customtree.cpp

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/*
 * SPDX-FileCopyrightText: 2006-2021 Istituto Italiano di Tecnologia (IIT)
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
#include "customtree.h"
#include <QMimeData>
#include <QDrag>
#include <qdebug.h>
#include "commons.h"
 
CustomTree::CustomTree(QWidget *parent) :
    QTreeWidget(parent)
{
    QTreeWidgetItem *it = new QTreeWidgetItem(this,QStringList() << "Modulo");
    it->setData(0,Qt::UserRole,(int)1);
    addTopLevelItem(it);
 
    QTreeWidgetItem *it1 = new QTreeWidgetItem(this,QStringList() << "Source Port");
    it1->setData(0,Qt::UserRole,(int)2);
    addTopLevelItem(it1);
 
    QTreeWidgetItem *it2 = new QTreeWidgetItem(this,QStringList() << "Destination Port");
    it2->setData(0,Qt::UserRole,(int)3);
    addTopLevelItem(it2);
    //addTopLevelItem(new QTreeWidgetItem(this,QStringList() << "Model4"));
 
    setDragEnabled(true);
    setDragDropMode(DragOnly);
}
 
 
void CustomTree::mousePressEvent(QMouseEvent *event)
{
    QTreeWidgetItem *selectedItem = currentItem();
 
    // If the selected Item exists
    if (selectedItem){
 
        auto* mimeData = new QMimeData;
        //qDebug() << "DRAG " << selectedItem->data(0,Qt::UserRole).toInt();
        mimeData->setText(QString("%1").arg(selectedItem->data(0,Qt::UserRole).toInt()));
        // Create drag
        auto* drag = new QDrag(this);
        drag->setMimeData(mimeData);
 
 
        //qDebug() << "mousePressEvent before exec";
        drag->exec(Qt::CopyAction);
        //qDebug() << "mousePressEvent after exec";
    }
 
    QTreeWidget::mousePressEvent(event);
}