1/* 2 * Copyright (C) 2006 Apple Computer, Inc. 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#include "GraphicsContext.h" 21#include <wtf/Noncopyable.h> 22 23OBJC_CLASS NSGraphicsContext; 24 25namespace WebCore { 26 27// This class automatically saves and restores the current NSGraphicsContext for 28// functions which call out into AppKit and rely on the currentContext being set 29class LocalCurrentGraphicsContext { 30 WTF_MAKE_NONCOPYABLE(LocalCurrentGraphicsContext); 31public: 32 LocalCurrentGraphicsContext(GraphicsContext* graphicsContext); 33 ~LocalCurrentGraphicsContext(); 34 CGContextRef cgContext(); 35private: 36 GraphicsContext* m_savedGraphicsContext; 37 NSGraphicsContext* m_savedNSGraphicsContext; 38 bool m_didSetGraphicsContext; 39}; 40 41class ContextContainer { 42 WTF_MAKE_NONCOPYABLE(ContextContainer); 43public: 44 ContextContainer(GraphicsContext* graphicsContext) 45 : m_graphicsContext(graphicsContext->platformContext()) 46 { 47 } 48 49 CGContextRef context() { return m_graphicsContext; } 50private: 51 PlatformGraphicsContext* m_graphicsContext; 52}; 53 54} 55