/** @see IFigure#setConstraint(IFigure, Object) */
public void setConstraint(IFigure child, Object constraint) {
if (child.getParent() != this)
throw new IllegalArgumentException("Figure must be a child"); // $NON-NLS-1$
if (layoutManager != null) layoutManager.setConstraint(child, constraint);
revalidate();
}
/**
* Removes the given child Figure from this Figure's hierarchy and revalidates this Figure. The
* child Figure's {@link #removeNotify()} method is also called.
*
* @param figure The Figure to remove
*/
public void remove(IFigure figure) {
if ((figure.getParent() != this))
throw new IllegalArgumentException("Figure is not a child"); // $NON-NLS-1$
if (getFlag(FLAG_REALIZED)) figure.removeNotify();
if (layoutManager != null) layoutManager.remove(figure);
// The updates in the UpdateManager *have* to be
// done asynchronously, else will result in
// incorrect dirty region corrections.
figure.erase();
figure.setParent(null);
children.remove(figure);
revalidate();
}
/** @see IFigure#add(IFigure, Object, int) */
public void add(IFigure figure, Object constraint, int index) {
if (children == Collections.EMPTY_LIST) children = new ArrayList(2);
if (index < -1 || index > children.size())
throw new IndexOutOfBoundsException("Index does not exist"); // $NON-NLS-1$
// Check for Cycle in hierarchy
for (IFigure f = this; f != null; f = f.getParent())
if (figure == f)
throw new IllegalArgumentException("Figure being added introduces cycle"); // $NON-NLS-1$
// Detach the child from previous parent
if (figure.getParent() != null) figure.getParent().remove(figure);
if (index == -1) children.add(figure);
else children.add(index, figure);
figure.setParent(this);
if (layoutManager != null) layoutManager.setConstraint(figure, constraint);
revalidate();
if (getFlag(FLAG_REALIZED)) figure.addNotify();
figure.repaint();
}
