65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/*
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* Copyright (C) 2006-2020 Apple Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "GraphicsContext.h"
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#include <wtf/Noncopyable.h>
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#if PLATFORM(COCOA)
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#if USE(APPKIT)
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OBJC_CLASS NSGraphicsContext;
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#endif
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namespace WebCore {
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// This class automatically saves and restores the current NSGraphicsContext for
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// functions which call out into AppKit and rely on the currentContext being set
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class LocalCurrentGraphicsContext {
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WTF_MAKE_NONCOPYABLE(LocalCurrentGraphicsContext);
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public:
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WEBCORE_EXPORT LocalCurrentGraphicsContext(GraphicsContext&);
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WEBCORE_EXPORT ~LocalCurrentGraphicsContext();
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CGContextRef cgContext() { return m_savedGraphicsContext.platformContext(); }
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private:
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GraphicsContext& m_savedGraphicsContext;
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#if USE(APPKIT)
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RetainPtr<NSGraphicsContext> m_savedNSGraphicsContext;
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#endif
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bool m_didSetGraphicsContext { false };
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};
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class ContextContainer {
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WTF_MAKE_NONCOPYABLE(ContextContainer);
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public:
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ContextContainer(GraphicsContext& graphicsContext)
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: m_graphicsContext(graphicsContext.platformContext())
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{
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}
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CGContextRef context() { return m_graphicsContext; }
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private:
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CGContextRef m_graphicsContext;
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};
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}
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#endif // PLATFORM(COCOA)
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