| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.uima.caseditor.editor.fsview; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.uima.cas.Type; |
| import org.apache.uima.cas.TypeSystem; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.ModifyEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * A combo box which contains UIMA Types. |
| * |
| * @see Type |
| * @see TypeSystem |
| */ |
| public class TypeCombo extends Composite { |
| |
| private Set<ITypePaneListener> listeners = new HashSet<ITypePaneListener>(); |
| |
| private TypeSystem typeSystem; |
| |
| private Combo typeCombo; |
| |
| private List<String> typeNameList; |
| |
| public TypeCombo(Composite parent, Type superType, TypeSystem typeSystem) { |
| this(parent, superType, typeSystem, new LinkedList<Type>()); |
| } |
| |
| public TypeCombo(Composite parent, Type superType, TypeSystem typeSystem, |
| Collection<Type> filterTypes) { |
| super(parent, SWT.NONE); |
| |
| this.typeSystem = typeSystem; |
| |
| setLayout(new FillLayout()); |
| |
| typeCombo = new Combo(this, SWT.READ_ONLY | SWT.DROP_DOWN | SWT.BORDER); |
| |
| typeCombo.addModifyListener(new ModifyListener() { |
| public void modifyText(ModifyEvent e) { |
| Type newType = getType(); |
| |
| for (ITypePaneListener listener : listeners) { |
| listener.typeChanged(newType); |
| } |
| } |
| }); |
| |
| typeNameList = new LinkedList<String>(); |
| |
| typeNameList.add(superType.getName()); |
| |
| for (Type type : typeSystem.getProperlySubsumedTypes(superType)) { |
| |
| if (!filterTypes.contains(type)) { |
| typeNameList.add(type.getName()); |
| } |
| } |
| |
| typeCombo.setItems(typeNameList.toArray(new String[typeNameList.size()])); |
| |
| // select the super type, its the first element (and must be there) |
| typeCombo.select(0); |
| } |
| |
| /** |
| * Selects the given type or does nothing if the |
| * type is not listed. |
| * |
| * @param type |
| */ |
| public void select(Type type) { |
| Integer typeIndex = typeNameList.indexOf(type.getName()); |
| |
| if (typeIndex != null) { |
| typeCombo.select(typeIndex); |
| } |
| } |
| |
| public Type getType() { |
| return typeSystem.getType(typeCombo.getText()); |
| } |
| |
| public void addListener(ITypePaneListener listener) { |
| listeners.add(listener); |
| } |
| |
| public void removeListener(ITypePaneListener listener) { |
| listeners.remove(listener); |
| } |
| } |