1/* 2 Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies) 3 4 This library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Library General Public 6 License as published by the Free Software Foundation; either 7 version 2 of the License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public License 15 along with this library; see the file COPYING.LIB. If not, write to 16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 Boston, MA 02110-1301, USA. 18 */ 19 20#ifndef TileQt_h 21#define TileQt_h 22 23#if USE(TILED_BACKING_STORE) 24 25#include "IntPoint.h" 26#include "IntRect.h" 27#include "Tile.h" 28#include <wtf/PassRefPtr.h> 29#include <wtf/RefCounted.h> 30 31QT_BEGIN_NAMESPACE 32class QPixmap; 33class QRegion; 34QT_END_NAMESPACE 35 36namespace WebCore { 37 38class TiledBackingStore; 39 40class TileQt : public Tile { 41public: 42 typedef IntPoint Coordinate; 43 44 static PassRefPtr<Tile> create(TiledBackingStore* backingStore, const Coordinate& tileCoordinate) { return adoptRef(new TileQt(backingStore, tileCoordinate)); } 45 ~TileQt(); 46 47 bool isDirty() const; 48 void invalidate(const IntRect&); 49 Vector<IntRect> updateBackBuffer(); 50 void swapBackBufferToFront(); 51 bool isReadyToPaint() const; 52 void paint(GraphicsContext*, const IntRect&); 53 54 const Tile::Coordinate& coordinate() const { return m_coordinate; } 55 const IntRect& rect() const { return m_rect; } 56 void resize(const WebCore::IntSize&); 57 58private: 59 TileQt(TiledBackingStore*, const Coordinate&); 60 61 TiledBackingStore* m_backingStore; 62 Coordinate m_coordinate; 63 IntRect m_rect; 64 65 QPixmap* m_buffer; 66 QPixmap* m_backBuffer; 67 QRegion* m_dirtyRegion; 68}; 69 70} 71#endif 72#endif 73