QtBaseViewerDragDrop.cc

/*===========================================================================*\
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 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8521 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-10 15:57:35 +0100 (Mi, 10. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/



//=============================================================================
//
//  CLASS QtBaseViewer - IMPLEMENTATION
//
//=============================================================================


//== INCLUDES =================================================================

#include "QtBaseViewer.hh"

//== NAMESPACES ===============================================================

namespace ACG {
namespace QtWidgets {


//== IMPLEMENTATION ==========================================================

void QtBaseViewer::startDrag()
{
  QString view;
  encodeView(view);

  QDrag     * drag = new QDrag( this );
  QMimeData * mime_data = new QMimeData;

  mime_data->setText( view );
  drag->setMimeData( mime_data );
  drag->start();
}


void QtBaseViewer::glDragEnterEvent(QDragEnterEvent* _event)
{
  if ( externalDrag_ ) {
    emit dragEnterEvent(_event);
  } else {
    if ( _event->mimeData()->hasFormat("text/plain") )
      _event->acceptProposedAction();
  }
}


void QtBaseViewer::glDropEvent(QDropEvent* _event)
{
  if ( externalDrag_ ) {
    emit dropEvent( _event );
  } else {
    if ( _event->source() != this )
    {
      QString view( _event->mimeData()->text() );
      decodeView(view);
      _event->acceptProposedAction();
    }
  }
}

//=============================================================================
} // namespace QtWidgets
} // namespace ACG
//=============================================================================