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 26enum CanvasWindingRule { "nonzero", "evenodd" }; 27 28interface CanvasRenderingContext2D : CanvasRenderingContext { 29 30 void save(); 31 void restore(); 32 33 [RuntimeEnabled=ExperimentalCanvasFeatures, Immutable] attribute SVGMatrix currentTransform; 34 void scale(float sx, float sy); 35 void rotate(float angle); 36 void translate(float tx, float ty); 37 void transform(float m11, float m12, float m21, float m22, float dx, float dy); 38 void setTransform(float m11, float m12, float m21, float m22, float dx, float dy); 39 void resetTransform(); 40 41 attribute float globalAlpha; 42 [TreatNullAs=NullString] attribute DOMString globalCompositeOperation; 43 44 [RaisesException] CanvasGradient createLinearGradient(float x0, float y0, float x1, float y1); 45 [RaisesException] CanvasGradient createRadialGradient(float x0, float y0, float r0, float x1, float y1, float r1); 46 47 attribute float lineWidth; 48 [TreatNullAs=NullString] attribute DOMString lineCap; 49 [TreatNullAs=NullString] attribute DOMString lineJoin; 50 attribute float miterLimit; 51 52 attribute float shadowOffsetX; 53 attribute float shadowOffsetY; 54 attribute float shadowBlur; 55 [TreatNullAs=NullString] attribute DOMString shadowColor; 56 57 void setLineDash(sequence<float> dash); 58 sequence<float> getLineDash(); 59 attribute float lineDashOffset; 60 61 // FIXME: These attributes should be implemented. 62 // [Custom] attribute Array webkitLineDash; 63 // attribute float webkitLineDashOffset; 64 65 void clearRect(float x, float y, float width, float height); 66 void fillRect(float x, float y, float width, float height); 67 68 void beginPath(); 69 70 attribute Path currentPath; 71 72 // FIXME: These methods should be shared with CanvasRenderingContext2D in the CanvasPathMethods interface. 73 void closePath(); 74 void moveTo(float x, float y); 75 void lineTo(float x, float y); 76 void quadraticCurveTo(float cpx, float cpy, float x, float y); 77 void bezierCurveTo(float cp1x, float cp1y, float cp2x, float cp2y, float x, float y); 78 [RaisesException] void arcTo(float x1, float y1, float x2, float y2, float radius); 79 void rect(float x, float y, float width, float height); 80 [RaisesException] void arc(float x, float y, float radius, float startAngle, float endAngle, [Default=Undefined] optional boolean anticlockwise); 81 [RaisesException] void ellipse(float x, float y, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, boolean anticlockwise); 82 83 void fill(optional CanvasWindingRule winding); 84 void stroke(); 85 void clip(optional CanvasWindingRule winding); 86 boolean isPointInPath(float x, float y, optional CanvasWindingRule winding); 87 boolean isPointInStroke(float x, float y); 88 89 // text 90 attribute DOMString font; 91 attribute DOMString textAlign; 92 attribute DOMString textBaseline; 93 94 TextMetrics measureText(DOMString text); 95 96 // other 97 98 void setAlpha(float alpha); 99 void setCompositeOperation(DOMString compositeOperation); 100 101 void setLineWidth(float width); 102 void setLineCap(DOMString cap); 103 void setLineJoin(DOMString join); 104 void setMiterLimit(float limit); 105 106 void clearShadow(); 107 108 void fillText(DOMString text, float x, float y, optional float maxWidth); 109 void strokeText(DOMString text, float x, float y, optional float maxWidth); 110 111 void setStrokeColor([StrictTypeChecking] DOMString color, optional float alpha); 112 void setStrokeColor(float grayLevel, optional float alpha); 113 void setStrokeColor(float r, float g, float b, float a); 114 void setStrokeColor(float c, float m, float y, float k, float a); 115 116 void setFillColor([StrictTypeChecking] DOMString color, optional float alpha); 117 void setFillColor(float grayLevel, optional float alpha); 118 void setFillColor(float r, float g, float b, float a); 119 void setFillColor(float c, float m, float y, float k, float a); 120 121 void strokeRect(float x, float y, float width, float height); 122 123 [RaisesException] void drawImage(HTMLImageElement? image, float x, float y); 124 [RaisesException] void drawImage(HTMLImageElement? image, float x, float y, float width, float height); 125 [RaisesException] void drawImage(HTMLImageElement? image, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh); 126 [RaisesException] void drawImage(HTMLCanvasElement? canvas, float x, float y); 127 [RaisesException] void drawImage(HTMLCanvasElement? canvas, float x, float y, float width, float height); 128 [RaisesException] void drawImage(HTMLCanvasElement? canvas, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh); 129 [RaisesException] void drawImage(HTMLVideoElement? video, float x, float y); 130 [RaisesException] void drawImage(HTMLVideoElement? video, float x, float y, float width, float height); 131 [RaisesException] void drawImage(HTMLVideoElement? video, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh); 132 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage(ImageBitmap? imageBitmap, float x, float y); 133 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage(ImageBitmap? imageBitmap, float x, float y, float width, float height); 134 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage(ImageBitmap? imageBitmap, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh); 135 136 void drawImageFromRect(HTMLImageElement image, 137 optional float sx, optional float sy, optional float sw, optional float sh, 138 optional float dx, optional float dy, optional float dw, optional float dh, 139 optional DOMString compositeOperation); 140 141 void setShadow(float width, float height, float blur, [StrictTypeChecking] optional DOMString color, optional float alpha); 142 void setShadow(float width, float height, float blur, float grayLevel, optional float alpha); 143 void setShadow(float width, float height, float blur, float r, float g, float b, float a); 144 void setShadow(float width, float height, float blur, float c, float m, float y, float k, float a); 145 146 [RaisesException] void putImageData(ImageData? imagedata, float dx, float dy); 147 [RaisesException] void putImageData(ImageData? imagedata, float dx, float dy, float dirtyX, float dirtyY, float dirtyWidth, float dirtyHeight); 148 149 [RaisesException] void webkitPutImageDataHD(ImageData? imagedata, float dx, float dy); 150 [RaisesException] void webkitPutImageDataHD(ImageData? imagedata, float dx, float dy, float dirtyX, float dirtyY, float dirtyWidth, float dirtyHeight); 151 152 [RaisesException] CanvasPattern createPattern(HTMLCanvasElement? canvas, [TreatNullAs=NullString] DOMString repetitionType); 153 [RaisesException] CanvasPattern createPattern(HTMLImageElement? image, [TreatNullAs=NullString] DOMString repetitionType); 154 [RaisesException] ImageData createImageData(ImageData? imagedata); 155 [RaisesException] ImageData createImageData(float sw, float sh); 156 157 [Custom] attribute object strokeStyle; 158 [Custom] attribute object fillStyle; 159 160 // pixel manipulation 161 [RaisesException] ImageData getImageData(float sx, float sy, float sw, float sh); 162 163 [RaisesException] ImageData webkitGetImageDataHD(float sx, float sy, float sw, float sh); 164 165 // Focus rings 166 [RuntimeEnabled=ExperimentalCanvasFeatures] void drawSystemFocusRing(Element element); 167 [RuntimeEnabled=ExperimentalCanvasFeatures] boolean drawCustomFocusRing(Element element); 168 169 readonly attribute float webkitBackingStorePixelRatio; 170 171 [ImplementedAs=imageSmoothingEnabled] attribute boolean webkitImageSmoothingEnabled; 172 attribute boolean imageSmoothingEnabled; 173 174 Canvas2DContextAttributes getContextAttributes(); 175}; 176 177