SubtaskSheetImpl.java from BIRT at Krugle

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/***********************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/

package org.eclipse.birt.chart.ui.swt.format;

import org.eclipse.birt.chart.model.Chart;
import org.eclipse.birt.chart.ui.interfaces.ITaskPopupSheet;
import org.eclipse.birt.chart.ui.swt.ChartWizardContext;
import org.eclipse.birt.chart.ui.swt.SheetPlaceHolder;
import org.eclipse.birt.chart.ui.swt.interfaces.IUIServiceProvider;
import org.eclipse.birt.chart.ui.wizard.internal.ChartAdapter;
import org.eclipse.birt.frameworks.taskwizard.WizardBase;
import org.eclipse.birt.frameworks.taskwizard.interfaces.ISubtaskSheet;
import org.eclipse.birt.frameworks.taskwizard.interfaces.IWizardContext;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Widget;

/**
 * @author Actuate Corporation
 * 
 */
public class SubtaskSheetImpl
		implements
			ISubtaskSheet,
			DisposeListener
{

	private transient String sIdentifier = ""; //$NON-NLS-1$

	private transient String sNodePath = ""; //$NON-NLS-1$

	private transient int subtaskIndex = 0;

	private transient Composite cTmp = null;

	private transient ChartWizardContext context = null;

	private transient WizardBase wizard;

	protected transient Shell popupShell;

	protected transient ITaskPopupSheet popupSheet;

	protected transient IUIServiceProvider serviceprovider;

	private static boolean POPUP_ATTACHING = false;

	public SubtaskSheetImpl( )
	{
		super( );
	}

	/**
	 * 
	 */
	public SubtaskSheetImpl( String sNodePath, String sIdentifier )
	{
		if ( sNodePath != null )
		{
			this.sNodePath = sNodePath;
		}
		this.sIdentifier = sIdentifier;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.ui.swt.interfaces.ISheet#getComponent(org.eclipse.swt.widgets.Composite)
	 */
	public void getComponent( Composite parent )
	{
		cTmp = new SheetPlaceHolder( parent, SWT.NONE, sIdentifier );
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.ui.swt.interfaces.ISheetListener#after(org.eclipse.birt.chart.model.Chart)
	 */
	public Object onHide( )
	{
		if ( cTmp != null && !cTmp.isDisposed( ) )
		{
			cTmp.dispose( );
		}
		return context;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.ui.swt.interfaces.ISheet#setIgnoreNotifications(boolean)
	 */
	public void setIgnoreNotifications( boolean bIgnoreNotifications )
	{
		ChartAdapter.ignoreNotifications( bIgnoreNotifications );
	}

	public void onShow( Object context, Object container )
	{
		this.context = (ChartWizardContext) context;
		this.wizard = (WizardBase) container;
		this.serviceprovider = this.context.getUIServiceProvider( );
	}

	protected Chart getChart( )
	{
		return context.getModel( );
	}

	protected IWizardContext getContext( )
	{
		return context;
	}

	protected WizardBase getWizard( )
	{
		return wizard;
	}

	protected void setWizard( WizardBase wizard )
	{
		this.wizard = wizard;
	}

	/**
	 * Detaches the popup dialogue if the name is same with the widget
	 * 
	 * @param widget
	 *            the button widget
	 * @return detach result
	 */
	protected boolean detachPopup( Widget widget )
	{
		if ( widget instanceof Button
				&& popupShell != null
				&& !popupShell.isDisposed( )
				&& popupShell.getText( )
						.equals( ( (Button) widget ).getText( ) ) )
		{
			getWizard( ).detachPopup( popupShell );
			popupShell = null;
			return true;
		}
		return false;
	}

	/**
	 * Forces the popup dialogue detached.
	 * 
	 * @return detach result
	 */
	protected boolean detachPopup( )
	{
		if ( popupShell != null && !popupShell.isDisposed( ) )
		{
			getWizard( ).detachPopup( popupShell );
			popupShell = null;
			return true;
		}
		return false;
	}

	protected Shell createPopupShell( )
	{
		POPUP_ATTACHING = true;
		Shell shell = getWizard( ).createPopupContainer( );
		shell.addDisposeListener( this );
		POPUP_ATTACHING = false;
		return shell;
	}

	protected void selectAllButtons( boolean isSelected )
	{
		// Do nothing
	}

	public void widgetDisposed( DisposeEvent e )
	{
		if ( e.widget.equals( popupShell ) )
		{
			if ( !POPUP_ATTACHING )
			{
				selectAllButtons( false );
			}
		}
	}

	protected void refreshPopupSheet( )
	{
		if ( popupShell != null && !popupShell.isDisposed( ) )
		{
			popupSheet.refreshComponent( popupShell );
		}
	}

	public void setIndex( int index )
	{
		subtaskIndex = index;
	}

	protected int getIndex( )
	{
		return subtaskIndex;
	}
}
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