pjs/grendel/ui/PrefsDialog.java

155 строки
4.3 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Modified: Jeff Galyan <jeffrey.galyan@sun.com>, 30 Dec 1998
*/
package grendel.ui;
import java.beans.SimpleBeanInfo;
import java.beans.PropertyDescriptor;
import java.beans.PropertyEditor;
import java.awt.Container;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JDialog;
import javax.swing.JTabbedPane;
import javax.swing.JPanel;
import calypso.util.Preferences;
import calypso.util.PreferencesFactory;
import grendel.prefs.Prefs;
/**
* This class handles preference dialog box handling for Grendel. Why
* was all this stuff static?
*/
public class PrefsDialog
extends JDialog {
public static String OK = "Okay";
public static String CANCEL = "Cancel";
JTabbedPane pane;
PropertyEditor[] editors;
public static void CheckPrefs(JFrame aParent) {
if (!ValidPrefs()) {
new PrefsDialog(aParent);
}
}
public PrefsDialog(JFrame aParent) {
Object objs[] = {new Prefs()};
propertyEditorDialog(aParent, new Prefs());
}
public static boolean ValidPrefs() {
Preferences prefs = PreferencesFactory.Get();
boolean res = true;
return res;
}
private void propertyEditorDialog(JFrame parent, Object obj) {
Class reference = obj.getClass();
String name = reference.getName();
Container content = getContentPane();
String[] labels = {OK, CANCEL};
pane = new JTabbedPane();
// gui handling
content.setLayout(new BorderLayout());
content.add(pane, BorderLayout.CENTER);
content.add(buttonPanel(labels,
new PrefsDialogListener()),
BorderLayout.SOUTH);
try {
// get the beaninfo
Object o;
SimpleBeanInfo info;
Class beanie = Class.forName(name + "BeanInfo");
PropertyDescriptor[] desc;
o = beanie.newInstance();
if (!(o instanceof SimpleBeanInfo)) return; // bummer
// process the descriptors
info = (SimpleBeanInfo)o;
desc = info.getPropertyDescriptors();
editors = new PropertyEditor[desc.length];
for (int i = 0; i < desc.length; i++) {
o = desc[i].getPropertyEditorClass().newInstance();
if (!(o instanceof PropertyEditor)) continue;
editors[i] = (PropertyEditor)o;
pane.add(desc[i].getDisplayName(), editors[i].getCustomEditor());
}
pack();
setVisible(true);
} catch (Exception e) {
System.out.println("welp, that sucked. beans is broke. And stuff");
}
}
private JPanel buttonPanel(String[] labels,
ActionListener listener) {
JPanel panel = new JPanel();
panel.setLayout(new FlowLayout());
if (labels != null) {
for (int i = 0; i < labels.length; i++) {
JButton button = new JButton(labels[i]);
button.setActionCommand(labels[i]);
if (listener != null) button.addActionListener(listener);
panel.add(button);
}
}
return panel;
}
class PrefsDialogListener
implements ActionListener {
JDialog dialog;
public PrefsDialogListener() {
dialog = PrefsDialog.this;
}
public void actionPerformed(ActionEvent event) {
String command = event.getActionCommand();
Prefs prefs = new Prefs();
if (command.equals(PrefsDialog.OK)) {
for (int i = 0; i < editors.length; i++) {
prefs.set(editors[i].getValue());
}
}
dialog.setVisible(false);
}
}
}