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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 | ||
640d091b UH |
21 | #ifndef PULSEVIEW_PV_VIEW_VIEW_H |
22 | #define PULSEVIEW_PV_VIEW_VIEW_H | |
adb4b10c JH |
23 | |
24 | #include <stdint.h> | |
25 | ||
f9abf97e | 26 | #include <memory> |
1bc6525b | 27 | #include <set> |
448a72cf | 28 | #include <unordered_map> |
38eeddea JH |
29 | #include <vector> |
30 | ||
adb4b10c | 31 | #include <QAbstractScrollArea> |
2e04f9bd | 32 | #include <QSizeF> |
32218d3e | 33 | #include <QTimer> |
adb4b10c | 34 | |
2acdb232 | 35 | #include <pv/data/signaldata.hpp> |
1bc6525b | 36 | |
2acdb232 JH |
37 | #include "cursorpair.hpp" |
38 | #include "rowitemowner.hpp" | |
f76af637 | 39 | |
51e77110 JH |
40 | namespace pv { |
41 | ||
2b81ae46 | 42 | class Session; |
adb4b10c | 43 | |
cdf7bea7 JH |
44 | namespace view { |
45 | ||
84a0d458 | 46 | class CursorHeader; |
1d8dca91 | 47 | class Header; |
ccdd3ef5 | 48 | class Ruler; |
cdf7bea7 JH |
49 | class Viewport; |
50 | ||
eae6e30a | 51 | class View : public QAbstractScrollArea, public RowItemOwner { |
adb4b10c JH |
52 | Q_OBJECT |
53 | ||
32218d3e JH |
54 | private: |
55 | enum StickyEvents { | |
56 | SelectableItemHExtentsChanged = 1, | |
57 | SelectableItemVExtentsChanged = 2 | |
58 | }; | |
59 | ||
adb4b10c JH |
60 | private: |
61 | static const double MaxScale; | |
62 | static const double MinScale; | |
63 | ||
f25770e2 JH |
64 | static const int MaxScrollValue; |
65 | ||
361c560e JH |
66 | static const int ScaleUnits[3]; |
67 | ||
1d8dca91 | 68 | public: |
f76af637 JH |
69 | static const QColor CursorAreaColour; |
70 | ||
2e04f9bd JH |
71 | static const QSizeF LabelPadding; |
72 | ||
adb4b10c | 73 | public: |
2b81ae46 | 74 | explicit View(Session &session, QWidget *parent = 0); |
adb4b10c | 75 | |
2b81ae46 JH |
76 | Session& session(); |
77 | const Session& session() const; | |
1d19ef83 | 78 | |
eae6e30a JH |
79 | /** |
80 | * Returns the view of the owner. | |
81 | */ | |
82 | virtual pv::view::View* view(); | |
83 | ||
84 | /** | |
85 | * Returns the view of the owner. | |
86 | */ | |
87 | virtual const pv::view::View* view() const; | |
88 | ||
2ae445ba SA |
89 | Viewport* viewport(); |
90 | ||
91 | const Viewport* viewport() const; | |
92 | ||
e2f5223b JH |
93 | /** |
94 | * Returns the view time scale in seconds per pixel. | |
95 | */ | |
adb4b10c | 96 | double scale() const; |
e2f5223b JH |
97 | |
98 | /** | |
99 | * Returns the time offset of the left edge of the view in | |
100 | * seconds. | |
101 | */ | |
adb4b10c | 102 | double offset() const; |
7ff0145f | 103 | int owner_visual_v_offset() const; |
adb4b10c | 104 | |
361c560e JH |
105 | /** |
106 | * Returns the SI prefix to apply to the graticule time markings. | |
107 | */ | |
108 | unsigned int tick_prefix() const; | |
109 | ||
110 | /** | |
111 | * Returns period of the graticule time markings. | |
112 | */ | |
113 | double tick_period() const; | |
114 | ||
3e769a37 JH |
115 | /** |
116 | * Returns the number of nested parents that this row item owner has. | |
117 | */ | |
118 | unsigned int depth() const; | |
119 | ||
adb4b10c | 120 | void zoom(double steps); |
17c0f398 | 121 | void zoom(double steps, int offset); |
adb4b10c | 122 | |
ca46b534 JH |
123 | void zoom_fit(); |
124 | ||
d1e7d82c JH |
125 | void zoom_one_to_one(); |
126 | ||
e2f5223b JH |
127 | /** |
128 | * Sets the scale and offset. | |
129 | * @param scale The new view scale in seconds per pixel. | |
130 | * @param offset The view time offset in seconds. | |
131 | */ | |
adb4b10c JH |
132 | void set_scale_offset(double scale, double offset); |
133 | ||
f9abf97e | 134 | std::set< std::shared_ptr<pv::data::SignalData> > |
1bc6525b JH |
135 | get_visible_data() const; |
136 | ||
137 | std::pair<double, double> get_time_extents() const; | |
138 | ||
f76af637 JH |
139 | /** |
140 | * Returns true if cursors are displayed. false otherwise. | |
141 | */ | |
142 | bool cursors_shown() const; | |
143 | ||
144 | /** | |
145 | * Shows or hides the cursors. | |
146 | */ | |
147 | void show_cursors(bool show = true); | |
148 | ||
b4d91e56 JH |
149 | /** |
150 | * Moves the cursors to a convenient position in the view. | |
151 | */ | |
152 | void centre_cursors(); | |
153 | ||
f76af637 JH |
154 | /** |
155 | * Returns a reference to the pair of cursors. | |
156 | */ | |
b42d25c4 | 157 | CursorPair& cursors(); |
f76af637 | 158 | |
58864c5c JH |
159 | /** |
160 | * Returns a reference to the pair of cursors. | |
161 | */ | |
162 | const CursorPair& cursors() const; | |
163 | ||
cbd80f64 JH |
164 | const QPoint& hover_point() const; |
165 | ||
9cef9567 | 166 | void update_viewport(); |
7ff0145f JH |
167 | |
168 | void restack_all_row_items(); | |
9cef9567 | 169 | |
e9213170 | 170 | Q_SIGNALS: |
cbd80f64 JH |
171 | void hover_point_changed(); |
172 | ||
07204819 JH |
173 | void signals_moved(); |
174 | ||
8b454527 JH |
175 | void selection_changed(); |
176 | ||
e0fc5810 JH |
177 | void scale_offset_changed(); |
178 | ||
adb4b10c | 179 | private: |
f25770e2 | 180 | void get_scroll_layout(double &length, double &offset) const; |
3925091a JH |
181 | |
182 | /** | |
183 | * Simultaneously sets the zoom and offset. | |
184 | * @param scale The scale to set the view to in seconds per pixel. This | |
185 | * value is clamped between MinScale and MaxScale. | |
186 | * @param offset The offset of the left edge of the view in seconds. | |
187 | */ | |
d1e7d82c JH |
188 | void set_zoom(double scale, int offset); |
189 | ||
361c560e JH |
190 | /** |
191 | * Find a tick spacing and number formatting that does not cause | |
192 | * the values to collide. | |
193 | */ | |
194 | void calculate_tick_spacing(); | |
195 | ||
adb4b10c JH |
196 | void update_scroll(); |
197 | ||
d7c0ca4a JH |
198 | void update_layout(); |
199 | ||
eae6e30a JH |
200 | /** |
201 | * Satisifies RowItem functionality. | |
202 | * @param p the QPainter to paint into. | |
203 | * @param right the x-coordinate of the right edge of the header | |
204 | * area. | |
205 | * @param hover true if the label is being hovered over by the mouse. | |
206 | */ | |
207 | void paint_label(QPainter &p, int right, bool hover); | |
208 | ||
209 | /** | |
210 | * Computes the outline rectangle of a label. | |
211 | * @param right the x-coordinate of the right edge of the header | |
212 | * area. | |
213 | * @return Returns the rectangle of the signal label. | |
214 | */ | |
215 | QRectF label_rect(int right); | |
216 | ||
448a72cf JH |
217 | static bool add_channels_to_owner( |
218 | const std::vector< std::shared_ptr<sigrok::Channel> > &channels, | |
219 | RowItemOwner *owner, int &offset, | |
220 | std::unordered_map<std::shared_ptr<sigrok::Channel>, | |
221 | std::shared_ptr<Signal> > &signal_map, | |
222 | std::function<bool (std::shared_ptr<RowItem>)> filter_func = | |
223 | std::function<bool (std::shared_ptr<RowItem>)>()); | |
224 | ||
225 | static void apply_offset( | |
226 | std::shared_ptr<RowItem> row_item, int &offset); | |
227 | ||
adb4b10c | 228 | private: |
cbd80f64 JH |
229 | bool eventFilter(QObject *object, QEvent *event); |
230 | ||
adb4b10c JH |
231 | bool viewportEvent(QEvent *e); |
232 | ||
233 | void resizeEvent(QResizeEvent *e); | |
234 | ||
32218d3e JH |
235 | public: |
236 | void appearance_changed(bool label, bool content); | |
237 | ||
238 | void extents_changed(bool horz, bool vert); | |
239 | ||
e9213170 | 240 | private Q_SLOTS: |
cbd80f64 | 241 | |
b16907d3 | 242 | void h_scroll_value_changed(int value); |
adb4b10c JH |
243 | void v_scroll_value_changed(int value); |
244 | ||
69dd2b03 | 245 | void signals_changed(); |
adb4b10c JH |
246 | void data_updated(); |
247 | ||
ca4ec3ea JH |
248 | void marker_time_changed(); |
249 | ||
07204819 | 250 | void on_signals_moved(); |
54401bbb | 251 | |
32218d3e | 252 | void process_sticky_events(); |
d7c0ca4a | 253 | |
33c62f44 JH |
254 | void on_hover_point_changed(); |
255 | ||
adb4b10c | 256 | private: |
2b81ae46 | 257 | Session &session_; |
adb4b10c | 258 | |
8dbbc7f0 JH |
259 | Viewport *viewport_; |
260 | Ruler *ruler_; | |
261 | CursorHeader *cursorheader_; | |
262 | Header *header_; | |
adb4b10c | 263 | |
e2f5223b | 264 | /// The view time scale in seconds per pixel. |
8dbbc7f0 | 265 | double scale_; |
e2f5223b JH |
266 | |
267 | /// The view time offset in seconds. | |
8dbbc7f0 | 268 | double offset_; |
adb4b10c | 269 | |
8dbbc7f0 JH |
270 | int v_offset_; |
271 | bool updating_scroll_; | |
cbd80f64 | 272 | |
361c560e JH |
273 | double tick_period_; |
274 | unsigned int tick_prefix_; | |
275 | ||
8dbbc7f0 JH |
276 | bool show_cursors_; |
277 | CursorPair cursors_; | |
f76af637 | 278 | |
8dbbc7f0 | 279 | QPoint hover_point_; |
32218d3e | 280 | |
8dbbc7f0 JH |
281 | unsigned int sticky_events_; |
282 | QTimer lazy_event_handler_; | |
adb4b10c JH |
283 | }; |
284 | ||
cdf7bea7 JH |
285 | } // namespace view |
286 | } // namespace pv | |
287 | ||
640d091b | 288 | #endif // PULSEVIEW_PV_VIEW_VIEW_H |