2 * This file is part of the PulseView project.
4 * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net>
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.
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.
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/>.
20 #include "globalsettings.hpp"
31 const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq";
32 const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq";
33 const QString GlobalSettings::Key_View_ColouredBG = "View_ColouredBG";
34 const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling";
35 const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints";
36 const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid";
37 const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable";
39 multimap< QString, function<void(QVariant)> > GlobalSettings::callbacks_;
40 bool GlobalSettings::tracking_ = false;
41 map<QString, QVariant> GlobalSettings::tracked_changes_;
43 GlobalSettings::GlobalSettings() :
46 beginGroup("Settings");
49 void GlobalSettings::set_defaults_where_needed()
51 // Enable zoom-to-fit after acquisition by default
52 if (!contains(Key_View_ZoomToFitAfterAcq))
53 setValue(Key_View_ZoomToFitAfterAcq, true);
55 // Enable coloured trace backgrounds by default
56 if (!contains(Key_View_ColouredBG))
57 setValue(Key_View_ColouredBG, true);
59 // Enable showing sampling points by default
60 if (!contains(Key_View_ShowSamplingPoints))
61 setValue(Key_View_ShowSamplingPoints, true);
64 void GlobalSettings::register_change_handler(const QString key,
65 function<void(QVariant)> cb)
67 callbacks_.emplace(key, cb);
70 void GlobalSettings::setValue(const QString &key, const QVariant &value)
72 // Save previous value if we're tracking changes,
73 // not altering an already-existing saved setting
75 tracked_changes_.emplace(key, QSettings::value(key));
77 QSettings::setValue(key, value);
79 // Call all registered callbacks for this key
80 auto range = callbacks_.equal_range(key);
82 for (auto it = range.first; it != range.second; it++)
86 void GlobalSettings::start_tracking()
89 tracked_changes_.clear();
92 void GlobalSettings::stop_tracking()
95 tracked_changes_.clear();
98 void GlobalSettings::undo_tracked_changes()
102 for (auto entry : tracked_changes_)
103 setValue(entry.first, entry.second);
105 tracked_changes_.clear();
108 void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v)
110 const GVariantType *var_type = g_variant_get_type(v);
111 char *var_type_str = g_variant_type_dup_string(var_type);
113 QByteArray var_data = QByteArray((const char*)g_variant_get_data(v),
114 g_variant_get_size(v));
116 settings.setValue("value", var_data);
117 settings.setValue("type", var_type_str);
119 g_free(var_type_str);
122 GVariant* GlobalSettings::restore_gvariant(QSettings &settings)
124 QString raw_type = settings.value("type").toString();
125 GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
127 QByteArray data = settings.value("value").toByteArray();
129 gpointer var_data = g_memdup((gconstpointer)data.constData(),
132 GVariant *value = g_variant_new_from_data(var_type, var_data,
133 data.size(), false, g_free, var_data);
135 g_variant_type_free(var_type);