Start implementing Direct2D Canvas. Implements Save/Restore methods, FillRectInt and BeginPlatformPaint/EndPlatformPaint.http://crbug.com/48583TEST=see unittest

Review URL: http://codereview.chromium.org/2939001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@51996 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 86 insertions, 0 deletions

diff --git a/gfx/canvas_direct2d.h b/gfx/canvas_direct2d.h
new file mode 100644
index 0000000..f4bc143
--- /dev/null
+++ b/gfx/canvas_direct2d.h
@@ -0,0 +1,86 @@
+// 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_
+
+#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 GetClipRect(gfx::Rect* clip_rect);
+  virtual bool ClipRectInt(int x, int y, int w, int h);
+  virtual bool IntersectsClipRectInt(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(int x, int y, int w, int h,
+                           const SkPaint& paint);
+  virtual void FillRectInt(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);
+  virtual void DrawRectInt(const SkColor& color, int x, int y, int w, int h,
+                           SkXfermode::Mode mode);
+  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:
+  ID2D1RenderTarget* rt_;
+  ScopedComPtr<ID2D1GdiInteropRenderTarget> interop_rt_;
+  ScopedComPtr<ID2D1DrawingStateBlock> drawing_state_block_;
+  static ID2D1Factory* d2d1_factory_;
+  std::stack<ID2D1Layer*> layers_;
+
+  DISALLOW_COPY_AND_ASSIGN(CanvasDirect2D);
+};
+
+}  // namespace gfx;
+
+#endif  // GFX_CANVAS_DIRECT2D_H_