Gabriele Cosmo
142 lines
4.7 KiB
C++
142 lines
4.7 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4VViewer.cc,v 1.16 2001/08/14 18:34:47 johna Exp $
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// GEANT4 tag $Name: geant4-05-01 $
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//
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//
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// John Allison 27th March 1996
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// Abstract interface class for graphics views.
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#include "G4VViewer.hh"
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#include "G4ios.hh"
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#include "g4std/strstream"
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#include "G4VisManager.hh"
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#include "G4VGraphicsSystem.hh"
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#include "G4VSceneHandler.hh"
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#include "G4Scene.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4Transform3D.hh"
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G4VViewer::G4VViewer (G4VSceneHandler& sceneHandler,
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G4int id, const G4String& name):
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fSceneHandler (sceneHandler),
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fViewId (id),
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fModified (true),
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fNeedKernelVisit (true)
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{
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if (name == "") {
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char charname [50];
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G4std::ostrstream ost (charname, 50);
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ost << fSceneHandler.GetName () << '-' << fViewId << G4std::ends;
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fName = charname;
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}
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else {
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fName = name;
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}
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fShortName = fName (0, fName.find (' '));
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fShortName.strip ();
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G4VisManager* pVisMan = G4VisManager::GetInstance();
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G4int xHint, yHint;
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pVisMan->GetWindowSizeHint(xHint, yHint);
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fVP.SetWindowSizeHint(xHint,yHint);
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fDefaultVP.SetWindowSizeHint(xHint,yHint);
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}
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G4VViewer::~G4VViewer () {}
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void G4VViewer::SetName (const G4String& name) {
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fName = name;
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fShortName = fName (0, fName.find (' '));
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fShortName.strip ();
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}
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const G4VisAttributes* G4VViewer::GetApplicableVisAttributes
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(const G4VisAttributes* pVisAttribs) const {
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// If the pointer is null, pick up the default vis attributes from
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// the view parameters.
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if (!pVisAttribs)
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pVisAttribs = GetViewParameters ().GetDefaultVisAttributes ();
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return pVisAttribs;
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}
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void G4VViewer::NeedKernelVisit () {
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fNeedKernelVisit = true;
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// At one time I thought we'd better notify all viewers. But I guess
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// each viewer can take care of itself, so the following code is
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// redundant (but keep it commented out for now). (John Allison)
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// Notify all viewers that a kernel visit is required.
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// const G4ViewerList& viewerList = fSceneHandler.GetViewerList ();
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// G4ViewerListConstIterator i;
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// for (i = viewerList.begin(); i != viewerList.end(); i++) {
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// (*i) -> SetNeedKernelVisit ();
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// }
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// ??...but, there's a problem in OpenGL Stored which seems to
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// require *all* viewers to revisit the kernel, so...
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const G4ViewerList& viewerList = fSceneHandler.GetViewerList ();
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G4ViewerListConstIterator i;
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for (i = viewerList.begin(); i != viewerList.end(); i++) {
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(*i) -> SetNeedKernelVisit ();
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}
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}
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void G4VViewer::FinishView () {}
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void G4VViewer::ShowView () {}
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void G4VViewer::ProcessView () {
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// If view parameters have been modified, SetView works out consequences...
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if (fModified) {
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fModified = false;
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SetView ();
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}
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// If ClearStore has been requested, e.g., if the scene has changed,
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// of if the concrete viewer has decided that it necessary to visit
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// the kernel, perhaps because the view parameters have changed
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// drastically (this should be done in the concrete viewer's
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// DrawView)...
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if (fNeedKernelVisit) {
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fSceneHandler.ProcessScene (*this);
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fNeedKernelVisit = false;
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}
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}
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void G4VViewer::SetViewParameters (const G4ViewParameters& vp) {
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fVP = vp;
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fModified = true;
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}
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G4std::ostream& operator << (G4std::ostream& os, const G4VViewer& v) {
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os << "View " << v.fName << ":\n";
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os << v.fVP;
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return os;
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}
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