/*
 * ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0
 * 
 * Copyright (c) 2006 The ObjectStyle Group and individual authors of the
 * software. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if any, must
 * include the following acknowlegement: "This product includes software
 * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
 * this acknowlegement may appear in the software itself, if and wherever such
 * third-party acknowlegements normally appear.
 * 
 * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
 * promote products derived from this software without prior written permission.
 * For written permission, please contact andrus@objectstyle.org.
 * 
 * 5. Products derived from this software may not be called "ObjectStyle" nor
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many individuals on
 * behalf of the ObjectStyle Group. For more information on the ObjectStyle
 * Group, please see <http://objectstyle.org/>.
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package org.objectstyle.wolips.eomodeler.editors.storedProcedure;

import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils;
import org.objectstyle.wolips.eomodeler.Messages;
import org.objectstyle.wolips.eomodeler.core.model.EOStoredProcedure;
import org.objectstyle.wolips.eomodeler.utils.FormUtils;
import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener;

public class EOStoredProcedureBasicEditorSection extends AbstractPropertySection implements ISelectionChangedListener {
	private EOStoredProcedure _storedProcedure;

	private Text _nameText;

	private Text _externalNameText;

	private DataBindingContext _bindingContext;

	public EOStoredProcedureBasicEditorSection() {
		// DO NOTHING
	}

	public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
		super.createControls(parent, tabbedPropertySheetPage);
		Composite form = getWidgetFactory().createFlatFormComposite(parent);
		FormLayout formLayout = new FormLayout();
		form.setLayout(formLayout);

		Composite topForm = FormUtils.createForm(getWidgetFactory(), form);
		
		getWidgetFactory().createCLabel(topForm, Messages.getString("EOStoredProcedure." + EOStoredProcedure.NAME), SWT.NONE);
		_nameText = new Text(topForm, SWT.BORDER);
		GridData nameLayoutData = new GridData(GridData.FILL_HORIZONTAL);
		_nameText.setLayoutData(nameLayoutData);
		UglyFocusHackWorkaroundListener.addListener(_nameText);

		getWidgetFactory().createCLabel(topForm, Messages.getString("EOStoredProcedure." + EOStoredProcedure.EXTERNAL_NAME), SWT.NONE);
		_externalNameText = new Text(topForm, SWT.BORDER);
		GridData externalLayoutData = new GridData(GridData.FILL_HORIZONTAL);
		_externalNameText.setLayoutData(externalLayoutData);
		UglyFocusHackWorkaroundListener.addListener(_externalNameText);
	}

	public void setInput(IWorkbenchPart part, ISelection selection) {
		if (ComparisonUtils.equals(selection, getSelection())) {
			return;
		}
		
		super.setInput(part, selection);
		disposeBindings();

		Object selectedObject = ((IStructuredSelection) selection).getFirstElement();
		_storedProcedure = (EOStoredProcedure) selectedObject;
		if (_storedProcedure != null) {
			_bindingContext = new DataBindingContext();
			_bindingContext.bindValue(SWTObservables.observeText(_nameText, SWT.Modify), BeansObservables.observeValue(_storedProcedure, EOStoredProcedure.NAME), null, null);
			_bindingContext.bindValue(SWTObservables.observeText(_externalNameText, SWT.Modify), BeansObservables.observeValue(_storedProcedure, EOStoredProcedure.EXTERNAL_NAME), null, null);
		}
	}

	protected void disposeBindings() {
		if (_bindingContext != null) {
			_bindingContext.dispose();
		}
	}

	public void dispose() {
		super.dispose();
		disposeBindings();
	}

	public void selectionChanged(SelectionChangedEvent event) {
		// DO NOTHING
	}
}
