/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.ims.qti.editor.tree;
import org.olat.core.gui.components.tree.GenericTreeModel;
import org.olat.core.gui.components.tree.GenericTreeNode;
import org.olat.core.gui.components.tree.TreeModel;
import org.olat.core.gui.components.tree.TreeNode;
import org.olat.course.tree.TreePosition;
/**
* Initial Date: Jan 05, 2005 <br>
*
* @author mike
*/
public class InsertItemTreeModel extends GenericTreeModel {
/**
* Comment for <code>INSTANCE_ASSESSMENT</code>
*/
public static final int INSTANCE_ASSESSMENT = 0;
/**
* Comment for <code>INSTANCE_SECTION</code>
*/
public static final int INSTANCE_SECTION = 1;
/**
* Comment for <code>INSTANCE_ASSESSMENT</code>
*/
public static final int INSTANCE_ITEM = 2;
private int appendToInstancesOf;
/**
* @param treeModel
* @param appendToInstancesOf
*/
public InsertItemTreeModel(TreeModel treeModel, int appendToInstancesOf) {
this.appendToInstancesOf = appendToInstancesOf;
GenericQtiNode cnRoot = (GenericQtiNode) treeModel.getRootNode();
TreeNode ctn = buildNode(cnRoot);
setRootNode(ctn);
}
private TreeNode buildNode(GenericQtiNode parent) {
int parentInstance = INSTANCE_ASSESSMENT;
if (parent instanceof SectionNode) parentInstance = INSTANCE_SECTION;
if (parent instanceof ItemNode) parentInstance = INSTANCE_ITEM;
GenericTreeNode ctn = new GenericTreeNode(parent.getTitle(), parent);
ctn.setIconCssClass(parent.getIconCssClass());
ctn.setAccessible(false);
int childcnt = parent.getChildCount();
for (int i = 0; i < childcnt; i++) {
if (parentInstance == appendToInstancesOf) { // add insert pos
GenericTreeNode gtn = new GenericTreeNode();
gtn.setAccessible(true);
gtn.setTitle("");
gtn.setAltText("");
gtn.setUserObject(new TreePosition(parent, i));
ctn.addChild(gtn);
}
// add child itself
GenericQtiNode cchild = (GenericQtiNode) parent.getChildAt(i);
TreeNode ctchild = buildNode(cchild);
ctn.addChild(ctchild);
}
if (parentInstance == appendToInstancesOf) {
// add last insert position
GenericTreeNode gtn = new GenericTreeNode();
gtn.setAccessible(true);
gtn.setTitle("");
gtn.setAltText("");
gtn.setUserObject(new TreePosition(parent, childcnt));
ctn.addChild(gtn);
}
return ctn;
}
/**
* @param nodeId
* @return TreePosition
*/
public TreePosition getTreePosition(String nodeId) {
TreeNode n = getNodeById(nodeId);
GenericTreeNode gtn = (GenericTreeNode) n;
TreePosition tp = (TreePosition) gtn.getUserObject();
return tp;
}
}