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bc63d7d | 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 | /**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: @VERSION
* Revision: @REVISION
*
* 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.shapeRenderer
// The default jqPlot shape renderer. Given a set of points will
// plot them and either stroke a line (fill = false) or fill them (fill = true).
// If a filled shape is desired, closePath = true must also be set to close
// the shape.
$.jqplot.ShapeRenderer = function(options){
this.lineWidth = 1.5;
// prop: linePattern
// line pattern 'dashed', 'dotted', 'solid', some combination
// of '-' and '.' characters such as '.-.' or a numerical array like
// [draw, skip, draw, skip, ...] such as [1, 10] to draw a dotted line,
// [1, 10, 20, 10] to draw a dot-dash line, and so on.
this.linePattern = 'solid';
// prop: lineJoin
// How line segments of the shadow are joined.
this.lineJoin = 'miter';
// prop: lineCap
// how ends of the shadow line are rendered.
this.lineCap = 'round';
// prop; closePath
// whether line path segment is closed upon itself.
this.closePath = false;
// prop: fill
// whether to fill the shape.
this.fill = false;
// prop: isarc
// whether the shadow is an arc or not.
this.isarc = false;
// prop: fillRect
// true to draw shape as a filled rectangle.
this.fillRect = false;
// prop: strokeRect
// true to draw shape as a stroked rectangle.
this.strokeRect = false;
// prop: clearRect
// true to cear a rectangle.
this.clearRect = false;
// prop: strokeStyle
// css color spec for the stoke style
this.strokeStyle = '#999999';
// prop: fillStyle
// css color spec for the fill style.
this.fillStyle = '#999999';
$.extend(true, this, options);
};
$.jqplot.ShapeRenderer.prototype.init = function(options) {
$.extend(true, this, options);
};
// function: draw
// draws the shape.
//
// ctx - canvas drawing context
// points - array of points for shapes or
// [x, y, width, height] for rectangles or
// [x, y, radius, start angle (rad), end angle (rad)] for circles and arcs.
$.jqplot.ShapeRenderer.prototype.draw = function(ctx, points, options) {
ctx.save();
var opts = (options != null) ? options : {};
var fill = (opts.fill != null) ? opts.fill : this.fill;
var closePath = (opts.closePath != null) ? opts.closePath : this.closePath;
var fillRect = (opts.fillRect != null) ? opts.fillRect : this.fillRect;
var strokeRect = (opts.strokeRect != null) ? opts.strokeRect : this.strokeRect;
var clearRect = (opts.clearRect != null) ? opts.clearRect : this.clearRect;
var isarc = (opts.isarc != null) ? opts.isarc : this.isarc;
var linePattern = (opts.linePattern != null) ? opts.linePattern : this.linePattern;
var ctxPattern = $.jqplot.LinePattern(ctx, linePattern);
ctx.lineWidth = opts.lineWidth || this.lineWidth;
ctx.lineJoin = opts.lineJoin || this.lineJoin;
ctx.lineCap = opts.lineCap || this.lineCap;
ctx.strokeStyle = (opts.strokeStyle || opts.color) || this.strokeStyle;
ctx.fillStyle = opts.fillStyle || this.fillStyle;
ctx.beginPath();
if (isarc) {
ctx.arc(points[0], points[1], points[2], points[3], points[4], true);
if (closePath) {
ctx.closePath();
}
if (fill) {
ctx.fill();
}
else {
ctx.stroke();
}
ctx.restore();
return;
}
else if (clearRect) {
ctx.clearRect(points[0], points[1], points[2], points[3]);
ctx.restore();
return;
}
else if (fillRect || strokeRect) {
if (fillRect) {
ctx.fillRect(points[0], points[1], points[2], points[3]);
}
if (strokeRect) {
ctx.strokeRect(points[0], points[1], points[2], points[3]);
ctx.restore();
return;
}
}
else if (points && points.length){
var move = true;
for (var i=0; i<points.length; i++) {
// skip to the first non-null point and move to it.
if (points[i][0] != null && points[i][1] != null) {
if (move) {
ctxPattern.moveTo(points[i][0], points[i][1]);
move = false;
}
else {
ctxPattern.lineTo(points[i][0], points[i][1]);
}
}
else {
move = true;
}
}
if (closePath) {
ctxPattern.closePath();
}
if (fill) {
ctx.fill();
}
else {
ctx.stroke();
}
}
ctx.restore();
};
})(jQuery); |