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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 <map> | |
24 | ||
25 | #include <glib.h> | |
26 | ||
27 | #include <QSettings> | |
28 | #include <QString> | |
29 | #include <QVariant> | |
30 | ||
31 | using std::map; | |
32 | using std::vector; | |
33 | ||
34 | namespace pv { | |
35 | ||
36 | class GlobalSettingsInterface | |
37 | { | |
38 | public: | |
39 | virtual void on_setting_changed(const QString &key, const QVariant &value) = 0; | |
40 | }; | |
41 | ||
42 | ||
43 | class GlobalSettings : public QSettings | |
44 | { | |
45 | Q_OBJECT | |
46 | ||
47 | public: | |
48 | static const QString Key_View_ZoomToFitDuringAcq; | |
49 | static const QString Key_View_ZoomToFitAfterAcq; | |
50 | static const QString Key_View_TriggerIsZeroTime; | |
51 | static const QString Key_View_ColouredBG; | |
52 | static const QString Key_View_StickyScrolling; | |
53 | static const QString Key_View_ShowSamplingPoints; | |
54 | static const QString Key_View_ShowAnalogMinorGrid; | |
55 | static const QString Key_View_ConversionThresholdDispMode; | |
56 | static const QString Key_View_DefaultDivHeight; | |
57 | static const QString Key_View_DefaultLogicHeight; | |
58 | static const QString Key_Dec_InitialStateConfigurable; | |
59 | static const QString Key_Log_BufferSize; | |
60 | static const QString Key_Log_NotifyOfStacktrace; | |
61 | ||
62 | enum ConvThrDispMode { | |
63 | ConvThrDispMode_None = 0, | |
64 | ConvThrDispMode_Background, | |
65 | ConvThrDispMode_Dots | |
66 | }; | |
67 | ||
68 | public: | |
69 | GlobalSettings(); | |
70 | ||
71 | void set_defaults_where_needed(); | |
72 | ||
73 | static void add_change_handler(GlobalSettingsInterface *cb); | |
74 | static void remove_change_handler(GlobalSettingsInterface *cb); | |
75 | ||
76 | void setValue(const QString& key, const QVariant& value); | |
77 | ||
78 | /** | |
79 | * Begins the tracking of changes. All changes will | |
80 | * be recorded until stop_tracking() is called. | |
81 | * The change tracking is global and doesn't support nesting. | |
82 | */ | |
83 | void start_tracking(); | |
84 | ||
85 | /** | |
86 | * Ends the tracking of changes without any changes to the settings. | |
87 | */ | |
88 | void stop_tracking(); | |
89 | ||
90 | /** | |
91 | * Ends the tracking of changes, undoing the changes since the | |
92 | * change tracking began. | |
93 | */ | |
94 | void undo_tracked_changes(); | |
95 | ||
96 | static void store_gvariant(QSettings &settings, GVariant *v); | |
97 | ||
98 | static GVariant* restore_gvariant(QSettings &settings); | |
99 | ||
100 | private: | |
101 | static vector<GlobalSettingsInterface*> callbacks_; | |
102 | ||
103 | static bool tracking_; | |
104 | static map<QString, QVariant> tracked_changes_; | |
105 | }; | |
106 | ||
107 | } // namespace pv | |
108 | ||
109 | #endif // PULSEVIEW_GLOBALSETTINGS_HPP |