Java tutorial
/******************************************************************************* * Copyright 2015 Maximilian Stark | Dakror <mail@dakror.de> * * 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 de.dakror.virtualhub.client.dialog; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.IOException; import javax.swing.AbstractAction; import javax.swing.DefaultListModel; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSeparator; import javax.swing.ListSelectionModel; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import de.dakror.virtualhub.client.Client; import de.dakror.virtualhub.client.ClientFrame; import de.dakror.virtualhub.data.Catalog; import de.dakror.virtualhub.net.packet.Packet0Catalogs; /** * @author Dakror */ public class ChooseCatalogDialog { public static void show(ClientFrame frame, final JSONArray data) { final JDialog dialog = new JDialog(frame, "Katalog whlen", true); dialog.setSize(400, 300); dialog.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); dialog.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { Client.currentClient.disconnect(); System.exit(0); } }); JPanel contentPane = new JPanel(new FlowLayout(FlowLayout.LEADING, 0, 0)); dialog.setContentPane(contentPane); DefaultListModel dlm = new DefaultListModel(); for (int i = 0; i < data.length(); i++) { try { dlm.addElement(data.getJSONObject(i).getString("name")); } catch (JSONException e) { e.printStackTrace(); } } final JList catalogs = new JList(dlm); catalogs.setDragEnabled(false); catalogs.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); JScrollPane jsp = new JScrollPane(catalogs, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); jsp.setPreferredSize(new Dimension(396, 200)); contentPane.add(jsp); JPanel mods = new JPanel(new GridLayout(1, 2)); mods.setPreferredSize(new Dimension(50, 22)); mods.add(new JButton(new AbstractAction("+") { private static final long serialVersionUID = 1L; @Override public void actionPerformed(ActionEvent e) { String name = JOptionPane.showInputDialog(dialog, "Bitte geben Sie den Namen des neuen Katalogs ein.", "Katalog hinzufgen", JOptionPane.PLAIN_MESSAGE); if (name != null && name.length() > 0) { DefaultListModel dlm = (DefaultListModel) catalogs.getModel(); for (int i = 0; i < dlm.getSize(); i++) { if (dlm.get(i).toString().equals(name)) { JOptionPane.showMessageDialog(dialog, "Es existert bereits ein Katalog mit diesem Namen!", "Katalog bereits vorhanden!", JOptionPane.ERROR_MESSAGE); actionPerformed(e); return; } } try { dlm.addElement(name); JSONObject o = new JSONObject(); o.put("name", name); o.put("sources", new JSONArray()); o.put("tags", new JSONArray()); data.put(o); Client.currentClient.sendPacket(new Packet0Catalogs(data)); } catch (Exception e1) { e1.printStackTrace(); } } } })); mods.add(new JButton(new AbstractAction("-") { private static final long serialVersionUID = 1L; @Override public void actionPerformed(ActionEvent e) { if (catalogs.getSelectedIndex() != -1) { if (JOptionPane.showConfirmDialog(dialog, "Sind Sie sicher, dass Sie diesen\r\nKatalog unwiderruflich lschen wollen?", "Katalog lschen", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE) == JOptionPane.YES_OPTION) { DefaultListModel dlm = (DefaultListModel) catalogs.getModel(); data.remove(catalogs.getSelectedIndex()); dlm.remove(catalogs.getSelectedIndex()); try { Client.currentClient.sendPacket(new Packet0Catalogs(data)); } catch (IOException e1) { e1.printStackTrace(); } } } } })); contentPane.add(mods); JLabel l = new JLabel(""); l.setPreferredSize(new Dimension(396, 14)); contentPane.add(l); JSeparator sep = new JSeparator(JSeparator.HORIZONTAL); sep.setPreferredSize(new Dimension(396, 10)); contentPane.add(sep); JPanel buttons = new JPanel(new GridLayout(1, 2)); buttons.setPreferredSize(new Dimension(396, 22)); buttons.add(new JButton(new AbstractAction("Abbrechen") { private static final long serialVersionUID = 1L; @Override public void actionPerformed(ActionEvent e) { Client.currentClient.disconnect(); System.exit(0); } })); buttons.add(new JButton(new AbstractAction("Katalog whlen") { private static final long serialVersionUID = 1L; @Override public void actionPerformed(ActionEvent e) { if (catalogs.getSelectedIndex() != -1) { try { Client.currentClient .setCatalog(new Catalog(data.getJSONObject(catalogs.getSelectedIndex()))); Client.currentClient.frame.setTitle("- " + Client.currentClient.getCatalog().getName()); dialog.dispose(); } catch (JSONException e1) { e1.printStackTrace(); } } } })); dialog.add(buttons); dialog.setLocationRelativeTo(frame); dialog.setResizable(false); dialog.setVisible(true); } }