@Nullable public Object getSelectedObject() { final TreePath selectionPath = myTree.getSelectionPath(); if (selectionPath != null && selectionPath.getLastPathComponent() instanceof MyNode) { MyNode node = (MyNode) selectionPath.getLastPathComponent(); final NamedConfigurable configurable = node.getConfigurable(); LOG.assertTrue(configurable != null, "already disposed"); return configurable.getEditableObject(); } return null; }
protected void removePaths(final TreePath... paths) { MyNode parentNode = null; int idx = -1; for (TreePath path : paths) { final MyNode node = (MyNode) path.getLastPathComponent(); final NamedConfigurable namedConfigurable = node.getConfigurable(); final Object editableObject = namedConfigurable.getEditableObject(); parentNode = (MyNode) node.getParent(); idx = parentNode.getIndex(node); ((DefaultTreeModel) myTree.getModel()).removeNodeFromParent(node); myHasDeletedItems |= wasObjectStored(editableObject); fireItemsChangeListener(editableObject); onItemDeleted(editableObject); namedConfigurable.disposeUIResources(); } if (paths.length > 0) { if (parentNode != null && idx != -1) { DefaultMutableTreeNode toSelect = null; if (idx < parentNode.getChildCount()) { toSelect = (DefaultMutableTreeNode) parentNode.getChildAt(idx); } else { if (idx > 0 && parentNode.getChildCount() > 0) { if (idx - 1 < parentNode.getChildCount()) { toSelect = (DefaultMutableTreeNode) parentNode.getChildAt(idx - 1); } else { toSelect = (DefaultMutableTreeNode) parentNode.getFirstChild(); } } else { if (parentNode.isRoot() && myTree.isRootVisible()) { toSelect = parentNode; } else if (parentNode.getChildCount() > 0) { toSelect = (DefaultMutableTreeNode) parentNode.getFirstChild(); } } } if (toSelect != null) { TreeUtil.selectInTree(toSelect, true, myTree); } } else { TreeUtil.selectFirstNode(myTree); } } }
protected void updateSelection(@Nullable NamedConfigurable configurable) { myDetails.setText(configurable != null ? configurable.getBannerSlogan() : null); myCurrentConfigurable = configurable; if (configurable != null) { final JComponent comp = configurable.createComponent(); if (comp == null) { setEmpty(); LOG.error("createComponent() returned null. configurable=" + configurable); } else { myDetails.setContent(comp); ensureInitialized(configurable); myHistory.pushPlaceForElement(TREE_OBJECT, configurable.getEditableObject()); } } else { setEmpty(); } }