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         current_segment_(0)
  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::set_current_segment(const int segment)
  93 {
  94         current_segment_ = segment;
  95 }
  96
  97 int Signal::get_current_segment() const
  98 {
  99         return current_segment_;
 100 }
 101
 102 void Signal::save_settings(QSettings &settings) const
 103 {
 104         (void)settings;
 105 }
 106
 107 void Signal::restore_settings(QSettings &settings)
 108 {
 109         (void)settings;
 110 }
 111
 112 void Signal::paint_back(QPainter &p, ViewItemPaintParams &pp)
 113 {
 114         if (base_->enabled())
 115                 Trace::paint_back(p, pp);
 116 }
 117
 118 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 119 {
 120         name_widget_ = new QComboBox(parent);
 121         name_widget_->setEditable(true);
 122         name_widget_->setCompleter(nullptr);
 123
 124         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 125                 name_widget_->insertItem(i, ChannelNames[i]);
 126
 127         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
 128
 129         if (index == -1) {
 130                 name_widget_->insertItem(0, base_->name());
 131                 name_widget_->setCurrentIndex(0);
 132         } else {
 133                 name_widget_->setCurrentIndex(index);
 134         }
 135
 136         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 137                 this, SLOT(on_nameedit_changed(const QString&)));
 138
 139         form->addRow(tr("Name"), name_widget_);
 140
 141         add_colour_option(parent, form);
 142 }
 143
 144 QMenu* Signal::create_context_menu(QWidget *parent)
 145 {
 146         QMenu *const menu = Trace::create_context_menu(parent);
 147
 148         menu->addSeparator();
 149
 150         QAction *const disable = new QAction(tr("Disable"), this);
 151         disable->setShortcuts(QKeySequence::Delete);
 152         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
 153         menu->addAction(disable);
 154
 155         return menu;
 156 }
 157
 158 void Signal::delete_pressed()
 159 {
 160         on_disable();
 161 }
 162
 163 void Signal::on_name_changed(const QString &text)
 164 {
 165         // On startup, this event is fired when a session restores signal
 166         // names. However, the name widget hasn't yet been created.
 167         if (!name_widget_)
 168                 return;
 169
 170         if (text != name_widget_->currentText())
 171                 name_widget_->setEditText(text);
 172
 173         Trace::on_name_changed(text);
 174 }
 175
 176 void Signal::on_disable()
 177 {
 178         base_->set_enabled(false);
 179 }
 180
 181 void Signal::on_enabled_changed(bool enabled)
 182 {
 183         (void)enabled;
 184
 185         if (owner_)
 186                 owner_->extents_changed(true, true);
 187 }
 188
 189 } // namespace trace
 190 } // namespace views
 191 } // namespace pv