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// Copyright (c) 2010 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 GFX_CANVAS_DIRECT2D_H_
#define GFX_CANVAS_DIRECT2D_H_
#pragma once
#include <d2d1.h>
#include <stack>
#include "base/scoped_comptr_win.h"
#include "gfx/canvas.h"
namespace gfx {
class CanvasDirect2D : public Canvas {
public:
// Creates an empty Canvas.
explicit CanvasDirect2D(ID2D1RenderTarget* rt);
virtual ~CanvasDirect2D();
// Retrieves the application's D2D1 Factory.
static ID2D1Factory* GetD2D1Factory();
// Overridden from Canvas:
virtual void Save();
virtual void SaveLayerAlpha(uint8 alpha);
virtual void SaveLayerAlpha(uint8 alpha, const gfx::Rect& layer_bounds);
virtual void Restore();
virtual bool ClipRectInt(int x, int y, int w, int h);
virtual void TranslateInt(int x, int y);
virtual void ScaleInt(int x, int y);
virtual void FillRectInt(const SkColor& color, int x, int y, int w, int h);
virtual void FillRectInt(const SkColor& color, int x, int y, int w, int h,
SkXfermode::Mode mode);
virtual void FillRectInt(const gfx::Brush* brush, int x, int y, int w, int h);
virtual void DrawRectInt(const SkColor& color, int x, int y, int w, int h);
virtual void DrawRectInt(const SkColor& color,
int x, int y, int w, int h,
SkXfermode::Mode mode);
virtual void DrawRectInt(int x, int y, int w, int h, const SkPaint& paint);
virtual void DrawLineInt(const SkColor& color,
int x1, int y1,
int x2, int y2);
virtual void DrawBitmapInt(const SkBitmap& bitmap, int x, int y);
virtual void DrawBitmapInt(const SkBitmap& bitmap,
int x, int y,
const SkPaint& paint);
virtual void DrawBitmapInt(const SkBitmap& bitmap,
int src_x, int src_y, int src_w, int src_h,
int dest_x, int dest_y, int dest_w, int dest_h,
bool filter);
virtual void DrawBitmapInt(const SkBitmap& bitmap,
int src_x, int src_y, int src_w, int src_h,
int dest_x, int dest_y, int dest_w, int dest_h,
bool filter,
const SkPaint& paint);
virtual void DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color,
int x, int y, int w, int h);
virtual void DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color,
const gfx::Rect& display_rect);
virtual void DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color,
int x, int y, int w, int h,
int flags);
virtual void DrawFocusRect(int x, int y, int width, int height);
virtual void TileImageInt(const SkBitmap& bitmap, int x, int y, int w, int h);
virtual void TileImageInt(const SkBitmap& bitmap,
int src_x, int src_y,
int dest_x, int dest_y, int w, int h);
virtual gfx::NativeDrawingContext BeginPlatformPaint();
virtual void EndPlatformPaint();
virtual CanvasSkia* AsCanvasSkia();
virtual const CanvasSkia* AsCanvasSkia() const;
private:
void SaveInternal(ID2D1Layer* layer);
ID2D1RenderTarget* rt_;
ScopedComPtr<ID2D1GdiInteropRenderTarget> interop_rt_;
ScopedComPtr<ID2D1DrawingStateBlock> drawing_state_block_;
static ID2D1Factory* d2d1_factory_;
// Every time Save* is called, a RenderState object is pushed onto the
// RenderState stack.
struct RenderState {
explicit RenderState(ID2D1Layer* layer) : layer(layer), clip_count(0) {}
RenderState() : layer(NULL), clip_count(0) {}
// A D2D layer associated with this state, or NULL if there is no layer.
// The layer is created and owned by the Canvas.
ID2D1Layer* layer;
// The number of clip operations performed. This is used to balance calls to
// PushAxisAlignedClip with calls to PopAxisAlignedClip when Restore() is
// called.
int clip_count;
};
std::stack<RenderState> state_;
DISALLOW_COPY_AND_ASSIGN(CanvasDirect2D);
};
} // namespace gfx;
#endif // GFX_CANVAS_DIRECT2D_H_
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