+
+ double samplerate = _decoder->get_samplerate();
+
+ // Show sample rate as 1Hz when it is unknown
+ if (samplerate == 0.0)
+ samplerate = 1.0;
+
+ const double pixels_offset = (_view->offset() -
+ _decoder->get_start_time()) / scale;
+ const double samples_per_pixel = samplerate * scale;
+
+ assert(_decoder);
+ vector< shared_ptr<Annotation> > annotations(_decoder->annotations());
+ BOOST_FOREACH(shared_ptr<Annotation> a, annotations) {
+ assert(a);
+ a->paint(p, get_text_colour(), _text_size.height(),
+ left, right, samples_per_pixel, pixels_offset, y);
+ }
+}
+
+QMenu* DecodeSignal::create_context_menu(QWidget *parent)
+{
+ QMenu *const menu = Trace::create_context_menu(parent);
+
+ menu->addSeparator();
+
+ QAction *const del = new QAction(tr("Delete"), this);
+ del->setShortcuts(QKeySequence::Delete);
+ connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
+ menu->addAction(del);
+
+ return menu;
+}
+
+void DecodeSignal::on_new_decode_data()
+{
+ if (_view)
+ _view->update_viewport();
+}
+
+void DecodeSignal::delete_pressed()
+{
+ on_delete();