List of usage examples for com.google.gwt.user.client.ui TreeItem getChild
public TreeItem getChild(int index)
From source file:net.husoftware.client.spike.DragDropLabel.java
License:Open Source License
private void initDrop() { addDomHandler(new DragOverHandler() { @Override// ww w . j ava 2s. co m public void onDragOver(DragOverEvent event) { addStyleName("dropping"); } }, DragOverEvent.getType()); addDomHandler(new DragLeaveHandler() { @Override public void onDragLeave(DragLeaveEvent event) { removeStyleName("dropping"); } }, DragLeaveEvent.getType()); addDomHandler(new DropHandler() { @Override public void onDrop(DropEvent event) { event.preventDefault(); if (dragging != null) { // Target treeitem is found via 'this'; // Dragged treeitem is found via 'dragging'. TreeItem dragTarget = null; TreeItem dragSource = null; // The parent of 'this' is not the TreeItem, as that's not a Widget. // The parent is the tree containing the treeitem. Tree tree = (Tree) DragDropLabel.this.getParent(); // Visit the entire tree, searching for the drag and drop TreeItems List<TreeItem> stack = new ArrayList<TreeItem>(); stack.add(tree.getItem(0)); while (!stack.isEmpty()) { TreeItem item = stack.remove(0); for (int i = 0; i < item.getChildCount(); i++) { stack.add(item.getChild(i)); } Widget w = item.getWidget(); if (w != null) { if (w == dragging) { dragSource = item; if (dragTarget != null) { break; } } if (w == DragDropLabel.this) { dragTarget = item; w.removeStyleName("dropping"); if (dragSource != null) { break; } } } } // Do we have a source and a target? if (dragSource != null && dragTarget != null) { // Make sure that target is not a child of dragSource TreeItem test = dragTarget; while (test != null) { if (test == dragSource) { return; } test = test.getParentItem(); } // Move the dragged item (source) under the target. dragTarget.addItem(dragSource); // Make sure the the target treeitem is open. dragTarget.setState(true); } dragging = null; } } }, DropEvent.getType()); }
From source file:net.husoftware.client.spike.DragDropTree.java
License:Open Source License
@Override public void onModuleLoad() { Tree tree = new Tree(); RootPanel.get("main").add(tree); // root is not draggable. TreeItem treeItem = new TreeItem(new DragDropLabel("root", false, true)); tree.addItem(treeItem);/*from www .j a va 2 s. c om*/ // Add some folders treeItem.addItem(new DragDropLabel("folder1", true, true)); treeItem.addItem(new DragDropLabel("folder2", true, true)); TreeItem folder3 = treeItem.addItem(new DragDropLabel("folder3", true, true)); folder3.addItem(new DragDropLabel("folder3-1", true, true)); folder3.addItem(new DragDropLabel("folder3-2", true, true)); // Add some leaves to the tree List<TreeItem> stack = new ArrayList<TreeItem>(); stack.add(tree.getItem(0)); int filenum = 1; while (!stack.isEmpty()) { TreeItem item = stack.remove(0); for (int i = 0; i < item.getChildCount(); i++) { stack.add(item.getChild(i)); } int files = Random.nextInt(4) + 1; for (int j = 0; j < files; j++) { item.addItem(new TreeItem(new DragDropLabel("File " + filenum, true, false))); filenum++; } item.setState(true); } }
From source file:net.s17fabu.vip.gwt.showcase.client.content.lists.CwTree.java
License:Apache License
/** * Create a dynamic tree that will add a random number of children to each * node as it is clicked./*from w w w . j av a 2 s . c o m*/ * * @return the new tree */ private Tree createDynamicTree() { // Create a new tree Tree dynamicTree = new Tree(); // Add some default tree items for (int i = 0; i < 5; i++) { TreeItem item = dynamicTree.addItem(constants.cwTreeItem() + " " + i); // Temporarily add an item so we can expand this node item.addItem(""); } // Add a handler that automatically generates some children dynamicTree.addOpenHandler(new OpenHandler<TreeItem>() { public void onOpen(OpenEvent<TreeItem> event) { TreeItem item = event.getTarget(); if (item.getChildCount() == 1) { // Close the item immediately item.setState(false, false); // Add a random number of children to the item String itemText = item.getText(); int numChildren = Random.nextInt(5) + 2; for (int i = 0; i < numChildren; i++) { TreeItem child = item.addItem(itemText + "." + i); child.addItem(""); } // Remove the temporary item when we finish loading item.getChild(0).remove(); // Reopen the item item.setState(true, false); } } }); // Return the tree return dynamicTree; }
From source file:nz.org.winters.appspot.acrareporter.client.ui.ACRAReportView.java
License:Apache License
private void recurseAddItem(TreeItem current, String[] items, int itemIndex) { if (itemIndex < items.length) { String looking = items[itemIndex]; for (int i = 0; i < current.getChildCount(); i++) { TreeItem child = current.getChild(i); if (child.getText().equalsIgnoreCase(looking)) { recurseAddItem(child, items, ++itemIndex); child.setState(true);//from w w w. ja v a 2s . c o m return; } } TreeItem child = current.addTextItem(items[itemIndex]); recurseAddItem(child, items, ++itemIndex); child.setState(true); } }
From source file:org.aksw.TripleCheckMate.client.widgets.EvaluationItemDialog.java
License:Apache License
private void treeCloseAll(TreeItem ti) { if (ti == null) { for (int i = 0; i < treeError.getItemCount(); i++) treeCloseAll(treeError.getItem(i)); } else {/*from w ww . j a va 2 s . c o m*/ for (int i = 0; i < ti.getChildCount(); i++) treeCloseAll(ti.getChild(i)); ti.setState(false); } }
From source file:org.aksw.TripleCheckMate.client.widgets.EvaluationItemDialog.java
License:Apache License
private void treeOpenAll(TreeItem ti) { if (ti == null) { for (int i = 0; i < treeError.getItemCount(); i++) treeOpenAll(treeError.getItem(i)); } else {//from ww w. j av a2 s . c o m for (int i = 0; i < ti.getChildCount(); i++) treeOpenAll(ti.getChild(i)); ti.setState(true); } }
From source file:org.aksw.TripleCheckMate.client.widgets.EvaluationItemDialog.java
License:Apache License
private TreeItem getTreeItemWithID(TreeItem ti, long ID) { if (ti == null) { for (int i = 0; i < treeError.getItemCount(); i++) { ErrorItem er = (ErrorItem) treeError.getItem(i).getUserObject(); if (er.ID == ID) return treeError.getItem(i); TreeItem n = getTreeItemWithID(treeError.getItem(i), ID); if (n != null) return n; }//from ww w . j a v a 2s. c o m } else { for (int i = 0; i < ti.getChildCount(); i++) { ErrorItem er = (ErrorItem) ti.getChild(i).getUserObject(); if (er != null && er.ID == ID) return ti.getChild(i); TreeItem n = getTreeItemWithID(ti.getChild(i), ID); if (n != null) return n; } } return null; }
From source file:org.apache.sling.explorer.client.widgets.tree.resource.ResourceTree.java
License:Apache License
public ResourceTree() { super();//from w w w.ja v a 2 s. co m // Add an open handler to have a lazy loading treeview addOpenHandler(new OpenHandler<TreeItem>() { public void onOpen(OpenEvent<TreeItem> event) { TreeItem item = event.getTarget(); if (item.getState() && item.getChildCount() == 1) { Node node = (Node) item.getUserObject(); loadChildren(item, node.getId() + ExplorerConstants.JSON_TREE_REQUEST_EXTENSION); // Remove the temporary item when we finish loading item.getChild(0).remove(); } } }); // Add a selection handler to refresh the property & resource grids addSelectionHandler(new SelectionHandler<TreeItem>() { public void onSelection(SelectionEvent<TreeItem> event) { GWT.log("Selected item : " + event.getSelectedItem().getText(), null); Node node = (Node) event.getSelectedItem().getUserObject(); if (properties != null) properties.populate(node.id); } }); }
From source file:org.codesearch.searcher.client.ui.fileview.sidebar.SidebarImpl.java
License:Open Source License
private void expandItem(TreeItem item) { item.setState(true);//from w w w .j ava 2s . c o m for (int i = 0; i < item.getChildCount(); i++) { expandItem(item.getChild(i)); } }
From source file:org.datacleaner.monitor.shared.widgets.SchemaTree.java
License:Open Source License
@Override public void onOpen(OpenEvent<TreeItem> event) { final TreeItem item = event.getTarget(); if (item.getChildCount() == 1) { final TreeItem child = item.getChild(0); final String childText = child.getText(); if (LOADING_ITEM_TEXT.asString().equals(childText)) { loadChildren(item);//from w ww . j a va2 s. c om } } }