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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 <QFormLayout> | |
26 | #include <QPainter> | |
27 | ||
28 | #include <pv/widgets/popup.h> | |
29 | ||
30 | namespace pv { | |
31 | namespace view { | |
32 | ||
33 | TimeMarker::TimeMarker(View &view, const QColor &colour, double time) : | |
34 | _view(view), | |
35 | _colour(colour), | |
36 | _time(time), | |
37 | _value_action(NULL), | |
38 | _value_widget(NULL), | |
39 | _updating_value_widget(false) | |
40 | { | |
41 | } | |
42 | ||
43 | double TimeMarker::time() const | |
44 | { | |
45 | return _time; | |
46 | } | |
47 | ||
48 | float TimeMarker::get_x() const | |
49 | { | |
50 | return (_time - _view.offset()) / _view.scale(); | |
51 | } | |
52 | ||
53 | void TimeMarker::set_time(double time) | |
54 | { | |
55 | _time = time; | |
56 | ||
57 | if (_value_widget) { | |
58 | _updating_value_widget = true; | |
59 | _value_widget->setValue(time); | |
60 | _updating_value_widget = false; | |
61 | } | |
62 | ||
63 | time_changed(); | |
64 | } | |
65 | ||
66 | void TimeMarker::paint(QPainter &p, const QRect &rect) | |
67 | { | |
68 | const float x = get_x(); | |
69 | p.setPen(_colour); | |
70 | p.drawLine(QPointF(x, rect.top()), QPointF(x, rect.bottom())); | |
71 | } | |
72 | ||
73 | pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent) | |
74 | { | |
75 | using pv::widgets::Popup; | |
76 | ||
77 | Popup *const popup = new Popup(parent); | |
78 | QFormLayout *const form = new QFormLayout(popup); | |
79 | popup->setLayout(form); | |
80 | ||
81 | _value_widget = new QDoubleSpinBox(parent); | |
82 | _value_widget->setDecimals(9); | |
83 | _value_widget->setSuffix("s"); | |
84 | _value_widget->setSingleStep(1e-6); | |
85 | _value_widget->setValue(_time); | |
86 | ||
87 | connect(_value_widget, SIGNAL(valueChanged(double)), | |
88 | this, SLOT(on_value_changed(double))); | |
89 | ||
90 | form->addRow(tr("Time"), _value_widget); | |
91 | ||
92 | return popup; | |
93 | } | |
94 | ||
95 | void TimeMarker::on_value_changed(double value) | |
96 | { | |
97 | if (!_updating_value_widget) { | |
98 | _time = value; | |
99 | time_changed(); | |
100 | } | |
101 | } | |
102 | ||
103 | } // namespace view | |
104 | } // namespace pv |