QGo4BrowserTreeWidget.cpp

Go to the documentation of this file.

// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------
 
#include "QGo4BrowserTreeWidget.h"
 
#include <QDropEvent>
#include <QDrag>
 
QGo4BrowserTreeWidget::QGo4BrowserTreeWidget(QWidget *parent) :
   QTreeWidget(parent)
{
}
 
QGo4BrowserTreeWidget::~QGo4BrowserTreeWidget()
{
}
 
QStringList QGo4BrowserTreeWidget::mimeTypes() const
{
   QStringList qstrList;
   qstrList.append("text");
   return qstrList;
}
 
Qt::DropActions QGo4BrowserTreeWidget::supportedDropActions() const
{
   // returns what actions are supported when dropping
   return Qt::CopyAction | Qt::MoveAction;
}
 
bool QGo4BrowserTreeWidget::dropMimeData(QTreeWidgetItem *item, int, const QMimeData *data, Qt::DropAction)
{
   emit ItemDropProcess((void *)item, (void *)data);
 
   return true;
}
 
void QGo4BrowserTreeWidget::mouseMoveEvent(QMouseEvent *event)
{
   // if not left button - return
   if (event->buttons() & Qt::LeftButton) {
      QDrag *drag = nullptr;
      // request from browser drag
       emit RequestDragObject(&drag);
 
      if (drag)
         drag->exec(Qt::CopyAction | Qt::MoveAction);
   }
}