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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 | ||
1d8dca91 | 33 | class Header; |
ccdd3ef5 | 34 | class Ruler; |
cdf7bea7 JH |
35 | class Viewport; |
36 | ||
37 | class View : public QAbstractScrollArea { | |
adb4b10c JH |
38 | Q_OBJECT |
39 | ||
40 | private: | |
41 | static const double MaxScale; | |
42 | static const double MinScale; | |
43 | ||
44 | static const int LabelMarginWidth; | |
45 | static const int RulerHeight; | |
46 | ||
1d8dca91 JH |
47 | public: |
48 | static const int SignalHeight; | |
49 | ||
adb4b10c | 50 | public: |
cdf7bea7 | 51 | explicit View(SigSession &session, QWidget *parent = 0); |
adb4b10c | 52 | |
1d19ef83 JH |
53 | SigSession& session(); |
54 | ||
adb4b10c JH |
55 | double scale() const; |
56 | double offset() const; | |
57 | int v_offset() const; | |
58 | ||
59 | void zoom(double steps); | |
60 | ||
61 | void set_scale_offset(double scale, double offset); | |
62 | ||
63 | private: | |
64 | void update_scroll(); | |
65 | ||
66 | void zoom(double steps, int offset); | |
67 | ||
68 | private: | |
69 | bool viewportEvent(QEvent *e); | |
70 | ||
71 | void resizeEvent(QResizeEvent *e); | |
72 | ||
73 | private slots: | |
74 | void h_scroll_value_changed(int value); | |
75 | void v_scroll_value_changed(int value); | |
76 | ||
77 | void data_updated(); | |
78 | ||
79 | private: | |
80 | SigSession &_session; | |
81 | ||
cdf7bea7 | 82 | Viewport *_viewport; |
ccdd3ef5 | 83 | Ruler *_ruler; |
1d8dca91 | 84 | Header *_header; |
adb4b10c JH |
85 | |
86 | uint64_t _data_length; | |
87 | ||
88 | double _scale; | |
89 | double _offset; | |
90 | ||
91 | int _v_offset; | |
92 | ||
cdf7bea7 | 93 | friend class Viewport; |
adb4b10c JH |
94 | }; |
95 | ||
cdf7bea7 JH |
96 | } // namespace view |
97 | } // namespace pv | |
98 | ||
99 | #endif // PV_VIEW_VIEW_H |