Java tutorial
/* * mongobrowser - a webstart gui application for viewing, * editing and administering a Mongo Database * Copyright 2009-2011 MeBigFatGuy.com * Copyright 2009-2011 Dave Brosius * * 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.mebigfatguy.mongobrowser.dialogs; import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.List; import javax.swing.BorderFactory; import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.DefaultCellEditor; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import com.jgoodies.forms.layout.CellConstraints; import com.jgoodies.forms.layout.FormLayout; import com.mebigfatguy.mongobrowser.MongoBundle; import com.mebigfatguy.mongobrowser.SwingUtils; import com.mebigfatguy.mongobrowser.model.IndexDescription; import com.mebigfatguy.mongobrowser.model.IndexFieldList; public class ManageIndicesDialog extends JDialog { private static final long serialVersionUID = -4263800895451732866L; private static int INDEX_SEQ = 1; private JTable indicesTable; private JButton addIndexButton; private JButton removeIndexButton; private JButton okButton; private JButton cancelButton; private boolean ok = false; public ManageIndicesDialog(List<IndexDescription> indices) { setTitle(MongoBundle.getString(MongoBundle.Key.ManageIndices)); initComponents(indices); initListeners(); pack(); } /** * did the user click ok * * @return if the user clicked ok */ public boolean isOK() { return ok; } public List<IndexDescription> getIndicesNames() { ManageIndicesModel model = (ManageIndicesModel) indicesTable.getModel(); return model.getIndices(); } private void initComponents(List<IndexDescription> indices) { Container cp = getContentPane(); cp.setLayout(new BorderLayout(4, 4)); cp.add(createIndicesListPanel(indices), BorderLayout.CENTER); cp.add(createCtrlPanel(), BorderLayout.SOUTH); SwingUtils.sizeUniformly(okButton, cancelButton, addIndexButton, removeIndexButton); } private void initListeners() { okButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent ae) { ok = true; dispose(); } }); cancelButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent ae) { dispose(); } }); addIndexButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { String indexName = createUniqueIndexName(); IndexDescription index = new IndexDescription(indexName, new IndexFieldList()); ManageIndicesModel model = (ManageIndicesModel) indicesTable.getModel(); model.add(index); } }); removeIndexButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { ManageIndicesModel model = (ManageIndicesModel) indicesTable.getModel(); int[] selRows = indicesTable.getSelectedRows(); for (int i = selRows.length - 1; i >= 0; i--) { model.removeAt(selRows[i]); } } }); } private JPanel createIndicesListPanel(List<IndexDescription> indices) { JPanel p = new JPanel(); p.setLayout(new FormLayout("6dlu, pref:grow, 5dlu, pref, 6dlu", "6dlu, 12dlu:grow, pref, 3dlu, pref, 12dlu:grow, 6dlu, pref, 6dlu")); CellConstraints cc = new CellConstraints(); ManageIndicesModel model = new ManageIndicesModel(indices); indicesTable = new JTable(model); indicesTable.setDefaultEditor(String.class, new DefaultCellEditor(new JTextField())); indicesTable.setDefaultEditor(IndexFieldList.class, new IndexFieldListCellEditor()); indicesTable.setDefaultRenderer(IndexFieldList.class, new IndexFieldListCellRenderer()); p.add(new JScrollPane(indicesTable), cc.xywh(2, 2, 1, 5)); addIndexButton = new JButton(MongoBundle.getString(MongoBundle.Key.AddIndex)); p.add(addIndexButton, cc.xy(4, 3)); removeIndexButton = new JButton(MongoBundle.getString(MongoBundle.Key.RemoveIndex)); p.add(removeIndexButton, cc.xy(4, 5)); return p; } /** * creates a panel holding the ok and cancel buttons * * @return the ok/cancel button panel */ private JPanel createCtrlPanel() { JPanel p = new JPanel(); p.setBorder(BorderFactory.createEmptyBorder(20, 0, 10, 0)); p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); p.add(Box.createHorizontalGlue()); okButton = new JButton(MongoBundle.getString(MongoBundle.Key.OK)); p.add(okButton); p.add(Box.createHorizontalStrut(10)); cancelButton = new JButton(MongoBundle.getString(MongoBundle.Key.Cancel)); p.add(cancelButton); p.add(Box.createHorizontalStrut(10)); return p; } private String createUniqueIndexName() { String name = null; do { name = MongoBundle.getString(MongoBundle.Key.IndexPrefix) + INDEX_SEQ++; } while (indexExists(name)); return name; } private boolean indexExists(String name) { ManageIndicesModel model = (ManageIndicesModel) indicesTable.getModel(); for (int i = 0; i < model.getRowCount(); i++) { if (name.equals(model.getValueAt(i, 0))) { return true; } } return false; } }