Serializable
, Border
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
, StrokeBorder
, TitledBorder
public abstract class AbstractBorder extends Object implements Border, Serializable
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 JavaBeans has been added to the java.beans
package. Please see XMLEncoder
.
Modifier | Constructor | Description |
---|---|---|
protected |
Constructor for subclasses to call. |
Modifier and Type | Method | Description |
---|---|---|
int |
getBaseline |
Returns the baseline. |
Component.BaselineResizeBehavior |
getBaselineResizeBehavior |
Returns an enum indicating how the baseline of a component changes as the size changes. |
Insets |
getBorderInsets |
This default implementation returns a new Insets object that is initialized by the getBorderInsets(Component,Insets) method. |
Insets |
getBorderInsets |
Reinitializes the insets parameter with this Border's current Insets. |
Rectangle |
getInteriorRectangle |
This convenience method calls the static method. |
static Rectangle |
getInteriorRectangle |
Returns a rectangle using the arguments minus the insets of the border. |
boolean |
isBorderOpaque() |
This default implementation returns false. |
void |
paintBorder |
This default implementation does no painting. |
protected AbstractBorder()
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height)
paintBorder
in interface Border
c
- the component for which this border is being paintedg
- the paint graphicsx
- the x position of the painted bordery
- the y position of the painted borderwidth
- the width of the painted borderheight
- the height of the painted borderpublic Insets getBorderInsets(Component c)
Insets
object that is initialized by the getBorderInsets(Component,Insets)
method. By default the top
, left
, bottom
, and right
fields are set to 0
.getBorderInsets
in interface Border
c
- the component for which this border insets value appliesInsets
objectpublic Insets getBorderInsets(Component c, Insets insets)
c
- the component for which this border insets value appliesinsets
- the object to be reinitializedinsets
objectNullPointerException
- if the specified insets
is null
public boolean isBorderOpaque()
isBorderOpaque
in interface Border
public Rectangle getInteriorRectangle(Component c, int x, int y, int width, int height)
c
- the component for which this border is being computedx
- the x position of the bordery
- the y position of the borderwidth
- the width of the borderheight
- the height of the borderRectangle
containing the interior coordinatespublic static Rectangle getInteriorRectangle(Component c, Border b, int x, int y, int width, int height)
c
- the component for which this border is being computedb
- the Border
objectx
- the x position of the bordery
- the y position of the borderwidth
- the width of the borderheight
- the height of the borderRectangle
containing the interior coordinatespublic int getBaseline(Component c, int width, int height)
The default implementation returns -1. Subclasses that support baseline should override appropriately. If a value >= 0 is returned, then the component has a valid baseline for any size >= the minimum size and getBaselineResizeBehavior
can be used to determine how the baseline changes with size.
c
- Component
baseline is being requested forwidth
- the width to get the baseline forheight
- the height to get the baseline forIllegalArgumentException
- if width or height is < 0public Component.BaselineResizeBehavior getBaselineResizeBehavior(Component c)
The default implementation returns BaselineResizeBehavior.OTHER
, subclasses that support baseline should override appropriately. Subclasses should never return null
; if the baseline can not be calculated return BaselineResizeBehavior.OTHER
. Callers should first ask for the baseline using getBaseline
and if a value >= 0 is returned use this method. It is acceptable for this method to return a value other than BaselineResizeBehavior.OTHER
even if getBaseline
returns a value less than 0.
c
- Component
to return baseline resize behavior forNullPointerException
- if Component
is null
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/border/AbstractBorder.html