
package org.eclipse.birt.report.designer.internal.ui.views.attributes.section;

import org.eclipse.birt.report.designer.internal.ui.views.attributes.page.WidgetUtil;
import org.eclipse.birt.report.designer.internal.ui.views.attributes.provider.IDescriptorProvider;
import org.eclipse.birt.report.designer.internal.ui.views.attributes.widget.CheckPropertyDescriptor;
import org.eclipse.birt.report.designer.internal.ui.views.attributes.widget.DescriptorToolkit;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;

public class CheckSection extends Section
{

	public CheckSection( Composite parent, boolean isFormStyle )
	{
		super( " ", parent, isFormStyle ); //$NON-NLS-1$
	}

	public CheckSection( Composite parent, String title, boolean isFormStyle )
	{
		super( title, parent, isFormStyle );
	}

	protected CheckPropertyDescriptor check;

	public void createSection( )
	{
		if ( !getLabelText( ).trim( ).equals( "" ) ) //$NON-NLS-1$
			getLabelControl( parent );
		getCheckControl( parent );
		getGridPlaceholder( parent );
	}

	protected CheckPropertyDescriptor getCheckControl( Composite parent )
	{
		if ( check == null )
		{
			check = DescriptorToolkit.createCheckPropertyDescriptor( isFormStyle );
			check.setDescriptorProvider( getProvider( ) );
			check.createControl( parent );
			check.getControl( ).setLayoutData( new GridData( ) );
			check.getControl( ).addDisposeListener( new DisposeListener( ) {

				public void widgetDisposed( DisposeEvent event )
				{
					check = null;
				}
			} );
		}
		else
		{
			checkParent( check.getControl( ), parent );
		}
		return check;
	}

	public CheckPropertyDescriptor getCheckControl( )
	{
		return check;
	}

	public void layout( )
	{
		GridData gd = (GridData) check.getControl( ).getLayoutData( );
		if ( getLayoutNum( ) > 0 )
			gd.horizontalSpan = getLayoutNum( ) - placeholder;
		else
			gd.horizontalSpan = ( (GridLayout) parent.getLayout( ) ).numColumns
					- placeholder;
		if ( getLabelControl( ) != null )
			gd.horizontalSpan = gd.horizontalSpan - 1;
		gd.horizontalAlignment = GridData.FILL;
		if ( width > -1 )
		{
			gd.widthHint = width;
			gd.grabExcessHorizontalSpace = false;
		}
		else
			gd.grabExcessHorizontalSpace = fillCheck;

	}

	public void load( )
	{
		if ( check != null && !check.getControl( ).isDisposed( ) )
			check.load( );
	}

	public void reset( )
	{
		if ( check != null && !check.getControl( ).isDisposed( ) )
		{
			check.reset( );
		}
	}

	public void setInput( Object input )
	{
		assert ( input != null );
		check.setInput( input );
	}

	private int width = -1;

	public int getWidth( )
	{
		return width;
	}

	public void setWidth( int width )
	{
		this.width = width;
	}

	private boolean fillCheck = false;

	public boolean isFillCheck( )
	{
		return fillCheck;
	}

	public void setFillCheck( boolean fillCheck )
	{
		this.fillCheck = fillCheck;
	}

	public void setHidden( boolean isHidden )
	{
		if ( displayLabel != null )
			WidgetUtil.setExcludeGridData( displayLabel, isHidden );
		if ( check != null )
			check.setHidden( isHidden );
		if ( placeholderLabel != null )
			WidgetUtil.setExcludeGridData( placeholderLabel, isHidden );
	}

	public void setVisible( boolean isVisible )
	{
		if ( displayLabel != null )
			displayLabel.setVisible( isVisible );
		if ( check != null )
			check.setVisible( isVisible );
		if ( placeholderLabel != null )
			placeholderLabel.setVisible( isVisible );
	}

	IDescriptorProvider provider;

	public IDescriptorProvider getProvider( )
	{
		return provider;
	}

	public void setProvider( IDescriptorProvider provider )
	{
		this.provider = provider;
	}

}
