Class RectangularShape

protected RectangularShape()

Default constructor.

public Object clone()

Create a new shape of the same run-time type with the same contents as this one.

Overrides:

clone in interface Object

Returns:

the clone

public boolean contains(Point2D p)

Tests if a point is inside the boundary of the shape.

Specified by:

contains in interface Shape

Parameters:

p - the point to test

Returns:

true if the point is inside the shape

Throws:

NullPointerException - if p is null

See Also:

contains(double, double)

public boolean contains(Rectangle2D r)

Tests if the shape completely contains the given rectangle.

Specified by:

contains in interface Shape

Parameters:

r - the rectangle to test

Returns:

true if r is contained in this shape

Throws:

NullPointerException - if r is null

See Also:

contains(double, double, double, double)

public Rectangle getBounds()

Returns a bounding box for this shape, in integer format. Notice that you may get a tighter bound with getBounds2D.

Specified by:

getBounds in interface Shape

Returns:

a bounding box

public double getCenterX()

Return the x coordinate of the center point of the framing rectangle.

Returns:

the central x coordinate

public double getCenterY()

Return the y coordinate of the center point of the framing rectangle.

Returns:

the central y coordinate

public Rectangle2D getFrame()

Return the frame around this object. Note that this may be a looser bounding box than getBounds2D.

Returns:

the frame, in double precision

See Also:

setFrame(double,double,double,double)

public abstract double getHeight()

Get the height of the framing rectangle.

Returns:

the height

public double getMaxX()

Get the maximum x coordinate in the frame. This is misnamed, or else Sun has a bug, because the implementation returns getX()+getWidth() even when getWidth() is negative.

Returns:

the maximum x coordinate

public double getMaxY()

Get the maximum y coordinate in the frame. This is misnamed, or else Sun has a bug, because the implementation returns getY()+getHeight() even when getHeight() is negative.

Returns:

the maximum y coordinate

public double getMinX()

Get the minimum x coordinate in the frame. This is misnamed, or else Sun has a bug, because the implementation returns getX() even when getWidth() is negative.

Returns:

the minimum x coordinate

public double getMinY()

Get the minimum y coordinate in the frame. This is misnamed, or else Sun has a bug, because the implementation returns getY() even when getHeight() is negative.

Returns:

the minimum y coordinate

public PathIterator getPathIterator(AffineTransform at,
 double flatness)

Return an iterator along the shape boundary. If the optional transform is provided, the iterator is transformed accordingly. The path is flattened until all segments differ from the curve by at most the value of the flatness parameter, within the limits of the default interpolation recursion limit of 1024 segments between actual points. Each call returns a new object, independent from others in use. The result is threadsafe if and only if the iterator returned by getPathIterator(AffineTransform) is as well.

Specified by:

getPathIterator in interface Shape

Parameters:

at - an optional transform to apply to the iterator

flatness - the desired flatness

Returns:

a new iterator over the boundary

Throws:

IllegalArgumentException - if flatness is invalid

Since:

1.2

public abstract double getWidth()

Get the width of the framing rectangle.

Returns:

the width

public abstract double getX()

Get the x coordinate of the upper-left corner of the framing rectangle.

Returns:

the x coordinate

public abstract double getY()

Get the y coordinate of the upper-left corner of the framing rectangle.

Returns:

the y coordinate

public boolean intersects(Rectangle2D r)

Tests if a rectangle and this shape share common internal points.

Specified by:

intersects in interface Shape

Parameters:

r - the rectangle to test

Returns:

true if the rectangle intersects this shpae

Throws:

NullPointerException - if r is null

See Also:

intersects(double, double, double, double)

public abstract boolean isEmpty()

Test if the shape is empty, meaning that no points are inside it.

Returns:

true if the shape is empty

public abstract void setFrame(double x,
 double y,
 double w,
 double h)

Set the framing rectangle of this shape to the given coordinate and size.

Parameters:

x - the new x coordinate

y - the new y coordinate

w - the new width

h - the new height

See Also:

getFrame()

public void setFrame(Point2D p,
 Dimension2D d)

Set the framing rectangle of this shape to the given coordinate and size.

Parameters:

p - the new point

d - the new dimension

Throws:

NullPointerException - if p or d is null

See Also:

getFrame()

public void setFrame(Rectangle2D r)

Set the framing rectangle of this shape to the given rectangle.

Parameters:

r - the new framing rectangle

Throws:

NullPointerException - if r is null

See Also:

getFrame()

public void setFrameFromCenter(double centerX,
 double centerY,
 double cornerX,
 double cornerY)

Set the framing rectangle of this shape using the center of the frame, and one of the four corners. The area will be positive.

Parameters:

centerX - the x coordinate at the center

centerY - the y coordinate at the center

cornerX - the x coordinate at a corner

cornerY - the y coordinate at a corner

public void setFrameFromCenter(Point2D center,
 Point2D corner)

Set the framing rectangle of this shape using the center of the frame, and one of the four corners. The area will be positive.

Parameters:

center - the center point

corner - a corner point

Throws:

NullPointerException - if either point is null

public void setFrameFromDiagonal(double x1,
 double y1,
 double x2,
 double y2)

Set the framing rectangle of this shape using two points on a diagonal. The area will be positive.

Parameters:

x1 - the first x coordinate

y1 - the first y coordinate

x2 - the second x coordinate

y2 - the second y coordinate

public void setFrameFromDiagonal(Point2D p1,
 Point2D p2)

Set the framing rectangle of this shape using two points on a diagonal. The area will be positive.

Parameters:

p1 - the first point

p2 - the second point

Throws:

NullPointerException - if either point is null