pv/views/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
  40 namespace pv {
  41 namespace views {
  42 namespace trace {
  43
  44 const char *const ChannelNames[] = {
  45         "CLK",
  46         "DATA",
  47         "EN",
  48         "IN",
  49         "OUT",
  50         "RST",
  51         "TX",
  52         "RX",
  53         "SDA",
  54         "SCL"
  55         "SCLK",
  56         "MOSI",
  57         "MISO",
  58         "/CS",
  59         "nCS",
  60         "/SS",
  61         "nSS",
  62         "/RST",
  63         "nRST",
  64 };
  65
  66 Signal::Signal(pv::Session &session,
  67         shared_ptr<data::SignalBase> signal) :
  68         Trace(signal),
  69         session_(session),
  70         name_widget_(nullptr)
  71 {
  72         assert(base_);
  73
  74         connect(base_.get(), SIGNAL(enabled_changed(bool)),
  75                 this, SLOT(on_enabled_changed(bool)));
  76 }
  77
  78 void Signal::set_name(QString name)
  79 {
  80         base_->set_name(name);
  81
  82         if (name != name_widget_->currentText())
  83                 name_widget_->setEditText(name);
  84 }
  85
  86 bool Signal::enabled() const
  87 {
  88         return base_->enabled();
  89 }
  90
  91 shared_ptr<data::SignalBase> Signal::base() const
  92 {
  93         return base_;
  94 }
  95
  96 void Signal::save_settings(QSettings &settings) const
  97 {
  98         std::map<QString, QVariant> settings_map = save_settings();
  99
 100         for (auto& entry : settings_map)
 101                 settings.setValue(entry.first, entry.second);
 102 }
 103
 104 std::map<QString, QVariant> Signal::save_settings() const
 105 {
 106         return std::map<QString, QVariant>();
 107 }
 108
 109 void Signal::restore_settings(QSettings &settings)
 110 {
 111         std::map<QString, QVariant> settings_map;
 112
 113         QStringList keys = settings.allKeys();
 114         for (int i = 0; i < keys.size(); i++)
 115                 settings_map[keys.at(i)] = settings.value(keys.at(i));
 116
 117         restore_settings(settings_map);
 118 }
 119
 120 void Signal::restore_settings(std::map<QString, QVariant> settings)
 121 {
 122         (void)settings;
 123 }
 124
 125
 126 void Signal::paint_back(QPainter &p, ViewItemPaintParams &pp)
 127 {
 128         if (base_->enabled())
 129                 Trace::paint_back(p, pp);
 130 }
 131
 132 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 133 {
 134         name_widget_ = new QComboBox(parent);
 135         name_widget_->setEditable(true);
 136         name_widget_->setCompleter(nullptr);
 137
 138         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 139                 name_widget_->insertItem(i, ChannelNames[i]);
 140
 141         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
 142
 143         if (index == -1) {
 144                 name_widget_->insertItem(0, base_->name());
 145                 name_widget_->setCurrentIndex(0);
 146         } else {
 147                 name_widget_->setCurrentIndex(index);
 148         }
 149
 150         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 151                 this, SLOT(on_nameedit_changed(const QString&)));
 152
 153         form->addRow(tr("Name"), name_widget_);
 154
 155         add_color_option(parent, form);
 156 }
 157
 158 QMenu* Signal::create_header_context_menu(QWidget *parent)
 159 {
 160         QMenu *const menu = Trace::create_header_context_menu(parent);
 161
 162         menu->addSeparator();
 163
 164         QString caption;
 165
 166         if (base_->is_generated())
 167                 caption = tr("Remove");
 168         else
 169                 caption = tr("Disable");
 170
 171         QAction *const a = new QAction(caption, this);
 172         a->setShortcuts(QKeySequence::Delete);
 173         connect(a, SIGNAL(triggered()), this, SLOT(on_disable()));
 174         menu->addAction(a);
 175
 176         return menu;
 177 }
 178
 179 void Signal::delete_pressed()
 180 {
 181         on_disable();
 182 }
 183
 184 void Signal::on_name_changed(const QString &text)
 185 {
 186         // On startup, this event is fired when a session restores signal
 187         // names. However, the name widget hasn't yet been created.
 188         if (!name_widget_)
 189                 return;
 190
 191         if (text != name_widget_->currentText())
 192                 name_widget_->setEditText(text);
 193
 194         Trace::on_name_changed(text);
 195 }
 196
 197 void Signal::on_disable()
 198 {
 199         if (base_->is_generated())
 200                 session_.remove_generated_signal(base_);
 201         else
 202                 base_->set_enabled(false);
 203 }
 204
 205 void Signal::on_enabled_changed(bool enabled)
 206 {
 207         (void)enabled;
 208
 209         if (owner_)
 210                 owner_->extents_changed(true, true);
 211 }
 212
 213 } // namespace trace
 214 } // namespace views
 215 } // namespace pv