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WebLaf is a Java Swing Look and Feel and extended components library for cross-platform applications
/*
* 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.extended.breadcrumb;
import com.alee.laf.button.WebToggleButtonUI;
import com.alee.painter.AbstractPainter;
import com.alee.utils.swing.AncestorAdapter;
import javax.swing.event.AncestorEvent;
import java.awt.*;
import java.awt.event.ContainerAdapter;
import java.awt.event.ContainerEvent;
/**
* Custom painter for WebBreadcrumbToggleButton component.
*
* @author Mikle Garin
*/
public class BreadcrumbToggleButtonPainter
extends AbstractPainter
{
/**
* Listeners.
*/
protected ContainerAdapter containerAdapter;
protected AncestorAdapter ancestorAdapter;
/**
* Runtime variables.
*/
protected WebBreadcrumb breadcrumb = null;
@Override
public void install ( final E c, final U ui )
{
super.install ( c, ui );
containerAdapter = new ContainerAdapter ()
{
@Override
public void componentAdded ( final ContainerEvent e )
{
if ( e.getChild () != c )
{
updateAll ();
}
}
@Override
public void componentRemoved ( final ContainerEvent e )
{
if ( e.getChild () != c )
{
updateAll ();
}
}
};
ancestorAdapter = new AncestorAdapter ()
{
@Override
public void ancestorAdded ( final AncestorEvent event )
{
final Container container = c.getParent ();
if ( container instanceof WebBreadcrumb )
{
breadcrumb = ( WebBreadcrumb ) container;
breadcrumb.addContainerListener ( containerAdapter );
}
updateAll ();
}
@Override
public void ancestorRemoved ( final AncestorEvent event )
{
removeBreadcrumbAdapter ();
updateAll ();
}
};
c.addAncestorListener ( ancestorAdapter );
}
@Override
public void uninstall ( final E c, final U ui )
{
removeBreadcrumbAdapter ();
containerAdapter = null;
c.removeAncestorListener ( ancestorAdapter );
ancestorAdapter = null;
super.uninstall ( c, ui );
}
/**
* Removes ContainerAdapter from parent breadcrumb if it exists.
*/
protected void removeBreadcrumbAdapter ()
{
if ( breadcrumb != null )
{
breadcrumb.removeContainerListener ( containerAdapter );
breadcrumb = null;
}
}
@Override
public Boolean isOpaque ()
{
return false;
}
@Override
public Insets getBorders ()
{
return BreadcrumbUtils.getElementMargin ( component );
}
@Override
public void paint ( final Graphics2D g2d, final Rectangle bounds, final E c, final U ui )
{
// Painting background
BreadcrumbUtils.paintElementBackground ( g2d, c );
}
}
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