1/* 2 Copyright (C) 2010 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 Tile_h 21#define Tile_h 22 23#if USE(TILED_BACKING_STORE) 24 25#include "IntPoint.h" 26#include "IntPointHash.h" 27#include "IntRect.h" 28#include <wtf/RefCounted.h> 29#include <wtf/Vector.h> 30 31namespace WebCore { 32 33class GraphicsContext; 34 35class Tile : public RefCounted<Tile> { 36public: 37 typedef IntPoint Coordinate; 38 39 virtual ~Tile() { } 40 41 virtual bool isDirty() const = 0; 42 virtual void invalidate(const IntRect&) = 0; 43 virtual Vector<IntRect> updateBackBuffer() = 0; 44 virtual void swapBackBufferToFront() = 0; 45 virtual bool isReadyToPaint() const = 0; 46 virtual void paint(GraphicsContext*, const IntRect&) = 0; 47 48 virtual const Tile::Coordinate& coordinate() const = 0; 49 virtual const IntRect& rect() const = 0; 50 virtual void resize(const WebCore::IntSize&) = 0; 51}; 52 53} 54#endif 55#endif 56