Subversion Repositories mkgmap

/*
 * Copyright (C) 2011.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * This program 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
 * General Public License for more details.
 */
package uk.me.parabola.imgfmt.app.typ;

import java.nio.charset.CharsetEncoder;

import uk.me.parabola.imgfmt.app.ImgFileWriter;

/**
 * Holds the data for a polygon style.
 *
 * @author Steve Ratcliffe
 */
public class TypPolygon extends TypElement {

        private static final int F_LABEL = 0x10;
        private static final int F_EXTENDED = 0x20;

        public void write(ImgFileWriter writer, CharsetEncoder encoder) {
                offset = writer.position();

                ColourInfo colourInfo = xpm.getColourInfo();
                int scheme = colourInfo.getColourScheme();
                if (!labels.isEmpty())
                        scheme |= F_LABEL;
                if (fontStyle != 0 || dayFontColour != null)
                        scheme |= F_EXTENDED;

                writer.put((byte) scheme);

                colourInfo.write(writer);
                if (xpm.hasImage())
                        xpm.writeImage(writer);

                // The labels have a length byte to show the number of bytes following. There is
                // also a flag in the length. The strings have a language number proceeding them.
                // The strings themselves are null terminated.
                if ((scheme & F_LABEL) != 0)
                        writeLabelBlock(writer, encoder);

                // The extension section hold font style and colour information for the labels.
                if ((scheme & F_EXTENDED) != 0) {
                        writeExtendedFontInfo(writer);
                }
        }
}