/**
* Assigns the tree viewer that I control.
*
* @param tree my tree viewer
*/
void setTreeViewer(final TreeViewer tree) {
if (this.tree != null) {
this.tree.removeSelectionChangedListener(this);
}
this.tree = tree;
if (this.tree != null) {
this.tree.addSelectionChangedListener(this);
this.tree.setInput(workspace.getWorkingSets());
if (!workspace.getWorkingSets().isEmpty()) {
tree.getTree()
.getDisplay()
.asyncExec(
new Runnable() {
public void run() {
Object initialSelection;
ITreeContentProvider content = (ITreeContentProvider) tree.getContentProvider();
if ((initialWorkingSet != null)
&& Arrays.asList(content.getElements(tree.getInput()))
.contains(initialWorkingSet)) {
initialSelection = initialWorkingSet;
} else {
// we have a most-recently-used working set. Just
// take the first in tree order
initialSelection = tree.getTree().getItem(0).getData();
}
Object[] children = content.getChildren(initialSelection);
IStructuredSelection sel;
if ((children == null) || (children.length == 0)) {
// Shouldn't happen: there should at least be the
// read-only config.
// Can only select the initial working set
sel = new StructuredSelection(initialSelection);
} else {
Object[] toSort = new Object[children.length];
System.arraycopy(children, 0, toSort, 0, children.length);
tree.getComparator().sort(tree, toSort);
sel = new StructuredSelection(toSort[0]);
}
// make the selection
tree.setSelection(sel, true);
}
});
}
}
}
/**
* Updates the display to reflect potential changes in project activation and the resulting
* changes in working-set config activation, if any.
*/
private void updateForActivation() {
// update all working-set configs that intersect this config
Collection<IWorkingSetProxy.ISnapshot> unaffectedWorkingSets =
new java.util.HashSet<IWorkingSetProxy.ISnapshot>(workspace.getWorkingSets());
for (IProject project : currentConfig.getWorkingSet().resolveProjects()) {
for (Iterator<IWorkingSetProxy.ISnapshot> iter = unaffectedWorkingSets.iterator();
iter.hasNext(); ) {
IWorkingSetProxy.ISnapshot next = iter.next();
if (next.resolveProjects().contains(project)) {
iter.remove();
if (next.updateActiveConfigurations()) {
// major change. Refresh it altogether
tree.refresh(next);
} else {
// lighter-weight updates of its configs
for (IWorkingSetConfiguration config : next.getConfigurations()) {
tree.update(config, null);
}
}
}
}
}
updateButtons();
}
