Method G4MousePressEvent

source/visualization/OpenGL/src/G4OpenGLQtViewer.cc:1206–1258

Save the current mouse press point @param p mouse click point */

   @param p mouse click point
*/
void G4OpenGLQtViewer::G4MousePressEvent(QMouseEvent *evnt)
{
  if (evnt->button() == Qt::RightButton) {
    return;
  }
  if ((evnt->button() & Qt::LeftButton) && (! (evnt->modifiers() & Qt::ControlModifier ))){
    fGLWidget->setMouseTracking(true);
    fAutoMove = false; // stop automove
    fLastPos1 = evnt->pos();
    fLastPos2 = fLastPos1;
    fLastPos3 = fLastPos2;
    fLastEventTime->start();
    if (fUiQt != NULL) {

      if (fUiQt->IsIconZoomInSelected()) {  // zoomIn
        // Move click point to center of OGL

        float deltaX = ((float)getWinWidth()/2-evnt->pos().x());
        float deltaY = ((float)getWinHeight()/2-evnt->pos().y());

        G4double coefTrans = 0;
        coefTrans = ((G4double)GetSceneNearWidth())/((G4double)getWinWidth());
        if (getWinHeight() <getWinWidth()) {
          coefTrans = ((G4double)GetSceneNearWidth())/((G4double)getWinHeight());
        }
        fVP.IncrementPan(-deltaX*coefTrans,deltaY*coefTrans,0);
        fVP.SetZoomFactor(1.5 * fVP.GetZoomFactor());

        updateQWidget();

      } else if (fUiQt->IsIconZoomOutSelected()) {  // zoomOut
        // Move click point to center of OGL
        moveScene(((float)getWinWidth()/2-evnt->pos().x()),((float)getWinHeight()/2-evnt->pos().y()),0,true);

        fVP.SetZoomFactor(0.75 * fVP.GetZoomFactor());
        updateQWidget();

      } else if (fUiQt->IsIconRotateSelected() ) {

        if (fShiftKeyPress) { // move
          fGLWidget->setCursor(QCursor(Qt::SizeAllCursor));

        } else {  // rotate
          fGLWidget->setCursor(QCursor(Qt::ClosedHandCursor));
        }
      } else if (fUiQt->IsIconMoveSelected()) {
        fGLWidget->setCursor(QCursor(Qt::SizeAllCursor));
      } else if (fUiQt->IsIconPickSelected()) {
        fGLWidget->setCursor(QCursor(Qt::PointingHandCursor));
      }
    }
  }
}

/**
 */