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 using std::make_shared;
  39
  40 using sigrok::Channel;
  41
  42 namespace pv {
  43 namespace view {
  44
  45 const char *const ChannelNames[] = {
  46         "CLK",
  47         "DATA",
  48         "IN",
  49         "OUT",
  50         "RST",
  51         "TX",
  52         "RX",
  53         "EN",
  54         "SCLK",
  55         "MOSI",
  56         "MISO",
  57         "/SS",
  58         "SDA",
  59         "SCL"
  60 };
  61
  62 Signal::Signal(pv::Session &session,
  63         std::shared_ptr<sigrok::Channel> channel) :
  64         Trace(QString::fromUtf8(channel->name().c_str())),
  65         session_(session),
  66         channel_(channel),
  67         scale_handle_(make_shared<SignalScaleHandle>(*this)),
  68         items_({scale_handle_}),
  69         name_widget_(nullptr)
  70 {
  71         assert(channel_);
  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         // Store the channel name in sigrok::Channel so that it
  82         // will end up in the .sr file upon save.
  83         channel_->set_name(name.toUtf8().constData());
  84 }
  85
  86 bool Signal::enabled() const
  87 {
  88         return channel_->enabled();
  89 }
  90
  91 void Signal::enable(bool enable)
  92 {
  93         channel_->set_enabled(enable);
  94
  95         if (owner_)
  96                 owner_->extents_changed(true, true);
  97 }
  98
  99 shared_ptr<Channel> Signal::channel() const
 100 {
 101         return channel_;
 102 }
 103
 104 const ViewItemOwner::item_list& Signal::child_items() const
 105 {
 106         return items_;
 107 }
 108
 109 void Signal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 110 {
 111         if (channel_->enabled())
 112                 Trace::paint_back(p, pp);
 113 }
 114
 115 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 116 {
 117         name_widget_ = new QComboBox(parent);
 118         name_widget_->setEditable(true);
 119         name_widget_->setCompleter(0);
 120
 121         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 122                 name_widget_->insertItem(i, ChannelNames[i]);
 123
 124         const int index = name_widget_->findText(name_, Qt::MatchExactly);
 125
 126         if (index == -1) {
 127                 name_widget_->insertItem(0, name_);
 128                 name_widget_->setCurrentIndex(0);
 129         } else {
 130                 name_widget_->setCurrentIndex(index);
 131         }
 132
 133         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 134                 this, SLOT(on_text_changed(const QString&)));
 135
 136         form->addRow(tr("Name"), name_widget_);
 137
 138         add_colour_option(parent, form);
 139 }
 140
 141 QMenu* Signal::create_context_menu(QWidget *parent)
 142 {
 143         QMenu *const menu = Trace::create_context_menu(parent);
 144
 145         menu->addSeparator();
 146
 147         QAction *const disable = new QAction(tr("Disable"), this);
 148         disable->setShortcuts(QKeySequence::Delete);
 149         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
 150         menu->addAction(disable);
 151
 152         return menu;
 153 }
 154
 155 void Signal::delete_pressed()
 156 {
 157         on_disable();
 158 }
 159
 160 void Signal::on_disable()
 161 {
 162         enable(false);
 163 }
 164
 165 } // namespace view
 166 } // namespace pv