rectangl Specification Sheet

Portable Object Compiler (c) 1997. All Rights Reserved.

Rectangle

Inherits from: Object

Class Description

Rectangle instances are pairs of Point objects. It is largely ICpak101 compatible. For concepts such as left, top, bottom etc. it is assumed that the origin has smaller x and y coordinates than corner. Unlike ICpak101, this is not enforced, and negative values for height, width etc. are allowed.

Method types

Creation

Interrogation

Comparing

Arithmetic

Printing

Methods

new

+new
Returns a new rectangle with origin and corner at (0,0).

origin:corner:

-origin:pcorner:q
Sets origin and corner to p and q.

origin:corner:

+origin:pcorner:q
Returns a new rectangle with origin and corner set to p and q.

free

-free
Frees the origin and corner of the Point too.

left

- (int)left

right

- (int)right

top

- (int)top

bottom

- (int)bottom

width

- (int)width

height

- (int)height

origin

-origin

corner

-corner

contains:

- (BOOL)contains:aPoint
Yes if inside, or on a border of, the rectangle.

hash

- (unsigned)hash

isEqual:

- (BOOL)isEqual:aRectangle
Returns YES if aRectangle is some kind of rectangle, and if corner and origin are equal.

moveBy:

-moveBy:aPoint

printOn:

-printOn:(IOD)aFile