Initial commit

engines/titanic/core/tree_item.cpp

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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/>.
+ *
+ */
+
+#include "titanic/core/tree_item.h"
+#include "titanic/core/dont_save_file_item.h"
+#include "titanic/core/file_item.h"
+#include "titanic/core/game_object.h"
+#include "titanic/core/game_object_desc_item.h"
+#include "titanic/core/link_item.h"
+#include "titanic/core/mail_man.h"
+#include "titanic/core/named_item.h"
+#include "titanic/core/node_item.h"
+#include "titanic/core/project_item.h"
+#include "titanic/core/view_item.h"
+#include "titanic/core/room_item.h"
+#include "titanic/pet_control/pet_control.h"
+#include "titanic/game_manager.h"
+#include "titanic/game/placeholder/place_holder.h"
+
+namespace Titanic {
+
+EMPTY_MESSAGE_MAP(CTreeItem, CMessageTarget);
+
+CTreeItem::CTreeItem() : _parent(nullptr), _firstChild(nullptr),
+	_nextSibling(nullptr), _priorSibling(nullptr), _field14(0) {
+}
+
+void CTreeItem::dump(int indent) {
+	CString line = dumpItem(indent);
+	debug("%s", line.c_str());
+
+	CTreeItem *item = getFirstChild();
+	while (item) {
+		item->dump(indent + 1);
+
+		item = item->getNextSibling();
+	}
+}
+
+CString CTreeItem::dumpItem(int indent) const {
+	CString result;
+	for (int idx = 0; idx < indent; ++idx)
+		result += '\t';
+	result += getType()->_className;
+
+	return result;
+}
+
+void CTreeItem::save(SimpleFile *file, int indent) {
+	file->writeNumberLine(0, indent);
+	CMessageTarget::save(file, indent);
+}
+
+void CTreeItem::load(SimpleFile *file) {
+	file->readNumber();
+	CMessageTarget::load(file);
+}
+
+bool CTreeItem::isFileItem() const {
+	return isInstanceOf(CFileItem::_type);
+}
+
+bool CTreeItem::isRoomItem() const {
+	return isInstanceOf(CRoomItem::_type);
+}
+
+bool CTreeItem::isNodeItem() const {
+	return isInstanceOf(CNodeItem::_type);
+}
+
+bool CTreeItem::isViewItem() const {
+	return isInstanceOf(CViewItem::_type);
+}
+
+bool CTreeItem::isLinkItem() const {
+	return isInstanceOf(CLinkItem::_type);
+}
+
+bool CTreeItem::isPlaceHolderItem() const {
+	return isInstanceOf(CPlaceHolder::_type);
+}
+
+bool CTreeItem::isNamedItem() const {
+	return isInstanceOf(CNamedItem::_type);
+}
+
+bool CTreeItem::isGameObject() const {
+	return isInstanceOf(CGameObject::_type);
+}
+
+bool CTreeItem::isGameObjectDescItem() const {
+	return isInstanceOf(CGameObjectDescItem::_type);
+}
+
+CGameManager *CTreeItem::getGameManager() const {
+	return _parent ? _parent->getGameManager() : nullptr;
+}
+
+CProjectItem *CTreeItem::getRoot() const {
+	CTreeItem *parent = getParent();
+
+	if (parent) {
+		do {
+			parent = parent->getParent();
+		} while (parent->getParent());
+	}
+
+	return dynamic_cast<CProjectItem *>(parent);
+}
+
+CTreeItem *CTreeItem::getLastSibling() {
+	CTreeItem *item = this;
+	while (item->getNextSibling())
+		item = item->getNextSibling();
+
+	return item;
+}
+
+CTreeItem *CTreeItem::getLastChild() const {
+	if (!_firstChild)
+		return nullptr;
+	return _firstChild->getLastSibling();
+}
+
+CTreeItem *CTreeItem::scan(CTreeItem *item) const {
+	if (_firstChild)
+		return _firstChild;
+
+	const CTreeItem *treeItem = this;
+	while (treeItem != item) {
+		if (treeItem->_nextSibling)
+			return treeItem->_nextSibling;
+
+		treeItem = treeItem->_parent;
+		if (!treeItem)
+			break;
+	}
+
+	return nullptr;
+}
+
+CTreeItem *CTreeItem::findChildInstanceOf(ClassDef *classDef) const {
+	for (CTreeItem *treeItem = _firstChild; treeItem; treeItem = treeItem->getNextSibling()) {
+		if (treeItem->isInstanceOf(classDef))
+			return treeItem;
+	}
+
+	return nullptr;
+}
+
+CTreeItem *CTreeItem::findNextInstanceOf(ClassDef *classDef, CTreeItem *startItem) const {
+	CTreeItem *treeItem = startItem ? startItem->getNextSibling() : getFirstChild();
+
+	for (; treeItem; treeItem = treeItem->getNextSibling()) {
+		if (treeItem->isInstanceOf(classDef))
+			return treeItem;
+	}
+
+	return nullptr;
+}
+
+void CTreeItem::addUnder(CTreeItem *newParent) {
+	if (newParent->_firstChild)
+		addSibling(newParent->_firstChild->getLastSibling());
+	else
+		setParent(newParent);
+}
+
+void CTreeItem::setParent(CTreeItem *newParent) {
+	_parent = newParent;
+	_priorSibling = nullptr;
+	_nextSibling = newParent->_firstChild;
+
+	if (newParent->_firstChild)
+		newParent->_firstChild->_priorSibling = this;
+	newParent->_firstChild = this;
+}
+
+void CTreeItem::addSibling(CTreeItem *item) {
+	_priorSibling = item;
+	_nextSibling = item->_nextSibling;
+	_parent = item->_parent;
+
+	if (item->_nextSibling)
+		item->_nextSibling->_priorSibling = this;
+	item->_nextSibling = this;
+}
+
+void CTreeItem::moveUnder(CTreeItem *newParent) {
+	if (newParent) {
+		detach();
+		addUnder(newParent);
+	}
+}
+
+void CTreeItem::destroyAll() {
+	destroyChildren();
+	detach();
+	delete this;
+}
+
+int CTreeItem::destroyChildren() {
+	if (!_firstChild)
+		return 0;
+
+	CTreeItem *item = _firstChild, *child, *nextSibling;
+	int total = 0;
+
+	do {
+		child = item->_firstChild;
+		nextSibling = item->_nextSibling;
+
+		if (child)
+			total += item->destroyChildren();
+		item->detach();
+		delete item;
+		++total;
+	} while ((item = nextSibling) != nullptr);
+
+	return total;
+}
+
+void CTreeItem::detach() {
+	// Delink this item from any prior and/or next siblings
+	if (_priorSibling)
+		_priorSibling->_nextSibling = _nextSibling;
+	if (_nextSibling)
+		_nextSibling->_priorSibling = _priorSibling;
+
+	if (_parent && _parent->_firstChild == this)
+		_parent->_firstChild = _nextSibling;
+
+	_priorSibling = _nextSibling = _parent = nullptr;
+}
+
+void CTreeItem::attach(CTreeItem *item) {
+	_nextSibling = item;
+	_priorSibling = item->_priorSibling;
+	_parent = item->_parent;
+
+	if (item->_priorSibling)
+		item->_priorSibling->_nextSibling = this;
+
+	item->_priorSibling = this;
+	if (item->_parent && !item->_parent->_firstChild)
+		item->_parent->_firstChild = this;
+}
+
+CNamedItem *CTreeItem::findByName(const CString &name, bool subMatch) {
+	CString nameLower = name;
+	nameLower.toLowercase();
+
+	for (CTreeItem *treeItem = this; treeItem; treeItem = treeItem->scan(this)) {
+		CString itemName = treeItem->getName();
+		itemName.toLowercase();
+
+		if (subMatch) {
+			if (!itemName.left(nameLower.size()).compareTo(nameLower))
+				return dynamic_cast<CNamedItem *>(treeItem);
+		} else {
+			if (!itemName.compareTo(nameLower))
+				return dynamic_cast<CNamedItem *>(treeItem);
+		}
+	}
+
+	return nullptr;
+}
+
+} // End of namespace Titanic