File indexing completed on 2024-05-12 05:44:25 

0001 /***************************************************************************
0002  *   Copyright (C) 2006-2009 by Rajko Albrecht                             *
0003  *   ral@alwins-world.de                                                   *
0004  *                                                                         *
0005  *   This program is free software; you can redistribute it and/or modify  *
0006  *   it under the terms of the GNU General Public License as published by  *
0007  *   the Free Software Foundation; either version 2 of the License, or     *
0008  *   (at your option) any later version.                                   *
0009  *                                                                         *
0010  *   This program is distributed in the hope that it will be useful,       *
0011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
0012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
0013  *   GNU General Public License for more details.                          *
0014  *                                                                         *
0015  *   You should have received a copy of the GNU General Public License     *
0016  *   along with this program; if not, write to the                         *
0017  *   Free Software Foundation, Inc.,                                       *
0018  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
0019  ***************************************************************************/
0020 #ifndef PANNERVIEW_H
0021 #define PANNERVIEW_H
0022 
0023 #include <QGraphicsView>
0024 #include <QMouseEvent>
0025 #include <QPointF>
0026 
0027 class GraphPanMark;
0028 /**
0029     @author Rajko Albrecht <ral@alwins-world.de>
0030 */
0031 class PannerView : public QGraphicsView
0032 {
0033     Q_OBJECT
0034 public:
0035     explicit PannerView(QWidget *parent = nullptr);
0036     ~PannerView() override;
0037 
0038     void setZoomRect(const QRectF &theValue);
0039     void updateCurrentRect();
0040     virtual void setScene(QGraphicsScene *sc);
0041 
0042 signals:
0043     void zoomRectMoved(qreal dx, qreal dy);
0044     void zoomRectMoveFinished();
0045 
0046 protected:
0047     void mousePressEvent(QMouseEvent *) override;
0048     void mouseMoveEvent(QMouseEvent *) override;
0049     void mouseReleaseEvent(QMouseEvent *) override;
0050 
0051 protected:
0052     QRectF m_ZoomRect;
0053     bool m_Moving;
0054     QPoint m_LastPos;
0055 
0056     GraphPanMark *m_Mark;
0057 };
0058 
0059 #endif