1/* 2 * Copyright (C) 2011 Samsung Electronics 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef TileCairo_h 27#define TileCairo_h 28 29#if USE(TILED_BACKING_STORE) && USE(CAIRO) 30 31#include "IntPoint.h" 32#include "IntRect.h" 33#include "RefPtrCairo.h" 34#include "Tile.h" 35#include <cairo.h> 36#include <wtf/PassRefPtr.h> 37#include <wtf/RefCounted.h> 38 39namespace WebCore { 40 41class TiledBackingStore; 42 43class TileCairo : public Tile { 44public: 45 static PassRefPtr<Tile> create(TiledBackingStore* backingStore, const Coordinate& tileCoordinate) 46 { 47 return adoptRef(new TileCairo(backingStore, tileCoordinate)); 48 } 49 virtual ~TileCairo(); 50 51 virtual bool isDirty() const; 52 virtual void invalidate(const IntRect&); 53 virtual Vector<IntRect> updateBackBuffer(); 54 virtual void swapBackBufferToFront(); 55 virtual bool isReadyToPaint() const; 56 virtual void paint(GraphicsContext*, const IntRect&); 57 58 virtual const Tile::Coordinate& coordinate() const { return m_coordinate; } 59 virtual const IntRect& rect() const { return m_rect; } 60 virtual void resize(const WebCore::IntSize&); 61 62protected: 63 TileCairo(TiledBackingStore*, const Coordinate&); 64 65 TiledBackingStore* m_backingStore; 66 Coordinate m_coordinate; 67 IntRect m_rect; 68 69 RefPtr<cairo_surface_t> m_buffer; 70 RefPtr<cairo_region_t> m_dirtyRegion; 71}; 72 73} 74#endif 75#endif 76 77