Use emplace_back() where possible.
[pulseview.git] / pv / view / 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 TraceView {
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         std::shared_ptr<data::SignalBase> channel) :
64         Trace(channel),
65         session_(session),
66         scale_handle_(make_shared<SignalScaleHandle>(*this)),
67         items_({scale_handle_}),
68         name_widget_(nullptr)
69 {
70         assert(base_);
71
72         connect(base_.get(), SIGNAL(enabled_changed(bool)),
73                 this, SLOT(on_enabled_changed(bool)));
74 }
75
76 void Signal::set_name(QString name)
77 {
78         Trace::set_name(name);
79
80         if (name != name_widget_->currentText())
81                 name_widget_->setEditText(name);
82 }
83
84 bool Signal::enabled() const
85 {
86         return base_->enabled();
87 }
88
89 shared_ptr<data::SignalBase> Signal::base() const
90 {
91         return base_;
92 }
93
94 void Signal::save_settings(QSettings &settings) const
95 {
96         (void)settings;
97 }
98
99 void Signal::restore_settings(QSettings &settings)
100 {
101         (void)settings;
102 }
103
104 const ViewItemOwner::item_list& Signal::child_items() const
105 {
106         return items_;
107 }
108
109 void Signal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
110 {
111         if (base_->enabled())
112                 Trace::paint_back(p, pp);
113 }
114
115 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
116 {
117         name_widget_ = new QComboBox(parent);
118         name_widget_->setEditable(true);
119         name_widget_->setCompleter(nullptr);
120
121         for (unsigned int i = 0; i < countof(ChannelNames); i++)
122                 name_widget_->insertItem(i, ChannelNames[i]);
123
124         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
125
126         if (index == -1) {
127                 name_widget_->insertItem(0, base_->name());
128                 name_widget_->setCurrentIndex(0);
129         } else {
130                 name_widget_->setCurrentIndex(index);
131         }
132
133         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
134                 this, SLOT(on_nameedit_changed(const QString&)));
135
136         form->addRow(tr("Name"), name_widget_);
137
138         add_colour_option(parent, form);
139 }
140
141 QMenu* Signal::create_context_menu(QWidget *parent)
142 {
143         QMenu *const menu = Trace::create_context_menu(parent);
144
145         menu->addSeparator();
146
147         QAction *const disable = new QAction(tr("Disable"), this);
148         disable->setShortcuts(QKeySequence::Delete);
149         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
150         menu->addAction(disable);
151
152         return menu;
153 }
154
155 void Signal::delete_pressed()
156 {
157         on_disable();
158 }
159
160 void Signal::on_name_changed(const QString &text)
161 {
162         // On startup, this event is fired when a session restores signal
163         // names. However, the name widget hasn't yet been created.
164         if (!name_widget_)
165                 return;
166
167         if (text != name_widget_->currentText())
168                 name_widget_->setEditText(text);
169
170         Trace::on_name_changed(text);
171 }
172
173 void Signal::on_disable()
174 {
175         base_->set_enabled(false);
176 }
177
178 void Signal::on_enabled_changed(bool enabled)
179 {
180         (void)enabled;
181
182         if (owner_)
183                 owner_->extents_changed(true, true);
184 }
185
186 } // namespace TraceView
187 } // namespace views
188 } // namespace pv