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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 | ||
38eeddea JH |
26 | #include <vector> |
27 | ||
28 | #include <boost/shared_ptr.hpp> | |
94936133 JH |
29 | #include <boost/weak_ptr.hpp> |
30 | ||
adb4b10c | 31 | #include <QAbstractScrollArea> |
2e04f9bd | 32 | #include <QSizeF> |
adb4b10c | 33 | |
b42d25c4 | 34 | #include "cursorpair.h" |
f76af637 | 35 | |
51e77110 JH |
36 | namespace pv { |
37 | ||
adb4b10c | 38 | class SigSession; |
adb4b10c | 39 | |
cdf7bea7 JH |
40 | namespace view { |
41 | ||
1d8dca91 | 42 | class Header; |
ccdd3ef5 | 43 | class Ruler; |
38eeddea | 44 | class Trace; |
cdf7bea7 JH |
45 | class Viewport; |
46 | ||
47 | class View : public QAbstractScrollArea { | |
adb4b10c JH |
48 | Q_OBJECT |
49 | ||
50 | private: | |
51 | static const double MaxScale; | |
52 | static const double MinScale; | |
53 | ||
54 | static const int LabelMarginWidth; | |
55 | static const int RulerHeight; | |
56 | ||
f25770e2 JH |
57 | static const int MaxScrollValue; |
58 | ||
1d8dca91 JH |
59 | public: |
60 | static const int SignalHeight; | |
8d44d030 | 61 | static const int SignalMargin; |
49153683 | 62 | static const int SignalSnapGridSize; |
1d8dca91 | 63 | |
f76af637 JH |
64 | static const QColor CursorAreaColour; |
65 | ||
2e04f9bd JH |
66 | static const QSizeF LabelPadding; |
67 | ||
adb4b10c | 68 | public: |
cdf7bea7 | 69 | explicit View(SigSession &session, QWidget *parent = 0); |
adb4b10c | 70 | |
1d19ef83 | 71 | SigSession& session(); |
38eeddea | 72 | const SigSession& session() const; |
1d19ef83 | 73 | |
e2f5223b JH |
74 | /** |
75 | * Returns the view time scale in seconds per pixel. | |
76 | */ | |
adb4b10c | 77 | double scale() const; |
e2f5223b JH |
78 | |
79 | /** | |
80 | * Returns the time offset of the left edge of the view in | |
81 | * seconds. | |
82 | */ | |
adb4b10c JH |
83 | double offset() const; |
84 | int v_offset() const; | |
85 | ||
86 | void zoom(double steps); | |
17c0f398 | 87 | void zoom(double steps, int offset); |
adb4b10c | 88 | |
ca46b534 JH |
89 | void zoom_fit(); |
90 | ||
e2f5223b JH |
91 | /** |
92 | * Sets the scale and offset. | |
93 | * @param scale The new view scale in seconds per pixel. | |
94 | * @param offset The view time offset in seconds. | |
95 | */ | |
adb4b10c JH |
96 | void set_scale_offset(double scale, double offset); |
97 | ||
38eeddea JH |
98 | std::vector< boost::shared_ptr<Trace> > get_traces() const; |
99 | ||
94936133 JH |
100 | std::list<boost::weak_ptr<SelectableItem> > selected_items() const; |
101 | ||
f76af637 JH |
102 | /** |
103 | * Returns true if cursors are displayed. false otherwise. | |
104 | */ | |
105 | bool cursors_shown() const; | |
106 | ||
107 | /** | |
108 | * Shows or hides the cursors. | |
109 | */ | |
110 | void show_cursors(bool show = true); | |
111 | ||
b4d91e56 JH |
112 | /** |
113 | * Moves the cursors to a convenient position in the view. | |
114 | */ | |
115 | void centre_cursors(); | |
116 | ||
f76af637 JH |
117 | /** |
118 | * Returns a reference to the pair of cursors. | |
119 | */ | |
b42d25c4 | 120 | CursorPair& cursors(); |
f76af637 | 121 | |
58864c5c JH |
122 | /** |
123 | * Returns a reference to the pair of cursors. | |
124 | */ | |
125 | const CursorPair& cursors() const; | |
126 | ||
cbd80f64 JH |
127 | const QPoint& hover_point() const; |
128 | ||
4b192962 JH |
129 | void normalize_layout(); |
130 | ||
9cef9567 JH |
131 | void update_viewport(); |
132 | ||
cbd80f64 JH |
133 | signals: |
134 | void hover_point_changed(); | |
135 | ||
07204819 JH |
136 | void signals_moved(); |
137 | ||
8b454527 JH |
138 | void selection_changed(); |
139 | ||
e0fc5810 JH |
140 | void scale_offset_changed(); |
141 | ||
adb4b10c | 142 | private: |
f25770e2 JH |
143 | void get_scroll_layout(double &length, double &offset) const; |
144 | ||
adb4b10c JH |
145 | void update_scroll(); |
146 | ||
38eeddea JH |
147 | static bool compare_trace_v_offsets( |
148 | const boost::shared_ptr<pv::view::Trace> &a, | |
149 | const boost::shared_ptr<pv::view::Trace> &b); | |
150 | ||
adb4b10c | 151 | private: |
cbd80f64 JH |
152 | bool eventFilter(QObject *object, QEvent *event); |
153 | ||
adb4b10c JH |
154 | bool viewportEvent(QEvent *e); |
155 | ||
156 | void resizeEvent(QResizeEvent *e); | |
157 | ||
158 | private slots: | |
cbd80f64 | 159 | |
b16907d3 | 160 | void h_scroll_value_changed(int value); |
adb4b10c JH |
161 | void v_scroll_value_changed(int value); |
162 | ||
69dd2b03 | 163 | void signals_changed(); |
adb4b10c JH |
164 | void data_updated(); |
165 | ||
ca4ec3ea JH |
166 | void marker_time_changed(); |
167 | ||
07204819 | 168 | void on_signals_moved(); |
54401bbb | 169 | |
adb4b10c JH |
170 | private: |
171 | SigSession &_session; | |
172 | ||
cdf7bea7 | 173 | Viewport *_viewport; |
ccdd3ef5 | 174 | Ruler *_ruler; |
1d8dca91 | 175 | Header *_header; |
adb4b10c JH |
176 | |
177 | uint64_t _data_length; | |
178 | ||
e2f5223b | 179 | /// The view time scale in seconds per pixel. |
adb4b10c | 180 | double _scale; |
e2f5223b JH |
181 | |
182 | /// The view time offset in seconds. | |
adb4b10c JH |
183 | double _offset; |
184 | ||
185 | int _v_offset; | |
528bd8a1 | 186 | bool _updating_scroll; |
cbd80f64 | 187 | |
f76af637 | 188 | bool _show_cursors; |
b42d25c4 | 189 | CursorPair _cursors; |
f76af637 | 190 | |
cbd80f64 | 191 | QPoint _hover_point; |
adb4b10c JH |
192 | }; |
193 | ||
cdf7bea7 JH |
194 | } // namespace view |
195 | } // namespace pv | |
196 | ||
640d091b | 197 | #endif // PULSEVIEW_PV_VIEW_VIEW_H |