bibliothek.gui.dock.action.LineDockActionSource Maven / Gradle / Ivy
/*
* 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) 2012 Herve Guillaume, 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
*
* Herve Guillaume
* [email protected]
* FR - France
*
* Benjamin Sigg
* [email protected]
* CH - Switzerland
*/
package bibliothek.gui.dock.action;
import java.util.Iterator;
import bibliothek.gui.dock.action.actions.SeparatorAction;
import bibliothek.gui.dock.action.view.ViewTarget;
import bibliothek.gui.dock.event.DockActionSourceListener;
import bibliothek.gui.dock.themes.basic.action.DockActionImportance;
/**
* This {@link DockActionSource} adds a {@link SeparatorAction} at the beginning if its delegate
* {@link DockActionSource} has any content.
* @author Benjamin Sigg
*/
public class LineDockActionSource extends AbstractDockActionSource{
private DockActionSource source;
private SeparatorAction separator = new Separator();
@DockActionImportance( value=0.0 )
private class Separator extends SeparatorAction{
public Separator(){
super( ViewTarget.TITLE );
}
}
private DockActionSourceListener listener = new DockActionSourceListener(){
@Override
public void actionsRemoved( DockActionSource source, int firstIndex, int lastIndex ){
if( source.getDockActionCount() == 0 ){
fireRemoved( 0, lastIndex+1 );
}
else{
fireRemoved( firstIndex+1, lastIndex+1 );
}
}
@Override
public void actionsAdded( DockActionSource source, int firstIndex, int lastIndex ){
int count = lastIndex - firstIndex + 1;
if( count == source.getDockActionCount() ){
fireAdded( 0, lastIndex+1 );
}
else{
fireAdded( firstIndex+1, lastIndex+1 );
}
}
};
public LineDockActionSource( DockActionSource source ){
this.source = source;
}
@Override
public LocationHint getLocationHint(){
return source.getLocationHint();
}
@Override
public int getDockActionCount(){
int count = source.getDockActionCount();
if( count > 0 ){
count++;
}
return count;
}
@Override
public DockAction getDockAction( int index ){
if( index == 0 ){
return separator;
}
else{
return source.getDockAction( index-1 );
}
}
@Override
public void addDockActionSourceListener( DockActionSourceListener listener ){
if( !hasListeners() ){
source.addDockActionSourceListener( this.listener );
}
super.addDockActionSourceListener( listener );
}
@Override
public void removeDockActionSourceListener( DockActionSourceListener listener ){
super.removeDockActionSourceListener( listener );
if( !hasListeners() ){
source.removeDockActionSourceListener( this.listener );
}
}
@Override
public Iterator iterator(){
return new Iterator(){
private boolean separatorSent = false;
private Iterator inner = source.iterator();
@Override
public DockAction next(){
if( separatorSent ){
return inner.next();
}
else{
separatorSent = true;
return separator;
}
}
@Override
public boolean hasNext(){
if( separatorSent ){
return inner.hasNext();
}
else{
return getDockActionCount() > 0;
}
}
@Override
public void remove(){
if( separatorSent ){
inner.remove();
}
else{
throw new IllegalStateException( "not supported for the first element" );
}
}
};
}
}