bundles/addons/org.eclipse.apogy.addons.sensors.imaging.camera/src/org/eclipse/apogy/addons/sensors/imaging/camera/composites/ImageFrozenOverlayComposite.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.ImageFrozenOverlay;
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.conversion.Converter;
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.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

public class ImageFrozenOverlayComposite extends Composite {
	private ImageFrozenOverlay imageFrozenOverlay;

	private final Text expectedRefreshPeriodTxt;
	private final Text frozenMessageTxt;

	private final AbstractTextOverlayComposite abstractTextOverlayComposite;
	private final DrawnCameraOverlayPreviewComposite drawnCameraOverlayPreviewComposite;

	private DataBindingContext m_bindingContext;

	public ImageFrozenOverlayComposite(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("Frozen Settings");
		grpFrozen.setLayout(new GridLayout(4, false));

		Label lblNumberFormat = new Label(grpFrozen, SWT.NONE);
		lblNumberFormat.setText("Expected Image Refresh Period (s) :");

		this.expectedRefreshPeriodTxt = new Text(grpFrozen, SWT.BORDER);
		GridData gd_numberFormatTxt = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
		gd_numberFormatTxt.minimumWidth = 100;
		gd_numberFormatTxt.widthHint = 100;
		this.expectedRefreshPeriodTxt.setLayoutData(gd_numberFormatTxt);
		this.expectedRefreshPeriodTxt.addSelectionListener(new SelectionListener() {

			@Override
			public void widgetSelected(SelectionEvent e) {
				try {
					double expectedImageUpdatePeriod = Double
							.parseDouble(ImageFrozenOverlayComposite.this.expectedRefreshPeriodTxt.getText());
					newExpectedImageUpdatePeriodSelected(expectedImageUpdatePeriod);
				} catch (Exception ex) {
				}
			}

			@Override
			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});

		Label lblFrozenMessage = new Label(grpFrozen, SWT.NONE);
		lblFrozenMessage.setText("Frozen Message :");

		this.frozenMessageTxt = new Text(grpFrozen, SWT.BORDER);
		gd_numberFormatTxt.minimumWidth = 200;
		gd_numberFormatTxt.widthHint = 200;
		GridData gd_frozenMessageTxt = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
		gd_frozenMessageTxt.minimumWidth = 200;
		gd_frozenMessageTxt.widthHint = 200;
		this.frozenMessageTxt.setLayoutData(gd_frozenMessageTxt);
		this.frozenMessageTxt.addSelectionListener(new SelectionListener() {

			@Override
			public void widgetSelected(SelectionEvent e) {
				newFrozenMessageSelected(ImageFrozenOverlayComposite.this.frozenMessageTxt.getText());
			}

			@Override
			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});

		// 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 (ImageFrozenOverlayComposite.this.m_bindingContext != null)
					ImageFrozenOverlayComposite.this.m_bindingContext.dispose();

			}
		});
	}

	public ImageFrozenOverlay getImageFrozenOverlay() {
		return this.imageFrozenOverlay;
	}

	public void setImageFrozenOverlay(ImageFrozenOverlay imageFrozenOverlay) {
		if (this.m_bindingContext != null)
			this.m_bindingContext.dispose();

		this.imageFrozenOverlay = imageFrozenOverlay;

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

	protected void newExpectedImageUpdatePeriodSelected(double expectedImageUpdatePeriod) {
	}

	protected void newFrozenMessageSelected(String frozenMessage) {
	}

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

		/* Name Value. */
		IObservableValue<Double> observeNumberFormat = EMFEditProperties.value(
				ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.imageFrozenOverlay),
				FeaturePath.fromList(
						ApogyAddonsSensorsImagingCameraPackage.Literals.IMAGE_FROZEN_OVERLAY__EXPECTED_IMAGE_UPDATE_PERIOD))
				.observe(this.imageFrozenOverlay);
		IObservableValue<String> observeNumberFormatText = WidgetProperties.text(SWT.Modify)
				.observe(this.expectedRefreshPeriodTxt);

		bindingContext.bindValue(observeNumberFormatText, observeNumberFormat,
				new UpdateValueStrategy().setConverter(new Converter(String.class, Double.class) {
					@Override
					public Object convert(Object fromObject) {
						double tmp = ImageFrozenOverlayComposite.this.imageFrozenOverlay.getExpectedImageUpdatePeriod();
						try {
							tmp = Double.parseDouble((String) fromObject);
						} catch (Throwable t) {
						}

						return tmp;
					}

				}), new UpdateValueStrategy().setConverter(new Converter(Double.class, String.class) {
					@Override
					public Object convert(Object fromObject) {
						return ((Double) fromObject).toString();
					}

				}));

		/* Frozen Message Value. */
		IObservableValue<Double> observeFrozenMessage = EMFEditProperties
				.value(ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.imageFrozenOverlay),
						FeaturePath.fromList(
								ApogyAddonsSensorsImagingCameraPackage.Literals.IMAGE_FROZEN_OVERLAY__FROZEN_MESSAGE))
				.observe(this.imageFrozenOverlay);
		IObservableValue<String> observeFrozenMessageText = WidgetProperties.text(SWT.Modify)
				.observe(this.frozenMessageTxt);

		bindingContext.bindValue(observeFrozenMessageText, observeFrozenMessage, new UpdateValueStrategy(),
				new UpdateValueStrategy());

		return bindingContext;
	}
}