ui/gfx/nine_image_painter.h

   1 // Copyright 2014 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_NINE_IMAGE_PAINTER_H_
   6 #define UI_GFX_NINE_IMAGE_PAINTER_H_
   7
   8 #include "base/logging.h"
   9 #include "ui/gfx/gfx_export.h"
  10 #include "ui/gfx/image/image_skia.h"
  11
  12 namespace gfx {
  13
  14 class Canvas;
  15 class Insets;
  16 class Rect;
  17
  18 class GFX_EXPORT NineImagePainter {
  19  public:
  20   explicit NineImagePainter(const std::vector<ImageSkia>& images);
  21   NineImagePainter(const ImageSkia& image, const Insets& insets);
  22   ~NineImagePainter();
  23
  24   bool IsEmpty() const;
  25   Size GetMinimumSize() const;
  26   void Paint(Canvas* canvas, const Rect& bounds);
  27   void Paint(Canvas* canvas, const Rect& bounds, uint8 alpha);
  28
  29  private:
  30   // Images are numbered as depicted below.
  31   //  ____________________
  32   // |__i0__|__i1__|__i2__|
  33   // |__i3__|__i4__|__i5__|
  34   // |__i6__|__i7__|__i8__|
  35   ImageSkia images_[9];
  36
  37   DISALLOW_COPY_AND_ASSIGN(NineImagePainter);
  38 };
  39
  40 }  // namespace gfx
  41
  42 #endif  // UI_GFX_NINE_IMAGE_PAINTER_H_