/** adds a new node to the tree */
public void add(GeoElement geo) {
cancelEditing();
if (geo.isLabelSet() && geo.showInAlgebraView() && geo.isSetAlgebraVisible()) {
// don't add auxiliary objects if the tree is categorized by type
if (!getTreeMode().equals(SortMode.DEPENDENCY)
&& !showAuxiliaryObjects()
&& geo.isAuxiliaryObject()) {
return;
}
DefaultMutableTreeNode parent, node;
node = new DefaultMutableTreeNode(geo);
parent = getParentNode(geo);
// add node to model (alphabetically ordered)
int pos = getInsertPosition(parent, geo, treeMode);
model.insertNodeInto(node, parent, pos);
nodeTable.put(geo, node);
// ensure that the leaf with the new object is visible
expandPath(new TreePath(new Object[] {model.getRoot(), parent}));
}
}
/**
* @param geo
* @return parent node of this geo
*/
protected DefaultMutableTreeNode getParentNode(GeoElement geo) {
DefaultMutableTreeNode parent;
switch (treeMode) {
case DEPENDENCY:
if (geo.isAuxiliaryObject()) {
parent = auxiliaryNode;
} else if (geo.isIndependent()) {
parent = indNode;
} else {
parent = depNode;
}
break;
case TYPE:
// get type node
String typeString = geo.getObjectType();
parent = (DefaultMutableTreeNode) typeNodesMap.get(typeString);
// do we have to create the parent node?
if (parent == null) {
String transTypeString = geo.translatedTypeString();
parent = new DefaultMutableTreeNode(transTypeString);
typeNodesMap.put(typeString, parent);
// find insert pos
int pos = rootType.getChildCount();
for (int i = 0; i < pos; i++) {
DefaultMutableTreeNode child = (DefaultMutableTreeNode) rootType.getChildAt(i);
if (transTypeString.compareTo(child.toString()) < 0) {
pos = i;
break;
}
}
model.insertNodeInto(parent, rootType, pos);
}
break;
case LAYER:
// get type node
int layer = geo.getLayer();
parent = (DefaultMutableTreeNode) layerNodesMap.get(layer);
// do we have to create the parent node?
if (parent == null) {
String layerStr = layer + "";
parent = new DefaultMutableTreeNode(layer);
layerNodesMap.put(layer, parent);
// find insert pos
int pos = rootLayer.getChildCount();
for (int i = 0; i < pos; i++) {
DefaultMutableTreeNode child = (DefaultMutableTreeNode) rootLayer.getChildAt(i);
if (layerStr.compareTo(child.toString()) < 0) {
pos = i;
break;
}
}
model.insertNodeInto(parent, rootLayer, pos);
}
break;
case ORDER:
parent = rootOrder;
break;
default:
parent = null;
}
return parent;
}