/*
* 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) 2011 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.group;
import bibliothek.gui.DockStation;
import bibliothek.gui.Dockable;
import bibliothek.gui.dock.StackDockStation;
import bibliothek.gui.dock.common.mode.ExtendedMode;
import bibliothek.gui.dock.facile.mode.Location;
import bibliothek.gui.dock.layout.DockableProperty;
import bibliothek.gui.dock.station.stack.StackDockProperty;
/**
* This movement moves an entire {@link StackDockStation} to the place indicated by one of its children.
* @author Benjamin Sigg
*/
public class StackGroupMovement implements CGroupMovement{
private StackDockStation dockParent;
private Dockable dockable;
private ExtendedMode target;
private DockStation currentStation;
private Dockable currentDockable;
/**
* Creates a new movement object.
* @param dockParent the station that should be moved
* @param dockable the dockable that indicates the target location
* @param target the mode that <code>dockable</code> should have after the movemenet
*/
public StackGroupMovement( StackDockStation dockParent, Dockable dockable, ExtendedMode target ){
this.dockParent = dockParent;
this.dockable = dockable;
this.target = target;
}
public void apply( CGroupBehaviorCallback callback ){
// find location of dockable in respect to the other items
int baseIndex = dockParent.indexOf( dockable );
Dockable[] children = new Dockable[ dockParent.getDockableCount() ];
for( int i = 0; i < children.length; i++ ){
children[i] = dockParent.getDockable( i );
}
// move the first item and find out where it lands
callback.setMode( dockable, target );
// check premature end because of multiple Dockables movement.
boolean oneMissing = false;
for( Dockable child : children ){
if( child != dockable ){
if( callback.getManager().getMode( child ) != target ){
oneMissing = true;
break;
}
else if( child.getDockParent() != dockable.getDockParent() ){
oneMissing = true;
break;
}
}
}
// premature end
if( !oneMissing ){
return;
}
int missing = 0;
// move all the items that were before dockable
for( int i = baseIndex - 1; i >= 0; i-- ){
currentDockable = children[i];
currentStation = dockable.getDockParent();
Location base = callback.getLocation( dockable );
Location movingLocation = new Location( base.getMode(), base.getRoot(), copyAndSetStackLocation( base.getLocation(), i - baseIndex + 1 - missing ) );
callback.setLocation( currentDockable, movingLocation );
if( currentDockable.getDockParent() != dockable.getDockParent() ){
missing++;
}
}
// move all the items that were after dockable
for( int i = baseIndex + 1; i < children.length; i++ ){
currentDockable = children[i];
currentStation = dockable.getDockParent();
Location base = callback.getLocation( dockable );
Location movingLocation = new Location( base.getMode(), base.getRoot(), copyAndSetStackLocation( base.getLocation(), i - baseIndex - missing ) );
callback.setLocation( currentDockable, movingLocation );
if( currentDockable.getDockParent() != dockable.getDockParent() ){
missing++;
}
}
DockStation newParent = dockable.getDockParent();
if( newParent instanceof StackDockStation ){
newParent.setFrontDockable( dockable );
}
currentStation = null;
currentDockable = null;
}
public boolean forceAccept( DockStation parent, Dockable child ){
return parent != currentStation || child != currentDockable;
}
private DockableProperty copyAndSetStackLocation( DockableProperty property, int delta ){
if( property == null ){
return null;
}
property = property.copy();
DockableProperty last = property;
while( last.getSuccessor() != null ){
last = last.getSuccessor();
}
if( last instanceof StackDockProperty ){
((StackDockProperty)last).setIndex( ((StackDockProperty)last).getIndex() + delta );
}
else{
StackDockProperty stack = new StackDockProperty( delta );
last.setSuccessor( stack );
}
return property;
}
}