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java.awt.geom
Class RoundRectangle2D
java.lang.Object
java.awt.geom.RectangularShape
java.awt.geom.RoundRectangle2D
-
All Implemented Interfaces:
-
Shape
,
Cloneable
-
Direct Known Subclasses:
-
RoundRectangle2D.Double
,
RoundRectangle2D.Float
-
public abstract class RoundRectangle2D
- extends RectangularShape
The RoundRectangle2D class defines a rectangle with rounded corners defined by a location
(x,y),
(x, y),
a dimension
(w x h),
(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.
-
Since:
-
1.2
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.
this RoundRectangle2D.
|
boolean |
contains
(double x, double y, double w, double h)
Tests if the interior of
the Shape
this RoundRectangle2D
entirely contains the specified
set of
rectangular
area.
coordinates.
|
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
this RoundRectangle2D
intersects the interior of a specified
set of
rectangular
area.
coordinates.
|
void |
setFrame
(double x, double y, double w, double h)
Sets the location and size of the
framing rectangle
outer bounds
of this
Shape
RoundRectangle2D
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
|
RoundRectangle2D
protected RoundRectangle2D()
-
This is an abstract class that cannot be instantiated directly. Type-specific implementation subclasses are available for instantiation and provide a number of formats for storing the information necessary to satisfy the various accessor methods below.
-
Since:
-
1.2
-
See Also:
-
RoundRectangle2D.Float
,
RoundRectangle2D.Double
getArcWidth
public abstract double getArcWidth()
-
Gets the width of the arc that rounds off the corners.
-
-
Returns:
-
the width of the arc that rounds off the corners of this RoundRectangle2D.
-
Since:
-
1.2
getArcHeight
public abstract double getArcHeight()
-
Gets the height of the arc that rounds off the corners.
-
-
Returns:
-
the height of the arc that rounds off the corners of this RoundRectangle2D.
-
Since:
-
1.2
setRoundRect
public 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.
-
-
Parameters:
-
x
x, y
- the
X coordinate
coordinates
to which to set the location of this RoundRectangle2D -
y
w
- the
Y coordinate
width
to which to set
the location of
this RoundRectangle2D -
w
h
- the
width
height
to which to set this RoundRectangle2D -
h
arcWidth
- the
height
width
to which to set
the arc of
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
-
Since:
-
1.2
setRoundRect
public void setRoundRect(RoundRectangle2D rr)
-
Sets this RoundRectangle2D to be the same as the specified RoundRectangle2D.
-
-
Parameters:
-
rr - the specified RoundRectangle2D
-
Since:
-
1.2
setFrame
public void setFrame(double x,
double y,
double w,
double h)
-
Sets the location and size of the
framing rectangle
outer bounds
of this
Shape
RoundRectangle2D
to the specified rectangular values.
-
-
Specified by:
-
setFrame
in class
RectangularShape
-
-
Parameters:
-
x - the X coordinate of the upper-left corner of the specified rectangular shape
x, y - the coordinates to which to set the location of this RoundRectangle2D
-
y - the Y coordinate of the upper-left corner of the specified rectangular shape
w - the width to which to set this RoundRectangle2D
-
w - the width of the specified rectangular shape
-
h - the height of the specified rectangular shape
h - the height to which to set this RoundRectangle2D
-
Since:
-
1.2
-
See Also:
-
RectangularShape.getFrame()
contains
public boolean contains(double x,
double y)
-
Tests if the specified coordinates are inside the boundary of
the Shape.
this RoundRectangle2D.
-
-
Parameters:
-
x - the specified X coordinate to be tested
-
y - the specified Y coordinate to be tested
x, y - the coordinates to test
-
Returns:
-
true if the specified coordinates are inside the
Shape boundary;
boundary of this RoundRectangle2D;
false otherwise. -
Since:
-
1.2
intersects
public 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. 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.
Tests if the interior of this RoundRectangle2D intersects the interior of a specified set of rectangular coordinates.
The Shape.intersects() method allows a Shape implementation to conservatively return true when:
-
there is a high probability that the rectangular area and the Shape intersect, but
-
the calculations to accurately determine this intersection are prohibitively expensive.
This means that for some 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.
-
-
Parameters:
-
x
x, y
- the
X coordinate
coordinates
of the
upper-left
upper left
corner of the specified
set of
rectangular
area
coordinates
-
y - the Y coordinate of the upper-left corner of the specified rectangular area
w - the width of the specified set of rectangular coordinates
-
w - the width of the specified rectangular area
-
h - the height of the specified
set of
rectangular
area
coordinates
-
Returns:
-
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.
true if the interior of this RoundRectangle2D intersects the interior of the specified set of rectangular coordinates.
-
Since:
-
1.2
-
See Also:
-
Area
contains
public boolean contains(double x,
double y,
double w,
double h)
-
Tests if the interior of the 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.
Tests if the interior of this RoundRectangle2D entirely contains the specified set of rectangular coordinates.
The Shape.contains() method allows a Shape implementation to conservatively return false when:
-
the intersect method returns true and
-
the calculations to determine whether or not the Shape entirely contains the rectangular area are prohibitively expensive.
This means that for some 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.
-
-
Parameters:
-
x - the X coordinate of the upper-left corner of the specified rectangular area
x, y - the coordinates of the specified set of rectangular coordinates
-
y - the Y coordinate of the upper-left corner of the specified rectangular area
w - the width of the specified set of rectangular coordinates
-
w - the width of the specified rectangular area
-
h - the height of the specified
set of
rectangular
area
coordinates
-
Returns:
-
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.
true if the interior of this RoundRectangle2D entirely contains the specified set of rectangular coordinates; false otherwise.
-
Since:
-
1.2
-
See Also:
-
Area
,
Shape.intersects(double, double, double, double)
getPathIterator
public PathIterator getPathIterator(AffineTransform at)
-
Returns an iteration object that defines the boundary of this RoundRectangle2D. The iterator for this class is multi-threaded 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.
-
-
Parameters:
-
at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired
-
Returns:
-
the PathIterator object that returns the geometry of the outline of this RoundRectangle2D, one segment at a time.
-
Since:
-
1.2
hashCode
public int hashCode()
-
Returns the hashcode for this RoundRectangle2D.
-
-
Overrides:
-
hashCode
in class
Object
-
-
Returns:
-
the hashcode for this RoundRectangle2D.
-
Since:
-
1.6
-
See Also:
-
Object.equals(java.lang.Object)
,
Hashtable
equals
public boolean equals(Object obj)
-
Determines whether or not the specified 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.
-
-
Overrides:
-
equals
in class
Object
-
-
Parameters:
-
obj - an Object to be compared with this RoundRectangle2D.
-
Returns:
-
true if obj is an instance of RoundRectangle2D and has the same values; false otherwise.
-
Since:
-
1.6
-
See Also:
-
Object.hashCode()
,
Hashtable