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AbstractBorder.javaAPI DocJava SE 5 API4520Fri Aug 26 14:58:00 BST 2005javax.swing.border

AbstractBorder

public abstract class AbstractBorder extends Object implements Serializable, Border
A class that implements an empty border with no size. This provides a convenient base class from which other border classes can be easily derived.

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 {@link java.beans.XMLEncoder}.

version
1.33 12/19/03
author
David Kloba

Fields Summary
Constructors Summary
Methods Summary
public java.awt.InsetsgetBorderInsets(java.awt.Component c)
This default implementation returns a new Insets instance where the top, left, bottom, and right fields are set to 0.

param
c the component for which this border insets value applies
return
the new Insets object initialized to 0

 
        return new Insets(0, 0, 0, 0);
    
public java.awt.InsetsgetBorderInsets(java.awt.Component c, java.awt.Insets insets)
Reinitializes the insets parameter with this Border's current Insets.

param
c the component for which this border insets value applies
param
insets the object to be reinitialized
return
the insets object

        insets.left = insets.top = insets.right = insets.bottom = 0;
        return insets;
    
public java.awt.RectanglegetInteriorRectangle(java.awt.Component c, int x, int y, int width, int height)
This convenience method calls the static method.

param
c the component for which this border is being computed
param
x the x position of the border
param
y the y position of the border
param
width the width of the border
param
height the height of the border
return
a Rectangle containing the interior coordinates

	return getInteriorRectangle(c, this, x, y, width, height);
    
public static java.awt.RectanglegetInteriorRectangle(java.awt.Component c, javax.swing.border.Border b, int x, int y, int width, int height)
Returns a rectangle using the arguments minus the insets of the border. This is useful for determining the area that components should draw in that will not intersect the border.

param
c the component for which this border is being computed
param
b the Border object
param
x the x position of the border
param
y the y position of the border
param
width the width of the border
param
height the height of the border
return
a Rectangle containing the interior coordinates

        Insets insets;
	if(b != null)
	    insets = b.getBorderInsets(c);
	else
	    insets = new Insets(0, 0, 0, 0);
        return new Rectangle(x + insets.left,
	                            y + insets.top,
	                            width - insets.right - insets.left,
	                            height - insets.top - insets.bottom);
    
public booleanisBorderOpaque()
This default implementation returns false.

return
false

 return false; 
static booleanisLeftToRight(java.awt.Component c)

        return c.getComponentOrientation().isLeftToRight();
    
public voidpaintBorder(java.awt.Component c, java.awt.Graphics g, int x, int y, int width, int height)
This default implementation does no painting.

param
c the component for which this border is being painted
param
g the paint graphics
param
x the x position of the painted border
param
y the y position of the painted border
param
width the width of the painted border
param
height the height of the painted border