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/* 
 * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
 * For details on use and redistribution please refer to the 
 * LICENSE file included with these sources."
 */

package org.apache.fop.apps;
/*
  originally contributed by
  Juergen Verwohlt: Juergen.Verwohlt@jCatalog.com,
  Rainer Steinkuhle: Rainer.Steinkuhle@jCatalog.com,
  Stanislav Gorkhover: Stanislav.Gorkhover@jCatalog.com

 */
import org.apache.fop.messaging.MessageHandler;
import org.apache.fop.viewer.*;
import org.apache.fop.render.awt.*;


import javax.swing.UIManager;
import java.awt.*;

// SAX
import org.xml.sax.XMLReader;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;



// Java
import java.io.FileReader;
import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URL;
import java.util.*;



/**
 * initialize AWT previewer
 */

public class AWTStarter extends CommandLineStarter {

    PreviewDialog frame;
    AWTRenderer renderer;
    public static String TRANSLATION_PATH = "/org/apache/fop/viewer/resources/";

    private Translator resource;

    public AWTStarter (CommandLineOptions commandLineOptions) {
        super(commandLineOptions);
        init();
    }

    private void init () {
        try {
            UIManager.setLookAndFeel(
              new javax.swing.plaf.metal.MetalLookAndFeel());
        } catch (Exception e) {
            e.printStackTrace();
        }

        String language = commandLineOptions.getLanguage();

        if (language == null)
            language = System.getProperty("user.language");

        resource = getResourceBundle(TRANSLATION_PATH + "resources." +
                                     language);

        UserMessage.setTranslator(
          getResourceBundle(TRANSLATION_PATH + "messages." +
                            language));

        resource.setMissingEmphasized(false);
        renderer = new AWTRenderer(resource);
        frame = createPreviewDialog(renderer, resource);
        renderer.setProgressListener(frame);
        renderer.setComponent(frame);
        MessageHandler.setOutputMethod(MessageHandler.EVENT);
        MessageHandler.addListener(frame);
    }


    public void run () {
		Driver driver = new Driver();
        if (errorDump) {
            driver.setErrorDump(true);
        }

        //init parser
        frame.progress(resource.getString("Init parser") + " ...");
        XMLReader parser = inputHandler.getParser();

        if (parser == null) {
            MessageHandler.errorln("ERROR: Unable to create SAX parser");
            System.exit(1);
        }

        setParserFeatures(parser);

        try {
            driver.setRenderer(renderer);

            // init mappings: time
            frame.progress(resource.getString("Init mappings") + " ...");

            driver.addElementMapping("org.apache.fop.fo.StandardElementMapping");
            driver.addElementMapping("org.apache.fop.svg.SVGElementMapping");
            driver.addPropertyList("org.apache.fop.fo.StandardPropertyListMapping");
            driver.addPropertyList("org.apache.fop.svg.SVGPropertyListMapping");

            // build FO tree: time
            frame.progress(resource.getString("Build FO tree") + " ...");
            driver.buildFOTree(parser, inputHandler.getInputSource());

            // layout FO tree: time
            frame.progress(resource.getString("Layout FO tree") + " ...");
            driver.format();

            // render: time
            frame.progress(resource.getString("Render") + " ...");
            driver.render();

            frame.progress(resource.getString("Show"));
            frame.showPage();

        } catch (Exception e) {
            MessageHandler.errorln("FATAL ERROR: " + e.getMessage());
            e.printStackTrace();
            System.exit(1);
        }

    }

    protected PreviewDialog createPreviewDialog(AWTRenderer renderer,
            Translator res) {
        PreviewDialog frame = new PreviewDialog(renderer, res);
        frame.validate();

        // center window
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension frameSize = frame.getSize();
        if (frameSize.height > screenSize.height)
            frameSize.height = screenSize.height;
        if (frameSize.width > screenSize.width)
            frameSize.width = screenSize.width;
        frame.setLocation((screenSize.width - frameSize.width) / 2,
                          (screenSize.height - frameSize.height) / 2);
        frame.setVisible(true);
        return frame;
    }



    private SecureResourceBundle getResourceBundle(String path) {
        InputStream in = null;

        try {
            URL url = getClass().getResource(path);
            in = url.openStream();
        } catch (Exception ex) {
            MessageHandler.logln("Can't find URL to: <" + path + "> " +
                                 ex.getMessage());
        }
        return new SecureResourceBundle(in);
    }
}