2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_PV_VIEW_VIEWPORT_H
22 #define PULSEVIEW_PV_VIEW_VIEWPORT_H
26 #include <QTouchEvent>
37 class Viewport : public QWidget
42 explicit Viewport(View &parent);
44 int get_total_height() const;
47 void paintEvent(QPaintEvent *event);
50 bool event(QEvent *event);
51 void mousePressEvent(QMouseEvent *event);
52 void mouseReleaseEvent(QMouseEvent *event);
53 void mouseMoveEvent(QMouseEvent *event);
54 void mouseDoubleClickEvent(QMouseEvent * event);
55 void wheelEvent(QWheelEvent *event);
56 bool touchEvent(QTouchEvent *e);
59 void on_signals_changed();
60 void on_signals_moved();
65 QPoint _mouse_down_point;
66 double _mouse_down_offset;
67 bool _mouse_down_valid;
69 double _pinch_offset0;
70 double _pinch_offset1;
71 bool _pinch_zoom_active;
77 #endif // PULSEVIEW_PV_VIEW_VIEWPORT_H