source: trunk/source/interfaces/common/src/G4Qt.cc@ 875

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//
// $Id: G4Qt.cc,v 1.10 2008/10/24 13:23:22 lgarnier Exp $
// GEANT4 tag $Name:  $
//
// L. Garnier

#if defined(G4INTY_BUILD_QT) || defined(G4INTY_USE_QT)

#include <stdlib.h>
#include <string.h>

#include "G4ios.hh"

#include "G4Qt.hh"

#include <qapplication.h>


G4Qt* G4Qt::instance    = NULL;

static G4bool QtInited  = FALSE;

/***************************************************************************/
G4Qt* G4Qt::getInstance (
) 
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
  return G4Qt::getInstance (0,NULL,(char*)"Geant4");
}
/***************************************************************************/
G4Qt* G4Qt::getInstance (
 int    a_argn
,char** a_args
,char*  a_class
) 
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
  if (instance==NULL) {
    instance = new G4Qt(a_argn,a_args,a_class);
  }
  return instance;
}
/***************************************************************************/
G4Qt::G4Qt (
 int    a_argn
,char** a_args
,char*  a_class
)
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
#ifdef G4DEBUG
  printf("G4Qt::G4Qt try to inited Qt\n");
#endif
  // Check if Qt already init in another external app
  if(qApp) {
      QtInited  = TRUE;
      //#if QT_VERSION < 0x040000
      //      SetMainInteractor (&qApp);
      //#else
      SetMainInteractor (qApp);
      //#endif
      SetArguments      (a_argn,a_args);

#ifdef G4DEBUG
      printf("G4Qt::G4Qt alredy inited in external \n");
#endif
  } else {

    if(QtInited==FALSE) {  //Qt should be Inited once !
      // Then two cases :
      // - It is the first time we create G4UI  (argc!=0)
      //   -> Inited and register
      // - It is the first time we create G4VIS  (arc == 0)
      //   -> Inited and NOT register

      int argc;
      char ** test;
      if (a_argn != 0) {
        SetArguments      (a_argn,a_args);
#ifdef G4DEBUG
      printf("G4Qt::G4Qt inited, first time creating UI \n");
#endif
      } else { //argc = 0
        test = GetArguments(&argc);

#ifdef G4DEBUG

        printf("G4Qt::G4Qt inited, create new QtVis\n");
        printf("G4Qt::G4Qt arguments avant %s\n",a_args[0]);
        printf("G4Qt::G4Qt arguments avant %s\n",a_args[1]);
        printf("G4Qt::G4Qt arguments avant %s\n",a_args[2]);
        printf("G4Qt::G4Qt arguments avant %s\n",a_args[3]);
        printf("G4Qt::G4Qt arguments apres %d\n",argc);
        printf("G4Qt::G4Qt arguments apres %s \n",test[0]);
        printf("G4Qt::G4Qt arguments apres %s \n",test[1]);
        printf("G4Qt::G4Qt arguments apres %s \n",test[2]);
        printf("G4Qt::G4Qt arguments apres %s \n",test[3]);
#endif
        if (argc == 0) {
          G4cout        << "G4Qt : Unable to init Qt." << G4endl;
          return;
        }
      }
#if QT_VERSION < 0x040000
      qApp = new QApplication (a_argn, a_args);
      //    QApplication qApp(a_argn, a_args);
      //    if(&qApp == NULL) {
#else
      new QApplication (a_argn, a_args);
#endif
      
      if(!qApp) {
        
        G4cout        << "G4Qt : Unable to init Qt." << G4endl;
      } else {
        if (a_argn != 0) {
          SetMainInteractor (qApp);
          SetArguments      (a_argn,a_args);
        }
        QtInited  = TRUE;
#ifdef G4DEBUG
        printf("G4Qt::G4Qt inited Qt END\n");
#endif
      }
    }
  }
#ifdef G4DEBUG
  if (qApp) {
    printf("G4Qt::qApp exist\n");
  }  else {
    printf("G4Qt::qApp not exist\n");
  }
#endif
  //  AddDispatcher     ((G4DispatchFunction)XtDispatchEvent);
}
/***************************************************************************/
G4Qt::~G4Qt (
) 
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
  if(this==instance) {
    instance = NULL;
  }
}
/***************************************************************************/
G4bool G4Qt::Inited (
)
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
  return QtInited;
}
/***************************************************************************/
/**
  Si j'ai bien compris, cette fonction ne sert à rien
 */
void* G4Qt::GetEvent (
) 
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
//FIXME
//   G4cout        << "G4Qt : Rien compris a cette fonction G4Qt::GetEvent." << G4endl;
//  static XEvent  event;
//  if(appContext==NULL) return NULL;
//  if(mainApp==NULL) return NULL;
//  QtAppNextEvent (appContext, &event);
//  return         &event;
  printf("*");
  return 0;
}
/***************************************************************************/
void G4Qt::FlushAndWaitExecution (
)
/***************************************************************************/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
{
  //  printf("G4Qt::FlushAndWaitExecution ::  Flush ....\n");
  if(!qApp) return;
  qApp->processEvents();
}

#endif