missing setHideTrigger in DateField (because DateField not extends TriggerField)

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What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?
missing setHideTrigger in DateField

What version of the product are you using? On what operating system?
2.0.5

Please provide any additional information below.

in original extjs: 
DateField extends TriggerField (and TiggerField extends TextField)

in gwt-ext:
DateField extends TextField
-> so there are some of the triggerfield functions are missing

Solution: 
make also in gwt-ext that the DateField extends TriggerField

Workaround:

/*
 *
 */
package com.company.programm.client.gui.components;

import com.google.gwt.core.client.JavaScriptObject;
import com.gwtext.client.widgets.form.DateField;

/**
 *
 * @author 
 */
public class ExtendedDateField extends DateField {

    /**
     * Construct a new ExtendedDateField.
     */
    public ExtendedDateField() {
        super();
    }

    /**
     * Construct a new ExtendedDateField.
     *
     * @param fieldLabel the field label
     * @param name the field name
     * @param width the field width
     */
    public ExtendedDateField(String fieldLabel, String name, int width) {
        super(fieldLabel, name, width);
    }

    /**
     * Construct a new ExtendedDateField.
     *
     * @param label the field label value
     * @param format the date format value
     */
    public ExtendedDateField(String label, String format) {
        setFieldLabel(label);
        setFormat(format);
    }

    public ExtendedDateField(JavaScriptObject jsObj) {
        super(jsObj);
    }

    /**
     * True to hide the trigger element and display only the base text 
field (defaults to false).
     *
     * @param hideTrigger true to hide trigger
     * @throws IllegalStateException this property cannot be changed after 
the Component has been rendered
     */
    public void setHideTrigger(boolean hideTrigger) throws 
IllegalStateException {
        setAttribute("hideTrigger", hideTrigger, true);
    }
}

Original issue reported on code.google.com by nietz...@gmail.com on 12 Mar 2009 at 10:38