com.revolsys.swing.border

Class IconBorder

java.lang.Object

com.revolsys.swing.border.IconBorder

All Implemented Interfaces:

Serializable, Border

public class IconBorder
extends Object
implements Border, Serializable

IconBorder creates a border that places an Icon in the border on the horizontal axis. The border does not add any additional insets other than the inset required to produce the space for the icon. If additional insets are required, users should create a compund border.

This border is useful when attempting to add Icons to pre-existing components without requiring specialty painting.

Version:

1.1

Author:

Amy Fowler, Karl Schaefer

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Icon	EMPTY_ICON An empty icon.

Constructor Summary

Constructors

Constructor and Description
IconBorder() Creates an IconBorder with an empty icon in a trailing position with a padding of 4.
IconBorder(Icon validIcon) Creates an IconBorder with the specified icon in a trailing position with a padding of 1.
IconBorder(Icon validIcon, int iconPosition) Creates an IconBorder with the specified constraints and a padding of 1.
IconBorder(Icon validIcon, int iconPosition, int padding) Creates an IconBorder with the specified constraints.

Method Summary

Methods

Modifier and Type	Method and Description
Insets	getBorderInsets(Component c)
int	getIconPosition() Returns the position to place the icon (relative to the component contents).
int	getPadding() Gets the padding surrounding the icon.
boolean	isBorderOpaque() This border is not opaque.
void	paintBorder(Component c, Graphics g, int x, int y, int width, int height)
void	setIcon(Icon validIcon) Sets the icon for this border.
void	setIconPosition(int iconPosition) Sets the position to place the icon (relative to the component contents).
void	setPadding(int padding) Sets the padding around the icon.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EMPTY_ICON

public static final Icon EMPTY_ICON

An empty icon.

Constructor Detail

IconBorder

public IconBorder()

Creates an IconBorder with an empty icon in a trailing position with a padding of 4.

See Also:

EMPTY_ICON

IconBorder

public IconBorder(Icon validIcon)

Creates an IconBorder with the specified icon in a trailing position with a padding of 1.

Parameters:

validIcon - the icon to set. This may be null to represent an empty icon.

See Also:

EMPTY_ICON

IconBorder

public IconBorder(Icon validIcon,
          int iconPosition)

Creates an IconBorder with the specified constraints and a padding of 1.

Parameters:

validIcon - the icon to set. This may be null to represent an empty icon.

iconPosition - the position to place the icon relative to the component contents. This must be one of the following SwingConstants:

• LEADING
• TRAILING
• EAST
• WEST

Throws:

IllegalArgumentException - if iconPosition is not a valid position.

See Also:

EMPTY_ICON

IconBorder

public IconBorder(Icon validIcon,
          int iconPosition,
          int padding)

Creates an IconBorder with the specified constraints. If validIcon is null, EMPTY_ICON is used instead. If padding is negative, then the border does not use padding.

Parameters:

validIcon - the icon to set. This may be null to represent an empty icon.

iconPosition - the position to place the icon relative to the component contents. This must be one of the following SwingConstants:

• LEADING
• TRAILING
• EAST
• WEST

padding - the padding to surround the icon with. All non-positive values set the padding to 0.

Throws:

IllegalArgumentException - if iconPosition is not a valid position.

See Also:

EMPTY_ICON

Method Detail

getBorderInsets

public Insets getBorderInsets(Component c)

Specified by:

getBorderInsets in interface Border

getIconPosition

public int getIconPosition()

Returns the position to place the icon (relative to the component contents).

Returns:

one of the following SwingConstants:

• LEADING
• TRAILING
• EAST
• WEST

getPadding

public int getPadding()

Gets the padding surrounding the icon.

Returns:

the padding for the icon. This value is guaranteed to be nonnegative.

isBorderOpaque

public boolean isBorderOpaque()

This border is not opaque.

Specified by:

isBorderOpaque in interface Border

Returns:

always returns false

paintBorder

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

Specified by:

paintBorder in interface Border

setIcon

public void setIcon(Icon validIcon)

Sets the icon for this border.

Parameters:

validIcon - the icon to set. This may be null to represent an empty icon.

See Also:

EMPTY_ICON

setIconPosition

public void setIconPosition(int iconPosition)

Sets the position to place the icon (relative to the component contents).

Parameters:

iconPosition - must be one of the following SwingConstants:

• LEADING
• TRAILING
• EAST
• WEST

Throws:

IllegalArgumentException - if iconPosition is not a valid position.

setPadding

public void setPadding(int padding)

Sets the padding around the icon.

Parameters:

padding - the padding to set. If padding < 0, then padding will be set to 0.