| /* |
| * Copyright 2000-2009 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. |
| */ |
| |
| /* |
| * @author max |
| */ |
| package com.intellij.ui.speedSearch; |
| |
| import com.intellij.openapi.util.Condition; |
| import com.intellij.ui.CollectionListModel; |
| |
| import javax.swing.*; |
| import javax.swing.event.ListDataEvent; |
| import javax.swing.event.ListDataListener; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author max |
| */ |
| public class FilteringListModel<T> extends AbstractListModel { |
| private final ListModel myOriginalModel; |
| private final List<T> myData = new ArrayList<T>(); |
| private Condition<T> myCondition = null; |
| |
| |
| private final ListDataListener myListDataListener = new ListDataListener() { |
| public void contentsChanged(ListDataEvent e) { |
| refilter(); |
| } |
| |
| public void intervalAdded(ListDataEvent e) { |
| refilter(); |
| } |
| |
| public void intervalRemoved(ListDataEvent e) { |
| refilter(); |
| } |
| }; |
| |
| public FilteringListModel(ListModel originalModel) { |
| myOriginalModel = originalModel; |
| myOriginalModel.addListDataListener(myListDataListener); |
| } |
| |
| protected FilteringListModel(JList list) { |
| this(list.getModel()); |
| list.setModel(this); |
| } |
| |
| public void dispose() { |
| myOriginalModel.removeListDataListener(myListDataListener); |
| } |
| |
| public void setFilter(Condition<T> condition) { |
| myCondition = condition; |
| refilter(); |
| } |
| |
| private void removeAllElements() { |
| int index1 = myData.size() - 1; |
| if (index1 >= 0) { |
| myData.clear(); |
| fireIntervalRemoved(this, 0, index1); |
| } |
| } |
| |
| public void refilter() { |
| removeAllElements(); |
| int count = 0; |
| for (int i = 0; i < myOriginalModel.getSize(); i++) { |
| final T elt = (T)myOriginalModel.getElementAt(i); |
| if (passElement(elt)) { |
| addToFiltered(elt); |
| count++; |
| } |
| } |
| |
| if (count > 0) { |
| fireIntervalAdded(this, 0, count - 1); |
| } |
| } |
| |
| protected void addToFiltered(T elt) { |
| myData.add(elt); |
| } |
| |
| public int getSize() { |
| return myData.size(); |
| } |
| |
| public T getElementAt(int index) { |
| return myData.get(index); |
| } |
| |
| public int getElementIndex(T element) { |
| return myData.indexOf(element); |
| } |
| |
| private boolean passElement(T element) { |
| return myCondition == null || myCondition.value(element); |
| } |
| |
| public boolean contains(T value) { |
| return myData.contains(value); |
| } |
| |
| public ListModel getOriginalModel() { |
| return myOriginalModel; |
| } |
| |
| public void addAll(List elements) { |
| myData.addAll(elements); |
| ((CollectionListModel)myOriginalModel).add(elements); |
| } |
| |
| public void replaceAll(List elements) { |
| myData.clear(); |
| myData.addAll(elements); |
| ((CollectionListModel)myOriginalModel).replaceAll(elements); |
| } |
| |
| public void remove(int index) { |
| ((DefaultListModel)myOriginalModel).removeElement(myData.get(index)); |
| } |
| } |