objectdraw
Class Drawable2D

java.lang.Object
  objectdraw.Drawable
      objectdraw.Drawable2D

All Implemented Interfaces:

Serializable, Drawable2DInterface, DrawableInterface

Direct Known Subclasses:

Resizable2D, Text

abstract class Drawable2D
extends Drawable
implements Drawable2DInterface

Drawable2D extends Drawable and defines a set of accessor methods for the width, height, and location of Drawable objects. It also defines methods to determine if objects overlap.

Version:

1.1.1 released February 2005

Field Summary

Fields inherited from class objectdraw.Drawable

canvasContent, color, shown

Constructor Summary

Drawable2D()

Method Summary

boolean	contains(Location point) Determines if a particular position on the DrawingCanvas is contained within the object.
(package private) void	draw(Graphics g) Draws the object.
(package private) abstract Bounds	getBounds() Gets the object's bounding rectangle
abstract double	getHeight() Get the height of a graphical object
Location	getLocation() Get a graphical object's position
abstract double	getWidth() Get the width of a graphical object
double	getX() Get the x coordinate of left edge of rectangle bounding the object
double	getY() Get the y coordinate of top edge of rectangle bounding the object
boolean	overlaps(Drawable2DInterface item) Determines if another Drawable's bounding rectangle overlaps with this object's bounding rectangle.

Methods inherited from class objectdraw.Drawable

addToCanvas, clearCanvasContent, getCanvas, getColor, hide, isHidden, move, moveTo, moveTo, removeFromCanvas, sendBackward, sendForward, sendToBack, sendToFront, setCanvasContent, setColor, setStateChanged, show

Methods inherited from class java.lang.Object

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

Methods inherited from interface objectdraw.DrawableInterface

addToCanvas, getCanvas, getColor, hide, isHidden, move, moveTo, moveTo, removeFromCanvas, sendBackward, sendForward, sendToBack, sendToFront, setColor, show

Constructor Detail

Drawable2D

Drawable2D()

Method Detail

contains

public boolean contains(Location point)

Description copied from interface: DrawableInterface

Determines if a particular position on the DrawingCanvas is contained within the object.

Specified by:

contains in interface DrawableInterface

Specified by:

contains in class Drawable

Parameters:

point - the position on the canvas.

Returns:

true if point is contained in the object, false otherwise.

draw

void draw(Graphics g)

Draws the object.

Overrides:

draw in class Drawable

Parameters:

g - the graphics context into which the object is drawn

getBounds

abstract Bounds getBounds()

Gets the object's bounding rectangle

Returns:

the object's bounding rectangle

getHeight

public abstract double getHeight()

Description copied from interface: Drawable2DInterface

Get the height of a graphical object

Specified by:

getHeight in interface Drawable2DInterface

Returns:

the height of the object's bounding rectangle

getLocation

public Location getLocation()

Description copied from interface: Drawable2DInterface

Get a graphical object's position

Specified by:

getLocation in interface Drawable2DInterface

Returns:

the location of the upper left corner of the object's bounding rectangle

getWidth

public abstract double getWidth()

Description copied from interface: Drawable2DInterface

Get the width of a graphical object

Specified by:

getWidth in interface Drawable2DInterface

Returns:

the width of the object's bounding rectangle

getX

public double getX()

Description copied from interface: Drawable2DInterface

Get the x coordinate of left edge of rectangle bounding the object

Specified by:

getX in interface Drawable2DInterface

Returns:

the x coordinate of the upper left corner of the object's bounding rectangle

getY

public double getY()

Description copied from interface: Drawable2DInterface

Get the y coordinate of top edge of rectangle bounding the object

Specified by:

getY in interface Drawable2DInterface

Returns:

the y coordinate of the upper left corner of the object's bounding rectangle

overlaps

public boolean overlaps(Drawable2DInterface item)

Description copied from interface: Drawable2DInterface

Determines if another Drawable's bounding rectangle overlaps with this object's bounding rectangle.

Specified by:

overlaps in interface Drawable2DInterface

Parameters:

item - the other object

Returns:

true if item intersects this object; false otherwise.