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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 UI_GFX_CANVAS_H_ | 5 #ifndef UI_GFX_CANVAS_H_ |
6 #define UI_GFX_CANVAS_H_ | 6 #define UI_GFX_CANVAS_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/string16.h" | 11 #include "base/string16.h" |
12 // TODO(beng): remove these includes when we no longer depend on SkTypes. | 12 // TODO(beng): remove these includes when we no longer depend on SkTypes. |
13 #include "third_party/skia/include/core/SkColor.h" | 13 #include "third_party/skia/include/core/SkColor.h" |
14 #include "third_party/skia/include/core/SkXfermode.h" | 14 #include "third_party/skia/include/core/SkXfermode.h" |
| 15 #include "ui/base/ui_export.h" |
15 #include "ui/gfx/native_widget_types.h" | 16 #include "ui/gfx/native_widget_types.h" |
16 #include "ui/ui_api.h" | |
17 | 17 |
18 namespace ui { | 18 namespace ui { |
19 class Transform; | 19 class Transform; |
20 | 20 |
21 typedef unsigned int TextureID; | 21 typedef unsigned int TextureID; |
22 } | 22 } |
23 | 23 |
24 namespace gfx { | 24 namespace gfx { |
25 | 25 |
26 class Brush; | 26 class Brush; |
27 class CanvasSkia; | 27 class CanvasSkia; |
28 class Font; | 28 class Font; |
29 class Point; | 29 class Point; |
30 class Rect; | 30 class Rect; |
31 | 31 |
32 // TODO(beng): documentation. | 32 // TODO(beng): documentation. |
33 class UI_API Canvas { | 33 class UI_EXPORT Canvas { |
34 public: | 34 public: |
35 // Specifies the alignment for text rendered with the DrawStringInt method. | 35 // Specifies the alignment for text rendered with the DrawStringInt method. |
36 enum { | 36 enum { |
37 TEXT_ALIGN_LEFT = 1, | 37 TEXT_ALIGN_LEFT = 1, |
38 TEXT_ALIGN_CENTER = 2, | 38 TEXT_ALIGN_CENTER = 2, |
39 TEXT_ALIGN_RIGHT = 4, | 39 TEXT_ALIGN_RIGHT = 4, |
40 TEXT_VALIGN_TOP = 8, | 40 TEXT_VALIGN_TOP = 8, |
41 TEXT_VALIGN_MIDDLE = 16, | 41 TEXT_VALIGN_MIDDLE = 16, |
42 TEXT_VALIGN_BOTTOM = 32, | 42 TEXT_VALIGN_BOTTOM = 32, |
43 | 43 |
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224 // Create a texture ID that can be used for accelerated drawing. | 224 // Create a texture ID that can be used for accelerated drawing. |
225 virtual ui::TextureID GetTextureID() = 0; | 225 virtual ui::TextureID GetTextureID() = 0; |
226 | 226 |
227 // TODO(beng): remove this once we don't need to use any skia-specific methods | 227 // TODO(beng): remove this once we don't need to use any skia-specific methods |
228 // through this interface. | 228 // through this interface. |
229 // A quick and dirty way to obtain the underlying SkCanvas. | 229 // A quick and dirty way to obtain the underlying SkCanvas. |
230 virtual CanvasSkia* AsCanvasSkia(); | 230 virtual CanvasSkia* AsCanvasSkia(); |
231 virtual const CanvasSkia* AsCanvasSkia() const; | 231 virtual const CanvasSkia* AsCanvasSkia() const; |
232 }; | 232 }; |
233 | 233 |
234 class UI_API CanvasPaint { | 234 class UI_EXPORT CanvasPaint { |
235 public: | 235 public: |
236 virtual ~CanvasPaint() {} | 236 virtual ~CanvasPaint() {} |
237 | 237 |
238 // Creates a canvas that paints to |view| when it is destroyed. The canvas is | 238 // Creates a canvas that paints to |view| when it is destroyed. The canvas is |
239 // sized to the client area of |view|. | 239 // sized to the client area of |view|. |
240 static CanvasPaint* CreateCanvasPaint(gfx::NativeView view); | 240 static CanvasPaint* CreateCanvasPaint(gfx::NativeView view); |
241 | 241 |
242 // Returns true if the canvas has an invalid rect that needs to be repainted. | 242 // Returns true if the canvas has an invalid rect that needs to be repainted. |
243 virtual bool IsValid() const = 0; | 243 virtual bool IsValid() const = 0; |
244 | 244 |
245 // Returns the rectangle that is invalid. | 245 // Returns the rectangle that is invalid. |
246 virtual gfx::Rect GetInvalidRect() const = 0; | 246 virtual gfx::Rect GetInvalidRect() const = 0; |
247 | 247 |
248 // Returns the underlying Canvas. | 248 // Returns the underlying Canvas. |
249 virtual Canvas* AsCanvas() = 0; | 249 virtual Canvas* AsCanvas() = 0; |
250 }; | 250 }; |
251 | 251 |
252 } // namespace gfx; | 252 } // namespace gfx; |
253 | 253 |
254 #endif // UI_GFX_CANVAS_H_ | 254 #endif // UI_GFX_CANVAS_H_ |
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