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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP | |
21 | #define PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP | |
22 | ||
23 | #include <memory> | |
24 | ||
25 | #include <QColor> | |
26 | #include <QComboBox> | |
27 | #include <QSpinBox> | |
28 | ||
29 | #include <pv/views/trace/signal.hpp> | |
30 | ||
31 | using std::pair; | |
32 | using std::shared_ptr; | |
33 | ||
34 | namespace pv { | |
35 | ||
36 | namespace data { | |
37 | class Analog; | |
38 | class AnalogSegment; | |
39 | class SignalBase; | |
40 | } | |
41 | ||
42 | namespace views { | |
43 | namespace trace { | |
44 | ||
45 | class AnalogSignal : public Signal | |
46 | { | |
47 | Q_OBJECT | |
48 | ||
49 | private: | |
50 | static const QPen AxisPen; | |
51 | static const QColor SignalColors[4]; | |
52 | static const QColor GridMajorColor, GridMinorColor; | |
53 | static const QColor SamplingPointColor; | |
54 | static const QColor SamplingPointColorLo; | |
55 | static const QColor SamplingPointColorNe; | |
56 | static const QColor SamplingPointColorHi; | |
57 | static const QColor ThresholdColor; | |
58 | static const QColor ThresholdColorLo; | |
59 | static const QColor ThresholdColorNe; | |
60 | static const QColor ThresholdColorHi; | |
61 | ||
62 | static const int64_t TracePaintBlockSize; | |
63 | static const float EnvelopeThreshold; | |
64 | ||
65 | static const int MaximumVDivs; | |
66 | static const int MaxScaleIndex, MinScaleIndex; | |
67 | static const int InfoTextMarginRight, InfoTextMarginBottom; | |
68 | ||
69 | enum DisplayType { | |
70 | DisplayAnalog = 0, | |
71 | DisplayConverted = 1, | |
72 | DisplayBoth = 2 | |
73 | }; | |
74 | ||
75 | public: | |
76 | AnalogSignal(pv::Session &session, shared_ptr<data::SignalBase> base); | |
77 | ||
78 | shared_ptr<pv::data::SignalData> data() const; | |
79 | ||
80 | virtual void save_settings(QSettings &settings) const; | |
81 | ||
82 | virtual void restore_settings(QSettings &settings); | |
83 | ||
84 | /** | |
85 | * Computes the vertical extents of the contents of this row item. | |
86 | * @return A pair containing the minimum and maximum y-values. | |
87 | */ | |
88 | pair<int, int> v_extents() const; | |
89 | ||
90 | /** | |
91 | * Paints the background layer of the signal with a QPainter | |
92 | * @param p the QPainter to paint into. | |
93 | * @param pp the painting parameters object to paint with.. | |
94 | */ | |
95 | void paint_back(QPainter &p, ViewItemPaintParams &pp); | |
96 | ||
97 | /** | |
98 | * Paints the mid-layer of the signal with a QPainter | |
99 | * @param p the QPainter to paint into. | |
100 | * @param pp the painting parameters object to paint with.. | |
101 | */ | |
102 | void paint_mid(QPainter &p, ViewItemPaintParams &pp); | |
103 | ||
104 | /** | |
105 | * Paints the foreground layer of the item with a QPainter | |
106 | * @param p the QPainter to paint into. | |
107 | * @param pp the painting parameters object to paint with. | |
108 | */ | |
109 | void paint_fore(QPainter &p, ViewItemPaintParams &pp); | |
110 | ||
111 | private: | |
112 | void paint_grid(QPainter &p, int y, int left, int right); | |
113 | ||
114 | void paint_trace(QPainter &p, | |
115 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
116 | int y, int left, const int64_t start, const int64_t end, | |
117 | const double pixels_offset, const double samples_per_pixel); | |
118 | ||
119 | void paint_envelope(QPainter &p, | |
120 | const shared_ptr<pv::data::AnalogSegment> &segment, | |
121 | int y, int left, const int64_t start, const int64_t end, | |
122 | const double pixels_offset, const double samples_per_pixel); | |
123 | ||
124 | void paint_logic_mid(QPainter &p, ViewItemPaintParams &pp); | |
125 | ||
126 | void paint_logic_caps(QPainter &p, QLineF *const lines, | |
127 | vector< pair<int64_t, bool> > &edges, | |
128 | bool level, double samples_per_pixel, double pixels_offset, | |
129 | float x_offset, float y_offset); | |
130 | ||
131 | shared_ptr<pv::data::AnalogSegment> get_analog_segment_to_paint() const; | |
132 | shared_ptr<pv::data::LogicSegment> get_logic_segment_to_paint() const; | |
133 | ||
134 | /** | |
135 | * Computes the scale factor from the scale index and vdiv settings. | |
136 | */ | |
137 | float get_resolution(int scale_index); | |
138 | ||
139 | void update_scale(); | |
140 | ||
141 | void update_conversion_widgets(); | |
142 | ||
143 | /** | |
144 | * Determines the closest level change (i.e. edge) to a given sample, which | |
145 | * is useful for e.g. the "snap to edge" functionality. | |
146 | * | |
147 | * @param sample_pos Sample to use | |
148 | * @return The changes left and right of the given position | |
149 | */ | |
150 | virtual vector<data::LogicSegment::EdgePair> get_nearest_level_changes(uint64_t sample_pos); | |
151 | ||
152 | void perform_autoranging(bool keep_divs, bool force_update); | |
153 | ||
154 | void reset_pixel_values(); | |
155 | void process_next_sample_value(float x, float value); | |
156 | ||
157 | protected: | |
158 | void populate_popup_form(QWidget *parent, QFormLayout *form); | |
159 | ||
160 | virtual void hover_point_changed(const QPoint &hp); | |
161 | ||
162 | private Q_SLOTS: | |
163 | virtual void on_setting_changed(const QString &key, const QVariant &value); | |
164 | ||
165 | void on_min_max_changed(float min, float max); | |
166 | ||
167 | void on_pos_vdivs_changed(int vdivs); | |
168 | void on_neg_vdivs_changed(int vdivs); | |
169 | void on_div_height_changed(int height); | |
170 | ||
171 | void on_resolution_changed(int index); | |
172 | ||
173 | void on_autoranging_changed(int state); | |
174 | ||
175 | void on_conversion_changed(int index); | |
176 | void on_conv_threshold_changed(int index=-1); | |
177 | void on_delayed_conversion_starter(); | |
178 | ||
179 | void on_display_type_changed(int index); | |
180 | ||
181 | private: | |
182 | QComboBox *resolution_cb_, *conversion_cb_, *conv_threshold_cb_, | |
183 | *display_type_cb_; | |
184 | QSpinBox *pvdiv_sb_, *nvdiv_sb_, *div_height_sb_; | |
185 | ||
186 | float scale_; | |
187 | int scale_index_; | |
188 | ||
189 | int div_height_; | |
190 | int pos_vdivs_, neg_vdivs_; // divs per positive/negative side | |
191 | float resolution_; // e.g. 10 for 10 V/div | |
192 | ||
193 | bool show_analog_minor_grid_; | |
194 | QColor high_fill_color_; | |
195 | bool show_sampling_points_, fill_high_areas_; | |
196 | ||
197 | DisplayType display_type_; | |
198 | bool autoranging_; | |
199 | int conversion_threshold_disp_mode_; | |
200 | ||
201 | vector<float> value_at_pixel_pos_; | |
202 | float value_at_hover_pos_; | |
203 | float prev_value_at_pixel_; // Only used during lookup table update | |
204 | float min_value_at_pixel_, max_value_at_pixel_; // Only used during lookup table update | |
205 | int current_pixel_pos_; // Only used during lookup table update | |
206 | }; | |
207 | ||
208 | } // namespace trace | |
209 | } // namespace views | |
210 | } // namespace pv | |
211 | ||
212 | #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_ANALOGSIGNAL_HPP |