/usr/share/gnucash/jqplot/jqplot.canvasAxisLabelRenderer.js is in gnucash-common 1:2.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | /**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: 1.0.6
* Revision: 1138
*
* Copyright (c) 2009-2013 Chris Leonello
* jqPlot is currently available for use in all personal or commercial projects
* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
* choose the license that best suits your project and use it accordingly.
*
* Although not required, the author would appreciate an email letting him
* know of any substantial use of jqPlot. You can reach the author at:
* chris at jqplot dot com or see http://www.jqplot.com/info.php .
*
* If you are feeling kind and generous, consider supporting the project by
* making a donation at: http://www.jqplot.com/donate.php .
*
* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
*
* version 2007.04.27
* author Ash Searle
* http://hexmen.com/blog/2007/03/printf-sprintf/
* http://hexmen.com/js/sprintf.js
* The author (Ash Searle) has placed this code in the public domain:
* "This code is unrestricted: you are free to use it however you like."
*
*/
(function($) {
/**
* Class: $.jqplot.CanvasAxisLabelRenderer
* Renderer to draw axis labels with a canvas element to support advanced
* featrues such as rotated text. This renderer uses a separate rendering engine
* to draw the text on the canvas. Two modes of rendering the text are available.
* If the browser has native font support for canvas fonts (currently Mozila 3.5
* and Safari 4), you can enable text rendering with the canvas fillText method.
* You do so by setting the "enableFontSupport" option to true.
*
* Browsers lacking native font support will have the text drawn on the canvas
* using the Hershey font metrics. Even if the "enableFontSupport" option is true
* non-supporting browsers will still render with the Hershey font.
*
*/
$.jqplot.CanvasAxisLabelRenderer = function(options) {
// Group: Properties
// prop: angle
// angle of text, measured clockwise from x axis.
this.angle = 0;
// name of the axis associated with this tick
this.axis;
// prop: show
// wether or not to show the tick (mark and label).
this.show = true;
// prop: showLabel
// wether or not to show the label.
this.showLabel = true;
// prop: label
// label for the axis.
this.label = '';
// prop: fontFamily
// CSS spec for the font-family css attribute.
// Applies only to browsers supporting native font rendering in the
// canvas tag. Currently Mozilla 3.5 and Safari 4.
this.fontFamily = '"Trebuchet MS", Arial, Helvetica, sans-serif';
// prop: fontSize
// CSS spec for font size.
this.fontSize = '11pt';
// prop: fontWeight
// CSS spec for fontWeight: normal, bold, bolder, lighter or a number 100 - 900
this.fontWeight = 'normal';
// prop: fontStretch
// Multiplier to condense or expand font width.
// Applies only to browsers which don't support canvas native font rendering.
this.fontStretch = 1.0;
// prop: textColor
// css spec for the color attribute.
this.textColor = '#666666';
// prop: enableFontSupport
// true to turn on native canvas font support in Mozilla 3.5+ and Safari 4+.
// If true, label will be drawn with canvas tag native support for fonts.
// If false, label will be drawn with Hershey font metrics.
this.enableFontSupport = true;
// prop: pt2px
// Point to pixel scaling factor, used for computing height of bounding box
// around a label. The labels text renderer has a default setting of 1.4, which
// should be suitable for most fonts. Leave as null to use default. If tops of
// letters appear clipped, increase this. If bounding box seems too big, decrease.
// This is an issue only with the native font renderering capabilities of Mozilla
// 3.5 and Safari 4 since they do not provide a method to determine the font height.
this.pt2px = null;
this._elem;
this._ctx;
this._plotWidth;
this._plotHeight;
this._plotDimensions = {height:null, width:null};
$.extend(true, this, options);
if (options.angle == null && this.axis != 'xaxis' && this.axis != 'x2axis') {
this.angle = -90;
}
var ropts = {fontSize:this.fontSize, fontWeight:this.fontWeight, fontStretch:this.fontStretch, fillStyle:this.textColor, angle:this.getAngleRad(), fontFamily:this.fontFamily};
if (this.pt2px) {
ropts.pt2px = this.pt2px;
}
if (this.enableFontSupport) {
if ($.jqplot.support_canvas_text()) {
this._textRenderer = new $.jqplot.CanvasFontRenderer(ropts);
}
else {
this._textRenderer = new $.jqplot.CanvasTextRenderer(ropts);
}
}
else {
this._textRenderer = new $.jqplot.CanvasTextRenderer(ropts);
}
};
$.jqplot.CanvasAxisLabelRenderer.prototype.init = function(options) {
$.extend(true, this, options);
this._textRenderer.init({fontSize:this.fontSize, fontWeight:this.fontWeight, fontStretch:this.fontStretch, fillStyle:this.textColor, angle:this.getAngleRad(), fontFamily:this.fontFamily});
};
// return width along the x axis
// will check first to see if an element exists.
// if not, will return the computed text box width.
$.jqplot.CanvasAxisLabelRenderer.prototype.getWidth = function(ctx) {
if (this._elem) {
return this._elem.outerWidth(true);
}
else {
var tr = this._textRenderer;
var l = tr.getWidth(ctx);
var h = tr.getHeight(ctx);
var w = Math.abs(Math.sin(tr.angle)*h) + Math.abs(Math.cos(tr.angle)*l);
return w;
}
};
// return height along the y axis.
$.jqplot.CanvasAxisLabelRenderer.prototype.getHeight = function(ctx) {
if (this._elem) {
return this._elem.outerHeight(true);
}
else {
var tr = this._textRenderer;
var l = tr.getWidth(ctx);
var h = tr.getHeight(ctx);
var w = Math.abs(Math.cos(tr.angle)*h) + Math.abs(Math.sin(tr.angle)*l);
return w;
}
};
$.jqplot.CanvasAxisLabelRenderer.prototype.getAngleRad = function() {
var a = this.angle * Math.PI/180;
return a;
};
$.jqplot.CanvasAxisLabelRenderer.prototype.draw = function(ctx, plot) {
// Memory Leaks patch
if (this._elem) {
if ($.jqplot.use_excanvas && window.G_vmlCanvasManager.uninitElement !== undefined) {
window.G_vmlCanvasManager.uninitElement(this._elem.get(0));
}
this._elem.emptyForce();
this._elem = null;
}
// create a canvas here, but can't draw on it untill it is appended
// to dom for IE compatability.
var elem = plot.canvasManager.getCanvas();
this._textRenderer.setText(this.label, ctx);
var w = this.getWidth(ctx);
var h = this.getHeight(ctx);
elem.width = w;
elem.height = h;
elem.style.width = w;
elem.style.height = h;
elem = plot.canvasManager.initCanvas(elem);
this._elem = $(elem);
this._elem.css({ position: 'absolute'});
this._elem.addClass('jqplot-'+this.axis+'-label');
elem = null;
return this._elem;
};
$.jqplot.CanvasAxisLabelRenderer.prototype.pack = function() {
this._textRenderer.draw(this._elem.get(0).getContext("2d"), this.label);
};
})(jQuery);
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