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/**
* 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.MarkerRenderer
// The default jqPlot marker renderer, rendering the points on the line.
$.jqplot.MarkerRenderer = function(options){
// Group: Properties
// prop: show
// whether or not to show the marker.
this.show = true;
// prop: style
// One of diamond, circle, square, x, plus, dash, filledDiamond, filledCircle, filledSquare
this.style = 'filledCircle';
// prop: lineWidth
// size of the line for non-filled markers.
this.lineWidth = 2;
// prop: size
// Size of the marker (diameter or circle, length of edge of square, etc.)
this.size = 9.0;
// prop: color
// color of marker. Will be set to color of series by default on init.
this.color = '#666666';
// prop: shadow
// whether or not to draw a shadow on the line
this.shadow = true;
// prop: shadowAngle
// Shadow angle in degrees
this.shadowAngle = 45;
// prop: shadowOffset
// Shadow offset from line in pixels
this.shadowOffset = 1;
// prop: shadowDepth
// Number of times shadow is stroked, each stroke offset shadowOffset from the last.
this.shadowDepth = 3;
// prop: shadowAlpha
// Alpha channel transparency of shadow. 0 = transparent.
this.shadowAlpha = '0.07';
// prop: shadowRenderer
// Renderer that will draws the shadows on the marker.
this.shadowRenderer = new $.jqplot.ShadowRenderer();
// prop: shapeRenderer
// Renderer that will draw the marker.
this.shapeRenderer = new $.jqplot.ShapeRenderer();
$.extend(true, this, options);
};
$.jqplot.MarkerRenderer.prototype.init = function(options) {
$.extend(true, this, options);
var sdopt = {angle:this.shadowAngle, offset:this.shadowOffset, alpha:this.shadowAlpha, lineWidth:this.lineWidth, depth:this.shadowDepth, closePath:true};
if (this.style.indexOf('filled') != -1) {
sdopt.fill = true;
}
if (this.style.indexOf('ircle') != -1) {
sdopt.isarc = true;
sdopt.closePath = false;
}
this.shadowRenderer.init(sdopt);
var shopt = {fill:false, isarc:false, strokeStyle:this.color, fillStyle:this.color, lineWidth:this.lineWidth, closePath:true};
if (this.style.indexOf('filled') != -1) {
shopt.fill = true;
}
if (this.style.indexOf('ircle') != -1) {
shopt.isarc = true;
shopt.closePath = false;
}
this.shapeRenderer.init(shopt);
};
$.jqplot.MarkerRenderer.prototype.drawDiamond = function(x, y, ctx, fill, options) {
var stretch = 1.2;
var dx = this.size/2/stretch;
var dy = this.size/2*stretch;
var points = [[x-dx, y], [x, y+dy], [x+dx, y], [x, y-dy]];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points);
}
this.shapeRenderer.draw(ctx, points, options);
};
$.jqplot.MarkerRenderer.prototype.drawPlus = function(x, y, ctx, fill, options) {
var stretch = 1.0;
var dx = this.size/2*stretch;
var dy = this.size/2*stretch;
var points1 = [[x, y-dy], [x, y+dy]];
var points2 = [[x+dx, y], [x-dx, y]];
var opts = $.extend(true, {}, this.options, {closePath:false});
if (this.shadow) {
this.shadowRenderer.draw(ctx, points1, {closePath:false});
this.shadowRenderer.draw(ctx, points2, {closePath:false});
}
this.shapeRenderer.draw(ctx, points1, opts);
this.shapeRenderer.draw(ctx, points2, opts);
};
$.jqplot.MarkerRenderer.prototype.drawX = function(x, y, ctx, fill, options) {
var stretch = 1.0;
var dx = this.size/2*stretch;
var dy = this.size/2*stretch;
var opts = $.extend(true, {}, this.options, {closePath:false});
var points1 = [[x-dx, y-dy], [x+dx, y+dy]];
var points2 = [[x-dx, y+dy], [x+dx, y-dy]];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points1, {closePath:false});
this.shadowRenderer.draw(ctx, points2, {closePath:false});
}
this.shapeRenderer.draw(ctx, points1, opts);
this.shapeRenderer.draw(ctx, points2, opts);
};
$.jqplot.MarkerRenderer.prototype.drawDash = function(x, y, ctx, fill, options) {
var stretch = 1.0;
var dx = this.size/2*stretch;
var dy = this.size/2*stretch;
var points = [[x-dx, y], [x+dx, y]];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points);
}
this.shapeRenderer.draw(ctx, points, options);
};
$.jqplot.MarkerRenderer.prototype.drawLine = function(p1, p2, ctx, fill, options) {
var points = [p1, p2];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points);
}
this.shapeRenderer.draw(ctx, points, options);
};
$.jqplot.MarkerRenderer.prototype.drawSquare = function(x, y, ctx, fill, options) {
var stretch = 1.0;
var dx = this.size/2/stretch;
var dy = this.size/2*stretch;
var points = [[x-dx, y-dy], [x-dx, y+dy], [x+dx, y+dy], [x+dx, y-dy]];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points);
}
this.shapeRenderer.draw(ctx, points, options);
};
$.jqplot.MarkerRenderer.prototype.drawCircle = function(x, y, ctx, fill, options) {
var radius = this.size/2;
var end = 2*Math.PI;
var points = [x, y, radius, 0, end, true];
if (this.shadow) {
this.shadowRenderer.draw(ctx, points);
}
this.shapeRenderer.draw(ctx, points, options);
};
$.jqplot.MarkerRenderer.prototype.draw = function(x, y, ctx, options) {
options = options || {};
// hack here b/c shape renderer uses canvas based color style options
// and marker uses css style names.
if (options.show == null || options.show != false) {
if (options.color && !options.fillStyle) {
options.fillStyle = options.color;
}
if (options.color && !options.strokeStyle) {
options.strokeStyle = options.color;
}
switch (this.style) {
case 'diamond':
this.drawDiamond(x,y,ctx, false, options);
break;
case 'filledDiamond':
this.drawDiamond(x,y,ctx, true, options);
break;
case 'circle':
this.drawCircle(x,y,ctx, false, options);
break;
case 'filledCircle':
this.drawCircle(x,y,ctx, true, options);
break;
case 'square':
this.drawSquare(x,y,ctx, false, options);
break;
case 'filledSquare':
this.drawSquare(x,y,ctx, true, options);
break;
case 'x':
this.drawX(x,y,ctx, true, options);
break;
case 'plus':
this.drawPlus(x,y,ctx, true, options);
break;
case 'dash':
this.drawDash(x,y,ctx, true, options);
break;
case 'line':
this.drawLine(x, y, ctx, false, options);
break;
default:
this.drawDiamond(x,y,ctx, false, options);
break;
}
}
};
})(jQuery);
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