/**
* Deselects all graph cells that have the same userObject as specified in the parameter.
*
* @param root The graph cell whose userObject will be considered.
*/
private void removeAll(Object root) {
if (root != null) {
if (root instanceof DefaultGraphCell) {
// the cell is a DefaultGraphCell
DefaultGraphCell rootCell = (DefaultGraphCell) root;
// get all graph cells that have the same userObject like the rootCell
List<Object> list = getCellsWithUserObject(rootCell);
if (list != null) {
// deselect all the graph cells with the same userObject
graph.getSelectionModel().removeSelectionCells(list.toArray());
}
}
}
}
/**
* Returns an list containing all graph cells taht have the same userObject.
*
* @param userObject The userObject for which all graph cels should be found.
* @return java.util.List
*/
private List<Object> getCellsWithUserObject(Object userObject) {
List<Object> cells = new ArrayList<Object>();
if (userObject != null) {
// get the graph model, which contains all the cells of the graph
GraphModel model = graph.getModel();
// loop through all the cells of the model
for (int i = 0; i < model.getRootCount(); i++) {
Object root = model.getRootAt(i);
// get the userObject for the curent graph cell
Object rootUserObject = getUserObject(root);
if (rootUserObject != null) {
if (userObject == rootUserObject) {
// the userObject of the current graph cell is teh same like the wanted userObject
cells.add(root);
}
}
}
}
return cells;
}
/**
* Cretes a new instance for the specified graph. Assignes self as a listener for the graph.
*
* @param aGraph The graph that is listened to.
*/
public DGraphSelectionListener(DGraph aGraph) {
graph = aGraph;
graph.getSelectionModel().addGraphSelectionListener(this);
}