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
39 class AnalogSignal : public Signal
44 static const QColor SignalColours[4];
45 static const QColor GridMajorColor, GridMinorColor;
47 static const float EnvelopeThreshold;
49 static const int MaximumVDivs;
50 static const int MaxScaleIndex, MinScaleIndex;
51 static const int InfoTextMarginRight, InfoTextMarginBottom;
54 AnalogSignal(pv::Session &session,
55 std::shared_ptr<sigrok::Channel> channel,
56 std::shared_ptr<pv::data::Analog> data);
58 virtual ~AnalogSignal() = default;
60 std::shared_ptr<pv::data::SignalData> data() const;
62 std::shared_ptr<pv::data::Analog> analog_data() const;
65 * Computes the vertical extents of the contents of this row item.
66 * @return A pair containing the minimum and maximum y-values.
68 std::pair<int, int> v_extents() const;
71 * Returns the offset to show the drag handle.
73 int scale_handle_offset() const;
76 * Handles the scale handle being dragged to an offset.
77 * @param offset the offset the scale handle was dragged to.
79 void scale_handle_dragged(int offset);
82 * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
84 void scale_handle_drag_release();
87 * Paints the background layer of the signal with a QPainter
88 * @param p the QPainter to paint into.
89 * @param pp the painting parameters object to paint with..
91 void paint_back(QPainter &p, const ViewItemPaintParams &pp);
94 * Paints the mid-layer of the signal with a QPainter
95 * @param p the QPainter to paint into.
96 * @param pp the painting parameters object to paint with..
98 void paint_mid(QPainter &p, const ViewItemPaintParams &pp);
101 * Paints the foreground layer of the item with a QPainter
102 * @param p the QPainter to paint into.
103 * @param pp the painting parameters object to paint with.
105 void paint_fore(QPainter &p, const ViewItemPaintParams &pp);
108 void paint_grid(QPainter &p, int y, int left, int right);
110 void paint_trace(QPainter &p,
111 const std::shared_ptr<pv::data::AnalogSegment> &segment,
112 int y, int left, const int64_t start, const int64_t end,
113 const double pixels_offset, const double samples_per_pixel);
115 void paint_envelope(QPainter &p,
116 const std::shared_ptr<pv::data::AnalogSegment> &segment,
117 int y, int left, const int64_t start, const int64_t end,
118 const double pixels_offset, const double samples_per_pixel);
121 * Computes the scale factor from the scale index and vdiv settings.
123 float get_resolution(int scale_index);
128 void populate_popup_form(QWidget *parent, QFormLayout *form);
131 void on_vdivs_changed(int vdivs);
133 void on_resolution_changed(int index);
136 std::shared_ptr<pv::data::Analog> data_;
138 QComboBox *resolution_cb_;
142 int scale_index_drag_offset_;
145 int vdivs_; // divs per positive/negative side
146 float resolution_; // e.g. 10 for 10 V/div
152 #endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP