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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_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         map<uint32_t, QColor> ann_class_dark_color;
105 };
106
107 class ContainerWidget : public QWidget
108 {
109         Q_OBJECT
110
111 public:
112         ContainerWidget(QWidget *parent = nullptr);
113
114         virtual void resizeEvent(QResizeEvent* event);
115
116 Q_SIGNALS:
117         void widgetResized(QWidget* sender);
118 };
119
120 class DecodeTrace : public Trace
121 {
122         Q_OBJECT
123
124 private:
125         static const QColor ErrorBgColor;
126         static const QColor NoDecodeColor;
127         static const QColor ExpandMarkerWarnColor;
128         static const QColor ExpandMarkerHiddenColor;
129         static const uint8_t ExpansionAreaHeaderAlpha;
130         static const uint8_t ExpansionAreaAlpha;
131
132         static const int ArrowSize;
133         static const double EndCapWidth;
134         static const int RowTitleMargin;
135         static const int DrawPadding;
136
137         static const int MaxTraceUpdateRate;
138         static const int AnimationDurationInTicks;
139         static const int HiddenRowHideDelay;
140
141 public:
142         DecodeTrace(pv::Session &session, shared_ptr<SignalBase> signalbase,
143                 int index);
144
145         ~DecodeTrace();
146
147         bool enabled() const;
148
149         shared_ptr<SignalBase> base() const;
150
151         /**
152          * Computes the vertical extents of the contents of this row item.
153          * @return A pair containing the minimum and maximum y-values.
154          */
155         pair<int, int> v_extents() const;
156
157         /**
158          * Paints the background layer of the trace with a QPainter
159          * @param p the QPainter to paint into.
160          * @param pp the painting parameters object to paint with..
161          */
162         void paint_back(QPainter &p, ViewItemPaintParams &pp);
163
164         /**
165          * Paints the mid-layer of the trace with a QPainter
166          * @param p the QPainter to paint into.
167          * @param pp the painting parameters object to paint with.
168          */
169         void paint_mid(QPainter &p, ViewItemPaintParams &pp);
170
171         /**
172          * Paints the foreground layer of the trace with a QPainter
173          * @param p the QPainter to paint into.
174          * @param pp the painting parameters object to paint with.
175          */
176         void paint_fore(QPainter &p, ViewItemPaintParams &pp);
177
178         void populate_popup_form(QWidget *parent, QFormLayout *form);
179
180         QMenu* create_header_context_menu(QWidget *parent);
181
182         virtual QMenu* create_view_context_menu(QWidget *parent, QPoint &click_pos);
183
184         virtual void delete_pressed();
185
186         virtual void hover_point_changed(const QPoint &hp);
187
188         virtual void mouse_left_press_event(const QMouseEvent* event);
189
190 private:
191         void draw_annotations(deque<const Annotation*>& annotations, QPainter &p,
192                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row);
193
194         void draw_annotation(const Annotation* a, QPainter &p,
195                 const ViewItemPaintParams &pp, int y, const DecodeTraceRow& row) const;
196
197         void draw_annotation_block(qreal start, qreal end, Annotation::Class ann_class,
198                 bool use_ann_format, QPainter &p, int y, const DecodeTraceRow& row) const;
199
200         void draw_instant(const Annotation* a, QPainter &p, qreal x, int y) const;
201
202         void draw_range(const Annotation* a, QPainter &p, qreal start, qreal end,
203                 int y, const ViewItemPaintParams &pp, int row_title_width) const;
204
205         void draw_error(QPainter &p, const QString &message, const ViewItemPaintParams &pp);
206
207         void draw_unresolved_period(QPainter &p, int left, int right) const;
208
209         pair<double, double> get_pixels_offset_samples_per_pixel() const;
210
211         /**
212          * Determines the start and end sample for a given pixel range.
213          * @param x_start the X coordinate of the start sample in the view
214          * @param x_end the X coordinate of the end sample in the view
215          * @return Returns a pair containing the start sample and the end
216          *      sample that correspond to the start and end coordinates.
217          */
218         pair<uint64_t, uint64_t> get_view_sample_range(int x_start, int x_end) const;
219
220         QColor get_row_color(int row_index) const;
221         QColor get_annotation_color(QColor row_color, int annotation_index) 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_new_annotations();
260         void on_delayed_trace_update();
261         void on_decode_reset();
262         void on_decode_finished();
263         void on_pause_decode();
264
265         void on_delete();
266
267         void on_channel_selected(int);
268
269         void on_channels_updated();
270
271         void on_init_state_changed(int);
272
273         void on_stack_decoder(srd_decoder *decoder);
274
275         void on_delete_decoder(int index);
276
277         void on_show_hide_decoder(int index);
278         void on_show_hide_row(int row_id);
279         void on_show_hide_class(QWidget* sender);
280         void on_show_all_classes();
281         void on_hide_all_classes();
282         void on_row_container_resized(QWidget* sender);
283
284         void on_copy_annotation_to_clipboard();
285
286         void on_export_row();
287         void on_export_all_rows();
288         void on_export_row_with_cursor();
289         void on_export_all_rows_with_cursor();
290         void on_export_row_from_here();
291         void on_export_all_rows_from_here();
292
293         void on_animation_timer();
294         void on_hide_hidden_rows();
295
296 private:
297         pv::Session &session_;
298         shared_ptr<data::DecodeSignal> decode_signal_;
299
300         deque<DecodeTraceRow> rows_;
301         mutable mutex row_modification_mutex_;
302
303         map<QComboBox*, uint16_t> channel_id_map_;  // channel selector -> decode channel ID
304         map<QComboBox*, uint16_t> init_state_map_;  // init state selector -> decode channel ID
305         list< shared_ptr<pv::binding::Decoder> > bindings_;
306
307         const Row* selected_row_;
308         pair<uint64_t, uint64_t> selected_sample_range_;
309
310         vector<pv::widgets::DecoderGroupBox*> decoder_forms_;
311         QPushButton* stack_button_;
312
313         unsigned int default_row_height_, annotation_height_;
314         unsigned int visible_rows_, max_visible_rows_;
315
316         int min_useful_label_width_;
317         bool always_show_all_rows_, show_hidden_rows_;
318
319         QSignalMapper delete_mapper_, show_hide_mapper_;
320         QSignalMapper row_show_hide_mapper_, class_show_hide_mapper_;
321
322         QTimer delayed_trace_updater_, animation_timer_, delayed_hidden_row_hider_;
323
324         QPolygon default_marker_shape_;
325
326 #if DECODETRACE_SHOW_RENDER_TIME
327         QElapsedTimer render_time_;
328 #endif
329 };
330
331 } // namespace trace
332 } // namespace views
333 } // namespace pv
334
335 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_DECODETRACE_HPP