/usr/include/root/TGLClip.h is in libroot-graf3d-gl-dev 5.34.19+dfsg-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Richard Maunder 16/09/2005
/*************************************************************************
* Copyright (C) 1995-2005, 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_TGLClip
#define ROOT_TGLClip
#include "TGLPhysicalShape.h"
#include "TGLOverlay.h"
class TGLRnrCtx;
class TGLManipSet;
//////////////////////////////////////////////////////////////////////////
// //
// TGLClip //
// //
// Abstract clipping shape - derives from TGLPhysicalShape //
// Adds clip mode (inside/outside) and pure virtual method to //
// approximate shape as set of planes. This plane set is used to perform//
// interactive clipping using OpenGL clip planes. //
//////////////////////////////////////////////////////////////////////////
class TGLClip : public TGLPhysicalShape
{
public:
enum EMode
{
kOutside, // Clip away what's outside
kInside // Clip away what's inside
};
enum EType
{
kClipNone = 0,
kClipPlane,
kClipBox
};
protected:
EMode fMode;
UInt_t fTimeStamp;
Bool_t fValid;
public:
TGLClip(const TGLLogicalShape & logical, const TGLMatrix & transform, const float color[4]);
virtual ~TGLClip();
virtual void Modified() { TGLPhysicalShape::Modified(); IncTimeStamp(); }
virtual void Setup(const TGLBoundingBox & bbox) = 0;
virtual void Setup(const TGLVector3&, const TGLVector3&);
EMode GetMode() const { return fMode; }
void SetMode(EMode mode) { if (mode != fMode) { fMode = mode; ++fTimeStamp; } }
UInt_t TimeStamp() const { return fTimeStamp; }
void IncTimeStamp() { ++fTimeStamp; }
Bool_t IsValid() const { return fValid; }
void Invalidate() { fValid = kFALSE; }
virtual void Draw(TGLRnrCtx & rnrCtx) const;
virtual void PlaneSet(TGLPlaneSet_t & set) const = 0;
ClassDef(TGLClip,0); // abstract clipping object
};
//////////////////////////////////////////////////////////////////////////
// //
// TGLClipPlane //
// //
// Concrete clip plane object. This can be translated in all directions //
// rotated about the Y/Z local axes (the in-plane axes). It cannot be //
// scaled. //
// //
//////////////////////////////////////////////////////////////////////////
class TGLClipPlane : public TGLClip
{
private:
static const float fgColor[4]; //! Fixed color of clip plane
public:
TGLClipPlane();
virtual ~TGLClipPlane();
virtual void Setup(const TGLBoundingBox & bbox);
virtual void Setup(const TGLVector3& point, const TGLVector3& normal);
void Set(const TGLPlane & plane);
virtual void PlaneSet(TGLPlaneSet_t & set) const;
ClassDef(TGLClipPlane, 0); // clipping plane
};
//////////////////////////////////////////////////////////////////////////
// //
// TGLClipBox //
// //
// Concrete clip box object. Can be translated, rotated and scaled in //
// all (xyz) axes. //
// //
//////////////////////////////////////////////////////////////////////////
class TGLClipBox : public TGLClip
{
private:
static const float fgColor[4]; //! Fixed color of clip box
public:
TGLClipBox();
virtual ~TGLClipBox();
virtual void Setup(const TGLBoundingBox & bbox);
virtual void Setup(const TGLVector3& min_point, const TGLVector3& max_point);
virtual void PlaneSet(TGLPlaneSet_t & set) const;
ClassDef(TGLClipBox, 0); // clipping box
};
//////////////////////////////////////////////////////////////////////////
//
// TGLClipSet
//
// A collection of all available clipping objects, to be used by higher
// level objects. For the time being by TGLViewer/Scene.
//
//////////////////////////////////////////////////////////////////////////
class TGLClipSet : public TGLOverlayElement
{
private:
TGLClipSet(const TGLClipSet&); // Not implemented
TGLClipSet& operator=(const TGLClipSet&); // Not implemented
protected:
TGLClipPlane *fClipPlane;
TGLClipBox *fClipBox;
TGLClip *fCurrentClip; //! the current clipping shape
Bool_t fAutoUpdate;
Bool_t fShowClip;
Bool_t fShowManip;
TGLManipSet *fManip;
TGLBoundingBox fLastBBox;
public:
TGLClipSet();
virtual ~TGLClipSet();
virtual Bool_t MouseEnter(TGLOvlSelectRecord& selRec);
virtual Bool_t MouseStillInside(TGLOvlSelectRecord& selRec);
virtual Bool_t Handle(TGLRnrCtx& rnrCtx, TGLOvlSelectRecord& selRec,
Event_t* event);
virtual void MouseLeave();
virtual void Render(TGLRnrCtx& rnrCtx);
Bool_t IsClipping() const { return fCurrentClip != 0; }
TGLClip* GetCurrentClip() const { return fCurrentClip; }
void FillPlaneSet(TGLPlaneSet_t& set) const;
// Clipping
void SetupClips(const TGLBoundingBox& sceneBBox);
void SetupCurrentClip(const TGLBoundingBox& sceneBBox);
void SetupCurrentClipIfInvalid(const TGLBoundingBox& sceneBBox);
void InvalidateClips();
void InvalidateCurrentClip();
void GetClipState(TGLClip::EType type, Double_t data[6]) const;
void SetClipState(TGLClip::EType type, const Double_t data[6]);
TGLClip::EType GetClipType() const;
void SetClipType(TGLClip::EType type);
// Clip control flags
Bool_t GetAutoUpdate() const { return fAutoUpdate; }
void SetAutoUpdate(Bool_t aup) { fAutoUpdate = aup; }
Bool_t GetShowManip() const { return fShowManip; }
void SetShowManip(Bool_t show) { fShowManip = show; }
Bool_t GetShowClip() const { return fShowClip; }
void SetShowClip(Bool_t show) { fShowClip = show; }
ClassDef(TGLClipSet, 0); // A collection of supported clip-objects
};
#endif
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