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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_NINE_IMAGE_PAINTER_H_
#define UI_GFX_NINE_IMAGE_PAINTER_H_
#include <stdint.h>
#include <vector>
#include "base/gtest_prod_util.h"
#include "base/logging.h"
#include "base/macros.h"
#include "ui/gfx/gfx_export.h"
#include "ui/gfx/image/image_skia.h"
namespace gfx {
class Canvas;
class Insets;
class Rect;
class GFX_EXPORT NineImagePainter {
public:
explicit NineImagePainter(const std::vector<ImageSkia>& images);
NineImagePainter(const ImageSkia& image, const Insets& insets);
~NineImagePainter();
bool IsEmpty() const;
Size GetMinimumSize() const;
void Paint(Canvas* canvas, const Rect& bounds);
void Paint(Canvas* canvas, const Rect& bounds, uint8_t alpha);
private:
friend class NineImagePainterTest;
FRIEND_TEST_ALL_PREFIXES(NineImagePainterTest, GetSubsetRegions);
// Gets the regions for the subimages into |regions|.
static void GetSubsetRegions(const ImageSkia& image,
const Insets& insets,
std::vector<Rect>* regions);
// Images are numbered as depicted below.
// ____________________
// |__i0__|__i1__|__i2__|
// |__i3__|__i4__|__i5__|
// |__i6__|__i7__|__i8__|
ImageSkia images_[9];
DISALLOW_COPY_AND_ASSIGN(NineImagePainter);
};
} // namespace gfx
#endif // UI_GFX_NINE_IMAGE_PAINTER_H_
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