| /* |
| * 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 |