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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 | #include "timemarker.h" | |
22 | ||
23 | #include "view.h" | |
24 | ||
25 | #include <QPainter> | |
26 | ||
27 | using namespace std; | |
28 | ||
29 | namespace pv { | |
30 | namespace view { | |
31 | ||
32 | TimeMarker::TimeMarker(View &view, const QColor &colour, double time) : | |
33 | _view(view), | |
34 | _colour(colour), | |
35 | _time(time), | |
36 | _value_action(NULL), | |
37 | _value_widget(NULL), | |
38 | _updating_value_widget(false) | |
39 | { | |
40 | } | |
41 | ||
42 | double TimeMarker::time() const | |
43 | { | |
44 | return _time; | |
45 | } | |
46 | ||
47 | void TimeMarker::set_time(double time) | |
48 | { | |
49 | _time = time; | |
50 | ||
51 | if (_value_widget) { | |
52 | _updating_value_widget = true; | |
53 | _value_widget->setValue(time); | |
54 | _updating_value_widget = false; | |
55 | } | |
56 | ||
57 | time_changed(); | |
58 | } | |
59 | ||
60 | void TimeMarker::paint(QPainter &p, const QRect &rect) | |
61 | { | |
62 | const float x = (_time - _view.offset()) / _view.scale(); | |
63 | p.setPen(_colour); | |
64 | p.drawLine(QPointF(x, rect.top()), QPointF(x, rect.bottom())); | |
65 | } | |
66 | ||
67 | void TimeMarker::on_value_changed(double value) | |
68 | { | |
69 | if (!_updating_value_widget) { | |
70 | _time = value; | |
71 | time_changed(); | |
72 | } | |
73 | } | |
74 | ||
75 | } // namespace view | |
76 | } // namespace pv |