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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_IMAGE_VIEW_H_ | 5 #ifndef UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ |
| 6 #define UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ | 6 #define UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ |
| 7 | 7 |
| 8 #include "base/macros.h" | 8 #include "base/macros.h" |
| 9 #include "third_party/skia/include/core/SkColor.h" | |
| 10 #include "ui/gfx/image/image_skia.h" | 9 #include "ui/gfx/image/image_skia.h" |
| 11 #include "ui/views/view.h" | 10 #include "ui/views/view.h" |
| 12 | 11 |
| 13 namespace gfx { | 12 namespace gfx { |
| 14 class Canvas; | 13 class Canvas; |
| 15 } | 14 } |
| 16 | 15 |
| 17 namespace views { | 16 namespace views { |
| 18 | 17 |
| 19 class Painter; | |
| 20 | |
| 21 ///////////////////////////////////////////////////////////////////////////// | 18 ///////////////////////////////////////////////////////////////////////////// |
| 22 // | 19 // |
| 23 // ImageView class. | 20 // ImageView class. |
| 24 // | 21 // |
| 25 // An ImageView can display an image from an ImageSkia. If a size is provided, | 22 // An ImageView can display an image from an ImageSkia. If a size is provided, |
| 26 // the ImageView will resize the provided image to fit if it is too big or will | 23 // the ImageView will resize the provided image to fit if it is too big or will |
| 27 // center the image if smaller. Otherwise, the preferred size matches the | 24 // center the image if smaller. Otherwise, the preferred size matches the |
| 28 // provided image size. | 25 // provided image size. |
| 29 // | 26 // |
| 30 ///////////////////////////////////////////////////////////////////////////// | 27 ///////////////////////////////////////////////////////////////////////////// |
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| 68 Alignment GetHorizontalAlignment() const; | 65 Alignment GetHorizontalAlignment() const; |
| 69 | 66 |
| 70 // Set / Get the vertical alignment. | 67 // Set / Get the vertical alignment. |
| 71 void SetVerticalAlignment(Alignment va); | 68 void SetVerticalAlignment(Alignment va); |
| 72 Alignment GetVerticalAlignment() const; | 69 Alignment GetVerticalAlignment() const; |
| 73 | 70 |
| 74 // Set / Get the tooltip text. | 71 // Set / Get the tooltip text. |
| 75 void SetTooltipText(const base::string16& tooltip); | 72 void SetTooltipText(const base::string16& tooltip); |
| 76 base::string16 GetTooltipText() const; | 73 base::string16 GetTooltipText() const; |
| 77 | 74 |
| 78 void set_interactive(bool interactive) { interactive_ = interactive; } | |
| 79 | |
| 80 void SetFocusPainter(std::unique_ptr<Painter> focus_painter); | |
| 81 | |
| 82 // Overriden from View: | 75 // Overriden from View: |
| 83 gfx::Size GetPreferredSize() const override; | 76 gfx::Size GetPreferredSize() const override; |
| 84 void OnFocus() override; | |
| 85 void OnBlur() override; | |
| 86 void OnPaint(gfx::Canvas* canvas) override; | 77 void OnPaint(gfx::Canvas* canvas) override; |
| 87 void GetAccessibleNodeData(ui::AXNodeData* node_data) override; | 78 void GetAccessibleNodeData(ui::AXNodeData* node_data) override; |
| 88 const char* GetClassName() const override; | 79 const char* GetClassName() const override; |
| 89 bool GetTooltipText(const gfx::Point& p, | 80 bool GetTooltipText(const gfx::Point& p, |
| 90 base::string16* tooltip) const override; | 81 base::string16* tooltip) const override; |
| 91 bool CanProcessEventsWithinSubtree() const override; | |
| 92 | 82 |
| 93 private: | 83 private: |
| 94 void OnPaintImage(gfx::Canvas* canvas); | 84 void OnPaintImage(gfx::Canvas* canvas); |
| 95 | 85 |
| 96 // Returns true if |img| is the same as the last image we painted. This is | 86 // Returns true if |img| is the same as the last image we painted. This is |
| 97 // intended to be a quick check, not exhaustive. In other words it's possible | 87 // intended to be a quick check, not exhaustive. In other words it's possible |
| 98 // for this to return false even though the images are in fact equal. | 88 // for this to return false even though the images are in fact equal. |
| 99 bool IsImageEqual(const gfx::ImageSkia& img) const; | 89 bool IsImageEqual(const gfx::ImageSkia& img) const; |
| 100 | 90 |
| 101 // Returns the size the image will be painted. | 91 // Returns the size the image will be painted. |
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| 116 | 106 |
| 117 // Horizontal alignment. | 107 // Horizontal alignment. |
| 118 Alignment horiz_alignment_; | 108 Alignment horiz_alignment_; |
| 119 | 109 |
| 120 // Vertical alignment. | 110 // Vertical alignment. |
| 121 Alignment vert_alignment_; | 111 Alignment vert_alignment_; |
| 122 | 112 |
| 123 // The current tooltip text. | 113 // The current tooltip text. |
| 124 base::string16 tooltip_text_; | 114 base::string16 tooltip_text_; |
| 125 | 115 |
| 126 // A flag controlling hit test handling for interactivity. | |
| 127 bool interactive_; | |
| 128 | |
| 129 // Scale last painted at. | 116 // Scale last painted at. |
| 130 float last_paint_scale_; | 117 float last_paint_scale_; |
| 131 | 118 |
| 132 // Address of bytes we last painted. This is used only for comparison, so its | 119 // Address of bytes we last painted. This is used only for comparison, so its |
| 133 // safe to cache. | 120 // safe to cache. |
| 134 void* last_painted_bitmap_pixels_; | 121 void* last_painted_bitmap_pixels_; |
| 135 | 122 |
| 136 std::unique_ptr<views::Painter> focus_painter_; | |
| 137 | |
| 138 DISALLOW_COPY_AND_ASSIGN(ImageView); | 123 DISALLOW_COPY_AND_ASSIGN(ImageView); |
| 139 }; | 124 }; |
| 140 | 125 |
| 141 } // namespace views | 126 } // namespace views |
| 142 | 127 |
| 143 #endif // UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ | 128 #endif // UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ |
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