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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net> | |
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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_GLOBALSETTINGS_HPP | |
21 | #define PULSEVIEW_GLOBALSETTINGS_HPP | |
22 | ||
23 | #include <functional> | |
24 | #include <map> | |
25 | ||
26 | #include <glib.h> | |
27 | ||
28 | #include <QSettings> | |
29 | #include <QString> | |
30 | #include <QVariant> | |
31 | ||
32 | using std::function; | |
33 | using std::map; | |
34 | using std::multimap; | |
35 | ||
36 | namespace pv { | |
37 | ||
38 | class GlobalSettings : public QSettings | |
39 | { | |
40 | Q_OBJECT | |
41 | ||
42 | public: | |
43 | static const QString Key_View_ZoomToFitDuringAcq; | |
44 | static const QString Key_View_ZoomToFitAfterAcq; | |
45 | static const QString Key_View_ColouredBG; | |
46 | static const QString Key_View_StickyScrolling; | |
47 | static const QString Key_View_ShowSamplingPoints; | |
48 | static const QString Key_View_ShowAnalogMinorGrid; | |
49 | static const QString Key_View_DefaultDivHeight; | |
50 | static const QString Key_View_DefaultLogicHeight; | |
51 | static const QString Key_Dec_InitialStateConfigurable; | |
52 | ||
53 | public: | |
54 | GlobalSettings(); | |
55 | ||
56 | void set_defaults_where_needed(); | |
57 | ||
58 | static void register_change_handler(const QString key, | |
59 | function<void(QVariant)> cb); | |
60 | ||
61 | void setValue(const QString& key, const QVariant& value); | |
62 | ||
63 | /** | |
64 | * Begins the tracking of changes. All changes will | |
65 | * be recorded until stop_tracking() is called. | |
66 | * The change tracking is global and doesn't support nesting. | |
67 | */ | |
68 | void start_tracking(); | |
69 | ||
70 | /** | |
71 | * Ends the tracking of changes without any changes to the settings. | |
72 | */ | |
73 | void stop_tracking(); | |
74 | ||
75 | /** | |
76 | * Ends the tracking of changes, undoing the changes since the | |
77 | * change tracking began. | |
78 | */ | |
79 | void undo_tracked_changes(); | |
80 | ||
81 | static void store_gvariant(QSettings &settings, GVariant *v); | |
82 | ||
83 | static GVariant* restore_gvariant(QSettings &settings); | |
84 | ||
85 | private: | |
86 | static multimap< QString, function<void(QVariant)> > callbacks_; | |
87 | ||
88 | static bool tracking_; | |
89 | static map<QString, QVariant> tracked_changes_; | |
90 | }; | |
91 | ||
92 | } // namespace pv | |
93 | ||
94 | #endif // PULSEVIEW_GLOBALSETTINGS_HPP |