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 TiledBackingStoreClient_h
21#define TiledBackingStoreClient_h
22
23namespace WebCore {
24
25#if USE(TILED_BACKING_STORE)
26
27class Color;
28class GraphicsContext;
29
30class TiledBackingStoreClient {
31public:
32    virtual ~TiledBackingStoreClient() { }
33    virtual void tiledBackingStorePaintBegin() = 0;
34    virtual void tiledBackingStorePaint(GraphicsContext*, const IntRect&) = 0;
35    virtual void tiledBackingStorePaintEnd(const Vector<IntRect>& paintedArea) = 0;
36    virtual void tiledBackingStoreHasPendingTileCreation() { }
37    virtual IntRect tiledBackingStoreContentsRect() = 0;
38    virtual IntRect tiledBackingStoreVisibleRect() = 0;
39    virtual Color tiledBackingStoreBackgroundColor() const = 0;
40};
41
42#else
43class TiledBackingStoreClient {};
44#endif
45
46}
47
48#endif
49