texobject.java

著名的开源仿真软件yale

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2002, 2003
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License as 
 *  published by the Free Software Foundation; either version 2 of the
 *  License, or (at your option) any later version. 
 *
 *  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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.tools;

public class TexObject {
    
    private String string;
    private int width, height;
    private static final int MARGIN = 1;
    private static final int FONT_HEIGHT = 3;

    public static final int OPERATOR_FORMAT = 1;
    public static final int CLASS_FORMAT    = 2;
    public static final int IO_FORMAT       = 3;

    public static final String[] COLOUR = {"red", "yellow", "magenta"};

    public TexObject() {
	string = "";
	width  = 0;
	height = 0;
    }

    public void add(TexObject o, int x, int y) {
	string += "\\put("+x+","+y+"){" + o.string + "}\n";
	width  = Math.max(width, x+o.width);
	height = Math.max(height, y+o.height);
    }

    public void addRectCentered(int x, int y, int w, int h, String str) {
	string += "\\put("+x+","+y+"){\\framebox("+w+","+h+"){"+str+"}}\n";
	width  = Math.max(width, x+w);
	height = Math.max(height, y+h);
    }


    public void addRectUL(int x, int y, int w, int h, String str) {
	addRectUL(x, y, w, h, str, -1);
    }
    public void addRectUL(int x, int y, int w, int h, String str, int color) {
	if (color != -1)
	    string += "{\\color{"+COLOUR[color]+"}\\put("+x+","+y+         "){\\rule{"+w*2+ "mm}{"+h*2+"mm}}}\n";
	string += "\\put("+x+","+y+         "){\\framebox("+w+ ","+h+           "){}}\n";
	string += "\\put("+x+","+(y+MARGIN)+"){\n\\makebox("+w+","+(h-2*MARGIN)+")[tl]{\n"+str+"\n}}\n";
	width  = Math.max(width,  x+w);
	height = Math.max(height, y+h);	
    }

    public void addVector(int x, int y, int w, String label) {
	string += "\\put("+x+","+y+"){\\vector(1,0){"+w+"}}\n";
	string += "\\put("+x+","+y+"){\\makebox("+w+","+FONT_HEIGHT+")[b]{"+label+"}}\n";
	width  = Math.max(width,  x+w);
	height = Math.max(height, y);	
    }

    public int getWidth() {
	return width;
    }

    public int getHeight() {
	return height;
    }

    public static String format(String s, int format) {
	switch(format) {
	case OPERATOR_FORMAT:
	    return "{\\sf\\small "+s+"}";
	case CLASS_FORMAT:
	    return "{\\tt\\small "+s+"}";
	case IO_FORMAT:
	    return "{\\sf\\footnotesize "+s+"}";
	default:
	    return s;
	}
    }

    public static String shortClassName(String lclass) {
	String c = new String(lclass);
	int p = -1;
	while ((p = c.indexOf(".")) >= 0) 
	    c = c.substring(p+1);
	return c;
    }

    public String toString() {
	return 
	    "\\setlength{\\unitlength}{0.2cm}\n"+
	    "\\begin{picture}("+width+","+height+")\n" +
	    string +
	    "\\end{picture}\n";
    }
    

    public static void main(String[] argv) {
	TexObject to = new TexObject();
	to.addRectUL(0,0,50,8,format("OperatorChain", OPERATOR_FORMAT));
	TexObject to2 = new TexObject();
	to2.addRectCentered(0,0,15,4,format("SVMLearner", CLASS_FORMAT) + " " + format("SVM", OPERATOR_FORMAT));
	to.add(to2,1,1);
	to.addVector(16,4,10,format("Example Set", IO_FORMAT));
	to.addVector(16,2,10,format("Model", IO_FORMAT));
	System.out.println(to);
    }

}