org.apache.commons.jelly.tags.swing
Class LayoutTagSupport

java.lang.Object
  org.apache.commons.jelly.TagSupport
      org.apache.commons.jelly.tags.swing.LayoutTagSupport

All Implemented Interfaces:

org.apache.commons.jelly.Tag

Direct Known Subclasses:

BorderLayoutTag, CardLayoutTag, GridBagLayoutTag, TableLayoutTag

public abstract class LayoutTagSupport

extends org.apache.commons.jelly.TagSupport

An abstract base class used for concrete layout tags which create new LayoutManager implementations and either export them as variables or set them on parent widgets.

Version:

$Revision: 155420 $

Author:

James Strachan

Field Summary

Fields inherited from class org.apache.commons.jelly.TagSupport

body, context, hasTrimmed, parent, shouldTrim

Constructor Summary

LayoutTagSupport()

Method Summary

void	addLayoutComponent(java.awt.Component component, java.lang.Object constraints) Adds the given layout component to the container with the specified constraints
protected abstract java.awt.LayoutManager	createLayoutManager() Factory method to create a new LayoutManager instance.
void	doTag(org.apache.commons.jelly.XMLOutput output)
protected ComponentTag	getComponentTag()
void	setVar(java.lang.String var) Sets the name of the variable to use to expose the new LayoutManager object.

Methods inherited from class org.apache.commons.jelly.TagSupport

findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, getBody, getBodyText, getBodyText, getContext, getParent, invokeBody, isEscapeText, isTrim, setBody, setContext, setEscapeText, setParent, setTrim, trimBody

Methods inherited from class java.lang.Object

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

Constructor Detail

LayoutTagSupport

public LayoutTagSupport()

Method Detail

addLayoutComponent

public void addLayoutComponent(java.awt.Component component,
                               java.lang.Object constraints)
                        throws org.apache.commons.jelly.JellyTagException

Adds the given layout component to the container with the specified constraints

Throws:

org.apache.commons.jelly.JellyTagException

doTag

public void doTag(org.apache.commons.jelly.XMLOutput output)
           throws org.apache.commons.jelly.JellyTagException

Throws:

org.apache.commons.jelly.JellyTagException

setVar

public void setVar(java.lang.String var)

Sets the name of the variable to use to expose the new LayoutManager object. If this attribute is not set then the parent widget tag will have its layout property set.

getComponentTag

protected ComponentTag getComponentTag()
                                throws org.apache.commons.jelly.JellyTagException

Returns:

the parent component tag or throw an exception

Throws:

org.apache.commons.jelly.JellyTagException

createLayoutManager

protected abstract java.awt.LayoutManager createLayoutManager()

Factory method to create a new LayoutManager instance.