[pulseview.git] / pv / globalsettings.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "globalsettings.hpp"

#include <QApplication>
#include <QColor>
#include <QDebug>
#include <QFile>
#include <QFontMetrics>
#include <QPixmapCache>
#include <QString>
#include <QStyle>
#include <QtGlobal>

using std::map;
using std::pair;
using std::string;
using std::vector;

namespace pv {

const vector< pair<QString, QString> > Themes {
	{"None" , ""},
	{"QDarkStyleSheet", ":/themes/qdarkstyle/style.qss"},
	{"DarkStyle", ":/themes/darkstyle/darkstyle.qss"}
};

const QString GlobalSettings::Key_General_Theme = "General_Theme";
const QString GlobalSettings::Key_General_Style = "General_Style";
const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq";
const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq";
const QString GlobalSettings::Key_View_TriggerIsZeroTime = "View_TriggerIsZeroTime";
const QString GlobalSettings::Key_View_ColoredBG = "View_ColoredBG";
const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling";
const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints";
const QString GlobalSettings::Key_View_FillSignalHighAreas = "View_FillSignalHighAreas";
const QString GlobalSettings::Key_View_FillSignalHighAreaColor = "View_FillSignalHighAreaColor";
const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid";
const QString GlobalSettings::Key_View_ConversionThresholdDispMode = "View_ConversionThresholdDispMode";
const QString GlobalSettings::Key_View_DefaultDivHeight = "View_DefaultDivHeight";
const QString GlobalSettings::Key_View_DefaultLogicHeight = "View_DefaultLogicHeight";
const QString GlobalSettings::Key_View_ShowHoverMarker = "View_ShowHoverMarker";
const QString GlobalSettings::Key_View_SnapDistance = "View_SnapDistance";
const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable";
const QString GlobalSettings::Key_Dec_ExportFormat = "Dec_ExportFormat";
const QString GlobalSettings::Key_Log_BufferSize = "Log_BufferSize";
const QString GlobalSettings::Key_Log_NotifyOfStacktrace = "Log_NotifyOfStacktrace";

vector<GlobalSettingsInterface*> GlobalSettings::callbacks_;
bool GlobalSettings::tracking_ = false;
map<QString, QVariant> GlobalSettings::tracked_changes_;
QString GlobalSettings::default_style_;
QPalette GlobalSettings::default_palette_;

GlobalSettings::GlobalSettings() :
	QSettings()
{
	beginGroup("Settings");
}

void GlobalSettings::set_defaults_where_needed()
{
	// Use no theme by default
	if (!contains(Key_General_Theme))
		setValue(Key_General_Theme, 0);
	if (!contains(Key_General_Style))
		setValue(Key_General_Style, "");

	// Enable zoom-to-fit after acquisition by default
	if (!contains(Key_View_ZoomToFitAfterAcq))
		setValue(Key_View_ZoomToFitAfterAcq, true);

	// Enable colored trace backgrounds by default
	if (!contains(Key_View_ColoredBG))
		setValue(Key_View_ColoredBG, true);

	// Enable showing sampling points by default
	if (!contains(Key_View_ShowSamplingPoints))
		setValue(Key_View_ShowSamplingPoints, true);

	// Enable filling logic signal high areas by default
	if (!contains(Key_View_FillSignalHighAreas))
		setValue(Key_View_FillSignalHighAreas, true);
	if (!contains(Key_View_FillSignalHighAreaColor))
		setValue(Key_View_FillSignalHighAreaColor,
			QColor(0, 0, 0, 5 * 256 / 100).rgba());

	if (!contains(Key_View_DefaultDivHeight))
		setValue(Key_View_DefaultDivHeight,
		3 * QFontMetrics(QApplication::font()).height());

	if (!contains(Key_View_DefaultLogicHeight))
		setValue(Key_View_DefaultLogicHeight,
		2 * QFontMetrics(QApplication::font()).height());

	if (!contains(Key_View_ShowHoverMarker))
		setValue(Key_View_ShowHoverMarker, true);

	if (!contains(Key_View_SnapDistance))
		setValue(Key_View_SnapDistance, 15);

	if (!contains(Key_Dec_ExportFormat))
		setValue(Key_Dec_ExportFormat, "%s %d: %c: %1");

	// Default to 500 lines of backlog
	if (!contains(Key_Log_BufferSize))
		setValue(Key_Log_BufferSize, 500);

	// Notify user of existing stack trace by default
	if (!contains(Key_Log_NotifyOfStacktrace))
		setValue(Key_Log_NotifyOfStacktrace, true);
}

void GlobalSettings::save_internal_defaults()
{
	default_style_ = qApp->style()->objectName();
	if (default_style_.isEmpty())
		default_style_ = "fusion";

	default_palette_ = QApplication::palette();
}

void GlobalSettings::apply_theme()
{
	QString theme_name    = Themes.at(value(Key_General_Theme).toInt()).first;
	QString resource_name = Themes.at(value(Key_General_Theme).toInt()).second;

	if (!resource_name.isEmpty()) {
		QFile file(resource_name);
		file.open(QFile::ReadOnly | QFile::Text);
		qApp->setStyleSheet(file.readAll());
	} else
		qApp->setStyleSheet("");

	qApp->setPalette(default_palette_);

	const QString style = value(Key_General_Style).toString();
	if (style.isEmpty())
		qApp->setStyle(default_style_);
	else
		qApp->setStyle(style);

	if (theme_name.compare("QDarkStyleSheet") == 0) {
		QPalette dark_palette;
		dark_palette.setColor(QPalette::Window, QColor(53, 53, 53));
		dark_palette.setColor(QPalette::WindowText, Qt::white);
		dark_palette.setColor(QPalette::Base, QColor(42, 42, 42));
		dark_palette.setColor(QPalette::Dark, QColor(35, 35, 35));
		dark_palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
		qApp->setPalette(dark_palette);
	} else if (theme_name.compare("DarkStyle") == 0) {
		QPalette dark_palette;
		dark_palette.setColor(QPalette::Window, QColor(53, 53, 53));
		dark_palette.setColor(QPalette::WindowText, Qt::white);
		dark_palette.setColor(QPalette::Disabled, QPalette::WindowText, QColor(127, 127, 127));
		dark_palette.setColor(QPalette::Base, QColor(42, 42, 42));
		dark_palette.setColor(QPalette::AlternateBase, QColor(66, 66, 66));
		dark_palette.setColor(QPalette::ToolTipBase, Qt::white);
		dark_palette.setColor(QPalette::ToolTipText, QColor(53, 53, 53));
		dark_palette.setColor(QPalette::Text, Qt::white);
		dark_palette.setColor(QPalette::Disabled, QPalette::Text, QColor(127, 127, 127));
		dark_palette.setColor(QPalette::Dark, QColor(35, 35, 35));
		dark_palette.setColor(QPalette::Shadow, QColor(20, 20, 20));
		dark_palette.setColor(QPalette::Button, QColor(53, 53, 53));
		dark_palette.setColor(QPalette::ButtonText, Qt::white);
		dark_palette.setColor(QPalette::Disabled, QPalette::ButtonText, QColor(127, 127, 127));
		dark_palette.setColor(QPalette::BrightText, Qt::red);
		dark_palette.setColor(QPalette::Link, QColor(42, 130, 218));
		dark_palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
		dark_palette.setColor(QPalette::Disabled, QPalette::Highlight, QColor(80, 80, 80));
		dark_palette.setColor(QPalette::HighlightedText, Qt::white);
		dark_palette.setColor(QPalette::Disabled, QPalette::HighlightedText, QColor(127, 127, 127));
		qApp->setPalette(dark_palette);
	}

	QPixmapCache::clear();
}

void GlobalSettings::add_change_handler(GlobalSettingsInterface *cb)
{
	callbacks_.push_back(cb);
}

void GlobalSettings::remove_change_handler(GlobalSettingsInterface *cb)
{
	for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++)
		if (*cb_it == cb) {
			callbacks_.erase(cb_it);
			break;
		}
}

void GlobalSettings::setValue(const QString &key, const QVariant &value)
{
	// Save previous value if we're tracking changes,
	// not altering an already-existing saved setting
	if (tracking_)
		tracked_changes_.emplace(key, QSettings::value(key));

	QSettings::setValue(key, value);

	// TODO Emulate noquote()
	qDebug() << "Setting" << key << "changed to" << value;

	// Call all registered callbacks
	for (GlobalSettingsInterface *cb : callbacks_)
		cb->on_setting_changed(key, value);
}

void GlobalSettings::start_tracking()
{
	tracking_ = true;
	tracked_changes_.clear();
}

void GlobalSettings::stop_tracking()
{
	tracking_ = false;
	tracked_changes_.clear();
}

void GlobalSettings::undo_tracked_changes()
{
	tracking_ = false;

	for (auto& entry : tracked_changes_)
		setValue(entry.first, entry.second);

	tracked_changes_.clear();
}

void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v)
{
	const GVariantType *var_type = g_variant_get_type(v);
	char *var_type_str = g_variant_type_dup_string(var_type);

	QByteArray var_data = QByteArray((const char*)g_variant_get_data(v),
		g_variant_get_size(v));

	settings.setValue("value", var_data);
	settings.setValue("type", var_type_str);

	g_free(var_type_str);
}

GVariant* GlobalSettings::restore_gvariant(QSettings &settings)
{
	QString raw_type = settings.value("type").toString();
	GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());

	QByteArray data = settings.value("value").toByteArray();

	gpointer var_data = g_memdup((gconstpointer)data.constData(),
		(guint)data.size());

	GVariant *value = g_variant_new_from_data(var_type, var_data,
		data.size(), false, g_free, var_data);

	g_variant_type_free(var_type);

	return value;
}

void GlobalSettings::store_variantbase(QSettings &settings, Glib::VariantBase v)
{
	const QByteArray var_data = QByteArray((const char*)v.get_data(), v.get_size());

	settings.setValue("value", var_data);
	settings.setValue("type", QString::fromStdString(v.get_type_string()));
}

Glib::VariantBase GlobalSettings::restore_variantbase(QSettings &settings)
{
	QString raw_type = settings.value("type").toString();
	GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());

	QByteArray data = settings.value("value").toByteArray();

	gpointer var_data = g_memdup((gconstpointer)data.constData(),
		(guint)data.size());

	GVariant *value = g_variant_new_from_data(var_type, var_data,
		data.size(), false, g_free, var_data);

	Glib::VariantBase ret_val = Glib::VariantBase(value, true);

	g_variant_type_free(var_type);
	g_variant_unref(value);

	return ret_val;
}

} // namespace pv
Commit	Line	Data
	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	#include "globalsettings.hpp"
	21
	22	#include <QApplication>
	23	#include <QColor>
	24	#include <QDebug>
	25	#include <QFile>
	26	#include <QFontMetrics>
	27	#include <QPixmapCache>
	28	#include <QString>
	29	#include <QStyle>
	30	#include <QtGlobal>
	31
	32	using std::map;
	33	using std::pair;
	34	using std::string;
	35	using std::vector;
	36
	37	namespace pv {
	38
	39	const vector< pair<QString, QString> > Themes {
	40	{"None" , ""},
	41	{"QDarkStyleSheet", ":/themes/qdarkstyle/style.qss"},
	42	{"DarkStyle", ":/themes/darkstyle/darkstyle.qss"}
	43	};
	44
	45	const QString GlobalSettings::Key_General_Theme = "General_Theme";
	46	const QString GlobalSettings::Key_General_Style = "General_Style";
	47	const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq";
	48	const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq";
	49	const QString GlobalSettings::Key_View_TriggerIsZeroTime = "View_TriggerIsZeroTime";
	50	const QString GlobalSettings::Key_View_ColoredBG = "View_ColoredBG";
	51	const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling";
	52	const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints";
	53	const QString GlobalSettings::Key_View_FillSignalHighAreas = "View_FillSignalHighAreas";
	54	const QString GlobalSettings::Key_View_FillSignalHighAreaColor = "View_FillSignalHighAreaColor";
	55	const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid";
	56	const QString GlobalSettings::Key_View_ConversionThresholdDispMode = "View_ConversionThresholdDispMode";
	57	const QString GlobalSettings::Key_View_DefaultDivHeight = "View_DefaultDivHeight";
	58	const QString GlobalSettings::Key_View_DefaultLogicHeight = "View_DefaultLogicHeight";
	59	const QString GlobalSettings::Key_View_ShowHoverMarker = "View_ShowHoverMarker";
	60	const QString GlobalSettings::Key_View_SnapDistance = "View_SnapDistance";
	61	const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable";
	62	const QString GlobalSettings::Key_Dec_ExportFormat = "Dec_ExportFormat";
	63	const QString GlobalSettings::Key_Log_BufferSize = "Log_BufferSize";
	64	const QString GlobalSettings::Key_Log_NotifyOfStacktrace = "Log_NotifyOfStacktrace";
	65
	66	vector<GlobalSettingsInterface*> GlobalSettings::callbacks_;
	67	bool GlobalSettings::tracking_ = false;
	68	map<QString, QVariant> GlobalSettings::tracked_changes_;
	69	QString GlobalSettings::default_style_;
	70	QPalette GlobalSettings::default_palette_;
	71
	72	GlobalSettings::GlobalSettings() :
	73	QSettings()
	74	{
	75	beginGroup("Settings");
	76	}
	77
	78	void GlobalSettings::set_defaults_where_needed()
	79	{
	80	// Use no theme by default
	81	if (!contains(Key_General_Theme))
	82	setValue(Key_General_Theme, 0);
	83	if (!contains(Key_General_Style))
	84	setValue(Key_General_Style, "");
	85
	86	// Enable zoom-to-fit after acquisition by default
	87	if (!contains(Key_View_ZoomToFitAfterAcq))
	88	setValue(Key_View_ZoomToFitAfterAcq, true);
	89
	90	// Enable colored trace backgrounds by default
	91	if (!contains(Key_View_ColoredBG))
	92	setValue(Key_View_ColoredBG, true);
	93
	94	// Enable showing sampling points by default
	95	if (!contains(Key_View_ShowSamplingPoints))
	96	setValue(Key_View_ShowSamplingPoints, true);
	97
	98	// Enable filling logic signal high areas by default
	99	if (!contains(Key_View_FillSignalHighAreas))
	100	setValue(Key_View_FillSignalHighAreas, true);
	101	if (!contains(Key_View_FillSignalHighAreaColor))
	102	setValue(Key_View_FillSignalHighAreaColor,
	103	QColor(0, 0, 0, 5 * 256 / 100).rgba());
	104
	105	if (!contains(Key_View_DefaultDivHeight))
	106	setValue(Key_View_DefaultDivHeight,
	107	3 * QFontMetrics(QApplication::font()).height());
	108
	109	if (!contains(Key_View_DefaultLogicHeight))
	110	setValue(Key_View_DefaultLogicHeight,
	111	2 * QFontMetrics(QApplication::font()).height());
	112
	113	if (!contains(Key_View_ShowHoverMarker))
	114	setValue(Key_View_ShowHoverMarker, true);
	115
	116	if (!contains(Key_View_SnapDistance))
	117	setValue(Key_View_SnapDistance, 15);
	118
	119	if (!contains(Key_Dec_ExportFormat))
	120	setValue(Key_Dec_ExportFormat, "%s %d: %c: %1");
	121
	122	// Default to 500 lines of backlog
	123	if (!contains(Key_Log_BufferSize))
	124	setValue(Key_Log_BufferSize, 500);
	125
	126	// Notify user of existing stack trace by default
	127	if (!contains(Key_Log_NotifyOfStacktrace))
	128	setValue(Key_Log_NotifyOfStacktrace, true);
	129	}
	130
	131	void GlobalSettings::save_internal_defaults()
	132	{
	133	default_style_ = qApp->style()->objectName();
	134	if (default_style_.isEmpty())
	135	default_style_ = "fusion";
	136
	137	default_palette_ = QApplication::palette();
	138	}
	139
	140	void GlobalSettings::apply_theme()
	141	{
	142	QString theme_name = Themes.at(value(Key_General_Theme).toInt()).first;
	143	QString resource_name = Themes.at(value(Key_General_Theme).toInt()).second;
	144
	145	if (!resource_name.isEmpty()) {
	146	QFile file(resource_name);
	147	file.open(QFile::ReadOnly \| QFile::Text);
	148	qApp->setStyleSheet(file.readAll());
	149	} else
	150	qApp->setStyleSheet("");
	151
	152	qApp->setPalette(default_palette_);
	153
	154	const QString style = value(Key_General_Style).toString();
	155	if (style.isEmpty())
	156	qApp->setStyle(default_style_);
	157	else
	158	qApp->setStyle(style);
	159
	160	if (theme_name.compare("QDarkStyleSheet") == 0) {
	161	QPalette dark_palette;
	162	dark_palette.setColor(QPalette::Window, QColor(53, 53, 53));
	163	dark_palette.setColor(QPalette::WindowText, Qt::white);
	164	dark_palette.setColor(QPalette::Base, QColor(42, 42, 42));
	165	dark_palette.setColor(QPalette::Dark, QColor(35, 35, 35));
	166	dark_palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
	167	qApp->setPalette(dark_palette);
	168	} else if (theme_name.compare("DarkStyle") == 0) {
	169	QPalette dark_palette;
	170	dark_palette.setColor(QPalette::Window, QColor(53, 53, 53));
	171	dark_palette.setColor(QPalette::WindowText, Qt::white);
	172	dark_palette.setColor(QPalette::Disabled, QPalette::WindowText, QColor(127, 127, 127));
	173	dark_palette.setColor(QPalette::Base, QColor(42, 42, 42));
	174	dark_palette.setColor(QPalette::AlternateBase, QColor(66, 66, 66));
	175	dark_palette.setColor(QPalette::ToolTipBase, Qt::white);
	176	dark_palette.setColor(QPalette::ToolTipText, QColor(53, 53, 53));
	177	dark_palette.setColor(QPalette::Text, Qt::white);
	178	dark_palette.setColor(QPalette::Disabled, QPalette::Text, QColor(127, 127, 127));
	179	dark_palette.setColor(QPalette::Dark, QColor(35, 35, 35));
	180	dark_palette.setColor(QPalette::Shadow, QColor(20, 20, 20));
	181	dark_palette.setColor(QPalette::Button, QColor(53, 53, 53));
	182	dark_palette.setColor(QPalette::ButtonText, Qt::white);
	183	dark_palette.setColor(QPalette::Disabled, QPalette::ButtonText, QColor(127, 127, 127));
	184	dark_palette.setColor(QPalette::BrightText, Qt::red);
	185	dark_palette.setColor(QPalette::Link, QColor(42, 130, 218));
	186	dark_palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
	187	dark_palette.setColor(QPalette::Disabled, QPalette::Highlight, QColor(80, 80, 80));
	188	dark_palette.setColor(QPalette::HighlightedText, Qt::white);
	189	dark_palette.setColor(QPalette::Disabled, QPalette::HighlightedText, QColor(127, 127, 127));
	190	qApp->setPalette(dark_palette);
	191	}
	192
	193	QPixmapCache::clear();
	194	}
	195
	196	void GlobalSettings::add_change_handler(GlobalSettingsInterface *cb)
	197	{
	198	callbacks_.push_back(cb);
	199	}
	200
	201	void GlobalSettings::remove_change_handler(GlobalSettingsInterface *cb)
	202	{
	203	for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++)
	204	if (*cb_it == cb) {
	205	callbacks_.erase(cb_it);
	206	break;
	207	}
	208	}
	209
	210	void GlobalSettings::setValue(const QString &key, const QVariant &value)
	211	{
	212	// Save previous value if we're tracking changes,
	213	// not altering an already-existing saved setting
	214	if (tracking_)
	215	tracked_changes_.emplace(key, QSettings::value(key));
	216
	217	QSettings::setValue(key, value);
	218
	219	// TODO Emulate noquote()
	220	qDebug() << "Setting" << key << "changed to" << value;
	221
	222	// Call all registered callbacks
	223	for (GlobalSettingsInterface *cb : callbacks_)
	224	cb->on_setting_changed(key, value);
	225	}
	226
	227	void GlobalSettings::start_tracking()
	228	{
	229	tracking_ = true;
	230	tracked_changes_.clear();
	231	}
	232
	233	void GlobalSettings::stop_tracking()
	234	{
	235	tracking_ = false;
	236	tracked_changes_.clear();
	237	}
	238
	239	void GlobalSettings::undo_tracked_changes()
	240	{
	241	tracking_ = false;
	242
	243	for (auto& entry : tracked_changes_)
	244	setValue(entry.first, entry.second);
	245
	246	tracked_changes_.clear();
	247	}
	248
	249	void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v)
	250	{
	251	const GVariantType *var_type = g_variant_get_type(v);
	252	char *var_type_str = g_variant_type_dup_string(var_type);
	253
	254	QByteArray var_data = QByteArray((const char*)g_variant_get_data(v),
	255	g_variant_get_size(v));
	256
	257	settings.setValue("value", var_data);
	258	settings.setValue("type", var_type_str);
	259
	260	g_free(var_type_str);
	261	}
	262
	263	GVariant* GlobalSettings::restore_gvariant(QSettings &settings)
	264	{
	265	QString raw_type = settings.value("type").toString();
	266	GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
	267
	268	QByteArray data = settings.value("value").toByteArray();
	269
	270	gpointer var_data = g_memdup((gconstpointer)data.constData(),
	271	(guint)data.size());
	272
	273	GVariant *value = g_variant_new_from_data(var_type, var_data,
	274	data.size(), false, g_free, var_data);
	275
	276	g_variant_type_free(var_type);
	277
	278	return value;
	279	}
	280
	281	void GlobalSettings::store_variantbase(QSettings &settings, Glib::VariantBase v)
	282	{
	283	const QByteArray var_data = QByteArray((const char*)v.get_data(), v.get_size());
	284
	285	settings.setValue("value", var_data);
	286	settings.setValue("type", QString::fromStdString(v.get_type_string()));
	287	}
	288
	289	Glib::VariantBase GlobalSettings::restore_variantbase(QSettings &settings)
	290	{
	291	QString raw_type = settings.value("type").toString();
	292	GVariantType *var_type = g_variant_type_new(raw_type.toUtf8());
	293
	294	QByteArray data = settings.value("value").toByteArray();
	295
	296	gpointer var_data = g_memdup((gconstpointer)data.constData(),
	297	(guint)data.size());
	298
	299	GVariant *value = g_variant_new_from_data(var_type, var_data,
	300	data.size(), false, g_free, var_data);
	301
	302	Glib::VariantBase ret_val = Glib::VariantBase(value, true);
	303
	304	g_variant_type_free(var_type);
	305	g_variant_unref(value);
	306
	307	return ret_val;
	308	}
	309
	310	} // namespace pv