
Java™ Platform Standard Ed. 6 

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java.lang.Object java.awt.geom.RectangularShape java.awt.geom.RoundRectangle2D
public abstract class RoundRectangle2D
The RoundRectangle2D
class defines a rectangle with
rounded corners defined by a location (x,y)
, a
dimension (w x h)
, and the width and height of an arc
with which to round the corners.
This class is the abstract superclass for all objects that store a 2D rounded rectangle. The actual storage representation of the coordinates is left to the subclass.
Nested Class Summary  

static class 
RoundRectangle2D.Double
The Double class defines a rectangle with rounded
corners all specified in double coordinates. 
static class 
RoundRectangle2D.Float
The Float class defines a rectangle with rounded
corners all specified in float coordinates. 
Constructor Summary  

protected 
RoundRectangle2D()
This is an abstract class that cannot be instantiated directly. 
Method Summary  

boolean 
contains(double x,
double y)
Tests if the specified coordinates are inside the boundary of the Shape . 
boolean 
contains(double x,
double y,
double w,
double h)
Tests if the interior of the Shape entirely contains
the specified rectangular area. 
boolean 
equals(Object obj)
Determines whether or not the specified Object is
equal to this RoundRectangle2D . 
abstract double 
getArcHeight()
Gets the height of the arc that rounds off the corners. 
abstract double 
getArcWidth()
Gets the width of the arc that rounds off the corners. 
PathIterator 
getPathIterator(AffineTransform at)
Returns an iteration object that defines the boundary of this RoundRectangle2D . 
int 
hashCode()
Returns the hashcode for this RoundRectangle2D . 
boolean 
intersects(double x,
double y,
double w,
double h)
Tests if the interior of the Shape intersects the
interior of a specified rectangular area. 
void 
setFrame(double x,
double y,
double w,
double h)
Sets the location and size of the framing rectangle of this Shape to the specified rectangular values. 
abstract void 
setRoundRect(double x,
double y,
double w,
double h,
double arcWidth,
double arcHeight)
Sets the location, size, and corner radii of this RoundRectangle2D to the specified
double values. 
void 
setRoundRect(RoundRectangle2D rr)
Sets this RoundRectangle2D to be the same as the
specified RoundRectangle2D . 
Methods inherited from class java.awt.geom.RectangularShape 

clone, contains, contains, getBounds, getCenterX, getCenterY, getFrame, getHeight, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, getWidth, getX, getY, intersects, isEmpty, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal 
Methods inherited from class java.lang.Object 

finalize, getClass, notify, notifyAll, toString, wait, wait, wait 
Methods inherited from interface java.awt.Shape 

getBounds2D 
Constructor Detail 

protected RoundRectangle2D()
RoundRectangle2D.Float
,
RoundRectangle2D.Double
Method Detail 

public abstract double getArcWidth()
RoundRectangle2D
.public abstract double getArcHeight()
RoundRectangle2D
.public abstract void setRoundRect(double x, double y, double w, double h, double arcWidth, double arcHeight)
RoundRectangle2D
to the specified
double
values.
x
 the X coordinate to which to set the
location of this RoundRectangle2D
y
 the Y coordinate to which to set the
location of this RoundRectangle2D
w
 the width to which to set this
RoundRectangle2D
h
 the height to which to set this
RoundRectangle2D
arcWidth
 the width to which to set the arc of this
RoundRectangle2D
arcHeight
 the height to which to set the arc of this
RoundRectangle2D
public void setRoundRect(RoundRectangle2D rr)
RoundRectangle2D
to be the same as the
specified RoundRectangle2D
.
rr
 the specified RoundRectangle2D
public void setFrame(double x, double y, double w, double h)
Shape
to the specified rectangular values.
setFrame
in class RectangularShape
x
 the X coordinate of the upperleft corner of the
specified rectangular shapey
 the Y coordinate of the upperleft corner of the
specified rectangular shapew
 the width of the specified rectangular shapeh
 the height of the specified rectangular shapeRectangularShape.getFrame()
public boolean contains(double x, double y)
Shape
.
x
 the specified X coordinate to be testedy
 the specified Y coordinate to be tested
true
if the specified coordinates are inside
the Shape
boundary; false
otherwise.public boolean intersects(double x, double y, double w, double h)
Shape
intersects the
interior of a specified rectangular area.
The rectangular area is considered to intersect the Shape
if any point is contained in both the interior of the
Shape
and the specified rectangular area.
The Shape.intersects()
method allows a Shape
implementation to conservatively return true
when:
Shape
intersect, but
Shapes
this method might
return true
even though the rectangular area does not
intersect the Shape
.
The Area
class performs
more accurate computations of geometric intersection than most
Shape
objects and therefore can be used if a more precise
answer is required.
x
 the X coordinate of the upperleft corner
of the specified rectangular areay
 the Y coordinate of the upperleft corner
of the specified rectangular areaw
 the width of the specified rectangular areah
 the height of the specified rectangular area
true
if the interior of the Shape
and
the interior of the rectangular area intersect, or are
both highly likely to intersect and intersection calculations
would be too expensive to perform; false
otherwise.Area
public boolean contains(double x, double y, double w, double h)
Shape
entirely contains
the specified rectangular area. All coordinates that lie inside
the rectangular area must lie within the Shape
for the
entire rectanglar area to be considered contained within the
Shape
.
The Shape.contains()
method allows a Shape
implementation to conservatively return false
when:
intersect
method returns true
and
Shape
entirely contains the rectangular area are
prohibitively expensive.
Shapes
this method might
return false
even though the Shape
contains
the rectangular area.
The Area
class performs
more accurate geometric computations than most
Shape
objects and therefore can be used if a more precise
answer is required.
x
 the X coordinate of the upperleft corner
of the specified rectangular areay
 the Y coordinate of the upperleft corner
of the specified rectangular areaw
 the width of the specified rectangular areah
 the height of the specified rectangular area
true
if the interior of the Shape
entirely contains the specified rectangular area;
false
otherwise or, if the Shape
contains the rectangular area and the
intersects
method returns true
and the containment calculations would be too expensive to
perform.Area
,
Shape.intersects(double, double, double, double)
public PathIterator getPathIterator(AffineTransform at)
RoundRectangle2D
.
The iterator for this class is multithreaded safe, which means
that this RoundRectangle2D
class guarantees that
modifications to the geometry of this RoundRectangle2D
object do not affect any iterations of that geometry that
are already in process.
at
 an optional AffineTransform
to be applied to
the coordinates as they are returned in the iteration, or
null
if untransformed coordinates are desired
PathIterator
object that returns the
geometry of the outline of this
RoundRectangle2D
, one segment at a time.public int hashCode()
RoundRectangle2D
.
hashCode
in class Object
RoundRectangle2D
.Object.equals(java.lang.Object)
,
Hashtable
public boolean equals(Object obj)
Object
is
equal to this RoundRectangle2D
. The specified
Object
is equal to this RoundRectangle2D
if it is an instance of RoundRectangle2D
and if its
location, size, and corner arc dimensions are the same as this
RoundRectangle2D
.
equals
in class Object
obj
 an Object
to be compared with this
RoundRectangle2D
.
true
if obj
is an instance
of RoundRectangle2D
and has the same values;
false
otherwise.Object.hashCode()
,
Hashtable

Java™ Platform Standard Ed. 6 

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