Support loadConfig & saveConfig API functions.

Author: malinajan

config-window.cpp

@@ -40,8 +40,6 @@ void LibMain::cb_connections_changed(int) {
 	s["XN"]["port"] = form.ui.cb_serial_port->currentText();
 	s["XN"]["baudrate"] = form.ui.cb_serial_speed->currentText().toInt();
 	s["XN"]["flowcontrol"] = form.ui.cb_serial_flowcontrol->currentIndex();
-
-	s.save(_CONFIG_FILENAME);
 }
 
 void LibMain::fillConnectionsCbs() {

lib-api.cpp

@@ -31,6 +31,27 @@ unsigned int features() {
 	return 0; // no features yet
 }
 
+///////////////////////////////////////////////////////////////////////////////
+// Config
+
+int loadConfig(char16_t *filename) {
+	if (lib.xn.connected())
+		return TRK_FILE_DEVICE_OPENED;
+	try {
+		lib.config_filename = QString::fromUtf16(filename);
+		lib.s.load(lib.config_filename);
+		lib.fillConnectionsCbs();
+	} catch (...) { return TRK_FILE_CANNOT_ACCESS; }
+	return 0;
+}
+
+int saveConfig(char16_t *filename) {
+	try {
+		lib.s.save(QString::fromUtf16(filename));
+	} catch (...) { return TRK_FILE_CANNOT_ACCESS; }
+	return 0;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Connect / disconnect
 

lib-api.h

@@ -35,6 +35,9 @@ XN_SHARED_EXPORT bool CALL_CONV apiSupportsVersion(unsigned int version);
 XN_SHARED_EXPORT int CALL_CONV apiSetVersion(unsigned int version);
 XN_SHARED_EXPORT unsigned int CALL_CONV features();
 
+XN_SHARED_EXPORT int CALL_CONV loadConfig(char16_t *filename);
+XN_SHARED_EXPORT int CALL_CONV saveConfig(char16_t *filename);
+
 XN_SHARED_EXPORT int CALL_CONV connect();
 XN_SHARED_EXPORT int CALL_CONV disconnect();
 XN_SHARED_EXPORT bool CALL_CONV connected();

lib-errors.h

@@ -1,6 +1,8 @@
 #ifndef LIB_ERRORS_H
 #define LIB_ERRORS_H
 
+constexpr int TRK_FILE_CANNOT_ACCESS = 1010;
+constexpr int TRK_FILE_DEVICE_OPENED = 1011;
 constexpr int TRK_ALREADY_OPENNED = 2001;
 constexpr int TRK_CANNOT_OPEN_PORT = 2002;
 constexpr int TRK_NOT_OPENED = 2011;

lib-main.cpp

@@ -19,7 +19,8 @@ LibMain::LibMain() {
 	QObject::connect(&xn, SIGNAL(onTrkStatusChanged(Xn::TrkStatus)), this,
 					 SLOT(xnOnTrkStatusChanged(Xn::TrkStatus)));
 
-	s.load(_CONFIG_FILENAME);
+	this->config_filename = _DEFAULT_CONFIG_FILENAME;
+	s.load(this->config_filename);
 	this->guiInit();
 	log("Library loaded.", LogLevel::Info);
 }
@@ -28,6 +29,8 @@ LibMain::~LibMain() {
 	try {
 		if (xn.connected())
 			xn.disconnect();
+		if (this->config_filename != "")
+			this->s.save(this->config_filename);
 	} catch (...) {
 		// No exceptions in destructor!
 	}

lib-main.h

@@ -14,7 +14,7 @@ namespace Xn {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-const QString _CONFIG_FILENAME = "trakce-xn.ini";
+const QString _DEFAULT_CONFIG_FILENAME = "trakce-xn.ini";
 
 class ConfigWindow : public QMainWindow {
 	Q_OBJECT
@@ -30,6 +30,7 @@ class LibMain : public QObject {
 	ConfigWindow form;
 	XnEvents events;
 	Settings s;
+	QString config_filename = "";
 	unsigned int api_version = 0x0001;
 	bool gui_config_changing = false;
 	bool opening = false;