--- /dev/null
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
+ *
+ * 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_SUBWINDOWBASE_HPP
+#define PULSEVIEW_PV_SUBWINDOWBASE_HPP
+
+#include <cstdint>
+#include <memory>
+#include <unordered_set>
+
+#include <QToolBar>
+#include <QWidget>
+
+#include <pv/data/signalbase.hpp>
+
+#ifdef ENABLE_DECODE
+#include <pv/data/decodesignal.hpp>
+#endif
+
+using std::shared_ptr;
+using std::unordered_set;
+
+namespace pv {
+
+class Session;
+
+namespace subwindows {
+
+enum SubWindowType {
+ SubWindowTypeDecoderSelector,
+};
+
+class SubWindowBase : public QWidget
+{
+ Q_OBJECT
+
+public:
+ explicit SubWindowBase(Session &session, QWidget *parent = nullptr);
+
+ virtual bool has_toolbar() const;
+ virtual QToolBar* create_toolbar(QWidget *parent) const;
+
+ Session& session();
+ const Session& session() const;
+
+ /**
+ * Returns the signal bases contained in this view.
+ */
+ unordered_set< shared_ptr<data::SignalBase> > signalbases() const;
+
+ virtual void clear_signalbases();
+
+ virtual void add_signalbase(const shared_ptr<data::SignalBase> signalbase);
+
+#ifdef ENABLE_DECODE
+ virtual void clear_decode_signals();
+
+ virtual void add_decode_signal(shared_ptr<data::DecodeSignal> signal);
+
+ virtual void remove_decode_signal(shared_ptr<data::DecodeSignal> signal);
+#endif
+
+public Q_SLOTS:
+ virtual void on_signals_changed();
+
+protected:
+ Session &session_;
+
+ unordered_set< shared_ptr<data::SignalBase> > signalbases_;
+};
+
+} // namespace subwindows
+} // namespace pv
+
+#endif // PULSEVIEW_PV_SUBWINDOWBASE_HPP