EDIT

// $Id$

/**

* 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 org.eclipse.ui.IWorkbench;

import org.eclipse.ui.IWorkbenchPreferencePage;

import eu.etaxonomy.cdm.api.service.IFeatureTreeService;

import eu.etaxonomy.cdm.model.description.FeatureTree;

import eu.etaxonomy.taxeditor.featuretree.FeatureTreeContentProvider;

import eu.etaxonomy.taxeditor.featuretree.FeatureTreeLabelProvider;

import eu.etaxonomy.taxeditor.model.MessagingUtils;

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

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * <p>DefaultFeatureTreePreferenecs class.</p>

 *

 * @author n.hoffmann

 * @created Sep 16, 2010

 * @version 1.0

 */

public class DefaultFeatureTreePreferenecs extends CdmPreferencePage implements IWorkbenchPreferencePage {

	private FeatureTree defaultFeatureTreeForTextualDescription;

	private FeatureTree defaultFeatureTreeForStructuredDescription;

	/* (non-Javadoc)

	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)

	 */

	/** {@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{

		    createTextTreeSelection(composite);

		    createStructureTreeSelection(composite);

		}

		return composite;

	}

	private void createTextTreeSelection(Composite parent){

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

		label.setText("Deafult Feature Tree to be used for textual descriptions");

		final ListViewer viewer = new ListViewer(parent);

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

		viewer.setContentProvider(new FeatureTreeContentProvider());

		viewer.setLabelProvider(new FeatureTreeLabelProvider());

		viewer.addSelectionChangedListener(new ISelectionChangedListener() {

			@Override

			public void selectionChanged(SelectionChangedEvent arg0) {

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

				defaultFeatureTreeForTextualDescription = (FeatureTree) selection.getFirstElement();

			}

		});

		List<FeatureTree> input = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);

		viewer.setInput(input);

		if(defaultFeatureTreeForTextualDescription != null){

			IStructuredSelection selection = new StructuredSelection(defaultFeatureTreeForTextualDescription);

			viewer.setSelection(selection, true);

		}

	}

	private void createStructureTreeSelection(Composite parent){

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

		label.setText("Deafult Feature Tree to be used for structured descriptions");

		final ListViewer viewer = new ListViewer(parent);

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

		viewer.setContentProvider(new FeatureTreeContentProvider());

		viewer.setLabelProvider(new FeatureTreeLabelProvider());

		viewer.addSelectionChangedListener(new ISelectionChangedListener() {

			@Override

			public void selectionChanged(SelectionChangedEvent arg0) {

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

				defaultFeatureTreeForStructuredDescription = (FeatureTree) selection.getFirstElement();

			}

		});

		List<FeatureTree> input = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);

		viewer.setInput(input);

		if(defaultFeatureTreeForStructuredDescription != null){

			IStructuredSelection selection = new StructuredSelection(defaultFeatureTreeForStructuredDescription);

			viewer.setSelection(selection, true);

		}

	}

	/** {@inheritDoc} */

	@Override

	public void init(IWorkbench workbench) {

		setPreferenceStore(PreferencesUtil.getPreferenceStore());

	}

	/** {@inheritDoc} */

	@Override

	public boolean performOk() {

		String defaultFeatureTreeForTextualDescriptionUuid = "";

		String defaultFeatureTreeForStructuredDescriptionUuid = "";

		if(defaultFeatureTreeForTextualDescription != null){

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

		}

		if(defaultFeatureTreeForStructuredDescription != null){

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

		}

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

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

		return super.performOk();

	}

}