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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_PV_GLOBALSETTINGS_HPP
21#define PULSEVIEW_PV_GLOBALSETTINGS_HPP
22
23#include <map>
24
25#include <glib.h>
26#include <glibmm/variant.h>
27
28#include <QPalette>
29#include <QSettings>
30#include <QString>
31#include <QVariant>
32
33#include "util.hpp"
34
35using std::map;
36using std::pair;
37using std::vector;
38
39namespace pv {
40
41extern const vector< pair<QString, QString> > Themes;
42
43
44class GlobalSettingsInterface
45{
46public:
47 virtual void on_setting_changed(const QString &key, const QVariant &value) = 0;
48};
49
50
51class GlobalSettings : public QSettings
52{
53 Q_OBJECT
54
55public:
56 static const QString Key_General_Language;
57 static const QString Key_General_Theme;
58 static const QString Key_General_Style;
59 static const QString Key_General_SaveWithSetup;
60 static const QString Key_General_StartAllSessions;
61 static const QString Key_View_ZoomToFitDuringAcq;
62 static const QString Key_View_ZoomToFitAfterAcq;
63 static const QString Key_View_TriggerIsZeroTime;
64 static const QString Key_View_ColoredBG;
65 static const QString Key_View_StickyScrolling;
66 static const QString Key_View_AllowVerticalDragging;
67 static const QString Key_View_ShowSamplingPoints;
68 static const QString Key_View_FillSignalHighAreas;
69 static const QString Key_View_FillSignalHighAreaColor;
70 static const QString Key_View_ShowAnalogMinorGrid;
71 static const QString Key_View_ConversionThresholdDispMode;
72 static const QString Key_View_DefaultDivHeight;
73 static const QString Key_View_DefaultLogicHeight;
74 static const QString Key_View_ShowHoverMarker;
75 static const QString Key_View_KeepRulerItemSelected;
76 static const QString Key_View_SnapDistance;
77 static const QString Key_View_CursorFillColor;
78 static const QString Key_View_CursorShowInterval;
79 static const QString Key_View_CursorShowFrequency;
80 static const QString Key_View_CursorShowSamples;
81 static const QString Key_Dec_InitialStateConfigurable;
82 static const QString Key_Dec_ExportFormat;
83 static const QString Key_Dec_AlwaysShowAllRows;
84 static const QString Key_Log_BufferSize;
85 static const QString Key_Log_NotifyOfStacktrace;
86
87 enum ConvThrDispMode {
88 ConvThrDispMode_None = 0,
89 ConvThrDispMode_Background,
90 ConvThrDispMode_Dots
91 };
92
93public:
94 GlobalSettings();
95
96 void save_internal_defaults();
97 void set_defaults_where_needed();
98 void set_bright_theme_default_colors();
99 void set_dark_theme_default_colors();
100
101 static bool current_theme_is_dark();
102 void apply_theme();
103
104 void apply_language();
105
106 static void add_change_handler(GlobalSettingsInterface *cb);
107 static void remove_change_handler(GlobalSettingsInterface *cb);
108
109 void setValue(const QString& key, const QVariant& value);
110
111 /**
112 * Begins the tracking of changes. All changes will
113 * be recorded until stop_tracking() is called.
114 * The change tracking is global and doesn't support nesting.
115 */
116 void start_tracking();
117
118 /**
119 * Ends the tracking of changes without any changes to the settings.
120 */
121 void stop_tracking();
122
123 /**
124 * Ends the tracking of changes, undoing the changes since the
125 * change tracking began.
126 */
127 void undo_tracked_changes();
128
129 static void store_gvariant(QSettings &settings, GVariant *v);
130 static GVariant* restore_gvariant(QSettings &settings);
131
132 static void store_variantbase(QSettings &settings, Glib::VariantBase v);
133 static Glib::VariantBase restore_variantbase(QSettings &settings);
134
135 static void store_timestamp(QSettings &settings, const char *name, const pv::util::Timestamp &ts);
136 static pv::util::Timestamp restore_timestamp(QSettings &settings, const char *name);
137
138private:
139 static vector<GlobalSettingsInterface*> callbacks_;
140
141 static bool tracking_;
142 static map<QString, QVariant> tracked_changes_;
143
144 static QString default_style_;
145 static QPalette default_palette_;
146
147 static bool is_dark_theme_;
148};
149
150} // namespace pv
151
152#endif // PULSEVIEW_PV_GLOBALSETTINGS_HPP