PrintCommand.java

/*
 * This file is part of the OpenSCADA project
 * Copyright (C) 2006-2011 TH4 SYSTEMS GmbH (http://th4-systems.com)
 *
 * OpenSCADA is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenSCADA 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenSCADA. If not, see
 * <http://opensource.org/licenses/lgpl-3.0.html> for a copy of the LGPLv3 License.
 */

package org.openscada.hd.ui.printing;

import java.util.Map;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.swt.printing.PrintDialog;
import org.eclipse.swt.printing.Printer;
import org.eclipse.swt.printing.PrinterData;
import org.openscada.hd.Value;
import org.openscada.hd.ValueInformation;
import org.openscada.hd.ui.connection.handler.AbstractQueryHandler;
import org.openscada.hd.ui.data.AbstractQueryBuffer;

public class PrintCommand extends AbstractQueryHandler
{

    @Override
    public Object execute ( final ExecutionEvent event ) throws ExecutionException
    {
        for ( final AbstractQueryBuffer query : getQueries () )
        {
            printQuery ( query );
        }
        return null;
    }

    private void printQuery ( final AbstractQueryBuffer query )
    {
        final ValueInformation[] vis = query.getValueInformation ();
        final Map<String, Value[]> values = query.getValues ();

        final PrintDialog dlg = new PrintDialog ( getWorkbenchWindow ().getShell () );

        final PrinterData printerData = dlg.open ();

        if ( printerData == null )
        {
            return;
        }

        printerData.orientation = PrinterData.LANDSCAPE;

        final Printer printer = new Printer ( printerData );

        try
        {
            final PrintProcessor processor = new PrintProcessor ( vis, values );
            processor.print ( printer );
        }
        finally
        {
            printer.dispose ();
        }
    }
}