renderwindow.cpp

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#include "renderwindow.h"

RenderWindow::RenderWindow(QGLFormat glf, QWidget * parent, const char * name )
  : QGLWidget(glf, parent, name) {
   this->InitRenderWindow();
}


RenderWindow::RenderWindow( QWidget * parent, const char * name)
  : QGLWidget(parent, name) {
   this->InitRenderWindow();
}

void RenderWindow::InitRenderWindow() {
   this->initNeeded = true;
   this->renderWindow = vtkRenderWindow::New();
   this->renderer = vtkRenderer::New();
   this->renderWindow->AddRenderer( this->renderer );
   this->light = vtkLight::New();
   this->renderer->AddLight( this->light );
   // just enable one double buffering
   // by default, we use the one of vtk
   #ifdef QT_DOUBLEBUFFER
      // use the double buffering of QT
      this->renderWindow->SetSwapBuffers(0);
   #else
      // use the double buffering of vtk
      this->setAutoBufferSwap( false );
   #endif
}

RenderWindow::~RenderWindow() {
   this->renderer->Delete();
   this->renderWindow->Delete();
}

vtkRenderer *RenderWindow::GetRenderer() {
   return this->renderer;
}

vtkRenderWindow *RenderWindow::GetRenderWindow( ) {
   return this->renderWindow;
}

void RenderWindow::initializeGL( ) {
  glClearColor(1.0, 1.0, 1.0, 1.0);
  glColor3f(1.0, 0.0, 0.0);
}

void RenderWindow::resizeGL( int w, int h) {
  glMatrixMode( GL_PROJECTION );
  glLoadIdentity();
  gluOrtho2D( 0.0, w, 0.0, h );
  glMatrixMode( GL_MODELVIEW );

  updateGL();
}

void RenderWindow::paintGL( )
{
   // Get the native window ID and pass it
   // to the VTK render window
   // before we render for the first time...
   if (this->initNeeded) {
      WId nId = winId();
      this->renderWindow->SetWindowId( (void*) nId );
      this->initNeeded = false;
   }
   else {
      this->renderWindow->Render();
   }
}

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