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adb4b10c JH |
1 | /* |
2 | * This file is part of the sigrok project. | |
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 | ||
cdf7bea7 JH |
21 | #ifndef PV_VIEW_VIEW_H |
22 | #define PV_VIEW_VIEW_H | |
adb4b10c JH |
23 | |
24 | #include <stdint.h> | |
25 | ||
26 | #include <QAbstractScrollArea> | |
27 | ||
28 | class SigSession; | |
adb4b10c | 29 | |
cdf7bea7 JH |
30 | namespace pv { |
31 | namespace view { | |
32 | ||
33 | class Viewport; | |
34 | ||
35 | class View : public QAbstractScrollArea { | |
adb4b10c JH |
36 | Q_OBJECT |
37 | ||
38 | private: | |
39 | static const double MaxScale; | |
40 | static const double MinScale; | |
41 | ||
42 | static const int LabelMarginWidth; | |
43 | static const int RulerHeight; | |
44 | ||
45 | public: | |
cdf7bea7 | 46 | explicit View(SigSession &session, QWidget *parent = 0); |
adb4b10c JH |
47 | |
48 | double scale() const; | |
49 | double offset() const; | |
50 | int v_offset() const; | |
51 | ||
52 | void zoom(double steps); | |
53 | ||
54 | void set_scale_offset(double scale, double offset); | |
55 | ||
56 | private: | |
57 | void update_scroll(); | |
58 | ||
59 | void zoom(double steps, int offset); | |
60 | ||
61 | private: | |
62 | bool viewportEvent(QEvent *e); | |
63 | ||
64 | void resizeEvent(QResizeEvent *e); | |
65 | ||
66 | private slots: | |
67 | void h_scroll_value_changed(int value); | |
68 | void v_scroll_value_changed(int value); | |
69 | ||
70 | void data_updated(); | |
71 | ||
72 | private: | |
73 | SigSession &_session; | |
74 | ||
cdf7bea7 | 75 | Viewport *_viewport; |
adb4b10c JH |
76 | |
77 | uint64_t _data_length; | |
78 | ||
79 | double _scale; | |
80 | double _offset; | |
81 | ||
82 | int _v_offset; | |
83 | ||
cdf7bea7 | 84 | friend class Viewport; |
adb4b10c JH |
85 | }; |
86 | ||
cdf7bea7 JH |
87 | } // namespace view |
88 | } // namespace pv | |
89 | ||
90 | #endif // PV_VIEW_VIEW_H |