bundles/addons/org.eclipse.apogy.addons.sensors.imaging.camera/src/org/eclipse/apogy/addons/sensors/imaging/camera/composites/ImageCountOverlayComposite.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pierre Allard - initial API and implementation
 *     Regent L'Archeveque
 * 
 * SPDX-License-Identifier: EPL-1.0
 *******************************************************************************/
package org.eclipse.apogy.addons.sensors.imaging.camera.composites;

import org.eclipse.apogy.addons.sensors.imaging.camera.ApogyAddonsSensorsImagingCameraPackage;
import org.eclipse.apogy.addons.sensors.imaging.camera.ImageCountOverlay;
import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.emf.databinding.FeaturePath;
import org.eclipse.emf.databinding.edit.EMFEditProperties;
import org.eclipse.jface.databinding.swt.WidgetProperties;
import org.eclipse.swt.SWT;
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.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;

public class ImageCountOverlayComposite extends Composite {
	private ImageCountOverlay imageCountOverlay;

	private final Button indicatorVisibleBtn;
	private final AbstractTextOverlayComposite abstractTextOverlayComposite;
	private final DrawnCameraOverlayPreviewComposite drawnCameraOverlayPreviewComposite;

	private DataBindingContext m_bindingContext;

	public ImageCountOverlayComposite(Composite parent, int style) {
		super(parent, style);
		setLayout(new GridLayout(1, false));

		Group grpGeneral = new Group(this, SWT.NONE);
		grpGeneral.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
		grpGeneral.setText("General");
		grpGeneral.setLayout(new GridLayout(2, false));

		this.abstractTextOverlayComposite = new AbstractTextOverlayComposite(grpGeneral, SWT.NONE);
		this.abstractTextOverlayComposite.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));

		Group grpFrozen = new Group(this, SWT.NONE);
		grpFrozen.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
		grpFrozen.setText("Count Settings");
		grpFrozen.setLayout(new GridLayout(2, false));

		Label lblNumberFormat = new Label(grpFrozen, SWT.NONE);
		lblNumberFormat.setText("Indicator Visible:");

		this.indicatorVisibleBtn = new Button(grpFrozen, SWT.CHECK);

		// Preview
		Group grpPreview = new Group(this, SWT.NONE);
		grpPreview.setLayout(new GridLayout(1, false));
		grpPreview.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 2, 1));
		grpPreview.setText("Preview");

		this.drawnCameraOverlayPreviewComposite = new DrawnCameraOverlayPreviewComposite(grpPreview, SWT.BORDER);
		GridData gd_imagePreviewComposite = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
		gd_imagePreviewComposite.minimumWidth = 160;
		gd_imagePreviewComposite.minimumHeight = 320;
		this.drawnCameraOverlayPreviewComposite.setLayoutData(gd_imagePreviewComposite);

		// Dispose
		addDisposeListener(new DisposeListener() {
			@Override
			public void widgetDisposed(DisposeEvent e) {
				if (ImageCountOverlayComposite.this.m_bindingContext != null)
					ImageCountOverlayComposite.this.m_bindingContext.dispose();

			}
		});
	}

	public ImageCountOverlay getImageCountOverlay() {
		return this.imageCountOverlay;
	}

	public void setImageCountOverlay(ImageCountOverlay imageCountOverlay) {
		if (this.m_bindingContext != null)
			this.m_bindingContext.dispose();

		this.imageCountOverlay = imageCountOverlay;

		if (imageCountOverlay != null) {
			this.abstractTextOverlayComposite.setAbstractTextOverlay(imageCountOverlay);
			this.drawnCameraOverlayPreviewComposite.setDrawnCameraOverlay(imageCountOverlay);
			this.m_bindingContext = initDataBindingsCustom();
		}
	}

	@SuppressWarnings("unchecked")
	private DataBindingContext initDataBindingsCustom() {
		DataBindingContext bindingContext = new DataBindingContext();

		/* Name Value. */
		IObservableValue<Boolean> observeIndicatorVisible = EMFEditProperties
				.value(ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.imageCountOverlay),
						FeaturePath.fromList(
								ApogyAddonsSensorsImagingCameraPackage.Literals.IMAGE_COUNT_OVERLAY__INDICATOR_VISIBLE))
				.observe(this.imageCountOverlay);

		IObservableValue<String> observeIndicatorVisibleButtton = WidgetProperties.selection()
				.observe(this.indicatorVisibleBtn);

		bindingContext.bindValue(observeIndicatorVisibleButtton, observeIndicatorVisible, new UpdateValueStrategy(),
				new UpdateValueStrategy());

		return bindingContext;
	}
}