com.alee.managers.settings.processors.WebTreeSettingsProcessor Maven / Gradle / Ivy

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/*
 * This file is part of WebLookAndFeel library.
 *
 * WebLookAndFeel library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * WebLookAndFeel library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WebLookAndFeel library.  If not, see .
 */

package com.alee.managers.settings.processors;

import com.alee.laf.tree.TreeState;
import com.alee.laf.tree.UniqueNode;
import com.alee.laf.tree.WebTree;
import com.alee.managers.settings.SettingsProcessor;
import com.alee.managers.settings.SettingsProcessorData;

import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeExpansionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;

/**
 * Custom SettingsProcessor for WebTree component.
 *
 * @author Mikle Garin
 * @see How to use SettingsManager
 * @see com.alee.managers.settings.SettingsManager
 * @see com.alee.managers.settings.SettingsProcessor
 */

public class WebTreeSettingsProcessor extends SettingsProcessor, TreeState>
        implements TreeSelectionListener, TreeExpansionListener
{
    /**
     * Constructs SettingsProcessor using the specified SettingsProcessorData.
     *
     * @param data SettingsProcessorData
     */
    public WebTreeSettingsProcessor ( final SettingsProcessorData data )
    {
        super ( data );
    }

    @Override
    protected void doInit ( final WebTree component )
    {
        component.addTreeSelectionListener ( this );
        component.addTreeExpansionListener ( this );
    }

    @Override
    protected void doDestroy ( final WebTree component )
    {
        component.removeTreeExpansionListener ( this );
        component.removeTreeSelectionListener ( this );
    }

    @Override
    public void treeExpanded ( final TreeExpansionEvent event )
    {
        save ();
    }

    @Override
    public void treeCollapsed ( final TreeExpansionEvent event )
    {
        save ();
    }

    @Override
    public void valueChanged ( final TreeSelectionEvent e )
    {
        save ();
    }

    @Override
    protected void doLoad ( final WebTree component )
    {
        if ( component.getRootNode () instanceof UniqueNode )
        {
            final TreeState value = loadValue ();
            if ( value != null )
            {
                component.setTreeState ( value );
            }
        }
    }

    @Override
    protected void doSave ( final WebTree component )
    {
        if ( component.getRootNode () instanceof UniqueNode )
        {
            saveValue ( component.getTreeState () );
        }
    }
}