EOFetchSpecOptionsEditorSection.java

/*
 * ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0
 * 
 * Copyright (c) 2006 The ObjectStyle Group and individual authors of the
 * software. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
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 * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
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package org.objectstyle.wolips.eomodeler.editors.fetchspec;

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.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
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.EOFetchSpecification;
import org.objectstyle.wolips.eomodeler.utils.BooleanUpdateValueStrategy;
import org.objectstyle.wolips.eomodeler.utils.FormUtils;
import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener;

public class EOFetchSpecOptionsEditorSection extends AbstractPropertySection {
	private EOFetchSpecification _fetchSpecification;

	private Text _fetchLimitText;

	private Button _promptsAfterFetchLimitButton;

	private Button _deepButton;

	private Button _usesDistinctButton;

	private Button _lockObjectsButton;

	private Button _refreshesRefetchedObjectsButton;

	private Button _requiresAllQualifierBindingVariablesButton;

	private DataBindingContext _bindingContext;

	public EOFetchSpecOptionsEditorSection() {
		// 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("EOFetchSpecification." + EOFetchSpecification.FETCH_LIMIT), SWT.NONE);
		_fetchLimitText = new Text(topForm, SWT.BORDER);
		GridData fetchLimitLayoutData = new GridData(GridData.FILL_HORIZONTAL);
		_fetchLimitText.setLayoutData(fetchLimitLayoutData);
		UglyFocusHackWorkaroundListener.addListener(_fetchLimitText);

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_promptsAfterFetchLimitButton = new Button(topForm, SWT.CHECK);
		_promptsAfterFetchLimitButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.PROMPTS_AFTER_FETCH_LIMIT));

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_deepButton = new Button(topForm, SWT.CHECK);
		_deepButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.DEEP));

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_usesDistinctButton = new Button(topForm, SWT.CHECK);
		_usesDistinctButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.USES_DISTINCT));

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_lockObjectsButton = new Button(topForm, SWT.CHECK);
		_lockObjectsButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.LOCKS_OBJECTS));

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_refreshesRefetchedObjectsButton = new Button(topForm, SWT.CHECK);
		_refreshesRefetchedObjectsButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.REFRESHES_REFETCHED_OBJECTS));

		getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
		_requiresAllQualifierBindingVariablesButton = new Button(topForm, SWT.CHECK);
		_requiresAllQualifierBindingVariablesButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.REQUIRES_ALL_QUALIFIER_BINDING_VARIABLES));

	}

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

		Object selectedObject = ((IStructuredSelection) selection).getFirstElement();
		_fetchSpecification = (EOFetchSpecification) selectedObject;
		if (_fetchSpecification != null) {
			_bindingContext = new DataBindingContext();
			_bindingContext.bindValue(SWTObservables.observeText(_fetchLimitText, SWT.Modify), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.FETCH_LIMIT), null, null);
			// new BindSpec(null, null, new RegexStringValidator("^[0-9]*$",
			// "^[0-9]+$", "Please enter a number"), null));
			_bindingContext.bindValue(SWTObservables.observeSelection(_promptsAfterFetchLimitButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.PROMPTS_AFTER_FETCH_LIMIT), null, new BooleanUpdateValueStrategy());
			_bindingContext.bindValue(SWTObservables.observeSelection(_deepButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.DEEP), null, new BooleanUpdateValueStrategy());
			_bindingContext.bindValue(SWTObservables.observeSelection(_usesDistinctButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.USES_DISTINCT), null, new BooleanUpdateValueStrategy());
			_bindingContext.bindValue(SWTObservables.observeSelection(_lockObjectsButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.LOCKS_OBJECTS), null, new BooleanUpdateValueStrategy());
			_bindingContext.bindValue(SWTObservables.observeSelection(_refreshesRefetchedObjectsButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.REFRESHES_REFETCHED_OBJECTS), null, new BooleanUpdateValueStrategy());
			_bindingContext.bindValue(SWTObservables.observeSelection(_requiresAllQualifierBindingVariablesButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.REQUIRES_ALL_QUALIFIER_BINDING_VARIABLES), null, new BooleanUpdateValueStrategy());
		}
	}

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

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