EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.ui.group.grantedauthority;

import org.eclipse.nebula.widgets.compositetable.CompositeTable;

import org.eclipse.nebula.widgets.compositetable.IRowContentProvider;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.ScrolledComposite;

import org.eclipse.swt.dnd.DND;

import org.eclipse.swt.dnd.DropTarget;

import org.eclipse.swt.dnd.Transfer;

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;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import org.eclipse.ui.forms.widgets.FormToolkit;

import eu.etaxonomy.taxeditor.dnd.CdmAuthorityTableDropTargetListener;

import eu.etaxonomy.taxeditor.dnd.transfer.TaxonNodeTransfer;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

/**

 * Composite class which consists of a {@link CompositeTable} built specifically

 * for creating / editing CDM Authority objects

 * 

 * @author cmathew

 * @created Mar 28, 2013

 *

 */

public class CdmAuthorityComposite extends Composite {

	private final FormToolkit toolkit = new FormToolkit(Display.getCurrent());

	private CompositeTable table;

	private int numOfInitialCdmAuthorities;

	private CdmAuthorityCompositeViewer viewer;

	private CdmAuthorityTableHeader cdmAuthorityTableHeader;

	/**

	 * Creates the composite using the given parent, style and associated viewer.

	 * 

	 * @param parent composite to use as parent of this composite

	 * @param style 

	 * @param viewer viewer representing the model

	 */

	public CdmAuthorityComposite(Composite parent, int style, final CdmAuthorityCompositeViewer viewer) {

		super(parent, SWT.NONE);

		addDisposeListener(new DisposeListener() {

			public void widgetDisposed(DisposeEvent e) {

				toolkit.dispose();

			}

		});

		this.viewer = viewer;

		numOfInitialCdmAuthorities = viewer.getCdmAuthorities().size();

		setLayout(new GridLayout(2, false));

		setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	    Transfer[] transfers = new Transfer[] { TaxonNodeTransfer.getInstance() };	   

	    toolkit.adapt(this);

		toolkit.paintBordersFor(this);

		new Label(this, SWT.NONE);

		final Button cbShowUUIDheader = new Button(this, SWT.CHECK);

		cbShowUUIDheader.addSelectionListener(new SelectionAdapter() {

			@Override

			public void widgetSelected(SelectionEvent e) {

				boolean showUUIDHeader = ((Button)e.getSource()).getSelection();

				((CdmAuthorityTableHeader)table.getHeader()).setUuidHeaderVisible(showUUIDHeader);

				refresh();

			}

		});

		toolkit.adapt(cbShowUUIDheader, true, true);

		cbShowUUIDheader.setText("show uuid");

		table = new CompositeTable(this, SWT.NONE);

		GridData gd_table = new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1);

		gd_table.widthHint = 650;

		gd_table.heightHint = 400;

		table.setLayoutData(gd_table);

		cdmAuthorityTableHeader = new CdmAuthorityTableHeader(table, SWT.NULL);

		CdmAuthorityRow cdmAuthorityRow = new CdmAuthorityRow(table, SWT.NULL);

		table.setRunTime(true);

		table.setNumRowsInCollection(numOfInitialCdmAuthorities);

		table.setLinesVisible(true); 

		DropTarget dropTarget = new DropTarget(table, DND.DROP_MOVE);

		dropTarget.setTransfer(transfers);

		dropTarget.addDropListener(new CdmAuthorityTableDropTargetListener(viewer));

		table.addRowContentProvider(new IRowContentProvider() {

			public void refresh(CompositeTable sender, int currentObjectOffset, Control rowControl) {

				CdmAuthorityRow row = (CdmAuthorityRow) rowControl;		

				// add the newly created authority objects first and then the already existing ones.

				// this ensures the newly 'dragged' in objects always remain at the top

				if(currentObjectOffset < viewer.getNewCdmAuthorities().size()) {			

					row.setRowCdmAuthority(viewer, 

							viewer.getNewCdmAuthorities().get(currentObjectOffset), 

							true,

							cbShowUUIDheader.getSelection());

				} else {

					row.setRowCdmAuthority(viewer, 

							viewer.getCdmAuthorities().get(currentObjectOffset - viewer.getNewCdmAuthorities().size()), 

							false,

							cbShowUUIDheader.getSelection());

				}										

			}

		});

	}	

	/**

	 * Refreshes the table with underlying data

	 */

	public void refresh() {			

		numOfInitialCdmAuthorities = viewer.getNewCdmAuthorities().size() + viewer.getCdmAuthorities().size();			    	    

	    table.setNumRowsInCollection(numOfInitialCdmAuthorities);	  

	    table.refreshAllRows();

	}

}