DVAGMAcquireClip.h

//========================================================================================
// 
// $File$
// 
// Owner: Michael Burbidge
// 
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// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
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#ifndef __DVAGMAcquireClip__
#define __DVAGMAcquireClip__

class IControlView;
class IViewPort;

class DVAGMAcquireClip
{
 public:
 DVAGMAcquireClip(IViewPort* vp, IControlView* view, SysRgn clipRgn = nil);
 
 DVAGMAcquireClip(IViewPort* vp, SysRgn clipRgn);

 ~DVAGMAcquireClip();
 
 SysRgn GetClip() const;
 
 SysRgn GetOriginAdjustedClip() const;

 void SetupPlatformClip();
 
 void TearDownPlatformClip();

 private:
 void SetPlatformClipRgnFromView(IControlView* view, SysRgn clipRgn);
 void SetPlatformClipRgn(SysRgn clipRgn);
 void CommonInit();

 private:
 IViewPort * fVP;
 IControlView * fView;
 SysRgn fClipRgn;
 SysRgn fPrevClipRgn;
 bool16 fClipHasBeenApplied;
 bool16 fClipRgnWasCreated; // i.e. does this object own the fClipRgn?
};

#endif