/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package javax.microedition.lcdui;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

/**

 * Class responsible for correct layout of Spacer item.

 */

class SpacerLayouter extends ItemLayouter

{

    /**

     * Constructor.

     *

     * @param aFormLayouter FormLayouter used for layouting.

     */

    SpacerLayouter(FormLayouter aFormLayouter)

    {

        super(aFormLayouter);

    }

    /**

     * Creates eSWT Control for the given Item.

     *

     * @param item Item to create the Control

     * @param parent parent to create the Control

     * @return eSWT Control

     */

	Control createItemControl(Composite parent, Item item)

	{

		return eswtGetControl(parent, item);

	}

    /**

     * eSWT specific calls to implement getControl.

     *

     * @param parent for the control.

     * @param item Spacer item.

     */

    Control eswtGetControl(Composite parent, Item item)

    {

        Composite composite = new Composite(parent, SWT.NONE);

        composite.setSize(item.getMinimumWidth(), item.getMinimumHeight());

        return composite;

    }

    /**

     * Returns true if this eSWT control is suitable to be used for updating.

     *

     * @param item Item.

     * @param control eSWT control.

     * @return true if this control is suitable for update

     */

    boolean eswtIsSpecificControl(Item item, Control control)

    {

	    return (control instanceof Composite);

    }

    /**

     * Updates the values of Spacer. (Not used because of Spacer specific use)

     *

     * @param item Item.

     * @param control eSWT control.

     * @param reason reason to update.

     */

    void eswtUpdateItem(Item item, Control control, int aReason, Object param)

    {

		/*if(control instanceof  Composite)

		{

			control.setSize(item.getMinimumWidth(), item.getMinimumHeight());

		}*/

   		if(!(control instanceof  Composite))

		{

			return;

		}

    	Spacer spacer = (Spacer)item;

		int reason = aReason & Item.UPDATE_SIZE_MASK;

		switch(reason)

		{

		case Item.UPDATE_NONE:

			break;

		case Spacer.UPDATE_MINIMUMSIZE:

		{

			Control sCtrl = eswtFindSpecificControl(spacer, control);

			sCtrl.setSize(item.getMinimumWidth(), item.getMinimumHeight());

			break;

		}

		default:

		{

			break;

		}

		}

    }

}