/*
 * Copyright (C) 2005 - 2006 JasperSoft Corporation.  All rights reserved. 
 * http://www.jaspersoft.com.
 *
 * Unless you have purchased a commercial license agreement from JasperSoft,
 * the following license terms apply:
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed WITHOUT ANY WARRANTY; and without 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 this program; if not, see http://www.gnu.org/licenses/gpl.txt
 * or write to:
 *
 * Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330,
 * Boston, MA  USA  02111-1307
 *
 *
 *
 *
 * FormatCommandRemoveSpaceV.java
 * 
 * Created on 9 mei 2005, 21:36
 *
 */

package it.businesslogic.ireport.gui.command;

import it.businesslogic.ireport.Band;
import it.businesslogic.ireport.OperationType;
import it.businesslogic.ireport.ReportElement;
import java.awt.Point;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Vector;


/**
 *
 *
 */
public class FormatCommandRemoveSpaceV extends FormatCommand {
    int actual_y;
    int available_height;
    Band activeBand ;
    ReportElement bottomElement;
    Vector myElements = null;
    Vector bands = null;
    
    {
        operationType = OperationType.EQUALS_SPACE_V;
    }
    
    boolean preCondition(){
        activeBand = (Band) ((ReportElement) this.getSelectedElements().firstElement()).getBand();
        int counter = 0;
        
        for (Iterator i = this.getSelectedElements().iterator(); i.hasNext(); ) {
            ReportElement re = (ReportElement) i.next();
            if (re.getBand() == activeBand) {
                counter++;
            }
        }
        return ( counter > 1 );
        
    }
    
    void preparation(){
        available_height = 0;
    }
    void executeDeeper(){
        // resetEnumeration();
        preparation();
        
        bands = getBands();
        
        for (Iterator h = bands.iterator(); h.hasNext(); ) {
            Band b = (Band) h.next();
            Vector bandElements = getBandElements(b);
            bandElements = sortYX( bandElements.elements());
            
            if (bandElements.size()>1) {
                ReportElement re = (ReportElement) bandElements.firstElement();
                actual_y = re.getPosition().y + re.getHeight() + available_height;
                
                // the highest element in the band doesn't have to be moved
                bandElements.removeElement(re);
                
                processElements(bandElements.elements());
            }
        }
    }
    
    public void modify() {
        re.setPosition(new Point(re.getPosition().x, actual_y) );
        actual_y += re.getHeight() + available_height;
    }
    
}
