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geant4/source/visualization/ToolsSG/src/G4ToolsSGQtGLES.cc
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2022-07-01 10:44:02 +02:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// Guy Barrand 12th March 2021
#include "G4ToolsSGQtGLES.hh"
#define G4TOOLSSG_QT_VIEWER_IN_TAB
#ifdef G4TOOLSSG_QT_VIEWER_IN_TAB
#include "G4ToolsSGQtViewer.hh"
#else
#include "G4ToolsSGViewer.hh"
#include <toolx/Qt/sg_viewer>
#endif
#include "G4UIbatch.hh"
#include <tools/argcv>
G4ToolsSGQtGLES::G4ToolsSGQtGLES():
parent
("TOOLSSG_QT_GLES",
"TSG_QT_GLES",
"TOOLSSG_QT_GLES is a graphics driver based on the g4tools tools/sg scene graph logic where\n\
the rendering is done with GLES and the windowing is done with Qt.",
parent::threeDInteractive)
,fSGSession(nullptr)
{}
G4ToolsSGQtGLES::~G4ToolsSGQtGLES() {
delete fSGSession;
}
void G4ToolsSGQtGLES::Initialise() {
if(fSGSession) return; //done.
int* argc = new int;
char** argv = nullptr;
std::vector<std::string> args;args.push_back("");
tools::new_argcv(args,*argc,argv);
fSGSession = new toolx::Qt::session(G4cout,*argc,argv);
if(!fSGSession->is_valid()) {
G4cerr << "G4ToolsSGQtGLES::Initialise : session::is_valid() failed." << G4endl;
delete fSGSession;
fSGSession = nullptr;
return;
}
}
G4VSceneHandler* G4ToolsSGQtGLES::CreateSceneHandler(const G4String& a_name) {
G4VSceneHandler* pScene = new G4ToolsSGSceneHandler(*this, a_name);
return pScene;
}
G4VViewer* G4ToolsSGQtGLES::CreateViewer(G4VSceneHandler& a_scene,const G4String& a_name) {
if(!fSGSession) Initialise();
if(!fSGSession) return nullptr;
G4VViewer* pView =
#ifdef G4TOOLSSG_QT_VIEWER_IN_TAB
new G4ToolsSGQtViewer(*fSGSession,(G4ToolsSGSceneHandler&)a_scene,a_name);
#else
new G4ToolsSGViewer<toolx::Qt::session,toolx::Qt::sg_viewer>(*fSGSession,(G4ToolsSGSceneHandler&)a_scene,a_name);
#endif
if (pView) {
if (pView->GetViewId() < 0) {
G4cerr << "G4ToolsSGQtGLES::CreateViewer:"
<< " ERROR flagged by negative view id in G4ToolsSGViewer creation."
<< "\n Destroying view and returning null pointer." << G4endl;
delete pView;
pView = nullptr;
}
}
if (!pView) {
G4cerr << "G4ToolsSGQtGLES::CreateViewer: ERROR: null pointer on new G4ToolsSGViewer." << G4endl;
return nullptr;
}
return pView;
}
G4bool G4ToolsSGQtGLES::IsUISessionCompatible () const
{
G4bool isCompatible = false;
G4UImanager* ui = G4UImanager::GetUIpointer();
G4UIsession* session = ui->GetSession();
// If session is a batch session, it may be:
// a) this is a batch job (the user has not instantiated any UI session);
// b) we are currently processing a UI command, in which case the UI
// manager creates a temporary batch session and to find out if there is
// a genuine UI session that the user has instantiated we must drill
// down through previous sessions to a possible non-batch session.
while (G4UIbatch* batch = dynamic_cast<G4UIbatch*>(session)) {
session = batch->GetPreviousSession();
}
// Qt windows are only appropriate in a Qt session.
if (session) {
// If non-zero, this is the originating non-batch session
// The user has instantiated a UI session...
if (dynamic_cast<G4UIQt*>(session)) {
// ...and it's a G4UIQt session, which is OK.
isCompatible = true;
}
}
return isCompatible;
}