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         name_widget_(nullptr),
  67         updating_name_widget_(false)
  68 {
  69         assert(channel_);
  70 }
  71
  72 void Signal::set_name(QString name)
  73 {
  74         Trace::set_name(name);
  75         updating_name_widget_ = true;
  76         name_widget_->setEditText(name);
  77         updating_name_widget_ = false;
  78
  79         // Store the channel name in sigrok::Channel so that it
  80         // will end up in the .sr file upon save.
  81         channel_->set_name(name.toUtf8().constData());
  82 }
  83
  84 bool Signal::enabled() const
  85 {
  86         return channel_->enabled();
  87 }
  88
  89 void Signal::enable(bool enable)
  90 {
  91         channel_->set_enabled(enable);
  92
  93         if (owner_)
  94                 owner_->extents_changed(true, true);
  95 }
  96
  97 shared_ptr<Channel> Signal::channel() const
  98 {
  99         return channel_;
 100 }
 101
 102 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 103 {
 104         name_widget_ = new QComboBox(parent);
 105         name_widget_->setEditable(true);
 106         name_widget_->setCompleter(0);
 107
 108         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 109                 name_widget_->insertItem(i, ChannelNames[i]);
 110
 111         const int index = name_widget_->findText(name_, Qt::MatchExactly);
 112
 113         if (index == -1) {
 114                 name_widget_->insertItem(0, name_);
 115                 name_widget_->setCurrentIndex(0);
 116         } else {
 117                 name_widget_->setCurrentIndex(index);
 118         }
 119
 120         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 121                 this, SLOT(on_text_changed(const QString&)));
 122
 123         form->addRow(tr("Name"), name_widget_);
 124
 125         add_colour_option(parent, form);
 126 }
 127
 128 QMenu* Signal::create_context_menu(QWidget *parent)
 129 {
 130         QMenu *const menu = Trace::create_context_menu(parent);
 131
 132         menu->addSeparator();
 133
 134         QAction *const disable = new QAction(tr("Disable"), this);
 135         disable->setShortcuts(QKeySequence::Delete);
 136         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
 137         menu->addAction(disable);
 138
 139         return menu;
 140 }
 141
 142 void Signal::delete_pressed()
 143 {
 144         on_disable();
 145 }
 146
 147 void Signal::on_disable()
 148 {
 149         enable(false);
 150 }
 151
 152 } // namespace view
 153 } // namespace pv