Class java.awt.GridBagConstraints - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class java.awt.GridBagConstraints

java.lang.Object
   |
   +----java.awt.GridBagConstraints

public class GridBagConstraints
extends Object
implements Cloneable, Serializable

The GridBagConstraints class specifies constraints for components that are laid out using the GridBagLayout class.

See Also:: GridBagLayout

anchor: This field is used when the component is smaller than its display area.
BOTH: Resize the component both horizontally and vertically.
CENTER: Put the component in the center of its display area.
EAST: Put the component on the right side of its display area, centered vertically.
fill: This field is used when the component's display area is larger than the component's requested size.
gridheight: Specifies the number of cells in a column for the component's display area.
gridwidth: Specifies the number of cells in a row for the component's display area.
gridx: Specifies the cell at the left of the component's display area, where the leftmost cell has gridx = 0.
gridy: Specifies the cell at the top of the component's display area, where the topmost cell has gridy = 0.
HORIZONTAL: Resize the component horizontally but not vertically.
insets: This field specifies the external padding of the component, the minimum amount of space between the component and the edges of its display area.
ipadx: This field specifies the internal padding of the component, how much space to add to the minimum width of the component.
ipady: This field specifies the internal padding, that is, how much space to add to the minimum height of the component.
NONE: Do not resize the component.
NORTH: Put the component at the top of its display area, centered horizontally.
NORTHEAST: Put the component at the top-right corner of its display area.
NORTHWEST: Put the component at the top-left corner of its display area.
RELATIVE: Specify that this component is the next-to-last component in its column or row (gridwidth, gridheight), or that this component be placed next to the previously added component (gridx, gridy).
REMAINDER: Specify that this component is the last component in its column or row.
SOUTH: Put the component at the bottom of its display area, centered horizontally.
SOUTHEAST: Put the component at the bottom-right corner of its display area.
SOUTHWEST: Put the component at the bottom-left corner of its display area.
VERTICAL: Resize the component vertically but not horizontally.
weightx: Specifies how to distribute extra horizontal space.
weighty: Specifies how to distribute extra vertical space.
WEST: Put the component on the left side of its display area, centered vertically.

GridBagConstraints(): Creates a GridBagConstraint object with all of its fields set to their default value.

clone(): Creates a copy of this grid bag constraint.

RELATIVE

 public static final int RELATIVE

Specify that this component is the next-to-last component in its column or row (gridwidth, gridheight), or that this component be placed next to the previously added component (gridx, gridy).

See Also:: gridwidth, gridheight, gridx, gridy

REMAINDER

 public static final int REMAINDER

Specify that this component is the last component in its column or row.

NONE

 public static final int NONE

Do not resize the component.

BOTH

 public static final int BOTH

Resize the component both horizontally and vertically.

HORIZONTAL

 public static final int HORIZONTAL

Resize the component horizontally but not vertically.

VERTICAL

 public static final int VERTICAL

Resize the component vertically but not horizontally.

CENTER

 public static final int CENTER

Put the component in the center of its display area.

NORTH

 public static final int NORTH

Put the component at the top of its display area, centered horizontally.

NORTHEAST

 public static final int NORTHEAST

Put the component at the top-right corner of its display area.

EAST

 public static final int EAST

Put the component on the right side of its display area, centered vertically.

SOUTHEAST

 public static final int SOUTHEAST

Put the component at the bottom-right corner of its display area.

SOUTH

 public static final int SOUTH

Put the component at the bottom of its display area, centered horizontally.

SOUTHWEST

 public static final int SOUTHWEST

Put the component at the bottom-left corner of its display area.

WEST

 public static final int WEST

Put the component on the left side of its display area, centered vertically.

NORTHWEST

 public static final int NORTHWEST

Put the component at the top-left corner of its display area.

gridx

 public int gridx

Specifies the cell at the left of the component's display area, where the leftmost cell has gridx = 0. The value RELATIVE specifies that the component be placed just to the right of the component that was added to the container just before this component was added.

The default value is RELATIVE.

See Also:: gridy

gridy

 public int gridy

Specifies the cell at the top of the component's display area, where the topmost cell has gridy = 0. The value RELATIVE specifies that the component be placed just below the component that was added to the container just before this component was added.

The default value is RELATIVE.

See Also:: gridx

gridwidth

 public int gridwidth

Specifies the number of cells in a row for the component's display area.

Use REMAINDER to specify that the component be the last one in its row. Use RELATIVE to specify that the component be the next-to-last one in its row.

The default value is 1.

See Also:: gridheight

gridheight

 public int gridheight

Specifies the number of cells in a column for the component's display area.

Use REMAINDER to specify that the component be the last one in its column. Use RELATIVE to specify that the component be the next-to-last one in its column.

The default value is 1.

See Also:: gridwidth

weightx

 public double weightx

Specifies how to distribute extra horizontal space.

The grid bag layout manager calculates the weight of a column to be the maximum weighty of all the components in a row. If the resulting layout is smaller horizontally than the area it needs to fill, the extra space is distributed to each column in proportion to its weight. A column that has a weight zero receives no extra space.

If all the weights are zero, all the extra space appears between the grids of the cell and the left and right edges.

The default value of this field is 0.

See Also:: weighty

weighty

 public double weighty

Specifies how to distribute extra vertical space.

The grid bag layout manager calculates the weight of a row to be the maximum weightx of all the components in a row. If the resulting layout is smaller vertically than the area it needs to fill, the extra space is distributed to each row in proportion to its weight. A row that has a weight of zero receives no extra space.

If all the weights are zero, all the extra space appears between the grids of the cell and the top and bottom edges.

The default value of this field is 0.

See Also:: weightx

anchor

 public int anchor

This field is used when the component is smaller than its display area. It determines where, within the display area, to place the component. Possible values are

CENTER, 
 NORTH, NORTHEAST, EAST, 
 SOUTHEAST, SOUTH, SOUTHWEST, 
 WEST, and NORTHWEST.
 The default value is CENTER.



fill
 public int fill


   This field is used when the component's display area is larger 
 than the component's requested size. It determines whether to 
 resize the component, and if so, how. 
 
 The following values are valid for fill: 
 

 

 
 NONE: Do not resize the component. 
 

 HORIZONTAL: Make the component wide enough to fill 
         its display area horizontally, but do not change its height. 
 

 VERTICAL: Make the component tall enough to fill its 
         display area vertically, but do not change its width. 
 

 BOTH: Make the component fill its display area 
         entirely. 
 
 
 The default value is NONE.



insets
 public Insets insets


   This field specifies the external padding of the component, the 
 minimum amount of space between the component and the edges of its 
 display area. 
 
 The default value is new Insets(0, 0, 0, 0).



ipadx
 public int ipadx


   This field specifies the internal padding of the component, how much 
 space to add to the minimum width of the component. The width of 
 the component is at least its minimum width plus 
 (ipadx * 2) pixels. 
 
 The default value is 0.

  
 
     See Also:
    
 ipady
  


ipady
 public int ipady


   This field specifies the internal padding, that is, how much 
 space to add to the minimum height of the component. The height of 
 the component is at least its minimum height plus 
 (ipady * 2) pixels. 
 
 The default value is 0.

  
 
     See Also:
    
 ipadx
  



  



GridBagConstraints
 public GridBagConstraints()


   Creates a GridBagConstraint object with 
 all of its fields set to their default value.




  


clone
 public Object clone()


   Creates a copy of this grid bag constraint.

  

     Returns:
    
 a copy of this grid bag constraint
    
 Overrides:
    
 clone in class Object
  


All Packages  Class Hierarchy  This Package  Previous  Next  Index

Submit a bug or feature - Version 1.1.8 of Java Platform API Specification

Java is a trademark or registered trademark of Sun Microsystems,  Inc. in the US and other countries.

Copyright 1995-1999 Sun Microsystems, Inc. 901 San Antonio Road,

Palo Alto, California, 94303, U.S.A.  All Rights Reserved.


 
 

 

首页 | 
全站 Sitemap | 
联系我们 | 
设为首页 | 
收藏本站 

版权所有 Copyright © 2006-2007, Java 编程资料牛鼻站, All rights reserved