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_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP
22 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP
41 class AnalogSignal : public Signal
46 static const QColor SignalColours[4];
47 static const QColor GridMajorColor, GridMinorColor;
49 static const float EnvelopeThreshold;
51 static const int MaximumVDivs;
52 static const int MaxScaleIndex, MinScaleIndex;
53 static const int InfoTextMarginRight, InfoTextMarginBottom;
56 AnalogSignal(pv::Session &session,
57 std::shared_ptr<data::SignalBase> base);
59 virtual ~AnalogSignal() = default;
61 std::shared_ptr<pv::data::SignalData> data() const;
63 virtual void save_settings(QSettings &settings) const;
65 virtual void restore_settings(QSettings &settings);
68 * Computes the vertical extents of the contents of this row item.
69 * @return A pair containing the minimum and maximum y-values.
71 std::pair<int, int> v_extents() const;
74 * Returns the offset to show the drag handle.
76 int scale_handle_offset() const;
79 * Handles the scale handle being dragged to an offset.
80 * @param offset the offset the scale handle was dragged to.
82 void scale_handle_dragged(int offset);
85 * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
87 void scale_handle_drag_release();
90 * Paints the background layer of the signal with a QPainter
91 * @param p the QPainter to paint into.
92 * @param pp the painting parameters object to paint with..
94 void paint_back(QPainter &p, const ViewItemPaintParams &pp);
97 * Paints the mid-layer of the signal with a QPainter
98 * @param p the QPainter to paint into.
99 * @param pp the painting parameters object to paint with..
101 void paint_mid(QPainter &p, const ViewItemPaintParams &pp);
104 * Paints the foreground layer of the item with a QPainter
105 * @param p the QPainter to paint into.
106 * @param pp the painting parameters object to paint with.
108 void paint_fore(QPainter &p, const ViewItemPaintParams &pp);
111 void paint_grid(QPainter &p, int y, int left, int right);
113 void paint_trace(QPainter &p,
114 const std::shared_ptr<pv::data::AnalogSegment> &segment,
115 int y, int left, const int64_t start, const int64_t end,
116 const double pixels_offset, const double samples_per_pixel);
118 void paint_envelope(QPainter &p,
119 const std::shared_ptr<pv::data::AnalogSegment> &segment,
120 int y, int left, const int64_t start, const int64_t end,
121 const double pixels_offset, const double samples_per_pixel);
124 * Computes the scale factor from the scale index and vdiv settings.
126 float get_resolution(int scale_index);
131 void populate_popup_form(QWidget *parent, QFormLayout *form);
134 void on_vdivs_changed(int vdivs);
136 void on_resolution_changed(int index);
139 QComboBox *resolution_cb_;
143 int scale_index_drag_offset_;
146 int vdivs_; // divs per positive/negative side
147 float resolution_; // e.g. 10 for 10 V/div
150 } // namespace TraceView
154 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP