1/* 2 * Copyright (C) 2011, Igalia S.L. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#ifndef WidgetBackingStore_h 20#define WidgetBackingStore_h 21 22#include "IntRect.h" 23#include "IntSize.h" 24#include <wtf/FastMalloc.h> 25#include <wtf/Noncopyable.h> 26#include <wtf/PassOwnPtr.h> 27 28#if PLATFORM(GTK) 29#include <gtk/gtk.h> 30#elif PLATFORM(EFL) 31#include <Evas.h> 32#endif 33 34typedef struct _cairo_surface cairo_surface_t; 35 36namespace WebCore { 37 38#if PLATFORM(GTK) 39typedef GtkWidget* PlatformWidget; 40#elif PLATFORM(EFL) 41typedef Evas_Object* PlatformWidget; 42#endif 43 44class WidgetBackingStore { 45 WTF_MAKE_NONCOPYABLE(WidgetBackingStore); 46 WTF_MAKE_FAST_ALLOCATED; 47 48public: 49 virtual cairo_surface_t* cairoSurface() = 0; 50 virtual void scroll(const IntRect& scrollRect, const IntSize& scrollOffset) = 0; 51 const IntSize& size() { return m_size; } 52 53 WidgetBackingStore(const IntSize& size, float deviceScaleFactor) 54 : m_size(size) 55 , m_deviceScaleFactor(deviceScaleFactor) 56 { } 57 58 virtual ~WidgetBackingStore() { } 59 60protected: 61 IntSize m_size; 62 float m_deviceScaleFactor; 63}; 64 65} // namespace WebCore 66 67#endif // WidgetBackingStore_h 68