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, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP
22 #define PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP
37 class AnalogSignal : public Signal
40 static const int NominalHeight;
41 static const QColor SignalColours[4];
43 static const float EnvelopeThreshold;
46 AnalogSignal(pv::Session &session,
47 std::shared_ptr<sigrok::Channel> channel,
48 std::shared_ptr<pv::data::Analog> data);
50 virtual ~AnalogSignal() = default;
52 std::shared_ptr<pv::data::SignalData> data() const;
54 std::shared_ptr<pv::data::Analog> analog_data() const;
57 * Computes the vertical extents of the contents of this row item.
58 * @return A pair containing the minimum and maximum y-values.
60 std::pair<int, int> v_extents() const;
63 * Returns the offset to show the drag handle.
65 int scale_handle_offset() const;
68 * Handles the scale handle being dragged to an offset.
69 * @param offset the offset the scale handle was dragged to.
71 void scale_handle_dragged(int offset);
74 * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
76 void scale_handle_drag_release();
79 * Paints the background layer of the signal with a QPainter
80 * @param p the QPainter to paint into.
81 * @param pp the painting parameters object to paint with..
83 void paint_back(QPainter &p, const ViewItemPaintParams &pp);
86 * Paints the mid-layer of the signal with a QPainter
87 * @param p the QPainter to paint into.
88 * @param pp the painting parameters object to paint with..
90 void paint_mid(QPainter &p, const ViewItemPaintParams &pp);
93 void paint_trace(QPainter &p,
94 const std::shared_ptr<pv::data::AnalogSegment> &segment,
95 int y, int left, const int64_t start, const int64_t end,
96 const double pixels_offset, const double samples_per_pixel);
98 void paint_envelope(QPainter &p,
99 const std::shared_ptr<pv::data::AnalogSegment> &segment,
100 int y, int left, const int64_t start, const int64_t end,
101 const double pixels_offset, const double samples_per_pixel);
104 * Computes the scale factor from the scale index.
109 std::shared_ptr<pv::data::Analog> data_;
112 int scale_index_drag_offset_;
118 #endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP