// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.forms.client.nonpublic;

import org.litesoft.ui.def.nonpublic.support.*;

public class TwoDimensionalHorizontalPeerDeterminer extends HorizontalPeerDeterminer
{
    private int mCurRow = 0;
    private int mCurCol = 0;
    private int mColumns;
    private int[] mPeersPerRow;

    public TwoDimensionalHorizontalPeerDeterminer( UiLayoutTwoDimensionalDef pUiDef )
    {
        super( pUiDef, false );
        ComponentGrid grid = pUiDef.getComponentGrid();
        mColumns = grid.getColumns();
        int zRows = grid.getRows();
        mPeersPerRow = new int[zRows]; // all ZERO
        for ( int row = 0; row < zRows; row++ )
        {
            for ( int col = 0; col < mColumns; col++ )
            {
                if ( !grid.getCell( row, col ).isEffectivelyEmpty() )
                {
                    mPeersPerRow[row]++;
                }
            }
        }
    }

    public Object next()
    {
        if ( hasNext() )
        {
            mHorizontalPeers = (mPeersPerRow[mCurRow] > 1);
            if ( ++mCurCol >= mColumns )
            {
                mCurRow++;
                mCurCol = 0;
            }
        }
        return super.next();
    }
}