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