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 "pv/data/signalbase.hpp"
  35
  36 #include "signal.hpp"
  37 #include "view.hpp"
  38
  39 using std::shared_ptr;
  40 using std::make_shared;
  41
  42 namespace pv {
  43 namespace views {
  44 namespace TraceView {
  45
  46 const char *const ChannelNames[] = {
  47         "CLK",
  48         "DATA",
  49         "IN",
  50         "OUT",
  51         "RST",
  52         "TX",
  53         "RX",
  54         "EN",
  55         "SCLK",
  56         "MOSI",
  57         "MISO",
  58         "/SS",
  59         "SDA",
  60         "SCL"
  61 };
  62
  63 Signal::Signal(pv::Session &session,
  64         std::shared_ptr<data::SignalBase> channel) :
  65         Trace(channel),
  66         session_(session),
  67         scale_handle_(make_shared<SignalScaleHandle>(*this)),
  68         items_({scale_handle_}),
  69         name_widget_(nullptr)
  70 {
  71         assert(base_);
  72
  73         connect(base_.get(), SIGNAL(enabled_changed(bool)),
  74                 this, SLOT(on_enabled_changed(bool)));
  75 }
  76
  77 void Signal::set_name(QString name)
  78 {
  79         Trace::set_name(name);
  80
  81         if (name != name_widget_->currentText())
  82                 name_widget_->setEditText(name);
  83 }
  84
  85 bool Signal::enabled() const
  86 {
  87         return base_->enabled();
  88 }
  89
  90 shared_ptr<data::SignalBase> Signal::base() const
  91 {
  92         return base_;
  93 }
  94
  95 void Signal::save_settings(QSettings &settings) const
  96 {
  97         (void)settings;
  98 }
  99
 100 void Signal::restore_settings(QSettings &settings)
 101 {
 102         (void)settings;
 103 }
 104
 105 const ViewItemOwner::item_list& Signal::child_items() const
 106 {
 107         return items_;
 108 }
 109
 110 void Signal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 111 {
 112         if (base_->enabled())
 113                 Trace::paint_back(p, pp);
 114 }
 115
 116 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 117 {
 118         name_widget_ = new QComboBox(parent);
 119         name_widget_->setEditable(true);
 120         name_widget_->setCompleter(nullptr);
 121
 122         for (unsigned int i = 0; i < countof(ChannelNames); i++)
 123                 name_widget_->insertItem(i, ChannelNames[i]);
 124
 125         const int index = name_widget_->findText(base_->name(), Qt::MatchExactly);
 126
 127         if (index == -1) {
 128                 name_widget_->insertItem(0, base_->name());
 129                 name_widget_->setCurrentIndex(0);
 130         } else {
 131                 name_widget_->setCurrentIndex(index);
 132         }
 133
 134         connect(name_widget_, SIGNAL(editTextChanged(const QString&)),
 135                 this, SLOT(on_nameedit_changed(const QString&)));
 136
 137         form->addRow(tr("Name"), name_widget_);
 138
 139         add_colour_option(parent, form);
 140 }
 141
 142 QMenu* Signal::create_context_menu(QWidget *parent)
 143 {
 144         QMenu *const menu = Trace::create_context_menu(parent);
 145
 146         menu->addSeparator();
 147
 148         QAction *const disable = new QAction(tr("Disable"), this);
 149         disable->setShortcuts(QKeySequence::Delete);
 150         connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
 151         menu->addAction(disable);
 152
 153         return menu;
 154 }
 155
 156 void Signal::delete_pressed()
 157 {
 158         on_disable();
 159 }
 160
 161 void Signal::on_name_changed(const QString &text)
 162 {
 163         // On startup, this event is fired when a session restores signal
 164         // names. However, the name widget hasn't yet been created.
 165         if (!name_widget_)
 166                 return;
 167
 168         if (text != name_widget_->currentText())
 169                 name_widget_->setEditText(text);
 170
 171         Trace::on_name_changed(text);
 172 }
 173
 174 void Signal::on_disable()
 175 {
 176         base_->set_enabled(false);
 177 }
 178
 179 void Signal::on_enabled_changed(bool enabled)
 180 {
 181         (void)enabled;
 182
 183         if (owner_)
 184                 owner_->extents_changed(true, true);
 185 }
 186
 187 } // namespace TraceView
 188 } // namespace views
 189 } // namespace pv