--- /dev/null
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP
+#define PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP
+
+#include <memory>
+
+#include <QComboBox>
+#include <QWidgetAction>
+
+#include <cstdint>
+
+#include "signalscalehandle.hpp"
+#include "trace.hpp"
+#include "viewitemowner.hpp"
+
+using std::shared_ptr;
+
+namespace pv {
+
+class Session;
+
+namespace data {
+class SignalBase;
+class SignalData;
+}
+
+namespace views {
+namespace trace {
+
+class Signal : public Trace, public ViewItemOwner
+{
+ Q_OBJECT
+
+protected:
+ Signal(pv::Session &session, shared_ptr<data::SignalBase> channel);
+
+public:
+ /**
+ * Sets the name of the signal.
+ */
+ virtual void set_name(QString name);
+
+ virtual shared_ptr<pv::data::SignalData> data() const = 0;
+
+ /**
+ * Returns true if the trace is visible and enabled.
+ */
+ bool enabled() const;
+
+ shared_ptr<data::SignalBase> base() const;
+
+ virtual void save_settings(QSettings &settings) const;
+
+ virtual void restore_settings(QSettings &settings);
+
+ /**
+ * Returns a list of row items owned by this object.
+ */
+ const item_list& child_items() const;
+
+ void paint_back(QPainter &p, ViewItemPaintParams &pp);
+
+ virtual void populate_popup_form(QWidget *parent, QFormLayout *form);
+
+ QMenu* create_context_menu(QWidget *parent);
+
+ void delete_pressed();
+
+ /**
+ * Returns the offset to show the drag handle.
+ */
+ virtual int scale_handle_offset() const = 0;
+
+ /**
+ * Handles the scale handle being dragged to an offset.
+ * @param offset the offset the scale handle was dragged to.
+ */
+ virtual void scale_handle_dragged(int offset) = 0;
+
+ /**
+ * Handles the scale handle being being released.
+ */
+ virtual void scale_handle_released() {};
+
+protected Q_SLOTS:
+ virtual void on_name_changed(const QString &text);
+
+ void on_disable();
+
+ void on_enabled_changed(bool enabled);
+
+protected:
+ pv::Session &session_;
+
+ const shared_ptr<SignalScaleHandle> scale_handle_;
+ const item_list items_;
+
+ QComboBox *name_widget_;
+};
+
+} // namespace trace
+} // namespace views
+} // namespace pv
+
+#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP