Module proto4j.swing

Package org.proto4j.swing.core.desc.layout

Class SpringLayoutDesc

java.lang.Object

org.proto4j.swing.core.desc.GenericDesc<Layout>

org.proto4j.swing.core.desc.LayoutDesc

org.proto4j.swing.core.desc.layout.SpringLayoutDesc

public class SpringLayoutDesc
extends LayoutDesc

The basic descriptor for the SpringLayout.

See Also:

LayoutDesc

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SpringLayoutDesc.SpringLayoutConstraints

Field Summary

Fields inherited from class org.proto4j.swing.core.desc.GenericDesc

INVALID_INT, UNDEFINED

Constructor Summary

Constructors

Constructor	Description
SpringLayoutDesc(ComponentDesc parent)	Creates a new LayoutDesc.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	createConstraints(ComponentDesc child)	Creates layout constraints if possible by using extra configuration variables by the parent ComponentDesc.
java.awt.LayoutManager	createManager()	Based on the configuration given by the annotations on each field, this descriptor tries to create the corresponding LayoutManager.
boolean	isAbsolute()	Indicates that the implemented LayoutDesc will represent the absolute layout.

Methods inherited from class org.proto4j.swing.core.desc.LayoutDesc

applyTo, bind, getParent, setConstraint

Methods inherited from class org.proto4j.swing.core.desc.GenericDesc

annotationType, get, getDefinedOptions, getOption, hasOption, keys, put, read, read

Methods inherited from class java.lang.Object

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

Constructor Details

SpringLayoutDesc

public SpringLayoutDesc(ComponentDesc parent)

Creates a new LayoutDesc. This constructor is protected so only inheritors can call it.

Parameters:

parent - the parent component

Method Details

createManager

public java.awt.LayoutManager createManager()

Description copied from class: LayoutDesc

Based on the configuration given by the annotations on each field, this descriptor tries to create the corresponding LayoutManager.

Implementations of this method should return null of failure instead of throwing an exception.

Specified by:

createManager in class LayoutDesc

Returns:

the qualified LayoutManager

isAbsolute

public boolean isAbsolute()

Description copied from class: LayoutDesc

Indicates that the implemented LayoutDesc will represent the absolute layout.

Specified by:

isAbsolute in class LayoutDesc

Returns:

true if the absolute layout should be used; false otherwise

createConstraints

public java.lang.Object createConstraints(ComponentDesc child)

Description copied from class: LayoutDesc

Creates layout constraints if possible by using extra configuration variables by the parent ComponentDesc.

This method may return null if no constraints are defined or can be used. Another way is to throw an exception in order to show the user a misconfiguration.

Specified by:

createConstraints in class LayoutDesc

Returns:

the layout constraints for the given child component