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Java 2 Platform SE v1.3.1: Class CompoundBorder
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JavaTM 2 Platform
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javax.swing.border
Class CompoundBorder

java.lang.Object
  |
  +--javax.swing.border.AbstractBorder
        |
        +--javax.swing.border.CompoundBorder
All Implemented Interfaces:
Border, Serializable
Direct Known Subclasses:
BorderUIResource.CompoundBorderUIResource
public class CompoundBorder
extends AbstractBorder

A composite Border class used to compose two Border objects into a single border by nesting an inside Border object within the insets of an outside Border object. For example, this class may be used to add blank margin space to a component with an existing decorative border: 

    Border border = comp.getBorder();
    Border margin = new EmptyBorder(10,10,10,10);
    comp.setBorder(new CompoundBorder(border, margin));

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. A future release of Swing will provide support for long term persistence.

See Also:
Serialized Form

Field Summary
protected  Border insideBorder
           
protected  Border outsideBorder
           
 
Constructor Summary
CompoundBorder()
          Creates a compound border with null outside and inside borders.
CompoundBorder(Border outsideBorder, Border insideBorder)
          Creates a compound border with the specified outside and inside borders.
 
Method Summary
 Insets getBorderInsets(Component c)
          Returns the insets of the composite border by adding the insets of the outside border to the insets of the inside border.
 Insets getBorderInsets(Component c, Insets insets)
          Reinitialize the insets parameter with this Border's current Insets.
 Border getInsideBorder()
          Returns the inside border object.
 Border getOutsideBorder()
          Returns the outside border object.
 boolean isBorderOpaque()
          Returns whether or not this compound border is opaque.
 void paintBorder(Component c, Graphics g, int x, int y, int width, int height)
          Paints the compound border by painting the outside border with the specified position and size and then painting the inside border at the specified position and size offset by the insets of the outside border.
 
Methods inherited from class javax.swing.border.AbstractBorder
getInteriorRectangle, getInteriorRectangle
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

outsideBorder

protected Border outsideBorder

insideBorder

protected Border insideBorder
Constructor Detail

CompoundBorder

public CompoundBorder()
Creates a compound border with null outside and inside borders.

CompoundBorder

public CompoundBorder(Border outsideBorder,
                      Border insideBorder)
Creates a compound border with the specified outside and inside borders. Either border may be null.
Parameters:
outsideBorder - the outside border
insideBorder - the inside border to be nested
Method Detail

isBorderOpaque

public boolean isBorderOpaque()
Returns whether or not this compound border is opaque. Returns true if both the inside and outside borders are non-null and opaque; returns false otherwise.
Overrides:
isBorderOpaque in class AbstractBorder

paintBorder

public void paintBorder(Component c,
                        Graphics g,
                        int x,
                        int y,
                        int width,
                        int height)
Paints the compound border by painting the outside border with the specified position and size and then painting the inside border at the specified position and size offset by the insets of the outside 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,
                              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

getBorderInsets

public Insets getBorderInsets(Component c)
Returns the insets of the composite border by adding the insets of the outside border to the insets of the inside border.
Overrides:
getBorderInsets in class AbstractBorder
Parameters:
c - the component for which this border insets value applies

getOutsideBorder

public Border getOutsideBorder()
Returns the outside border object.

getInsideBorder

public Border getInsideBorder()
Returns the inside border object.
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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