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Commit | Line | Data |
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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> |
38eeddea JH |
28 | #include <vector> |
29 | ||
adb4b10c | 30 | #include <QAbstractScrollArea> |
2e04f9bd | 31 | #include <QSizeF> |
32218d3e | 32 | #include <QTimer> |
adb4b10c | 33 | |
1bc6525b JH |
34 | #include <pv/data/signaldata.h> |
35 | ||
b42d25c4 | 36 | #include "cursorpair.h" |
eae6e30a | 37 | #include "rowitemowner.h" |
f76af637 | 38 | |
51e77110 JH |
39 | namespace pv { |
40 | ||
adb4b10c | 41 | class SigSession; |
adb4b10c | 42 | |
cdf7bea7 JH |
43 | namespace view { |
44 | ||
84a0d458 | 45 | class CursorHeader; |
1d8dca91 | 46 | class Header; |
ccdd3ef5 | 47 | class Ruler; |
cdf7bea7 JH |
48 | class Viewport; |
49 | ||
eae6e30a | 50 | class View : public QAbstractScrollArea, public RowItemOwner { |
adb4b10c JH |
51 | Q_OBJECT |
52 | ||
32218d3e JH |
53 | private: |
54 | enum StickyEvents { | |
55 | SelectableItemHExtentsChanged = 1, | |
56 | SelectableItemVExtentsChanged = 2 | |
57 | }; | |
58 | ||
adb4b10c JH |
59 | private: |
60 | static const double MaxScale; | |
61 | static const double MinScale; | |
62 | ||
f25770e2 JH |
63 | static const int MaxScrollValue; |
64 | ||
1d8dca91 | 65 | public: |
f76af637 JH |
66 | static const QColor CursorAreaColour; |
67 | ||
2e04f9bd JH |
68 | static const QSizeF LabelPadding; |
69 | ||
adb4b10c | 70 | public: |
cdf7bea7 | 71 | explicit View(SigSession &session, QWidget *parent = 0); |
adb4b10c | 72 | |
1d19ef83 | 73 | SigSession& session(); |
38eeddea | 74 | const SigSession& 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 | ||
e2f5223b JH |
90 | /** |
91 | * Returns the view time scale in seconds per pixel. | |
92 | */ | |
adb4b10c | 93 | double scale() const; |
e2f5223b JH |
94 | |
95 | /** | |
96 | * Returns the time offset of the left edge of the view in | |
97 | * seconds. | |
98 | */ | |
adb4b10c | 99 | double offset() const; |
eae6e30a | 100 | int owner_v_offset() const; |
adb4b10c JH |
101 | |
102 | void zoom(double steps); | |
17c0f398 | 103 | void zoom(double steps, int offset); |
adb4b10c | 104 | |
ca46b534 JH |
105 | void zoom_fit(); |
106 | ||
d1e7d82c JH |
107 | void zoom_one_to_one(); |
108 | ||
e2f5223b JH |
109 | /** |
110 | * Sets the scale and offset. | |
111 | * @param scale The new view scale in seconds per pixel. | |
112 | * @param offset The view time offset in seconds. | |
113 | */ | |
adb4b10c JH |
114 | void set_scale_offset(double scale, double offset); |
115 | ||
f9abf97e | 116 | std::set< std::shared_ptr<pv::data::SignalData> > |
1bc6525b JH |
117 | get_visible_data() const; |
118 | ||
119 | std::pair<double, double> get_time_extents() const; | |
120 | ||
f76af637 JH |
121 | /** |
122 | * Returns true if cursors are displayed. false otherwise. | |
123 | */ | |
124 | bool cursors_shown() const; | |
125 | ||
126 | /** | |
127 | * Shows or hides the cursors. | |
128 | */ | |
129 | void show_cursors(bool show = true); | |
130 | ||
b4d91e56 JH |
131 | /** |
132 | * Moves the cursors to a convenient position in the view. | |
133 | */ | |
134 | void centre_cursors(); | |
135 | ||
f76af637 JH |
136 | /** |
137 | * Returns a reference to the pair of cursors. | |
138 | */ | |
b42d25c4 | 139 | CursorPair& cursors(); |
f76af637 | 140 | |
58864c5c JH |
141 | /** |
142 | * Returns a reference to the pair of cursors. | |
143 | */ | |
144 | const CursorPair& cursors() const; | |
145 | ||
cbd80f64 JH |
146 | const QPoint& hover_point() const; |
147 | ||
9cef9567 JH |
148 | void update_viewport(); |
149 | ||
e9213170 | 150 | Q_SIGNALS: |
cbd80f64 JH |
151 | void hover_point_changed(); |
152 | ||
07204819 JH |
153 | void signals_moved(); |
154 | ||
8b454527 JH |
155 | void selection_changed(); |
156 | ||
e0fc5810 JH |
157 | void scale_offset_changed(); |
158 | ||
adb4b10c | 159 | private: |
f25770e2 | 160 | void get_scroll_layout(double &length, double &offset) const; |
3925091a JH |
161 | |
162 | /** | |
163 | * Simultaneously sets the zoom and offset. | |
164 | * @param scale The scale to set the view to in seconds per pixel. This | |
165 | * value is clamped between MinScale and MaxScale. | |
166 | * @param offset The offset of the left edge of the view in seconds. | |
167 | */ | |
d1e7d82c JH |
168 | void set_zoom(double scale, int offset); |
169 | ||
adb4b10c JH |
170 | void update_scroll(); |
171 | ||
d7c0ca4a JH |
172 | void update_layout(); |
173 | ||
eae6e30a JH |
174 | /** |
175 | * Satisifies RowItem functionality. | |
176 | * @param p the QPainter to paint into. | |
177 | * @param right the x-coordinate of the right edge of the header | |
178 | * area. | |
179 | * @param hover true if the label is being hovered over by the mouse. | |
180 | */ | |
181 | void paint_label(QPainter &p, int right, bool hover); | |
182 | ||
183 | /** | |
184 | * Computes the outline rectangle of a label. | |
185 | * @param right the x-coordinate of the right edge of the header | |
186 | * area. | |
187 | * @return Returns the rectangle of the signal label. | |
188 | */ | |
189 | QRectF label_rect(int right); | |
190 | ||
adb4b10c | 191 | private: |
cbd80f64 JH |
192 | bool eventFilter(QObject *object, QEvent *event); |
193 | ||
adb4b10c JH |
194 | bool viewportEvent(QEvent *e); |
195 | ||
196 | void resizeEvent(QResizeEvent *e); | |
197 | ||
32218d3e JH |
198 | public: |
199 | void appearance_changed(bool label, bool content); | |
200 | ||
201 | void extents_changed(bool horz, bool vert); | |
202 | ||
e9213170 | 203 | private Q_SLOTS: |
cbd80f64 | 204 | |
b16907d3 | 205 | void h_scroll_value_changed(int value); |
adb4b10c JH |
206 | void v_scroll_value_changed(int value); |
207 | ||
69dd2b03 | 208 | void signals_changed(); |
adb4b10c JH |
209 | void data_updated(); |
210 | ||
ca4ec3ea JH |
211 | void marker_time_changed(); |
212 | ||
07204819 | 213 | void on_signals_moved(); |
54401bbb | 214 | |
32218d3e | 215 | void process_sticky_events(); |
d7c0ca4a | 216 | |
33c62f44 JH |
217 | void on_hover_point_changed(); |
218 | ||
adb4b10c JH |
219 | private: |
220 | SigSession &_session; | |
221 | ||
cdf7bea7 | 222 | Viewport *_viewport; |
ccdd3ef5 | 223 | Ruler *_ruler; |
84a0d458 | 224 | CursorHeader *_cursorheader; |
1d8dca91 | 225 | Header *_header; |
adb4b10c | 226 | |
e2f5223b | 227 | /// The view time scale in seconds per pixel. |
adb4b10c | 228 | double _scale; |
e2f5223b JH |
229 | |
230 | /// The view time offset in seconds. | |
adb4b10c JH |
231 | double _offset; |
232 | ||
233 | int _v_offset; | |
528bd8a1 | 234 | bool _updating_scroll; |
cbd80f64 | 235 | |
f76af637 | 236 | bool _show_cursors; |
b42d25c4 | 237 | CursorPair _cursors; |
f76af637 | 238 | |
cbd80f64 | 239 | QPoint _hover_point; |
32218d3e JH |
240 | |
241 | unsigned int _sticky_events; | |
242 | QTimer _lazy_event_handler; | |
adb4b10c JH |
243 | }; |
244 | ||
cdf7bea7 JH |
245 | } // namespace view |
246 | } // namespace pv | |
247 | ||
640d091b | 248 | #endif // PULSEVIEW_PV_VIEW_VIEW_H |