| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2006, 2007 Apple 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 #ifndef CanvasRenderingContext2D_h | |
| 27 #define CanvasRenderingContext2D_h | |
| 28 | |
| 29 #include "AffineTransform.h" | |
| 30 #include "FloatSize.h" | |
| 31 #include "Font.h" | |
| 32 #include "GraphicsTypes.h" | |
| 33 #include "Path.h" | |
| 34 #include "PlatformString.h" | |
| 35 #include <wtf/Vector.h> | |
| 36 | |
| 37 #if PLATFORM(CG) | |
| 38 #include <ApplicationServices/ApplicationServices.h> | |
| 39 #endif | |
| 40 | |
| 41 namespace WebCore { | |
| 42 | |
| 43 class CanvasGradient; | |
| 44 class CanvasPattern; | |
| 45 class CanvasStyle; | |
| 46 class FloatRect; | |
| 47 class GraphicsContext; | |
| 48 class HTMLCanvasElement; | |
| 49 class HTMLImageElement; | |
| 50 class ImageData; | |
| 51 class KURL; | |
| 52 class TextMetrics; | |
| 53 | |
| 54 typedef int ExceptionCode; | |
| 55 | |
| 56 class CanvasRenderingContext2D : | |
| 57 #if USE(V8) | |
| 58 Peerable // Already has Noncopyable as a superclass. | |
| 59 #else | |
| 60 Noncopyable | |
| 61 #endif | |
| 62 { | |
| 63 public: | |
| 64 CanvasRenderingContext2D(HTMLCanvasElement*); | |
| 65 | |
| 66 void ref(); | |
| 67 void deref(); | |
| 68 | |
| 69 #if USE(V8) | |
| 70 virtual void setPeer(void* peer) | |
| 71 { | |
| 72 ASSERT(m_peer != peer); | |
| 73 if (peer) | |
| 74 ref(); | |
| 75 else | |
| 76 deref(); | |
| 77 m_peer = peer; | |
| 78 | |
| 79 } | |
| 80 virtual void* peer() const | |
| 81 { | |
| 82 return m_peer; | |
| 83 } | |
| 84 #endif | |
| 85 | |
| 86 HTMLCanvasElement* canvas() const { return m_canvas; } | |
| 87 | |
| 88 CanvasStyle* strokeStyle() const; | |
| 89 void setStrokeStyle(PassRefPtr<CanvasStyle>); | |
| 90 | |
| 91 CanvasStyle* fillStyle() const; | |
| 92 void setFillStyle(PassRefPtr<CanvasStyle>); | |
| 93 | |
| 94 float lineWidth() const; | |
| 95 void setLineWidth(float); | |
| 96 | |
| 97 String lineCap() const; | |
| 98 void setLineCap(const String&); | |
| 99 | |
| 100 String lineJoin() const; | |
| 101 void setLineJoin(const String&); | |
| 102 | |
| 103 float miterLimit() const; | |
| 104 void setMiterLimit(float); | |
| 105 | |
| 106 float shadowOffsetX() const; | |
| 107 void setShadowOffsetX(float); | |
| 108 | |
| 109 float shadowOffsetY() const; | |
| 110 void setShadowOffsetY(float); | |
| 111 | |
| 112 float shadowBlur() const; | |
| 113 void setShadowBlur(float); | |
| 114 | |
| 115 String shadowColor() const; | |
| 116 void setShadowColor(const String&); | |
| 117 | |
| 118 float globalAlpha() const; | |
| 119 void setGlobalAlpha(float); | |
| 120 | |
| 121 String globalCompositeOperation() const; | |
| 122 void setGlobalCompositeOperation(const String&); | |
| 123 | |
| 124 void save(); | |
| 125 void restore(); | |
| 126 | |
| 127 void scale(float sx, float sy); | |
| 128 void rotate(float angleInRadians); | |
| 129 void translate(float tx, float ty); | |
| 130 void transform(float m11, float m12, float m21, float m22, float dx, flo
at dy); | |
| 131 | |
| 132 void setStrokeColor(const String& color); | |
| 133 void setStrokeColor(float grayLevel); | |
| 134 void setStrokeColor(const String& color, float alpha); | |
| 135 void setStrokeColor(float grayLevel, float alpha); | |
| 136 void setStrokeColor(float r, float g, float b, float a); | |
| 137 void setStrokeColor(float c, float m, float y, float k, float a); | |
| 138 | |
| 139 void setFillColor(const String& color); | |
| 140 void setFillColor(float grayLevel); | |
| 141 void setFillColor(const String& color, float alpha); | |
| 142 void setFillColor(float grayLevel, float alpha); | |
| 143 void setFillColor(float r, float g, float b, float a); | |
| 144 void setFillColor(float c, float m, float y, float k, float a); | |
| 145 | |
| 146 void beginPath(); | |
| 147 void closePath(); | |
| 148 | |
| 149 void moveTo(float x, float y); | |
| 150 void lineTo(float x, float y); | |
| 151 void quadraticCurveTo(float cpx, float cpy, float x, float y); | |
| 152 void bezierCurveTo(float cp1x, float cp1y, float cp2x, float cp2y, float
x, float y); | |
| 153 void arcTo(float x0, float y0, float x1, float y1, float radius, Excepti
onCode&); | |
| 154 void arc(float x, float y, float r, float sa, float ea, bool clockwise,
ExceptionCode&); | |
| 155 void rect(float x, float y, float width, float height); | |
| 156 | |
| 157 void fill(); | |
| 158 void stroke(); | |
| 159 void clip(); | |
| 160 | |
| 161 bool isPointInPath(const float x, const float y); | |
| 162 | |
| 163 void clearRect(float x, float y, float width, float height); | |
| 164 void fillRect(float x, float y, float width, float height); | |
| 165 void strokeRect(float x, float y, float width, float height); | |
| 166 void strokeRect(float x, float y, float width, float height, float lineW
idth); | |
| 167 | |
| 168 void setShadow(float width, float height, float blur); | |
| 169 void setShadow(float width, float height, float blur, const String& colo
r); | |
| 170 void setShadow(float width, float height, float blur, float grayLevel); | |
| 171 void setShadow(float width, float height, float blur, const String& colo
r, float alpha); | |
| 172 void setShadow(float width, float height, float blur, float grayLevel, f
loat alpha); | |
| 173 void setShadow(float width, float height, float blur, float r, float g,
float b, float a); | |
| 174 void setShadow(float width, float height, float blur, float c, float m,
float y, float k, float a); | |
| 175 | |
| 176 void clearShadow(); | |
| 177 | |
| 178 void drawImage(HTMLImageElement*, float x, float y); | |
| 179 void drawImage(HTMLImageElement*, float x, float y, float width, float h
eight, ExceptionCode&); | |
| 180 void drawImage(HTMLImageElement*, const FloatRect& srcRect, const FloatR
ect& dstRect, ExceptionCode&); | |
| 181 void drawImage(HTMLCanvasElement*, float x, float y); | |
| 182 void drawImage(HTMLCanvasElement*, float x, float y, float width, float
height, ExceptionCode&); | |
| 183 void drawImage(HTMLCanvasElement*, const FloatRect& srcRect, const Float
Rect& dstRect, ExceptionCode&); | |
| 184 | |
| 185 void drawImageFromRect(HTMLImageElement*, float sx, float sy, float sw,
float sh, | |
| 186 float dx, float dy, float dw, float dh, const String& compositeOpera
tion); | |
| 187 | |
| 188 void setAlpha(float); | |
| 189 | |
| 190 void setCompositeOperation(const String&); | |
| 191 | |
| 192 PassRefPtr<CanvasGradient> createLinearGradient(float x0, float y0, floa
t x1, float y1); | |
| 193 PassRefPtr<CanvasGradient> createRadialGradient(float x0, float y0, floa
t r0, float x1, float y1, float r1); | |
| 194 PassRefPtr<CanvasPattern> createPattern(HTMLImageElement*, const String&
repetitionType, ExceptionCode&); | |
| 195 PassRefPtr<CanvasPattern> createPattern(HTMLCanvasElement*, const String
& repetitionType, ExceptionCode&); | |
| 196 | |
| 197 PassRefPtr<ImageData> createImageData(float width, float height) const; | |
| 198 PassRefPtr<ImageData> getImageData(float sx, float sy, float sw, float s
h, ExceptionCode&) const; | |
| 199 void putImageData(ImageData*, float dx, float dy, ExceptionCode&); | |
| 200 void putImageData(ImageData*, float dx, float dy, float dirtyX, float di
rtyY, float dirtyWidth, float dirtyHeight, ExceptionCode&); | |
| 201 | |
| 202 void reset(); | |
| 203 | |
| 204 String font() const; | |
| 205 void setFont(const String&); | |
| 206 | |
| 207 String textAlign() const; | |
| 208 void setTextAlign(const String&); | |
| 209 | |
| 210 String textBaseline() const; | |
| 211 void setTextBaseline(const String&); | |
| 212 | |
| 213 void fillText(const String& text, float x, float y); | |
| 214 void fillText(const String& text, float x, float y, float maxWidth); | |
| 215 void strokeText(const String& text, float x, float y); | |
| 216 void strokeText(const String& text, float x, float y, float maxWidth); | |
| 217 PassRefPtr<TextMetrics> measureText(const String& text); | |
| 218 | |
| 219 private: | |
| 220 struct State { | |
| 221 State(); | |
| 222 | |
| 223 RefPtr<CanvasStyle> m_strokeStyle; | |
| 224 RefPtr<CanvasStyle> m_fillStyle; | |
| 225 float m_lineWidth; | |
| 226 LineCap m_lineCap; | |
| 227 LineJoin m_lineJoin; | |
| 228 float m_miterLimit; | |
| 229 FloatSize m_shadowOffset; | |
| 230 float m_shadowBlur; | |
| 231 String m_shadowColor; | |
| 232 float m_globalAlpha; | |
| 233 CompositeOperator m_globalComposite; | |
| 234 AffineTransform m_transform; | |
| 235 | |
| 236 // Text state. | |
| 237 TextAlign m_textAlign; | |
| 238 TextBaseline m_textBaseline; | |
| 239 | |
| 240 String m_unparsedFont; | |
| 241 Font m_font; | |
| 242 bool m_realizedFont; | |
| 243 }; | |
| 244 Path m_path; | |
| 245 | |
| 246 State& state() { return m_stateStack.last(); } | |
| 247 const State& state() const { return m_stateStack.last(); } | |
| 248 | |
| 249 void applyShadow(); | |
| 250 | |
| 251 void willDraw(const FloatRect&); | |
| 252 | |
| 253 GraphicsContext* drawingContext() const; | |
| 254 | |
| 255 void applyStrokePattern(); | |
| 256 void applyFillPattern(); | |
| 257 | |
| 258 void drawTextInternal(const String& text, float x, float y, bool fill, f
loat maxWidth = 0, bool useMaxWidth = false); | |
| 259 | |
| 260 const Font& accessFont(); | |
| 261 | |
| 262 #if ENABLE(DASHBOARD_SUPPORT) | |
| 263 void clearPathForDashboardBackwardCompatibilityMode(); | |
| 264 #endif | |
| 265 | |
| 266 void checkOrigin(const KURL&); | |
| 267 | |
| 268 HTMLCanvasElement* m_canvas; | |
| 269 Vector<State, 1> m_stateStack; | |
| 270 #if USE(V8) | |
| 271 void* m_peer; | |
| 272 #endif | |
| 273 }; | |
| 274 | |
| 275 } // namespace WebCore | |
| 276 | |
| 277 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
