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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 VIEWS_NATIVE_THEME_DELEGATE_H_ | 5 #ifndef VIEWS_NATIVE_THEME_DELEGATE_H_ |
6 #define VIEWS_NATIVE_THEME_DELEGATE_H_ | 6 #define VIEWS_NATIVE_THEME_DELEGATE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "ui/gfx/native_theme.h" | 9 #include "ui/gfx/native_theme.h" |
10 #include "ui/gfx/rect.h" | 10 #include "ui/gfx/rect.h" |
11 #include "views/views_api.h" | 11 #include "views/views_export.h" |
12 | 12 |
13 namespace views { | 13 namespace views { |
14 | 14 |
15 // A delagate that supports animating transtions between different native | 15 // A delagate that supports animating transtions between different native |
16 // theme states. This delegate can be used to control a native theme Border | 16 // theme states. This delegate can be used to control a native theme Border |
17 // or Painter object. | 17 // or Painter object. |
18 // | 18 // |
19 // If animation is onging, the native theme border or painter will | 19 // If animation is onging, the native theme border or painter will |
20 // composite the foreground state over the backgroud state using an alpha | 20 // composite the foreground state over the backgroud state using an alpha |
21 // between 0 and 255 based on the current value of the animation. | 21 // between 0 and 255 based on the current value of the animation. |
22 class VIEWS_API NativeThemeDelegate { | 22 class VIEWS_EXPORT NativeThemeDelegate { |
23 public: | 23 public: |
24 virtual ~NativeThemeDelegate() {} | 24 virtual ~NativeThemeDelegate() {} |
25 | 25 |
26 // Get the native theme part that should be drawn. | 26 // Get the native theme part that should be drawn. |
27 virtual gfx::NativeTheme::Part GetThemePart() const = 0; | 27 virtual gfx::NativeTheme::Part GetThemePart() const = 0; |
28 | 28 |
29 // Get the rectangle that should be painted. | 29 // Get the rectangle that should be painted. |
30 virtual gfx::Rect GetThemePaintRect() const = 0; | 30 virtual gfx::Rect GetThemePaintRect() const = 0; |
31 | 31 |
32 // Get the state of the part, along with any extra data needed for drawing. | 32 // Get the state of the part, along with any extra data needed for drawing. |
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44 // If animation is onging, this returns the foreground native theme state. | 44 // If animation is onging, this returns the foreground native theme state. |
45 // This state will be composited over the background using an alpha value | 45 // This state will be composited over the background using an alpha value |
46 // based on the current value of the animation. | 46 // based on the current value of the animation. |
47 virtual gfx::NativeTheme::State GetForegroundThemeState( | 47 virtual gfx::NativeTheme::State GetForegroundThemeState( |
48 gfx::NativeTheme::ExtraParams* params) const = 0; | 48 gfx::NativeTheme::ExtraParams* params) const = 0; |
49 }; | 49 }; |
50 | 50 |
51 } // namespace views | 51 } // namespace views |
52 | 52 |
53 #endif // VIEWS_NATIVE_THEME_DELEGATE_H_ | 53 #endif // VIEWS_NATIVE_THEME_DELEGATE_H_ |
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