package BitmapFont;import java.util.*;import java.awt.*;import java.awt.image.*;import java.io.*;import gl4java.*;import gl4java.awt.*;import gl4java.GLFunc;import BitmapFont.*;public class BitmapFonts {        int nofchs; // number of characters    int pointSize; // point size    int maxWidth; // maximum width    int height;    int leading;    int ascent;    int descent;        BitmapFont[] fonts;    int[] indexByChar;    static final char minChar = 32;    static final char maxChar = 127;    static final int maxAllowedWidth = 100;    static final int maxAllowedHeight = 100;    public BitmapFonts() {	// do nothing	indexByChar = new int[maxChar+1];	for(int i=0; i<=maxChar; i++) {	    // if it doesn't exist, use the first one	    // which happens to be " " in our case	    indexByChar[i] = 0;	}	    }    public void generate(String fname, int fsize) {	nofchs = maxChar-minChar+1;	BufferedImage bim = new BufferedImage(maxAllowedWidth, maxAllowedHeight, BufferedImage.TYPE_INT_RGB);	int[] B = new int[maxAllowedWidth*maxAllowedHeight];	Graphics g =  bim.getGraphics();	g.setFont(new Font(fname, Font.BOLD, fsize));	FontMetrics fm = g.getFontMetrics();	pointSize = fsize;	maxWidth = 0;	ascent = fm.getAscent();	descent = fm.getDescent();	leading = fm.getLeading();	// use pointSize instead of getHeight, which has padding (leading, etc)	height = pointSize;	fonts = new BitmapFont[nofchs];	String ascii;	int i=0;	for(char ch = minChar; ch<=maxChar; ch++) {	    ascii = ""+ch;	    g.clearRect(0,0, maxAllowedWidth, maxAllowedHeight);	    g.setColor(Color.green);	    g.drawString(ascii, 0, fm.getLeading()+fm.getAscent());	    BitmapFont f = new BitmapFont(ch);	    f.generate(bim, B, fm);	    if(maxWidth<fm.charWidth(ch)) 		maxWidth = fm.charWidth(ch);	    fonts[i++] = f;	    indexByChar[ch] = i;	}    }        public void write(DataOutputStream fout) throws IOException {	fout.writeInt(nofchs);	fout.writeInt(pointSize);	fout.writeInt(maxWidth);	fout.writeInt(height);	fout.writeInt(leading);	fout.writeInt(ascent);	fout.writeInt(descent);	for(int i=0; i<nofchs; i++) {	    BitmapFont f = fonts[i];	    f.write(fout);	}    }    public void read(DataInputStream fin) throws IOException {	nofchs = fin.readInt();	pointSize = fin.readInt();	maxWidth = fin.readInt();	height = fin.readInt();	leading = fin.readInt();	ascent = fin.readInt();	descent = fin.readInt();	fonts = new BitmapFont[nofchs];	for(int i=0; i<nofchs; i++) {	    BitmapFont f = new BitmapFont();	    f.read(fin);	    fonts[i] = f;	    indexByChar[f.ch] = i;	}    }    public void print(boolean verbose) {	System.out.println("number of characters: "+nofchs);	System.out.println("point size: "+pointSize);	System.out.println("maximum width: "+maxWidth);	System.out.println("height: "+height);	System.out.println("leading: "+leading);	System.out.println("ascent: "+ascent);	System.out.println("descent: "+descent);		for(int i=0; i<nofchs; i++) {	    BitmapFont f = fonts[i];	    f.print(verbose);	}    }    public void setupGL(GLFunc gl, int offset) {	for(int i=0; i<nofchs; i++) {	    BitmapFont f = fonts[i];	    gl.glNewList(f.ch+offset, GLEnum.GL_COMPILE);	    gl.glBitmap(f.width, f.height, 0, descent, f.width, 0, f.data);	    gl.glEndList();	}    }    public int charWidth(char ch) {	return fonts[indexByChar[ch]].width;    }    public int getDescent() {	return descent;    }}