Label.java example

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osgi-maven-master
/*
 * Ext GWT 2.2.4 - Ext for GWT
 * Copyright(c) 2007-2010, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://extjs.com/license
 */
package com.extjs.gxt.ui.client.widget;

import com.google.gwt.user.client.Element;

/**
 * A component that contains text in a HTML label element. The text value is not
 * treated as HTML.
 * 
 * <dl>
 * <dt>Inherited Events:</dt>
 * <dd>BoxComponent Move</dd>
 * <dd>BoxComponent Resize</dd>
 * <dd>Component Enable</dd>
 * <dd>Component Disable</dd>
 * <dd>Component BeforeHide</dd>
 * <dd>Component Hide</dd>
 * <dd>Component BeforeShow</dd>
 * <dd>Component Show</dd>
 * <dd>Component Attach</dd>
 * <dd>Component Detach</dd>
 * <dd>Component BeforeRender</dd>
 * <dd>Component Render</dd>
 * <dd>Component BrowserEvent</dd>
 * <dd>Component BeforeStateRestore</dd>
 * <dd>Component StateRestore</dd>
 * <dd>Component BeforeStateSave</dd>
 * <dd>Component SaveState</dd>
 * </dl>
 */
public class Label extends Text {

  private String labelFor;

  /**
   * Creates a new label.
   */
  public Label() {
    setTagName("label");
  }

  /**
   * Creates a new label.
   * 
   * @param text the label's text
   */
  public Label(String text) {
    this();
    setText(text);
  }

  /**
   * Sets the label for id.
   * 
   * @param id the element id
   */
  public void setLabelFor(String id) {
    this.labelFor = id;
  }

  @Override
  protected void onRender(Element target, int index) {
    super.onRender(target, index);

    if (labelFor != null) {
      getElement().setAttribute("for", labelFor);
    }
  }
}