/**
* Restores the checked state of items based on the cached check state. This will only check leaf
* nodes, but parent items will be updated by the container viewer. No events will be fired.
*/
public void restoreLeafCheckState() {
if (checkState == null) return;
getTree().setRedraw(false);
// Call the super class so we don't mess up the cache
super.setCheckedElements(new Object[0]);
setGrayedElements(new Object[0]);
// Now we are only going to set the check state of the leaf nodes
// and rely on our container checked code to update the parents properly.
Iterator iter = checkState.iterator();
Object element = null;
if (iter.hasNext()) expandAll();
while (iter.hasNext()) {
element = iter.next();
// Call the super class as there is no need to update the check state
super.setChecked(element, true);
}
getTree().setRedraw(true);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.CheckboxTreeViewer#setCheckedElements(java.lang.Object[])
*/
public void setCheckedElements(Object[] elements) {
super.setCheckedElements(elements);
checkState.clear();
ITreeContentProvider contentProvider = null;
if (getContentProvider() instanceof ITreeContentProvider) {
contentProvider = (ITreeContentProvider) getContentProvider();
}
for (int i = 0; i < elements.length; i++) {
Object[] children = contentProvider != null ? contentProvider.getChildren(elements[i]) : null;
if (!getGrayed(elements[i]) && (children == null || children.length == 0)) {
if (!checkState.contains(elements[i])) {
checkState.add(elements[i]);
}
}
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.AbstractTreeViewer#remove(java.lang.Object)
*/
public void remove(Object elementsOrTreePaths) {
updateCheckState(elementsOrTreePaths, false);
super.remove(elementsOrTreePaths);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.AbstractTreeViewer#remove(java.lang.Object[])
*/
public void remove(Object[] elementsOrTreePaths) {
for (int i = 0; i < elementsOrTreePaths.length; i++) {
updateCheckState(elementsOrTreePaths[i], false);
}
super.remove(elementsOrTreePaths);
}
