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engines/agds/systemVariable.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 SYSTEM_VARIABLE_H
+#define SYSTEM_VARIABLE_H
+
+#include "common/scummsys.h"
+#include "common/str.h"
+
+namespace Common {
+class ReadStream;
+class WriteStream;
+} // namespace Common
+
+namespace AGDS {
+
+class SystemVariable {
+public:
+	virtual ~SystemVariable() {}
+
+	virtual const Common::String &getString() const = 0;
+	virtual int getInteger() const = 0;
+	virtual void setString(const Common::String &value) = 0;
+	virtual void setInteger(int value) = 0;
+	virtual void reset() = 0;
+	virtual void read(Common::ReadStream &stream) = 0;
+	virtual void write(Common::WriteStream &stream) const = 0;
+};
+
+class IntegerSystemVariable : public SystemVariable {
+	int _value;
+	int _defaultValue;
+
+public:
+	IntegerSystemVariable(int defaultValue = 0) : _value(defaultValue), _defaultValue(defaultValue) {
+	}
+
+	virtual const Common::String &getString() const;
+	virtual int getInteger() const;
+	virtual void setString(const Common::String &value);
+	virtual void setInteger(int value);
+	virtual void reset() {
+		_value = _defaultValue;
+	}
+	virtual void read(Common::ReadStream &stream);
+	virtual void write(Common::WriteStream &stream) const;
+};
+
+class StringSystemVariable : public SystemVariable {
+	Common::String _value;
+	Common::String _defaultValue;
+
+public:
+	StringSystemVariable(const Common::String &defaultValue = Common::String()) : _value(defaultValue), _defaultValue(defaultValue) {
+	}
+	virtual const Common::String &getString() const;
+	virtual int getInteger() const;
+	virtual void setString(const Common::String &value);
+	virtual void setInteger(int value);
+	virtual void reset() {
+		_value = _defaultValue;
+	}
+	virtual void read(Common::ReadStream &stream);
+	virtual void write(Common::WriteStream &stream) const;
+};
+
+} // End of namespace AGDS
+
+#endif /* AGDS_SYSTEM_VARIABLE_H */