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engines/ultima/shared/conf/conf_serializer.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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/>.
+ *
+ */
+
+#ifndef SHARED_CONF_CONF_SERIALIZER_H
+#define SHARED_CONF_CONF_SERIALIZER_H
+
+#include "common/config-manager.h"
+
+namespace Ultima {
+namespace Shared {
+
+/**
+ * A simplified serializer class for reading/writing stuff from ConfMan
+ */
+class ConfSerializer {
+private:
+	bool _isSaving;
+public:
+	/**
+	 * Constructor
+	 */
+	ConfSerializer(bool saving) : _isSaving(saving) {}
+
+	/**
+	 * Destructor
+	 */
+	~ConfSerializer() {
+		if (_isSaving)
+			ConfMan.flushToDisk();
+	}
+
+	/**
+	 * Returns true if saving
+	 */
+	bool isSaving() const {
+		return _isSaving;
+	}
+
+	/**
+	 * Returns true if loading
+	 */
+	bool isLoading() const {
+		return !_isSaving;
+	}
+
+	/**
+	 * Syncs a string
+	 */
+	void syncAsString(const Common::String &key, Common::String &value,
+			const char *defaultValue = nullptr) {
+		if (_isSaving)
+			ConfMan.set(key, value);
+		else
+			value = ConfMan.hasKey(key) ? ConfMan.get(key) : Common::String(defaultValue);
+	}
+
+	/**
+	 * Syncs a boolean
+	 */
+	void syncAsBool(const Common::String &key, bool &value,
+			bool defaultValue = false) {
+		if (_isSaving)
+			ConfMan.setBool(key, value);
+		else
+			value = ConfMan.hasKey(key) ? ConfMan.getBool(key) : defaultValue;
+	}
+
+	/**
+	 * Syncs an integer
+	 */
+	template<typename T>
+	void syncAsInt(const Common::String &key, T &value, T defaultValue = 0) {
+		if (_isSaving)
+			ConfMan.setInt(key, value);
+		else
+			value = ConfMan.hasKey(key) ? ConfMan.getInt(key) : defaultValue;
+	}
+};
+
+} // End of namespace Shared
+} // End of namespace Ultima
+
+#endif