2 * This file is part of the sigrok 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 PV_VIEW_VIEW_H
22 #define PV_VIEW_VIEW_H
26 #include <QAbstractScrollArea>
35 class View : public QAbstractScrollArea {
39 static const double MaxScale;
40 static const double MinScale;
42 static const int LabelMarginWidth;
43 static const int RulerHeight;
46 explicit View(SigSession &session, QWidget *parent = 0);
49 double offset() const;
52 void zoom(double steps);
54 void set_scale_offset(double scale, double offset);
59 void zoom(double steps, int offset);
62 bool viewportEvent(QEvent *e);
64 void resizeEvent(QResizeEvent *e);
67 void h_scroll_value_changed(int value);
68 void v_scroll_value_changed(int value);
77 uint64_t _data_length;
84 friend class Viewport;
90 #endif // PV_VIEW_VIEW_H