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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_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ | 5 #ifndef UI_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ |
| 6 #define UI_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ | 6 #define UI_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ |
| 7 | 7 |
| 8 #include "ui/gfx/size.h" | 8 #include "ui/gfx/size.h" |
| 9 #include "ui/views/controls/button/custom_button.h" | 9 #include "ui/views/controls/button/custom_button.h" |
| 10 #include "ui/views/controls/scrollbar/scroll_bar.h" | 10 #include "ui/views/controls/scrollbar/scroll_bar.h" |
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| 37 // Retrieves the size (width or height) of the thumb. | 37 // Retrieves the size (width or height) of the thumb. |
| 38 int GetSize() const; | 38 int GetSize() const; |
| 39 | 39 |
| 40 // Sets the position of the thumb on the x or y axis. | 40 // Sets the position of the thumb on the x or y axis. |
| 41 void SetPosition(int position); | 41 void SetPosition(int position); |
| 42 | 42 |
| 43 // Gets the position of the thumb on the x or y axis. | 43 // Gets the position of the thumb on the x or y axis. |
| 44 int GetPosition() const; | 44 int GetPosition() const; |
| 45 | 45 |
| 46 // View overrides: | 46 // View overrides: |
| 47 virtual gfx::Size GetPreferredSize() const OVERRIDE = 0; | 47 virtual gfx::Size GetPreferredSize() const override = 0; |
| 48 | 48 |
| 49 protected: | 49 protected: |
| 50 // View overrides: | 50 // View overrides: |
| 51 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE = 0; | 51 virtual void OnPaint(gfx::Canvas* canvas) override = 0; |
| 52 virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE; | 52 virtual void OnMouseEntered(const ui::MouseEvent& event) override; |
| 53 virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE; | 53 virtual void OnMouseExited(const ui::MouseEvent& event) override; |
| 54 virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE; | 54 virtual bool OnMousePressed(const ui::MouseEvent& event) override; |
| 55 virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE; | 55 virtual bool OnMouseDragged(const ui::MouseEvent& event) override; |
| 56 virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE; | 56 virtual void OnMouseReleased(const ui::MouseEvent& event) override; |
| 57 virtual void OnMouseCaptureLost() OVERRIDE; | 57 virtual void OnMouseCaptureLost() override; |
| 58 | 58 |
| 59 CustomButton::ButtonState GetState() const; | 59 CustomButton::ButtonState GetState() const; |
| 60 // Update our state and schedule a repaint when the mouse moves over us. | 60 // Update our state and schedule a repaint when the mouse moves over us. |
| 61 void SetState(CustomButton::ButtonState state); | 61 void SetState(CustomButton::ButtonState state); |
| 62 | 62 |
| 63 BaseScrollBar* scroll_bar() { return scroll_bar_; } | 63 BaseScrollBar* scroll_bar() { return scroll_bar_; } |
| 64 | 64 |
| 65 private: | 65 private: |
| 66 // The BaseScrollBar that owns us. | 66 // The BaseScrollBar that owns us. |
| 67 BaseScrollBar* scroll_bar_; | 67 BaseScrollBar* scroll_bar_; |
| 68 | 68 |
| 69 int drag_start_position_; | 69 int drag_start_position_; |
| 70 | 70 |
| 71 // The position of the mouse on the scroll axis relative to the top of this | 71 // The position of the mouse on the scroll axis relative to the top of this |
| 72 // View when the drag started. | 72 // View when the drag started. |
| 73 int mouse_offset_; | 73 int mouse_offset_; |
| 74 | 74 |
| 75 // The current state of the thumb button. | 75 // The current state of the thumb button. |
| 76 CustomButton::ButtonState state_; | 76 CustomButton::ButtonState state_; |
| 77 | 77 |
| 78 DISALLOW_COPY_AND_ASSIGN(BaseScrollBarThumb); | 78 DISALLOW_COPY_AND_ASSIGN(BaseScrollBarThumb); |
| 79 }; | 79 }; |
| 80 | 80 |
| 81 } // namespace views | 81 } // namespace views |
| 82 | 82 |
| 83 #endif // UI_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ | 83 #endif // UI_VIEWS_CONTROLS_SCROLLBAR_BASE_SCROLL_BAR_THUMB_H_ |
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