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geant4/source/visualization/OpenInventor/src/G4SoQt.cc
T
2022-12-09 14:43:28 +01:00

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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. *
// ********************************************************************
//
//
// F.W. Jones 05012018
#include <stdlib.h>
#include <string.h>
#include "G4ios.hh"
#include "G4SoQt.hh"
//#include "G4Qt.hh"
//#include "G4UImanager.hh"
#include <Inventor/Qt/SoQt.h>
#include <QMainWindow>
#include <qwidget.h>
#include <qapplication.h>
#ifndef G4GMAKE
#include "moc_G4SoQt.cpp"
#endif
#define G4warn G4cout
G4SoQt* G4SoQt::instance = NULL;
static G4bool QtInited = FALSE;
/***************************************************************************/
G4SoQt* G4SoQt::getInstance()
{
if (instance==NULL) {
instance = new G4SoQt();
}
return instance;
}
/***************************************************************************/
G4SoQt::G4SoQt()
// FWJ command-line arguments omitted for time being
//G4SoQt* G4SoQt(int a_argn, char** a_args, char*)
{
externalApp = false;
// FWJ in G4Qt this is used. qApp is Qt global pointer
// to the (one and only one) QApplication object:
// new QApplication (*p_argn, args);
// if(!qApp) {
// FWJ detects existence of Qt UI or other running qApp
if (qApp) externalApp = true;
QWidget* mainWin = SoQt::init("Geant4");
// FWJ Cf Xt:
QtInited = TRUE;
// FWJ DEBUG
// G4cout << "G4SoQt: mainWin=" << mainWin << G4endl;
// G4cout << "G4SoQt: toplevelwidget=" << SoQt::getTopLevelWidget() << G4endl;
// FWJ CAN'T GET MENUBAR THIS WAY OR BY CAST
// QWidget* toplevel = SoQt::getTopLevelWidget();
// QMenuBar* menubar = QMainWindow::menuBar();
// G4cout << "G4OpenInventorQtExaminerViewer menubar=" << menubar << G4endl;
// FWJ will this work?
SetMainInteractor(mainWin);
// SetMainInteractor(qApp);
// AddDispatcher ((G4DispatchFunction)XtDispatchEvent);
// FWJ no locale for now (see G4Qt.cc)
}
/***************************************************************************/
G4SoQt::~G4SoQt()
{
if(this==instance) {
instance = NULL;
}
}
G4bool G4SoQt::Inited()
{
return QtInited;
}
/***************************************************************************/
void* G4SoQt::GetEvent()
{
return 0;
}
/***************************************************************************/
void G4SoQt::FlushAndWaitExecution()
{
// FWJ the following is used in G4Qt:
// if(!qApp) return;
// This starts the Qt main loop:
// qApp->processEvents();
// FWJ no, should be done in secondaryLoop()!
// SoQt::mainLoop();
}
/***************************************************************************/
void G4SoQt::SecondaryLoop()
{
if (externalApp) return;
// FWJ DEBUG
// G4cout <<
// "ENTERING OIQT VIEWER SECONDARY LOOP" << G4endl;
// else
G4warn <<
"ENTERING OIQT VIEWER SECONDARY LOOP... PRESS E KEY TO EXIT" << G4endl;
SoQt::mainLoop();
}
/***************************************************************************/
void G4SoQt::ExitSecondaryLoop()
{
// FWJ DEBUG
// G4cout << "G4SoQt: EXIT SECONDARY LOOP externalApp=" <<
// externalApp << G4endl;
if (externalApp) return;
SoQt::exitMainLoop();
}
/***************************************************************************/
bool G4SoQt::IsExternalApp()
{
return externalApp;
}