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