/*
* Bibliothek - DockingFrames
* Library built on Java/Swing, allows the user to "drag and drop"
* panels containing any Swing-Component the developer likes to add.
*
* Copyright (C) 2007 Benjamin Sigg
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Benjamin Sigg
* benjamin_sigg@gmx.ch
* CH - Switzerland
*/
package bibliothek.gui.dock.common.intern.station;
import java.awt.Dimension;
import bibliothek.gui.Dockable;
import bibliothek.gui.dock.StackDockStation;
import bibliothek.gui.dock.common.CControl;
import bibliothek.gui.dock.common.event.ResizeRequestListener;
import bibliothek.gui.dock.common.intern.CDockable;
import bibliothek.gui.dock.common.intern.CommonDockable;
import bibliothek.gui.dock.common.layout.RequestDimension;
import bibliothek.util.FrameworkOnly;
/**
* A listener to a {@link CControl} that provides useful methods for subclasses.
* @author Benjamin Sigg
*/
@FrameworkOnly
public abstract class AbstractResizeRequestHandler implements ResizeRequestListener{
/**
* Searches the size request of <code>dockable</code>.
* @param dockable some element
* @return the size request or <code>null</code>
*/
protected RequestDimension getAndClearResizeRequest( Dockable dockable ){
if( dockable instanceof CommonDockable ){
CDockable cdock = ((CommonDockable)dockable).getDockable();
RequestDimension result = cdock.getAndClearResizeRequest();
if( result == null )
return null;
return result.clone();
}
if( dockable instanceof StackDockStation ){
RequestDimension max = new RequestDimension();
StackDockStation station = (StackDockStation)dockable;
for( int i = 0, n = station.getDockableCount(); i<n; i++ ){
RequestDimension check = getAndClearResizeRequest( station.getDockable( i ) );
if( check != null ){
Dimension sizeDockable = station.getDockable( i ).getComponent().getSize();
Dimension sizeStation = station.getComponent().getSize();
if( check.isWidthSet() ){
max.setWidth( Math.max( max.getWidth(), check.getWidth() + sizeStation.width - sizeDockable.width ) );
}
if( check.isHeightSet() ){
max.setHeight( Math.max( max.getHeight(), check.getHeight() + sizeStation.height - sizeDockable.height ) );
}
}
}
if( max.isHeightSet() || max.isWidthSet() )
return max;
}
return null;
}
}