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
32 using std::shared_ptr;
45 class AnalogSignal : public Signal
50 static const QColor SignalColours[4];
51 static const QColor GridMajorColor, GridMinorColor;
52 static const QColor SamplingPointColour;
54 static const int64_t TracePaintBlockSize;
55 static const float EnvelopeThreshold;
57 static const int MaximumVDivs;
58 static const int MaxScaleIndex, MinScaleIndex;
59 static const int InfoTextMarginRight, InfoTextMarginBottom;
68 AnalogSignal(pv::Session &session, shared_ptr<data::SignalBase> base);
70 virtual ~AnalogSignal() = default;
72 shared_ptr<pv::data::SignalData> data() const;
74 virtual void save_settings(QSettings &settings) const;
76 virtual void restore_settings(QSettings &settings);
79 * Computes the vertical extents of the contents of this row item.
80 * @return A pair containing the minimum and maximum y-values.
82 pair<int, int> v_extents() const;
85 * Returns the offset to show the drag handle.
87 int scale_handle_offset() const;
90 * Handles the scale handle being dragged to an offset.
91 * @param offset the offset the scale handle was dragged to.
93 void scale_handle_dragged(int offset);
96 * @copydoc pv::view::Signal::signal_scale_handle_drag_release()
98 void scale_handle_drag_release();
101 * Paints the background layer of the signal with a QPainter
102 * @param p the QPainter to paint into.
103 * @param pp the painting parameters object to paint with..
105 void paint_back(QPainter &p, ViewItemPaintParams &pp);
108 * Paints the mid-layer of the signal with a QPainter
109 * @param p the QPainter to paint into.
110 * @param pp the painting parameters object to paint with..
112 void paint_mid(QPainter &p, ViewItemPaintParams &pp);
115 * Paints the foreground layer of the item with a QPainter
116 * @param p the QPainter to paint into.
117 * @param pp the painting parameters object to paint with.
119 void paint_fore(QPainter &p, ViewItemPaintParams &pp);
122 void paint_grid(QPainter &p, int y, int left, int right);
124 void paint_trace(QPainter &p,
125 const shared_ptr<pv::data::AnalogSegment> &segment,
126 int y, int left, const int64_t start, const int64_t end,
127 const double pixels_offset, const double samples_per_pixel);
129 void paint_envelope(QPainter &p,
130 const shared_ptr<pv::data::AnalogSegment> &segment,
131 int y, int left, const int64_t start, const int64_t end,
132 const double pixels_offset, const double samples_per_pixel);
134 void paint_logic_mid(QPainter &p, ViewItemPaintParams &pp);
136 void paint_logic_caps(QPainter &p, QLineF *const lines,
137 vector< pair<int64_t, bool> > &edges,
138 bool level, double samples_per_pixel, double pixels_offset,
139 float x_offset, float y_offset);
142 * Computes the scale factor from the scale index and vdiv settings.
144 float get_resolution(int scale_index);
148 void update_conversion_widgets();
150 void perform_autoranging(bool keep_divs, bool force_update);
153 void populate_popup_form(QWidget *parent, QFormLayout *form);
156 void on_samples_added();
158 void on_pos_vdivs_changed(int vdivs);
159 void on_neg_vdivs_changed(int vdivs);
160 void on_div_height_changed(int height);
162 void on_resolution_changed(int index);
164 void on_autoranging_changed(int state);
166 void on_conversion_changed(int index);
167 void on_conv_threshold_changed(int index=-1);
168 void on_delayed_conversion_starter();
170 void on_display_type_changed(int index);
173 QComboBox *resolution_cb_, *conversion_cb_, *conv_threshold_cb_,
175 QSpinBox *pvdiv_sb_, *nvdiv_sb_, *div_height_sb_;
177 QTimer delayed_conversion_starter_;
181 int scale_index_drag_offset_;
184 int pos_vdivs_, neg_vdivs_; // divs per positive/negative side
185 float resolution_; // e.g. 10 for 10 V/div
187 DisplayType display_type_;
195 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP