//
// Jeff Mark
// May 6, 1996
// CS 162
// Program 2 - Shapes Applet
//
import java.awt.*;
///////////////////////////////////////////////////////////////////////////////
// //
// Definition of the Shapes //
// //
///////////////////////////////////////////////////////////////////////////////
//
// The general structure of a "Shape"
//
public class Shapes
{
// Each shape is defined with at least 2 points and a color.
public Point point1;
public Point point2;
public Color c;
// Constructor
public Shapes() {
point1 = null;
point2 = null;
c = Color.black;
}
public void setColor(Color c) {
this.c = c;
}
public void setPoints(Point p1, Point p2) {
point1 = p1;
point2 = p2;
}
public void moveBy(Point delta) {
point1.x += delta.x;
point1.y += delta.y;
point2.x += delta.x;
point2.y += delta.y;
}
public void draw(Graphics g) {
g.setColor(c);
}
}
/*****************************************************************************/
/*****************************************************************************/
class Dot extends Shapes // Only uses one point
{
// Constructor
public Dot() {
super();
}
public void draw(Graphics g) {
super.draw(g);
g.fillRect(point2.x - 1, point2.y - 1, 2, 2);
}
}
/*****************************************************************************/
class Line extends Shapes
{
// Constructor
public Line() {
super();
}
public void draw(Graphics g) {
super.draw(g);
g.drawLine(point1.x, point1.y, point2.x, point2.y);
}
}
/*****************************************************************************/
class Square extends Shapes
{
// If the points are in the correct format or not
private Rectangle r = new Rectangle(0, 0, 0, 0);
// Constructor
public Square() {
super();
}
// Get the upper left and lower right points
private void fixPoints() {
int width, height;
width = Math.abs(point1.x - point2.x);
height = Math.abs(point1.y - point2.y);
// Find upper left point
r.x = (point1.x < point2.x) ? point1.x : point2.x;
r.y = (point1.y < point2.y) ? point1.y : point2.y;
// Put the height, width into p2
r.width = width;
r.height = height;
}
public void draw(Graphics g) {
super.draw(g);
// Put points in correct format (Upper left point, and height, width)
fixPoints();
g.fillRect(r.x, r.y, r.width, r.height);
}
}
/*****************************************************************************/
class Circle extends Shapes
{
// If the points are in the correct format or not
private Rectangle r = new Rectangle(0, 0, 0, 0);
// Constructor
public Circle() {
super();
}
// Get the upper left and lower right points
private void fixPoints() {
int width, height;
width = Math.abs(point1.x - point2.x);
height = Math.abs(point1.y - point2.y);
// Find upper left point
r.x = (point1.x < point2.x) ? point1.x : point2.x;
r.y = (point1.y < point2.y) ? point1.y : point2.y;
// Put the height, width into p2
r.width = width;
r.height = height;
}
public void draw(Graphics g) {
super.draw(g);
// Put points in correct format (Upper left point, and height, width)
fixPoints();
g.fillOval(r.x, r.y, r.width, r.height);
}
}