bundles/core/org.eclipse.apogy.core.environment.surface.ui/src/org/eclipse/apogy/core/environment/surface/ui/wizards/FixedPositionLineOfSightImageMapLayerWizardPage.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,
 *     Regent L'Archeveque - initial API and implementation
 *
 * SPDX-License-Identifier: EPL-1.0
 *     
 *******************************************************************************/
package org.eclipse.apogy.core.environment.surface.ui.wizards;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
import org.eclipse.apogy.common.math.ui.composites.Tuple3dComposite;
import org.eclipse.apogy.common.ui.composites.Color3fComposite;
import org.eclipse.apogy.core.environment.surface.AbstractMapLayer;
import org.eclipse.apogy.core.environment.surface.ApogySurfaceEnvironmentPackage;
import org.eclipse.apogy.core.environment.surface.CartesianTriangularMeshMapLayer;
import org.eclipse.apogy.core.environment.surface.FixedPositionLineOfSightImageMapLayer;
import org.eclipse.apogy.core.environment.surface.Map;
import org.eclipse.apogy.core.environment.surface.ui.ImageMapLayerUISettings;
import org.eclipse.apogy.core.environment.surface.ui.composites.ImageMapLayerPreviewComposite;
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.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.wizard.WizardPage;
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;
import org.eclipse.swt.widgets.Text;

public class FixedPositionLineOfSightImageMapLayerWizardPage extends WizardPage {
	private final static String WIZARD_PAGE_ID = "org.eclipse.apogy.core.environment.surface.ui.wizards.LineOfSightImageMapLayerWizardPage";

	private final FixedPositionLineOfSightImageMapLayer lineOfSightImageMapLayer;
	@SuppressWarnings("unused")
	private final ImageMapLayerUISettings uiSettings;

	@SuppressWarnings("unused")
	private Color3fComposite lineOfSightColor3fComposite;
	@SuppressWarnings("unused")
	private Color3fComposite noLineOfSightColor3fComposite;

	private Tuple3dComposite positionComposite;
	private Text txtTargetHeightAboveGround;
	private Button btnUseHeightPerpendicularToGround;

	private ImageMapLayerPreviewComposite imagePreviewComposite;
	private DataBindingContext m_bindingContext;

	public FixedPositionLineOfSightImageMapLayerWizardPage(
			FixedPositionLineOfSightImageMapLayer lineOfSightImageMapLayer, ImageMapLayerUISettings uiSettings) {
		super(WIZARD_PAGE_ID);

		this.lineOfSightImageMapLayer = lineOfSightImageMapLayer;
		this.uiSettings = uiSettings;

		setTitle("Line Of Sight Image Layer");
		setDescription("Configure the line of sight colors and position settings.");

		validate();
	}

	@Override
	public void createControl(Composite parent) {
		Composite container = new Composite(parent, SWT.None);
		container.setLayout(new GridLayout(2, false));

		Group colorGroup = new Group(container, SWT.BORDER);
		colorGroup.setLayout(new GridLayout(2, false));
		colorGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
		colorGroup.setText("Colors");

		Label lblLineOfSightColor = new Label(colorGroup, SWT.NONE);
		lblLineOfSightColor.setAlignment(SWT.RIGHT);
		lblLineOfSightColor.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
		lblLineOfSightColor.setText("Line Of Sight Color :");
		this.lineOfSightColor3fComposite = new Color3fComposite(colorGroup, SWT.NONE, "", true,
				this.lineOfSightImageMapLayer,
				ApogySurfaceEnvironmentPackage.Literals.ABSTRACT_LINE_OF_SIGHT_IMAGE_MAP_LAYER__LINE_OF_SIGHT_AVAILABLE_COLOR);

		Label lblNoLineOfSightColor = new Label(colorGroup, SWT.NONE);
		lblNoLineOfSightColor.setAlignment(SWT.RIGHT);
		lblNoLineOfSightColor.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
		lblNoLineOfSightColor.setText("No Line Of Sight Color :");
		this.noLineOfSightColor3fComposite = new Color3fComposite(colorGroup, SWT.NONE, "", true,
				this.lineOfSightImageMapLayer,
				ApogySurfaceEnvironmentPackage.Literals.ABSTRACT_LINE_OF_SIGHT_IMAGE_MAP_LAYER__LINE_OF_SIGHT_NOT_AVAILABLE_COLOR);

		Group positionGroup = new Group(container, SWT.BORDER);
		positionGroup.setLayout(new GridLayout(2, false));
		positionGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
		positionGroup.setText("Position and Target Height");

		Label lblObserverPosition = new Label(positionGroup, SWT.NONE);
		lblObserverPosition.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
		lblObserverPosition.setText("Observer Position (m):");

		this.positionComposite = new Tuple3dComposite(positionGroup, SWT.BORDER,
				ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.lineOfSightImageMapLayer));
		this.positionComposite.setTuple3d(this.lineOfSightImageMapLayer.getObserverPosition());

		Label lblTargetHeightAboveGround = new Label(positionGroup, SWT.NONE);
		lblTargetHeightAboveGround.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
		lblTargetHeightAboveGround.setText("Target Height Above Ground (m):");

		this.txtTargetHeightAboveGround = new Text(positionGroup, SWT.BORDER);
		GridData gd_txtTargetHeightAboveGround = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1);
		gd_txtTargetHeightAboveGround.minimumWidth = 100;
		gd_txtTargetHeightAboveGround.widthHint = 100;
		this.txtTargetHeightAboveGround.setLayoutData(gd_txtTargetHeightAboveGround);
		this.txtTargetHeightAboveGround.setToolTipText("The height of the target above ground.");

		Label lblAutoScale = new Label(positionGroup, SWT.NONE);
		lblAutoScale.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
		lblAutoScale.setText("Height Perpendicular To Ground :");

		this.btnUseHeightPerpendicularToGround = new Button(positionGroup, SWT.CHECK);
		this.btnUseHeightPerpendicularToGround.setAlignment(SWT.RIGHT);
		this.btnUseHeightPerpendicularToGround.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false, 1, 1));
		this.btnUseHeightPerpendicularToGround.setText("");
		this.btnUseHeightPerpendicularToGround.setToolTipText(
				"Whether or not to find each target position using the local normal. Using the local normal requires more processing time.");

		// Image Preview.
		Group imageGroup = new Group(container, SWT.BORDER);
		imageGroup.setLayout(new GridLayout(1, false));
		imageGroup.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 2, 1));
		imageGroup.setText("Derived Image");

		this.imagePreviewComposite = new ImageMapLayerPreviewComposite(imageGroup, SWT.NONE,
				this.lineOfSightImageMapLayer);
		GridData gd_imagePreviewComposite = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
		gd_imagePreviewComposite.widthHint = 200;
		gd_imagePreviewComposite.heightHint = 200;
		gd_imagePreviewComposite.minimumHeight = 200;
		gd_imagePreviewComposite.minimumWidth = 200;
		this.imagePreviewComposite.setLayoutData(gd_imagePreviewComposite);
		this.imagePreviewComposite.setImageMapLayer(this.lineOfSightImageMapLayer);

		setControl(container);

		// Bindings
		this.m_bindingContext = initDataBindingsCustom();

		validate();

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

			}
		});
	}

	protected void validate() {
		setErrorMessage(null);

		// TODO Validate the Slope Ranges.

		setPageComplete(getErrorMessage() == null);
	}

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

		/* Target Height above Ground Value. */
		IObservableValue<Double> observeTargetHeightAboveGround = EMFEditProperties.value(
				ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.lineOfSightImageMapLayer),
				FeaturePath.fromList(
						ApogySurfaceEnvironmentPackage.Literals.ABSTRACT_LINE_OF_SIGHT_IMAGE_MAP_LAYER__TARGET_HEIGHT_ABOVE_GROUND))
				.observe(this.lineOfSightImageMapLayer);
		IObservableValue<String> observeTargetHeightAboveGroundText = WidgetProperties.text(SWT.Modify)
				.observe(this.txtTargetHeightAboveGround);

		bindingContext.bindValue(observeTargetHeightAboveGroundText, observeTargetHeightAboveGround,
				new UpdateValueStrategy().setConverter(new Converter(String.class, Double.class) {
					@Override
					public Object convert(Object fromObject) {
						return Double.parseDouble((String) fromObject);
					}

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

				}));

		/* Perpendicular. */
		IObservableValue<Double> observeHeightPerpendicular = EMFEditProperties.value(
				ApogyCommonTransactionFacade.INSTANCE.getTransactionalEditingDomain(this.lineOfSightImageMapLayer),
				FeaturePath.fromList(
						ApogySurfaceEnvironmentPackage.Literals.ABSTRACT_LINE_OF_SIGHT_IMAGE_MAP_LAYER__USE_HEIGHT_PERPENDICULAR_TO_GROUND))
				.observe(this.lineOfSightImageMapLayer);
		IObservableValue<String> observeHeightPerpendicularButtton = WidgetProperties.selection()
				.observe(this.btnUseHeightPerpendicularToGround);

		bindingContext.bindValue(observeHeightPerpendicularButtton, observeHeightPerpendicular,
				new UpdateValueStrategy(), new UpdateValueStrategy());

		return bindingContext;
	}

	public class CompositeFilterContentProvider implements ITreeContentProvider {
		@Override
		public void dispose() {
		}

		@Override
		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		}

		@Override
		public Object[] getElements(Object inputElement) {
			if (inputElement instanceof Map) {
				Map map = (Map) inputElement;

				// Keeps only ImageMapLayer.
				return filterMap(map).toArray();
			}

			return null;
		}

		@Override
		public Object[] getChildren(Object parentElement) {
			if (parentElement instanceof Map) {
				Map map = (Map) parentElement;

				// Keeps only ImageMapLayer.
				return filterMap(map).toArray();
			}

			return null;
		}

		@Override
		public Object getParent(Object element) {
			return null;
		}

		@Override
		public boolean hasChildren(Object element) {
			if (element instanceof Map) {
				Map map = (Map) element;
				return !filterMap(map).isEmpty();
			} else {
				return false;
			}
		}

		protected List<CartesianTriangularMeshMapLayer> filterMap(Map map) {
			List<CartesianTriangularMeshMapLayer> imageMapLayers = new ArrayList<CartesianTriangularMeshMapLayer>();
			for (AbstractMapLayer layer : map.getLayers()) {
				if (layer instanceof CartesianTriangularMeshMapLayer) {
					imageMapLayers.add(((CartesianTriangularMeshMapLayer) layer));
				}
			}

			return imageMapLayers;
		}
	}
}