Session: Use a monotonic clock to measure acquisition time.
[pulseview.git] / trace / signal.cpp
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, see <http://www.gnu.org/licenses/>.
18  */
19
20 #include <extdef.h>
21
22 #include <cassert>
23 #include <cmath>
24
25 #include <QApplication>
26 #include <QFormLayout>
27 #include <QKeyEvent>
28 #include <QLineEdit>
29 #include <QMenu>
30
31 #include <libsigrokcxx/libsigrokcxx.hpp>
32
33 #include "pv/data/signalbase.hpp"
34
35 #include "signal.hpp"
36 #include "view.hpp"
37
38 using std::shared_ptr;
39 using std::make_shared;
40
41 namespace pv {
42 namespace views {
43 namespace trace {
44
45 const char *const ChannelNames[] = {
46         "CLK",
47         "DATA",
48         "IN",
49         "OUT",
50         "RST",
51         "TX",
52         "RX",
53         "EN",
54         "SCLK",
55         "MOSI",
56         "MISO",
57         "/SS",
58         "SDA",
59         "SCL"
60 };
61
62 Signal::Signal(pv::Session &session,
63         shared_ptr<data::SignalBase> channel) :
64         Trace(channel),
65         session_(session),
66         name_widget_(nullptr)
67 {
68         assert(base_);
69
70         connect(base_.get(), SIGNAL(enabled_changed(bool)),
71                 this, SLOT(on_enabled_changed(bool)));
72 }
73
74 void Signal::set_name(QString name)
75 {
76         Trace::set_name(name);
77
78         if (name != name_widget_->currentText())
79                 name_widget_->setEditText(name);
80 }
81
82 bool Signal::enabled() const
83 {
84         return base_->enabled();
85 }
86
87 shared_ptr<data::SignalBase> Signal::base() const
88 {
89         return base_;
90 }
91
92 void Signal::save_settings(QSettings &settings) const
93 {
94         (void)settings;
95 }
96
97 void Signal::restore_settings(QSettings &settings)
98 {
99         (void)settings;
100 }
101
102 void Signal::paint_back(QPainter &p, ViewItemPaintParams &pp)
103 {
104         if (base_->enabled())
105                 Trace::paint_back(p, pp);
106 }
107
108 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
109 {
110         name_widget_ = new QComboBox(parent);
111         name_widget_->setEditable(true);
112         name_widget_->setCompleter(nullptr);
113
114         for (unsigned int i = 0; i < countof(ChannelNames); i++)
115                 name_widget_->insertItem(i, ChannelNames[i]);
116
117         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
118
119         if (index == -1) {
120                 name_widget_->insertItem(0, base_->name());
121                 name_widget_->setCurrentIndex(0);
122         } else {
123                 name_widget_->setCurrentIndex(index);
124         }
125
126         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
127                 this, SLOT(on_nameedit_changed(const QString&)));
128
129         form->addRow(tr("Name"), name_widget_);
130
131         add_colour_option(parent, form);
132 }
133
134 QMenu* Signal::create_context_menu(QWidget *parent)
135 {
136         QMenu *const menu = Trace::create_context_menu(parent);
137
138         menu->addSeparator();
139
140         QAction *const disable = new QAction(tr("Disable"), this);
141         disable->setShortcuts(QKeySequence::Delete);
142         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
143         menu->addAction(disable);
144
145         return menu;
146 }
147
148 void Signal::delete_pressed()
149 {
150         on_disable();
151 }
152
153 void Signal::on_name_changed(const QString &text)
154 {
155         // On startup, this event is fired when a session restores signal
156         // names. However, the name widget hasn't yet been created.
157         if (!name_widget_)
158                 return;
159
160         if (text != name_widget_->currentText())
161                 name_widget_->setEditText(text);
162
163         Trace::on_name_changed(text);
164 }
165
166 void Signal::on_disable()
167 {
168         base_->set_enabled(false);
169 }
170
171 void Signal::on_enabled_changed(bool enabled)
172 {
173         (void)enabled;
174
175         if (owner_)
176                 owner_->extents_changed(true, true);
177 }
178
179 } // namespace trace
180 } // namespace views
181 } // namespace pv