Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/map/WMSLayersTree.java @ 5462:f2371f3aaf03
Show top level folder icons only if node has no factory
If you have an empty folder the folder icon is still shown.
This makes it possible to add functional "Top Level" entries
in the Datacage
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Tue, 26 Mar 2013 18:29:13 +0100 |
parents | 0de61fc9d281 |
children |
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package de.intevation.flys.client.client.ui.map; import java.util.ArrayList; import java.util.List; import com.google.gwt.core.client.GWT; import com.smartgwt.client.types.TreeModelType; import com.smartgwt.client.widgets.tree.Tree; import com.smartgwt.client.widgets.tree.TreeGrid; import com.smartgwt.client.widgets.tree.TreeNode; import de.intevation.flys.client.shared.model.Capabilities; import de.intevation.flys.client.shared.model.WMSLayer; public class WMSLayersTree extends TreeGrid { /** * An internal TreeNode that stores besides some string attribute a WMSLayer * object. */ public static class WMSLayerNode extends TreeNode { protected WMSLayer wms; public WMSLayerNode(WMSLayer wms) { super(); this.wms = wms; setAttribute("name", wms.getName()); setAttribute("title", wms.getTitle()); } public WMSLayer getWMSLayer() { return wms; } } // end of class WMSLayerNode protected Capabilities capabilites; protected String srs; public WMSLayersTree(Capabilities capabilites) { super(); this.capabilites = capabilites; initTree(); } public WMSLayersTree(Capabilities capabilites, String srs) { super(); this.capabilites = capabilites; this.srs = srs; initTree(); } protected void initTree() { setLoadDataOnDemand(false); setWidth100(); setHeight100(); setShowRoot(false); setShowConnectors(true); setNodeIcon("[SKIN]/images/blank.gif"); Tree tree = new Tree(); tree.setChildrenProperty("children-nodes"); tree.setNameProperty("title"); tree.setIdField("title"); tree.setModelType(TreeModelType.CHILDREN); tree.setShowRoot(false); TreeNode root = new TreeNode("Root"); TreeNode[] layers = buildTree(capabilites.getLayers()); root.setAttribute("children-nodes", layers); tree.setRoot(root); setData(tree); if (layers != null && layers.length == 1) { tree.openFolder(layers[0]); } } protected TreeNode[] buildTree(List<WMSLayer> layers) { List<TreeNode> layerNodes = new ArrayList<TreeNode>(); for (WMSLayer layer: layers) { WMSLayerNode tn = buildTreeNode(layer); if (tn != null) { TreeNode[] tns = buildTree(layer.getLayers()); if (tns != null && tns.length > 0) { tn.setAttribute("children-nodes", tns); } layerNodes.add(tn); } } return layerNodes.toArray(new TreeNode[layerNodes.size()]); } protected WMSLayerNode buildTreeNode(WMSLayer wms) { if (srs != null && srs.length() > 0) { return wms.supportsSrs(srs) ? new WMSLayerNode(wms) : null; } else { GWT.log("No target SRS specified."); return new WMSLayerNode(wms); } } }