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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_TRACE_DECODETRACE_HPP
21 #define PULSEVIEW_PV_VIEWS_TRACE_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 <QComboBox>
33 #include <QCheckBox>
34 #include <QElapsedTimer>
35 #include <QPolygon>
36 #include <QPushButton>
37 #include <QSignalMapper>
38 #include <QTimer>
39
40 #include <pv/binding/decoder.hpp>
41 #include <pv/data/decode/decoder.hpp>
42 #include <pv/data/decode/annotation.hpp>
43 #include <pv/data/decode/row.hpp>
44 #include <pv/data/signalbase.hpp>
45
46 #define DECODETRACE_SHOW_RENDER_TIME 0
47
48 using std::deque;
49 using std::list;
50 using std::map;
51 using std::mutex;
52 using std::pair;
53 using std::shared_ptr;
54 using std::vector;
55
56 using pv::data::SignalBase;
57 using pv::data::decode::Annotation;
58 using pv::data::decode::Decoder;
59 using pv::data::decode::Row;
60
61 struct srd_channel;
62 struct srd_decoder;
63
64 namespace pv {
65
66 class Session;
67
68 namespace data {
69 struct DecodeChannel;
70 class DecodeSignal;
71
72 namespace decode {
73 class Decoder;
74 class Row;
75 }
76 }  // namespace data
77
78 namespace widgets {
79 class DecoderGroupBox;
80 }
81
82 namespace views {
83 namespace trace {
84
85 class ContainerWidget;
86
87 struct DecodeTraceRow {
88         // When adding a field, make sure it's initialized properly in
89         // DecodeTrace::update_rows()
90
91         Row* decode_row;
92         unsigned int height, expanded_height, title_width, animation_step;
93         bool exists, currently_visible, has_hidden_classes;
94         bool expand_marker_highlighted, expanding, expanded, collapsing;
95         QPolygon expand_marker_shape;
96         float anim_height, anim_shape;
97
98         ContainerWidget* container;
99         QWidget* header_container;
100         QWidget* selector_container;
101         QCheckBox* row_visibility_checkbox;
102         vector<QCheckBox*> selectors;
103 };
104
105 class ContainerWidget : public QWidget
106 {
107         Q_OBJECT
108
109 public:
110         ContainerWidget(QWidget *parent = nullptr);
111
112         virtual void resizeEvent(QResizeEvent* event);
113
114 Q_SIGNALS:
115         void widgetResized(QWidget* sender);
116 };
117
118 class DecodeTrace : public Trace
119 {
120         Q_OBJECT
121
122 private:
123         static const QColor NoDecodeColor;
124         static const QColor ExpandMarkerWarnColor;
125         static const QColor ExpandMarkerHiddenColor;
126         static const uint8_t ExpansionAreaHeaderAlpha;
127         static const uint8_t ExpansionAreaAlpha;
128
129         static const int ArrowSize;
130         static const double EndCapWidth;
131         static const int RowTitleMargin;
132         static const int DrawPadding;
133
134         static const int MaxTraceUpdateRate;
135         static const int AnimationDurationInTicks;
136         static const int HiddenRowHideDelay;
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          * Sets the owner this trace in the view trace hierachy.
150          * @param The new owner of the trace.
151          */
152         virtual void set_owner(TraceTreeItemOwner *owner);
153
154         /**
155          * Computes the vertical extents of the contents of this row item.
156          * @return A pair containing the minimum and maximum y-values.
157          */
158         pair<int, int> v_extents() const;
159
160         /**
161          * Paints the background layer of the trace with a QPainter
162          * @param p the QPainter to paint into.
163          * @param pp the painting parameters object to paint with..
164          */
165         void paint_back(QPainter &p, ViewItemPaintParams &pp);
166
167         /**
168          * Paints the mid-layer of the trace with a QPainter
169          * @param p the QPainter to paint into.
170          * @param pp the painting parameters object to paint with.
171          */
172         void paint_mid(QPainter &p, ViewItemPaintParams &pp);
173
174         /**
175          * Paints the foreground layer of the trace with a QPainter
176          * @param p the QPainter to paint into.
177          * @param pp the painting parameters object to paint with.
178          */
179         void paint_fore(QPainter &p, ViewItemPaintParams &pp);
180
181         void populate_popup_form(QWidget *parent, QFormLayout *form);
182
183         QMenu* create_header_context_menu(QWidget *parent);
184
185         virtual QMenu* create_view_context_menu(QWidget *parent, QPoint &click_pos);
186
187         virtual void delete_pressed();
188
189         virtual void hover_point_changed(const QPoint &hp);
190
191         virtual void mouse_left_press_event(const QMouseEvent* event);
192
193 private:
194         void draw_annotations(deque<const Annotation*>& annotations, QPainter &p,
195                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row);
196
197         void draw_annotation(const Annotation* a, QPainter &p,
198                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row) const;
199
200         void draw_annotation_block(qreal start, qreal end, uint32_t ann_class,
201                 bool use_ann_format, QPainter &p, int y, const DecodeTraceRow& row) const;
202
203         void draw_instant(const Annotation* a, QPainter &p, qreal x, int y) const;
204
205         void draw_range(const Annotation* a, QPainter &p, qreal start, qreal end,
206                 int y, const ViewItemPaintParams &pp, int row_title_width) const;
207
208         void draw_error(QPainter &p, const QString &message, const ViewItemPaintParams &pp);
209
210         void draw_unresolved_period(QPainter &p, int left, int right) const;
211
212         pair<double, double> get_pixels_offset_samples_per_pixel() const;
213
214         /**
215          * Determines the start and end sample for a given pixel range.
216          * @param x_start the X coordinate of the start sample in the view
217          * @param x_end the X coordinate of the end sample in the view
218          * @return Returns a pair containing the start sample and the end
219          *      sample that correspond to the start and end coordinates.
220          */
221         pair<uint64_t, uint64_t> get_view_sample_range(int x_start, int x_end) const;
222
223         unsigned int get_row_y(const DecodeTraceRow* row) const;
224
225         DecodeTraceRow* get_row_at_point(const QPoint &point);
226
227         const QString get_annotation_at_point(const QPoint &point);
228
229         void update_stack_button();
230
231         void create_decoder_form(int index, shared_ptr<Decoder> &dec,
232                 QWidget *parent, QFormLayout *form);
233
234         QComboBox* create_channel_selector(QWidget *parent,
235                 const data::decode::DecodeChannel *ch);
236         QComboBox* create_channel_selector_init_state(QWidget *parent,
237                 const data::decode::DecodeChannel *ch);
238
239         void export_annotations(deque<const Annotation*>& annotations) const;
240
241         void initialize_row_widgets(DecodeTraceRow* r, unsigned int row_id);
242         void update_rows();
243
244         /**
245          * Sets row r to expanded state without forcing an update of the view
246          */
247         void set_row_expanded(DecodeTraceRow* r);
248
249         /**
250          * Sets row r to collapsed state without forcing an update of the view
251          */
252         void set_row_collapsed(DecodeTraceRow* r);
253
254         void update_expanded_rows();
255
256 private Q_SLOTS:
257         void on_setting_changed(const QString &key, const QVariant &value);
258
259         void on_color_changed(const QColor &color);
260
261         void on_new_annotations();
262         void on_delayed_trace_update();
263         void on_decode_reset();
264         void on_decode_finished();
265         void on_pause_decode();
266
267         void on_delete();
268
269         void on_channel_selected(int);
270
271         void on_channels_updated();
272
273         void on_init_state_changed(int);
274
275         void on_stack_decoder(srd_decoder *decoder);
276
277         void on_delete_decoder(int index);
278
279         void on_show_hide_decoder(int index);
280         void on_show_hide_row(int row_id);
281 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
282         void on_show_hide_class(QObject* sender);
283 #else
284         void on_show_hide_class(QWidget* sender);
285 #endif
286         void on_show_all_classes();
287         void on_hide_all_classes();
288         void on_row_container_resized(QWidget* sender);
289
290         void on_copy_annotation_to_clipboard();
291
292         void on_export_row();
293         void on_export_all_rows();
294         void on_export_row_with_cursor();
295         void on_export_all_rows_with_cursor();
296         void on_export_row_from_here();
297         void on_export_all_rows_from_here();
298
299         void on_animation_timer();
300         void on_hide_hidden_rows();
301
302 private:
303         pv::Session &session_;
304         shared_ptr<data::DecodeSignal> decode_signal_;
305
306         deque<DecodeTraceRow> rows_;
307         mutable mutex row_modification_mutex_;
308
309         map<QComboBox*, uint16_t> channel_id_map_;  // channel selector -> decode channel ID
310         map<QComboBox*, uint16_t> init_state_map_;  // init state selector -> decode channel ID
311         list< shared_ptr<pv::binding::Decoder> > bindings_;
312
313         const Row* selected_row_;
314         pair<uint64_t, uint64_t> selected_sample_range_;
315
316         vector<pv::widgets::DecoderGroupBox*> decoder_forms_;
317         QPushButton* stack_button_;
318
319         unsigned int default_row_height_, annotation_height_;
320         unsigned int visible_rows_;
321
322         int min_useful_label_width_;
323         bool always_show_all_rows_, show_hidden_rows_;
324
325         QSignalMapper delete_mapper_, show_hide_mapper_;
326         QSignalMapper row_show_hide_mapper_, class_show_hide_mapper_;
327
328         QTimer delayed_trace_updater_, animation_timer_, delayed_hidden_row_hider_;
329
330         QPolygon default_marker_shape_;
331
332 #if DECODETRACE_SHOW_RENDER_TIME
333         QElapsedTimer render_time_;
334 #endif
335 };
336
337 } // namespace trace
338 } // namespace views
339 } // namespace pv
340
341 #endif // PULSEVIEW_PV_VIEWS_TRACE_DECODETRACE_HPP