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"
22 #include <QApplication>
24 #include <QFontMetrics>
33 const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq";
34 const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq";
35 const QString GlobalSettings::Key_View_TriggerIsZeroTime = "View_TriggerIsZeroTime";
36 const QString GlobalSettings::Key_View_ColoredBG = "View_ColoredBG";
37 const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling";
38 const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints";
39 const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid";
40 const QString GlobalSettings::Key_View_ConversionThresholdDispMode = "View_ConversionThresholdDispMode";
41 const QString GlobalSettings::Key_View_DefaultDivHeight = "View_DefaultDivHeight";
42 const QString GlobalSettings::Key_View_DefaultLogicHeight = "View_DefaultLogicHeight";
43 const QString GlobalSettings::Key_View_ShowHoverMarker = "View_ShowHoverMarker";
44 const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable";
45 const QString GlobalSettings::Key_Log_BufferSize = "Log_BufferSize";
46 const QString GlobalSettings::Key_Log_NotifyOfStacktrace = "Log_NotifyOfStacktrace";
48 vector<GlobalSettingsInterface*> GlobalSettings::callbacks_;
49 bool GlobalSettings::tracking_ = false;
50 map<QString, QVariant> GlobalSettings::tracked_changes_;
52 GlobalSettings::GlobalSettings() :
55 beginGroup("Settings");
58 void GlobalSettings::set_defaults_where_needed()
60 // Enable zoom-to-fit after acquisition by default
61 if (!contains(Key_View_ZoomToFitAfterAcq))
62 setValue(Key_View_ZoomToFitAfterAcq, true);
64 // Enable colored trace backgrounds by default
65 if (!contains(Key_View_ColoredBG))
66 setValue(Key_View_ColoredBG, true);
68 // Enable showing sampling points by default
69 if (!contains(Key_View_ShowSamplingPoints))
70 setValue(Key_View_ShowSamplingPoints, true);
72 if (!contains(Key_View_DefaultDivHeight))
73 setValue(Key_View_DefaultDivHeight,
74 3 * QFontMetrics(QApplication::font()).height());
76 if (!contains(Key_View_DefaultLogicHeight))
77 setValue(Key_View_DefaultLogicHeight,
78 2 * QFontMetrics(QApplication::font()).height());
80 // Default to 500 lines of backlog
81 if (!contains(Key_Log_BufferSize))
82 setValue(Key_Log_BufferSize, 500);
84 // Notify user of existing stack trace by default
85 if (!contains(Key_Log_NotifyOfStacktrace))
86 setValue(Key_Log_NotifyOfStacktrace, true);
89 void GlobalSettings::add_change_handler(GlobalSettingsInterface *cb)
91 callbacks_.push_back(cb);
94 void GlobalSettings::remove_change_handler(GlobalSettingsInterface *cb)
96 for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++)
98 callbacks_.erase(cb_it);
103 void GlobalSettings::setValue(const QString &key, const QVariant &value)
105 // Save previous value if we're tracking changes,
106 // not altering an already-existing saved setting
108 tracked_changes_.emplace(key, QSettings::value(key));
110 QSettings::setValue(key, value);
112 // TODO Emulate noquote()
113 qDebug() << "Setting" << key << "changed to" << value;
115 // Call all registered callbacks
116 for (GlobalSettingsInterface *cb : callbacks_)
117 cb->on_setting_changed(key, value);
120 void GlobalSettings::start_tracking()
123 tracked_changes_.clear();
126 void GlobalSettings::stop_tracking()
129 tracked_changes_.clear();
132 void GlobalSettings::undo_tracked_changes()
136 for (auto entry : tracked_changes_)
137 setValue(entry.first, entry.second);
139 tracked_changes_.clear();
142 void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v)
144 const GVariantType *var_type = g_variant_get_type(v);
145 char *var_type_str = g_variant_type_dup_string(var_type);
147 QByteArray var_data = QByteArray((const char*)g_variant_get_data(v),
148 g_variant_get_size(v));
150 settings.setValue("value", var_data);
151 settings.setValue("type", var_type_str);
153 g_free(var_type_str);
156 GVariant* GlobalSettings::restore_gvariant(QSettings &settings)
158 QString raw_type = settings.value("type").toString();
159 GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
161 QByteArray data = settings.value("value").toByteArray();
163 gpointer var_data = g_memdup((gconstpointer)data.constData(),
166 GVariant *value = g_variant_new_from_data(var_type, var_data,
167 data.size(), false, g_free, var_data);
169 g_variant_type_free(var_type);
174 void GlobalSettings::store_variantbase(QSettings &settings, Glib::VariantBase v)
176 const QByteArray var_data = QByteArray((const char*)v.get_data(), v.get_size());
178 settings.setValue("value", var_data);
179 settings.setValue("type", QString::fromStdString(v.get_type_string()));
182 Glib::VariantBase GlobalSettings::restore_variantbase(QSettings &settings)
184 QString raw_type = settings.value("type").toString();
185 GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
187 QByteArray data = settings.value("value").toByteArray();
189 gpointer var_data = g_memdup((gconstpointer)data.constData(),
192 GVariant *value = g_variant_new_from_data(var_type, var_data,
193 data.size(), false, g_free, var_data);
195 Glib::VariantBase ret_val = Glib::VariantBase(value, true);
197 g_variant_type_free(var_type);
198 g_variant_unref(value);