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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | */ | |
20 | ||
21 | #ifndef PV_VIEW_VIEWPORT_H | |
22 | #define PV_VIEW_VIEWPORT_H | |
23 | ||
24 | #include <QTimer> | |
25 | #include <QWidget> | |
26 | ||
27 | class QPainter; | |
28 | class QPaintEvent; | |
29 | class SigSession; | |
30 | ||
31 | namespace pv { | |
32 | namespace view { | |
33 | ||
34 | class View; | |
35 | ||
36 | class Viewport : public QWidget | |
37 | { | |
38 | Q_OBJECT | |
39 | ||
40 | public: | |
41 | explicit Viewport(View &parent); | |
42 | ||
43 | int get_total_height() const; | |
44 | ||
45 | protected: | |
46 | void paintEvent(QPaintEvent *event); | |
47 | ||
48 | private: | |
49 | void mousePressEvent(QMouseEvent *event); | |
50 | void mouseMoveEvent(QMouseEvent *event); | |
51 | void mouseReleaseEvent(QMouseEvent *event); | |
52 | void wheelEvent(QWheelEvent *event); | |
53 | ||
54 | private: | |
55 | View &_view; | |
56 | ||
57 | QPoint _mouse_down_point; | |
58 | double _mouse_down_offset; | |
59 | }; | |
60 | ||
61 | } // namespace view | |
62 | } // namespace pv | |
63 | ||
64 | #endif // PV_VIEW_VIEWPORT_H |