/* 
 * 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
  Stanislav Gorkhover: stanislav.gorkhover@jcatalog.com
  jCatalog Software AG
 */


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

import java.awt.Graphics;
import java.awt.print.*;
import java.io.OutputStream;
import java.io.IOException;
import java.util.Vector;

import org.apache.fop.render.awt.AWTRenderer;
import org.apache.fop.layout.AreaTree;
import org.apache.fop.layout.Page;
import org.apache.fop.messaging.MessageHandler;


/**
 * This class prints a xsl-fo dokument without interaction.
 * At the moment java has not the possibility to configure the printer and it's
 * options without interaction (30.03.2000).
 * This class allows to print a set of pages (from-to), even/odd pages and many copies.
 * - Print from page xxx: property name - start, value int
 * - Print to page xxx: property name - end, value int
 * - Print even/odd pages: property name - even, value boolean
 * - Print xxx copies: property name - copies, value int
 *
 */
public class PrintStarter extends CommandLineStarter {

    public PrintStarter (CommandLineOptions options) {
        super(options);
    }

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

        String version = Version.getVersion();
        MessageHandler.errorln(version);

        XMLReader parser = inputHandler.getParser();
        
        setParserFeatures(parser,errorDump);

        PrintRenderer renderer = new PrintRenderer();

        try {
            driver.setRenderer(renderer);
            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");
            driver.buildFOTree(parser, inputHandler.getInputSource());
            driver.format();
            driver.render();
        } catch (Exception e) {
            MessageHandler.errorln("FATAL ERROR: " + e.getMessage());
            if (errorDump) {
                e.printStackTrace();
            }

            System.exit(1);
        }

        int copies = PrintRenderer.getIntProperty("copies", 1);
        renderer.setCopies(copies);

        PrinterJob pj = PrinterJob.getPrinterJob();
        pj.setPageable(renderer);

        pj.setCopies(copies);
        try {
            pj.print();
        } catch (PrinterException pe) {
            pe.printStackTrace();
        }
    }


    static class PrintRenderer extends AWTRenderer {

        static int EVEN_AND_ALL = 0;
        static int EVEN = 1;
        static int ODD = 2;

        int startNumber;
        int endNumber;
        int mode = EVEN_AND_ALL;
        int copies = 1;

        PrintRenderer() {
            super(null);

            startNumber = getIntProperty("start", 1) - 1;
            endNumber = getIntProperty("end", -1);

            mode = EVEN_AND_ALL;
            String str = System.getProperty("even");
            if (str != null) {
                try {
                    mode = Boolean.valueOf(str).booleanValue() ? EVEN : ODD;
                } catch (Exception e) {
                }
            }

        }


        static int getIntProperty(String name, int def) {
            String propValue = System.getProperty(name);
            if (propValue != null) {
                try {
                    return Integer.parseInt(propValue);
                } catch (Exception e) {
                    return def;
                }
            } else {
                return def;
            }
        }

        public void render(AreaTree areaTree,
                           OutputStream stream) throws IOException {
            tree = areaTree;
            if (endNumber == -1) {
                endNumber = tree.getPages().size();
            }

            Vector numbers = getInvalidPageNumbers();
            for (int i = numbers.size() - 1; i > -1; i--)
                tree.getPages().removeElementAt(
                  Integer.parseInt((String) numbers.elementAt(i)));

        }

        public void renderPage(Page page) {
            pageWidth = (int)((float) page.getWidth() / 1000f);
            pageHeight = (int)((float) page.getHeight() / 1000f);
            super.renderPage(page);
        }


        private Vector getInvalidPageNumbers() {

            Vector vec = new Vector();
            int max = tree.getPages().size();
            boolean isValid;
            for (int i = 0; i < max; i++) {
                isValid = true;
                if (i < startNumber || i > endNumber) {
                    isValid = false;
                } else if (mode != EVEN_AND_ALL) {
                    if (mode == EVEN && ((i + 1) % 2 != 0))
                        isValid = false;
                    else if (mode == ODD && ((i + 1) % 2 != 1))
                        isValid = false;
                }

                if (!isValid)
                    vec.add(i + "");
            }

            return vec;
        }

        void setCopies(int val) {
            copies = val;
            Vector copie = tree.getPages();
            for (int i = 1; i < copies; i++) {
                tree.getPages().addAll(copie);
            }

        }

    } // class PrintRenderer
} // class PrintCommandLine