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Unified Diff: third_party/WebKit/WebCore/platform/graphics/chromium/ThemeHelperChromiumWin.h

Issue 21201: Transparency (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 10 months ago
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Index: third_party/WebKit/WebCore/platform/graphics/chromium/ThemeHelperChromiumWin.h
===================================================================
--- third_party/WebKit/WebCore/platform/graphics/chromium/ThemeHelperChromiumWin.h (revision 10194)
+++ third_party/WebKit/WebCore/platform/graphics/chromium/ThemeHelperChromiumWin.h (working copy)
@@ -1,98 +0,0 @@
-/*
- * Copyright (c) 2008, 2009, 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 ThemeHelperWin_h
-#define ThemeHelperWin_h
-
-#include "TransformationMatrix.h"
-#include "ImageBuffer.h"
-#include "IntRect.h"
-#include <wtf/OwnPtr.h>
-
-namespace WebCore {
-
-class GraphicsContext;
-class IntRect;
-
-// Helps drawing theme elements like buttons and scroll bars. This will handle
-// translations and scalings that Windows might not, by either making Windows
-// draw the appropriate sized control, or by rendering it into an off-screen
-// context and transforming it ourselves.
-class ThemeHelperWin {
- enum Type {
- // Use the original canvas with no changes. This is the normal mode.
- ORIGINAL,
-
- // Use the original canvas but scale the rectangle of the control so
- // that it will be the correct size, undoing any scale already on the
- // canvas. This will have the effect of just drawing the control bigger
- // or smaller and not actually expanding or contracting the pixels in
- // it. This usually looks better.
- SCALE,
-
- // Make a copy of the control and then transform it ourselves after
- // Windows draws it. This allows us to get complex effects.
- COPY,
- };
-
-public:
- // Prepares drawing a control with the given rect to the given context.
- ThemeHelperWin(GraphicsContext* context, const IntRect& rect);
- ~ThemeHelperWin();
-
- // Returns the context to draw the control into, which may be the original
- // or the copy, depending on the mode.
- GraphicsContext* context()
- {
- return m_newBuffer.get() ? m_newBuffer->context() : m_orgContext;
- }
-
- // Returns the rectangle in which to draw into the canvas() by Windows.
- const IntRect& rect() { return m_rect; }
-
-private:
- Type m_type;
-
- // The original canvas to wrote to. Not owned by this class.
- GraphicsContext* m_orgContext;
- TransformationMatrix m_orgMatrix;
- IntRect m_orgRect;
-
- // When m_type == COPY, this will be a new surface owned by this class that
- // represents the copy.
- OwnPtr<ImageBuffer> m_newBuffer;
-
- // The control rectangle in the coordinate space of canvas().
- IntRect m_rect;
-};
-
-} // namespace WebCore
-
-#endif // ThemeHelperWin_h

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