/*
* Graphics
* Visit http://createjs.com/ for documentation, updates and examples.
*
* Copyright (c) 2010 gskinner.com, inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* @module EaselJS
*/
// namespace:
this.createjs = this.createjs||{};
(function() {
"use strict";
// constructor:
/**
* The Graphics class exposes an easy to use API for generating vector drawing instructions and drawing them to a
* specified context. Note that you can use Graphics without any dependency on the EaselJS framework by calling {{#crossLink "Graphics/draw"}}{{/crossLink}}
* directly, or it can be used with the {{#crossLink "Shape"}}{{/crossLink}} object to draw vector graphics within the
* context of an EaselJS display list.
*
* There are two approaches to working with Graphics object: calling methods on a Graphics instance (the "Graphics API"), or
* instantiating Graphics command objects and adding them to the graphics queue via {{#crossLink "Graphics/append"}}{{/crossLink}}.
* The former abstracts the latter, simplifying beginning and ending paths, fills, and strokes.
*
* var g = new createjs.Graphics();
* g.setStrokeStyle(1);
* g.beginStroke("#000000");
* g.beginFill("red");
* g.drawCircle(0,0,30);
*
* All drawing methods in Graphics return the Graphics instance, so they can be chained together. For example,
* the following line of code would generate the instructions to draw a rectangle with a red stroke and blue fill:
*
* myGraphics.beginStroke("red").beginFill("blue").drawRect(20, 20, 100, 50);
*
* Each graphics API call generates a command object (see below). The last command to be created can be accessed via
* {{#crossLink "Graphics/command:property"}}{{/crossLink}}:
*
* var fillCommand = myGraphics.beginFill("red").command;
* // ... later, update the fill style/color:
* fillCommand.style = "blue";
* // or change it to a bitmap fill:
* fillCommand.bitmap(myImage);
*
* For more direct control of rendering, you can instantiate and append command objects to the graphics queue directly. In this case, you
* need to manage path creation manually, and ensure that fill/stroke is applied to a defined path:
*
* // start a new path. Graphics.beginCmd is a reusable BeginPath instance:
* myGraphics.append(createjs.Graphics.beginCmd);
* // we need to define the path before applying the fill:
* var circle = new createjs.Graphics.Circle(0,0,30);
* myGraphics.append(circle);
* // fill the path we just defined:
* var fill = new createjs.Graphics.Fill("red");
* myGraphics.append(fill);
*
* These approaches can be used together, for example to insert a custom command:
*
* myGraphics.beginFill("red");
* var customCommand = new CustomSpiralCommand(etc);
* myGraphics.append(customCommand);
* myGraphics.beginFill("blue");
* myGraphics.drawCircle(0, 0, 30);
*
* See {{#crossLink "Graphics/append"}}{{/crossLink}} for more info on creating custom commands.
*
* <h4>Tiny API</h4>
* The Graphics class also includes a "tiny API", which is one or two-letter methods that are shortcuts for all of the
* Graphics methods. These methods are great for creating compact instructions, and is used by the Toolkit for CreateJS
* to generate readable code. All tiny methods are marked as protected, so you can view them by enabling protected
* descriptions in the docs.
*
* <table>
* <tr><td><b>Tiny</b></td><td><b>Method</b></td><td><b>Tiny</b></td><td><b>Method</b></td></tr>
* <tr><td>mt</td><td>{{#crossLink "Graphics/moveTo"}}{{/crossLink}} </td>
* <td>lt</td> <td>{{#crossLink "Graphics/lineTo"}}{{/crossLink}}</td></tr>
* <tr><td>a/at</td><td>{{#crossLink "Graphics/arc"}}{{/crossLink}} / {{#crossLink "Graphics/arcTo"}}{{/crossLink}} </td>
* <td>bt</td><td>{{#crossLink "Graphics/bezierCurveTo"}}{{/crossLink}} </td></tr>
* <tr><td>qt</td><td>{{#crossLink "Graphics/quadraticCurveTo"}}{{/crossLink}} (also curveTo)</td>
* <td>r</td><td>{{#crossLink "Graphics/rect"}}{{/crossLink}} </td></tr>
* <tr><td>cp</td><td>{{#crossLink "Graphics/closePath"}}{{/crossLink}} </td>
* <td>c</td><td>{{#crossLink "Graphics/clear"}}{{/crossLink}} </td></tr>
* <tr><td>f</td><td>{{#crossLink "Graphics/beginFill"}}{{/crossLink}} </td>
* <td>lf</td><td>{{#crossLink "Graphics/beginLinearGradientFill"}}{{/crossLink}} </td></tr>
* <tr><td>rf</td><td>{{#crossLink "Graphics/beginRadialGradientFill"}}{{/crossLink}} </td>
* <td>bf</td><td>{{#crossLink "Graphics/beginBitmapFill"}}{{/crossLink}} </td></tr>
* <tr><td>ef</td><td>{{#crossLink "Graphics/endFill"}}{{/crossLink}} </td>
* <td>ss / sd</td><td>{{#crossLink "Graphics/setStrokeStyle"}}{{/crossLink}} / {{#crossLink "Graphics/setStrokeDash"}}{{/crossLink}} </td></tr>
* <tr><td>s</td><td>{{#crossLink "Graphics/beginStroke"}}{{/crossLink}} </td>
* <td>ls</td><td>{{#crossLink "Graphics/beginLinearGradientStroke"}}{{/crossLink}} </td></tr>
* <tr><td>rs</td><td>{{#crossLink "Graphics/beginRadialGradientStroke"}}{{/crossLink}} </td>
* <td>bs</td><td>{{#crossLink "Graphics/beginBitmapStroke"}}{{/crossLink}} </td></tr>
* <tr><td>es</td><td>{{#crossLink "Graphics/endStroke"}}{{/crossLink}} </td>
* <td>dr</td><td>{{#crossLink "Graphics/drawRect"}}{{/crossLink}} </td></tr>
* <tr><td>rr</td><td>{{#crossLink "Graphics/drawRoundRect"}}{{/crossLink}} </td>
* <td>rc</td><td>{{#crossLink "Graphics/drawRoundRectComplex"}}{{/crossLink}} </td></tr>
* <tr><td>dc</td><td>{{#crossLink "Graphics/drawCircle"}}{{/crossLink}} </td>
* <td>de</td><td>{{#crossLink "Graphics/drawEllipse"}}{{/crossLink}} </td></tr>
* <tr><td>dp</td><td>{{#crossLink "Graphics/drawPolyStar"}}{{/crossLink}} </td>
* <td>p</td><td>{{#crossLink "Graphics/decodePath"}}{{/crossLink}} </td></tr>
* </table>
*
* Here is the above example, using the tiny API instead.
*
* myGraphics.s("red").f("blue").r(20, 20, 100, 50);
*
* @class Graphics
* @constructor
**/
function Graphics() {
// public properties
/**
* Holds a reference to the last command that was created or appended. For example, you could retain a reference
* to a Fill command in order to dynamically update the color later by using:
*
* var myFill = myGraphics.beginFill("red").command;
* // update color later:
* myFill.style = "yellow";
*
* @property command
* @type Object
**/
this.command = null;
// private properties
/**
* @property _stroke
* @protected
* @type {Stroke}
**/
this._stroke = null;
/**
* @property _strokeStyle
* @protected
* @type {StrokeStyle}
**/
this._strokeStyle = null;
/**
* @property _oldStrokeStyle
* @protected
* @type {StrokeStyle}
**/
this._oldStrokeStyle = null;
/**
* @property _strokeDash
* @protected
* @type {StrokeDash}
**/
this._strokeDash = null;
/**
* @property _oldStrokeDash
* @protected
* @type {StrokeDash}
**/
this._oldStrokeDash = null;
/**
* @property _strokeIgnoreScale
* @protected
* @type Boolean
**/
this._strokeIgnoreScale = false;
/**
* @property _fill
* @protected
* @type {Fill}
**/
this._fill = null;
/**
* @property _instructions
* @protected
* @type {Array}
**/
this._instructions = [];
/**
* Indicates the last instruction index that was committed.
* @property _commitIndex
* @protected
* @type {Number}
**/
this._commitIndex = 0;
/**
* Uncommitted instructions.
* @property _activeInstructions
* @protected
* @type {Array}
**/
this._activeInstructions = [];
/**
* This indicates that there have been changes to the activeInstruction list since the last updateInstructions call.
* @property _dirty
* @protected
* @type {Boolean}
* @default false
**/
this._dirty = false;
/**
* Index to draw from if a store operation has happened.
* @property _storeIndex
* @protected
* @type {Number}
* @default 0
**/
this._storeIndex = 0;
// setup:
this.clear();
}
var p = Graphics.prototype;
var G = Graphics; // shortcut
/**
* <strong>REMOVED</strong>. Removed in favor of using `MySuperClass_constructor`.
* See {{#crossLink "Utility Methods/extend"}}{{/crossLink}} and {{#crossLink "Utility Methods/promote"}}{{/crossLink}}
* for details.
*
* There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance.
*
* @method initialize
* @protected
* @deprecated
*/
// p.initialize = function() {}; // searchable for devs wondering where it is.
// static public methods:
/**
* Returns a CSS compatible color string based on the specified RGB numeric color values in the format
* "rgba(255,255,255,1.0)", or if alpha is null then in the format "rgb(255,255,255)". For example,
*
* createjs.Graphics.getRGB(50, 100, 150, 0.5);
* // Returns "rgba(50,100,150,0.5)"
*
* It also supports passing a single hex color value as the first param, and an optional alpha value as the second
* param. For example,
*
* createjs.Graphics.getRGB(0xFF00FF, 0.2);
* // Returns "rgba(255,0,255,0.2)"
*
* @method getRGB
* @static
* @param {Number} r The red component for the color, between 0 and 0xFF (255).
* @param {Number} g The green component for the color, between 0 and 0xFF (255).
* @param {Number} b The blue component for the color, between 0 and 0xFF (255).
* @param {Number} [alpha] The alpha component for the color where 0 is fully transparent and 1 is fully opaque.
* @return {String} A CSS compatible color string based on the specified RGB numeric color values in the format
* "rgba(255,255,255,1.0)", or if alpha is null then in the format "rgb(255,255,255)".
**/
Graphics.getRGB = function(r, g, b, alpha) {
if (r != null && b == null) {
alpha = g;
b = r&0xFF;
g = r>>8&0xFF;
r = r>>16&0xFF;
}
if (alpha == null) {
return "rgb("+r+","+g+","+b+")";
} else {
return "rgba("+r+","+g+","+b+","+alpha+")";
}
};
/**
* Returns a CSS compatible color string based on the specified HSL numeric color values in the format "hsla(360,100,100,1.0)",
* or if alpha is null then in the format "hsl(360,100,100)".
*
* createjs.Graphics.getHSL(150, 100, 70);
* // Returns "hsl(150,100,70)"
*
* @method getHSL
* @static
* @param {Number} hue The hue component for the color, between 0 and 360.
* @param {Number} saturation The saturation component for the color, between 0 and 100.
* @param {Number} lightness The lightness component for the color, between 0 and 100.
* @param {Number} [alpha] The alpha component for the color where 0 is fully transparent and 1 is fully opaque.
* @return {String} A CSS compatible color string based on the specified HSL numeric color values in the format
* "hsla(360,100,100,1.0)", or if alpha is null then in the format "hsl(360,100,100)".
**/
Graphics.getHSL = function(hue, saturation, lightness, alpha) {
if (alpha == null) {
return "hsl("+(hue%360)+","+saturation+"%,"+lightness+"%)";
} else {
return "hsla("+(hue%360)+","+saturation+"%,"+lightness+"%,"+alpha+")";
}
};
// static properties:
/**
* A reusable instance of {{#crossLink "Graphics/BeginPath"}}{{/crossLink}} to avoid
* unnecessary instantiation.
* @property beginCmd
* @type {Graphics.BeginPath}
* @static
**/
// defined at the bottom of this file.
/**
* Map of Base64 characters to values. Used by {{#crossLink "Graphics/decodePath"}}{{/crossLink}}.
* @property BASE_64
* @static
* @final
* @readonly
* @type {Object}
**/
Graphics.BASE_64 = {"A":0,"B":1,"C":2,"D":3,"E":4,"F":5,"G":6,"H":7,"I":8,"J":9,"K":10,"L":11,"M":12,"N":13,"O":14,"P":15,"Q":16,"R":17,"S":18,"T":19,"U":20,"V":21,"W":22,"X":23,"Y":24,"Z":25,"a":26,"b":27,"c":28,"d":29,"e":30,"f":31,"g":32,"h":33,"i":34,"j":35,"k":36,"l":37,"m":38,"n":39,"o":40,"p":41,"q":42,"r":43,"s":44,"t":45,"u":46,"v":47,"w":48,"x":49,"y":50,"z":51,"0":52,"1":53,"2":54,"3":55,"4":56,"5":57,"6":58,"7":59,"8":60,"9":61,"+":62,"/":63};
/**
* Maps numeric values for the caps parameter of {{#crossLink "Graphics/setStrokeStyle"}}{{/crossLink}} to
* corresponding string values. This is primarily for use with the tiny API. The mappings are as follows: 0 to
* "butt", 1 to "round", and 2 to "square".
* For example, to set the line caps to "square":
*
* myGraphics.ss(16, 2);
*
* @property STROKE_CAPS_MAP
* @static
* @final
* @readonly
* @type {Array}
**/
Graphics.STROKE_CAPS_MAP = ["butt", "round", "square"];
/**
* Maps numeric values for the joints parameter of {{#crossLink "Graphics/setStrokeStyle"}}{{/crossLink}} to
* corresponding string values. This is primarily for use with the tiny API. The mappings are as follows: 0 to
* "miter", 1 to "round", and 2 to "bevel".
* For example, to set the line joints to "bevel":
*
* myGraphics.ss(16, 0, 2);
*
* @property STROKE_JOINTS_MAP
* @static
* @final
* @readonly
* @type {Array}
**/
Graphics.STROKE_JOINTS_MAP = ["miter", "round", "bevel"];
/**
* @property _ctx
* @static
* @protected
* @type {CanvasRenderingContext2D}
**/
var canvas = (createjs.createCanvas?createjs.createCanvas():document.createElement("canvas"));
if (canvas.getContext) {
Graphics._ctx = canvas.getContext("2d");
canvas.width = canvas.height = 1;
}
// getter / setters:
/**
* Use the {{#crossLink "Graphics/instructions:property"}}{{/crossLink}} property instead.
* @method getInstructions
* @return {Array}
* @deprecated
**/
p.getInstructions = function() {
this._updateInstructions();
return this._instructions;
};
/**
* Returns the graphics instructions array. Each entry is a graphics command object (ex. Graphics.Fill, Graphics.Rect)
* Modifying the returned array directly is not recommended, and is likely to result in unexpected behaviour.
*
* This property is mainly intended for introspection of the instructions (ex. for graphics export).
* @property instructions
* @type {Array}
* @readonly
**/
try {
Object.defineProperties(p, {
instructions: { get: p.getInstructions }
});
} catch (e) {}
// public methods:
/**
* Returns true if this Graphics instance has no drawing commands.
* @method isEmpty
* @return {Boolean} Returns true if this Graphics instance has no drawing commands.
**/
p.isEmpty = function() {
return !(this._instructions.length || this._activeInstructions.length);
};
/**
* Draws the display object into the specified context ignoring its visible, alpha, shadow, and transform.
* Returns true if the draw was handled (useful for overriding functionality).
*
* NOTE: This method is mainly for internal use, though it may be useful for advanced uses.
* @method draw
* @param {CanvasRenderingContext2D} ctx The canvas 2D context object to draw into.
* @param {Object} data Optional data that is passed to graphics command exec methods. When called from a Shape instance, the shape passes itself as the data parameter. This can be used by custom graphic commands to insert contextual data.
**/
p.draw = function(ctx, data) {
this._updateInstructions();
var instr = this._instructions;
for (var i=this._storeIndex, l=instr.length; i<l; i++) {
instr[i].exec(ctx, data);
}
};
/**
* Draws only the path described for this Graphics instance, skipping any non-path instructions, including fill and
* stroke descriptions. Used for <code>DisplayObject.mask</code> to draw the clipping path, for example.
*
* NOTE: This method is mainly for internal use, though it may be useful for advanced uses.
* @method drawAsPath
* @param {CanvasRenderingContext2D} ctx The canvas 2D context object to draw into.
**/
p.drawAsPath = function(ctx) {
this._updateInstructions();
var instr, instrs = this._instructions;
for (var i=this._storeIndex, l=instrs.length; i<l; i++) {
// the first command is always a beginPath command.
if ((instr = instrs[i]).path !== false) { instr.exec(ctx); }
}
};
// public methods that map directly to context 2D calls:
/**
* Moves the drawing point to the specified position. A tiny API method "mt" also exists.
* @method moveTo
* @param {Number} x The x coordinate the drawing point should move to.
* @param {Number} y The y coordinate the drawing point should move to.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls).
* @chainable
**/
p.moveTo = function(x, y) {
return this.append(new G.MoveTo(x,y), true);
};
/**
* Draws a line from the current drawing point to the specified position, which become the new current drawing
* point. Note that you *must* call {{#crossLink "Graphics/moveTo"}}{{/crossLink}} before the first `lineTo()`.
* A tiny API method "lt" also exists.
*
* For detailed information, read the
* <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#complex-shapes-(paths)">
* whatwg spec</a>.
* @method lineTo
* @param {Number} x The x coordinate the drawing point should draw to.
* @param {Number} y The y coordinate the drawing point should draw to.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.lineTo = function(x, y) {
return this.append(new G.LineTo(x,y));
};
/**
* Draws an arc with the specified control points and radius. For detailed information, read the
* <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-arcto">
* whatwg spec</a>. A tiny API method "at" also exists.
* @method arcTo
* @param {Number} x1
* @param {Number} y1
* @param {Number} x2
* @param {Number} y2
* @param {Number} radius
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.arcTo = function(x1, y1, x2, y2, radius) {
return this.append(new G.ArcTo(x1, y1, x2, y2, radius));
};
/**
* Draws an arc defined by the radius, startAngle and endAngle arguments, centered at the position (x, y). For
* example, to draw a full circle with a radius of 20 centered at (100, 100):
*
* arc(100, 100, 20, 0, Math.PI*2);
*
* For detailed information, read the
* <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-arc">whatwg spec</a>.
* A tiny API method "a" also exists.
* @method arc
* @param {Number} x
* @param {Number} y
* @param {Number} radius
* @param {Number} startAngle Measured in radians.
* @param {Number} endAngle Measured in radians.
* @param {Boolean} anticlockwise
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.arc = function(x, y, radius, startAngle, endAngle, anticlockwise) {
return this.append(new G.Arc(x, y, radius, startAngle, endAngle, anticlockwise));
};
/**
* Draws a quadratic curve from the current drawing point to (x, y) using the control point (cpx, cpy). For detailed
* information, read the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-quadraticcurveto">
* whatwg spec</a>. A tiny API method "qt" also exists.
* @method quadraticCurveTo
* @param {Number} cpx
* @param {Number} cpy
* @param {Number} x
* @param {Number} y
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.quadraticCurveTo = function(cpx, cpy, x, y) {
return this.append(new G.QuadraticCurveTo(cpx, cpy, x, y));
};
/**
* Draws a bezier curve from the current drawing point to (x, y) using the control points (cp1x, cp1y) and (cp2x,
* cp2y). For detailed information, read the
* <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-beziercurveto">
* whatwg spec</a>. A tiny API method "bt" also exists.
* @method bezierCurveTo
* @param {Number} cp1x
* @param {Number} cp1y
* @param {Number} cp2x
* @param {Number} cp2y
* @param {Number} x
* @param {Number} y
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.bezierCurveTo = function(cp1x, cp1y, cp2x, cp2y, x, y) {
return this.append(new G.BezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y));
};
/**
* Draws a rectangle at (x, y) with the specified width and height using the current fill and/or stroke.
* For detailed information, read the
* <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-rect">
* whatwg spec</a>. A tiny API method "r" also exists.
* @method rect
* @param {Number} x
* @param {Number} y
* @param {Number} w Width of the rectangle
* @param {Number} h Height of the rectangle
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.rect = function(x, y, w, h) {
return this.append(new G.Rect(x, y, w, h));
};
/**
* Closes the current path, effectively drawing a line from the current drawing point to the first drawing point specified
* since the fill or stroke was last set. A tiny API method "cp" also exists.
* @method closePath
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.closePath = function() {
return this._activeInstructions.length ? this.append(new G.ClosePath()) : this;
};
// public methods that roughly map to Flash graphics APIs:
/**
* Clears all drawing instructions, effectively resetting this Graphics instance. Any line and fill styles will need
* to be redefined to draw shapes following a clear call. A tiny API method "c" also exists.
* @method clear
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.clear = function() {
this._instructions.length = this._activeInstructions.length = this._commitIndex = 0;
this._strokeStyle = this._oldStrokeStyle = this._stroke = this._fill = this._strokeDash = this._oldStrokeDash = null;
this._dirty = this._strokeIgnoreScale = false;
return this;
};
/**
* Begins a fill with the specified color. This ends the current sub-path. A tiny API method "f" also exists.
* @method beginFill
* @param {String} color A CSS compatible color value (ex. "red", "#FF0000", or "rgba(255,0,0,0.5)"). Setting to
* null will result in no fill.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginFill = function(color) {
return this._setFill(color ? new G.Fill(color) : null);
};
/**
* Begins a linear gradient fill defined by the line (x0, y0) to (x1, y1). This ends the current sub-path. For
* example, the following code defines a black to white vertical gradient ranging from 20px to 120px, and draws a
* square to display it:
*
* myGraphics.beginLinearGradientFill(["#000","#FFF"], [0, 1], 0, 20, 0, 120).drawRect(20, 20, 120, 120);
*
* A tiny API method "lf" also exists.
* @method beginLinearGradientFill
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define a gradient
* drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1, 0.9] would draw
* the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} y0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} x1 The position of the second point defining the line that defines the gradient direction and size.
* @param {Number} y1 The position of the second point defining the line that defines the gradient direction and size.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginLinearGradientFill = function(colors, ratios, x0, y0, x1, y1) {
return this._setFill(new G.Fill().linearGradient(colors, ratios, x0, y0, x1, y1));
};
/**
* Begins a radial gradient fill. This ends the current sub-path. For example, the following code defines a red to
* blue radial gradient centered at (100, 100), with a radius of 50, and draws a circle to display it:
*
* myGraphics.beginRadialGradientFill(["#F00","#00F"], [0, 1], 100, 100, 0, 100, 100, 50).drawCircle(100, 100, 50);
*
* A tiny API method "rf" also exists.
* @method beginRadialGradientFill
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 Center position of the inner circle that defines the gradient.
* @param {Number} y0 Center position of the inner circle that defines the gradient.
* @param {Number} r0 Radius of the inner circle that defines the gradient.
* @param {Number} x1 Center position of the outer circle that defines the gradient.
* @param {Number} y1 Center position of the outer circle that defines the gradient.
* @param {Number} r1 Radius of the outer circle that defines the gradient.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginRadialGradientFill = function(colors, ratios, x0, y0, r0, x1, y1, r1) {
return this._setFill(new G.Fill().radialGradient(colors, ratios, x0, y0, r0, x1, y1, r1));
};
/**
* Begins a pattern fill using the specified image. This ends the current sub-path. A tiny API method "bf" also
* exists.
* @method beginBitmapFill
* @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video object to use
* as the pattern. Must be loaded prior to creating a bitmap fill, or the fill will be empty.
* @param {String} repetition Optional. Indicates whether to repeat the image in the fill area. One of "repeat",
* "repeat-x", "repeat-y", or "no-repeat". Defaults to "repeat". Note that Firefox does not support "repeat-x" or
* "repeat-y" (latest tests were in FF 20.0), and will default to "repeat".
* @param {Matrix2D} matrix Optional. Specifies a transformation matrix for the bitmap fill. This transformation
* will be applied relative to the parent transform.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginBitmapFill = function(image, repetition, matrix) {
return this._setFill(new G.Fill(null,matrix).bitmap(image, repetition));
};
/**
* Ends the current sub-path, and begins a new one with no fill. Functionally identical to <code>beginFill(null)</code>.
* A tiny API method "ef" also exists.
* @method endFill
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.endFill = function() {
return this.beginFill();
};
/**
* Sets the stroke style. Like all drawing methods, this can be chained, so you can define
* the stroke style and color in a single line of code like so:
*
* myGraphics.setStrokeStyle(8,"round").beginStroke("#F00");
*
* A tiny API method "ss" also exists.
* @method setStrokeStyle
* @param {Number} thickness The width of the stroke.
* @param {String | Number} [caps=0] Indicates the type of caps to use at the end of lines. One of butt,
* round, or square. Defaults to "butt". Also accepts the values 0 (butt), 1 (round), and 2 (square) for use with
* the tiny API.
* @param {String | Number} [joints=0] Specifies the type of joints that should be used where two lines meet.
* One of bevel, round, or miter. Defaults to "miter". Also accepts the values 0 (miter), 1 (round), and 2 (bevel)
* for use with the tiny API.
* @param {Number} [miterLimit=10] If joints is set to "miter", then you can specify a miter limit ratio which
* controls at what point a mitered joint will be clipped.
* @param {Boolean} [ignoreScale=false] If true, the stroke will be drawn at the specified thickness regardless
* of active transformations.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.setStrokeStyle = function(thickness, caps, joints, miterLimit, ignoreScale) {
this._updateInstructions(true);
this._strokeStyle = this.command = new G.StrokeStyle(thickness, caps, joints, miterLimit, ignoreScale);
// ignoreScale lives on Stroke, not StrokeStyle, so we do a little trickery:
if (this._stroke) { this._stroke.ignoreScale = ignoreScale; }
this._strokeIgnoreScale = ignoreScale;
return this;
};
/**
* Sets or clears the stroke dash pattern.
*
* myGraphics.setStrokeDash([20, 10], 0);
*
* A tiny API method `sd` also exists.
* @method setStrokeDash
* @param {Array} [segments] An array specifying the dash pattern, alternating between line and gap.
* For example, `[20,10]` would create a pattern of 20 pixel lines with 10 pixel gaps between them.
* Passing null or an empty array will clear the existing stroke dash.
* @param {Number} [offset=0] The offset of the dash pattern. For example, you could increment this value to create a "marching ants" effect.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.setStrokeDash = function(segments, offset) {
this._updateInstructions(true);
this._strokeDash = this.command = new G.StrokeDash(segments, offset);
return this;
};
/**
* Begins a stroke with the specified color. This ends the current sub-path. A tiny API method "s" also exists.
* @method beginStroke
* @param {String} color A CSS compatible color value (ex. "#FF0000", "red", or "rgba(255,0,0,0.5)"). Setting to
* null will result in no stroke.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginStroke = function(color) {
return this._setStroke(color ? new G.Stroke(color) : null);
};
/**
* Begins a linear gradient stroke defined by the line (x0, y0) to (x1, y1). This ends the current sub-path. For
* example, the following code defines a black to white vertical gradient ranging from 20px to 120px, and draws a
* square to display it:
*
* myGraphics.setStrokeStyle(10).
* beginLinearGradientStroke(["#000","#FFF"], [0, 1], 0, 20, 0, 120).drawRect(20, 20, 120, 120);
*
* A tiny API method "ls" also exists.
* @method beginLinearGradientStroke
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} y0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} x1 The position of the second point defining the line that defines the gradient direction and size.
* @param {Number} y1 The position of the second point defining the line that defines the gradient direction and size.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginLinearGradientStroke = function(colors, ratios, x0, y0, x1, y1) {
return this._setStroke(new G.Stroke().linearGradient(colors, ratios, x0, y0, x1, y1));
};
/**
* Begins a radial gradient stroke. This ends the current sub-path. For example, the following code defines a red to
* blue radial gradient centered at (100, 100), with a radius of 50, and draws a rectangle to display it:
*
* myGraphics.setStrokeStyle(10)
* .beginRadialGradientStroke(["#F00","#00F"], [0, 1], 100, 100, 0, 100, 100, 50)
* .drawRect(50, 90, 150, 110);
*
* A tiny API method "rs" also exists.
* @method beginRadialGradientStroke
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%, then draw the second color
* to 100%.
* @param {Number} x0 Center position of the inner circle that defines the gradient.
* @param {Number} y0 Center position of the inner circle that defines the gradient.
* @param {Number} r0 Radius of the inner circle that defines the gradient.
* @param {Number} x1 Center position of the outer circle that defines the gradient.
* @param {Number} y1 Center position of the outer circle that defines the gradient.
* @param {Number} r1 Radius of the outer circle that defines the gradient.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginRadialGradientStroke = function(colors, ratios, x0, y0, r0, x1, y1, r1) {
return this._setStroke(new G.Stroke().radialGradient(colors, ratios, x0, y0, r0, x1, y1, r1));
};
/**
* Begins a pattern fill using the specified image. This ends the current sub-path. Note that unlike bitmap fills,
* strokes do not currently support a matrix parameter due to limitations in the canvas API. A tiny API method "bs"
* also exists.
* @method beginBitmapStroke
* @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video object to use
* as the pattern. Must be loaded prior to creating a bitmap fill, or the fill will be empty.
* @param {String} [repetition=repeat] Optional. Indicates whether to repeat the image in the fill area. One of
* "repeat", "repeat-x", "repeat-y", or "no-repeat". Defaults to "repeat".
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.beginBitmapStroke = function(image, repetition) {
// NOTE: matrix is not supported for stroke because transforms on strokes also affect the drawn stroke width.
return this._setStroke(new G.Stroke().bitmap(image, repetition));
};
/**
* Ends the current sub-path, and begins a new one with no stroke. Functionally identical to <code>beginStroke(null)</code>.
* A tiny API method "es" also exists.
* @method endStroke
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.endStroke = function() {
return this.beginStroke();
};
/**
* Maps the familiar ActionScript <code>curveTo()</code> method to the functionally similar {{#crossLink "Graphics/quadraticCurveTo"}}{{/crossLink}}
* method.
* @method quadraticCurveTo
* @param {Number} cpx
* @param {Number} cpy
* @param {Number} x
* @param {Number} y
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.curveTo = p.quadraticCurveTo;
/**
*
* Maps the familiar ActionScript <code>drawRect()</code> method to the functionally similar {{#crossLink "Graphics/rect"}}{{/crossLink}}
* method.
* @method drawRect
* @param {Number} x
* @param {Number} y
* @param {Number} w Width of the rectangle
* @param {Number} h Height of the rectangle
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawRect = p.rect;
/**
* Draws a rounded rectangle with all corners with the specified radius.
* @method drawRoundRect
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
* @param {Number} radius Corner radius.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawRoundRect = function(x, y, w, h, radius) {
return this.drawRoundRectComplex(x, y, w, h, radius, radius, radius, radius);
};
/**
* Draws a rounded rectangle with different corner radii. Supports positive and negative corner radii. A tiny API
* method "rc" also exists.
* @method drawRoundRectComplex
* @param {Number} x The horizontal coordinate to draw the round rect.
* @param {Number} y The vertical coordinate to draw the round rect.
* @param {Number} w The width of the round rect.
* @param {Number} h The height of the round rect.
* @param {Number} radiusTL Top left corner radius.
* @param {Number} radiusTR Top right corner radius.
* @param {Number} radiusBR Bottom right corner radius.
* @param {Number} radiusBL Bottom left corner radius.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawRoundRectComplex = function(x, y, w, h, radiusTL, radiusTR, radiusBR, radiusBL) {
return this.append(new G.RoundRect(x, y, w, h, radiusTL, radiusTR, radiusBR, radiusBL));
};
/**
* Draws a circle with the specified radius at (x, y).
*
* var g = new createjs.Graphics();
* g.setStrokeStyle(1);
* g.beginStroke(createjs.Graphics.getRGB(0,0,0));
* g.beginFill(createjs.Graphics.getRGB(255,0,0));
* g.drawCircle(0,0,3);
*
* var s = new createjs.Shape(g);
* s.x = 100;
* s.y = 100;
*
* stage.addChild(s);
* stage.update();
*
* A tiny API method "dc" also exists.
* @method drawCircle
* @param {Number} x x coordinate center point of circle.
* @param {Number} y y coordinate center point of circle.
* @param {Number} radius Radius of circle.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawCircle = function(x, y, radius) {
return this.append(new G.Circle(x, y, radius));
};
/**
* Draws an ellipse (oval) with a specified width (w) and height (h). Similar to {{#crossLink "Graphics/drawCircle"}}{{/crossLink}},
* except the width and height can be different. A tiny API method "de" also exists.
* @method drawEllipse
* @param {Number} x The left coordinate point of the ellipse. Note that this is different from {{#crossLink "Graphics/drawCircle"}}{{/crossLink}}
* which draws from center.
* @param {Number} y The top coordinate point of the ellipse. Note that this is different from {{#crossLink "Graphics/drawCircle"}}{{/crossLink}}
* which draws from the center.
* @param {Number} w The height (horizontal diameter) of the ellipse. The horizontal radius will be half of this
* number.
* @param {Number} h The width (vertical diameter) of the ellipse. The vertical radius will be half of this number.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawEllipse = function(x, y, w, h) {
return this.append(new G.Ellipse(x, y, w, h));
};
/**
* Draws a star if pointSize is greater than 0, or a regular polygon if pointSize is 0 with the specified number of
* points. For example, the following code will draw a familiar 5 pointed star shape centered at 100, 100 and with a
* radius of 50:
*
* myGraphics.beginFill("#FF0").drawPolyStar(100, 100, 50, 5, 0.6, -90);
* // Note: -90 makes the first point vertical
*
* A tiny API method "dp" also exists.
*
* @method drawPolyStar
* @param {Number} x Position of the center of the shape.
* @param {Number} y Position of the center of the shape.
* @param {Number} radius The outer radius of the shape.
* @param {Number} sides The number of points on the star or sides on the polygon.
* @param {Number} pointSize The depth or "pointy-ness" of the star points. A pointSize of 0 will draw a regular
* polygon (no points), a pointSize of 1 will draw nothing because the points are infinitely pointy.
* @param {Number} angle The angle of the first point / corner. For example a value of 0 will draw the first point
* directly to the right of the center.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.drawPolyStar = function(x, y, radius, sides, pointSize, angle) {
return this.append(new G.PolyStar(x, y, radius, sides, pointSize, angle));
};
// TODO: deprecated.
/**
* Removed in favour of using custom command objects with {{#crossLink "Graphics/append"}}{{/crossLink}}.
* @method inject
* @deprecated
**/
/**
* Appends a graphics command object to the graphics queue. Command objects expose an "exec" method
* that accepts two parameters: the Context2D to operate on, and an arbitrary data object passed into
* {{#crossLink "Graphics/draw"}}{{/crossLink}}. The latter will usually be the Shape instance that called draw.
*
* This method is used internally by Graphics methods, such as drawCircle, but can also be used directly to insert
* built-in or custom graphics commands. For example:
*
* // attach data to our shape, so we can access it during the draw:
* myShape.color = "red";
*
* // append a Circle command object:
* myShape.graphics.append(new createjs.Graphics.Circle(50, 50, 30));
*
* // append a custom command object with an exec method that sets the fill style
* // based on the shape's data, and then fills the circle.
* myShape.graphics.append({exec:function(ctx, shape) {
* ctx.fillStyle = shape.color;
* ctx.fill();
* }});
*
* @method append
* @param {Object} command A graphics command object exposing an "exec" method.
* @param {boolean} clean The clean param is primarily for internal use. A value of true indicates that a command does not generate a path that should be stroked or filled.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.append = function(command, clean) {
this._activeInstructions.push(command);
this.command = command;
if (!clean) { this._dirty = true; }
return this;
};
/**
* Decodes a compact encoded path string into a series of draw instructions.
* This format is not intended to be human readable, and is meant for use by authoring tools.
* The format uses a base64 character set, with each character representing 6 bits, to define a series of draw
* commands.
*
* Each command is comprised of a single "header" character followed by a variable number of alternating x and y
* position values. Reading the header bits from left to right (most to least significant): bits 1 to 3 specify the
* type of operation (0-moveTo, 1-lineTo, 2-quadraticCurveTo, 3-bezierCurveTo, 4-closePath, 5-7 unused). Bit 4
* indicates whether position values use 12 bits (2 characters) or 18 bits (3 characters), with a one indicating the
* latter. Bits 5 and 6 are currently unused.
*
* Following the header is a series of 0 (closePath), 2 (moveTo, lineTo), 4 (quadraticCurveTo), or 6 (bezierCurveTo)
* parameters. These parameters are alternating x/y positions represented by 2 or 3 characters (as indicated by the
* 4th bit in the command char). These characters consist of a 1 bit sign (1 is negative, 0 is positive), followed
* by an 11 (2 char) or 17 (3 char) bit integer value. All position values are in tenths of a pixel. Except in the
* case of move operations which are absolute, this value is a delta from the previous x or y position (as
* appropriate).
*
* For example, the string "A3cAAMAu4AAA" represents a line starting at -150,0 and ending at 150,0.
* <br />A - bits 000000. First 3 bits (000) indicate a moveTo operation. 4th bit (0) indicates 2 chars per
* parameter.
* <br />n0 - 110111011100. Absolute x position of -150.0px. First bit indicates a negative value, remaining bits
* indicate 1500 tenths of a pixel.
* <br />AA - 000000000000. Absolute y position of 0.
* <br />I - 001100. First 3 bits (001) indicate a lineTo operation. 4th bit (1) indicates 3 chars per parameter.
* <br />Au4 - 000000101110111000. An x delta of 300.0px, which is added to the previous x value of -150.0px to
* provide an absolute position of +150.0px.
* <br />AAA - 000000000000000000. A y delta value of 0.
*
* A tiny API method "p" also exists.
* @method decodePath
* @param {String} str The path string to decode.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.decodePath = function(str) {
var instructions = [this.moveTo, this.lineTo, this.quadraticCurveTo, this.bezierCurveTo, this.closePath];
var paramCount = [2, 2, 4, 6, 0];
var i=0, l=str.length;
var params = [];
var x=0, y=0;
var base64 = Graphics.BASE_64;
while (i<l) {
var c = str.charAt(i);
var n = base64[c];
var fi = n>>3; // highest order bits 1-3 code for operation.
var f = instructions[fi];
// check that we have a valid instruction & that the unused bits are empty:
if (!f || (n&3)) { throw("bad path data (@"+i+"): "+c); }
var pl = paramCount[fi];
if (!fi) { x=y=0; } // move operations reset the position.
params.length = 0;
i++;
var charCount = (n>>2&1)+2; // 4th header bit indicates number size for this operation.
for (var p=0; p<pl; p++) {
var num = base64[str.charAt(i)];
var sign = (num>>5) ? -1 : 1;
num = ((num&31)<<6)|(base64[str.charAt(i+1)]);
if (charCount == 3) { num = (num<<6)|(base64[str.charAt(i+2)]); }
num = sign*num/10;
if (p%2) { x = (num += x); }
else { y = (num += y); }
params[p] = num;
i += charCount;
}
f.apply(this,params);
}
return this;
};
/**
* Stores all graphics commands so they won't be executed in future draws. Calling store() a second time adds to
* the existing store. This also affects `drawAsPath()`.
*
* This is useful in cases where you are creating vector graphics in an iterative manner (ex. generative art), so
* that only new graphics need to be drawn (which can provide huge performance benefits), but you wish to retain all
* of the vector instructions for later use (ex. scaling, modifying, or exporting).
*
* Note that calling store() will force the active path (if any) to be ended in a manner similar to changing
* the fill or stroke.
*
* For example, consider a application where the user draws lines with the mouse. As each line segment (or collection of
* segments) are added to a Shape, it can be rasterized using {{#crossLink "DisplayObject/updateCache"}}{{/crossLink}},
* and then stored, so that it can be redrawn at a different scale when the application is resized, or exported to SVG.
*
* // set up cache:
* myShape.cache(0,0,500,500,scale);
*
* // when the user drags, draw a new line:
* myShape.graphics.moveTo(oldX,oldY).lineTo(newX,newY);
* // then draw it into the existing cache:
* myShape.updateCache("source-over");
* // store the new line, so it isn't redrawn next time:
* myShape.store();
*
* // then, when the window resizes, we can re-render at a different scale:
* // first, unstore all our lines:
* myShape.unstore();
* // then cache using the new scale:
* myShape.cache(0,0,500,500,newScale);
* // finally, store the existing commands again:
* myShape.store();
*
* @method store
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.store = function() {
this._updateInstructions(true);
this._storeIndex = this._instructions.length;
return this;
};
/**
* Unstores any graphics commands that were previously stored using {{#crossLink "Graphics/store"}}{{/crossLink}}
* so that they will be executed in subsequent draw calls.
*
* @method unstore
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
**/
p.unstore = function() {
this._storeIndex = 0;
return this;
};
/**
* Returns a clone of this Graphics instance. Note that the individual command objects are not cloned.
* @method clone
* @return {Graphics} A clone of the current Graphics instance.
**/
p.clone = function() {
var o = new Graphics();
o.command = this.command;
o._stroke = this._stroke;
o._strokeStyle = this._strokeStyle;
o._strokeDash = this._strokeDash;
o._strokeIgnoreScale = this._strokeIgnoreScale;
o._fill = this._fill;
o._instructions = this._instructions.slice();
o._commitIndex = this._commitIndex;
o._activeInstructions = this._activeInstructions.slice();
o._dirty = this._dirty;
o._storeIndex = this._storeIndex;
return o;
};
/**
* Returns a string representation of this object.
* @method toString
* @return {String} a string representation of the instance.
**/
p.toString = function() {
return "[Graphics]";
};
// tiny API:
/**
* Shortcut to moveTo.
* @method mt
* @param {Number} x The x coordinate the drawing point should move to.
* @param {Number} y The y coordinate the drawing point should move to.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls).
* @chainable
* @protected
**/
p.mt = p.moveTo;
/**
* Shortcut to lineTo.
* @method lt
* @param {Number} x The x coordinate the drawing point should draw to.
* @param {Number} y The y coordinate the drawing point should draw to.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.lt = p.lineTo;
/**
* Shortcut to arcTo.
* @method at
* @param {Number} x1
* @param {Number} y1
* @param {Number} x2
* @param {Number} y2
* @param {Number} radius
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.at = p.arcTo;
/**
* Shortcut to bezierCurveTo.
* @method bt
* @param {Number} cp1x
* @param {Number} cp1y
* @param {Number} cp2x
* @param {Number} cp2y
* @param {Number} x
* @param {Number} y
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.bt = p.bezierCurveTo;
/**
* Shortcut to quadraticCurveTo / curveTo.
* @method qt
* @param {Number} cpx
* @param {Number} cpy
* @param {Number} x
* @param {Number} y
* @protected
* @chainable
**/
p.qt = p.quadraticCurveTo;
/**
* Shortcut to arc.
* @method a
* @param {Number} x
* @param {Number} y
* @param {Number} radius
* @param {Number} startAngle Measured in radians.
* @param {Number} endAngle Measured in radians.
* @param {Boolean} anticlockwise
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @protected
* @chainable
**/
p.a = p.arc;
/**
* Shortcut to rect.
* @method r
* @param {Number} x
* @param {Number} y
* @param {Number} w Width of the rectangle
* @param {Number} h Height of the rectangle
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.r = p.rect;
/**
* Shortcut to closePath.
* @method cp
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.cp = p.closePath;
/**
* Shortcut to clear.
* @method c
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.c = p.clear;
/**
* Shortcut to beginFill.
* @method f
* @param {String} color A CSS compatible color value (ex. "red", "#FF0000", or "rgba(255,0,0,0.5)"). Setting to
* null will result in no fill.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.f = p.beginFill;
/**
* Shortcut to beginLinearGradientFill.
* @method lf
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define a gradient
* drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1, 0.9] would draw
* the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} y0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} x1 The position of the second point defining the line that defines the gradient direction and size.
* @param {Number} y1 The position of the second point defining the line that defines the gradient direction and size.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.lf = p.beginLinearGradientFill;
/**
* Shortcut to beginRadialGradientFill.
* @method rf
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 Center position of the inner circle that defines the gradient.
* @param {Number} y0 Center position of the inner circle that defines the gradient.
* @param {Number} r0 Radius of the inner circle that defines the gradient.
* @param {Number} x1 Center position of the outer circle that defines the gradient.
* @param {Number} y1 Center position of the outer circle that defines the gradient.
* @param {Number} r1 Radius of the outer circle that defines the gradient.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.rf = p.beginRadialGradientFill;
/**
* Shortcut to beginBitmapFill.
* @method bf
* @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video object to use
* as the pattern.
* @param {String} repetition Optional. Indicates whether to repeat the image in the fill area. One of "repeat",
* "repeat-x", "repeat-y", or "no-repeat". Defaults to "repeat". Note that Firefox does not support "repeat-x" or
* "repeat-y" (latest tests were in FF 20.0), and will default to "repeat".
* @param {Matrix2D} matrix Optional. Specifies a transformation matrix for the bitmap fill. This transformation
* will be applied relative to the parent transform.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.bf = p.beginBitmapFill;
/**
* Shortcut to endFill.
* @method ef
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.ef = p.endFill;
/**
* Shortcut to setStrokeStyle.
* @method ss
* @param {Number} thickness The width of the stroke.
* @param {String | Number} [caps=0] Indicates the type of caps to use at the end of lines. One of butt,
* round, or square. Defaults to "butt". Also accepts the values 0 (butt), 1 (round), and 2 (square) for use with
* the tiny API.
* @param {String | Number} [joints=0] Specifies the type of joints that should be used where two lines meet.
* One of bevel, round, or miter. Defaults to "miter". Also accepts the values 0 (miter), 1 (round), and 2 (bevel)
* for use with the tiny API.
* @param {Number} [miterLimit=10] If joints is set to "miter", then you can specify a miter limit ratio which
* controls at what point a mitered joint will be clipped.
* @param {Boolean} [ignoreScale=false] If true, the stroke will be drawn at the specified thickness regardless
* of active transformations.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.ss = p.setStrokeStyle;
/**
* Shortcut to setStrokeDash.
* @method sd
* @param {Array} [segments] An array specifying the dash pattern, alternating between line and gap.
* For example, [20,10] would create a pattern of 20 pixel lines with 10 pixel gaps between them.
* Passing null or an empty array will clear any existing dash.
* @param {Number} [offset=0] The offset of the dash pattern. For example, you could increment this value to create a "marching ants" effect.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.sd = p.setStrokeDash;
/**
* Shortcut to beginStroke.
* @method s
* @param {String} color A CSS compatible color value (ex. "#FF0000", "red", or "rgba(255,0,0,0.5)"). Setting to
* null will result in no stroke.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.s = p.beginStroke;
/**
* Shortcut to beginLinearGradientStroke.
* @method ls
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%.
* @param {Number} x0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} y0 The position of the first point defining the line that defines the gradient direction and size.
* @param {Number} x1 The position of the second point defining the line that defines the gradient direction and size.
* @param {Number} y1 The position of the second point defining the line that defines the gradient direction and size.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.ls = p.beginLinearGradientStroke;
/**
* Shortcut to beginRadialGradientStroke.
* @method rs
* @param {Array} colors An array of CSS compatible color values. For example, ["#F00","#00F"] would define
* a gradient drawing from red to blue.
* @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,
* 0.9] would draw the first color to 10% then interpolating to the second color at 90%, then draw the second color
* to 100%.
* @param {Number} x0 Center position of the inner circle that defines the gradient.
* @param {Number} y0 Center position of the inner circle that defines the gradient.
* @param {Number} r0 Radius of the inner circle that defines the gradient.
* @param {Number} x1 Center position of the outer circle that defines the gradient.
* @param {Number} y1 Center position of the outer circle that defines the gradient.
* @param {Number} r1 Radius of the outer circle that defines the gradient.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.rs = p.beginRadialGradientStroke;
/**
* Shortcut to beginBitmapStroke.
* @method bs
* @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video object to use
* as the pattern.
* @param {String} [repetition=repeat] Optional. Indicates whether to repeat the image in the fill area. One of
* "repeat", "repeat-x", "repeat-y", or "no-repeat". Defaults to "repeat".
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.bs = p.beginBitmapStroke;
/**
* Shortcut to endStroke.
* @method es
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.es = p.endStroke;
/**
* Shortcut to drawRect.
* @method dr
* @param {Number} x
* @param {Number} y
* @param {Number} w Width of the rectangle
* @param {Number} h Height of the rectangle
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.dr = p.drawRect;
/**
* Shortcut to drawRoundRect.
* @method rr
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
* @param {Number} radius Corner radius.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.rr = p.drawRoundRect;
/**
* Shortcut to drawRoundRectComplex.
* @method rc
* @param {Number} x The horizontal coordinate to draw the round rect.
* @param {Number} y The vertical coordinate to draw the round rect.
* @param {Number} w The width of the round rect.
* @param {Number} h The height of the round rect.
* @param {Number} radiusTL Top left corner radius.
* @param {Number} radiusTR Top right corner radius.
* @param {Number} radiusBR Bottom right corner radius.
* @param {Number} radiusBL Bottom left corner radius.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.rc = p.drawRoundRectComplex;
/**
* Shortcut to drawCircle.
* @method dc
* @param {Number} x x coordinate center point of circle.
* @param {Number} y y coordinate center point of circle.
* @param {Number} radius Radius of circle.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.dc = p.drawCircle;
/**
* Shortcut to drawEllipse.
* @method de
* @param {Number} x The left coordinate point of the ellipse. Note that this is different from {{#crossLink "Graphics/drawCircle"}}{{/crossLink}}
* which draws from center.
* @param {Number} y The top coordinate point of the ellipse. Note that this is different from {{#crossLink "Graphics/drawCircle"}}{{/crossLink}}
* which draws from the center.
* @param {Number} w The height (horizontal diameter) of the ellipse. The horizontal radius will be half of this
* number.
* @param {Number} h The width (vertical diameter) of the ellipse. The vertical radius will be half of this number.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.de = p.drawEllipse;
/**
* Shortcut to drawPolyStar.
* @method dp
* @param {Number} x Position of the center of the shape.
* @param {Number} y Position of the center of the shape.
* @param {Number} radius The outer radius of the shape.
* @param {Number} sides The number of points on the star or sides on the polygon.
* @param {Number} pointSize The depth or "pointy-ness" of the star points. A pointSize of 0 will draw a regular
* polygon (no points), a pointSize of 1 will draw nothing because the points are infinitely pointy.
* @param {Number} angle The angle of the first point / corner. For example a value of 0 will draw the first point
* directly to the right of the center.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.dp = p.drawPolyStar;
/**
* Shortcut to decodePath.
* @method p
* @param {String} str The path string to decode.
* @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)
* @chainable
* @protected
**/
p.p = p.decodePath;
// private methods:
/**
* @method _updateInstructions
* @param commit
* @protected
**/
p._updateInstructions = function(commit) {
var instr = this._instructions, active = this._activeInstructions, commitIndex = this._commitIndex;
if (this._dirty && active.length) {
instr.length = commitIndex; // remove old, uncommitted commands
instr.push(Graphics.beginCmd);
var l = active.length, ll = instr.length;
instr.length = ll+l;
for (var i=0; i<l; i++) { instr[i+ll] = active[i]; }
if (this._fill) { instr.push(this._fill); }
if (this._stroke) {
// doesn't need to be re-applied if it hasn't changed.
if (this._strokeDash !== this._oldStrokeDash) {
this._oldStrokeDash = this._strokeDash;
instr.push(this._strokeDash);
}
if (this._strokeStyle !== this._oldStrokeStyle) {
this._oldStrokeStyle = this._strokeStyle;
instr.push(this._strokeStyle);
}
instr.push(this._stroke);
}
this._dirty = false;
}
if (commit) {
active.length = 0;
this._commitIndex = instr.length;
}
};
/**
* @method _setFill
* @param fill
* @protected
**/
p._setFill = function(fill) {
this._updateInstructions(true);
this.command = this._fill = fill;
return this;
};
/**
* @method _setStroke
* @param stroke
* @protected
**/
p._setStroke = function(stroke) {
this._updateInstructions(true);
if (this.command = this._stroke = stroke) {
stroke.ignoreScale = this._strokeIgnoreScale;
}
return this;
};
// Command Objects:
/**
* @namespace Graphics
*/
/**
* Graphics command object. See {{#crossLink "Graphics/lineTo"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information. See {{#crossLink "Graphics"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class LineTo
* @constructor
* @param {Number} x
* @param {Number} y
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.LineTo = function(x, y) {
this.x = x; this.y = y;
}).prototype.exec = function(ctx) { ctx.lineTo(this.x,this.y); };
/**
* Graphics command object. See {{#crossLink "Graphics/moveTo"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class MoveTo
* @constructor
* @param {Number} x
* @param {Number} y
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @method exec
* @param {CanvasRenderingContext2D} ctx
*/
(G.MoveTo = function(x, y) {
this.x = x; this.y = y;
}).prototype.exec = function(ctx) { ctx.moveTo(this.x, this.y); };
/**
* Graphics command object. See {{#crossLink "Graphics/arcTo"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class ArcTo
* @constructor
* @param {Number} x1
* @param {Number} y1
* @param {Number} x2
* @param {Number} y2
* @param {Number} radius
**/
/**
* @property x1
* @type Number
*/
/**
* @property y1
* @type Number
*/
/**
* @property x2
* @type Number
*/
/**
* @property y2
* @type Number
*/
/**
* @property radius
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.ArcTo = function(x1, y1, x2, y2, radius) {
this.x1 = x1; this.y1 = y1;
this.x2 = x2; this.y2 = y2;
this.radius = radius;
}).prototype.exec = function(ctx) { ctx.arcTo(this.x1, this.y1, this.x2, this.y2, this.radius); };
/**
* Graphics command object. See {{#crossLink "Graphics/arc"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Arc
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} radius
* @param {Number} startAngle
* @param {Number} endAngle
* @param {Number} anticlockwise
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property radius
* @type Number
*/
/**
* @property startAngle
* @type Number
*/
/**
* @property endAngle
* @type Number
*/
/**
* @property anticlockwise
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.Arc = function(x, y, radius, startAngle, endAngle, anticlockwise) {
this.x = x; this.y = y;
this.radius = radius;
this.startAngle = startAngle; this.endAngle = endAngle;
this.anticlockwise = !!anticlockwise;
}).prototype.exec = function(ctx) { ctx.arc(this.x, this.y, this.radius, this.startAngle, this.endAngle, this.anticlockwise); };
/**
* Graphics command object. See {{#crossLink "Graphics/quadraticCurveTo"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class QuadraticCurveTo
* @constructor
* @param {Number} cpx
* @param {Number} cpy
* @param {Number} x
* @param {Number} y
**/
/**
* @property cpx
* @type Number
*/
/**
* @property cpy
* @type Number
*/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.QuadraticCurveTo = function(cpx, cpy, x, y) {
this.cpx = cpx; this.cpy = cpy;
this.x = x; this.y = y;
}).prototype.exec = function(ctx) { ctx.quadraticCurveTo(this.cpx, this.cpy, this.x, this.y); };
/**
* Graphics command object. See {{#crossLink "Graphics/bezierCurveTo"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class BezierCurveTo
* @constructor
* @param {Number} cp1x
* @param {Number} cp1y
* @param {Number} cp2x
* @param {Number} cp2y
* @param {Number} x
* @param {Number} y
**/
/**
* @property cp1x
* @type Number
*/
/**
* @property cp1y
* @type Number
*/
/**
* @property cp2x
* @type Number
*/
/**
* @property cp2y
* @type Number
*/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.BezierCurveTo = function(cp1x, cp1y, cp2x, cp2y, x, y) {
this.cp1x = cp1x; this.cp1y = cp1y;
this.cp2x = cp2x; this.cp2y = cp2y;
this.x = x; this.y = y;
}).prototype.exec = function(ctx) { ctx.bezierCurveTo(this.cp1x, this.cp1y, this.cp2x, this.cp2y, this.x, this.y); };
/**
* Graphics command object. See {{#crossLink "Graphics/rect"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Rect
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property w
* @type Number
*/
/**
* @property h
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.Rect = function(x, y, w, h) {
this.x = x; this.y = y;
this.w = w; this.h = h;
}).prototype.exec = function(ctx) { ctx.rect(this.x, this.y, this.w, this.h); };
/**
* Graphics command object. See {{#crossLink "Graphics/closePath"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class ClosePath
* @constructor
**/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.ClosePath = function() {
}).prototype.exec = function(ctx) { ctx.closePath(); };
/**
* Graphics command object to begin a new path. See {{#crossLink "Graphics"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class BeginPath
* @constructor
**/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.BeginPath = function() {
}).prototype.exec = function(ctx) { ctx.beginPath(); };
/**
* Graphics command object. See {{#crossLink "Graphics/beginFill"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Fill
* @constructor
* @param {Object} style A valid Context2D fillStyle.
* @param {Matrix2D} matrix
**/
/**
* A valid Context2D fillStyle.
* @property style
* @type Object
*/
/**
* @property matrix
* @type Matrix2D
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
p = (G.Fill = function(style, matrix) {
this.style = style;
this.matrix = matrix;
}).prototype;
p.exec = function(ctx) {
if (!this.style) { return; }
ctx.fillStyle = this.style;
var mtx = this.matrix;
if (mtx) { ctx.save(); ctx.transform(mtx.a, mtx.b, mtx.c, mtx.d, mtx.tx, mtx.ty); }
ctx.fill();
if (mtx) { ctx.restore(); }
};
/**
* Creates a linear gradient style and assigns it to {{#crossLink "Fill/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginLinearGradientFill"}}{{/crossLink}} for more information.
* @method linearGradient
* @param {Array} colors
*
* @param {Array} ratios
* @param {Number} x0
* @param {Number} y0
* @param {Number} x1
* @param {Number} y1
* @return {Fill} Returns this Fill object for chaining or assignment.
*/
p.linearGradient = function(colors, ratios, x0, y0, x1, y1) {
var o = this.style = Graphics._ctx.createLinearGradient(x0, y0, x1, y1);
for (var i=0, l=colors.length; i<l; i++) { o.addColorStop(ratios[i], colors[i]); }
o.props = {colors:colors, ratios:ratios, x0:x0, y0:y0, x1:x1, y1:y1, type:"linear"};
return this;
};
/**
* Creates a radial gradient style and assigns it to {{#crossLink "Fill/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginRadialGradientFill"}}{{/crossLink}} for more information.
* @method radialGradient
* @param {Array} colors
* @param {Array} ratios
* @param {Number} x0
* @param {Number} y0
* @param {Number} r0
* @param {Number} x1
* @param {Number} y1
* @param {Number} r1
* @return {Fill} Returns this Fill object for chaining or assignment.
*/
p.radialGradient = function(colors, ratios, x0, y0, r0, x1, y1, r1) {
var o = this.style = Graphics._ctx.createRadialGradient(x0, y0, r0, x1, y1, r1);
for (var i=0, l=colors.length; i<l; i++) { o.addColorStop(ratios[i], colors[i]); }
o.props = {colors:colors, ratios:ratios, x0:x0, y0:y0, r0:r0, x1:x1, y1:y1, r1:r1, type:"radial"};
return this;
};
/**
* Creates a bitmap fill style and assigns it to the {{#crossLink "Fill/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginBitmapFill"}}{{/crossLink}} for more information.
* @method bitmap
* @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image Must be loaded prior to creating a bitmap fill, or the fill will be empty.
* @param {String} [repetition] One of: repeat, repeat-x, repeat-y, or no-repeat.
* @return {Fill} Returns this Fill object for chaining or assignment.
*/
p.bitmap = function(image, repetition) {
if (image.naturalWidth || image.getContext || image.readyState >= 2) {
var o = this.style = Graphics._ctx.createPattern(image, repetition || "");
o.props = {image: image, repetition: repetition, type: "bitmap"};
}
return this;
};
p.path = false;
/**
* Graphics command object. See {{#crossLink "Graphics/beginStroke"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Stroke
* @constructor
* @param {Object} style A valid Context2D fillStyle.
* @param {Boolean} ignoreScale
**/
/**
* A valid Context2D strokeStyle.
* @property style
* @type Object
*/
/**
* @property ignoreScale
* @type Boolean
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
p = (G.Stroke = function(style, ignoreScale) {
this.style = style;
this.ignoreScale = ignoreScale;
}).prototype;
p.exec = function(ctx) {
if (!this.style) { return; }
ctx.strokeStyle = this.style;
if (this.ignoreScale) { ctx.save(); ctx.setTransform(1,0,0,1,0,0); }
ctx.stroke();
if (this.ignoreScale) { ctx.restore(); }
};
/**
* Creates a linear gradient style and assigns it to {{#crossLink "Stroke/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginLinearGradientStroke"}}{{/crossLink}} for more information.
* @method linearGradient
* @param {Array} colors
* @param {Array} ratios
* @param {Number} x0
* @param {Number} y0
* @param {Number} x1
* @param {Number} y1
* @return {Fill} Returns this Stroke object for chaining or assignment.
*/
p.linearGradient = G.Fill.prototype.linearGradient;
/**
* Creates a radial gradient style and assigns it to {{#crossLink "Stroke/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginRadialGradientStroke"}}{{/crossLink}} for more information.
* @method radialGradient
* @param {Array} colors
* @param {Array} ratios
* @param {Number} x0
* @param {Number} y0
* @param {Number} r0
* @param {Number} x1
* @param {Number} y1
* @param {Number} r1
* @return {Fill} Returns this Stroke object for chaining or assignment.
*/
p.radialGradient = G.Fill.prototype.radialGradient;
/**
* Creates a bitmap fill style and assigns it to {{#crossLink "Stroke/style:property"}}{{/crossLink}}.
* See {{#crossLink "Graphics/beginBitmapStroke"}}{{/crossLink}} for more information.
* @method bitmap
* @param {HTMLImageElement} image
* @param {String} [repetition] One of: repeat, repeat-x, repeat-y, or no-repeat.
* @return {Fill} Returns this Stroke object for chaining or assignment.
*/
p.bitmap = G.Fill.prototype.bitmap;
p.path = false;
/**
* Graphics command object. See {{#crossLink "Graphics/setStrokeStyle"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class StrokeStyle
* @constructor
* @param {Number} width
* @param {String} [caps=butt]
* @param {String} [joints=miter]
* @param {Number} [miterLimit=10]
* @param {Boolean} [ignoreScale=false]
**/
/**
* @property width
* @type Number
*/
/**
* One of: butt, round, square
* @property caps
* @type String
*/
/**
* One of: round, bevel, miter
* @property joints
* @type String
*/
/**
* @property miterLimit
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
p = (G.StrokeStyle = function(width, caps, joints, miterLimit, ignoreScale) {
this.width = width;
this.caps = caps;
this.joints = joints;
this.miterLimit = miterLimit;
this.ignoreScale = ignoreScale;
}).prototype;
p.exec = function(ctx) {
ctx.lineWidth = (this.width == null ? "1" : this.width);
ctx.lineCap = (this.caps == null ? "butt" : (isNaN(this.caps) ? this.caps : Graphics.STROKE_CAPS_MAP[this.caps]));
ctx.lineJoin = (this.joints == null ? "miter" : (isNaN(this.joints) ? this.joints : Graphics.STROKE_JOINTS_MAP[this.joints]));
ctx.miterLimit = (this.miterLimit == null ? "10" : this.miterLimit);
ctx.ignoreScale = (this.ignoreScale == null ? false : this.ignoreScale);
};
p.path = false;
/**
* Graphics command object. See {{#crossLink "Graphics/setStrokeDash"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class StrokeDash
* @constructor
* @param {Array} [segments]
* @param {Number} [offset=0]
**/
/**
* @property segments
* @type Array
*/
/**
* @property offset
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.StrokeDash = function(segments, offset) {
this.segments = segments;
this.offset = offset||0;
}).prototype.exec = function(ctx) {
if (ctx.setLineDash) { // feature detection.
ctx.setLineDash(this.segments|| G.StrokeDash.EMPTY_SEGMENTS); // instead of [] to reduce churn.
ctx.lineDashOffset = this.offset||0;
}
};
/**
* The default value for segments (ie. no dash).
* @property EMPTY_SEGMENTS
* @static
* @final
* @readonly
* @protected
* @type {Array}
**/
G.StrokeDash.EMPTY_SEGMENTS = [];
/**
* Graphics command object. See {{#crossLink "Graphics/drawRoundRectComplex"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class RoundRect
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
* @param {Number} radiusTL
* @param {Number} radiusTR
* @param {Number} radiusBR
* @param {Number} radiusBL
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property w
* @type Number
*/
/**
* @property h
* @type Number
*/
/**
* @property radiusTL
* @type Number
*/
/**
* @property radiusTR
* @type Number
*/
/**
* @property radiusBR
* @type Number
*/
/**
* @property radiusBL
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.RoundRect = function(x, y, w, h, radiusTL, radiusTR, radiusBR, radiusBL) {
this.x = x; this.y = y;
this.w = w; this.h = h;
this.radiusTL = radiusTL; this.radiusTR = radiusTR;
this.radiusBR = radiusBR; this.radiusBL = radiusBL;
}).prototype.exec = function(ctx) {
var max = (w<h?w:h)/2;
var mTL=0, mTR=0, mBR=0, mBL=0;
var x = this.x, y = this.y, w = this.w, h = this.h;
var rTL = this.radiusTL, rTR = this.radiusTR, rBR = this.radiusBR, rBL = this.radiusBL;
if (rTL < 0) { rTL *= (mTL=-1); }
if (rTL > max) { rTL = max; }
if (rTR < 0) { rTR *= (mTR=-1); }
if (rTR > max) { rTR = max; }
if (rBR < 0) { rBR *= (mBR=-1); }
if (rBR > max) { rBR = max; }
if (rBL < 0) { rBL *= (mBL=-1); }
if (rBL > max) { rBL = max; }
ctx.moveTo(x+w-rTR, y);
ctx.arcTo(x+w+rTR*mTR, y-rTR*mTR, x+w, y+rTR, rTR);
ctx.lineTo(x+w, y+h-rBR);
ctx.arcTo(x+w+rBR*mBR, y+h+rBR*mBR, x+w-rBR, y+h, rBR);
ctx.lineTo(x+rBL, y+h);
ctx.arcTo(x-rBL*mBL, y+h+rBL*mBL, x, y+h-rBL, rBL);
ctx.lineTo(x, y+rTL);
ctx.arcTo(x-rTL*mTL, y-rTL*mTL, x+rTL, y, rTL);
ctx.closePath();
};
/**
* Graphics command object. See {{#crossLink "Graphics/drawCircle"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Circle
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} radius
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property radius
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.Circle = function(x, y, radius) {
this.x = x; this.y = y;
this.radius = radius;
}).prototype.exec = function(ctx) { ctx.arc(this.x, this.y, this.radius, 0, Math.PI*2); };
/**
* Graphics command object. See {{#crossLink "Graphics/drawEllipse"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class Ellipse
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property w
* @type Number
*/
/**
* @property h
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.Ellipse = function(x, y, w, h) {
this.x = x; this.y = y;
this.w = w; this.h = h;
}).prototype.exec = function(ctx) {
var x = this.x, y = this.y;
var w = this.w, h = this.h;
var k = 0.5522848;
var ox = (w / 2) * k;
var oy = (h / 2) * k;
var xe = x + w;
var ye = y + h;
var xm = x + w / 2;
var ym = y + h / 2;
ctx.moveTo(x, ym);
ctx.bezierCurveTo(x, ym-oy, xm-ox, y, xm, y);
ctx.bezierCurveTo(xm+ox, y, xe, ym-oy, xe, ym);
ctx.bezierCurveTo(xe, ym+oy, xm+ox, ye, xm, ye);
ctx.bezierCurveTo(xm-ox, ye, x, ym+oy, x, ym);
};
/**
* Graphics command object. See {{#crossLink "Graphics/drawPolyStar"}}{{/crossLink}} and {{#crossLink "Graphics/append"}}{{/crossLink}} for more information.
* @class PolyStar
* @constructor
* @param {Number} x
* @param {Number} y
* @param {Number} radius
* @param {Number} sides
* @param {Number} pointSize
* @param {Number} angle
**/
/**
* @property x
* @type Number
*/
/**
* @property y
* @type Number
*/
/**
* @property radius
* @type Number
*/
/**
* @property sides
* @type Number
*/
/**
* @property pointSize
* @type Number
*/
/**
* @property angle
* @type Number
*/
/**
* Execute the Graphics command in the provided Canvas context.
* @method exec
* @param {CanvasRenderingContext2D} ctx The canvas rendering context
*/
(G.PolyStar = function(x, y, radius, sides, pointSize, angle) {
this.x = x; this.y = y;
this.radius = radius;
this.sides = sides;
this.pointSize = pointSize;
this.angle = angle;
}).prototype.exec = function(ctx) {
var x = this.x, y = this.y;
var radius = this.radius;
var angle = (this.angle||0)/180*Math.PI;
var sides = this.sides;
var ps = 1-(this.pointSize||0);
var a = Math.PI/sides;
ctx.moveTo(x+Math.cos(angle)*radius, y+Math.sin(angle)*radius);
for (var i=0; i<sides; i++) {
angle += a;
if (ps != 1) {
ctx.lineTo(x+Math.cos(angle)*radius*ps, y+Math.sin(angle)*radius*ps);
}
angle += a;
ctx.lineTo(x+Math.cos(angle)*radius, y+Math.sin(angle)*radius);
}
ctx.closePath();
};
// docced above.
Graphics.beginCmd = new G.BeginPath(); // so we don't have to instantiate multiple instances.
createjs.Graphics = Graphics;
}());
