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/*
 * 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.wizard;

import java.awt.Rectangle;

import bibliothek.gui.dock.SplitDockStation.Orientation;
import bibliothek.gui.dock.station.split.Divideable;

/**
 * Represents a special {@link Divideable} that is at the end of the columns and allows the user to resize
 * the entire station.
 * @author Benjamin Sigg
 */
public class ColumnDividier implements Divideable{
	private WizardSplitDockStation station;
	
	public ColumnDividier( WizardSplitDockStation station ){
		this.station = station;
	}
	
	@Override
	public double getDividerAt( int x, int y ){
		double width = station.getWidth();
		double height = station.getHeight();
		
		switch( station.getSide() ){
			case RIGHT:
			case LEFT:
				return x / width;
			case BOTTOM:
			case TOP:
				return y / height;
			default:
				throw new IllegalStateException( "unknown side: " + station.getSide() );
		}
	}

	@Override
	public Rectangle getDividerBounds( double divider, Rectangle bounds ){
		if( bounds == null ){
			bounds = new Rectangle();
		}
		
		int gap = station.getDividerSize();
		int width = station.getWidth() - gap;
		int height = station.getHeight() - gap;
		
		switch( station.getSide() ){
			case RIGHT:
			case LEFT:
				bounds.x = (int)(divider * width);
				bounds.y = 0;
				bounds.width = gap;
				bounds.height = height + gap;
				break;
			case TOP:
			case BOTTOM:
				bounds.x = 0;
				bounds.width = width + gap;
				bounds.y = (int)(divider * height);
				bounds.height = gap;
		}
		return bounds;
	}

	@Override
	public Orientation getOrientation(){
		return station.getSide().getHeaderOrientation();
	}

	@Override
	public double getDivider(){
		switch( station.getSide() ){
			case RIGHT:
			case BOTTOM:
				return 0;
			case LEFT:
			case TOP:
				return 1;
			default:
				throw new IllegalStateException( "unknown side: " + station.getSide() );
		}
	}

	@Override
	public void setDivider( double dividier ){
		// ignored
	}

	@Override
	public double validateDivider( double divider ){
		return station.getWizardSplitLayoutManager().validateColumnDivider( divider );
	}
	
}