/**
* Builds up the tree showing the layers
*
* @param mapModel The mapModel containing the layerTree
*/
private void buildTree(MapModel mapModel) {
treeGrid.setWidth100();
treeGrid.setHeight100();
treeGrid.setShowHeader(false);
tree = new RefreshableTree();
final TreeNode nodeRoot = new TreeNode("ROOT");
tree.setRoot(nodeRoot); // invisible ROOT node (ROOT node is required)
ClientLayerTreeInfo layerTreeInfo = mapModel.getMapInfo().getLayerTree();
if (layerTreeInfo != null) {
ClientLayerTreeNodeInfo treeNode = layerTreeInfo.getTreeNode();
processNode(treeNode, nodeRoot, tree, mapModel, false);
}
treeGrid.setData(tree);
treeGrid.addLeafClickHandler(this);
treeGrid.addFolderClickHandler(this);
// -- add event listeners to layers
for (Layer<?> layer : mapModel.getLayers()) {
registrations.add(
layer.addLayerChangedHandler(
new LayerChangedHandler() {
public void onLabelChange(LayerLabeledEvent event) {}
public void onVisibleChange(LayerShownEvent event) {
for (TreeNode node : tree.getAllNodes()) {
if (node.getName().equals(event.getLayer().getLabel())) {
if (node instanceof LayerTreeTreeNode) {
((LayerTreeTreeNode) node).updateIcon();
}
}
}
}
}));
}
}
/**
* Constructor creates a TreeNode with layer.getLabel as label.
*
* @param tree tree for node
* @param layer The layer object
*/
public LayerTreeTreeNode(RefreshableTree tree, Layer<?> layer) {
super(layer.getLabel());
this.layer = layer;
this.tree = tree;
updateIcon();
}