cs1.android

Class Rectangle

java.lang.Object

cs1.android.Shape

cs1.android.Rectangle

public class Rectangle
extends Shape

Representation of a rectangle drawn on the canvas.

Field Summary

Fields inherited from class cs1.android.Shape

DEFAULT_COLOR

Constructor Summary

Constructors

Constructor and Description
Rectangle(double cx, double cy, double w, double h) Creates a rectangle centered at the given coordinates with the given dimensions and default color.
Rectangle(Point cen, double w, double h) Creates a rectangle centered at the given point with the given dimensions and default color.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	contains(Point point) Determines if this rectangle contains the given point.
void	draw(android.graphics.Canvas canvas) Draws this rectangle on the given canvas.
Point	getCenter() Returns the center of this rectangle.
double	getHeight() Returns the height of this rectangle.
double	getWidth() Returns the width of this rectangle.
void	move(double dx, double dy) Moves this rectangle by the given displacement.

Methods inherited from class cs1.android.Shape

distance_squared, distance, draw, erase, getColor, getLabel, setColor, setColor, setLabel

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Rectangle

public Rectangle(double cx,
         double cy,
         double w,
         double h)

Creates a rectangle centered at the given coordinates with the given dimensions and default color.

Parameters:

cx - the x-coordinate of the rectangle center

cy - the y-coordinate of the rectangle center

w - the width the rectangle

h - the height of the rectangle

Rectangle

public Rectangle(Point cen,
         double w,
         double h)

Creates a rectangle centered at the given point with the given dimensions and default color.

Parameters:

cen - the center of the rectangle

w - the width the rectangle

h - the height of the rectangle

Method Detail

contains

public boolean contains(Point point)

Determines if this rectangle contains the given point.

Specified by:

contains in class Shape

Parameters:

point - the point to check for containment

Returns:

true if this rectangle contains the given point

draw

public void draw(android.graphics.Canvas canvas)

Draws this rectangle on the given canvas. Should not be used directly.

Specified by:

draw in class Shape

Parameters:

canvas - the canvas in which to draw this rectangle

getCenter

public Point getCenter()

Returns the center of this rectangle.

Specified by:

getCenter in class Shape

Returns:

the center of this rectangle

getHeight

public double getHeight()

Returns the height of this rectangle.

Returns:

the height of this rectangle

getWidth

public double getWidth()

Returns the width of this rectangle.

Returns:

the width of this rectangle

move

public void move(double dx,
        double dy)

Moves this rectangle by the given displacement.

Specified by:

move in class Shape

Parameters:

dx - the displacement in x

dy - the displacement in y