1051 lines
42 KiB
JavaScript
1051 lines
42 KiB
JavaScript
/**
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* jqPlot
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* Pure JavaScript plotting plugin using jQuery
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*
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* Version: 1.0.0b2_r792
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*
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* Copyright (c) 2009-2011 Chris Leonello
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* jqPlot is currently available for use in all personal or commercial projects
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* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
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* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
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* choose the license that best suits your project and use it accordingly.
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*
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* Although not required, the author would appreciate an email letting him
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* know of any substantial use of jqPlot. You can reach the author at:
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* chris at jqplot dot com or see http://www.jqplot.com/info.php .
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*
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* If you are feeling kind and generous, consider supporting the project by
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* making a donation at: http://www.jqplot.com/donate.php .
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*
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* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
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*
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* version 2007.04.27
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* author Ash Searle
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* http://hexmen.com/blog/2007/03/printf-sprintf/
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* http://hexmen.com/js/sprintf.js
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* The author (Ash Searle) has placed this code in the public domain:
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* "This code is unrestricted: you are free to use it however you like."
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*
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*/
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(function($) {
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/**
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* Class: $.jqplot.Cursor
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* Plugin class representing the cursor as displayed on the plot.
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*/
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$.jqplot.Cursor = function(options) {
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// Group: Properties
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//
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// prop: style
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// CSS spec for cursor style
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this.style = 'crosshair';
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this.previousCursor = 'auto';
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// prop: show
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// wether to show the cursor or not.
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this.show = $.jqplot.config.enablePlugins;
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// prop: showTooltip
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// show a cursor position tooltip. Location of the tooltip
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// will be controlled by followMouse and tooltipLocation.
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this.showTooltip = true;
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// prop: followMouse
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// Tooltip follows the mouse, it is not at a fixed location.
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// Tooltip will show on the grid at the location given by
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// tooltipLocation, offset from the grid edge by tooltipOffset.
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this.followMouse = false;
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// prop: tooltipLocation
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// Where to position tooltip. If followMouse is true, this is
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// relative to the cursor, otherwise, it is relative to the grid.
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// One of 'n', 'ne', 'e', 'se', 's', 'sw', 'w', 'nw'
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this.tooltipLocation = 'se';
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// prop: tooltipOffset
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// Pixel offset of tooltip from the grid boudaries or cursor center.
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this.tooltipOffset = 6;
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// prop: showTooltipGridPosition
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// show the grid pixel coordinates of the mouse.
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this.showTooltipGridPosition = false;
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// prop: showTooltipUnitPosition
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// show the unit (data) coordinates of the mouse.
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this.showTooltipUnitPosition = true;
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// prop: showTooltipDataPosition
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// Used with showVerticalLine to show intersecting data points in the tooltip.
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this.showTooltipDataPosition = false;
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// prop: tooltipFormatString
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// sprintf format string for the tooltip.
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// Uses Ash Searle's javascript sprintf implementation
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// found here: http://hexmen.com/blog/2007/03/printf-sprintf/
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// See http://perldoc.perl.org/functions/sprintf.html for reference
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// Note, if showTooltipDataPosition is true, the default tooltipFormatString
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// will be set to the cursorLegendFormatString, not the default given here.
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this.tooltipFormatString = '%.4P, %.4P';
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// prop: useAxesFormatters
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// Use the x and y axes formatters to format the text in the tooltip.
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this.useAxesFormatters = true;
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// prop: tooltipAxisGroups
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// Show position for the specified axes.
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// This is an array like [['xaxis', 'yaxis'], ['xaxis', 'y2axis']]
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// Default is to compute automatically for all visible axes.
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this.tooltipAxisGroups = [];
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// prop: zoom
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// Enable plot zooming.
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this.zoom = false;
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// zoomProxy and zoomTarget properties are not directly set by user.
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// They Will be set through call to zoomProxy method.
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this.zoomProxy = false;
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this.zoomTarget = false;
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// prop: looseZoom
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// Will expand zoom range to provide more rounded tick values.
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// Works only with linear axes and date axes.
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this.looseZoom = false;
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// prop: clickReset
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// Will reset plot zoom if single click on plot without drag.
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this.clickReset = false;
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// prop: dblClickReset
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// Will reset plot zoom if double click on plot without drag.
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this.dblClickReset = true;
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// prop: showVerticalLine
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// draw a vertical line across the plot which follows the cursor.
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// When the line is near a data point, a special legend and/or tooltip can
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// be updated with the data values.
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this.showVerticalLine = false;
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// prop: showHorizontalLine
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// draw a horizontal line across the plot which follows the cursor.
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this.showHorizontalLine = false;
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// prop: constrainZoomTo
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// 'none', 'x' or 'y'
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this.constrainZoomTo = 'none';
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// // prop: autoscaleConstraint
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// // when a constrained axis is specified, true will
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// // auatoscale the adjacent axis.
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// this.autoscaleConstraint = true;
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this.shapeRenderer = new $.jqplot.ShapeRenderer();
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this._zoom = {start:[], end:[], started: false, zooming:false, isZoomed:false, axes:{start:{}, end:{}}, gridpos:{}, datapos:{}};
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this._tooltipElem;
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this.zoomCanvas;
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this.cursorCanvas;
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// prop: intersectionThreshold
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// pixel distance from data point or marker to consider cursor lines intersecting with point.
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// If data point markers are not shown, this should be >= 1 or will often miss point intersections.
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this.intersectionThreshold = 2;
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// prop: showCursorLegend
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// Replace the plot legend with an enhanced legend displaying intersection information.
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this.showCursorLegend = false;
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// prop: cursorLegendFormatString
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// Format string used in the cursor legend. If showTooltipDataPosition is true,
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// this will also be the default format string used by tooltipFormatString.
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this.cursorLegendFormatString = $.jqplot.Cursor.cursorLegendFormatString;
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// whether the cursor is over the grid or not.
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this._oldHandlers = {onselectstart: null, ondrag: null, onmousedown: null};
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// prop: constrainOutsideZoom
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// True to limit actual zoom area to edges of grid, even when zooming
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// outside of plot area. That is, can't zoom out by mousing outside plot.
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this.constrainOutsideZoom = true;
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// prop: showTooltipOutsideZoom
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// True will keep updating the tooltip when zooming of the grid.
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this.showTooltipOutsideZoom = false;
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// true if mouse is over grid, false if not.
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this.onGrid = false;
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$.extend(true, this, options);
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};
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$.jqplot.Cursor.cursorLegendFormatString = '%s x:%s, y:%s';
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// called with scope of plot
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$.jqplot.Cursor.init = function (target, data, opts){
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// add a cursor attribute to the plot
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var options = opts || {};
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this.plugins.cursor = new $.jqplot.Cursor(options.cursor);
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var c = this.plugins.cursor;
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if (c.show) {
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$.jqplot.eventListenerHooks.push(['jqplotMouseEnter', handleMouseEnter]);
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$.jqplot.eventListenerHooks.push(['jqplotMouseLeave', handleMouseLeave]);
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$.jqplot.eventListenerHooks.push(['jqplotMouseMove', handleMouseMove]);
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if (c.showCursorLegend) {
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opts.legend = opts.legend || {};
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opts.legend.renderer = $.jqplot.CursorLegendRenderer;
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opts.legend.formatString = this.plugins.cursor.cursorLegendFormatString;
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opts.legend.show = true;
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}
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if (c.zoom) {
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$.jqplot.eventListenerHooks.push(['jqplotMouseDown', handleMouseDown]);
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if (c.clickReset) {
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$.jqplot.eventListenerHooks.push(['jqplotClick', handleClick]);
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}
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if (c.dblClickReset) {
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$.jqplot.eventListenerHooks.push(['jqplotDblClick', handleDblClick]);
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}
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}
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this.resetZoom = function() {
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var axes = this.axes;
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if (!c.zoomProxy) {
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for (var ax in axes) {
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axes[ax].reset();
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axes[ax]._ticks = [];
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// fake out tick creation algorithm to make sure original auto
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// computed format string is used if _overrideFormatString is true
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axes[ax]._autoFormatString = c._zoom.axes[ax].tickFormatString;
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}
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this.redraw();
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}
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else {
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var ctx = this.plugins.cursor.zoomCanvas._ctx;
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ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
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ctx = null;
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}
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this.plugins.cursor._zoom.isZoomed = false;
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this.target.trigger('jqplotResetZoom', [this, this.plugins.cursor]);
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};
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if (c.showTooltipDataPosition) {
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c.showTooltipUnitPosition = false;
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c.showTooltipGridPosition = false;
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if (options.cursor.tooltipFormatString == undefined) {
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c.tooltipFormatString = $.jqplot.Cursor.cursorLegendFormatString;
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}
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}
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}
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};
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// called with context of plot
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$.jqplot.Cursor.postDraw = function() {
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var c = this.plugins.cursor;
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// Memory Leaks patch
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if (c.zoomCanvas) {
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c.zoomCanvas.resetCanvas();
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c.zoomCanvas = null;
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}
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if (c.cursorCanvas) {
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c.cursorCanvas.resetCanvas();
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c.cursorCanvas = null;
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}
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if (c._tooltipElem) {
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c._tooltipElem.emptyForce();
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c._tooltipElem = null;
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}
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if (c.zoom) {
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c.zoomCanvas = new $.jqplot.GenericCanvas();
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this.eventCanvas._elem.before(c.zoomCanvas.createElement(this._gridPadding, 'jqplot-zoom-canvas', this._plotDimensions, this));
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c.zoomCanvas.setContext();
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}
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var elem = document.createElement('div');
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c._tooltipElem = $(elem);
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elem = null;
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c._tooltipElem.addClass('jqplot-cursor-tooltip');
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c._tooltipElem.css({position:'absolute', display:'none'});
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if (c.zoomCanvas) {
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c.zoomCanvas._elem.before(c._tooltipElem);
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}
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else {
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this.eventCanvas._elem.before(c._tooltipElem);
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}
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if (c.showVerticalLine || c.showHorizontalLine) {
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c.cursorCanvas = new $.jqplot.GenericCanvas();
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this.eventCanvas._elem.before(c.cursorCanvas.createElement(this._gridPadding, 'jqplot-cursor-canvas', this._plotDimensions, this));
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c.cursorCanvas.setContext();
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}
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// if we are showing the positions in unit coordinates, and no axes groups
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// were specified, create a default set.
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if (c.showTooltipUnitPosition){
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if (c.tooltipAxisGroups.length === 0) {
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var series = this.series;
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var s;
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var temp = [];
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for (var i=0; i<series.length; i++) {
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s = series[i];
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var ax = s.xaxis+','+s.yaxis;
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if ($.inArray(ax, temp) == -1) {
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temp.push(ax);
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}
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}
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for (var i=0; i<temp.length; i++) {
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c.tooltipAxisGroups.push(temp[i].split(','));
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}
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}
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}
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};
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// Group: methods
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//
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// method: $.jqplot.Cursor.zoomProxy
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// links targetPlot to controllerPlot so that plot zooming of
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// targetPlot will be controlled by zooming on the controllerPlot.
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// controllerPlot will not actually zoom, but acts as an
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// overview plot. Note, the zoom options must be set to true for
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// zoomProxy to work.
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$.jqplot.Cursor.zoomProxy = function(targetPlot, controllerPlot) {
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var tc = targetPlot.plugins.cursor;
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var cc = controllerPlot.plugins.cursor;
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tc.zoomTarget = true;
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tc.zoom = true;
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tc.style = 'auto';
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tc.dblClickReset = false;
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cc.zoom = true;
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cc.zoomProxy = true;
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controllerPlot.target.bind('jqplotZoom', plotZoom);
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controllerPlot.target.bind('jqplotResetZoom', plotReset);
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function plotZoom(ev, gridpos, datapos, plot, cursor) {
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tc.doZoom(gridpos, datapos, targetPlot, cursor);
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}
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function plotReset(ev, plot, cursor) {
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targetPlot.resetZoom();
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}
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};
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$.jqplot.Cursor.prototype.resetZoom = function(plot, cursor) {
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var axes = plot.axes;
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var cax = cursor._zoom.axes;
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if (!plot.plugins.cursor.zoomProxy && cursor._zoom.isZoomed) {
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for (var ax in axes) {
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// axes[ax]._ticks = [];
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// axes[ax].min = cax[ax].min;
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// axes[ax].max = cax[ax].max;
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// axes[ax].numberTicks = cax[ax].numberTicks;
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// axes[ax].tickInterval = cax[ax].tickInterval;
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// // for date axes
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// axes[ax].daTickInterval = cax[ax].daTickInterval;
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axes[ax].reset();
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axes[ax]._ticks = [];
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// fake out tick creation algorithm to make sure original auto
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// computed format string is used if _overrideFormatString is true
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axes[ax]._autoFormatString = cax[ax].tickFormatString;
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}
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plot.redraw();
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cursor._zoom.isZoomed = false;
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}
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else {
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var ctx = cursor.zoomCanvas._ctx;
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ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
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ctx = null;
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}
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plot.target.trigger('jqplotResetZoom', [plot, cursor]);
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};
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$.jqplot.Cursor.resetZoom = function(plot) {
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plot.resetZoom();
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};
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$.jqplot.Cursor.prototype.doZoom = function (gridpos, datapos, plot, cursor) {
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var c = cursor;
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var axes = plot.axes;
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var zaxes = c._zoom.axes;
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var start = zaxes.start;
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var end = zaxes.end;
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var min, max, dp, span;
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var ctx = plot.plugins.cursor.zoomCanvas._ctx;
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// don't zoom if zoom area is too small (in pixels)
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if ((c.constrainZoomTo == 'none' && Math.abs(gridpos.x - c._zoom.start[0]) > 6 && Math.abs(gridpos.y - c._zoom.start[1]) > 6) || (c.constrainZoomTo == 'x' && Math.abs(gridpos.x - c._zoom.start[0]) > 6) || (c.constrainZoomTo == 'y' && Math.abs(gridpos.y - c._zoom.start[1]) > 6)) {
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if (!plot.plugins.cursor.zoomProxy) {
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for (var ax in datapos) {
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// make a copy of the original axes to revert back.
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if (c._zoom.axes[ax] == undefined) {
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c._zoom.axes[ax] = {};
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c._zoom.axes[ax].numberTicks = axes[ax].numberTicks;
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c._zoom.axes[ax].tickInterval = axes[ax].tickInterval;
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// for date axes...
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c._zoom.axes[ax].daTickInterval = axes[ax].daTickInterval;
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c._zoom.axes[ax].min = axes[ax].min;
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c._zoom.axes[ax].max = axes[ax].max;
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c._zoom.axes[ax].tickFormatString = (axes[ax].tickOptions != null) ? axes[ax].tickOptions.formatString : '';
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}
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if ((c.constrainZoomTo == 'none') || (c.constrainZoomTo == 'x' && ax.charAt(0) == 'x') || (c.constrainZoomTo == 'y' && ax.charAt(0) == 'y')) {
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dp = datapos[ax];
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if (dp != null) {
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var newmin, newmax;
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if (dp > start[ax]) {
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newmin = start[ax];
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newmax = dp;
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}
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else {
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span = start[ax] - dp;
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newmin = dp;
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newmax = start[ax];
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}
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if (this.looseZoom && (axes[ax].renderer.constructor === $.jqplot.LinearAxisRenderer || axes[ax].renderer.constructor === $.jqplot.DateAxisRenderer)) {
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var ret = $.jqplot.LinearTickGenerator(newmin, newmax);
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axes[ax].min = ret[0];
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axes[ax].max = ret[1];
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axes[ax]._autoFormatString = ret[3];
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axes[ax].numberTicks = ret[2];
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axes[ax].tickInterval = ret[4];
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// for date axes...
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axes[ax].daTickInterval = [ret[4]/1000, 'seconds'];
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}
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else {
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axes[ax].min = newmin;
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axes[ax].max = newmax;
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axes[ax].tickInterval = null;
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// for date axes...
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axes[ax].daTickInterval = null;
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}
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axes[ax]._ticks = [];
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}
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}
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// if ((c.constrainZoomTo == 'x' && ax.charAt(0) == 'y' && c.autoscaleConstraint) || (c.constrainZoomTo == 'y' && ax.charAt(0) == 'x' && c.autoscaleConstraint)) {
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// dp = datapos[ax];
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// if (dp != null) {
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// axes[ax].max == null;
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// axes[ax].min = null;
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// }
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// }
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}
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ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
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plot.redraw();
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c._zoom.isZoomed = true;
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ctx = null;
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}
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plot.target.trigger('jqplotZoom', [gridpos, datapos, plot, cursor]);
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}
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};
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$.jqplot.preInitHooks.push($.jqplot.Cursor.init);
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$.jqplot.postDrawHooks.push($.jqplot.Cursor.postDraw);
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function updateTooltip(gridpos, datapos, plot) {
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var c = plot.plugins.cursor;
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var s = '';
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var addbr = false;
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if (c.showTooltipGridPosition) {
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s = gridpos.x+', '+gridpos.y;
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addbr = true;
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}
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if (c.showTooltipUnitPosition) {
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var g;
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for (var i=0; i<c.tooltipAxisGroups.length; i++) {
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g = c.tooltipAxisGroups[i];
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if (addbr) {
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s += '<br />';
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}
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if (c.useAxesFormatters) {
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var xf = plot.axes[g[0]]._ticks[0].formatter;
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var yf = plot.axes[g[1]]._ticks[0].formatter;
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var xfstr = plot.axes[g[0]]._ticks[0].formatString;
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var yfstr = plot.axes[g[1]]._ticks[0].formatString;
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s += xf(xfstr, datapos[g[0]]) + ', '+ yf(yfstr, datapos[g[1]]);
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}
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else {
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s += $.jqplot.sprintf(c.tooltipFormatString, datapos[g[0]], datapos[g[1]]);
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}
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addbr = true;
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}
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}
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if (c.showTooltipDataPosition) {
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var series = plot.series;
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var ret = getIntersectingPoints(plot, gridpos.x, gridpos.y);
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var addbr = false;
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for (var i = 0; i< series.length; i++) {
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if (series[i].show) {
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var idx = series[i].index;
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var label = series[i].label.toString();
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var cellid = $.inArray(idx, ret.indices);
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var sx = undefined;
|
|
var sy = undefined;
|
|
if (cellid != -1) {
|
|
var data = ret.data[cellid].data;
|
|
if (c.useAxesFormatters) {
|
|
var xf = series[i]._xaxis._ticks[0].formatter;
|
|
var yf = series[i]._yaxis._ticks[0].formatter;
|
|
var xfstr = series[i]._xaxis._ticks[0].formatString;
|
|
var yfstr = series[i]._yaxis._ticks[0].formatString;
|
|
sx = xf(xfstr, data[0]);
|
|
sy = yf(yfstr, data[1]);
|
|
}
|
|
else {
|
|
sx = data[0];
|
|
sy = data[1];
|
|
}
|
|
if (addbr) {
|
|
s += '<br />';
|
|
}
|
|
s += $.jqplot.sprintf(c.tooltipFormatString, label, sx, sy);
|
|
addbr = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
c._tooltipElem.html(s);
|
|
}
|
|
|
|
function moveLine(gridpos, plot) {
|
|
var c = plot.plugins.cursor;
|
|
var ctx = c.cursorCanvas._ctx;
|
|
ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
|
|
if (c.showVerticalLine) {
|
|
c.shapeRenderer.draw(ctx, [[gridpos.x, 0], [gridpos.x, ctx.canvas.height]]);
|
|
}
|
|
if (c.showHorizontalLine) {
|
|
c.shapeRenderer.draw(ctx, [[0, gridpos.y], [ctx.canvas.width, gridpos.y]]);
|
|
}
|
|
var ret = getIntersectingPoints(plot, gridpos.x, gridpos.y);
|
|
if (c.showCursorLegend) {
|
|
var cells = $(plot.targetId + ' td.jqplot-cursor-legend-label');
|
|
for (var i=0; i<cells.length; i++) {
|
|
var idx = $(cells[i]).data('seriesIndex');
|
|
var series = plot.series[idx];
|
|
var label = series.label.toString();
|
|
var cellid = $.inArray(idx, ret.indices);
|
|
var sx = undefined;
|
|
var sy = undefined;
|
|
if (cellid != -1) {
|
|
var data = ret.data[cellid].data;
|
|
if (c.useAxesFormatters) {
|
|
var xf = series._xaxis._ticks[0].formatter;
|
|
var yf = series._yaxis._ticks[0].formatter;
|
|
var xfstr = series._xaxis._ticks[0].formatString;
|
|
var yfstr = series._yaxis._ticks[0].formatString;
|
|
sx = xf(xfstr, data[0]);
|
|
sy = yf(yfstr, data[1]);
|
|
}
|
|
else {
|
|
sx = data[0];
|
|
sy = data[1];
|
|
}
|
|
}
|
|
if (plot.legend.escapeHtml) {
|
|
$(cells[i]).text($.jqplot.sprintf(c.cursorLegendFormatString, label, sx, sy));
|
|
}
|
|
else {
|
|
$(cells[i]).html($.jqplot.sprintf(c.cursorLegendFormatString, label, sx, sy));
|
|
}
|
|
}
|
|
}
|
|
ctx = null;
|
|
}
|
|
|
|
function getIntersectingPoints(plot, x, y) {
|
|
var ret = {indices:[], data:[]};
|
|
var s, i, d0, d, j, r, p;
|
|
var threshold;
|
|
var c = plot.plugins.cursor;
|
|
for (var i=0; i<plot.series.length; i++) {
|
|
s = plot.series[i];
|
|
r = s.renderer;
|
|
if (s.show) {
|
|
threshold = c.intersectionThreshold;
|
|
if (s.showMarker) {
|
|
threshold += s.markerRenderer.size/2;
|
|
}
|
|
for (var j=0; j<s.gridData.length; j++) {
|
|
p = s.gridData[j];
|
|
// check vertical line
|
|
if (c.showVerticalLine) {
|
|
if (Math.abs(x-p[0]) <= threshold) {
|
|
ret.indices.push(i);
|
|
ret.data.push({seriesIndex: i, pointIndex:j, gridData:p, data:s.data[j]});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function moveTooltip(gridpos, plot) {
|
|
var c = plot.plugins.cursor;
|
|
var elem = c._tooltipElem;
|
|
switch (c.tooltipLocation) {
|
|
case 'nw':
|
|
var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top - c.tooltipOffset - elem.outerHeight(true);
|
|
break;
|
|
case 'n':
|
|
var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true)/2;
|
|
var y = gridpos.y + plot._gridPadding.top - c.tooltipOffset - elem.outerHeight(true);
|
|
break;
|
|
case 'ne':
|
|
var x = gridpos.x + plot._gridPadding.left + c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top - c.tooltipOffset - elem.outerHeight(true);
|
|
break;
|
|
case 'e':
|
|
var x = gridpos.x + plot._gridPadding.left + c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top - elem.outerHeight(true)/2;
|
|
break;
|
|
case 'se':
|
|
var x = gridpos.x + plot._gridPadding.left + c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top + c.tooltipOffset;
|
|
break;
|
|
case 's':
|
|
var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true)/2;
|
|
var y = gridpos.y + plot._gridPadding.top + c.tooltipOffset;
|
|
break;
|
|
case 'sw':
|
|
var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top + c.tooltipOffset;
|
|
break;
|
|
case 'w':
|
|
var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top - elem.outerHeight(true)/2;
|
|
break;
|
|
default:
|
|
var x = gridpos.x + plot._gridPadding.left + c.tooltipOffset;
|
|
var y = gridpos.y + plot._gridPadding.top + c.tooltipOffset;
|
|
break;
|
|
}
|
|
|
|
elem.css('left', x);
|
|
elem.css('top', y);
|
|
elem = null;
|
|
}
|
|
|
|
function positionTooltip(plot) {
|
|
// fake a grid for positioning
|
|
var grid = plot._gridPadding;
|
|
var c = plot.plugins.cursor;
|
|
var elem = c._tooltipElem;
|
|
switch (c.tooltipLocation) {
|
|
case 'nw':
|
|
var a = grid.left + c.tooltipOffset;
|
|
var b = grid.top + c.tooltipOffset;
|
|
elem.css('left', a);
|
|
elem.css('top', b);
|
|
break;
|
|
case 'n':
|
|
var a = (grid.left + (plot._plotDimensions.width - grid.right))/2 - elem.outerWidth(true)/2;
|
|
var b = grid.top + c.tooltipOffset;
|
|
elem.css('left', a);
|
|
elem.css('top', b);
|
|
break;
|
|
case 'ne':
|
|
var a = grid.right + c.tooltipOffset;
|
|
var b = grid.top + c.tooltipOffset;
|
|
elem.css({right:a, top:b});
|
|
break;
|
|
case 'e':
|
|
var a = grid.right + c.tooltipOffset;
|
|
var b = (grid.top + (plot._plotDimensions.height - grid.bottom))/2 - elem.outerHeight(true)/2;
|
|
elem.css({right:a, top:b});
|
|
break;
|
|
case 'se':
|
|
var a = grid.right + c.tooltipOffset;
|
|
var b = grid.bottom + c.tooltipOffset;
|
|
elem.css({right:a, bottom:b});
|
|
break;
|
|
case 's':
|
|
var a = (grid.left + (plot._plotDimensions.width - grid.right))/2 - elem.outerWidth(true)/2;
|
|
var b = grid.bottom + c.tooltipOffset;
|
|
elem.css({left:a, bottom:b});
|
|
break;
|
|
case 'sw':
|
|
var a = grid.left + c.tooltipOffset;
|
|
var b = grid.bottom + c.tooltipOffset;
|
|
elem.css({left:a, bottom:b});
|
|
break;
|
|
case 'w':
|
|
var a = grid.left + c.tooltipOffset;
|
|
var b = (grid.top + (plot._plotDimensions.height - grid.bottom))/2 - elem.outerHeight(true)/2;
|
|
elem.css({left:a, top:b});
|
|
break;
|
|
default: // same as 'se'
|
|
var a = grid.right - c.tooltipOffset;
|
|
var b = grid.bottom + c.tooltipOffset;
|
|
elem.css({right:a, bottom:b});
|
|
break;
|
|
}
|
|
elem = null;
|
|
}
|
|
|
|
function handleClick (ev, gridpos, datapos, neighbor, plot) {
|
|
ev.preventDefault();
|
|
ev.stopImmediatePropagation();
|
|
var c = plot.plugins.cursor;
|
|
if (c.clickReset) {
|
|
c.resetZoom(plot, c);
|
|
}
|
|
var sel = window.getSelection;
|
|
if (document.selection && document.selection.empty)
|
|
{
|
|
document.selection.empty();
|
|
}
|
|
else if (sel && !sel().isCollapsed) {
|
|
sel().collapse();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function handleDblClick (ev, gridpos, datapos, neighbor, plot) {
|
|
ev.preventDefault();
|
|
ev.stopImmediatePropagation();
|
|
var c = plot.plugins.cursor;
|
|
if (c.dblClickReset) {
|
|
c.resetZoom(plot, c);
|
|
}
|
|
var sel = window.getSelection;
|
|
if (document.selection && document.selection.empty)
|
|
{
|
|
document.selection.empty();
|
|
}
|
|
else if (sel && !sel().isCollapsed) {
|
|
sel().collapse();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function handleMouseLeave(ev, gridpos, datapos, neighbor, plot) {
|
|
var c = plot.plugins.cursor;
|
|
c.onGrid = false;
|
|
if (c.show) {
|
|
$(ev.target).css('cursor', c.previousCursor);
|
|
if (c.showTooltip && !(c._zoom.zooming && c.showTooltipOutsideZoom && !c.constrainOutsideZoom)) {
|
|
c._tooltipElem.hide();
|
|
}
|
|
if (c.zoom) {
|
|
c._zoom.gridpos = gridpos;
|
|
c._zoom.datapos = datapos;
|
|
}
|
|
if (c.showVerticalLine || c.showHorizontalLine) {
|
|
var ctx = c.cursorCanvas._ctx;
|
|
ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
|
|
ctx = null;
|
|
}
|
|
if (c.showCursorLegend) {
|
|
var cells = $(plot.targetId + ' td.jqplot-cursor-legend-label');
|
|
for (var i=0; i<cells.length; i++) {
|
|
var idx = $(cells[i]).data('seriesIndex');
|
|
var series = plot.series[idx];
|
|
var label = series.label.toString();
|
|
if (plot.legend.escapeHtml) {
|
|
$(cells[i]).text($.jqplot.sprintf(c.cursorLegendFormatString, label, undefined, undefined));
|
|
}
|
|
else {
|
|
$(cells[i]).html($.jqplot.sprintf(c.cursorLegendFormatString, label, undefined, undefined));
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function handleMouseEnter(ev, gridpos, datapos, neighbor, plot) {
|
|
var c = plot.plugins.cursor;
|
|
c.onGrid = true;
|
|
if (c.show) {
|
|
c.previousCursor = ev.target.style.cursor;
|
|
ev.target.style.cursor = c.style;
|
|
if (c.showTooltip) {
|
|
updateTooltip(gridpos, datapos, plot);
|
|
if (c.followMouse) {
|
|
moveTooltip(gridpos, plot);
|
|
}
|
|
else {
|
|
positionTooltip(plot);
|
|
}
|
|
c._tooltipElem.show();
|
|
}
|
|
if (c.showVerticalLine || c.showHorizontalLine) {
|
|
moveLine(gridpos, plot);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
function handleMouseMove(ev, gridpos, datapos, neighbor, plot) {
|
|
var c = plot.plugins.cursor;
|
|
if (c.show) {
|
|
if (c.showTooltip) {
|
|
updateTooltip(gridpos, datapos, plot);
|
|
if (c.followMouse) {
|
|
moveTooltip(gridpos, plot);
|
|
}
|
|
}
|
|
if (c.showVerticalLine || c.showHorizontalLine) {
|
|
moveLine(gridpos, plot);
|
|
}
|
|
}
|
|
}
|
|
|
|
function getEventPosition(ev) {
|
|
var plot = ev.data.plot;
|
|
var go = plot.eventCanvas._elem.offset();
|
|
var gridPos = {x:ev.pageX - go.left, y:ev.pageY - go.top};
|
|
var dataPos = {xaxis:null, yaxis:null, x2axis:null, y2axis:null, y3axis:null, y4axis:null, y5axis:null, y6axis:null, y7axis:null, y8axis:null, y9axis:null};
|
|
var an = ['xaxis', 'yaxis', 'x2axis', 'y2axis', 'y3axis', 'y4axis', 'y5axis', 'y6axis', 'y7axis', 'y8axis', 'y9axis'];
|
|
var ax = plot.axes;
|
|
var n, axis;
|
|
for (n=11; n>0; n--) {
|
|
axis = an[n-1];
|
|
if (ax[axis].show) {
|
|
dataPos[axis] = ax[axis].series_p2u(gridPos[axis.charAt(0)]);
|
|
}
|
|
}
|
|
|
|
return {offsets:go, gridPos:gridPos, dataPos:dataPos};
|
|
}
|
|
|
|
function handleZoomMove(ev) {
|
|
var plot = ev.data.plot;
|
|
var c = plot.plugins.cursor;
|
|
// don't do anything if not on grid.
|
|
if (c.show && c.zoom && c._zoom.started && !c.zoomTarget) {
|
|
var ctx = c.zoomCanvas._ctx;
|
|
var positions = getEventPosition(ev);
|
|
var gridpos = positions.gridPos;
|
|
var datapos = positions.dataPos;
|
|
c._zoom.gridpos = gridpos;
|
|
c._zoom.datapos = datapos;
|
|
c._zoom.zooming = true;
|
|
var xpos = gridpos.x;
|
|
var ypos = gridpos.y;
|
|
var height = ctx.canvas.height;
|
|
var width = ctx.canvas.width;
|
|
if (c.showTooltip && !c.onGrid && c.showTooltipOutsideZoom) {
|
|
updateTooltip(gridpos, datapos, plot);
|
|
if (c.followMouse) {
|
|
moveTooltip(gridpos, plot);
|
|
}
|
|
}
|
|
if (c.constrainZoomTo == 'x') {
|
|
c._zoom.end = [xpos, height];
|
|
}
|
|
else if (c.constrainZoomTo == 'y') {
|
|
c._zoom.end = [width, ypos];
|
|
}
|
|
else {
|
|
c._zoom.end = [xpos, ypos];
|
|
}
|
|
var sel = window.getSelection;
|
|
if (document.selection && document.selection.empty)
|
|
{
|
|
document.selection.empty();
|
|
}
|
|
else if (sel && !sel().isCollapsed) {
|
|
sel().collapse();
|
|
}
|
|
drawZoomBox.call(c);
|
|
ctx = null;
|
|
}
|
|
}
|
|
|
|
function handleMouseDown(ev, gridpos, datapos, neighbor, plot) {
|
|
var c = plot.plugins.cursor;
|
|
$(document).one('mouseup.jqplot_cursor', {plot:plot}, handleMouseUp);
|
|
var axes = plot.axes;
|
|
if (document.onselectstart != undefined) {
|
|
c._oldHandlers.onselectstart = document.onselectstart;
|
|
document.onselectstart = function () { return false; };
|
|
}
|
|
if (document.ondrag != undefined) {
|
|
c._oldHandlers.ondrag = document.ondrag;
|
|
document.ondrag = function () { return false; };
|
|
}
|
|
if (document.onmousedown != undefined) {
|
|
c._oldHandlers.onmousedown = document.onmousedown;
|
|
document.onmousedown = function () { return false; };
|
|
}
|
|
if (c.zoom) {
|
|
if (!c.zoomProxy) {
|
|
var ctx = c.zoomCanvas._ctx;
|
|
ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
|
|
ctx = null;
|
|
}
|
|
if (c.constrainZoomTo == 'x') {
|
|
c._zoom.start = [gridpos.x, 0];
|
|
}
|
|
else if (c.constrainZoomTo == 'y') {
|
|
c._zoom.start = [0, gridpos.y];
|
|
}
|
|
else {
|
|
c._zoom.start = [gridpos.x, gridpos.y];
|
|
}
|
|
c._zoom.started = true;
|
|
for (var ax in datapos) {
|
|
// get zoom starting position.
|
|
c._zoom.axes.start[ax] = datapos[ax];
|
|
}
|
|
$(document).bind('mousemove.jqplotCursor', {plot:plot}, handleZoomMove);
|
|
}
|
|
}
|
|
|
|
function handleMouseUp(ev) {
|
|
var plot = ev.data.plot;
|
|
var c = plot.plugins.cursor;
|
|
if (c.zoom && c._zoom.zooming && !c.zoomTarget) {
|
|
var xpos = c._zoom.gridpos.x;
|
|
var ypos = c._zoom.gridpos.y;
|
|
var datapos = c._zoom.datapos;
|
|
var height = c.zoomCanvas._ctx.canvas.height;
|
|
var width = c.zoomCanvas._ctx.canvas.width;
|
|
var axes = plot.axes;
|
|
|
|
if (c.constrainOutsideZoom && !c.onGrid) {
|
|
if (xpos < 0) { xpos = 0; }
|
|
else if (xpos > width) { xpos = width; }
|
|
if (ypos < 0) { ypos = 0; }
|
|
else if (ypos > height) { ypos = height; }
|
|
|
|
for (var axis in datapos) {
|
|
if (datapos[axis]) {
|
|
if (axis.charAt(0) == 'x') {
|
|
datapos[axis] = axes[axis].series_p2u(xpos);
|
|
}
|
|
else {
|
|
datapos[axis] = axes[axis].series_p2u(ypos);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (c.constrainZoomTo == 'x') {
|
|
ypos = height;
|
|
}
|
|
else if (c.constrainZoomTo == 'y') {
|
|
xpos = width;
|
|
}
|
|
c._zoom.end = [xpos, ypos];
|
|
c._zoom.gridpos = {x:xpos, y:ypos};
|
|
|
|
c.doZoom(c._zoom.gridpos, datapos, plot, c);
|
|
}
|
|
c._zoom.started = false;
|
|
c._zoom.zooming = false;
|
|
|
|
$(document).unbind('mousemove.jqplotCursor', handleZoomMove);
|
|
|
|
if (document.onselectstart != undefined && c._oldHandlers.onselectstart != null){
|
|
document.onselectstart = c._oldHandlers.onselectstart;
|
|
c._oldHandlers.onselectstart = null;
|
|
}
|
|
if (document.ondrag != undefined && c._oldHandlers.ondrag != null){
|
|
document.ondrag = c._oldHandlers.ondrag;
|
|
c._oldHandlers.ondrag = null;
|
|
}
|
|
if (document.onmousedown != undefined && c._oldHandlers.onmousedown != null){
|
|
document.onmousedown = c._oldHandlers.onmousedown;
|
|
c._oldHandlers.onmousedown = null;
|
|
}
|
|
|
|
}
|
|
|
|
function drawZoomBox() {
|
|
var start = this._zoom.start;
|
|
var end = this._zoom.end;
|
|
var ctx = this.zoomCanvas._ctx;
|
|
var l, t, h, w;
|
|
if (end[0] > start[0]) {
|
|
l = start[0];
|
|
w = end[0] - start[0];
|
|
}
|
|
else {
|
|
l = end[0];
|
|
w = start[0] - end[0];
|
|
}
|
|
if (end[1] > start[1]) {
|
|
t = start[1];
|
|
h = end[1] - start[1];
|
|
}
|
|
else {
|
|
t = end[1];
|
|
h = start[1] - end[1];
|
|
}
|
|
ctx.fillStyle = 'rgba(0,0,0,0.2)';
|
|
ctx.strokeStyle = '#999999';
|
|
ctx.lineWidth = 1.0;
|
|
ctx.clearRect(0,0,ctx.canvas.width, ctx.canvas.height);
|
|
ctx.fillRect(0,0,ctx.canvas.width, ctx.canvas.height);
|
|
ctx.clearRect(l, t, w, h);
|
|
// IE won't show transparent fill rect, so stroke a rect also.
|
|
ctx.strokeRect(l,t,w,h);
|
|
ctx = null;
|
|
}
|
|
|
|
$.jqplot.CursorLegendRenderer = function(options) {
|
|
$.jqplot.TableLegendRenderer.call(this, options);
|
|
this.formatString = '%s';
|
|
};
|
|
|
|
$.jqplot.CursorLegendRenderer.prototype = new $.jqplot.TableLegendRenderer();
|
|
$.jqplot.CursorLegendRenderer.prototype.constructor = $.jqplot.CursorLegendRenderer;
|
|
|
|
// called in context of a Legend
|
|
$.jqplot.CursorLegendRenderer.prototype.draw = function() {
|
|
if (this._elem) {
|
|
this._elem.emptyForce();
|
|
this._elem = null;
|
|
}
|
|
if (this.show) {
|
|
var series = this._series, s;
|
|
// make a table. one line label per row.
|
|
var elem = document.createElement('div');
|
|
this._elem = $(elem);
|
|
elem = null;
|
|
this._elem.addClass('jqplot-legend jqplot-cursor-legend');
|
|
this._elem.css('position', 'absolute');
|
|
|
|
var pad = false;
|
|
for (var i = 0; i< series.length; i++) {
|
|
s = series[i];
|
|
if (s.show && s.showLabel) {
|
|
var lt = $.jqplot.sprintf(this.formatString, s.label.toString());
|
|
if (lt) {
|
|
var color = s.color;
|
|
if (s._stack && !s.fill) {
|
|
color = '';
|
|
}
|
|
addrow.call(this, lt, color, pad, i);
|
|
pad = true;
|
|
}
|
|
// let plugins add more rows to legend. Used by trend line plugin.
|
|
for (var j=0; j<$.jqplot.addLegendRowHooks.length; j++) {
|
|
var item = $.jqplot.addLegendRowHooks[j].call(this, s);
|
|
if (item) {
|
|
addrow.call(this, item.label, item.color, pad);
|
|
pad = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
series = s = null;
|
|
delete series;
|
|
delete s;
|
|
}
|
|
|
|
function addrow(label, color, pad, idx) {
|
|
var rs = (pad) ? this.rowSpacing : '0';
|
|
var tr = $('<tr class="jqplot-legend jqplot-cursor-legend"></tr>').appendTo(this._elem);
|
|
tr.data('seriesIndex', idx);
|
|
$('<td class="jqplot-legend jqplot-cursor-legend-swatch" style="padding-top:'+rs+';">'+
|
|
'<div style="border:1px solid #cccccc;padding:0.2em;">'+
|
|
'<div class="jqplot-cursor-legend-swatch" style="background-color:'+color+';"></div>'+
|
|
'</div></td>').appendTo(tr);
|
|
var td = $('<td class="jqplot-legend jqplot-cursor-legend-label" style="vertical-align:middle;padding-top:'+rs+';"></td>');
|
|
td.appendTo(tr);
|
|
td.data('seriesIndex', idx);
|
|
if (this.escapeHtml) {
|
|
td.text(label);
|
|
}
|
|
else {
|
|
td.html(label);
|
|
}
|
|
tr = null;
|
|
td = null;
|
|
}
|
|
return this._elem;
|
|
};
|
|
|
|
})(jQuery); |