org.esa.snap.ui

Class GridBagUtils

java.lang.Object

org.esa.snap.ui.GridBagUtils

public class GridBagUtils
extends Object

A utility class providing helper methods for JPanels with a GridBagLayout layout manager.

Version:

$Revision$ $Date$

Constructor Summary

Constructors

Constructor and Description
GridBagUtils()

Method Summary

Modifier and Type	Method and Description
static void	addHorizontalFiller(JPanel panel, GridBagConstraints gbc)
static void	addToPanel(JPanel panel, Component comp, GridBagConstraints gbc) Adds a component to a panel with a grid bag layout.
static void	addToPanel(JPanel panel, Component comp, GridBagConstraints gbc, String code) Adds a component to a panel with a grid bag layout.
static void	addVerticalFiller(JPanel panel, GridBagConstraints gbc)
static GridBagConstraints	createConstraints(String code) Creates a GridBagConstraints instance with the attributes given as a comma separated key-value pairs in a text string.
static GridBagConstraints	createDefaultConstraints() Creates a GridBagConstraints instance with the following attributes: anchor=WEST insets.top=0 insets.left=3 insets.bottom=0 insets.right=3
static JPanel	createDefaultEmptyBorderPanel()
static JPanel	createPanel()
static GridBagConstraints	setAttributes(GridBagConstraints gbc, String code) Sets the attributes of a given GridBagConstraints instance to the attribute values given as a comma separated key-value pairs in a text string.

Methods inherited from class java.lang.Object

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

Constructor Detail

GridBagUtils

public GridBagUtils()

Method Detail

createPanel

public static JPanel createPanel()

createDefaultEmptyBorderPanel

public static JPanel createDefaultEmptyBorderPanel()

createConstraints

public static GridBagConstraints createConstraints(String code)

Creates a GridBagConstraints instance with the attributes given as a comma separated key-value pairs in a text string.

According to the public GridBagConstraints attributes, the following key-value pairs are can occur in the text string:

• gridx=RELATIVE|integer
• gridy=RELATIVE|integer
• gridwidth=REMAINDER|RELATIVE|integer
• gridheight=REMAINDER|RELATIVE|integer
• weightx=double
• weighty=double
• anchor=CENTER|NORTH|NORTHEAST|EAST|SOUTHEAST|SOUTH|SOUTHWEST|WEST|NORTHWEST|integer
• fill=NONE|HORIZONTAL|VERTICAL|BOTH|integer
• insets.bottom=integer
• insets.left=integer
• insets.right=integer
• insets.top=integer
• ipadx=integer
• ipady=integer

Parameters:

code - a textual representation of the attributes to be set

createDefaultConstraints

public static GridBagConstraints createDefaultConstraints()

Creates a GridBagConstraints instance with the following attributes:

• anchor=WEST
• insets.top=0
• insets.left=3
• insets.bottom=0
• insets.right=3

addToPanel

public static void addToPanel(JPanel panel,
                              Component comp,
                              GridBagConstraints gbc)

Adds a component to a panel with a grid bag layout.

Parameters:

panel - the panel to which to add the component

comp - the component to be added

gbc - the grid bag constraints to be used, can be null if code is not null

addToPanel

public static void addToPanel(JPanel panel,
                              Component comp,
                              GridBagConstraints gbc,
                              String code)

Adds a component to a panel with a grid bag layout.

For the code parameter, see also setAttributes(GridBagConstraints, String).

Parameters:

panel - the panel to which to add the component

comp - the component to be added

gbc - the grid bag constraints to be used, can be null if code is not null

code - the code containing the constraints, can be null if gbc is not null

See Also:

setAttributes(GridBagConstraints, String)

addHorizontalFiller

public static void addHorizontalFiller(JPanel panel,
                                       GridBagConstraints gbc)

addVerticalFiller

public static void addVerticalFiller(JPanel panel,
                                     GridBagConstraints gbc)

setAttributes

public static GridBagConstraints setAttributes(GridBagConstraints gbc,
                                               String code)

Sets the attributes of a given GridBagConstraints instance to the attribute values given as a comma separated key-value pairs in a text string.

According to the public GridBagConstraints attributes, the following key-value pairs are can occur in the text string:

• gridx=RELATIVE|integer
• gridy=RELATIVE|integer
• gridwidth=REMAINDER|RELATIVE|integer
• gridheight=REMAINDER|RELATIVE|integer
• weightx=double
• weighty=double
• anchor=CENTER|NORTH|NORTHEAST|EAST|SOUTHEAST|SOUTH|SOUTHWEST|WEST|NORTHWEST|integer
• fill=NONE|HORIZONTAL|VERTICAL|BOTH|integer
• insets.bottom=integer
• insets.left=integer
• insets.right=integer
• insets.top=integer
• ipadx=integer
• ipady=integer

Parameters:

gbc - the grid bag constraints whose attributes are to be set, must not be null

code - a textual representation of the attributes to be set