/** 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}));
}
}
private GeoElement[] processList(ExpressionNode n, MyList evalList) {
String label = n.getLabel();
GeoElement[] ret = new GeoElement[1];
// no operations or no variables are present, e.g.
// { a, b, 7 } or { 2, 3, 5 } + {1, 2, 4}
if (!n.hasOperations() || n.isConstant()) {
// PROCESS list items to generate a list of geoElements
ArrayList<GeoElement> geoElements = new ArrayList<GeoElement>();
boolean isIndependent = true;
// make sure we don't create any labels for the list elements
boolean oldMacroMode = cons.isSuppressLabelsActive();
cons.setSuppressLabelCreation(true);
int size = evalList.size();
for (int i = 0; i < size; i++) {
ExpressionNode en = (ExpressionNode) evalList.getListElement(i);
// we only take one resulting object
GeoElement[] results = processExpressionNode(en);
GeoElement geo = results[0];
// add to list
geoElements.add(geo);
if (geo.isLabelSet() || !geo.isIndependent()) isIndependent = false;
}
cons.setSuppressLabelCreation(oldMacroMode);
// Create GeoList object
ret[0] = kernel.List(label, geoElements, isIndependent);
}
// operations and variables are present
// e.g. {3, 2, 1} + {a, b, 2}
else {
ret[0] = kernel.ListExpression(label, n);
}
return ret;
}
/** adds a new element to the list */
public final void add(GeoElement geo) {
if (!geo.isLabelSet() || !geo.hasProperties()) return;
// get type node
String typeString = geo.getObjectType();
DefaultMutableTreeNode typeNode = typeNodesMap.get(typeString);
// init type node
boolean initing = typeNode == null;
if (initing) {
String transTypeString = geo.translatedTypeString();
typeNode = new DefaultMutableTreeNode(transTypeString);
typeNodesMap.put(typeString, typeNode);
// find insert pos
int pos = root.getChildCount();
for (int i = 0; i < pos; i++) {
DefaultMutableTreeNode child = (DefaultMutableTreeNode) root.getChildAt(i);
if (transTypeString.compareTo(child.toString()) < 0) {
pos = i;
break;
}
}
treeModel.insertNodeInto(typeNode, root, pos);
}
// check if already present in type node
int pos = AlgebraView.binarySearchGeo(typeNode, geo.getLabel());
if (pos >= 0) return;
// add geo to type node
DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(geo);
pos = AlgebraView.getInsertPosition(typeNode, geo, AlgebraView.SortMode.DEPENDENCY);
treeModel.insertNodeInto(newNode, typeNode, pos);
// make sure something is selected
if (getSelectionModel().isSelectionEmpty()) {
selectFirstElement();
}
}
/**
* processes valid expression.
*
* @param ve
* @param redefineIndependent == true: independent objects are redefined too
* @throws MyError
* @throws Exception
* @return
*/
public GeoElement[] processValidExpression(ValidExpression ve, boolean redefineIndependent)
throws MyError, Exception {
// check for existing labels
String[] labels = ve.getLabels();
GeoElement replaceable = null;
if (labels != null && labels.length > 0) {
boolean firstTime = true;
for (int i = 0; i < labels.length; i++) {
GeoElement geo = kernel.lookupLabel(labels[i]);
if (geo != null) {
if (geo.isFixed()) {
String[] strs = {
"IllegalAssignment", "AssignmentToFixed", ":\n", geo.getLongDescription()
};
throw new MyError(app, strs);
} else {
// replace (overwrite or redefine) geo
if (firstTime) { // only one geo can be replaced
replaceable = geo;
firstTime = false;
}
}
}
}
}
GeoElement[] ret;
boolean oldMacroMode = cons.isSuppressLabelsActive();
if (replaceable != null) cons.setSuppressLabelCreation(true);
// we have to make sure that the macro mode is
// set back at the end
try {
ret = doProcessValidExpression(ve);
if (ret == null) { // eg (1,2,3) running in 2D
Application.debug("Unhandled ValidExpression : " + ve);
throw new MyError(app, app.getError("InvalidInput") + ":\n" + ve);
}
} finally {
cons.setSuppressLabelCreation(oldMacroMode);
}
// try to replace replaceable geo by ret[0]
if (replaceable != null && ret != null && ret.length > 0) {
// a changeable replaceable is not redefined:
// it gets the value of ret[0]
// (note: texts are always redefined)
if (!redefineIndependent && replaceable.isChangeable() && !(replaceable.isGeoText())) {
try {
replaceable.set(ret[0]);
replaceable.updateRepaint();
ret[0] = replaceable;
} catch (Exception e) {
String errStr =
app.getError("IllegalAssignment")
+ "\n"
+ replaceable.getLongDescription()
+ " = "
+ ret[0].getLongDescription();
throw new MyError(app, errStr);
}
}
// redefine
else {
try {
// SPECIAL CASE: set value
// new and old object are both independent and have same type:
// simply assign value and don't redefine
if (replaceable.isIndependent()
&& ret[0].isIndependent()
&& replaceable.getGeoClassType() == ret[0].getGeoClassType()) {
replaceable.set(ret[0]);
replaceable.updateRepaint();
ret[0] = replaceable;
}
// STANDARD CASE: REDFINED
else {
GeoElement newGeo = ret[0];
cons.replace(replaceable, newGeo);
// now all objects have changed
// get the new object with same label as our result
String newLabel = newGeo.isLabelSet() ? newGeo.getLabel() : replaceable.getLabel();
ret[0] = kernel.lookupLabel(newLabel, false);
}
} catch (CircularDefinitionException e) {
throw e;
} catch (Exception e) {
e.printStackTrace();
throw new MyError(app, "ReplaceFailed");
} catch (MyError e) {
e.printStackTrace();
throw new MyError(app, "ReplaceFailed");
}
}
}
return ret;
}