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Diffstat (limited to 'Source/WebKit2/UIProcess/BackingStore.h')
-rw-r--r-- | Source/WebKit2/UIProcess/BackingStore.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/BackingStore.h b/Source/WebKit2/UIProcess/BackingStore.h new file mode 100644 index 0000000..e196a55 --- /dev/null +++ b/Source/WebKit2/UIProcess/BackingStore.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2011 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 BackingStore_h +#define BackingStore_h + +#include <WebCore/IntSize.h> +#include <wtf/Noncopyable.h> +#include <wtf/PassOwnPtr.h> + +#if PLATFORM(MAC) +#include <wtf/RetainPtr.h> +#endif + +namespace WebCore { + class IntRect; +} + +namespace WebKit { + +class UpdateInfo; +class WebPageProxy; + +class BackingStore { + WTF_MAKE_NONCOPYABLE(BackingStore); + +public: + static PassOwnPtr<BackingStore> create(const WebCore::IntSize&); + ~BackingStore(); + +#if PLATFORM(MAC) + typedef CGContextRef PlatformGraphicsContext; +#endif + + void paint(PlatformGraphicsContext, const WebCore::IntRect&); + void incorporateUpdate(const UpdateInfo&); + +private: + explicit BackingStore(const WebCore::IntSize&); + + void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta); + + WebCore::IntSize m_size; + +#if PLATFORM(MAC) + RetainPtr<CGContextRef> m_bitmapContext; +#endif +}; + +} // namespace WebKit + +#endif // BackingStore_h |