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Side by Side Diff: content/browser/renderer_host/backing_store.h

Issue 9600036: Move Render(View|Widget)Host and associated classes to content namespace. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Respond to review comments. Created 8 years, 9 months ago
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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 CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_ 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_
7 #pragma once 7 #pragma once
8 8
9 #include <vector> 9 #include <vector>
10 10
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/callback_forward.h" 12 #include "base/callback_forward.h"
13 #include "content/common/content_export.h" 13 #include "content/common/content_export.h"
14 #include "ui/gfx/size.h" 14 #include "ui/gfx/size.h"
15 #include "ui/gfx/surface/transport_dib.h" 15 #include "ui/gfx/surface/transport_dib.h"
16 16
17 class RenderProcessHost; 17 class RenderProcessHost;
18 class RenderWidgetHost;
19 18
20 namespace gfx { 19 namespace gfx {
21 class Rect; 20 class Rect;
22 } 21 }
23 22
24 namespace content { 23 namespace content {
25 class RenderProcessHost; 24 class RenderProcessHost;
25 class RenderWidgetHost;
26 } 26 }
27 27
28 namespace skia { 28 namespace skia {
29 class PlatformCanvas; 29 class PlatformCanvas;
30 } 30 }
31 31
32 // Represents a backing store for the pixels in a RenderWidgetHost. 32 // Represents a backing store for the pixels in a RenderWidgetHost.
33 class CONTENT_EXPORT BackingStore { 33 class CONTENT_EXPORT BackingStore {
34 public: 34 public:
35 virtual ~BackingStore(); 35 virtual ~BackingStore();
36 36
37 RenderWidgetHost* render_widget_host() const { return render_widget_host_; } 37 content::RenderWidgetHost* render_widget_host() const {
38 return render_widget_host_;
39 }
38 const gfx::Size& size() { return size_; } 40 const gfx::Size& size() { return size_; }
39 41
40 // The number of bytes that this backing store consumes. The default 42 // The number of bytes that this backing store consumes. The default
41 // implementation just assumes there's 32 bits per pixel over the current 43 // implementation just assumes there's 32 bits per pixel over the current
42 // size of the screen. Implementations may override this if they have more 44 // size of the screen. Implementations may override this if they have more
43 // information about the color depth. 45 // information about the color depth.
44 virtual size_t MemorySize(); 46 virtual size_t MemorySize();
45 47
46 // Paints the bitmap from the renderer onto the backing store. bitmap_rect 48 // Paints the bitmap from the renderer onto the backing store. bitmap_rect
47 // gives the location of bitmap, and copy_rects specifies the subregion(s) of 49 // gives the location of bitmap, and copy_rects specifies the subregion(s) of
(...skipping 17 matching lines...) Expand all
65 virtual bool CopyFromBackingStore(const gfx::Rect& rect, 67 virtual bool CopyFromBackingStore(const gfx::Rect& rect,
66 skia::PlatformCanvas* output) = 0; 68 skia::PlatformCanvas* output) = 0;
67 69
68 // Scrolls the contents of clip_rect in the backing store by dx or dy (but dx 70 // Scrolls the contents of clip_rect in the backing store by dx or dy (but dx
69 // and dy cannot both be non-zero). 71 // and dy cannot both be non-zero).
70 virtual void ScrollBackingStore(int dx, int dy, 72 virtual void ScrollBackingStore(int dx, int dy,
71 const gfx::Rect& clip_rect, 73 const gfx::Rect& clip_rect,
72 const gfx::Size& view_size) = 0; 74 const gfx::Size& view_size) = 0;
73 protected: 75 protected:
74 // Can only be constructed via subclasses. 76 // Can only be constructed via subclasses.
75 BackingStore(RenderWidgetHost* widget, const gfx::Size& size); 77 BackingStore(content::RenderWidgetHost* widget, const gfx::Size& size);
76 78
77 private: 79 private:
78 // The owner of this backing store. 80 // The owner of this backing store.
79 RenderWidgetHost* render_widget_host_; 81 content::RenderWidgetHost* render_widget_host_;
80 82
81 // The size of the backing store. 83 // The size of the backing store.
82 gfx::Size size_; 84 gfx::Size size_;
83 85
84 DISALLOW_COPY_AND_ASSIGN(BackingStore); 86 DISALLOW_COPY_AND_ASSIGN(BackingStore);
85 }; 87 };
86 88
87 #endif // CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_ 89 #endif // CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_H_
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