core: create qPrefGeocoding from SettingsObjectWrapper

Update set/get functions to follow common name scheme:
- get function have same name as in struct preferences
- set function have set_<name>
- signal function have <name>_changed

one class one .h/.cpp is the C++ idiom. Having load/sync of each
variable in 1 functions (in contrast to the distributed way
SettingsObjectWrapper handles it) secures the same storage name
is used. Having the set/get/load/sync functions grouped together
makes it easier to get an overview.

REMARK: this commit only defines the class, it is not active in production

Signed-off-by: Jan Iversen <jani@apache.org>

core/CMakeLists.txt

@@ -109,6 +109,7 @@ set(SUBSURFACE_CORE_LIB_SRCS
 	settings/qPrefDiveComputer.cpp
 	settings/qPrefDivePlanner.cpp
 	settings/qPrefFacebook.cpp
+	settings/qPrefGeocoding.cpp
 	settings/qPrefLanguage.cpp
 	settings/qPrefLocationService.cpp
 	settings/qPrefPrivate.cpp

core/settings/qPref.h

@@ -11,6 +11,7 @@
 #include "qPrefDiveComputer.h"
 #include "qPrefDivePlanner.h"
 #include "qPrefFacebook.h"
+#include "qPrefGeocoding.h"
 #include "qPrefLanguage.h"
 #include "qPrefLocationService.h"
 #include "qPrefProxy.h"

core/settings/qPrefGeocoding.cpp

@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "qPref.h"
+#include "qPrefPrivate.h"
+
+static const QString group = QStringLiteral("geocoding");
+
+qPrefGeocoding::qPrefGeocoding(QObject *parent) : QObject(parent)
+{
+}
+qPrefGeocoding *qPrefGeocoding::instance()
+{
+	static qPrefGeocoding *self = new qPrefGeocoding;
+	return self;
+}
+
+void qPrefGeocoding::loadSync(bool doSync)
+{
+	disk_first_taxonomy_category(doSync);
+	disk_second_taxonomy_category(doSync);
+	disk_third_taxonomy_category(doSync);
+}
+
+
+void qPrefGeocoding::set_first_taxonomy_category(taxonomy_category value)
+{
+	if (value != prefs.geocoding.category[0]) {
+		prefs.geocoding.category[0] = value;
+		disk_first_taxonomy_category(true);
+		emit first_taxonomy_category_changed(value);
+	}
+}
+void qPrefGeocoding::disk_first_taxonomy_category(bool doSync)
+{
+	if (doSync)
+		qPrefPrivate::instance()->setting.setValue(group + "/cat0", prefs.geocoding.category[0]);
+	else
+		prefs.geocoding.category[0] = (enum taxonomy_category)qPrefPrivate::instance()->setting.value(group + "/cat0", default_prefs.geocoding.category[0]).toInt();
+}
+
+
+void qPrefGeocoding::set_second_taxonomy_category(taxonomy_category value)
+{
+	if (value != prefs.geocoding.category[1]) {
+		prefs.geocoding.category[1] = value;
+		disk_second_taxonomy_category(true);
+		emit second_taxonomy_category_changed(value);
+	}
+}
+void qPrefGeocoding::disk_second_taxonomy_category(bool doSync)
+{
+	if (doSync)
+		qPrefPrivate::instance()->setting.setValue(group + "/cat1", prefs.geocoding.category[1]);
+	else
+		prefs.geocoding.category[1] = (enum taxonomy_category)qPrefPrivate::instance()->setting.value(group + "/cat1", default_prefs.geocoding.category[1]).toInt();
+}
+
+
+void qPrefGeocoding::set_third_taxonomy_category(taxonomy_category value)
+{
+	if (value != prefs.geocoding.category[2]) {
+		prefs.geocoding.category[2] = value;
+		disk_third_taxonomy_category(true);
+		emit third_taxonomy_category_changed(value);
+	}
+}
+void qPrefGeocoding::disk_third_taxonomy_category(bool doSync)
+{
+	if (doSync)
+		qPrefPrivate::instance()->setting.setValue(group + "/cat2", prefs.geocoding.category[2]);
+	else
+		prefs.geocoding.category[2] = (enum taxonomy_category)qPrefPrivate::instance()->setting.value(group + "/cat2", default_prefs.geocoding.category[2]).toInt();
+}

core/settings/qPrefGeocoding.h

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef QPREFGEOCODING_H
+#define QPREFGEOCODING_H
+#include "core/pref.h"
+
+#include <QObject>
+
+
+class qPrefGeocoding : public QObject {
+	Q_OBJECT
+	Q_PROPERTY(taxonomy_category first_taxonomy_category READ first_taxonomy_category WRITE set_first_taxonomy_category NOTIFY first_taxonomy_category_changed);
+	Q_PROPERTY(taxonomy_category second_taxonomy_category READ second_taxonomy_category WRITE set_second_taxonomy_category NOTIFY second_taxonomy_category_changed);
+	Q_PROPERTY(taxonomy_category third_taxonomy_category READ third_taxonomy_category WRITE set_third_taxonomy_category NOTIFY third_taxonomy_category_changed);
+
+public:
+	qPrefGeocoding(QObject *parent = NULL);
+	static qPrefGeocoding *instance();
+
+	// Load/Sync local settings (disk) and struct preference
+	void loadSync(bool doSync);
+	void load() { loadSync(false); }
+	void sync() { loadSync(true); }
+
+public:
+	taxonomy_category first_taxonomy_category() { return prefs.geocoding.category[0]; }
+	taxonomy_category second_taxonomy_category() { return prefs.geocoding.category[1]; }
+	taxonomy_category third_taxonomy_category() { return prefs.geocoding.category[2]; }
+
+public slots:
+	void set_first_taxonomy_category(taxonomy_category value);
+	void set_second_taxonomy_category(taxonomy_category value);
+	void set_third_taxonomy_category(taxonomy_category value);
+
+signals:
+	void first_taxonomy_category_changed(taxonomy_category value);
+	void second_taxonomy_category_changed(taxonomy_category value);
+	void third_taxonomy_category_changed(taxonomy_category value);
+
+private:
+	void disk_first_taxonomy_category(bool doSync);
+	void disk_second_taxonomy_category(bool doSync);
+	void disk_third_taxonomy_category(bool doSync);
+};
+
+#endif

core/settings/qPrefPrivate.h

@@ -20,6 +20,7 @@ public:
 	friend class qPrefDiveComputer;
 	friend class qPrefDivePlanner;
 	friend class qPrefFacebook;
+	friend class qPrefGeocoding;
 	friend class qPrefLanguage;
 	friend class qPrefLocationService;
 	friend class qPrefProxy;

packaging/ios/Subsurface-mobile.pro

@@ -84,6 +84,7 @@ SOURCES += ../../subsurface-mobile-main.cpp \
 	../../core/settings/qPrefDiveComputer.cpp \
 	../../core/settings/qPrefDivePlanner.cpp \
 	../../core/settings/qPrefFacebook.cpp \
+	../../core/settings/qPrefGeocoding.cpp \
 	../../core/settings/qPrefLanguage.cpp \
 	../../core/settings/qPrefLocationService.cpp \
 	../../core/settings/qPrefPrivate.cpp \
@@ -204,6 +205,7 @@ HEADERS += \
 	../../core/settings/qPrefDiveComputer.h \
 	../../core/settings/qPrefDivePlanner.h \
 	../../core/settings/qPrefFacebook.h \
+	../../core/settings/qPrefGeocoding.h \
 	../../core/settings/qPrefLanguage.h \
 	../../core/settings/qPrefLocationService.h \
 	../../core/settings/qPrefPrivate.h \