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Side by Side Diff: webkit/port/platform/graphics/skia/public/PlatformCanvasWin.h

Issue 11244: Move PlatformCanvas and PlatformDevice from base/gfx to webkit/port. I left h... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 12 years, 1 month ago
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Added: svn:mergeinfo
Merged /branches/chrome_webkit_merge_branch/base/gfx/platform_canvas_win.h:r69-2775
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_GFX_PLATFORM_CANVAS_WIN_H_ 5 #ifndef PlatformCanvasWin_h
6 #define BASE_GFX_PLATFORM_CANVAS_WIN_H_ 6 #define PlatformCanvasWin_h
7 7
8 #include "base/gfx/platform_device_win.h" 8 #include <windows.h>
9
10 #include "PlatformDeviceWin.h"
9 #include "base/basictypes.h" 11 #include "base/basictypes.h"
10 12
11 #include "SkCanvas.h" 13 #include "SkCanvas.h"
12 14
13 namespace gfx { 15 namespace gfx {
14 16
15 // This class is a specialization of the regular SkCanvas that is designed to 17 // This class is a specialization of the regular SkCanvas that is designed to
16 // work with a gfx::PlatformDevice to manage platform-specific drawing. It 18 // work with a gfx::PlatformDevice to manage platform-specific drawing. It
17 // allows using both Skia operations and platform-specific operations. 19 // allows using both Skia operations and platform-specific operations.
18 class PlatformCanvasWin : public SkCanvas { 20 class PlatformCanvasWin : public SkCanvas {
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65 67
66 // Creates a device store for use by the canvas. By default, it creates a 68 // Creates a device store for use by the canvas. By default, it creates a
67 // BitmapPlatformDeviceWin. Can be overridden to change the object type. 69 // BitmapPlatformDeviceWin. Can be overridden to change the object type.
68 virtual SkDevice* createPlatformDevice(int width, int height, bool is_opaque, 70 virtual SkDevice* createPlatformDevice(int width, int height, bool is_opaque,
69 HANDLE shared_section); 71 HANDLE shared_section);
70 72
71 private: 73 private:
72 // Unimplemented. 74 // Unimplemented.
73 virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap); 75 virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap);
74 76
75 DISALLOW_COPY_AND_ASSIGN(PlatformCanvasWin); 77 // Disallow copy and assign.
78 PlatformCanvasWin(const PlatformCanvasWin&);
79 PlatformCanvasWin& operator=(const PlatformCanvasWin&);
76 }; 80 };
77 81
78 // A class designed to help with WM_PAINT operations on Windows. It will 82 // A class designed to help with WM_PAINT operations on Windows. It will
79 // do BeginPaint/EndPaint on init/destruction, and will create the bitmap and 83 // do BeginPaint/EndPaint on init/destruction, and will create the bitmap and
80 // canvas with the correct size and transform for the dirty rect. The bitmap 84 // canvas with the correct size and transform for the dirty rect. The bitmap
81 // will be automatically painted to the screen on destruction. 85 // will be automatically painted to the screen on destruction.
82 // 86 //
83 // You MUST call isEmpty before painting to determine if anything needs 87 // You MUST call isEmpty before painting to determine if anything needs
84 // painting. Sometimes the dirty rect can actually be empty, and this makes 88 // painting. Sometimes the dirty rect can actually be empty, and this makes
85 // the bitmap functions we call unhappy. The caller should not paint in this 89 // the bitmap functions we call unhappy. The caller should not paint in this
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178 182
179 // This will bring the canvas into the screen coordinate system for the 183 // This will bring the canvas into the screen coordinate system for the
180 // dirty rect 184 // dirty rect
181 translate(SkIntToScalar(-ps_.rcPaint.left), 185 translate(SkIntToScalar(-ps_.rcPaint.left),
182 SkIntToScalar(-ps_.rcPaint.top)); 186 SkIntToScalar(-ps_.rcPaint.top));
183 } 187 }
184 188
185 // If true, this canvas was created for a BeginPaint. 189 // If true, this canvas was created for a BeginPaint.
186 const bool for_paint_; 190 const bool for_paint_;
187 191
188 DISALLOW_COPY_AND_ASSIGN(CanvasPaintT); 192 // Disallow copy and assign.
193 CanvasPaintT(const CanvasPaintT&);
194 CanvasPaintT& operator=(const CanvasPaintT&);
189 }; 195 };
190 196
191 typedef CanvasPaintT<PlatformCanvasWin> PlatformCanvasWinPaint; 197 typedef CanvasPaintT<PlatformCanvasWin> PlatformCanvasWinPaint;
192 198
193 } // namespace gfx 199 } // namespace gfx
194 200
195 #endif // BASE_GFX_PLATFORM_CANVAS_WIN_H_ 201 #endif // PlatformCanvasWin_h
196 202
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