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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 <objidl.h> | 7 #include <objidl.h> |
| 8 #include <shlobj.h> | 8 #include <shlobj.h> |
| 9 #include <shobjidl.h> | 9 #include <shobjidl.h> |
| 10 | 10 |
| 11 #include "base/win/scoped_comptr.h" | 11 #include "base/win/scoped_comptr.h" |
| 12 #include "third_party/skia/include/core/SkBitmap.h" | 12 #include "third_party/skia/include/core/SkBitmap.h" |
| 13 #include "ui/base/dragdrop/os_exchange_data.h" | 13 #include "ui/base/dragdrop/os_exchange_data.h" |
| 14 #include "ui/base/dragdrop/os_exchange_data_provider_win.h" | 14 #include "ui/base/dragdrop/os_exchange_data_provider_win.h" |
| 15 #include "ui/gfx/canvas.h" | 15 #include "ui/gfx/canvas.h" |
| 16 #include "ui/gfx/gdi_util.h" | 16 #include "ui/gfx/gdi_util.h" |
| 17 #include "ui/gfx/image/image_skia.h" |
| 17 #include "ui/gfx/skbitmap_operations.h" | 18 #include "ui/gfx/skbitmap_operations.h" |
| 18 | 19 |
| 19 namespace drag_utils { | 20 namespace drag_utils { |
| 20 | 21 |
| 21 static void SetDragImageOnDataObject(HBITMAP hbitmap, | 22 static void SetDragImageOnDataObject(HBITMAP hbitmap, |
| 22 const gfx::Size& size, | 23 const gfx::Size& size, |
| 23 const gfx::Point& cursor_offset, | 24 const gfx::Point& cursor_offset, |
| 24 IDataObject* data_object) { | 25 IDataObject* data_object) { |
| 25 base::win::ScopedComPtr<IDragSourceHelper> helper; | 26 base::win::ScopedComPtr<IDragSourceHelper> helper; |
| 26 HRESULT rv = CoCreateInstance(CLSID_DragDropHelper, 0, CLSCTX_INPROC_SERVER, | 27 HRESULT rv = CoCreateInstance(CLSID_DragDropHelper, 0, CLSCTX_INPROC_SERVER, |
| (...skipping 19 matching lines...) Expand all Loading... |
| 46 CreateDIBSection(screen_dc, reinterpret_cast<BITMAPINFO*>(&header), | 47 CreateDIBSection(screen_dc, reinterpret_cast<BITMAPINFO*>(&header), |
| 47 DIB_RGB_COLORS, &bits, NULL, 0); | 48 DIB_RGB_COLORS, &bits, NULL, 0); |
| 48 DCHECK(sk_bitmap.rowBytes() == sk_bitmap.width() * 4); | 49 DCHECK(sk_bitmap.rowBytes() == sk_bitmap.width() * 4); |
| 49 SkAutoLockPixels lock(sk_bitmap); | 50 SkAutoLockPixels lock(sk_bitmap); |
| 50 memcpy( | 51 memcpy( |
| 51 bits, sk_bitmap.getPixels(), sk_bitmap.height() * sk_bitmap.rowBytes()); | 52 bits, sk_bitmap.getPixels(), sk_bitmap.height() * sk_bitmap.rowBytes()); |
| 52 ReleaseDC(NULL, screen_dc); | 53 ReleaseDC(NULL, screen_dc); |
| 53 return bitmap; | 54 return bitmap; |
| 54 } | 55 } |
| 55 | 56 |
| 56 void SetDragImageOnDataObject(const SkBitmap& sk_bitmap, | 57 void SetDragImageOnDataObject(const gfx::ImageSkia& image_skia, |
| 57 const gfx::Size& size, | 58 const gfx::Size& size, |
| 58 const gfx::Point& cursor_offset, | 59 const gfx::Point& cursor_offset, |
| 59 ui::OSExchangeData* data_object) { | 60 ui::OSExchangeData* data_object) { |
| 60 DCHECK(data_object && !size.IsEmpty()); | 61 DCHECK(data_object && !size.IsEmpty()); |
| 61 // InitializeFromBitmap() doesn't expect an alpha channel and is confused | 62 // InitializeFromBitmap() doesn't expect an alpha channel and is confused |
| 62 // by premultiplied colors, so unpremultiply the bitmap. | 63 // by premultiplied colors, so unpremultiply the bitmap. |
| 63 // SetDragImageOnDataObject(HBITMAP) takes ownership of the bitmap. | 64 // SetDragImageOnDataObject(HBITMAP) takes ownership of the bitmap. |
| 64 HBITMAP bitmap = CreateHBITMAPFromSkBitmap( | 65 HBITMAP bitmap = CreateHBITMAPFromSkBitmap( |
| 65 SkBitmapOperations::UnPreMultiply(sk_bitmap)); | 66 SkBitmapOperations::UnPreMultiply(*image_skia.bitmap())); |
| 66 | 67 |
| 67 // Attach 'bitmap' to the data_object. | 68 // Attach 'bitmap' to the data_object. |
| 68 SetDragImageOnDataObject(bitmap, size, cursor_offset, | 69 SetDragImageOnDataObject(bitmap, size, cursor_offset, |
| 69 ui::OSExchangeDataProviderWin::GetIDataObject(*data_object)); | 70 ui::OSExchangeDataProviderWin::GetIDataObject(*data_object)); |
| 70 } | 71 } |
| 71 | 72 |
| 72 } // namespace drag_utils | 73 } // namespace drag_utils |
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