The TGLRnrCtx class aggregates data for a given redering context as needed by various parts of the ROOT's OpenGL infrastructure.
It serves as a connecting point between the steering part of the infrastructure (viewer, scene) and concrete rendering classes (logical, physical shape). It is just a data-holder, there is no functionality in it.
Development notes:
One RnrCtx is created by each viewer and it is just an extension of the viewer context that changes along the render descend. Separating this also has some abstract benefit of hiding viewer implementation from those that do not need to know it.
Current scene / scene-info part is always initialized by viewer, scenes can assume they're ok.
Definition at line 40 of file TGLRnrCtx.h.
Public Types | |
enum | ELODPresets { kLODUndef = -1 , kLODPixel = 0 , kLODLow = 20 , kLODMed = 50 , kLODHigh = 100 } |
enum | EPass { kPassUndef = -1 , kPassFill , kPassOutlineFill , kPassOutlineLine , kPassWireFrame } |
enum | ESelectabilityOfTransparents { kIfNoOpaques = 0 , kIfClosest , kNever } |
enum | EShapeSelectionLevel { kSSLNotSelected , kSSLSelected , kSSLImpliedSelected , kSSLHighlighted , kSSLImpliedHighlighted , kSSLEnd } |
enum | EStyle { kStyleUndef = -1 , kFill , kOutline , kWireFrame } |
Static Public Member Functions | |
static const char * | StyleName (Short_t style) |
Return string describing the style. More... | |
Protected Attributes | |
TGLCamera * | fCamera |
TGLClip * | fClip |
lpTGLColorSet_t * | fColorSetStack |
Short_t | fCombiLOD |
Bool_t | fDLCaptureOpen |
Short_t | fDrawPass |
UInt_t | fEventKeySym |
TGLContextIdentity * | fGLCtxIdentity |
DL-capture currently open. More... | |
UChar_t * | fGrabbedImage |
Int_t | fGrabBuffer |
Bool_t | fGrabImage |
Bool_t | fHasTimedOut |
Bool_t | fHighlight |
Bool_t | fHighlightOutline |
Bool_t | fIsRunning |
Int_t | fPickRadius |
TGLRect * | fPickRectangle |
GLUquadric * | fQuadric |
Current GL context identity. More... | |
Float_t | fRenderScale |
Double_t | fRenderTimeOut |
TGLClip * | fSceneClip |
TGLSceneInfo * | fSceneInfo |
Short_t | fSceneLOD |
Float_t | fSceneOLLineW |
Short_t | fSceneStyle |
Float_t | fSceneWFLineW |
Bool_t | fSecSelection |
TGLSelectBuffer * | fSelectBuffer |
Bool_t | fSelection |
Short_t | fSelectTransparents |
Short_t | fShapeLOD |
Float_t | fShapePixSize |
TGLStopwatch | fStopwatch |
TGLViewerBase * | fViewer |
TGLClip * | fViewerClip |
Short_t | fViewerLOD |
Float_t | fViewerOLLineW |
Short_t | fViewerStyle |
Float_t | fViewerWFLineW |
Private Types | |
typedef std::list< TGLColorSet * > | lpTGLColorSet_t |
Private Member Functions | |
TGLRnrCtx (const TGLRnrCtx &) | |
TGLRnrCtx & | operator= (const TGLRnrCtx &) |
#include <TGLRnrCtx.h>
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Definition at line 91 of file TGLRnrCtx.h.
Enumerator | |
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kLODUndef | |
kLODPixel | |
kLODLow | |
kLODMed | |
kLODHigh |
Definition at line 61 of file TGLRnrCtx.h.
enum TGLRnrCtx::EPass |
Enumerator | |
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kPassUndef | |
kPassFill | |
kPassOutlineFill | |
kPassOutlineLine | |
kPassWireFrame |
Definition at line 52 of file TGLRnrCtx.h.
Enumerator | |
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kIfNoOpaques | |
kIfClosest | |
kNever |
Definition at line 80 of file TGLRnrCtx.h.
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kSSLNotSelected | |
kSSLSelected | |
kSSLImpliedSelected | |
kSSLHighlighted | |
kSSLImpliedHighlighted | |
kSSLEnd |
Definition at line 70 of file TGLRnrCtx.h.
enum TGLRnrCtx::EStyle |
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kStyleUndef | |
kFill | |
kOutline | |
kWireFrame |
Definition at line 43 of file TGLRnrCtx.h.
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TGLRnrCtx::TGLRnrCtx | ( | TGLViewerBase * | viewer | ) |
Definition at line 57 of file TGLRnrCtx.cxx.
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Destructor.
Definition at line 124 of file TGLRnrCtx.cxx.
Setup context for running selection.
x and y are in window coordinates.
Definition at line 205 of file TGLRnrCtx.cxx.
TGLColorSet * TGLRnrCtx::ChangeBaseColorSet | ( | TGLColorSet * | set | ) |
Change the default/bottom color-set.
Returns the previous color-set.
Definition at line 304 of file TGLRnrCtx.cxx.
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Definition at line 200 of file TGLRnrCtx.h.
void TGLRnrCtx::CloseDLCapture | ( | ) |
End display list capture.
Definition at line 347 of file TGLRnrCtx.cxx.
Set col if it is different from background, otherwise use current foreground color.
Definition at line 323 of file TGLRnrCtx.cxx.
TGLColorSet & TGLRnrCtx::ColorSet | ( | ) |
Return reference to current color-set (top of the stack).
Definition at line 278 of file TGLRnrCtx.cxx.
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Definition at line 175 of file TGLRnrCtx.h.
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Definition at line 204 of file TGLRnrCtx.h.
End selection.
Definition at line 219 of file TGLRnrCtx.cxx.
TGLColorSet * TGLRnrCtx::GetBaseColorSet | ( | ) |
Returns the current base color-set.
Definition at line 314 of file TGLRnrCtx.cxx.
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Definition at line 156 of file TGLRnrCtx.h.
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Definition at line 254 of file TGLRnrCtx.h.
GLUquadric * TGLRnrCtx::GetGluQuadric | ( | ) |
Initialize fQuadric.
Definition at line 405 of file TGLRnrCtx.cxx.
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Definition at line 267 of file TGLRnrCtx.h.
Int_t TGLRnrCtx::GetPickRadius | ( | ) |
Return pick radius. If selection is not active it returns 0.
Definition at line 257 of file TGLRnrCtx.cxx.
TGLRect * TGLRnrCtx::GetPickRectangle | ( | ) |
Return current pick rectangle.
This is zero when selection is not set.
Definition at line 249 of file TGLRnrCtx.cxx.
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Definition at line 244 of file TGLRnrCtx.h.
TGLSceneBase * TGLRnrCtx::GetScene | ( | ) |
Return current scene (based on scene-info data).
Definition at line 135 of file TGLRnrCtx.cxx.
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Definition at line 158 of file TGLRnrCtx.h.
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Bool_t TGLRnrCtx::HasStopwatchTimedOut | ( | ) |
Check if the stopwatch went beyond the render time limit.
Definition at line 188 of file TGLRnrCtx.cxx.
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Definition at line 250 of file TGLRnrCtx.h.
Bool_t TGLRnrCtx::IsDrawPassFilled | ( | ) | const |
Returns true if current render-pass uses filled polygon style.
Definition at line 153 of file TGLRnrCtx.cxx.
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Definition at line 207 of file TGLRnrCtx.h.
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Definition at line 214 of file TGLRnrCtx.h.
void TGLRnrCtx::OpenDLCapture | ( | ) |
Start display-list capture.
Definition at line 338 of file TGLRnrCtx.cxx.
void TGLRnrCtx::PopColorSet | ( | ) |
Pops the top-most color-set.
If only one entry is available, error is printed and the entry remains.
Definition at line 287 of file TGLRnrCtx.cxx.
void TGLRnrCtx::ProjectionMatrixPop | ( | ) |
Definition at line 438 of file TGLRnrCtx.cxx.
void TGLRnrCtx::ProjectionMatrixPushIdentity | ( | ) |
Definition at line 423 of file TGLRnrCtx.cxx.
void TGLRnrCtx::PushColorSet | ( | ) |
Create copy of current color-set on the top of the stack.
Definition at line 270 of file TGLRnrCtx.cxx.
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Definition at line 157 of file TGLRnrCtx.h.
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Definition at line 163 of file TGLRnrCtx.h.
TGLSceneBase & TGLRnrCtx::RefScene | ( | ) |
Return current scene (based on scene-info data).
Definition at line 143 of file TGLRnrCtx.cxx.
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Definition at line 159 of file TGLRnrCtx.h.
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Definition at line 155 of file TGLRnrCtx.h.
Get font in the GL rendering context.
The font is scaled relative to current render scale.
Definition at line 393 of file TGLRnrCtx.cxx.
Get font in the GL rendering context.
The font is scaled relative to current render scale.
Definition at line 384 of file TGLRnrCtx.cxx.
Get font in the GL rendering context.
Definition at line 375 of file TGLRnrCtx.cxx.
Get font in the GL rendering context.
Definition at line 367 of file TGLRnrCtx.cxx.
Release font in the GL rendering context.
Definition at line 359 of file TGLRnrCtx.cxx.
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void TGLRnrCtx::StartStopwatch | ( | ) |
Start the stopwatch.
Definition at line 166 of file TGLRnrCtx.cxx.
void TGLRnrCtx::StopStopwatch | ( | ) |
Stop the stopwatch.
Definition at line 179 of file TGLRnrCtx.cxx.
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Return string describing the style.
Definition at line 453 of file TGLRnrCtx.cxx.
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DL-capture currently open.
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Current GL context identity.
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