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// Copyright (c) 2011 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_BLIT_H_
#define UI_GFX_BLIT_H_
#include "ui/gfx/native_widget_types.h"
#include "ui/base/ui_export.h"
class SkCanvas;
namespace gfx {
class Point;
class Rect;
class Vector2d;
// Blits a rectangle from the source context into the destination context.
UI_EXPORT void BlitContextToContext(NativeDrawingContext dst_context,
const Rect& dst_rect,
NativeDrawingContext src_context,
const Point& src_origin);
// Blits a rectangle from the source context into the destination canvas.
UI_EXPORT void BlitContextToCanvas(SkCanvas *dst_canvas,
const Rect& dst_rect,
NativeDrawingContext src_context,
const Point& src_origin);
// Blits a rectangle from the source canvas into the destination context.
UI_EXPORT void BlitCanvasToContext(NativeDrawingContext dst_context,
const Rect& dst_rect,
SkCanvas *src_canvas,
const Point& src_origin);
// Blits a rectangle from the source canvas into the destination canvas.
UI_EXPORT void BlitCanvasToCanvas(SkCanvas *dst_canvas,
const Rect& dst_rect,
SkCanvas *src_canvas,
const Point& src_origin);
// Scrolls the given subset of the given canvas by the given offset.
// The canvas should not have a clip or a transform applied, since platforms
// may implement those operations differently.
UI_EXPORT void ScrollCanvas(SkCanvas* canvas,
const Rect& clip,
const Vector2d& offset);
} // namespace gfx
#endif // UI_GFX_BLIT_H_
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