/*
 * Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
import java.awt.*;
import java.applet.Applet;

/* 
 * This is like the ShapesDemo applet, except that it handles fonts more
 * carefully.
 */

public class FontDemo extends Applet {
    final static int maxCharHeight = 15;

    public void init() {
	validate();
    }

    public void paint(Graphics g) {
        Dimension d = size();
	int x = 5;
	int y = 7;

	Color bg = getBackground();
	Color fg = getForeground();

	int gridWidth = d.width / 7;
	int gridHeight = d.height / 2;
        int stringY;
	int rectWidth = gridWidth - 2*x;
	int rectHeight; 

        boolean fontFits = false;
	Font font = g.getFont();
	FontMetrics fontMetrics = g.getFontMetrics();
	while (!fontFits) {
            if ((fontMetrics.getHeight() <= maxCharHeight) 
	        && (fontMetrics.stringWidth("drawRoundRect()") 
	            <= gridWidth)) {
		fontFits = true;
	    } else {
	    //At first, accidentally left out "g.", which worked
	    //but fontMetrics never changed.
	        g.setFont(font = new Font(font.getName(),
	    			        font.getStyle(),
				        font.getSize() - 1));
	        fontMetrics = g.getFontMetrics();
	    }
	}

	stringY = gridHeight - 5 - fontMetrics.getDescent();
	rectHeight = stringY - fontMetrics.getMaxAscent() - y - 2;

	g.setColor(bg);
	g.draw3DRect(0, 0, d.width - 1, d.height - 1, true);
	g.draw3DRect(3, 3, d.width - 7, d.height - 7, false);
	g.setColor(fg);

	// drawLine() 
	g.drawLine(x, y+rectHeight-1, x + rectWidth, y); // x1, y1, x2, y2
	g.drawString("drawLine()", x, stringY);
	x += gridWidth;

	// drawRect() 
	g.drawRect(x, y, rectWidth, rectHeight); // x, y, width, height
	g.drawString("drawRect()", x, stringY);
	x += gridWidth;

	// draw3DRect() 
	g.setColor(bg);
	g.draw3DRect(x, y, rectWidth, rectHeight, true);
	g.setColor(fg);
	g.drawString("draw3DRect()", x, stringY);
	x += gridWidth;

	// drawRoundRect() 
	g.drawRoundRect(x, y, rectWidth, rectHeight, 10, 10); // x, y, w, h, arcw, arch
	g.drawString("drawRoundRect()", x, stringY);
	x += gridWidth;

	// drawOval() 
	g.drawOval(x, y, rectWidth, rectHeight); // x, y, w, h
	g.drawString("drawOval()", x, stringY);
	x += gridWidth;

	// drawArc() 
	g.drawArc(x, y, rectWidth, rectHeight, 90, 135); // x, y, w, h
	g.drawString("drawArc()", x, stringY);
	x += gridWidth;

	// drawPolygon() 
	Polygon polygon = new Polygon();
	polygon.addPoint(x, y);
	polygon.addPoint(x+rectWidth, y+rectHeight);
	polygon.addPoint(x, y + rectHeight);
	polygon.addPoint(x + rectWidth, y);
	polygon.addPoint(x, y);
	g.drawPolygon(polygon); 
	g.drawString("drawPolygon()", x, stringY);

	x = 5 + gridWidth;
	y += gridHeight;
	stringY += gridHeight;

	// fillRect() 
	g.fillRect(x, y, rectWidth, rectHeight); // x, y, width, height
	g.drawString("fillRect()", x, stringY);
	x += gridWidth;

	// fill3DRect() 
	g.setColor(bg);
	g.fill3DRect(x, y, rectWidth, rectHeight, true);
	g.setColor(fg);
	g.drawString("fill3DRect()", x, stringY);
	x += gridWidth;

	// fillRoundRect() 
	g.fillRoundRect(x, y, rectWidth, rectHeight, 10, 10); // x, y, w, h, arcw, arch
	g.drawString("fillRoundRect()", x, stringY);
	x += gridWidth;

	// fillOval() 
	g.fillOval(x, y, rectWidth, rectHeight); // x, y, w, h
	g.drawString("fillOval()", x, stringY);
	x += gridWidth;

	// fillArc() 
	g.fillArc(x, y, rectWidth, rectHeight, 90, 135); // x, y, w, h
	g.drawString("fillArc()", x, stringY);
	x += gridWidth;

	// fillPolygon() 
	Polygon filledPolygon = new Polygon();
	filledPolygon.addPoint(x, y);
	filledPolygon.addPoint(x+rectWidth, y+rectHeight);
	filledPolygon.addPoint(x, y+rectHeight);
	filledPolygon.addPoint(x+rectWidth, y);
	filledPolygon.addPoint(x, y);
	g.fillPolygon(filledPolygon); 
	g.drawString("fillPolygon()", x, stringY);
    }
}