/**
* Set the currently selected Variable.
*
* @param v select this Variable, must be already in the tree.
*/
public void setSelected(VariableIF v) {
if (v == null) return;
// construct chain of variables
List<VariableIF> vchain = new ArrayList<>();
vchain.add(v);
VariableIF vp = v;
while (vp.isMemberOfStructure()) {
vp = vp.getParentStructure();
vchain.add(0, vp); // reverse
}
// construct chain of groups
List<Group> gchain = new ArrayList<>();
Group gp = vp.getParentGroup();
gchain.add(gp);
while (gp.getParentGroup() != null) {
gp = gp.getParentGroup();
gchain.add(0, gp); // reverse
}
List<Object> pathList = new ArrayList<>();
// start at root, work down through the nested groups, if any
GroupNode gnode = (GroupNode) model.getRoot();
pathList.add(gnode);
Group parentGroup = gchain.get(0); // always the root group
for (int i = 1; i < gchain.size(); i++) {
parentGroup = gchain.get(i);
gnode = gnode.findNestedGroup(parentGroup);
assert gnode != null;
pathList.add(gnode);
}
vp = vchain.get(0);
VariableNode vnode = gnode.findNestedVariable(vp);
if (vnode == null) return; // not found
pathList.add(vnode);
// now work down through the structure members, if any
for (int i = 1; i < vchain.size(); i++) {
vp = vchain.get(i);
vnode = vnode.findNestedVariable(vp);
if (vnode == null) return; // not found
pathList.add(vnode);
}
// convert to TreePath, and select it
Object[] paths = pathList.toArray();
TreePath treePath = new TreePath(paths);
tree.setSelectionPath(treePath);
tree.scrollPathToVisible(treePath);
}
