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_ANALOGSIGNAL_HPP
21 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP
30 using std::shared_ptr;
43 class AnalogSignal : public Signal
48 static const QColor SignalColours[4];
49 static const QColor GridMajorColor, GridMinorColor;
50 static const QColor SamplingPointColour;
52 static const float EnvelopeThreshold;
54 static const int MaximumVDivs;
55 static const int MaxScaleIndex, MinScaleIndex;
56 static const int InfoTextMarginRight, InfoTextMarginBottom;
59 AnalogSignal(pv::Session &session, shared_ptr<data::SignalBase> base);
61 virtual ~AnalogSignal() = default;
63 shared_ptr<pv::data::SignalData> data() const;
65 virtual void save_settings(QSettings &settings) const;
67 virtual void restore_settings(QSettings &settings);
70 * Computes the vertical extents of the contents of this row item.
71 * @return A pair containing the minimum and maximum y-values.
73 pair<int, int> v_extents() const;
76 * Returns the offset to show the drag handle.
78 int scale_handle_offset() const;
81 * Handles the scale handle being dragged to an offset.
82 * @param offset the offset the scale handle was dragged to.
84 void scale_handle_dragged(int offset);
87 * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
89 void scale_handle_drag_release();
92 * Paints the background layer of the signal with a QPainter
93 * @param p the QPainter to paint into.
94 * @param pp the painting parameters object to paint with..
96 void paint_back(QPainter &p, const ViewItemPaintParams &pp);
99 * Paints the mid-layer of the signal with a QPainter
100 * @param p the QPainter to paint into.
101 * @param pp the painting parameters object to paint with..
103 void paint_mid(QPainter &p, const ViewItemPaintParams &pp);
106 * Paints the foreground layer of the item with a QPainter
107 * @param p the QPainter to paint into.
108 * @param pp the painting parameters object to paint with.
110 void paint_fore(QPainter &p, const ViewItemPaintParams &pp);
113 void paint_grid(QPainter &p, int y, int left, int right);
115 void paint_trace(QPainter &p,
116 const 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);
120 void paint_envelope(QPainter &p,
121 const shared_ptr<pv::data::AnalogSegment> &segment,
122 int y, int left, const int64_t start, const int64_t end,
123 const double pixels_offset, const double samples_per_pixel);
126 * Computes the scale factor from the scale index and vdiv settings.
128 float get_resolution(int scale_index);
132 void perform_autoranging(bool force_update = false);
135 void populate_popup_form(QWidget *parent, QFormLayout *form);
138 void on_samples_added();
140 void on_pos_vdivs_changed(int vdivs);
141 void on_neg_vdivs_changed(int vdivs);
143 void on_resolution_changed(int index);
145 void on_autoranging_changed(int state);
148 QComboBox *resolution_cb_;
152 int scale_index_drag_offset_;
155 int pos_vdivs_, neg_vdivs_; // divs per positive/negative side
156 float resolution_; // e.g. 10 for 10 V/div
161 } // namespace TraceView
165 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP