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script: Implement enough 2D canvas support to render basic SVGs such as the tiger.

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Patrick Walton 2015-02-22 12:35:52 -05:00 • committed by Josh Matthews
parent 287f390c4a
commit 55a0ee6ec7
28 changed files with 419 additions and 181 deletions
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12
components/script/dom/webidls/CanvasGradient.webidl Normal file
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@ -0,0 +1,12 @@
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
interface CanvasGradient {
// opaque object
// addColorStop should take a double
//void addColorStop(float offset, DOMString color);
};

9
components/script/dom/webidls/CanvasPattern.webidl Normal file
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@ -0,0 +1,9 @@
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
interface CanvasPattern {
//void setTransform(SVGMatrix matrix);
};

66
components/script/dom/webidls/CanvasRenderingContext2D.webidl
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@ -3,6 +3,8 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
enum CanvasWindingRule { "nonzero", "evenodd" };
// http://www.whatwg.org/html/#2dcontext
//[Constructor(optional unsigned long width, unsigned long height), Exposed=Window,Worker]
interface CanvasRenderingContext2D {
@ -23,11 +25,21 @@ interface CanvasRenderingContext2D {
// transformations (default transform is the identity matrix)
// attribute SVGMatrix currentTransform;
//void scale(unrestricted double x, unrestricted double y);
void scale(/*unrestricted*/ double x, /*unrestricted*/ double y);
//void rotate(unrestricted double angle);
//void translate(unrestricted double x, unrestricted double y);
//void transform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);
//void setTransform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);
void translate(/*unrestricted*/ double x, /*unrestricted*/ double y);
void transform(/*unrestricted*/ double a,
/*unrestricted*/ double b,
/*unrestricted*/ double c,
/*unrestricted*/ double d,
/*unrestricted*/ double e,
/*unrestricted*/ double f);
void setTransform(/*unrestricted*/ double a,
/*unrestricted*/ double b,
/*unrestricted*/ double c,
/*unrestricted*/ double d,
/*unrestricted*/ double e,
/*unrestricted*/ double f);
//void resetTransform();
// compositing
@ -38,8 +50,8 @@ interface CanvasRenderingContext2D {
// attribute boolean imageSmoothingEnabled; // (default true)
// colours and styles (see also the CanvasDrawingStyles interface)
// attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle; // (default black)
// attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle; // (default black)
attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle; // (default black)
attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle; // (default black)
//CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1);
//CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1);
//CanvasPattern createPattern(CanvasImageSource image, [TreatNullAs=EmptyString] DOMString repetition);
@ -62,9 +74,9 @@ interface CanvasRenderingContext2D {
void strokeRect(double x, double y, double w, double h);
// path API (see also CanvasPathMethods)
//void beginPath();
//void fill(optional CanvasFillRule fillRule = "nonzero");
//void fill(Path2D path, optional CanvasFillRule fillRule = "nonzero");
void beginPath();
void fill(optional CanvasWindingRule fillRule = "nonzero");
//void fill(Path2D path, optional CanvasWindingRule fillRule = "nonzero");
//void stroke();
//void stroke(Path2D path);
//void drawSystemFocusRing(Element element);
@ -73,11 +85,11 @@ interface CanvasRenderingContext2D {
//boolean drawCustomFocusRing(Path2D path, Element element);
//void scrollPathIntoView();
//void scrollPathIntoView(Path2D path);
//void clip(optional CanvasFillRule fillRule = "nonzero");
//void clip(Path2D path, optional CanvasFillRule fillRule = "nonzero");
//void clip(optional CanvasWindingRule fillRule = "nonzero");
//void clip(Path2D path, optional CanvasWindingRule fillRule = "nonzero");
//void resetClip();
//boolean isPointInPath(unrestricted double x, unrestricted double y, optional CanvasFillRule fillRule = "nonzero");
//boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasFillRule fillRule = "nonzero");
//boolean isPointInPath(unrestricted double x, unrestricted double y, optional CanvasWindingRule fillRule = "nonzero");
//boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasWindingRule fillRule = "nonzero");
//boolean isPointInStroke(unrestricted double x, unrestricted double y);
//boolean isPointInStroke(Path2D path, unrestricted double x, unrestricted double y);
@ -105,3 +117,31 @@ interface CanvasRenderingContext2D {
void putImageData(ImageData imagedata, double dx, double dy);
void putImageData(ImageData imagedata, double dx, double dy, double dirtyX, double dirtyY, double dirtyWidth, double dirtyHeight);
};
[NoInterfaceObject]
interface CanvasPathMethods {
// shared path API methods
void closePath();
void moveTo(/*unrestricted*/ double x, /*unrestricted*/ double y);
//void lineTo(double x, double y);
//void quadraticCurveTo(double cpx, double cpy, double x, double y);
void bezierCurveTo(/*unrestricted*/ double cp1x,
/*unrestricted*/ double cp1y,
/*unrestricted*/ double cp2x,
/*unrestricted*/ double cp2y,
/*unrestricted*/ double x,
/*unrestricted*/ double y);
//void arcTo(double x1, double y1, double x2, double y2, double radius);
// NOT IMPLEMENTED [LenientFloat] void arcTo(double x1, double y1, double x2, double y2, double radiusX, double radiusY, double rotation);
//void rect(double x, double y, double w, double h);
//void arc(double x, double y, double radius, double startAngle, double endAngle, optional boolean anticlockwise = false);
// NOT IMPLEMENTED [LenientFloat] void ellipse(double x, double y, double radiusX, double radiusY, double rotation, double startAngle, double endAngle, boolean anticlockwise);
};
CanvasRenderingContext2D implements CanvasPathMethods;