Panneau intégrant deux listes permettant la selection d'éléments de l'une vers l'autre.
Source / Exemple :
package com.infodavid.gui;
/*
- Copyright (c) 2001 David Rolland
*
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
*
- -Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
*
- -Redistribution in binary form must reproduct the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
*
- This software is provided "AS IS," without a warranty of any kind. ALL
- EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
- IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
- NON-INFRINGEMENT, ARE HEREBY EXCLUDED. D.Rolland SHALL NOT BE
- LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
- OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL D.Rolland
- BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
- INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
- CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
- OR INABILITY TO USE SOFTWARE, EVEN IF D.Rolland HAS BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES.
*
- You acknowledge that Software is not designed,licensed or intended for use in
- the design, construction, operation or maintenance of any nuclear facility.
- /
import javax.swing.JSplitPane;
import javax.swing.JList;
import javax.swing.JButton;
import java.awt.dnd.*;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import sun.net.www.MimeEntry;
import java.beans.PropertyVetoException;
/* infodavid */
import com.infodavid.lang.LanguageObject;
import com.infodavid.lang.Language;
import com.infodavid.gui.events.ActionToChangeListener;
import com.infodavid.gui.events.ActionToDropListener;
/**
- Title:
- Description:
- Copyright: Copyright (c) 2001
- Company: David Rolland, infodavid@chez.com
- @author David Rolland, infodavid@chez.com
- @version 0.2
- /
public class SelectionListsPanel extends AbstractPanel {
private class DefaultGlobalListTargetListener extends ActionToDropListener {
public DefaultGlobalListTargetListener(ActionListener al) { super(al); }
public boolean isDragAcceptable(DropTargetEvent e) {
return (adding || removing) && isEnabled();
}
public boolean isDropAcceptable(DropTargetEvent e) {
return adding && isEnabled();
}
public void dragEnter(DropTargetDragEvent e) {
removing = false;
if (!isDragAcceptable(e)) {
e.rejectDrag();
}
}
public void dragExit(DropTargetEvent e) {
if (adding) {
adding = false;
}
else {
removing = true;
}
}
public void drop(DropTargetDropEvent e) {
if (!isDropAcceptable(e)) {
e.rejectDrop();
}
else {
e.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
super.drop(e);
adding = false;
e.dropComplete(true);
}
}
}
private class DefaultSelectionListTargetListener extends ActionToDropListener {
public DefaultSelectionListTargetListener(ActionListener al) { super(al); }
public boolean isDragAcceptable(DropTargetEvent e) {
return (adding || removing) && isEnabled();
}
public boolean isDropAcceptable(DropTargetEvent e) {
return removing && isEnabled();
}
public void dragEnter(DropTargetDragEvent e) {
adding = false;
if (!isDragAcceptable(e)) {
e.rejectDrag();
}
}
public void dragExit(DropTargetEvent e) {
if (removing) {
removing = false;
}
else {
adding = true;
}
}
public void drop(DropTargetDropEvent e) {
if (!isDropAcceptable(e)) {
e.rejectDrop();
}
else {
e.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
super.drop(e);
removing = false;
e.dropComplete(true);
}
}
}
private ListPanel selectionPanel = null;
private ListPanel globalPanel = null;
private JButton add = null;
private JButton remove = null;
private boolean removing = false;
private boolean adding = false;
/**
*
- @param Language Dictionnaire
- @param int Orientation
- @exception PropertyVetoException Exception liée à la validité du dictionnaire
- /
public SelectionListsPanel(Language lang, int orientation) throws PropertyVetoException {
if (lang == null) {
throw new IllegalArgumentException(getClass().getName() +
"." + getClass().getName() + "(Language)");
}
initializePanel(lang, orientation);
}
/**
*
- @exception IllegalAccessError Exception liée a la non implementation
- /
public MimeEntry[] getMimeType() {
throw new IllegalAccessError(getClass().getName() +
".getMimeType(), not used !");
}
public ListPanel getSelectionPanel() { return selectionPanel; }
public JList getSelectionList() { return getSelectionPanel().getList(); }
public JList getGlobalList() { return getGlobalPanel().getList(); }
public ListPanel getGlobalPanel() { return globalPanel; }
private void initializePanel(Language language, int orientation)
throws PropertyVetoException {
LanguageObject lang = null;
selectionPanel = new ListPanel();
remove = new JButton();
lang = language.get("Remove", remove);
selectionPanel.getContentPanel().add(remove, BorderLayout.SOUTH);
globalPanel = new ListPanel();
add = new JButton();
lang = language.get("Add", add);
globalPanel.getContentPanel().add(add, BorderLayout.SOUTH);
JSplitPane splitPane = new JSplitPane(
orientation,
selectionPanel.getContentPanel(),
globalPanel.getContentPanel()
);
splitPane.setContinuousLayout(true);
splitPane.setDoubleBuffered(true);
splitPane.setOneTouchExpandable(true);
setContentComponent(splitPane);
}
public void addActionListener(ActionListener l) {
super.addActionListener(l);
selectionPanel.addActionListener(l);
globalPanel.addActionListener(l);
add.addActionListener(l);
remove.addActionListener(l);
JList list = (JList)selectionPanel.getContentComponent();
list.setDragEnabled(true);
list.setDropTarget(
new DropTarget(
list,
new DefaultSelectionListTargetListener(l)
)
);
list = (JList)globalPanel.getContentComponent();
list.setDragEnabled(true);
list.setDropTarget(
new DropTarget(
list,
new DefaultGlobalListTargetListener(l)
)
);
}
public void removeActionListener(ActionListener l) {
super.removeActionListener(l);
add.removeActionListener(l);
remove.removeActionListener(l);
selectionPanel.removeActionListener(l);
globalPanel.removeActionListener(l);
JList list = (JList)selectionPanel.getContentComponent();
list.setDropTarget(null);
list = (JList)globalPanel.getContentComponent();
list.setDropTarget(null);
}
public static void main(String[] args) {
try {
javax.swing.JFrame f = new javax.swing.JFrame();
SelectionListsPanel p = new SelectionListsPanel(new Language(), JSplitPane.HORIZONTAL_SPLIT);
p.setTitle("Test");
p.getGlobalPanel().setTitle("Global");
p.getSelectionPanel().setTitle("Selection");
p.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println(e);
}
});
JList list = p.getGlobalList();
list.setListData(new String[] { "item1" });
list = p.getSelectionList();
list.setListData(new String[] { "item2", "item3" });
f.getContentPane().add(p.getContentPanel());
f.pack();
f.show();
} catch (Exception e) { e.printStackTrace(); }
}
}
Conclusion :
Tester le main...
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