| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.designer.componentTree; |
| |
| import com.intellij.designer.designSurface.DesignerEditorPanel; |
| import com.intellij.designer.model.RadComponent; |
| import com.intellij.ide.util.treeView.AbstractTreeStructure; |
| import com.intellij.ide.util.treeView.NodeDescriptor; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author Alexander Lobas |
| */ |
| public final class TreeContentProvider extends AbstractTreeStructure { |
| private final DesignerEditorPanel myDesigner; |
| private final Object myTreeRoot = new Object(); |
| |
| public TreeContentProvider(DesignerEditorPanel designer) { |
| myDesigner = designer; |
| } |
| |
| @Override |
| public Object getRootElement() { |
| return myTreeRoot; |
| } |
| |
| @Override |
| public Object[] getChildElements(Object element) { |
| if (element == myTreeRoot) { |
| return myDesigner.getTreeRoots(); |
| } |
| if (element instanceof RadComponent) { |
| RadComponent component = (RadComponent)element; |
| return component.getTreeChildren(); |
| } |
| throw new IllegalArgumentException("Unknown element: " + element); |
| } |
| |
| @Override |
| public Object getParentElement(Object element) { |
| if (element instanceof RadComponent) { |
| RadComponent component = (RadComponent)element; |
| return component.getParent(); |
| } |
| return null; |
| } |
| |
| @NotNull |
| @Override |
| public NodeDescriptor createDescriptor(Object element, NodeDescriptor parentDescriptor) { |
| if (element == myTreeRoot || element instanceof RadComponent) { |
| TreeNodeDescriptor descriptor = new TreeNodeDescriptor(parentDescriptor, element); |
| descriptor.setWasDeclaredAlwaysLeaf(isAlwaysLeaf(element)); |
| return descriptor; |
| } |
| throw new IllegalArgumentException("Unknown element: " + element); |
| } |
| |
| @Override |
| public boolean isAlwaysLeaf(Object element) { |
| return element instanceof RadComponent && ((RadComponent)element).getTreeChildren().length == 0; |
| } |
| |
| @Override |
| public boolean hasSomethingToCommit() { |
| return false; |
| } |
| |
| @Override |
| public void commit() { |
| } |
| } |