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## javax.swing.border
Class AbstractBorder

    java.lang.Object
      |
      +--javax.swing.border.AbstractBorder

All Implemented Interfaces:
  Border, Serializable

Direct Known Subclasses:
  BasicBorders.ButtonBorder, BasicBorders.FieldBorder, BasicBorders.MarginBorder, BasicBorders.MenuBarBorder, BevelBorder, CompoundBorder, EmptyBorder, EtchedBorder, LineBorder, MetalBorders.ButtonBorder, MetalBorders.Flush3DBorder, MetalBorders.InternalFrameBorder, MetalBorders.MenuBarBorder, MetalBorders.MenuItemBorder, MetalBorders.OptionDialogBorder, MetalBorders.PaletteBorder, MetalBorders.PopupMenuBorder, MetalBorders.ScrollPaneBorder, MetalBorders.TableHeaderBorder, MetalBorders.ToolBarBorder, TitledBorder

public abstract class AbstractBorder
extends Object
implements Border, Serializable

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 `XMLEncoder`.

Constructor Summary
`AbstractBorder()`

Method Summary
`Insets` | `getBorderInsets(Component c)` This default implementation returns a new `Insets` instance where the `top`, `left`, `bottom`, and `right` fields are set to `0`.
`Insets` | `getBorderInsets(Component c, Insets insets)` Reinitializes the insets parameter with this Border's current Insets.
`static Rectangle` | `getInteriorRectangle(Component c, Border b, int x, int y, int width, int height)` Returns a rectangle using the arguments minus the insets of the border.
`Rectangle` | `getInteriorRectangle(Component c, int x, int y, int width, int height)` This convenience method calls the static method.
`boolean` | `isBorderOpaque()` This default implementation returns false.
`void` | `paintBorder(Component c, Graphics g, int x, int y, int width, int height)` This default implementation does no painting.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### AbstractBorder

    public AbstractBorder()

Method Detail

### paintBorder

    public void paintBorder(Component c,
                            Graphics g,
                            int x,
                            int y,
                            int width,
                            int height)

  This default implementation does no painting.

  Specified by:
    `paintBorder` in interface `Border`
  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)

  This default implementation returns a new `Insets` instance where the `top`, `left`, `bottom`, and `right` fields are set to `0`.

  Specified by:
    `getBorderInsets` in interface `Border`
  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)

  Reinitializes the insets parameter with this Border's current Insets.

  Parameters:
    `c` - the component for which this border insets value applies
    `insets` - the object to be reinitialized
  Returns:
    the `insets` object

### isBorderOpaque

    public boolean isBorderOpaque()

  This default implementation returns false.

  Specified by:
    `isBorderOpaque` in interface `Border`
  Returns:
    false

### getInteriorRectangle

    public Rectangle getInteriorRectangle(Component c,
                                          int x,
                                          int y,
                                          int width,
                                          int height)

  This convenience method calls the static method.

  Parameters:
    `c` - the component for which this border is being computed
    `x` - the x position of the border
    `y` - the y position of the border
    `width` - the width of the border
    `height` - the height of the border
  Returns:
    a `Rectangle` containing the interior coordinates

### getInteriorRectangle

    public static Rectangle getInteriorRectangle(Component c,
                                                 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.

  Parameters:
    `c` - the component for which this border is being computed
    `b` - the `Border` object
    `x` - the x position of the border
    `y` - the y position of the border
    `width` - the width of the border
    `height` - the height of the border
  Returns:
    a `Rectangle` containing the interior coordinates

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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.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.