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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 #include "ui/base/dragdrop/drag_utils.h" | 5 #include "ui/base/dragdrop/drag_utils.h" |
| 6 | 6 |
| 7 #include "base/file_util.h" | 7 #include "base/file_util.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "base/utf_string_conversions.h" | 9 #include "base/utf_string_conversions.h" |
| 10 #include "googleurl/src/gurl.h" | 10 #include "googleurl/src/gurl.h" |
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| 22 | 22 |
| 23 // Maximum width of the link drag image in pixels. | 23 // Maximum width of the link drag image in pixels. |
| 24 static const int kLinkDragImageVPadding = 3; | 24 static const int kLinkDragImageVPadding = 3; |
| 25 | 25 |
| 26 // File dragging pixel measurements | 26 // File dragging pixel measurements |
| 27 static const int kFileDragImageMaxWidth = 200; | 27 static const int kFileDragImageMaxWidth = 200; |
| 28 static const SkColor kFileDragImageTextColor = SK_ColorBLACK; | 28 static const SkColor kFileDragImageTextColor = SK_ColorBLACK; |
| 29 | 29 |
| 30 class FileDragImageSource : public gfx::CanvasImageSource { | 30 class FileDragImageSource : public gfx::CanvasImageSource { |
| 31 public: | 31 public: |
| 32 FileDragImageSource(const FilePath& file_name, const gfx::ImageSkia& icon) | 32 FileDragImageSource(const base::FilePath& file_name, |
| 33 const gfx::ImageSkia& icon) |
| 33 : CanvasImageSource(CalculateSize(icon), false), | 34 : CanvasImageSource(CalculateSize(icon), false), |
| 34 file_name_(file_name), | 35 file_name_(file_name), |
| 35 icon_(icon) { | 36 icon_(icon) { |
| 36 } | 37 } |
| 37 | 38 |
| 38 virtual ~FileDragImageSource() { | 39 virtual ~FileDragImageSource() { |
| 39 } | 40 } |
| 40 | 41 |
| 41 // Overridden from gfx::CanvasImageSource. | 42 // Overridden from gfx::CanvasImageSource. |
| 42 virtual void Draw(gfx::Canvas* canvas) OVERRIDE { | 43 virtual void Draw(gfx::Canvas* canvas) OVERRIDE { |
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| 68 gfx::Size CalculateSize(const gfx::ImageSkia& icon) const { | 69 gfx::Size CalculateSize(const gfx::ImageSkia& icon) const { |
| 69 ResourceBundle& rb = ResourceBundle::GetSharedInstance(); | 70 ResourceBundle& rb = ResourceBundle::GetSharedInstance(); |
| 70 gfx::Font font = rb.GetFont(ResourceBundle::BaseFont); | 71 gfx::Font font = rb.GetFont(ResourceBundle::BaseFont); |
| 71 const int width = kFileDragImageMaxWidth; | 72 const int width = kFileDragImageMaxWidth; |
| 72 // Add +2 here to allow room for the halo. | 73 // Add +2 here to allow room for the halo. |
| 73 const int height = font.GetHeight() + icon.height() + | 74 const int height = font.GetHeight() + icon.height() + |
| 74 kLinkDragImageVPadding + 2; | 75 kLinkDragImageVPadding + 2; |
| 75 return gfx::Size(width, height); | 76 return gfx::Size(width, height); |
| 76 } | 77 } |
| 77 | 78 |
| 78 const FilePath file_name_; | 79 const base::FilePath file_name_; |
| 79 const gfx::ImageSkia icon_; | 80 const gfx::ImageSkia icon_; |
| 80 | 81 |
| 81 DISALLOW_COPY_AND_ASSIGN(FileDragImageSource); | 82 DISALLOW_COPY_AND_ASSIGN(FileDragImageSource); |
| 82 }; | 83 }; |
| 83 | 84 |
| 84 } // namespace | 85 } // namespace |
| 85 | 86 |
| 86 void CreateDragImageForFile(const FilePath& file_name, | 87 void CreateDragImageForFile(const base::FilePath& file_name, |
| 87 const gfx::ImageSkia* icon, | 88 const gfx::ImageSkia* icon, |
| 88 ui::OSExchangeData* data_object) { | 89 ui::OSExchangeData* data_object) { |
| 89 DCHECK(icon); | 90 DCHECK(icon); |
| 90 DCHECK(data_object); | 91 DCHECK(data_object); |
| 91 gfx::CanvasImageSource* source = new FileDragImageSource(file_name, *icon); | 92 gfx::CanvasImageSource* source = new FileDragImageSource(file_name, *icon); |
| 92 gfx::Size size = source->size(); | 93 gfx::Size size = source->size(); |
| 93 // ImageSkia takes ownership of |source|. | 94 // ImageSkia takes ownership of |source|. |
| 94 gfx::ImageSkia image = gfx::ImageSkia(source, size); | 95 gfx::ImageSkia image = gfx::ImageSkia(source, size); |
| 95 | 96 |
| 96 gfx::Vector2d cursor_offset(size.width() / 2, kLinkDragImageVPadding); | 97 gfx::Vector2d cursor_offset(size.width() / 2, kLinkDragImageVPadding); |
| 97 SetDragImageOnDataObject(image, size, cursor_offset, data_object); | 98 SetDragImageOnDataObject(image, size, cursor_offset, data_object); |
| 98 } | 99 } |
| 99 | 100 |
| 100 void SetDragImageOnDataObject(const gfx::Canvas& canvas, | 101 void SetDragImageOnDataObject(const gfx::Canvas& canvas, |
| 101 const gfx::Size& size, | 102 const gfx::Size& size, |
| 102 const gfx::Vector2d& cursor_offset, | 103 const gfx::Vector2d& cursor_offset, |
| 103 ui::OSExchangeData* data_object) { | 104 ui::OSExchangeData* data_object) { |
| 104 gfx::ImageSkia image = gfx::ImageSkia(canvas.ExtractImageRep()); | 105 gfx::ImageSkia image = gfx::ImageSkia(canvas.ExtractImageRep()); |
| 105 SetDragImageOnDataObject(image, size, cursor_offset, data_object); | 106 SetDragImageOnDataObject(image, size, cursor_offset, data_object); |
| 106 } | 107 } |
| 107 | 108 |
| 108 } // namespace drag_utils | 109 } // namespace drag_utils |
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