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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_COMPOSITOR_CANVAS_PAINTER_H_ | |
6 #define UI_COMPOSITOR_CANVAS_PAINTER_H_ | |
7 | |
8 #include "base/memory/ref_counted.h" | |
9 #include "ui/compositor/compositor_export.h" | |
10 #include "ui/compositor/paint_context.h" | |
11 #include "ui/gfx/geometry/rect.h" | |
12 | |
13 namespace cc { | |
14 class DisplayItemList; | |
15 } | |
16 | |
17 namespace gfx { | |
18 class Canvas; | |
19 } | |
20 | |
21 namespace ui { | |
22 | |
23 // This class provides a simple helper for painting directly to a bitmap | |
24 // backed canvas (for painting use-cases other than compositing). After | |
25 // constructing an instance of a CanvasPainter, the context() can be used | |
26 // to do painting using the normal composited paint paths. When | |
27 // the painter is destroyed, any painting done with the context() will be | |
28 // rastered into the canvas. | |
29 class COMPOSITOR_EXPORT CanvasPainter { | |
30 public: | |
31 CanvasPainter(gfx::Canvas* canvas, float raster_scale_factor); | |
32 ~CanvasPainter(); | |
33 | |
34 const PaintContext& context() const { return context_; } | |
35 | |
36 private: | |
37 gfx::Canvas* canvas_; | |
38 float raster_scale_factor_; | |
sky
2015/06/04 22:51:29
const
danakj
2015/06/04 22:56:19
Done.
| |
39 gfx::Rect rect_; | |
sky
2015/06/04 22:51:29
const
danakj
2015/06/04 22:56:19
Done.
| |
40 scoped_refptr<cc::DisplayItemList> list_; | |
41 PaintContext context_; | |
42 | |
43 DISALLOW_COPY_AND_ASSIGN(CanvasPainter); | |
44 }; | |
45 | |
46 } // namespace ui | |
47 | |
48 #endif // UI_COMPOSITOR_CANVAS_PAINTER_H_ | |
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