NAME
Rectangle - Portable Object Compiler Rectangle class
Rectangle
Inherits from:
Object
Class Description
Rectangle instances are pairs of Point objects. It is mostly Squeak and Stepstone ICpak101 compatible.
Method types
Creation
* new
* origin:corner:
* origin:extent:
* origin::corner::
* origin::extent::
* free
Motion
* origin:
* corner:
* origin:corner:
* extent::
* extent:
* origin::
* corner::
Comparing
* contains:
* hash
* isEqual:
Interrogation
* left
* right
* top
* bottom
* width
* height
* origin
* topLeft
* topRight
* topCenter
* corner
* bottomLeft
* bottomCenter
* bottomRight
* center
* leftCenter
* rightCenter
* extent
* quickMerge:
Arithmetic
* moveBy:
* translateBy:
* align:with:
Printing
* printOn:
Methods
new
+ new
Returns a new rectangle with origin and corner at (0,0).
origin:corner:
+ origin : p corner : q
Returns a new rectangle with origin and corner set to p and q .
origin:extent:
+ origin : p extent : q
origin::corner::
+ origin :(int) x1 :(int) y1 corner :(int) x2 :(int) y2
origin::extent::
+ origin :(int) x :(int) y extent :(int) w :(int) h
free
- free
Frees the origin and corner of the Point too.
origin:
- origin : p
corner:
- corner : q
origin:corner:
- origin : p corner : q
Sets origin and corner to p and q .
extent::
- extent :(int) w :(int) h
extent:
- extent : q
origin::
- origin :(int) x1 :(int) y1
corner::
- corner :(int) x1 :(int) y1
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.
left
- ( int ) left
right
- ( int ) right
top
- ( int ) top
bottom
- ( int ) bottom
width
- ( int ) width
height
- ( int ) height
origin
- origin
topLeft
- topLeft
Same as origin .
topRight
- topRight
Answer the point at the top right corner of the receiver's top horizontal.
topCenter
- topCenter
Answer the point at the center of the receiver's top horizontal.
corner
- corner
bottomLeft
- bottomLeft
Returns the point at the left edge of the bottom horizontal line of the receiver(or bottomLeft for short).
bottomCenter
- bottomCenter
Answer the point at the center of the receiver's bottom horizontal.
bottomRight
- bottomRight
Same as corner .
center
- center
Return the point at the center of the receiver.
leftCenter
- leftCenter
Return the point at the center of the receiver's left vertical line.
rightCenter
- rightCenter
Return the point at the center of the receiver's left vertical line.
extent
- extent
Return a new Point, set to the width and height of the rectangle.
quickMerge:
- quickMerge : rect
Return the receiver if it encloses the given rectangle or the merge of the two rectangles if it doesn't. This method is an optimization to reduce extra rectangle creations.
moveBy:
- moveBy : aPoint
translateBy:
- translateBy : p
This method is like moveBy: , but returns a new rectangle instead of modifying the receiver.
align:with:
- align : p1 with : p2
Answer a rectangle that is translated by p2 - p1 .
printOn:
- printOn :(IOD) aFile