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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 "third_party/skia/include/core/SkColor.h" | |
| 9 #include "ui/gfx/image/image_skia.h" | 8 #include "ui/gfx/image/image_skia.h" |
| 10 #include "ui/gfx/vector_icons_public.h" | |
| 11 #include "ui/views/view.h" | 9 #include "ui/views/view.h" |
| 12 | 10 |
| 13 namespace gfx { | 11 namespace gfx { |
| 14 class Canvas; | 12 class Canvas; |
| 15 } | 13 } |
| 16 | 14 |
| 17 namespace views { | 15 namespace views { |
| 18 | 16 |
| 19 class Painter; | 17 class Painter; |
| 20 | 18 |
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| 47 | 45 |
| 48 // Set the image that should be displayed from a pointer. Reset the image | 46 // Set the image that should be displayed from a pointer. Reset the image |
| 49 // if the pointer is NULL. The pointer contents is copied in the receiver's | 47 // if the pointer is NULL. The pointer contents is copied in the receiver's |
| 50 // image. | 48 // image. |
| 51 void SetImage(const gfx::ImageSkia* image_skia); | 49 void SetImage(const gfx::ImageSkia* image_skia); |
| 52 | 50 |
| 53 // Returns the image currently displayed or NULL of none is currently set. | 51 // Returns the image currently displayed or NULL of none is currently set. |
| 54 // The returned image is still owned by the ImageView. | 52 // The returned image is still owned by the ImageView. |
| 55 const gfx::ImageSkia& GetImage(); | 53 const gfx::ImageSkia& GetImage(); |
| 56 | 54 |
| 57 // Tells the view to draw a monochrome vector image identified by |id| using | |
| 58 // |color|. The size of the view and the image will be set to |image_size|. | |
| 59 void SetVectorIcon(gfx::VectorIconId id, | |
| 60 SkColor color, | |
| 61 const gfx::Size& image_size); | |
| 62 | |
| 63 // Set the desired image size for the receiving ImageView. | 55 // Set the desired image size for the receiving ImageView. |
| 64 void SetImageSize(const gfx::Size& image_size); | 56 void SetImageSize(const gfx::Size& image_size); |
| 65 | 57 |
| 58 // Return the preferred size for the receiving view. Returns false if the |
| 59 // preferred size is not defined, which means that the view uses the image |
| 60 // size. |
| 61 bool GetImageSize(gfx::Size* image_size) const; |
| 62 |
| 66 // Returns the actual bounds of the visible image inside the view. | 63 // Returns the actual bounds of the visible image inside the view. |
| 67 gfx::Rect GetImageBounds() const; | 64 gfx::Rect GetImageBounds() const; |
| 68 | 65 |
| 69 // Reset the image size to the current image dimensions. | 66 // Reset the image size to the current image dimensions. |
| 70 void ResetImageSize(); | 67 void ResetImageSize(); |
| 71 | 68 |
| 72 // Set / Get the horizontal alignment. | 69 // Set / Get the horizontal alignment. |
| 73 void SetHorizontalAlignment(Alignment ha); | 70 void SetHorizontalAlignment(Alignment ha); |
| 74 Alignment GetHorizontalAlignment() const; | 71 Alignment GetHorizontalAlignment() const; |
| 75 | 72 |
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| 92 void OnPaint(gfx::Canvas* canvas) override; | 89 void OnPaint(gfx::Canvas* canvas) override; |
| 93 void GetAccessibleState(ui::AXViewState* state) override; | 90 void GetAccessibleState(ui::AXViewState* state) override; |
| 94 const char* GetClassName() const override; | 91 const char* GetClassName() const override; |
| 95 bool GetTooltipText(const gfx::Point& p, | 92 bool GetTooltipText(const gfx::Point& p, |
| 96 base::string16* tooltip) const override; | 93 base::string16* tooltip) const override; |
| 97 bool CanProcessEventsWithinSubtree() const override; | 94 bool CanProcessEventsWithinSubtree() const override; |
| 98 | 95 |
| 99 private: | 96 private: |
| 100 void OnPaintImage(gfx::Canvas* canvas); | 97 void OnPaintImage(gfx::Canvas* canvas); |
| 101 | 98 |
| 102 void OnPaintVectorIcon(gfx::Canvas* canvas); | |
| 103 | |
| 104 // Returns true if |img| is the same as the last image we painted. This is | 99 // Returns true if |img| is the same as the last image we painted. This is |
| 105 // intended to be a quick check, not exhaustive. In other words it's possible | 100 // intended to be a quick check, not exhaustive. In other words it's possible |
| 106 // for this to return false even though the images are in fact equal. | 101 // for this to return false even though the images are in fact equal. |
| 107 bool IsImageEqual(const gfx::ImageSkia& img) const; | 102 bool IsImageEqual(const gfx::ImageSkia& img) const; |
| 108 | 103 |
| 109 // Compute the image origin given the desired size and the receiver alignment | 104 // Compute the image origin given the desired size and the receiver alignment |
| 110 // properties. | 105 // properties. |
| 111 gfx::Point ComputeImageOrigin(const gfx::Size& image_size) const; | 106 gfx::Point ComputeImageOrigin(const gfx::Size& image_size) const; |
| 112 | 107 |
| 113 // Whether the image size is set. | 108 // Whether the image size is set. |
| 114 bool image_size_set_; | 109 bool image_size_set_; |
| 115 | 110 |
| 116 // The actual image size. | 111 // The actual image size. |
| 117 gfx::Size image_size_; | 112 gfx::Size image_size_; |
| 118 | 113 |
| 119 // The underlying image. | 114 // The underlying image. |
| 120 gfx::ImageSkia image_; | 115 gfx::ImageSkia image_; |
| 121 | 116 |
| 122 // The ID of the vector icon that should be drawn, or gfx::VECTOR_ICON_NONE. | |
| 123 // This is drawn in addition to |image_|, but in most cases you probably want | |
| 124 // one or the other and not both. | |
| 125 gfx::VectorIconId vector_id_; | |
| 126 | |
| 127 // The color to use when drawing the vector icon. | |
| 128 SkColor vector_color_; | |
| 129 | |
| 130 // Horizontal alignment. | 117 // Horizontal alignment. |
| 131 Alignment horiz_alignment_; | 118 Alignment horiz_alignment_; |
| 132 | 119 |
| 133 // Vertical alignment. | 120 // Vertical alignment. |
| 134 Alignment vert_alignment_; | 121 Alignment vert_alignment_; |
| 135 | 122 |
| 136 // The current tooltip text. | 123 // The current tooltip text. |
| 137 base::string16 tooltip_text_; | 124 base::string16 tooltip_text_; |
| 138 | 125 |
| 139 // A flag controlling hit test handling for interactivity. | 126 // A flag controlling hit test handling for interactivity. |
| 140 bool interactive_; | 127 bool interactive_; |
| 141 | 128 |
| 142 // Scale last painted at. | 129 // Scale last painted at. |
| 143 float last_paint_scale_; | 130 float last_paint_scale_; |
| 144 | 131 |
| 145 // Address of bytes we last painted. This is used only for comparison, so its | 132 // Address of bytes we last painted. This is used only for comparison, so its |
| 146 // safe to cache. | 133 // safe to cache. |
| 147 void* last_painted_bitmap_pixels_; | 134 void* last_painted_bitmap_pixels_; |
| 148 | 135 |
| 149 scoped_ptr<views::Painter> focus_painter_; | 136 scoped_ptr<views::Painter> focus_painter_; |
| 150 | 137 |
| 151 DISALLOW_COPY_AND_ASSIGN(ImageView); | 138 DISALLOW_COPY_AND_ASSIGN(ImageView); |
| 152 }; | 139 }; |
| 153 | 140 |
| 154 } // namespace views | 141 } // namespace views |
| 155 | 142 |
| 156 #endif // UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ | 143 #endif // UI_VIEWS_CONTROLS_IMAGE_VIEW_H_ |
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