00001 // @(#)root/gl:$Id: TGLSceneInfo.h 29676 2009-08-04 16:18:07Z matevz $ 00002 // Author: Matevz Tadel, Feb 2007 00003 00004 /************************************************************************* 00005 * Copyright (C) 1995-2004, Rene Brun and Fons Rademakers. * 00006 * All rights reserved. * 00007 * * 00008 * For the licensing terms see $ROOTSYS/LICENSE. * 00009 * For the list of contributors see $ROOTSYS/README/CREDITS. * 00010 *************************************************************************/ 00011 00012 #ifndef ROOT_TGLSceneInfo_H 00013 #define ROOT_TGLSceneInfo_H 00014 00015 #include "Rtypes.h" 00016 00017 #include "TGLBoundingBox.h" 00018 #include "TGLUtil.h" 00019 00020 class TGLViewerBase; 00021 class TGLSceneBase; 00022 class TGLClip; 00023 class TGLRenderContext; 00024 class TGLCamera; 00025 00026 class TGLSceneInfo 00027 { 00028 friend class TGLSceneBase; 00029 00030 public: 00031 enum EClipTest { kClipNone, kClipOutside, kClipInside }; 00032 00033 private: 00034 TGLSceneInfo(const TGLSceneInfo&); // Not implemented 00035 TGLSceneInfo& operator=(const TGLSceneInfo&); // Not implemented 00036 00037 protected: 00038 TGLViewerBase * fViewer; 00039 TGLSceneBase * fScene; 00040 Bool_t fActive; // Show fScene in fViewer 00041 00042 Short_t fLOD; // Optional override of scene lod 00043 Short_t fStyle; // Optional override of scene style 00044 Float_t fWFLineW; // Optional override of scene wire-frame line-width 00045 Float_t fOLLineW; // Optional override of scene outline line-width 00046 TGLClip * fClip; // Optional override of clipping-plane 00047 00048 Short_t fLastLOD; // Last combined viewer/scene lod (set in scene::lodify-scene-info). 00049 Short_t fLastStyle; // Last combined viewer/scene style (set in scene::pre-draw). 00050 Float_t fLastWFLineW; // Last combined viewer/scene wire-frame line-width (set in scene::pre-draw). 00051 Float_t fLastOLLineW; // Last combined viewer/scene outline line-width (set in scene::pre-draw). 00052 TGLClip * fLastClip; // Last combined viewer/scene clip (set in scene::update) 00053 TGLCamera * fLastCamera; // Last camera used. 00054 00055 UInt_t fSceneStamp; // Scene's time-stamp on last update. 00056 UInt_t fClipStamp; // Clip's time-stamp on last update. 00057 UInt_t fCameraStamp; // Camera's time-stamp on last update. 00058 Bool_t fUpdateTimeouted; // Set if update was interrupted. 00059 00060 // Eventually we will allow additional per-scene transforamtion. 00061 // TGLMatrix fSceneTrans; 00062 // Also needed: 00063 // *) transformed clipping planes of the camera 00064 // *) transformed bounding-box of the scene 00065 TGLBoundingBox fTransformedBBox; 00066 00067 Bool_t fViewCheck; // Viewer side check if render is necessary. 00068 Bool_t fInFrustum; // Is scene intersecting view-frustum. 00069 Bool_t fInClip; // Is scene contained within clipping-volume. 00070 Char_t fClipMode; // Clipping mode, can be disbled. 00071 TGLPlaneSet_t fFrustumPlanes; // Clipping planes defined by frustum; only those intersecting the scene volume are kept. 00072 TGLPlaneSet_t fClipPlanes; // Clipping planes from clip-object; which planes are kept depends on inside/outside mode. 00073 00074 // Additional stuff (scene-class specific) can be added by sub-classing. 00075 // For TGLScene these data include draw-lists after clipping. 00076 00077 public: 00078 TGLSceneInfo(TGLViewerBase* view=0, TGLSceneBase* scene=0); 00079 virtual ~TGLSceneInfo() {} 00080 00081 TGLViewerBase * GetViewer() const { return fViewer; } 00082 TGLViewerBase & RefViewer() const { return *fViewer; } 00083 TGLSceneBase * GetScene() const { return fScene; } 00084 TGLSceneBase & RefScene() const { return *fScene; } 00085 00086 Bool_t GetActive() const { return fActive; } 00087 void SetActive(Bool_t a); 00088 00089 void SetupTransformsAndBBox(); 00090 00091 const TGLBoundingBox& GetTransformedBBox() { return fTransformedBBox; } 00092 00093 virtual void SetSceneTrans(TGLMatrix&) { ResetSceneStamp(); } 00094 00095 Bool_t ViewCheck() const { return fViewCheck; } 00096 void ViewCheck(Bool_t c) { fViewCheck = c; } 00097 Bool_t IsInFrustum() const { return fInFrustum; } 00098 void InFrustum(Bool_t f) { fInFrustum = f; } 00099 Bool_t IsInClip() const { return fInClip; } 00100 void InClip(Bool_t c) { fInClip = c; } 00101 Char_t ClipMode() const { return fClipMode; } 00102 void ClipMode(Char_t m) { fClipMode = m; } 00103 00104 Bool_t ShouldClip() const { return fClipMode != kClipNone; } 00105 Bool_t IsVisible() const { return fInFrustum && fInClip; } 00106 00107 std::vector<TGLPlane>& FrustumPlanes() { return fFrustumPlanes; } 00108 std::vector<TGLPlane>& ClipPlanes() { return fClipPlanes; } 00109 00110 Short_t LOD() const { return fLOD; } 00111 void SetLOD(Short_t lod) { fLOD = lod; } 00112 00113 Short_t Style() const { return fStyle; } 00114 void SetStyle(Short_t st) { fStyle = st; } 00115 00116 Float_t WFLineW() const { return fWFLineW; } 00117 void SetWFLineW(Float_t w) { fWFLineW = w; } 00118 Float_t OLLineW() const { return fOLLineW; } 00119 void SetOLLineW(Float_t w) { fOLLineW = w; } 00120 00121 TGLClip* Clip() const { return fClip; } 00122 void SetClip(TGLClip *p) { fClip = p; } 00123 00124 Short_t LastLOD() const { return fLastLOD; } 00125 void SetLastLOD(Short_t ld) { fLastLOD = ld; } 00126 00127 Short_t LastStyle() const { return fLastStyle; } 00128 void SetLastStyle(Short_t st) { fLastStyle = st; } 00129 00130 Float_t LastWFLineW() const { return fLastWFLineW; } 00131 void SetLastWFLineW(Float_t w) { fLastWFLineW = w; } 00132 Float_t LastOLLineW() const { return fLastOLLineW; } 00133 void SetLastOLLineW(Float_t w) { fLastOLLineW = w; } 00134 00135 TGLClip* LastClip() const { return fLastClip; } 00136 void SetLastClip(TGLClip *p) { fLastClip = p; } 00137 00138 TGLCamera* LastCamera() const { return fLastCamera; } 00139 void SetLastCamera(TGLCamera *p) { fLastCamera = p; } 00140 00141 UInt_t SceneStamp() const { return fSceneStamp; } 00142 void SetSceneStamp(UInt_t ts) { fSceneStamp = ts; } 00143 void ResetSceneStamp() { fSceneStamp = 0; } 00144 00145 UInt_t ClipStamp() const { return fClipStamp; } 00146 void SetClipStamp(UInt_t ts) { fClipStamp = ts; } 00147 void ResetClipStamp() { fClipStamp = 0; } 00148 00149 UInt_t CameraStamp() const { return fCameraStamp; } 00150 void SetCameraStamp(UInt_t ts) { fCameraStamp = ts; } 00151 void ResetCameraStamp() { fCameraStamp = 0; } 00152 00153 Bool_t HasUpdateTimeouted() const { return fUpdateTimeouted; } 00154 void UpdateTimeouted() { fUpdateTimeouted = kTRUE; } 00155 void ResetUpdateTimeouted() { fUpdateTimeouted = kFALSE; } 00156 00157 ClassDef(TGLSceneInfo, 0) // Data about a scene within a viewer context. 00158 }; // endclass TGLSceneInfo 00159 00160 00161 #endif
1.5.1