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Side by Side Diff: sky/engine/core/html/canvas/CanvasRenderingContext2D.idl

Issue 1001913003: Remove <canvas> (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 8 months ago
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1 /*
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-elemen t.html#canvasrenderingcontext2d
27
28 // FIXME: float => double throughout
29 // FIXME: Use union type in drawImage and createPattern once supported:
30 // http://crbug.com/372891
31 typedef (HTMLImageElement or
32 HTMLCanvasElement // or
33 // CanvasRenderingContext2D or
34 // ImageBitmap
35 ) CanvasImageSource;
36
37 enum CanvasFillRule { "nonzero", "evenodd" };
38
39 [
40 TypeChecking=(Interface,Unrestricted),
41 ] interface CanvasRenderingContext2D {
42 // back-reference to the canvas
43 readonly attribute HTMLCanvasElement canvas;
44
45 // state
46 void save(); // push state on state stack
47 void restore(); // pop state stack and restore state
48
49 // transformations (default transform is the identity matrix)
50 void scale(unrestricted float x, unrestricted float y);
51 void rotate(unrestricted float angle);
52 void translate(unrestricted float x, unrestricted float y);
53 void transform(unrestricted float a, unrestricted float b, unrestricted floa t c, unrestricted float d, unrestricted float e, unrestricted float f);
54 void setTransform(unrestricted float a, unrestricted float b, unrestricted f loat c, unrestricted float d, unrestricted float e, unrestricted float f);
55 void resetTransform();
56
57 // image smoothing
58 attribute boolean imageSmoothingEnabled;
59
60 // colors and styles (see also the CanvasDrawingStyles interface)
61 // FIXME: Use union types when supported: http://crbug.com/372891
62 // [Custom] attribute object strokeStyle; // (default black)
63 // [Custom] attribute object fillStyle; // (default black)
64
65 attribute DOMString strokeColor; // (default black)
66 attribute DOMString fillColor; // (default black)
67
68 CanvasGradient createLinearGradient(float x0, float y0, float x1, float y1);
69 [RaisesException] CanvasGradient createRadialGradient(float x0, float y0, fl oat r0, float x1, float y1, float r1);
70 [RaisesException] CanvasPattern createPattern(HTMLCanvasElement canvas, DOMS tring? repetitionType);
71 // Dart does not support overloads!
72 // [RaisesException] CanvasPattern createPattern(HTMLImageElement image, DOM String? repetitionType);
73
74 // shadows
75 attribute unrestricted float shadowOffsetX;
76 attribute unrestricted float shadowOffsetY;
77 attribute unrestricted float shadowBlur;
78 [TreatNullAs=NullString] attribute DOMString shadowColor;
79
80 // rects
81 void clearRect(unrestricted float x, unrestricted float y, unrestricted floa t width, unrestricted float height);
82 void fillRect(unrestricted float x, unrestricted float y, unrestricted float width, unrestricted float height);
83 void strokeRect(unrestricted float x, unrestricted float y, unrestricted flo at width, unrestricted float height);
84
85 // path API (see also CanvasPathMethods)
86 void beginPath();
87 void fill(optional CanvasFillRule winding);
88 // void fill(Path2D path, optional CanvasFillRule winding);
89 void stroke();
90 // void stroke(Path2D path);
91 // Focus rings
92 void drawFocusIfNeeded(Element element);
93 // void drawFocusIfNeeded(Path2D path, Element element);
94
95 void clip(optional CanvasFillRule winding);
96 // void clip(Path2D path, optional CanvasFillRule winding);
97 boolean isPointInPath(unrestricted float x, unrestricted float y, optional C anvasFillRule winding);
98 // boolean isPointInPath(Path2D path, unrestricted float x, unrestricted flo at y, optional CanvasFillRule winding);
99 boolean isPointInStroke(unrestricted float x, unrestricted float y);
100 // boolean isPointInStroke(Path2D path, unrestricted float x, unrestricted f loat y);
101
102 // text (see also the CanvasDrawingStyles interface)
103 void fillText(DOMString text, unrestricted float x, unrestricted float y, op tional unrestricted float maxWidth);
104 void strokeText(DOMString text, unrestricted float x, unrestricted float y, optional unrestricted float maxWidth);
105 TextMetrics measureText(DOMString text);
106
107 // drawing images
108 [RaisesException] void drawImage(HTMLImageElement image, unrestricted float x, unrestricted float y);
109 //[RaisesException] void drawImage(HTMLImageElement image, unrestricted floa t x, unrestricted float y, unrestricted float width, unrestricted float height);
110 //[RaisesException] void drawImage(HTMLImageElement image, unrestricted floa t sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unres tricted float dx, unrestricted float dy, unrestricted float dw, unrestricted flo at dh);
111 //[RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted fl oat x, unrestricted float y);
112 //[RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted fl oat x, unrestricted float y, unrestricted float width, unrestricted float height );
113 //[RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted fl oat sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unr estricted float dx, unrestricted float dy, unrestricted float dw, unrestricted f loat dh);
114 // [RaisesException] void drawImage(ImageBitmap imageBitmap, unrestricted fl oat x, unrestricted float y);
115 //[RaisesException] void drawImage(ImageBitmap imageBitmap, unrestricted flo at x, unrestricted float y, unrestricted float width, unrestricted float height) ;
116 //[RaisesException] void drawImage(ImageBitmap imageBitmap, unrestricted flo at sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unre stricted float dx, unrestricted float dy, unrestricted float dw, unrestricted fl oat dh);
117
118 // pixel manipulation
119 ImageData createImageData(ImageData imagedata);
120 //[RaisesException] ImageData createImageData(float sw, float sh);
121 [RaisesException] ImageData getImageData(float sx, float sy, float sw, float sh);
122 void putImageData(ImageData imagedata, float dx, float dy);
123 //void putImageData(ImageData imagedata, float dx, float dy, float dirtyX, f loat dirtyY, float dirtyWidth, float dirtyHeight);
124
125 // Context state
126 // Should be merged with WebGL counterpart in CanvasRenderingContext, once n o-longer experimental
127 boolean isContextLost();
128
129 Canvas2DContextAttributes getContextAttributes();
130
131 // FIXME: factor out to CanvasDrawingStyles
132 // line caps/joins
133 attribute unrestricted float lineWidth; // (default 1)
134 [TreatNullAs=NullString] attribute DOMString lineCap; // "butt", "round", "s quare" (default "butt")
135 [TreatNullAs=NullString] attribute DOMString lineJoin; // "round", "bevel", "miter" (default "miter")
136 attribute unrestricted float miterLimit; // (default 10)
137
138 // dashed lines
139 // TODO(eseidel): Generator doesn't handle List<unrestricted float> yet.
140 // void setLineDash(sequence<unrestricted float> dash);
141 // sequence<unrestricted float> getLineDash();
142 attribute unrestricted float lineDashOffset;
143
144 // text
145 attribute DOMString font; // (default 10px sans-serif)
146 attribute DOMString textAlign; // "start", "end", "left", "right", "center" (default: "start")
147 attribute DOMString textBaseline; // "top", "hanging", "middle", "alphabetic ", "ideographic", "bottom" (default: "alphabetic")
148 attribute DOMString direction; // "inherit", "rtl", "ltr" (default: "inherit ")
149
150 // Non-standard APIs. Candidates for deprecation
151 // https://developer.mozilla.org/en/docs/Web/API/CanvasRenderingContext2D
152 void setLineWidth(unrestricted float width);
153 void setLineCap(DOMString cap);
154 void setLineJoin(DOMString join);
155 void setMiterLimit(unrestricted float limit);
156 void clearShadow();
157 void setStrokeColor(DOMString color, optional unrestricted float alpha);
158 //void setStrokeColor(unrestricted float grayLevel, optional unrestricted fl oat alpha);
159 //void setStrokeColor(unrestricted float r, unrestricted float g, unrestrict ed float b, unrestricted float a);
160 //void setStrokeColor(unrestricted float c, unrestricted float m, unrestrict ed float y, unrestricted float k, unrestricted float a);
161 void setFillColor(DOMString color, optional unrestricted float alpha);
162 //void setFillColor(unrestricted float grayLevel, optional unrestricted floa t alpha);
163 //void setFillColor(unrestricted float r, unrestricted float g, unrestricted float b, unrestricted float a);
164 //void setFillColor(unrestricted float c, unrestricted float m, unrestricted float y, unrestricted float k, unrestricted float a);
165 void drawImageFromRect(
166 HTMLImageElement? image, optional unrestricted float sx, optional unrest ricted float sy, optional unrestricted float sw, optional unrestricted float sh,
167 optional unrestricted float dx, optional unrestricted float dy, optional unrestricted float dw, optional unrestricted float dh, optional DOMString compo siteOperation);
168 void setShadow(unrestricted float width, unrestricted float height, unrestri cted float blur, optional DOMString color, optional unrestricted float alpha);
169 //void setShadow(unrestricted float width, unrestricted float height, unrest ricted float blur, unrestricted float grayLevel, optional unrestricted float alp ha);
170 //void setShadow(unrestricted float width, unrestricted float height, unrest ricted float blur, unrestricted float r, unrestricted float g, unrestricted floa t b, unrestricted float a);
171 //void setShadow(unrestricted float width, unrestricted float height, unrest ricted float blur, unrestricted float c, unrestricted float m, unrestricted floa t y, unrestricted float k, unrestricted float a);
172 };
173
174 CanvasRenderingContext2D implements CanvasPathMethods;
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