TextW.java

// Copyright 2002, FreeHEP.
package org.freehep.graphicsio.emf.gdi;

import java.awt.Point;
import java.awt.Rectangle;
import java.io.IOException;

import org.freehep.graphicsio.emf.EMFConstants;
import org.freehep.graphicsio.emf.EMFInputStream;
import org.freehep.graphicsio.emf.EMFOutputStream;

/**
 * EMF Text
 * 
 * @author Mark Donszelmann
 * @version $Id: TextW.java,v 1.4 2009-08-17 21:44:44 murkle Exp $
 */
public class TextW implements EMFConstants {

	private Point pos;

	private String string;

	private int options;

	private int[] widths;

	private Rectangle bounds;

	public TextW(Point pos, String string, int options, Rectangle bounds,
			int[] widths) {
		this.pos = pos;
		this.string = string;
		this.options = options;
		this.bounds = bounds;
		this.widths = widths;
	}

	public TextW(EMFInputStream emf) throws IOException {
		pos = emf.readPOINTL();
		int sLen = emf.readDWORD();
		/* int sOffset = */ emf.readDWORD();
		options = emf.readDWORD();
		bounds = emf.readRECTL();
		/* int cOffset = */ emf.readDWORD();
		// FIXME: nothing done with offsets
		string = new String(emf.readBYTE(2 * sLen), "UTF-16LE");
		if ((2 * sLen) % 4 != 0) {
			for (int i = 0; i < 4 - (2 * sLen) % 4; i++) {
				emf.readBYTE();
			}
		}
		widths = new int[sLen];
		for (int i = 0; i < sLen; i++) {
			widths[i] = emf.readDWORD();
		}
	}

	public void write(EMFOutputStream emf) throws IOException {
		emf.writePOINTL(pos);
		emf.writeDWORD(string.length());
		emf.writeDWORD(8 + 28 + 40); // TagHeader + ExtTextOutA + Text
		emf.writeDWORD(options);
		emf.writeRECTL(bounds);
		int pad = (2 * string.length()) % 4;
		if (pad > 0) {
			pad = 4 - pad;
		}
		emf.writeDWORD(8 + 28 + 40 + 2 * string.length() + pad); // offset to
																	// character
																	// spacing
																	// array
		emf.writeBYTE(string.getBytes("UTF-16LE"));
		for (int i = 0; i < pad; i++) {
			emf.writeBYTE(0);
		}
		for (int i = 0; i < string.length(); i++) {
			emf.writeDWORD(widths[i]);
		}
	}

	@Override
	public String toString() {
		StringBuffer widthsS = new StringBuffer();
		for (int i = 0; i < string.length(); i++) {
			widthsS.append("," + widths[i]);
		}
		widthsS.append(']');
		widthsS.setCharAt(0, '[');
		return "  Text\n" + "    pos: " + pos + "\n" + "    options: " + options
				+ "\n" + "    bounds: " + bounds + "\n" + "    string: "
				+ string + "\n" + "    widths: " + widthsS;
	}
}