QuartzUtils.h

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// @(#)root/graf2d:$Id$
// Author: Timur Pocheptsov, 11/06/2012

/*************************************************************************
 * Copyright (C) 1995-2011, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/

#ifndef ROOT_QuartzUtils
#define ROOT_QuartzUtils

#include <ApplicationServices/ApplicationServices.h>

#ifndef ROOT_CocoaUtils
#include "CocoaUtils.h"
#endif

namespace ROOT {
namespace Quartz {

//Scope guard class for CGContextRef.
class CGStateGuard {
public:
   explicit CGStateGuard(MacOSX::Util::CFScopeGuard<CGContextRef> &ctx);
   explicit CGStateGuard(CGContextRef ctx);
   ~CGStateGuard();

private:
   CGContextRef fCtx;

   CGStateGuard(const CGStateGuard &rhs);
   CGStateGuard &operator = (const CGStateGuard &rhs);
};

//Scope guard for AA flag (due to some reason it's not
//saved/restored as a part of a context state).
class CGAAStateGuard {
public:
   CGAAStateGuard(CGContextRef ctx, bool enable);
   ~CGAAStateGuard();

private:
   CGContextRef fCtx;
   bool fEnable;

   CGAAStateGuard(const CGAAStateGuard &rhs);
   CGAAStateGuard &operator = (const CGAAStateGuard &rhs);

};

}
}

#endif