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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <extdef.h>
  22
  23 #include <assert.h>
  24 #include <cmath>
  25
  26 #include <QApplication>
  27 #include <QFormLayout>
  28 #include <QKeyEvent>
  29 #include <QLineEdit>
  30 #include <QMenu>
  31
  32 #include <libsigrokcxx/libsigrokcxx.hpp>
  33
  34 #include "signal.hpp"
  35 #include "view.hpp"
  36
  37 using std::shared_ptr;
  38
  39 using sigrok::Channel;
  40
  41 namespace pv {
  42 namespace view {
  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         std::shared_ptr<sigrok::Channel> channel) :
  63         Trace(QString::fromUtf8(channel->name().c_str())),
  64         session_(session),
  65         channel_(channel),
  66         items_(),
  67         name_widget_(nullptr),
  68         updating_name_widget_(false)
  69 {
  70         assert(channel_);
  71 }
  72
  73 void Signal::set_name(QString name)
  74 {
  75         Trace::set_name(name);
  76         updating_name_widget_ = true;
  77         name_widget_->setEditText(name);
  78         updating_name_widget_ = false;
  79
  80         // Store the channel name in sigrok::Channel so that it
  81         // will end up in the .sr file upon save.
  82         channel_->set_name(name.toUtf8().constData());
  83 }
  84
  85 bool Signal::enabled() const
  86 {
  87         return channel_->enabled();
  88 }
  89
  90 void Signal::enable(bool enable)
  91 {
  92         channel_->set_enabled(enable);
  93
  94         if (owner_)
  95                 owner_->extents_changed(true, true);
  96 }
  97
  98 shared_ptr<Channel> Signal::channel() const
  99 {
 100         return channel_;
 101 }
 102
 103 const ViewItemOwner::item_list& Signal::child_items() const
 104 {
 105         return items_;
 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(0);
 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(name_, Qt::MatchExactly);
 118
 119         if (index == -1) {
 120                 name_widget_->insertItem(0, 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_text_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_disable()
 154 {
 155         enable(false);
 156 }
 157
 158 } // namespace view
 159 } // namespace pv