javax.swing.border
Class EmptyBorder

java.lang.Object
  extended byjavax.swing.border.AbstractBorder
      extended byjavax.swing.border.EmptyBorder
All Implemented Interfaces:
Border, Serializable
Direct Known Subclasses:
BasicBorders.RolloverMarginBorder, BorderUIResource.EmptyBorderUIResource, MatteBorder, MetalBorders.RolloverMarginBorder

public class EmptyBorder
extends AbstractBorder
implements Serializable

A class which provides an empty, transparent border which takes up space but does no drawing.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

Author:
David Kloba
See Also:
Serialized Form

Field Summary
protected  int bottom
           
protected  int left
           
protected  int right
           
protected  int top
           
 
Constructor Summary
EmptyBorder(Insets borderInsets)
          Creates an empty border with the specified insets.
EmptyBorder(int top, int left, int bottom, int right)
          Creates an empty border with the specified insets.
 
Method Summary
 Insets getBorderInsets()
          Returns the insets of the border.
 Insets getBorderInsets(Component c)
          Returns the insets of the border.
 Insets getBorderInsets(Component c, Insets insets)
          Reinitialize the insets parameter with this Border's current Insets.
 boolean isBorderOpaque()
          Returns whether or not the border is opaque.
 void paintBorder(Component c, Graphics g, int x, int y, int width, int height)
          Does no drawing by default.
 
Methods inherited from class javax.swing.border.AbstractBorder
getInteriorRectangle, getInteriorRectangle, isLeftToRight
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

left

protected int left

right

protected int right

top

protected int top

bottom

protected int bottom
Constructor Detail

EmptyBorder

public EmptyBorder(int top,
                   int left,
                   int bottom,
                   int right)
Creates an empty border with the specified insets.

Parameters:
top - the top inset of the border
left - the left inset of the border
bottom - the bottom inset of the border
right - the right inset of the border

EmptyBorder

public EmptyBorder(Insets borderInsets)
Creates an empty border with the specified insets.

Parameters:
borderInsets - the insets of the border
Method Detail

paintBorder

public void paintBorder(Component c,
                        Graphics g,
                        int x,
                        int y,
                        int width,
                        int height)
Does no drawing by default.

Specified by:
paintBorder in interface Border
Overrides:
paintBorder in class AbstractBorder
Parameters:
c - the component for which this border is being painted
g - the paint graphics
x - the x position of the painted border
y - the y position of the painted border
width - the width of the painted border
height - the height of the painted border

getBorderInsets

public Insets getBorderInsets(Component c)
Returns the insets of the border.

Specified by:
getBorderInsets in interface Border
Overrides:
getBorderInsets in class AbstractBorder
Parameters:
c - the component for which this border insets value applies
Returns:
the new Insets object initialized to 0

getBorderInsets

public Insets getBorderInsets(Component c,
                              Insets insets)
Reinitialize the insets parameter with this Border's current Insets.

Overrides:
getBorderInsets in class AbstractBorder
Parameters:
c - the component for which this border insets value applies
insets - the object to be reinitialized
Returns:
the insets object

getBorderInsets

public Insets getBorderInsets()
Returns the insets of the border.


isBorderOpaque

public boolean isBorderOpaque()
Returns whether or not the border is opaque. Returns false by default.

Specified by:
isBorderOpaque in interface Border
Overrides:
isBorderOpaque in class AbstractBorder
Returns:
false