]> sigrok.org Git - pulseview.git/blob - pv/views/trace/decodetrace.hpp
DecodeTrace: Add FlowLayout and integrate it
[pulseview.git] / pv / views / trace / decodetrace.hpp
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_DECODETRACE_HPP
21 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_DECODETRACE_HPP
22
23 #include <config.h>
24 #include "trace.hpp"
25
26 #include <list>
27 #include <map>
28 #include <memory>
29 #include <vector>
30
31 #include <QColor>
32 #include <QCheckBox>
33 #include <QElapsedTimer>
34 #include <QPolygon>
35 #include <QPushButton>
36 #include <QSignalMapper>
37 #include <QTimer>
38
39 #include <pv/binding/decoder.hpp>
40 #include <pv/data/decode/decoder.hpp>
41 #include <pv/data/decode/annotation.hpp>
42 #include <pv/data/decode/row.hpp>
43 #include <pv/data/signalbase.hpp>
44
45 #define DECODETRACE_SHOW_RENDER_TIME 0
46
47 using std::deque;
48 using std::list;
49 using std::map;
50 using std::mutex;
51 using std::pair;
52 using std::shared_ptr;
53 using std::vector;
54
55 using pv::data::SignalBase;
56 using pv::data::decode::Annotation;
57 using pv::data::decode::Decoder;
58 using pv::data::decode::Row;
59
60 struct srd_channel;
61 struct srd_decoder;
62
63 namespace pv {
64
65 class Session;
66
67 namespace data {
68 struct DecodeChannel;
69 class DecodeSignal;
70
71 namespace decode {
72 class Decoder;
73 class Row;
74 }
75 }  // namespace data
76
77 namespace widgets {
78 class DecoderGroupBox;
79 }
80
81 namespace views {
82 namespace trace {
83
84 class ContainerWidget;
85
86 struct DecodeTraceRow {
87         // When adding a field, make sure it's initialized properly in
88         // DecodeTrace::update_rows()
89
90         Row* decode_row;
91         unsigned int height, expanded_height, title_width, animation_step;
92         bool exists, currently_visible, has_hidden_classes;
93         bool expand_marker_highlighted, expanding, expanded, collapsing;
94         QPolygon expand_marker_shape;
95         float anim_height, anim_shape;
96
97         ContainerWidget* container;
98         QWidget* header_container;
99         QWidget* selector_container;
100         vector<QCheckBox*> selectors;
101
102         QColor row_color;
103         map<uint32_t, QColor> ann_class_color;
104 };
105
106 class ContainerWidget : public QWidget
107 {
108         Q_OBJECT
109
110 public:
111         ContainerWidget(QWidget *parent = nullptr);
112
113         virtual void resizeEvent(QResizeEvent* event);
114
115 Q_SIGNALS:
116         void widgetResized(QWidget* sender);
117 };
118
119 class DecodeTrace : public Trace
120 {
121         Q_OBJECT
122
123 private:
124         static const QColor ErrorBgColor;
125         static const QColor NoDecodeColor;
126         static const QColor ExpandMarkerWarnColor;
127         static const uint8_t ExpansionAreaHeaderAlpha;
128         static const uint8_t ExpansionAreaAlpha;
129
130         static const int ArrowSize;
131         static const double EndCapWidth;
132         static const int RowTitleMargin;
133         static const int DrawPadding;
134
135         static const int MaxTraceUpdateRate;
136         static const unsigned int AnimationDurationInTicks;
137
138 public:
139         DecodeTrace(pv::Session &session, shared_ptr<SignalBase> signalbase,
140                 int index);
141
142         ~DecodeTrace();
143
144         bool enabled() const;
145
146         shared_ptr<SignalBase> base() const;
147
148         /**
149          * Computes the vertical extents of the contents of this row item.
150          * @return A pair containing the minimum and maximum y-values.
151          */
152         pair<int, int> v_extents() const;
153
154         /**
155          * Paints the background layer of the trace with a QPainter
156          * @param p the QPainter to paint into.
157          * @param pp the painting parameters object to paint with..
158          */
159         void paint_back(QPainter &p, ViewItemPaintParams &pp);
160
161         /**
162          * Paints the mid-layer of the trace with a QPainter
163          * @param p the QPainter to paint into.
164          * @param pp the painting parameters object to paint with.
165          */
166         void paint_mid(QPainter &p, ViewItemPaintParams &pp);
167
168         /**
169          * Paints the foreground layer of the trace with a QPainter
170          * @param p the QPainter to paint into.
171          * @param pp the painting parameters object to paint with.
172          */
173         void paint_fore(QPainter &p, ViewItemPaintParams &pp);
174
175         void populate_popup_form(QWidget *parent, QFormLayout *form);
176
177         QMenu* create_header_context_menu(QWidget *parent);
178
179         virtual QMenu* create_view_context_menu(QWidget *parent, QPoint &click_pos);
180
181         virtual void delete_pressed();
182
183         virtual void hover_point_changed(const QPoint &hp);
184
185         virtual void mouse_left_press_event(const QMouseEvent* event);
186
187 private:
188         void draw_annotations(vector<const Annotation*> annotations, QPainter &p,
189                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row);
190
191         void draw_annotation(const Annotation* a, QPainter &p,
192                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row) const;
193
194         void draw_annotation_block(qreal start, qreal end, Annotation::Class ann_class,
195                 bool use_ann_format, QPainter &p, int y, const DecodeTraceRow& row) const;
196
197         void draw_instant(const Annotation* a, QPainter &p, qreal x, int y) const;
198
199         void draw_range(const Annotation* a, QPainter &p, qreal start, qreal end,
200                 int y, const ViewItemPaintParams &pp, int row_title_width) const;
201
202         void draw_error(QPainter &p, const QString &message, const ViewItemPaintParams &pp);
203
204         void draw_unresolved_period(QPainter &p, int left, int right) const;
205
206         pair<double, double> get_pixels_offset_samples_per_pixel() const;
207
208         /**
209          * Determines the start and end sample for a given pixel range.
210          * @param x_start the X coordinate of the start sample in the view
211          * @param x_end the X coordinate of the end sample in the view
212          * @return Returns a pair containing the start sample and the end
213          *      sample that correspond to the start and end coordinates.
214          */
215         pair<uint64_t, uint64_t> get_view_sample_range(int x_start, int x_end) const;
216
217         QColor get_row_color(int row_index) const;
218         QColor get_annotation_color(QColor row_color, int annotation_index) const;
219
220         unsigned int get_row_y(const DecodeTraceRow* row) const;
221
222         DecodeTraceRow* get_row_at_point(const QPoint &point);
223
224         const QString get_annotation_at_point(const QPoint &point);
225
226         void update_stack_button();
227
228         void create_decoder_form(int index, shared_ptr<Decoder> &dec,
229                 QWidget *parent, QFormLayout *form);
230
231         QComboBox* create_channel_selector(QWidget *parent,
232                 const data::decode::DecodeChannel *ch);
233         QComboBox* create_channel_selector_init_state(QWidget *parent,
234                 const data::decode::DecodeChannel *ch);
235
236         void export_annotations(vector<const Annotation*> *annotations) const;
237
238         void initialize_row_widgets(DecodeTraceRow* r, unsigned int row_id);
239         void update_rows();
240
241         /**
242          * Sets row r to expanded state without forcing an update of the view
243          */
244         void set_row_expanded(DecodeTraceRow* r);
245
246         /**
247          * Sets row r to collapsed state without forcing an update of the view
248          */
249         void set_row_collapsed(DecodeTraceRow* r);
250
251         void update_expanded_rows();
252
253 private Q_SLOTS:
254         void on_setting_changed(const QString &key, const QVariant &value);
255
256         void on_new_annotations();
257         void on_delayed_trace_update();
258         void on_decode_reset();
259         void on_decode_finished();
260         void on_pause_decode();
261
262         void on_delete();
263
264         void on_channel_selected(int);
265
266         void on_channels_updated();
267
268         void on_init_state_changed(int);
269
270         void on_stack_decoder(srd_decoder *decoder);
271
272         void on_delete_decoder(int index);
273
274         void on_show_hide_decoder(int index);
275         void on_show_hide_row(int row_id);
276         void on_show_hide_class(QWidget* sender);
277         void on_row_container_resized(QWidget* sender);
278
279         void on_copy_annotation_to_clipboard();
280
281         void on_export_row();
282         void on_export_all_rows();
283         void on_export_row_with_cursor();
284         void on_export_all_rows_with_cursor();
285         void on_export_row_from_here();
286         void on_export_all_rows_from_here();
287
288         void on_animation_timer();
289
290 private:
291         pv::Session &session_;
292         shared_ptr<data::DecodeSignal> decode_signal_;
293
294         deque<DecodeTraceRow> rows_;
295         mutable mutex row_modification_mutex_;
296
297         map<QComboBox*, uint16_t> channel_id_map_;  // channel selector -> decode channel ID
298         map<QComboBox*, uint16_t> init_state_map_;  // init state selector -> decode channel ID
299         list< shared_ptr<pv::binding::Decoder> > bindings_;
300
301         const Row* selected_row_;
302         pair<uint64_t, uint64_t> selected_sample_range_;
303
304         vector<pv::widgets::DecoderGroupBox*> decoder_forms_;
305         QPushButton* stack_button_;
306
307         unsigned int default_row_height_, annotation_height_;
308         unsigned int visible_rows_, max_visible_rows_;
309
310         int min_useful_label_width_;
311         bool always_show_all_rows_;
312
313         QSignalMapper delete_mapper_, show_hide_mapper_;
314         QSignalMapper row_show_hide_mapper_, class_show_hide_mapper_;
315
316         QTimer delayed_trace_updater_, animation_timer_;
317
318         QPolygon default_marker_shape_;
319
320 #if DECODETRACE_SHOW_RENDER_TIME
321         QElapsedTimer render_time_;
322 #endif
323 };
324
325 } // namespace trace
326 } // namespace views
327 } // namespace pv
328
329 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_DECODETRACE_HPP