1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* Copyright 2006, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef platform_graphics_context_h
#define platform_graphics_context_h
#include "IntRect.h"
#include "GraphicsContext.h"
#include "RenderSkinAndroid.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include "SkTDArray.h"
#include <wtf/Vector.h>
class SkCanvas;
namespace WebCore {
class PlatformGraphicsContext {
public:
PlatformGraphicsContext(SkCanvas* canvas, bool takeCanvasOwnership = false);
~PlatformGraphicsContext();
void setGraphicsContext(GraphicsContext* gc) { m_gc = gc; }
// FIXME: Make mCanvas private
SkCanvas* mCanvas;
// FIXME: This is used by ImageBufferAndroid, which should really be
// managing the canvas lifecycle itself
bool deleteUs() const { return m_deleteCanvas; }
// State management
void beginTransparencyLayer(float opacity);
void endTransparencyLayer();
void save();
void restore();
// State values
void setAlpha(float alpha);
void setCompositeOperation(CompositeOperator op);
void setFillColor(const Color& c);
void setFillShader(SkShader* fillShader);
void setLineCap(LineCap cap);
void setLineDash(const DashArray& dashes, float dashOffset);
void setLineJoin(LineJoin join);
void setMiterLimit(float limit);
void setShadow(int radius, int dx, int dy, SkColor c);
void setShouldAntialias(bool useAA);
void setStrokeColor(const Color& c);
void setStrokeShader(SkShader* strokeShader);
void setStrokeStyle(StrokeStyle style);
void setStrokeThickness(float f);
// FIXME: These setupPaint* should be private, but
// they are used by FontAndroid currently
void setupPaintFill(SkPaint* paint) const;
bool setupPaintShadow(SkPaint* paint, SkPoint* offset) const;
// Sets up the paint for stroking. Returns true if the style is really
// just a dash of squares (the size of the paint's stroke-width.
bool setupPaintStroke(SkPaint* paint, SkRect* rect, bool isHLine = false);
// Matrix operations
void concatCTM(const AffineTransform& affine);
void rotate(float angleInRadians);
void scale(const FloatSize& size);
void translate(float x, float y);
const SkMatrix& getTotalMatrix() { return mCanvas->getTotalMatrix(); }
// Clipping
void addInnerRoundedRectClip(const IntRect& rect, int thickness);
void canvasClip(const Path& path);
void clip(const FloatRect& rect);
void clip(const Path& path);
void clipConvexPolygon(size_t numPoints, const FloatPoint*, bool antialias);
void clipOut(const IntRect& r);
void clipOut(const Path& p);
void clipPath(const Path& pathToClip, WindRule clipRule);
// Drawing
void clearRect(const FloatRect& rect);
void drawBitmapPattern(const SkBitmap& bitmap, const SkMatrix& matrix,
CompositeOperator compositeOp, const FloatRect& destRect);
void drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
const SkRect& dst, CompositeOperator op);
void drawConvexPolygon(size_t numPoints, const FloatPoint* points,
bool shouldAntialias);
void drawEllipse(const IntRect& rect);
void drawFocusRing(const Vector<IntRect>& rects, int /* width */,
int /* offset */, const Color& color);
void drawHighlightForText(const Font& font, const TextRun& run,
const FloatPoint& point, int h,
const Color& backgroundColor, ColorSpace colorSpace,
int from, int to, bool isActive);
void drawLine(const IntPoint& point1, const IntPoint& point2);
void drawLineForText(const FloatPoint& pt, float width);
void drawLineForTextChecking(const FloatPoint& pt, float width,
GraphicsContext::TextCheckingLineStyle);
void drawRect(const IntRect& rect);
void fillPath(const Path& pathToFill, WindRule fillRule);
void fillRect(const FloatRect& rect);
void fillRect(const FloatRect& rect, const Color& color, ColorSpace);
void fillRoundedRect(const IntRect& rect, const IntSize& topLeft,
const IntSize& topRight, const IntSize& bottomLeft,
const IntSize& bottomRight, const Color& color,
ColorSpace);
void strokeArc(const IntRect& r, int startAngle, int angleSpan);
void strokePath(const Path& pathToStroke);
void strokeRect(const FloatRect& rect, float lineWidth);
private:
// shadowsIgnoreTransforms is only true for canvas's ImageBuffer, which will
// have a GraphicsContext
bool shadowsIgnoreTransforms() const {
return m_gc && m_gc->shadowsIgnoreTransforms();
}
void setupPaintCommon(SkPaint* paint) const;
bool m_deleteCanvas;
struct State;
WTF::Vector<State> m_stateStack;
State* m_state;
GraphicsContext* m_gc; // Back-ptr to our parent
};
}
#endif
|
