2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP
21 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP
26 #include <QWidgetAction>
30 #include <pv/data/logicsegment.hpp>
33 #include "viewitemowner.hpp"
35 using std::shared_ptr;
50 * The Signal class represents a series of numeric values that can be drawn.
51 * This is the main difference to the more generic @ref Trace class.
53 * It is generally accepted that Signal instances consider themselves to be
54 * individual channels on e.g. an oscilloscope, though it should be kept in
55 * mind that virtual signals (e.g. math) will also be served by the Signal
58 class Signal : public Trace, public ViewItemOwner
63 Signal(pv::Session &session, shared_ptr<data::SignalBase> channel);
67 * Sets the name of the signal.
69 virtual void set_name(QString name);
71 virtual shared_ptr<pv::data::SignalData> data() const = 0;
74 * Determines the closest level change (i.e. edge) to a given sample, which
75 * is useful for e.g. the "snap to edge" functionality.
77 * @param sample_pos Sample to use
78 * @return The changes left and right of the given position
80 virtual vector<data::LogicSegment::EdgePair> get_nearest_level_changes(uint64_t sample_pos) = 0;
83 * Returns true if the trace is visible and enabled.
87 shared_ptr<data::SignalBase> base() const;
89 virtual void save_settings(QSettings &settings) const;
91 virtual void restore_settings(QSettings &settings);
93 void paint_back(QPainter &p, ViewItemPaintParams &pp);
95 virtual void populate_popup_form(QWidget *parent, QFormLayout *form);
97 QMenu* create_header_context_menu(QWidget *parent);
99 void delete_pressed();
102 virtual void on_name_changed(const QString &text);
106 void on_enabled_changed(bool enabled);
109 pv::Session &session_;
111 QComboBox *name_widget_;
118 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP