1 files changed, 139 insertions, 0 deletions
diff --git a/engines/titanic/core/list.h b/engines/titanic/core/list.h
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+++ b/engines/titanic/core/list.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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef TITANIC_LIST_H
+#define TITANIC_LIST_H
+
+#include "common/scummsys.h"
+#include "common/list.h"
+#include "titanic/simple_file.h"
+#include "titanic/core/saveable_object.h"
+
+namespace Titanic {
+
+/**
+ * Base list item class
+ */
+class ListItem: public CSaveableObject {
+public:
+	/**
+	 * Return the class name
+	 */
+	virtual const char *getClassName() const { return "ListItem"; }
+
+	/**
+	 * Save the data for the class to file
+	 */
+	virtual void save(SimpleFile *file, int indent) const;
+
+	/**
+	 * Load the data for the class from file
+	 */
+	virtual void load(SimpleFile *file);
+};
+
+template<typename T>
+class List : public CSaveableObject, public Common::List<T *> {
+public:
+	/**
+	 * Return the class name
+	 */
+	virtual const char *getClassName() const { return nullptr; }
+
+	/**
+	 * Save the data for the class to file
+	 */
+	virtual void save(SimpleFile *file, int indent) const {
+		file->writeNumberLine(0, indent);
+
+		// Write out number of items
+		file->writeQuotedLine("L", indent);
+		file->writeNumberLine(Common::List<T *>::size(), indent);
+
+		// Iterate through writing entries
+		Common::List<T *>::const_iterator i;
+		for (i = Common::List<T *>::begin(); i != Common::List<T *>::end(); ++i) {
+			const ListItem *item = *i;
+			item->saveHeader(file, indent);
+			item->save(file, indent + 1);
+			item->saveFooter(file, indent);
+		}
+
+	}
+
+	/**
+	 * Load the data for the class from file
+	 */
+	virtual void load(SimpleFile *file) {
+		file->readNumber();
+		file->readBuffer();
+
+		Common::List<T *>::clear();
+		uint count = file->readNumber();
+
+		for (uint idx = 0; idx < count; ++idx) {
+			// Validate the class start header
+			if (!file->IsClassStart())
+				error("Unexpected class end");
+
+			// Get item's class name and use it to instantiate an item
+			CString className = file->readString();
+			T *newItem = dynamic_cast<T *>(CSaveableObject::createInstance(className));
+			if (!newItem)
+				error("Could not create instance of %s", className.c_str());
+
+			// Load the item's data and add it to the list
+			newItem->load(file);
+			Common::List<T *>::push_back(newItem);
+
+			// Validate the class end footer
+			if (file->IsClassStart())
+				error("Unexpected class start");
+		}
+	}
+
+	/**
+	 * Clear the list and destroy any items in it
+	 */
+	void destroyContents() {
+		for (Common::List<T *>::iterator i = Common::List<T *>::begin(); 
+				i != Common::List<T *>::end(); ++i) {
+			CSaveableObject *obj = *i;
+			delete obj;
+		}
+
+		Common::List<T *>::clear();
+	}
+
+	/**
+	 * Add a new item to the list of the type the list contains
+	 */
+	T *List::add() {
+		T *item = new T();
+		Common::List<T *>::push_back(item);
+		return item;
+	}
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_LIST_H */