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adb4b10c | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
adb4b10c JH |
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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
7a01bd36 JH |
21 | #ifndef PULSEVIEW_PV_VIEW_VIEW_HPP |
22 | #define PULSEVIEW_PV_VIEW_VIEW_HPP | |
adb4b10c JH |
23 | |
24 | #include <stdint.h> | |
25 | ||
8914fe79 | 26 | #include <list> |
f9abf97e | 27 | #include <memory> |
1bc6525b | 28 | #include <set> |
448a72cf | 29 | #include <unordered_map> |
38eeddea JH |
30 | #include <vector> |
31 | ||
adb4b10c | 32 | #include <QAbstractScrollArea> |
2e04f9bd | 33 | #include <QSizeF> |
32218d3e | 34 | #include <QTimer> |
adb4b10c | 35 | |
2acdb232 | 36 | #include <pv/data/signaldata.hpp> |
ef454ad5 | 37 | #include <pv/util.hpp> |
1bc6525b | 38 | |
2acdb232 | 39 | #include "cursorpair.hpp" |
8914fe79 | 40 | #include "flag.hpp" |
2acdb232 | 41 | #include "rowitemowner.hpp" |
f76af637 | 42 | |
cf124e47 JH |
43 | namespace sigrok { |
44 | class ChannelGroup; | |
45 | } | |
46 | ||
51e77110 JH |
47 | namespace pv { |
48 | ||
2b81ae46 | 49 | class Session; |
adb4b10c | 50 | |
cdf7bea7 JH |
51 | namespace view { |
52 | ||
84a0d458 | 53 | class CursorHeader; |
1d8dca91 | 54 | class Header; |
ccdd3ef5 | 55 | class Ruler; |
cf124e47 | 56 | class Trace; |
cdf7bea7 JH |
57 | class Viewport; |
58 | ||
eae6e30a | 59 | class View : public QAbstractScrollArea, public RowItemOwner { |
adb4b10c JH |
60 | Q_OBJECT |
61 | ||
32218d3e JH |
62 | private: |
63 | enum StickyEvents { | |
76fea660 JH |
64 | RowItemHExtentsChanged = 1, |
65 | RowItemVExtentsChanged = 2 | |
32218d3e JH |
66 | }; |
67 | ||
adb4b10c JH |
68 | private: |
69 | static const double MaxScale; | |
70 | static const double MinScale; | |
71 | ||
f25770e2 | 72 | static const int MaxScrollValue; |
c7b03d9d | 73 | static const int MaxViewAutoUpdateRate; |
f25770e2 | 74 | |
361c560e JH |
75 | static const int ScaleUnits[3]; |
76 | ||
adb4b10c | 77 | public: |
2b81ae46 | 78 | explicit View(Session &session, QWidget *parent = 0); |
adb4b10c | 79 | |
2b81ae46 JH |
80 | Session& session(); |
81 | const Session& session() const; | |
1d19ef83 | 82 | |
eae6e30a JH |
83 | /** |
84 | * Returns the view of the owner. | |
85 | */ | |
86 | virtual pv::view::View* view(); | |
87 | ||
88 | /** | |
89 | * Returns the view of the owner. | |
90 | */ | |
91 | virtual const pv::view::View* view() const; | |
92 | ||
2ae445ba SA |
93 | Viewport* viewport(); |
94 | ||
95 | const Viewport* viewport() const; | |
96 | ||
2496bf45 JH |
97 | /** |
98 | * Gets a list of time markers. | |
99 | */ | |
100 | std::vector< std::shared_ptr<TimeItem> > time_items() const; | |
101 | ||
e2f5223b JH |
102 | /** |
103 | * Returns the view time scale in seconds per pixel. | |
104 | */ | |
adb4b10c | 105 | double scale() const; |
e2f5223b JH |
106 | |
107 | /** | |
108 | * Returns the time offset of the left edge of the view in | |
109 | * seconds. | |
110 | */ | |
adb4b10c | 111 | double offset() const; |
f8400017 JH |
112 | |
113 | /** | |
114 | * Returns the vertical scroll offset. | |
115 | */ | |
7ff0145f | 116 | int owner_visual_v_offset() const; |
adb4b10c | 117 | |
4d476647 JH |
118 | /** |
119 | * Sets the visual v-offset. | |
120 | */ | |
121 | void set_v_offset(int offset); | |
122 | ||
361c560e JH |
123 | /** |
124 | * Returns the SI prefix to apply to the graticule time markings. | |
125 | */ | |
126 | unsigned int tick_prefix() const; | |
127 | ||
d40f4db7 SA |
128 | /** |
129 | * Returns the number of fractional digits shown for the time markings. | |
130 | */ | |
131 | unsigned int tick_precision() const; | |
132 | ||
361c560e JH |
133 | /** |
134 | * Returns period of the graticule time markings. | |
135 | */ | |
136 | double tick_period() const; | |
137 | ||
ef454ad5 SA |
138 | /** |
139 | * Returns the unit of time currently used. | |
140 | */ | |
141 | util::TimeUnit time_unit() const; | |
142 | ||
3e769a37 JH |
143 | /** |
144 | * Returns the number of nested parents that this row item owner has. | |
145 | */ | |
146 | unsigned int depth() const; | |
147 | ||
adb4b10c | 148 | void zoom(double steps); |
17c0f398 | 149 | void zoom(double steps, int offset); |
adb4b10c | 150 | |
ce11b2ea | 151 | void zoom_fit(bool gui_state); |
ca46b534 | 152 | |
d1e7d82c JH |
153 | void zoom_one_to_one(); |
154 | ||
e2f5223b JH |
155 | /** |
156 | * Sets the scale and offset. | |
157 | * @param scale The new view scale in seconds per pixel. | |
158 | * @param offset The view time offset in seconds. | |
159 | */ | |
adb4b10c JH |
160 | void set_scale_offset(double scale, double offset); |
161 | ||
f9abf97e | 162 | std::set< std::shared_ptr<pv::data::SignalData> > |
1bc6525b JH |
163 | get_visible_data() const; |
164 | ||
165 | std::pair<double, double> get_time_extents() const; | |
166 | ||
c7b03d9d SA |
167 | /** |
168 | * Enables or disables sticky scrolling, i.e. the view always shows | |
169 | * the most recent samples when capturing data. | |
170 | */ | |
171 | void enable_sticky_scrolling(bool state); | |
172 | ||
f76af637 JH |
173 | /** |
174 | * Returns true if cursors are displayed. false otherwise. | |
175 | */ | |
176 | bool cursors_shown() const; | |
177 | ||
178 | /** | |
179 | * Shows or hides the cursors. | |
180 | */ | |
181 | void show_cursors(bool show = true); | |
182 | ||
b4d91e56 JH |
183 | /** |
184 | * Moves the cursors to a convenient position in the view. | |
185 | */ | |
186 | void centre_cursors(); | |
187 | ||
f76af637 JH |
188 | /** |
189 | * Returns a reference to the pair of cursors. | |
190 | */ | |
5c5ce757 | 191 | std::shared_ptr<CursorPair> cursors() const; |
58864c5c | 192 | |
8914fe79 JH |
193 | /** |
194 | * Adds a new flag at a specified time. | |
195 | */ | |
196 | void add_flag(double time); | |
197 | ||
198 | /** | |
199 | * Removes a flag from the list. | |
200 | */ | |
201 | void remove_flag(std::shared_ptr<Flag> flag); | |
202 | ||
203 | /** | |
204 | * Gets the list of flags. | |
205 | */ | |
206 | std::vector< std::shared_ptr<Flag> > flags() const; | |
207 | ||
cbd80f64 JH |
208 | const QPoint& hover_point() const; |
209 | ||
9cef9567 | 210 | void update_viewport(); |
7ff0145f JH |
211 | |
212 | void restack_all_row_items(); | |
9cef9567 | 213 | |
e9213170 | 214 | Q_SIGNALS: |
cbd80f64 JH |
215 | void hover_point_changed(); |
216 | ||
8b454527 JH |
217 | void selection_changed(); |
218 | ||
e0fc5810 JH |
219 | void scale_offset_changed(); |
220 | ||
c7b03d9d SA |
221 | void sticky_scrolling_changed(bool state); |
222 | ||
ce11b2ea SA |
223 | void always_zoom_to_fit_changed(bool state); |
224 | ||
adb4b10c | 225 | private: |
f25770e2 | 226 | void get_scroll_layout(double &length, double &offset) const; |
3925091a JH |
227 | |
228 | /** | |
229 | * Simultaneously sets the zoom and offset. | |
230 | * @param scale The scale to set the view to in seconds per pixel. This | |
231 | * value is clamped between MinScale and MaxScale. | |
232 | * @param offset The offset of the left edge of the view in seconds. | |
233 | */ | |
d1e7d82c JH |
234 | void set_zoom(double scale, int offset); |
235 | ||
361c560e JH |
236 | /** |
237 | * Find a tick spacing and number formatting that does not cause | |
238 | * the values to collide. | |
239 | */ | |
240 | void calculate_tick_spacing(); | |
241 | ||
adb4b10c JH |
242 | void update_scroll(); |
243 | ||
d7c0ca4a JH |
244 | void update_layout(); |
245 | ||
eae6e30a JH |
246 | /** |
247 | * Satisifies RowItem functionality. | |
248 | * @param p the QPainter to paint into. | |
b3f44329 | 249 | * @param rect the rectangle of the header area. |
eae6e30a JH |
250 | * @param hover true if the label is being hovered over by the mouse. |
251 | */ | |
b3f44329 | 252 | void paint_label(QPainter &p, const QRect &rect, bool hover); |
eae6e30a JH |
253 | |
254 | /** | |
255 | * Computes the outline rectangle of a label. | |
b3f44329 | 256 | * @param rect the rectangle of the header area. |
eae6e30a JH |
257 | * @return Returns the rectangle of the signal label. |
258 | */ | |
b3f44329 | 259 | QRectF label_rect(const QRectF &rect); |
eae6e30a | 260 | |
cf124e47 JH |
261 | RowItemOwner* find_prevalent_trace_group( |
262 | const std::shared_ptr<sigrok::ChannelGroup> &group, | |
263 | const std::unordered_map<std::shared_ptr<sigrok::Channel>, | |
264 | std::shared_ptr<Signal> > &signal_map); | |
265 | ||
266 | static std::vector< std::shared_ptr<Trace> > | |
267 | extract_new_traces_for_channels( | |
448a72cf | 268 | const std::vector< std::shared_ptr<sigrok::Channel> > &channels, |
cf124e47 | 269 | const std::unordered_map<std::shared_ptr<sigrok::Channel>, |
448a72cf | 270 | std::shared_ptr<Signal> > &signal_map, |
cf124e47 | 271 | std::set< std::shared_ptr<Trace> > &add_list); |
448a72cf | 272 | |
ef454ad5 SA |
273 | void determine_time_unit(); |
274 | ||
adb4b10c | 275 | private: |
cbd80f64 JH |
276 | bool eventFilter(QObject *object, QEvent *event); |
277 | ||
adb4b10c JH |
278 | bool viewportEvent(QEvent *e); |
279 | ||
280 | void resizeEvent(QResizeEvent *e); | |
281 | ||
32218d3e | 282 | public: |
6e2c3c85 | 283 | void row_item_appearance_changed(bool label, bool content); |
98cfe4e8 | 284 | void time_item_appearance_changed(bool label, bool content); |
32218d3e JH |
285 | |
286 | void extents_changed(bool horz, bool vert); | |
287 | ||
e9213170 | 288 | private Q_SLOTS: |
cbd80f64 | 289 | |
b16907d3 | 290 | void h_scroll_value_changed(int value); |
f8400017 | 291 | void v_scroll_value_changed(); |
adb4b10c | 292 | |
69dd2b03 | 293 | void signals_changed(); |
7ee199a7 | 294 | void capture_state_updated(int state); |
adb4b10c JH |
295 | void data_updated(); |
296 | ||
c7b03d9d SA |
297 | void perform_delayed_view_update(); |
298 | ||
32218d3e | 299 | void process_sticky_events(); |
d7c0ca4a | 300 | |
33c62f44 JH |
301 | void on_hover_point_changed(); |
302 | ||
adb4b10c | 303 | private: |
2b81ae46 | 304 | Session &session_; |
adb4b10c | 305 | |
8dbbc7f0 JH |
306 | Viewport *viewport_; |
307 | Ruler *ruler_; | |
8dbbc7f0 | 308 | Header *header_; |
adb4b10c | 309 | |
e2f5223b | 310 | /// The view time scale in seconds per pixel. |
8dbbc7f0 | 311 | double scale_; |
e2f5223b JH |
312 | |
313 | /// The view time offset in seconds. | |
8dbbc7f0 | 314 | double offset_; |
adb4b10c | 315 | |
8dbbc7f0 | 316 | bool updating_scroll_; |
c7b03d9d | 317 | bool sticky_scrolling_; |
ce11b2ea | 318 | bool always_zoom_to_fit_; |
c7b03d9d | 319 | QTimer delayed_view_updater_; |
cbd80f64 | 320 | |
361c560e JH |
321 | double tick_period_; |
322 | unsigned int tick_prefix_; | |
d40f4db7 | 323 | unsigned int tick_precision_; |
ef454ad5 | 324 | util::TimeUnit time_unit_; |
361c560e | 325 | |
8dbbc7f0 | 326 | bool show_cursors_; |
5c5ce757 | 327 | std::shared_ptr<CursorPair> cursors_; |
f76af637 | 328 | |
8914fe79 JH |
329 | std::list< std::shared_ptr<Flag> > flags_; |
330 | char next_flag_text_; | |
331 | ||
8dbbc7f0 | 332 | QPoint hover_point_; |
32218d3e | 333 | |
8dbbc7f0 JH |
334 | unsigned int sticky_events_; |
335 | QTimer lazy_event_handler_; | |
adb4b10c JH |
336 | }; |
337 | ||
cdf7bea7 JH |
338 | } // namespace view |
339 | } // namespace pv | |
340 | ||
7a01bd36 | 341 | #endif // PULSEVIEW_PV_VIEW_VIEW_HPP |