Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 70 insertions, 0 deletions

diff --git a/base/gfx/vector_canvas.h b/base/gfx/vector_canvas.h
new file mode 100644
index 0000000..d6a5703
--- /dev/null
+++ b/base/gfx/vector_canvas.h
@@ -0,0 +1,70 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef BASE_GFX_VECTOR_CANVAS_H__
+#define BASE_GFX_VECTOR_CANVAS_H__
+
+#include "base/gfx/platform_canvas.h"
+#include "base/gfx/vector_device.h"
+
+namespace gfx {
+
+// This class is a specialization of the regular PlatformCanvas. It is designed
+// to work with a VectorDevice to manage platform-specific drawing. It allows
+// using both Skia operations and platform-specific operations. It *doesn't*
+// support reading back from the bitmap backstore since it is not used.
+class VectorCanvas : public PlatformCanvas {
+ public:
+  VectorCanvas();
+  VectorCanvas(HDC dc, int width, int height);
+  virtual ~VectorCanvas();
+
+  // For two-part init, call if you use the no-argument constructor above
+  void initialize(HDC context, int width, int height);
+
+  virtual SkBounder* setBounder(SkBounder*);
+  virtual SkDevice* createDevice(SkBitmap::Config config,
+                                 int width, int height,
+                                 bool is_opaque, bool isForLayer);
+  virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter);
+
+ private:
+  // |is_opaque| is unused. |shared_section| is in fact the HDC used for output.
+  virtual SkDevice* createPlatformDevice(int width, int height, bool is_opaque,
+                                         HANDLE shared_section);
+
+  // Returns true if the top device is vector based and not bitmap based.
+  bool IsTopDeviceVectorial() const;
+
+  DISALLOW_EVIL_CONSTRUCTORS(VectorCanvas);
+};
+
+}  // namespace gfx
+
+#endif  // BASE_GFX_VECTOR_CANVAS_H__