ui/gfx/image/image_skia_source.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GFX_IMAGE_IMAGE_SKIA_SOURCE_H_
   6 #define UI_GFX_IMAGE_IMAGE_SKIA_SOURCE_H_
   7
   8 #include <vector>
   9
  10 #include "ui/gfx/gfx_export.h"
  11
  12 namespace gfx {
  13
  14 class ImageSkiaRep;
  15
  16 class GFX_EXPORT ImageSkiaSource {
  17  public:
  18   virtual ~ImageSkiaSource() {}
  19
  20   // Returns the ImageSkiaRep for the given |scale|. ImageSkia caches the
  21   // returned ImageSkiaRep and calls this method only if it doesn't have
  22   // ImageSkiaRep for given |scale|. There is no need for the implementation to
  23   // cache the image.
  24   virtual gfx::ImageSkiaRep GetImageForScale(float scale) = 0;
  25 };
  26
  27 }  // namespace gfx
  28
  29 #endif  // UI_GFX_IMAGE_IMAGE_SKIA_SOURCE_H_