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.preference;

import java.util.List;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.ListViewer;

import org.eclipse.jface.viewers.SelectionChangedEvent;

import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.CLabel;

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 eu.etaxonomy.cdm.api.service.ITermTreeService;

import eu.etaxonomy.cdm.model.term.TermTree;

import eu.etaxonomy.taxeditor.l10n.Messages;

import eu.etaxonomy.taxeditor.model.MessagingUtils;

import eu.etaxonomy.taxeditor.preference.menu.CdmPreferencePage;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.termtree.TermTreeContentProvider;

import eu.etaxonomy.taxeditor.termtree.TermTreeLabelProvider;

/**

 * <p>DefaultFeatureTreePreferenecs class.</p>

 *

 * @author n.hoffmann

 * @created Sep 16, 2010

 */

public class DefaultFeatureTreePreferenecs extends CdmPreferencePage {

	private TermTree defaultFeatureTreeForTextualDescription;

	private TermTree defaultFeatureTreeForStructuredDescription;

	private ListViewer viewerText;

	private  ListViewer viewerStructure;

	/** {@inheritDoc} */

	@Override

	protected Control createContents(Composite parent) {

		defaultFeatureTreeForTextualDescription = PreferencesUtil.getDefaultFeatureTreeForTextualDescription();

		defaultFeatureTreeForStructuredDescription = PreferencesUtil.getDefaultFeatureTreeForStructuredDescription();

		Composite composite = new Composite(parent, SWT.NULL);

		composite.setLayout(new GridLayout());

		if(!CdmStore.isActive()) {

            MessagingUtils.noDataSourceWarningDialog(null);

		}else{

		    createStructureTreeSelection(composite);

		    createTextTreeSelection(composite);

		}

		return composite;

	}

	private void createTextTreeSelection(Composite parent){

		final CLabel label = new CLabel(parent, SWT.NONE);

		label.setText(Messages.DefaultFeatureTreePreferenecs_0);

		viewerText = new ListViewer(parent, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);

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

		viewerText.setContentProvider(new TermTreeContentProvider());

		viewerText.setLabelProvider(new TermTreeLabelProvider());

		viewerText.addSelectionChangedListener(new ISelectionChangedListener() {

			@Override

			public void selectionChanged(SelectionChangedEvent arg0) {

			    setApply(true);

//			    viewer.setSelection(arg0.getSelection());

				IStructuredSelection selection = (IStructuredSelection) viewerText.getSelection();

				defaultFeatureTreeForTextualDescription = (TermTree)selection.getFirstElement();

			}

		});

		List<TermTree> input = CdmStore.getService(ITermTreeService.class).list(TermTree.class, null, null, null, null);

		viewerText.setInput(input);

		if(defaultFeatureTreeForTextualDescription != null){

			IStructuredSelection selection = new StructuredSelection(defaultFeatureTreeForTextualDescription);

			viewerText.setSelection(selection, true);

		}

	}

	private void createStructureTreeSelection(Composite parent){

		final CLabel label = new CLabel(parent, SWT.NONE);

		label.setText(Messages.DefaultFeatureTreePreferenecs_1);

		viewerStructure = new ListViewer(parent, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);

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

		viewerStructure.setContentProvider(new TermTreeContentProvider());

		viewerStructure.setLabelProvider(new TermTreeLabelProvider());

		viewerStructure.addSelectionChangedListener(new ISelectionChangedListener() {

			@Override

			public void selectionChanged(SelectionChangedEvent arg0) {

			    setApply(true);

//			    viewer.setSelection(arg0.getSelection());

				IStructuredSelection selection = (IStructuredSelection) viewerStructure.getSelection();

				defaultFeatureTreeForStructuredDescription = (TermTree) selection.getFirstElement();

			}

		});

		List<TermTree> input = CdmStore.getService(ITermTreeService.class).list(TermTree.class, null, null, null, null);

		viewerStructure.setInput(input);

		if(defaultFeatureTreeForStructuredDescription != null){

			IStructuredSelection selection = new StructuredSelection(defaultFeatureTreeForStructuredDescription);

			viewerStructure.setSelection(selection, true);

		}

	}

	/** {@inheritDoc} */

	@Override

	public boolean performOk() {

		String defaultFeatureTreeForTextualDescriptionUuid = ""; //$NON-NLS-1$

		String defaultFeatureTreeForStructuredDescriptionUuid = ""; //$NON-NLS-1$

		if(defaultFeatureTreeForTextualDescription != null){

			defaultFeatureTreeForTextualDescriptionUuid = defaultFeatureTreeForTextualDescription.getUuid().toString();

		}

		if(defaultFeatureTreeForStructuredDescription != null){

			defaultFeatureTreeForStructuredDescriptionUuid = defaultFeatureTreeForStructuredDescription.getUuid().toString();

		}

		getPreferenceStore().setValue(PreferencesUtil.createPreferenceString(IPreferenceKeys.FEATURE_TREE_DEFAULT_TEXT), defaultFeatureTreeForTextualDescriptionUuid);

		getPreferenceStore().setValue(PreferencesUtil.createPreferenceString(IPreferenceKeys.FEATURE_TREE_DEFAULT_STRUCTURE), defaultFeatureTreeForStructuredDescriptionUuid);

		return super.performOk();

	}

	@Override

    protected void performDefaults() {

		defaultFeatureTreeForTextualDescription = null;

		defaultFeatureTreeForTextualDescription = null;

		viewerStructure.setSelection(null);

		viewerText.setSelection(null);

        setApply(true);

        super.performDefaults();

    }

}