source: trunk/geant4/visualization/OpenGL/src/G4OpenGLQtViewer.cc @ 539

//
// ********************************************************************
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// * technical work of the GEANT4 collaboration.                      *
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//
//
// $Id: G4OpenGLQtViewer.cc,v 1.17 2006/06/29 21:19:36 gunter Exp $
// GEANT4 tag $Name: geant4-08-01-patch-01 $
//
// 
// G4OpenGLQtViewer : Class to provide Qt specific
//                     functionality for OpenGL in GEANT4
//
// 27/06/2003 : G.Barrand : implementation (at last !).

#ifdef G4VIS_BUILD_OPENGLQT_DRIVER

#include "G4OpenGLQtViewer.hh"

#include "G4ios.hh"
#include "G4VisExtent.hh"
#include "G4LogicalVolume.hh"
#include "G4VSolid.hh"
#include "G4Point3D.hh"
#include "G4Normal3D.hh"

#include "G4Qt.hh"
#include "G4UIManager.hh"
#include <QtGui/qboxlayout.h>
#include <QtGui/qdialog.h>
#include <QtGui/qpushbutton.h>

//////////////////////////////////////////////////////////////////////////////
/**
  Implementation of virtual method of G4VViewer
 */
void G4OpenGLQtViewer::SetView (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::SetView \n");
//   if(!fHDC) return;
//   if(!fHGLRC) return;
//   ::wglMakeCurrent(fHDC,fHGLRC);
//   G4OpenGLViewer::SetView ();  
}

//////////////////////////////////////////////////////////////////////////////
/**
  Implementation of virtual method of G4VViewer
 */
void G4OpenGLQtViewer::ClearView (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::ClearView \n");
}


//////////////////////////////////////////////////////////////////////////////
/**
  Implementation of virtual method of G4VViewer
 */
void G4OpenGLQtViewer::DrawView (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::DrawView \n");
}

//////////////////////////////////////////////////////////////////////////////
/**
  Implementation of virtual method of G4VViewer
 */
void G4OpenGLQtViewer::ShowView (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::ShowView \n");
//   if(!fHDC) return;
//   glFlush ();
//   // Empty the Windows message queue :
//   MSG event;
//   while ( ::PeekMessage(&event, NULL, 0, 0, PM_REMOVE) ) {
//     ::TranslateMessage(&event);
//     ::DispatchMessage (&event);
//   }
}


// //////////////////////////////////////////////////////////////////////////////
// void G4OpenGLQtViewer::GetQtConnection (
// ) 
// //////////////////////////////////////////////////////////////////////////////
// //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
// {
// }

//////////////////////////////////////////////////////////////////////////////
void G4OpenGLQtViewer::CreateGLQtContext (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::CreateGLQtContext \n");
}

//////////////////////////////////////////////////////////////////////////////
void G4OpenGLQtViewer::CreateMainWindow (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{

  if(fWindow) return; //Done.
  printf("G4OpenGLQtViewer::CreateMainWindow 2\n");

  // launch Qt if not
  G4Qt* interactorManager = G4Qt::getInstance ();
  //  G4UImanager* UI = G4UImanager::GetUIpointer();
  printf("G4OpenGLQtViewer::CreateMainWindow 3\n");

  QPushButton hello("Hello world!");
  hello.resize(100, 30);
  hello.show();

  fWindow = new QGLWidget() ;
  fWindow->makeCurrent();

  // create window
  QDialog* GLWindow ;
  if (qApp) {
    GLWindow = new QDialog();//qApp->mainWidget());
  } else {
    GLWindow = new QDialog();
  }

  QHBoxLayout *mainLayout = new QHBoxLayout;
  mainLayout->addWidget(fWindow);
  GLWindow->setLayout(mainLayout);
  GLWindow->setWindowTitle("QGl Viewer");
  GLWindow->resize(100, 30);
  GLWindow->show();


//   // Bill Gates stuff...
//   static const char className[] = "G4OpenGLQt";
//   static bool done = false;
//   if(done==false) {
//     WNDCLASS wc;
//     wc.style = CS_HREDRAW | CS_VREDRAW;
//     wc.lpfnWndProc = (WNDPROC)WindowProc;
//     wc.cbClsExtra = 0;
//     wc.cbWndExtra = 0;
//     wc.hInstance = ::GetModuleHandle(NULL);
//     wc.hIcon = LoadIcon  (NULL, IDI_APPLICATION);
//     wc.hCursor = LoadCursor(NULL,IDC_CROSS);
//     wc.hbrBackground = NULL;
//     wc.lpszMenuName = className;
//     wc.lpszClassName = className;
//     ::RegisterClass(&wc);
//     done = true;
//   }  
  
   WinSize_x = 400;
   WinSize_y = 400;
   if (WinSize_x < fVP.GetWindowSizeHintX ())
     WinSize_x = fVP.GetWindowSizeHintX ();
   if (WinSize_y < fVP.GetWindowSizeHintY ())
     WinSize_y = fVP.GetWindowSizeHintY ();

//   fWindow = ::CreateWindow(className,fName.c_str(), 
//                         WS_OVERLAPPEDWINDOW,
//                         //WS_CHILD | WS_VISIBLE,
//                         0,0,
//                         WinSize_x,WinSize_y,
//                         NULL, NULL, 
//                         ::GetModuleHandle(NULL),
//                         NULL);
//   if(!fWindow) return;

//   ::SetWindowLong(fWindow,GWL_USERDATA,LONG(this));

//   // initialize OpenGL rendering :
//   fHDC = ::GetDC(fWindow);
//   if( fHDC && (SetWindowPixelFormat(fHDC)==TRUE) ) {
//     fHGLRC = ::wglCreateContext(fHDC);
//   }
  
//   if(fHDC && fHGLRC) {
//     ::wglMakeCurrent(fHDC,fHGLRC);
//   }

//   ::SetForegroundWindow(fWindow);
//   ::ShowWindow(fWindow,SW_SHOWDEFAULT);
//   ::UpdateWindow(fWindow);
//   ::DrawMenuBar(fWindow);
}

//////////////////////////////////////////////////////////////////////////////
void G4OpenGLQtViewer::CreateMainWindow (
QGLWidget* glWidget
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{

  if(fWindow) return; //Done.
  printf("G4OpenGLQtViewer::CreateMainWindow glWidget\n");

  // launch Qt if not
  G4Qt* interactorManager = G4Qt::getInstance ();
  //  G4UImanager* UI = G4UImanager::GetUIpointer();
  printf("G4OpenGLQtViewer::CreateMainWindow 3\n");

  fWindow = glWidget ;
  fWindow->makeCurrent();

  // create window
  QDialog* GLWindow ;
  if (qApp) {
    GLWindow = new QDialog();//qApp->mainWidget());
  } else {
    GLWindow = new QDialog();
  }

  QHBoxLayout *mainLayout = new QHBoxLayout;
  mainLayout->addWidget(fWindow);
  GLWindow->setLayout(mainLayout);
  GLWindow->setWindowTitle("QGl Viewer");
  GLWindow->resize(300, 300);
  GLWindow->show();


//   // Bill Gates stuff...
//   static const char className[] = "G4OpenGLQt";
//   static bool done = false;
//   if(done==false) {
//     WNDCLASS wc;
//     wc.style = CS_HREDRAW | CS_VREDRAW;
//     wc.lpfnWndProc = (WNDPROC)WindowProc;
//     wc.cbClsExtra = 0;
//     wc.cbWndExtra = 0;
//     wc.hInstance = ::GetModuleHandle(NULL);
//     wc.hIcon = LoadIcon  (NULL, IDI_APPLICATION);
//     wc.hCursor = LoadCursor(NULL,IDC_CROSS);
//     wc.hbrBackground = NULL;
//     wc.lpszMenuName = className;
//     wc.lpszClassName = className;
//     ::RegisterClass(&wc);
//     done = true;
//   }  
  
   WinSize_x = 400;
   WinSize_y = 400;
   if (WinSize_x < fVP.GetWindowSizeHintX ())
     WinSize_x = fVP.GetWindowSizeHintX ();
   if (WinSize_y < fVP.GetWindowSizeHintY ())
     WinSize_y = fVP.GetWindowSizeHintY ();

//   fWindow = ::CreateWindow(className,fName.c_str(), 
//                         WS_OVERLAPPEDWINDOW,
//                         //WS_CHILD | WS_VISIBLE,
//                         0,0,
//                         WinSize_x,WinSize_y,
//                         NULL, NULL, 
//                         ::GetModuleHandle(NULL),
//                         NULL);
//   if(!fWindow) return;

//   ::SetWindowLong(fWindow,GWL_USERDATA,LONG(this));

//   // initialize OpenGL rendering :
//   fHDC = ::GetDC(fWindow);
//   if( fHDC && (SetWindowPixelFormat(fHDC)==TRUE) ) {
//     fHGLRC = ::wglCreateContext(fHDC);
//   }
  
//   if(fHDC && fHGLRC) {
//     ::wglMakeCurrent(fHDC,fHGLRC);
//   }

//   ::SetForegroundWindow(fWindow);
//   ::ShowWindow(fWindow,SW_SHOWDEFAULT);
//   ::UpdateWindow(fWindow);
//   ::DrawMenuBar(fWindow);
}

//////////////////////////////////////////////////////////////////////////////
G4OpenGLQtViewer::G4OpenGLQtViewer (
 G4OpenGLSceneHandler& scene
)
:G4VViewer (scene, -1)
,G4OpenGLViewer (scene)
,fWindow(0)
                                   //,fHDC(0)
                                   //,fHGLRC(0)
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::G4OpenGLQtViewer \n");
}

//////////////////////////////////////////////////////////////////////////////
G4OpenGLQtViewer::~G4OpenGLQtViewer (
) 
//////////////////////////////////////////////////////////////////////////////
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
{
  printf("G4OpenGLQtViewer::~G4OpenGLQtViewer \n");
//   // This is the end (Jim Morisson).
//   if (fViewId >= 0) {
//     if(wglGetCurrentContext()!=NULL) wglMakeCurrent(NULL,NULL);
//     if(fHGLRC)       {
//       wglDeleteContext(fHGLRC);
//       fHGLRC = NULL;
//     }
    
//     if(fWindow) {
//       ::SetWindowLong(fWindow,GWL_USERDATA,LONG(NULL));
//       if(fHDC) ::ReleaseDC(fWindow,fHDC);
//       ::DestroyWindow(fWindow);
//     }
//   }
}

// //////////////////////////////////////////////////////////////////////////////
// LRESULT CALLBACK G4OpenGLQtViewer::WindowProc ( 
//  HWND   aWindow
// ,UINT   aMessage
// ,WPARAM aWParam
// ,LPARAM aLParam
// )
// //////////////////////////////////////////////////////////////////////////////
// //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
// {
/*
  switch (aMessage) { 
  case WM_PAINT:{
    printf("debug : PAINT\n");
    HDC hDC;
    PAINTSTRUCT ps;
    hDC = BeginPaint(aWindow,&ps);
    if(This) {
      // FIXME : To have an automatic refresh someone have to redraw here.
    }
    EndPaint(aWindow, &ps);

    //FIXME : have to handle WM_RESIZE
    //pView->WinSize_x = (G4int) width;
    //pView->WinSize_y = (G4int) height;
    G4OpenGLQtViewer* This = 
      (G4OpenGLQtViewer*)::GetWindowLong(aWindow,GWL_USERDATA);
    if(This) {
      This->SetView();
      glViewport(0,0,This->WinSize_x,This->WinSize_y);
      This->ClearView();
      This->DrawView();
      // WARNING : the below empty the Windows message queue...
      This->FinishView();
    }
  } return 0;
  default:
    return DefWindowProc(aWindow,aMessage,aWParam,aLParam);
  }
*/
//   return DefWindowProc(aWindow,aMessage,aWParam,aLParam);
// }

// //////////////////////////////////////////////////////////////////////////////
// bool G4OpenGLQtViewer::SetWindowPixelFormat(
//  HDC aHdc
// )
// //////////////////////////////////////////////////////////////////////////////
// //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
// {
//   // The ungessable...

//   PIXELFORMATDESCRIPTOR pfd;
//   pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
//   pfd.nVersion = 1;
//   pfd.dwFlags = 
//     PFD_DRAW_TO_WINDOW | 
//     PFD_SUPPORT_OPENGL | 
//     PFD_DOUBLEBUFFER | 
//     PFD_STEREO_DONTCARE;  
//   pfd.iPixelType = PFD_TYPE_RGBA;
//   pfd.cColorBits = 32;
//   pfd.cRedBits = 8;
//   pfd.cRedShift = 16;
//   pfd.cGreenBits = 8;
//   pfd.cGreenShift = 8;
//   pfd.cBlueBits      = 8;
//   pfd.cBlueShift = 0;
//   pfd.cAlphaBits = 0;
//   pfd.cAlphaShift = 0;
//   pfd.cAccumBits = 64;       
//   pfd.cAccumRedBits = 16;
//   pfd.cAccumGreenBits = 16;
//   pfd.cAccumBlueBits = 16;
//   pfd.cAccumAlphaBits = 0;
//   pfd.cDepthBits = 32;
//   pfd.cStencilBits = 8;
//   pfd.cAuxBuffers = 0;
//   pfd.iLayerType = PFD_MAIN_PLANE;
//   pfd.bReserved      = 0;
//   pfd.dwLayerMask = 0;
//   pfd.dwVisibleMask = 0;
//   pfd.dwDamageMask = 0;
  
//   int pixelIndex = ::ChoosePixelFormat(aHdc,&pfd);
//   if (pixelIndex==0) {
//     pixelIndex = 1;  
//     if (::DescribePixelFormat(aHdc, 
//                            pixelIndex, 
//                            sizeof(PIXELFORMATDESCRIPTOR), 
//                            &pfd)==0) {
//       return false;
//     }
//   }
//   if (::SetPixelFormat(aHdc,pixelIndex,&pfd)==FALSE) return false;
//  return true;
//}


#endif