Merge WebKit at r75993: Initial merge by git.

Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3

1 files changed, 89 insertions, 0 deletions

diff --git a/Source/WebKit2/UIProcess/TiledDrawingAreaTile.h b/Source/WebKit2/UIProcess/TiledDrawingAreaTile.h
new file mode 100644
index 0000000..c818a3f
--- /dev/null
+++ b/Source/WebKit2/UIProcess/TiledDrawingAreaTile.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * 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 TiledDrawingAreaTile_h
+#define TiledDrawingAreaTile_h
+
+#include "IntPoint.h"
+#include "IntPointHash.h"
+#include "IntRect.h"
+#include "GraphicsContext.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+
+#if PLATFORM(QT)
+#include <QPixmap>
+#include <QRegion>
+#endif
+
+namespace WebKit {
+
+class TiledDrawingAreaProxy;
+class UpdateChunk;
+
+class TiledDrawingAreaTile : public RefCounted<TiledDrawingAreaTile> {
+public:
+    typedef WebCore::IntPoint Coordinate;
+
+    static PassRefPtr<TiledDrawingAreaTile> create(TiledDrawingAreaProxy* proxy, const Coordinate& tileCoordinate) { return adoptRef(new TiledDrawingAreaTile(proxy, tileCoordinate)); }
+    ~TiledDrawingAreaTile();
+
+    bool isDirty() const;
+    void invalidate(const WebCore::IntRect&);
+    void updateBackBuffer();
+    bool hasReadyBackBuffer() const;
+    void swapBackBufferToFront();
+    bool isReadyToPaint() const;
+    void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
+    bool hasBackBufferUpdatePending() const { return m_hasUpdatePending; }
+
+    const TiledDrawingAreaTile::Coordinate& coordinate() const { return m_coordinate; }
+    const WebCore::IntRect& rect() const { return m_rect; }
+    void resize(const WebCore::IntSize&);
+
+    void updateFromChunk(UpdateChunk* updateChunk, float);
+
+    int ID() const { return m_ID; }
+
+private:
+    TiledDrawingAreaTile(TiledDrawingAreaProxy* proxy, const TiledDrawingAreaTile::Coordinate& tileCoordinate);
+
+    TiledDrawingAreaProxy* m_proxy;
+    Coordinate m_coordinate;
+    WebCore::IntRect m_rect;
+
+    int m_ID;
+    bool m_hasUpdatePending;
+
+#if PLATFORM(QT)
+    QPixmap m_buffer;
+    QPixmap m_backBuffer;
+    QRegion m_dirtyRegion;
+#endif
+};
+
+}
+
+#endif