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         "IN",
  48         "OUT",
  49         "RST",
  50         "TX",
  51         "RX",
  52         "EN",
  53         "SCLK",
  54         "MOSI",
  55         "MISO",
  56         "/SS",
  57         "SDA",
  58         "SCL"
  59 };
  60
  61 Signal::Signal(pv::Session &session,
  62         shared_ptr<data::SignalBase> channel) :
  63         Trace(channel),
  64         session_(session),
  65         name_widget_(nullptr)
  66 {
  67         assert(base_);
  68
  69         connect(base_.get(), SIGNAL(enabled_changed(bool)),
  70                 this, SLOT(on_enabled_changed(bool)));
  71 }
  72
  73 void Signal::set_name(QString name)
  74 {
  75         base_->set_name(name);
  76
  77         if (name != name_widget_->currentText())
  78                 name_widget_->setEditText(name);
  79 }
  80
  81 bool Signal::enabled() const
  82 {
  83         return base_->enabled();
  84 }
  85
  86 shared_ptr<data::SignalBase> Signal::base() const
  87 {
  88         return base_;
  89 }
  90
  91 void Signal::save_settings(QSettings &settings) const
  92 {
  93         (void)settings;
  94 }
  95
  96 void Signal::restore_settings(QSettings &settings)
  97 {
  98         (void)settings;
  99 }
 100
 101 void Signal::paint_back(QPainter &p, ViewItemPaintParams &pp)
 102 {
 103         if (base_->enabled())
 104                 Trace::paint_back(p, pp);
 105 }
 106
 107 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 108 {
 109         name_widget_ = new QComboBox(parent);
 110         name_widget_->setEditable(true);
 111         name_widget_->setCompleter(nullptr);
 112
 113         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 114                 name_widget_->insertItem(i, ChannelNames[i]);
 115
 116         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
 117
 118         if (index == -1) {
 119                 name_widget_->insertItem(0, base_->name());
 120                 name_widget_->setCurrentIndex(0);
 121         } else {
 122                 name_widget_->setCurrentIndex(index);
 123         }
 124
 125         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 126                 this, SLOT(on_nameedit_changed(const QString&)));
 127
 128         form->addRow(tr("Name"), name_widget_);
 129
 130         add_color_option(parent, form);
 131 }
 132
 133 QMenu* Signal::create_header_context_menu(QWidget *parent)
 134 {
 135         QMenu *const menu = Trace::create_header_context_menu(parent);
 136
 137         menu->addSeparator();
 138
 139         QAction *const disable = new QAction(tr("Disable"), this);
 140         disable->setShortcuts(QKeySequence::Delete);
 141         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
 142         menu->addAction(disable);
 143
 144         return menu;
 145 }
 146
 147 void Signal::delete_pressed()
 148 {
 149         on_disable();
 150 }
 151
 152 void Signal::on_name_changed(const QString &text)
 153 {
 154         // On startup, this event is fired when a session restores signal
 155         // names. However, the name widget hasn't yet been created.
 156         if (!name_widget_)
 157                 return;
 158
 159         if (text != name_widget_->currentText())
 160                 name_widget_->setEditText(text);
 161
 162         Trace::on_name_changed(text);
 163 }
 164
 165 void Signal::on_disable()
 166 {
 167         base_->set_enabled(false);
 168 }
 169
 170 void Signal::on_enabled_changed(bool enabled)
 171 {
 172         (void)enabled;
 173
 174         if (owner_)
 175                 owner_->extents_changed(true, true);
 176 }
 177
 178 } // namespace trace
 179 } // namespace views
 180 } // namespace pv