+ return _channel->enabled;
+}
+
+void Signal::enable(bool enable)
+{
+ _dev_inst->enable_channel(_channel, enable);
+ visibility_changed();
+}
+
+const sr_channel* Signal::channel() const
+{
+ return _channel;
+}
+
+void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
+{
+ int index;
+
+ _name_widget = new QComboBox(parent);
+ _name_widget->setEditable(true);
+
+ for(unsigned int i = 0; i < countof(ChannelNames); i++)
+ _name_widget->insertItem(i, ChannelNames[i]);
+
+ index = _name_widget->findText(_name, Qt::MatchExactly);
+
+ if (index == -1) {
+ _name_widget->insertItem(0, _name);
+ _name_widget->setCurrentIndex(0);
+ } else {
+ _name_widget->setCurrentIndex(index);
+ }
+
+ _name_widget->lineEdit()->selectAll();
+ _name_widget->setFocus();
+
+ connect(_name_widget, SIGNAL(editTextChanged(const QString&)),
+ this, SLOT(on_text_changed(const QString&)));
+
+ // We want to close the popup when the Enter key was pressed.
+ _name_widget->installEventFilter(this);
+
+ form->addRow(tr("Name"), _name_widget);
+
+ add_colour_option(parent, form);
+}
+
+QMenu* Signal::create_context_menu(QWidget *parent)
+{
+ QMenu *const menu = Trace::create_context_menu(parent);
+
+ menu->addSeparator();
+
+ QAction *const disable = new QAction(tr("Disable"), this);
+ disable->setShortcuts(QKeySequence::Delete);
+ connect(disable, SIGNAL(triggered()), this, SLOT(on_disable()));
+ menu->addAction(disable);
+
+ return menu;
+}
+
+bool Signal::eventFilter(QObject *obj, QEvent *evt)
+{
+ QKeyEvent *keyEvent;
+
+ (void)obj;
+
+ if (evt->type() == QEvent::KeyPress) {
+ keyEvent = static_cast<QKeyEvent*>(evt);
+ if (keyEvent->key() == Qt::Key_Enter ||
+ keyEvent->key() == Qt::Key_Return) {
+ close_popup();
+ return true;
+ }
+ }
+
+ return false;