core: create qPrefPartialPressureGas from SettingsObjectWrapper

Update set/get functions to follow common name scheme:
- get function have same name as in struct diveComputer
- 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

@@ -112,6 +112,7 @@ set(SUBSURFACE_CORE_LIB_SRCS
 	settings/qPrefGeocoding.cpp
 	settings/qPrefLanguage.cpp
 	settings/qPrefLocationService.cpp
+	settings/qPrefPartialPressureGas.cpp
 	settings/qPrefPrivate.cpp
 	settings/qPrefProxy.cpp
 	settings/qPrefTechnicalDetails.cpp

core/settings/qPref.h

@@ -14,6 +14,7 @@
 #include "qPrefGeocoding.h"
 #include "qPrefLanguage.h"
 #include "qPrefLocationService.h"
+#include "qPrefPartialPressureGas.h"
 #include "qPrefProxy.h"
 #include "qPrefTechnicalDetails.h"
 #include "qPrefUnit.h"

core/settings/qPrefPartialPressureGas.cpp

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "qPref.h"
+#include "qPrefPrivate.h"
+
+static const QString group = QStringLiteral("TecDetails");
+
+qPrefPartialPressureGas::qPrefPartialPressureGas(QObject *parent) : QObject(parent)
+{
+}
+qPrefPartialPressureGas *qPrefPartialPressureGas::instance()
+{
+	static qPrefPartialPressureGas *self = new qPrefPartialPressureGas;
+	return self;
+}
+
+void qPrefPartialPressureGas::loadSync(bool doSync)
+{
+	disk_phe(doSync);
+	disk_phe_threshold(doSync);
+	disk_pn2(doSync);
+	disk_pn2_threshold(doSync);
+	disk_po2(doSync);
+	disk_po2_threshold_min(doSync);
+	disk_po2_threshold_max(doSync);
+}
+
+
+HANDLE_PREFERENCE_BOOL_EXT(PartialPressureGas, "/phegraph", phe, pp_graphs.);
+
+HANDLE_PREFERENCE_DOUBLE_EXT(PartialPressureGas, "/phethreshold", phe_threshold, pp_graphs.);
+
+HANDLE_PREFERENCE_BOOL_EXT(PartialPressureGas, "/pn2graph", pn2, pp_graphs.);
+
+HANDLE_PREFERENCE_DOUBLE_EXT(PartialPressureGas, "/pn2threshold", pn2_threshold, pp_graphs.);
+
+HANDLE_PREFERENCE_BOOL_EXT(PartialPressureGas, "/po2graph", po2, pp_graphs.);
+
+HANDLE_PREFERENCE_DOUBLE_EXT(PartialPressureGas, "/po2thresholdmax", po2_threshold_max, pp_graphs.);
+
+HANDLE_PREFERENCE_DOUBLE_EXT(PartialPressureGas, "/po2thresholdmin", po2_threshold_min, pp_graphs.);

core/settings/qPrefPartialPressureGas.h

@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef QPREFPARTICULARPRESSUREGAS_H
+#define QPREFPARTICULARPRESSUREGAS_H
+#include "core/pref.h"
+
+#include <QObject>
+
+class qPrefPartialPressureGas : public QObject {
+	Q_OBJECT
+	Q_PROPERTY(bool phe READ phe WRITE set_phe NOTIFY phe_changed);
+	Q_PROPERTY(double phe_threshold READ phe_threshold WRITE set_phe_threshold NOTIFY phe_threshold_changed);
+	Q_PROPERTY(bool pn2 READ pn2 WRITE set_pn2 NOTIFY pn2_changed);
+	Q_PROPERTY(double pn2_threshold READ pn2_threshold WRITE set_pn2_threshold NOTIFY pn2_threshold_changed);
+	Q_PROPERTY(bool po2 READ po2 WRITE set_po2 NOTIFY po2_changed);
+	Q_PROPERTY(double po2_threshold_max READ po2_threshold_max WRITE set_po2_threshold_max NOTIFY po2_threshold_max_changed);
+	Q_PROPERTY(double po2_threshold_min READ po2_threshold_min WRITE set_po2_threshold_min NOTIFY po2_threshold_min_changed);
+
+public:
+	qPrefPartialPressureGas(QObject *parent = NULL);
+	static qPrefPartialPressureGas *instance();
+
+	// Load/Sync local settings (disk) and struct preference
+	void loadSync(bool doSync);
+	void load() { loadSync(false); }
+	void sync() { loadSync(true); }
+
+public:
+	bool phe() { return prefs.pp_graphs.phe; }
+	double phe_threshold() { return prefs.pp_graphs.phe_threshold; }
+	bool pn2() { return prefs.pp_graphs.pn2; }
+	double pn2_threshold() { return prefs.pp_graphs.pn2_threshold; }
+	bool po2() { return prefs.pp_graphs.po2; }
+	double po2_threshold_max() { return prefs.pp_graphs.po2_threshold_max; }
+	double po2_threshold_min() { return prefs.pp_graphs.po2_threshold_min; }
+
+public slots:
+	void set_phe(bool value);
+	void set_phe_threshold(double value);
+	void set_pn2(bool value);
+	void set_pn2_threshold(double value);
+	void set_po2(bool value);
+	void set_po2_threshold_min(double value);
+	void set_po2_threshold_max(double value);
+
+signals:
+	void phe_changed(bool value);
+	void phe_threshold_changed(double value);
+	void pn2_changed(bool value);
+	void pn2_threshold_changed(double value);
+	void po2_changed(bool value);
+	void po2_threshold_max_changed(double value);
+	void po2_threshold_min_changed(double value);
+
+private:
+	void disk_phe(bool doSync);
+	void disk_phe_threshold(bool doSync);
+	void disk_pn2(bool doSync);
+	void disk_pn2_threshold(bool doSync);
+	void disk_po2(bool doSync);
+	void disk_po2_threshold_min(bool doSync);
+	void disk_po2_threshold_max(bool doSync);
+};
+
+#endif

core/settings/qPrefPrivate.h

@@ -23,6 +23,7 @@ public:
 	friend class qPrefGeocoding;
 	friend class qPrefLanguage;
 	friend class qPrefLocationService;
+	friend class qPrefPartialPressureGas;
 	friend class qPrefProxy;
 	friend class qPrefTechnicalDetails;
 	friend class qPrefUnits;

packaging/ios/Subsurface-mobile.pro

@@ -87,6 +87,7 @@ SOURCES += ../../subsurface-mobile-main.cpp \
 	../../core/settings/qPrefGeocoding.cpp \
 	../../core/settings/qPrefLanguage.cpp \
 	../../core/settings/qPrefLocationService.cpp \
+	../../core/settings/qPrefPartialPressureGas.cpp \
 	../../core/settings/qPrefPrivate.cpp \
 	../../core/settings/qPrefProxy.cpp \
 	../../core/settings/qPrefTechnicalDetails.cpp \
@@ -208,6 +209,7 @@ HEADERS += \
 	../../core/settings/qPrefGeocoding.h \
 	../../core/settings/qPrefLanguage.h \
 	../../core/settings/qPrefLocationService.h \
+	../../core/settings/qPrefPartialPressureGas.h \
 	../../core/settings/qPrefPrivate.h \
 	../../core/settings/qPrefProxy.h \
 	../../core/settings/qPrefTechnicalDetails.h \