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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 class ScrollbarTheme; | 34 class ScrollbarTheme; |
35 class Scrollbar; | 35 class Scrollbar; |
36 class WebScrollbar; | 36 class WebScrollbar; |
37 struct WebRect; | 37 struct WebRect; |
38 | 38 |
39 class WebScrollbarThemePainter { | 39 class WebScrollbarThemePainter { |
40 public: | 40 public: |
41 WebScrollbarThemePainter() : m_theme(0) { } | 41 WebScrollbarThemePainter() : m_theme(0), m_deviceScaleFactor(1.0) { } |
42 WebScrollbarThemePainter(const WebScrollbarThemePainter& painter) { assign(p
ainter); } | 42 WebScrollbarThemePainter(const WebScrollbarThemePainter& painter) { assign(p
ainter); } |
43 virtual ~WebScrollbarThemePainter() | 43 virtual ~WebScrollbarThemePainter() |
44 { | 44 { |
45 reset(); | 45 reset(); |
46 } | 46 } |
47 WebScrollbarThemePainter& operator=(const WebScrollbarThemePainter& painter) | 47 WebScrollbarThemePainter& operator=(const WebScrollbarThemePainter& painter) |
48 { | 48 { |
49 assign(painter); | 49 assign(painter); |
50 return *this; | 50 return *this; |
51 } | 51 } |
52 | 52 |
53 BLINK_PLATFORM_EXPORT void assign(const WebScrollbarThemePainter&); | 53 BLINK_PLATFORM_EXPORT void assign(const WebScrollbarThemePainter&); |
54 BLINK_PLATFORM_EXPORT void reset(); | 54 BLINK_PLATFORM_EXPORT void reset(); |
55 | 55 |
56 BLINK_PLATFORM_EXPORT void paintScrollbarBackground(WebCanvas*, const WebRec
t&); | 56 BLINK_PLATFORM_EXPORT void paintScrollbarBackground(WebCanvas*, const WebRec
t&); |
57 BLINK_PLATFORM_EXPORT void paintTrackBackground(WebCanvas*, const WebRect&); | 57 BLINK_PLATFORM_EXPORT void paintTrackBackground(WebCanvas*, const WebRect&); |
58 BLINK_PLATFORM_EXPORT void paintBackTrackPart(WebCanvas*, const WebRect&); | 58 BLINK_PLATFORM_EXPORT void paintBackTrackPart(WebCanvas*, const WebRect&); |
59 BLINK_PLATFORM_EXPORT void paintForwardTrackPart(WebCanvas*, const WebRect&)
; | 59 BLINK_PLATFORM_EXPORT void paintForwardTrackPart(WebCanvas*, const WebRect&)
; |
60 BLINK_PLATFORM_EXPORT void paintBackButtonStart(WebCanvas*, const WebRect&); | 60 BLINK_PLATFORM_EXPORT void paintBackButtonStart(WebCanvas*, const WebRect&); |
61 BLINK_PLATFORM_EXPORT void paintBackButtonEnd(WebCanvas*, const WebRect&); | 61 BLINK_PLATFORM_EXPORT void paintBackButtonEnd(WebCanvas*, const WebRect&); |
62 BLINK_PLATFORM_EXPORT void paintForwardButtonStart(WebCanvas*, const WebRect
&); | 62 BLINK_PLATFORM_EXPORT void paintForwardButtonStart(WebCanvas*, const WebRect
&); |
63 BLINK_PLATFORM_EXPORT void paintForwardButtonEnd(WebCanvas*, const WebRect&)
; | 63 BLINK_PLATFORM_EXPORT void paintForwardButtonEnd(WebCanvas*, const WebRect&)
; |
64 BLINK_PLATFORM_EXPORT void paintTickmarks(WebCanvas*, const WebRect&); | 64 BLINK_PLATFORM_EXPORT void paintTickmarks(WebCanvas*, const WebRect&); |
65 BLINK_PLATFORM_EXPORT void paintThumb(WebCanvas*, const WebRect&); | 65 BLINK_PLATFORM_EXPORT void paintThumb(WebCanvas*, const WebRect&); |
66 | 66 |
67 #if INSIDE_BLINK | 67 #if INSIDE_BLINK |
68 BLINK_PLATFORM_EXPORT WebScrollbarThemePainter(ScrollbarTheme*, Scrollbar*); | 68 BLINK_PLATFORM_EXPORT WebScrollbarThemePainter(ScrollbarTheme*, Scrollbar*,
float deviceScaleFactor); |
69 #endif | 69 #endif |
70 | 70 |
71 private: | 71 private: |
72 // The theme is not owned by this class. It is assumed that the theme is a | 72 // The theme is not owned by this class. It is assumed that the theme is a |
73 // static pointer and its lifetime is essentially infinite. The functions | 73 // static pointer and its lifetime is essentially infinite. The functions |
74 // called from the painter may not be thread-safe, so all calls must be made | 74 // called from the painter may not be thread-safe, so all calls must be made |
75 // from the same thread that it is created on. | 75 // from the same thread that it is created on. |
76 ScrollbarTheme* m_theme; | 76 ScrollbarTheme* m_theme; |
77 | 77 |
78 // It is assumed that the constructor of this paint object is responsible | 78 // It is assumed that the constructor of this paint object is responsible |
79 // for the lifetime of this scrollbar. The painter has to use the real | 79 // for the lifetime of this scrollbar. The painter has to use the real |
80 // scrollbar (and not a WebScrollbar wrapper) due to static_casts for | 80 // scrollbar (and not a WebScrollbar wrapper) due to static_casts for |
81 // LayoutScrollbar and pointer-based HashMap lookups for Lion scrollbars. | 81 // LayoutScrollbar and pointer-based HashMap lookups for Lion scrollbars. |
82 WebPrivatePtr<Scrollbar> m_scrollbar; | 82 WebPrivatePtr<Scrollbar> m_scrollbar; |
| 83 |
| 84 float m_deviceScaleFactor; |
83 }; | 85 }; |
84 | 86 |
85 } // namespace blink | 87 } // namespace blink |
86 | 88 |
87 #endif | 89 #endif |
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