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geant4/source/visualization/Vtk/src/G4VtkQt.cc
T
2021-12-10 16:15:15 +00:00

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C++

//
// ********************************************************************
// * 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. *
// ********************************************************************
#include "G4VtkQt.hh"
#include "G4VtkQtSceneHandler.hh"
#include "G4VtkQtViewer.hh"
#include "G4UIQt.hh"
#include "G4UImanager.hh"
#include "G4UIbatch.hh"
G4VtkQt::G4VtkQt(): G4VGraphicsSystem("VtkQt","VTKQt","VTK with Qt",
G4VGraphicsSystem::noFunctionality)
{}
G4VtkQt::~G4VtkQt() {}
G4VSceneHandler* G4VtkQt::CreateSceneHandler(const G4String& name) {
G4VSceneHandler* pScene = new G4VtkQtSceneHandler(*this, name);
return pScene;
}
G4VViewer* G4VtkQt::CreateViewer(G4VSceneHandler& scene,
const G4String& name) {
G4VViewer* pView = new G4VtkQtViewer((G4VtkQtSceneHandler&) scene, name);
if (pView) {
if (pView->GetViewId() < 0) {
G4cerr << "G4VtkQt::CreateViewer: ERROR flagged by negative"
" view id in G4VtkViewer creation."
"\n Destroying view and returning null pointer."
<< G4endl;
delete pView;
pView = nullptr;
}
}
else {
G4cerr << "G4Vtk::CreateViewer: ERROR: null pointer on new G4VtkViewer." << G4endl;
}
return pView;
}
G4bool G4VtkQt::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;
}