly that + // much precision; otherwise default to the value's own precision. + + if (axis.tickDecimals != null) { + var decimal = formatted.indexOf("."); + var precision = decimal == -1 ? 0 : formatted.length - decimal - 1; + if (precision < axis.tickDecimals) { + return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision); + } + } + + return formatted; + }; + } + + if ($.isFunction(opts.tickFormatter)) + axis.tickFormatter = function(v, axis) { return "" + opts.tickFormatter(v, axis); }; + + if (opts.alignTicksWithAxis != null) { + var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1]; + if (otherAxis && otherAxis.used && otherAxis != axis) { + // consider snapping min/max to outermost nice ticks + var niceTicks = axis.tickGenerator(axis); + if (niceTicks.length > 0) { + if (opts.min == null) + axis.min = Math.min(axis.min, niceTicks[0]); + if (opts.max == null && niceTicks.length > 1) + axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]); + } + + axis.tickGenerator = function(axis) { + // copy ticks, scaled to this axis + var ticks = [], v, i; + for (i = 0; i < otherAxis.ticks.length; ++i) { + v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min); + v = axis.min + v * (axis.max - axis.min); + ticks.push(v); + } + return ticks; + }; + + // we might need an extra decimal since forced + // ticks don't necessarily fit naturally + if (!axis.mode && opts.tickDecimals == null) { + var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1), + ts = axis.tickGenerator(axis); + + // only proceed if the tick interval rounded + // with an extra decimal doesn't give us a + // zero at end + if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec)))) + axis.tickDecimals = extraDec; + } + } + } + } + + function setTicks(axis) { + var oticks = axis.options.ticks, ticks = []; + if (oticks == null || (typeof oticks == "number" && oticks > 0)) + ticks = axis.tickGenerator(axis); + else if (oticks) { + if ($.isFunction(oticks)) + // generate the ticks + ticks = oticks(axis); + else + ticks = oticks; + } + + // clean up/labelify the supplied ticks, copy them over + var i, v; + axis.ticks = []; + for (i = 0; i < ticks.length; ++i) { + var label = null; + var t = ticks[i]; + if (typeof t == "object") { + v = +t[0]; + if (t.length > 1) + label = t[1]; + } + else + v = +t; + if (label == null) + label = axis.tickFormatter(v, axis); + if (!isNaN(v)) + axis.ticks.push({ v: v, label: label }); + } + } + + function snapRangeToTicks(axis, ticks) { + var changed = false; + if (axis.options.autoscaleMargin && ticks.length > 0) { + // snap to ticks + if (axis.options.min == null) { + axis.min = Math.min(axis.min, ticks[0].v); + changed = true; + } + if (axis.options.max == null && ticks.length > 1) { + axis.max = Math.max(axis.max, ticks[ticks.length - 1].v); + changed = true; + } + } + return changed; + } + + function draw() { + + surface.clear(); + + executeHooks(hooks.drawBackground, [ctx]); + + var grid = options.grid; + + // draw background, if any + if (grid.show && grid.backgroundColor) + drawBackground(); + + if (grid.show && !grid.aboveData) { + drawGrid(); + } + + for (var i = 0; i < series.length; ++i) { + executeHooks(hooks.drawSeries, [ctx, series[i]]); + drawSeries(series[i]); + } + + executeHooks(hooks.draw, [ctx]); + + if (grid.show && grid.aboveData) { + drawGrid(); + } + + surface.render(); + + // A draw implies that either the axes or data have changed, so we + // should probably update the overlay highlights as well. + + triggerRedrawOverlay(); + } + + function extractRange(ranges, coord) { + var axis, from, to, key, axes = allAxes(); + + for (var i = 0; i < axes.length; ++i) { + axis = axes[i]; + if (axis.direction == coord) { + key = coord + axis.n + "axis"; + if (!ranges[key] && axis.n == 1) + key = coord + "axis"; // support x1axis as xaxis + if (ranges[key]) { + from = ranges[key].from; + to = ranges[key].to; + break; + } + } + } + + // backwards-compat stuff - to be removed in future + if (!ranges[key]) { + axis = coord == "x" ? xaxes[0] : yaxes[0]; + from = ranges[coord + "1"]; + to = ranges[coord + "2"]; + } + + // auto-reverse as an added bonus + if (from != null && to != null && from > to) { + var tmp = from; + from = to; + to = tmp; + } + + return { from: from, to: to, axis: axis }; + } + + function drawBackground() { + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)"); + ctx.fillRect(0, 0, plotWidth, plotHeight); + ctx.restore(); + } + + function drawGrid() { + var i, axes, bw, bc; + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + // draw markings + var markings = options.grid.markings; + if (markings) { + if ($.isFunction(markings)) { + axes = plot.getAxes(); + // xmin etc. is backwards compatibility, to be + // removed in the future + axes.xmin = axes.xaxis.min; + axes.xmax = axes.xaxis.max; + axes.ymin = axes.yaxis.min; + axes.ymax = axes.yaxis.max; + + markings = markings(axes); + } + + for (i = 0; i < markings.length; ++i) { + var m = markings[i], + xrange = extractRange(m, "x"), + yrange = extractRange(m, "y"); + + // fill in missing + if (xrange.from == null) + xrange.from = xrange.axis.min; + if (xrange.to == null) + xrange.to = xrange.axis.max; + if (yrange.from == null) + yrange.from = yrange.axis.min; + if (yrange.to == null) + yrange.to = yrange.axis.max; + + // clip + if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max || + yrange.to < yrange.axis.min || yrange.from > yrange.axis.max) + continue; + + xrange.from = Math.max(xrange.from, xrange.axis.min); + xrange.to = Math.min(xrange.to, xrange.axis.max); + yrange.from = Math.max(yrange.from, yrange.axis.min); + yrange.to = Math.min(yrange.to, yrange.axis.max); + + var xequal = xrange.from === xrange.to, + yequal = yrange.from === yrange.to; + + if (xequal && yequal) { + continue; + } + + // then draw + xrange.from = Math.floor(xrange.axis.p2c(xrange.from)); + xrange.to = Math.floor(xrange.axis.p2c(xrange.to)); + yrange.from = Math.floor(yrange.axis.p2c(yrange.from)); + yrange.to = Math.floor(yrange.axis.p2c(yrange.to)); + + if (xequal || yequal) { + var lineWidth = m.lineWidth || options.grid.markingsLineWidth, + subPixel = lineWidth % 2 ? 0.5 : 0; + ctx.beginPath(); + ctx.strokeStyle = m.color || options.grid.markingsColor; + ctx.lineWidth = lineWidth; + if (xequal) { + ctx.moveTo(xrange.to + subPixel, yrange.from); + ctx.lineTo(xrange.to + subPixel, yrange.to); + } else { + ctx.moveTo(xrange.from, yrange.to + subPixel); + ctx.lineTo(xrange.to, yrange.to + subPixel); + } + ctx.stroke(); + } else { + ctx.fillStyle = m.color || options.grid.markingsColor; + ctx.fillRect(xrange.from, yrange.to, + xrange.to - xrange.from, + yrange.from - yrange.to); + } + } + } + + // draw the ticks + axes = allAxes(); + bw = options.grid.borderWidth; + + for (var j = 0; j < axes.length; ++j) { + var axis = axes[j], box = axis.box, + t = axis.tickLength, x, y, xoff, yoff; + if (!axis.show || axis.ticks.length == 0) + continue; + + ctx.lineWidth = 1; + + // find the edges + if (axis.direction == "x") { + x = 0; + if (t == "full") + y = (axis.position == "top" ? 0 : plotHeight); + else + y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0); + } + else { + y = 0; + if (t == "full") + x = (axis.position == "left" ? 0 : plotWidth); + else + x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0); + } + + // draw tick bar + if (!axis.innermost) { + ctx.strokeStyle = axis.options.color; + ctx.beginPath(); + xoff = yoff = 0; + if (axis.direction == "x") + xoff = plotWidth + 1; + else + yoff = plotHeight + 1; + + if (ctx.lineWidth == 1) { + if (axis.direction == "x") { + y = Math.floor(y) + 0.5; + } else { + x = Math.floor(x) + 0.5; + } + } + + ctx.moveTo(x, y); + ctx.lineTo(x + xoff, y + yoff); + ctx.stroke(); + } + + // draw ticks + + ctx.strokeStyle = axis.options.tickColor; + + ctx.beginPath(); + for (i = 0; i < axis.ticks.length; ++i) { + var v = axis.ticks[i].v; + + xoff = yoff = 0; + + if (isNaN(v) || v < axis.min || v > axis.max + // skip those lying on the axes if we got a border + || (t == "full" + && ((typeof bw == "object" && bw[axis.position] > 0) || bw > 0) + && (v == axis.min || v == axis.max))) + continue; + + if (axis.direction == "x") { + x = axis.p2c(v); + yoff = t == "full" ? -plotHeight : t; + + if (axis.position == "top") + yoff = -yoff; + } + else { + y = axis.p2c(v); + xoff = t == "full" ? -plotWidth : t; + + if (axis.position == "left") + xoff = -xoff; + } + + if (ctx.lineWidth == 1) { + if (axis.direction == "x") + x = Math.floor(x) + 0.5; + else + y = Math.floor(y) + 0.5; + } + + ctx.moveTo(x, y); + ctx.lineTo(x + xoff, y + yoff); + } + + ctx.stroke(); + } + + + // draw border + if (bw) { + // If either borderWidth or borderColor is an object, then draw the border + // line by line instead of as one rectangle + bc = options.grid.borderColor; + if (typeof bw == "object" || typeof bc == "object") { + if (typeof bw !== "object") { + bw = { top: bw, right: bw, bottom: bw, left: bw }; + } + if (typeof bc !== "object") { + bc = { top: bc, right: bc, bottom: bc, left: bc }; + } + + if (bw.top > 0) { + ctx.strokeStyle = bc.top; + ctx.lineWidth = bw.top; + ctx.beginPath(); + ctx.moveTo(0 - bw.left, 0 - bw.top / 2); + ctx.lineTo(plotWidth, 0 - bw.top / 2); + ctx.stroke(); + } + + if (bw.right > 0) { + ctx.strokeStyle = bc.right; + ctx.lineWidth = bw.right; + ctx.beginPath(); + ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top); + ctx.lineTo(plotWidth + bw.right / 2, plotHeight); + ctx.stroke(); + } + + if (bw.bottom > 0) { + ctx.strokeStyle = bc.bottom; + ctx.lineWidth = bw.bottom; + ctx.beginPath(); + ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2); + ctx.lineTo(0, plotHeight + bw.bottom / 2); + ctx.stroke(); + } + + if (bw.left > 0) { + ctx.strokeStyle = bc.left; + ctx.lineWidth = bw.left; + ctx.beginPath(); + ctx.moveTo(0 - bw.left / 2, plotHeight + bw.bottom); + ctx.lineTo(0 - bw.left / 2, 0); + ctx.stroke(); + } + } + else { + ctx.lineWidth = bw; + ctx.strokeStyle = options.grid.borderColor; + ctx.strokeRect(-bw / 2, -bw / 2, plotWidth + bw, plotHeight + bw); + } + } + + ctx.restore(); + } + + function drawAxisLabels() { + + $.each(allAxes(), function(_, axis) { + var box = axis.box, + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, + font = axis.options.font || "flot-tick-label tickLabel", + tick, x, y, halign, valign; + + // Remove text before checking for axis.show and ticks.length; + // otherwise plugins, like flot-tickrotor, that draw their own + // tick labels will end up with both theirs and the defaults. + + surface.removeText(layer); + + if (!axis.show || axis.ticks.length == 0) + return; + + for (var i = 0; i < axis.ticks.length; ++i) { + + tick = axis.ticks[i]; + if (!tick.label || tick.v < axis.min || tick.v > axis.max) + continue; + + if (axis.direction == "x") { + halign = "center"; + x = plotOffset.left + axis.p2c(tick.v); + if (axis.position == "bottom") { + y = box.top + box.padding + box.eventSectionPadding; + } else { + y = box.top + box.height - box.padding; + valign = "bottom"; + } + } else { + valign = "middle"; + y = plotOffset.top + axis.p2c(tick.v); + if (axis.position == "left") { + x = box.left + box.width - box.padding; + halign = "right"; + } else { + x = box.left + box.padding; + } + } + + surface.addText(layer, x, y, tick.label, font, null, null, halign, valign); + } + }); + } + + function drawOrphanedPoints(series) { + /* Filters series data for points with no neighbors before or after + * and plots single 0.5 radius points for them so that they are displayed. + */ + var abandonedPoints = []; + var beforeX = null; + var afterX = null; + var datapoints = series.datapoints; + // find any points with no neighbors before or after + var emptyPoints = []; + for (var j = 0; j < datapoints.pointsize - 2; j++) { + emptyPoints.push(0); + } + for (var i = 0; i < datapoints.points.length; i += datapoints.pointsize) { + var x = datapoints.points[i], y = datapoints.points[i + 1]; + if (i === datapoints.points.length - datapoints.pointsize) { + afterX = null; + } else { + afterX = datapoints.points[i + datapoints.pointsize]; + } + if (x !== null && y !== null && beforeX === null && afterX === null) { + abandonedPoints.push(x); + abandonedPoints.push(y); + abandonedPoints.push.apply(abandonedPoints, emptyPoints); + } + beforeX = x; + + } + var olddatapoints = datapoints.points + datapoints.points = abandonedPoints; + + series.points.radius = series.lines.lineWidth / 2; + // plot the orphan points with a radius of lineWidth/2 + drawSeriesPoints(series); + // reset old info + datapoints.points = olddatapoints; + } + + function drawSeries(series) { + if (series.lines.show) { + drawSeriesLines(series); + if (!series.points.show && !series.bars.show) { + // not necessary if user wants points displayed for everything + drawOrphanedPoints(series); + } + } + if (series.bars.show) + drawSeriesBars(series); + if (series.points.show) + drawSeriesPoints(series); + } + + function drawSeriesLines(series) { + function plotLine(datapoints, xoffset, yoffset, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + prevx = null, prevy = null; + + ctx.beginPath(); + for (var i = ps; i < points.length; i += ps) { + var x1 = points[i - ps], y1 = points[i - ps + 1], + x2 = points[i], y2 = points[i + 1]; + + if (x1 == null || x2 == null) + continue; + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min) { + if (y2 < axisy.min) + continue; // line segment is outside + // compute new intersection point + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min) { + if (y1 < axisy.min) + continue; + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max) { + if (y2 > axisy.max) + continue; + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max) { + if (y1 > axisy.max) + continue; + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (x1 != prevx || y1 != prevy) + ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset); + + prevx = x2; + prevy = y2; + ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset); + } + ctx.stroke(); + } + + function plotLineArea(datapoints, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + bottom = Math.min(Math.max(0, axisy.min), axisy.max), + i = 0, top, areaOpen = false, + ypos = 1, segmentStart = 0, segmentEnd = 0; + + // we process each segment in two turns, first forward + // direction to sketch out top, then once we hit the + // end we go backwards to sketch the bottom + while (true) { + if (ps > 0 && i > points.length + ps) + break; + + i += ps; // ps is negative if going backwards + + var x1 = points[i - ps], + y1 = points[i - ps + ypos], + x2 = points[i], y2 = points[i + ypos]; + + if (areaOpen) { + if (ps > 0 && x1 != null && x2 == null) { + // at turning point + segmentEnd = i; + ps = -ps; + ypos = 2; + continue; + } + + if (ps < 0 && i == segmentStart + ps) { + // done with the reverse sweep + ctx.fill(); + areaOpen = false; + ps = -ps; + ypos = 1; + i = segmentStart = segmentEnd + ps; + continue; + } + } + + if (x1 == null || x2 == null) + continue; + + // clip x values + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (!areaOpen) { + // open area + ctx.beginPath(); + ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom)); + areaOpen = true; + } + + // now first check the case where both is outside + if (y1 >= axisy.max && y2 >= axisy.max) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max)); + continue; + } + else if (y1 <= axisy.min && y2 <= axisy.min) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min)); + continue; + } + + // else it's a bit more complicated, there might + // be a flat maxed out rectangle first, then a + // triangular cutout or reverse; to find these + // keep track of the current x values + var x1old = x1, x2old = x2; + + // clip the y values, without shortcutting, we + // go through all cases in turn + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) { + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) { + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) { + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) { + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // if the x value was changed we got a rectangle + // to fill + if (x1 != x1old) { + ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1)); + // it goes to (x1, y1), but we fill that below + } + + // fill triangular section, this sometimes result + // in redundant points if (x1, y1) hasn't changed + // from previous line to, but we just ignore that + ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + + // fill the other rectangle if it's there + if (x2 != x2old) { + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2)); + } + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + ctx.lineJoin = "round"; + + var lw = series.lines.lineWidth, + sw = series.shadowSize; + // FIXME: consider another form of shadow when filling is turned on + if (lw > 0 && sw > 0) { + // draw shadow as a thick and thin line with transparency + ctx.lineWidth = sw; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + // position shadow at angle from the mid of line + var angle = Math.PI / 18; + plotLine(series.datapoints, Math.sin(angle) * (lw / 2 + sw / 2), Math.cos(angle) * (lw / 2 + sw / 2), series.xaxis, series.yaxis); + ctx.lineWidth = sw / 2; + plotLine(series.datapoints, Math.sin(angle) * (lw / 2 + sw / 4), Math.cos(angle) * (lw / 2 + sw / 4), series.xaxis, series.yaxis); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight); + if (fillStyle) { + ctx.fillStyle = fillStyle; + plotLineArea(series.datapoints, series.xaxis, series.yaxis); + } + + if (lw > 0) + plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis); + ctx.restore(); + } + + function drawSeriesPoints(series) { + function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + var x = points[i], y = points[i + 1]; + if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) + continue; + + ctx.beginPath(); + x = axisx.p2c(x); + y = axisy.p2c(y) + offset; + if (symbol == "circle") + ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false); + else + symbol(ctx, x, y, radius, shadow); + ctx.closePath(); + + if (fillStyle) { + ctx.fillStyle = fillStyle; + ctx.fill(); + } + ctx.stroke(); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + var lw = series.points.lineWidth, + sw = series.shadowSize, + radius = series.points.radius, + symbol = series.points.symbol; + + // If the user sets the line width to 0, we change it to a very + // small value. A line width of 0 seems to force the default of 1. + // Doing the conditional here allows the shadow setting to still be + // optional even with a lineWidth of 0. + + if (lw == 0) + lw = 0.0001; + + if (lw > 0 && sw > 0) { + // draw shadow in two steps + var w = sw / 2; + ctx.lineWidth = w; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + plotPoints(series.datapoints, radius, null, w + w / 2, true, + series.xaxis, series.yaxis, symbol); + + ctx.strokeStyle = "rgba(0,0,0,0.2)"; + plotPoints(series.datapoints, radius, null, w / 2, true, + series.xaxis, series.yaxis, symbol); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + plotPoints(series.datapoints, radius, + getFillStyle(series.points, series.color), 0, false, + series.xaxis, series.yaxis, symbol); + ctx.restore(); + } + + function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) { + var left, right, bottom, top, + drawLeft, drawRight, drawTop, drawBottom, + tmp; + + // in horizontal mode, we start the bar from the left + // instead of from the bottom so it appears to be + // horizontal rather than vertical + if (horizontal) { + drawBottom = drawRight = drawTop = true; + drawLeft = false; + left = b; + right = x; + top = y + barLeft; + bottom = y + barRight; + + // account for negative bars + if (right < left) { + tmp = right; + right = left; + left = tmp; + drawLeft = true; + drawRight = false; + } + } + else { + drawLeft = drawRight = drawTop = true; + drawBottom = false; + left = x + barLeft; + right = x + barRight; + bottom = b; + top = y; + + // account for negative bars + if (top < bottom) { + tmp = top; + top = bottom; + bottom = tmp; + drawBottom = true; + drawTop = false; + } + } + + // clip + if (right < axisx.min || left > axisx.max || + top < axisy.min || bottom > axisy.max) + return; + + if (left < axisx.min) { + left = axisx.min; + drawLeft = false; + } + + if (right > axisx.max) { + right = axisx.max; + drawRight = false; + } + + if (bottom < axisy.min) { + bottom = axisy.min; + drawBottom = false; + } + + if (top > axisy.max) { + top = axisy.max; + drawTop = false; + } + + left = axisx.p2c(left); + bottom = axisy.p2c(bottom); + right = axisx.p2c(right); + top = axisy.p2c(top); + + // fill the bar + if (fillStyleCallback) { + c.fillStyle = fillStyleCallback(bottom, top); + c.fillRect(left, top, right - left, bottom - top) + } + + // draw outline + if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) { + c.beginPath(); + + // FIXME: inline moveTo is buggy with excanvas + c.moveTo(left, bottom); + if (drawLeft) + c.lineTo(left, top); + else + c.moveTo(left, top); + if (drawTop) + c.lineTo(right, top); + else + c.moveTo(right, top); + if (drawRight) + c.lineTo(right, bottom); + else + c.moveTo(right, bottom); + if (drawBottom) + c.lineTo(left, bottom); + else + c.moveTo(left, bottom); + c.stroke(); + } + } + + function drawSeriesBars(series) { + function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + if (points[i] == null) + continue; + drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + // FIXME: figure out a way to add shadows (for instance along the right edge) + ctx.lineWidth = series.bars.lineWidth; + ctx.strokeStyle = series.color; + + var barLeft; + + switch (series.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -series.bars.barWidth; + break; + default: + barLeft = -series.bars.barWidth / 2; + } + + var fillStyleCallback = series.bars.fill ? function(bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null; + plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis); + ctx.restore(); + } + + function getFillStyle(filloptions, seriesColor, bottom, top) { + var fill = filloptions.fill; + if (!fill) + return null; + + if (filloptions.fillColor) + return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor); + + var c = $.color.parse(seriesColor); + c.a = typeof fill == "number" ? fill : 0.4; + c.normalize(); + return c.toString(); + } + + function insertLegend() { + + if (options.legend.container != null) { + $.find(options.legend.container).html(""); + } else { + placeholder.find(".legend").remove(); + } + + if (!options.legend.show) { + return; + } + + var fragments = [], entries = [], rowStarted = false, + lf = options.legend.labelFormatter, s, label; + + // Build a list of legend entries, with each having a label and a color + + for (var i = 0; i < series.length; ++i) { + s = series[i]; + if (s.label) { + label = lf ? lf(s.label, s) : s.label; + if (label) { + entries.push({ + label: label, + color: s.color + }); + } + } + } + + // Sort the legend using either the default or a custom comparator + + if (options.legend.sorted) { + if ($.isFunction(options.legend.sorted)) { + entries.sort(options.legend.sorted); + } else if (options.legend.sorted == "reverse") { + entries.reverse(); + } else { + var ascending = options.legend.sorted != "descending"; + entries.sort(function(a, b) { + return a.label == b.label ? 0 : ( + (a.label < b.label) != ascending ? 1 : -1 // Logical XOR + ); + }); + } + } + + // Generate markup for the list of entries, in their final order + + for (var i = 0; i < entries.length; ++i) { + + var entry = entries[i]; + + if (i % options.legend.noColumns == 0) { + if (rowStarted) + fragments.push(''); + fragments.push(''); + rowStarted = true; + } + + fragments.push( + '
    ' + + '' + entry.label + '' + ); + } + + if (rowStarted) + fragments.push(''); + + if (fragments.length == 0) + return; + + var table = '' + fragments.join("") + '
    '; + if (options.legend.container != null) + $(options.legend.container).html(table); + else { + var pos = "", + p = options.legend.position, + m = options.legend.margin; + if (m[0] == null) + m = [m, m]; + if (p.charAt(0) == "n") + pos += 'top:' + (m[1] + plotOffset.top) + 'px;'; + else if (p.charAt(0) == "s") + pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;'; + if (p.charAt(1) == "e") + pos += 'right:' + (m[0] + plotOffset.right) + 'px;'; + else if (p.charAt(1) == "w") + pos += 'left:' + (m[0] + plotOffset.left) + 'px;'; + var legend = $('
    ' + table.replace('style="', 'style="position:absolute;' + pos + ';') + '
    ').appendTo(placeholder); + if (options.legend.backgroundOpacity != 0.0) { + // put in the transparent background + // separately to avoid blended labels and + // label boxes + var c = options.legend.backgroundColor; + if (c == null) { + c = options.grid.backgroundColor; + if (c && typeof c == "string") + c = $.color.parse(c); + else + c = $.color.extract(legend, 'background-color'); + c.a = 1; + c = c.toString(); + } + var div = legend.children(); + $('
    ').prependTo(legend).css('opacity', options.legend.backgroundOpacity); + } + } + } + + + // interactive features + + var highlights = [], + redrawTimeout = null; + + // returns the data item the mouse is over, or null if none is found + function findNearbyItem(mouseX, mouseY, seriesFilter) { + var maxDistance = options.grid.mouseActiveRadius, + smallestDistance = maxDistance * maxDistance + 1, + item = null, foundPoint = false, i, j, ps; + + for (i = series.length - 1; i >= 0; --i) { + if (!seriesFilter(series[i])) + continue; + + var s = series[i], + axisx = s.xaxis, + axisy = s.yaxis, + points = s.datapoints.points, + mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster + my = axisy.c2p(mouseY), + maxx = maxDistance / axisx.scale, + maxy = maxDistance / axisy.scale; + + ps = s.datapoints.pointsize; + // with inverse transforms, we can't use the maxx/maxy + // optimization, sadly + if (axisx.options.inverseTransform) + maxx = Number.MAX_VALUE; + if (axisy.options.inverseTransform) + maxy = Number.MAX_VALUE; + + if (s.lines.show || s.points.show) { + for (j = 0; j < points.length; j += ps) { + var x = points[j], y = points[j + 1]; + if (x == null) + continue; + + // For points and lines, the cursor must be within a + // certain distance to the data point + if (x - mx > maxx || x - mx < -maxx || + y - my > maxy || y - my < -maxy) + continue; + + // We have to calculate distances in pixels, not in + // data units, because the scales of the axes may be different + var dx = Math.abs(axisx.p2c(x) - mouseX), + dy = Math.abs(axisy.p2c(y) - mouseY), + dist = dx * dx + dy * dy; // we save the sqrt + + // use <= to ensure last point takes precedence + // (last generally means on top of) + if (dist < smallestDistance) { + smallestDistance = dist; + item = [i, j / ps]; + } + } + } + + if (s.bars.show && !item) { // no other point can be nearby + + var barLeft, barRight; + + switch (s.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -s.bars.barWidth; + break; + default: + barLeft = -s.bars.barWidth / 2; + } + + barRight = barLeft + s.bars.barWidth; + + for (j = 0; j < points.length; j += ps) { + var x = points[j], y = points[j + 1], b = points[j + 2]; + if (x == null) + continue; + + // for a bar graph, the cursor must be inside the bar + if (series[i].bars.horizontal ? + (mx <= Math.max(b, x) && mx >= Math.min(b, x) && + my >= y + barLeft && my <= y + barRight) : + (mx >= x + barLeft && mx <= x + barRight && + my >= Math.min(b, y) && my <= Math.max(b, y))) + item = [i, j / ps]; + } + } + } + + if (item) { + i = item[0]; + j = item[1]; + ps = series[i].datapoints.pointsize; + + return { + datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps), + dataIndex: j, + series: series[i], + seriesIndex: i + }; + } + + return null; + } + + function onMouseMove(e) { + if (options.grid.hoverable) + triggerClickHoverEvent("plothover", e, + function(s) { return s["hoverable"] != false; }); + } + + function onMouseLeave(e) { + if (options.grid.hoverable) + triggerClickHoverEvent("plothover", e, + function(s) { return false; }); + } + + function onClick(e) { + if (plot.isSelecting) { + return; + } + + triggerClickHoverEvent("plotclick", e, function(s) { return s["clickable"] != false; }); + } + + // grafana addon - added to support mobile devices click in plot + function onTouch(e) { + if (!e.cancelable) { + return; + } + + if (!eventHolder.is(e.target) && eventHolder.has(e.target).length === 0) { + triggerClickHoverEvent("plotleave", e, function(s) { false; }); + return; + } + + onMouseMove(mapFromTouchEvent(e)); + e.preventDefault(); + } + + // grafana addon - added to support mobile devices and mapping touch event to click event structure + function mapFromTouchEvent(e) { + if (!e || !e.originalEvent) { + return e; + } + + if (e.pageX && e.pageY) { + return e; + } + + var original = e.originalEvent; + + if (original.changedTouches.length === 0) { + return e; + } + + var touch = original.changedTouches[0]; + e.pageX = touch.pageX; + e.pageY = touch.pageY; + + return e; + } + + // trigger click or hover event (they send the same parameters + // so we share their code) + function triggerClickHoverEvent(eventname, event, seriesFilter) { + var offset = eventHolder.offset(), + canvasX = event.pageX - offset.left - plotOffset.left, + canvasY = event.pageY - offset.top - plotOffset.top, + pos = canvasToAxisCoords({ left: canvasX, top: canvasY }); + + pos.pageX = event.pageX; + pos.pageY = event.pageY; + + // Add ctrlKey and metaKey to event + pos.ctrlKey = event.ctrlKey; + pos.metaKey = event.metaKey; + + var item = findNearbyItem(canvasX, canvasY, seriesFilter); + + if (item) { + // fill in mouse pos for any listeners out there + item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10); + item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10); + } + + if (options.grid.autoHighlight) { + // clear auto-highlights + for (var i = 0; i < highlights.length; ++i) { + var h = highlights[i]; + if (h.auto == eventname && + !(item && h.series == item.series && + h.point[0] == item.datapoint[0] && + h.point[1] == item.datapoint[1])) + unhighlight(h.series, h.point); + } + + if (item) + highlight(item.series, item.datapoint, eventname); + } + + placeholder.trigger(eventname, [pos, item]); + } + + function triggerRedrawOverlay() { + var t = options.interaction.redrawOverlayInterval; + if (t == -1) { // skip event queue + drawOverlay(); + return; + } + + if (!redrawTimeout) + redrawTimeout = setTimeout(drawOverlay, t); + } + + function drawOverlay() { + redrawTimeout = null; + + // draw highlights + octx.save(); + overlay.clear(); + octx.translate(plotOffset.left, plotOffset.top); + + var i, hi; + for (i = 0; i < highlights.length; ++i) { + hi = highlights[i]; + + if (hi.series.bars.show) + drawBarHighlight(hi.series, hi.point); + else + drawPointHighlight(hi.series, hi.point); + } + octx.restore(); + + executeHooks(hooks.drawOverlay, [octx]); + } + + function highlight(s, point, auto) { + if (typeof s == "number") + s = series[s]; + + if (typeof point == "number") { + var ps = s.datapoints.pointsize; + point = s.datapoints.points.slice(ps * point, ps * (point + 1)); + } + + var i = indexOfHighlight(s, point); + if (i == -1) { + highlights.push({ series: s, point: point, auto: auto }); + + triggerRedrawOverlay(); + } + else if (!auto) + highlights[i].auto = false; + } + + function unhighlight(s, point) { + if (s == null && point == null) { + highlights = []; + triggerRedrawOverlay(); + return; + } + + if (typeof s == "number") + s = series[s]; + + if (typeof point == "number") { + var ps = s.datapoints.pointsize; + point = s.datapoints.points.slice(ps * point, ps * (point + 1)); + } + + var i = indexOfHighlight(s, point); + if (i != -1) { + highlights.splice(i, 1); + + triggerRedrawOverlay(); + } + } + + function indexOfHighlight(s, p) { + for (var i = 0; i < highlights.length; ++i) { + var h = highlights[i]; + if (h.series == s && h.point[0] == p[0] + && h.point[1] == p[1]) + return i; + } + return -1; + } + + function drawPointHighlight(series, point) { + var x = point[0], y = point[1], + axisx = series.xaxis, axisy = series.yaxis, + highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(); + + if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) + return; + + var pointRadius = series.points.radius + series.points.lineWidth / 2; + octx.lineWidth = pointRadius; + octx.strokeStyle = highlightColor; + var radius = 1.5 * pointRadius; + x = axisx.p2c(x); + y = axisy.p2c(y); + + octx.beginPath(); + if (series.points.symbol == "circle") + octx.arc(x, y, radius, 0, 2 * Math.PI, false); + else + series.points.symbol(octx, x, y, radius, false); + octx.closePath(); + octx.stroke(); + } + + function drawBarHighlight(series, point) { + var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(), + fillStyle = highlightColor, + barLeft; + + switch (series.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -series.bars.barWidth; + break; + default: + barLeft = -series.bars.barWidth / 2; + } + + octx.lineWidth = series.bars.lineWidth; + octx.strokeStyle = highlightColor; + + drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth, + function() { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth); + } + + function getColorOrGradient(spec, bottom, top, defaultColor) { + if (typeof spec == "string") + return spec; + else { + // assume this is a gradient spec; IE currently only + // supports a simple vertical gradient properly, so that's + // what we support too + var gradient = ctx.createLinearGradient(0, top, 0, bottom); + + for (var i = 0, l = spec.colors.length; i < l; ++i) { + var c = spec.colors[i]; + if (typeof c != "string") { + var co = $.color.parse(defaultColor); + if (c.brightness != null) + co = co.scale('rgb', c.brightness); + if (c.opacity != null) + co.a *= c.opacity; + c = co.toString(); + } + gradient.addColorStop(i / (l - 1), c); + } + + return gradient; + } + } + } + + // Add the plot function to the top level of the jQuery object + + $.plot = function(placeholder, data, options) { + //var t0 = new Date(); + var plot = new Plot($(placeholder), data, options, $.plot.plugins); + //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime())); + return plot; + }; + + $.plot.version = "0.8.3"; + + $.plot.plugins = []; + + // Also add the plot function as a chainable property + + $.fn.plot = function(data, options) { + return this.each(function() { + $.plot(this, data, options); + }); + }; + + // round to nearby lower multiple of base + function floorInBase(n, base) { + return base * Math.floor(n / base); + } + })(jQuery);