bundles/common/org.eclipse.apogy.common.emf.ui/src/org/eclipse/apogy/common/emf/ui/preferences/UnitsProvidersUnitsMapComposite.java - gerrit/apogy/apogy - Git at Google

 /*******************************************************************************
  * 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,
  *     Olivier L. Larouche - initial API and implementation
  * SPDX-License-Identifier: EPL-1.0
  *
  *******************************************************************************/
 package org.eclipse.apogy.common.emf.ui.preferences;

 import java.util.Map.Entry;

 import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFacade;
 import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFactory;
 import org.eclipse.apogy.common.emf.ui.EOperationEParametersUnitsProvider;
 import org.eclipse.apogy.common.emf.ui.EOperationEParametersUnitsProviderParameters;
 import org.eclipse.apogy.common.emf.ui.ETypedElementToUnitsMap;
 import org.eclipse.apogy.common.emf.ui.UnitsProvider;
 import org.eclipse.apogy.common.emf.ui.impl.ETypedElementToUnitsKeyValueImpl;
 import org.eclipse.core.databinding.DataBindingContext;
 import org.eclipse.core.databinding.UpdateValueStrategy;
 import org.eclipse.core.databinding.conversion.Converter;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.ecore.EAttribute;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EParameter;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.ETypedElement;
 import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
 import org.eclipse.jface.databinding.swt.ISWTObservableValue;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.jface.databinding.viewers.IViewerObservableValue;
 import org.eclipse.jface.databinding.viewers.ViewerProperties;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.TreeViewerColumn;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Image;
 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.Tree;
 import org.eclipse.swt.widgets.TreeColumn;

 public class UnitsProvidersUnitsMapComposite extends Composite {

 	private DataBindingContext dataBindingContext;

 	private final AdapterFactory adapterFactory = new ComposedAdapterFactory(
 			ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

 	private final TreeViewer treeViewer;
 	private final Button deleteButton;

 	private ETypedElementToUnitsMap map;

 	public UnitsProvidersUnitsMapComposite(Composite parent, int style) {
 		super(parent, style);
 		setLayout(new GridLayout(2, false));
 		addDisposeListener(new DisposeListener() {

 			@Override
 			public void widgetDisposed(DisposeEvent e) {
 				if (UnitsProvidersUnitsMapComposite.this.dataBindingContext != null) {
 					UnitsProvidersUnitsMapComposite.this.dataBindingContext.dispose();
 				}
 			}
 		});

 		/** Tree viewer with: | the unit | the converted current value | */
 		this.treeViewer = new TreeViewer(this, SWT.BORDER);
 		Tree tree = this.treeViewer.getTree();
 		GridData gd_treeViewer = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 2);
 		gd_treeViewer.heightHint = 1;
 		tree.setLayoutData(gd_treeViewer);
 		tree.setHeaderVisible(true);
 		tree.setLinesVisible(true);

 		TreeViewerColumn treeViewerTypedElementColumn = new TreeViewerColumn(this.treeViewer, SWT.NONE);
 		TreeColumn treeclmnTypedElement = treeViewerTypedElementColumn.getColumn();
 		treeclmnTypedElement.setWidth(150);
 		treeclmnTypedElement.setText("Typed element");

 		TreeViewerColumn treeViewerProviderColumn = new TreeViewerColumn(this.treeViewer, SWT.NONE);
 		TreeColumn treeclmnProvider = treeViewerProviderColumn.getColumn();
 		treeclmnProvider.setWidth(150);
 		treeclmnProvider.setText("Unit");

 		this.treeViewer.setLabelProvider(new UnitsProvidersLabelProvider(this.adapterFactory));
 		this.treeViewer.setContentProvider(new UnitsProvidersContentProvider(this.adapterFactory));

 		/** Delete entry button */
 		this.deleteButton = new Button(this, SWT.None);
 		this.deleteButton.setText("Delete");
 		this.deleteButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 1, 1));
 		this.deleteButton.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				Object obj = UnitsProvidersUnitsMapComposite.this.treeViewer.getStructuredSelection().getFirstElement();

 				if (obj instanceof ETypedElementToUnitsKeyValueImpl) {
 					ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) UnitsProvidersUnitsMapComposite.this.treeViewer
 							.getStructuredSelection().getFirstElement();
 					UnitsProvidersUnitsMapComposite.this.map.getEntries().removeKey(entry.getKey());
 				} else if (obj instanceof EParameter) {
 					EParameter param = (EParameter) obj;
 					EOperationEParametersUnitsProvider provider = (EOperationEParametersUnitsProvider) UnitsProvidersUnitsMapComposite.this.map
 							.getEntries().get(param.getEOperation());
 					provider.getMap().getEntries().removeKey(param);
 				}
 				UnitsProvidersUnitsMapComposite.this.treeViewer.refresh();
 			}
 		});

 		initDataBindings();
 	}

 	/**
 	 * Sets the map that is displayed in the composite
 	 *
 	 * @param map
 	 */
 	public void setMap(ETypedElementToUnitsMap map) {

 		this.map = map;

 		this.treeViewer.setInput(map);
 	}

 	/**
 	 * Gets the modified map.
 	 */
 	public ETypedElementToUnitsMap getMap() {
 		return this.map;
 	}

 	private void initDataBindings() {
 		if (this.dataBindingContext != null) {
 			this.dataBindingContext.dispose();
 		}

 		this.dataBindingContext = new DataBindingContext();

 		/** TreeViewer selection observable */
 		IViewerObservableValue treeViewerSelectionObservableValue = ViewerProperties.singleSelection()
 				.observe(this.treeViewer);
 		/** Button enable observable */
 		ISWTObservableValue deleteButtonEnableObservableValue = WidgetProperties.enabled().observe(this.deleteButton);

 		this.dataBindingContext.bindValue(deleteButtonEnableObservableValue, treeViewerSelectionObservableValue,
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
 						.setConverter(new Converter(Object.class, boolean.class) {

 							@Override
 							public Object convert(Object fromObject) {
 								return fromObject != null;
 							}
 						}));

 	}

 	/**
 	 * Label provider for the tree viewer.
 	 */
 	// TODO add other UnitsProvidersTypes if new are created.
 	private class UnitsProvidersLabelProvider extends AdapterFactoryLabelProvider {

 		public UnitsProvidersLabelProvider(AdapterFactory adapterFactory) {
 			super(adapterFactory);
 		}

 		private static final int TYPED_ELEMENT_COLUMN_ID = 0;
 		private static final int UNITS_COLUMN_ID = 1;

 		@Override
 		public String getColumnText(Object object, int columnIndex) {
 			if (object instanceof Entry) {
 				@SuppressWarnings("unchecked")
 				Entry<ETypedElement, UnitsProvider> entry = (Entry<ETypedElement, UnitsProvider>) object;
 				switch (columnIndex) {
 				case TYPED_ELEMENT_COLUMN_ID:
 					/** Typed element name */

 					// Return the fully qualified name of the type element.

 					return getString(entry.getKey());

 				case UNITS_COLUMN_ID:
 					/** UnitsProvider itemProvider .toString() */
 					return entry.getValue() instanceof EOperationEParametersUnitsProvider ? ""
 							: super.getColumnText(entry.getValue(), columnIndex);
 				default:
 				}
 			}

 			if (object instanceof EParameter) {
 				EParameter param = (EParameter) object;
 				switch (columnIndex) {
 				case TYPED_ELEMENT_COLUMN_ID:
 					return param.getName();
 				case UNITS_COLUMN_ID:
 					EOperationEParametersUnitsProviderParameters params = ApogyCommonEMFUIFactory.eINSTANCE
 							.createEOperationEParametersUnitsProviderParameters();
 					params.setParam(param);
 					return ApogyCommonEMFUIFacade.INSTANCE.getDisplayUnits(param.getEOperation(), params).toString();
 				default:
 				}
 			}
 			return super.getColumnText(object, columnIndex);
 		}

 		@Override
 		public Image getColumnImage(Object object, int columnIndex) {
 			return null;
 		}

 		private String getString(final ETypedElement element) {
 			EObject currentETypedElement = element;
 			String string = null;

 			while (currentETypedElement != null) {
 				if (currentETypedElement instanceof EStructuralFeature) {
 					EStructuralFeature eStructuralFeature = (EStructuralFeature) currentETypedElement;

 					if (string != null)
 						string = eStructuralFeature.getName() + "." + string;
 					else
 						string = eStructuralFeature.getName();

 					currentETypedElement = eStructuralFeature.eContainer();
 				} else if (currentETypedElement instanceof EAttribute) {
 					EAttribute eAttribute = (EAttribute) currentETypedElement;
 					if (string != null)
 						string = eAttribute.getName() + "." + string;
 					else
 						string = eAttribute.getName();

 					currentETypedElement = eAttribute.eContainer();
 				} else if (currentETypedElement instanceof EClass) {
 					EClass eClass = (EClass) currentETypedElement;

 					if (string != null)
 						string = eClass.getName() + "." + string;
 					else
 						string = eClass.getName();

 					currentETypedElement = eClass.eContainer();
 				} else {
 					currentETypedElement = null;
 				}
 			}
 			return string;
 		}
 	}

 	/**
 	 * Content provider for the native units list tree.
 	 */
 	// TODO add other UnitsProvider types if new are created.
 	private class UnitsProvidersContentProvider extends AdapterFactoryContentProvider {

 		public UnitsProvidersContentProvider(AdapterFactory adapterFactory) {
 			super(adapterFactory);
 		}

 		@Override
 		public Object[] getChildren(Object object) {
 			if (object instanceof ETypedElementToUnitsKeyValueImpl) {
 				ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) object;

 				return ((EOperationEParametersUnitsProvider) entry.getValue()).getMap().getEntries().keySet().toArray();
 			}
 			return null;
 		}

 		@Override
 		public boolean hasChildren(Object object) {
 			if (object instanceof ETypedElementToUnitsKeyValueImpl) {
 				ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) object;

 				return entry.getValue() instanceof EOperationEParametersUnitsProvider;
 			}
 			return false;
 		}

 	}

 }
	/*******************************************************************************
	* 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,
	* Olivier L. Larouche - initial API and implementation
	* SPDX-License-Identifier: EPL-1.0
	*
	*******************************************************************************/
	package org.eclipse.apogy.common.emf.ui.preferences;

	import java.util.Map.Entry;

	import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFacade;
	import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFactory;
	import org.eclipse.apogy.common.emf.ui.EOperationEParametersUnitsProvider;
	import org.eclipse.apogy.common.emf.ui.EOperationEParametersUnitsProviderParameters;
	import org.eclipse.apogy.common.emf.ui.ETypedElementToUnitsMap;
	import org.eclipse.apogy.common.emf.ui.UnitsProvider;
	import org.eclipse.apogy.common.emf.ui.impl.ETypedElementToUnitsKeyValueImpl;
	import org.eclipse.core.databinding.DataBindingContext;
	import org.eclipse.core.databinding.UpdateValueStrategy;
	import org.eclipse.core.databinding.conversion.Converter;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.ecore.EAttribute;
	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EParameter;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.ETypedElement;
	import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
	import org.eclipse.jface.databinding.swt.ISWTObservableValue;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.jface.databinding.viewers.IViewerObservableValue;
	import org.eclipse.jface.databinding.viewers.ViewerProperties;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.TreeViewerColumn;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Image;
	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.Tree;
	import org.eclipse.swt.widgets.TreeColumn;

	public class UnitsProvidersUnitsMapComposite extends Composite {

	private DataBindingContext dataBindingContext;

	private final AdapterFactory adapterFactory = new ComposedAdapterFactory(
	ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

	private final TreeViewer treeViewer;
	private final Button deleteButton;

	private ETypedElementToUnitsMap map;

	public UnitsProvidersUnitsMapComposite(Composite parent, int style) {
	super(parent, style);
	setLayout(new GridLayout(2, false));
	addDisposeListener(new DisposeListener() {

	@Override
	public void widgetDisposed(DisposeEvent e) {
	if (UnitsProvidersUnitsMapComposite.this.dataBindingContext != null) {
	UnitsProvidersUnitsMapComposite.this.dataBindingContext.dispose();
	}
	}
	});

	/** Tree viewer with: \| the unit \| the converted current value \| */
	this.treeViewer = new TreeViewer(this, SWT.BORDER);
	Tree tree = this.treeViewer.getTree();
	GridData gd_treeViewer = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 2);
	gd_treeViewer.heightHint = 1;
	tree.setLayoutData(gd_treeViewer);
	tree.setHeaderVisible(true);
	tree.setLinesVisible(true);

	TreeViewerColumn treeViewerTypedElementColumn = new TreeViewerColumn(this.treeViewer, SWT.NONE);
	TreeColumn treeclmnTypedElement = treeViewerTypedElementColumn.getColumn();
	treeclmnTypedElement.setWidth(150);
	treeclmnTypedElement.setText("Typed element");

	TreeViewerColumn treeViewerProviderColumn = new TreeViewerColumn(this.treeViewer, SWT.NONE);
	TreeColumn treeclmnProvider = treeViewerProviderColumn.getColumn();
	treeclmnProvider.setWidth(150);
	treeclmnProvider.setText("Unit");

	this.treeViewer.setLabelProvider(new UnitsProvidersLabelProvider(this.adapterFactory));
	this.treeViewer.setContentProvider(new UnitsProvidersContentProvider(this.adapterFactory));

	/** Delete entry button */
	this.deleteButton = new Button(this, SWT.None);
	this.deleteButton.setText("Delete");
	this.deleteButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 1, 1));
	this.deleteButton.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	Object obj = UnitsProvidersUnitsMapComposite.this.treeViewer.getStructuredSelection().getFirstElement();

	if (obj instanceof ETypedElementToUnitsKeyValueImpl) {
	ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) UnitsProvidersUnitsMapComposite.this.treeViewer
	.getStructuredSelection().getFirstElement();
	UnitsProvidersUnitsMapComposite.this.map.getEntries().removeKey(entry.getKey());
	} else if (obj instanceof EParameter) {
	EParameter param = (EParameter) obj;
	EOperationEParametersUnitsProvider provider = (EOperationEParametersUnitsProvider) UnitsProvidersUnitsMapComposite.this.map
	.getEntries().get(param.getEOperation());
	provider.getMap().getEntries().removeKey(param);
	}
	UnitsProvidersUnitsMapComposite.this.treeViewer.refresh();
	}
	});

	initDataBindings();
	}

	/**
	* Sets the map that is displayed in the composite
	*
	* @param map
	*/
	public void setMap(ETypedElementToUnitsMap map) {

	this.map = map;

	this.treeViewer.setInput(map);
	}

	/**
	* Gets the modified map.
	*/
	public ETypedElementToUnitsMap getMap() {
	return this.map;
	}

	private void initDataBindings() {
	if (this.dataBindingContext != null) {
	this.dataBindingContext.dispose();
	}

	this.dataBindingContext = new DataBindingContext();

	/** TreeViewer selection observable */
	IViewerObservableValue treeViewerSelectionObservableValue = ViewerProperties.singleSelection()
	.observe(this.treeViewer);
	/** Button enable observable */
	ISWTObservableValue deleteButtonEnableObservableValue = WidgetProperties.enabled().observe(this.deleteButton);

	this.dataBindingContext.bindValue(deleteButtonEnableObservableValue, treeViewerSelectionObservableValue,
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
	.setConverter(new Converter(Object.class, boolean.class) {

	@Override
	public Object convert(Object fromObject) {
	return fromObject != null;
	}
	}));

	}

	/**
	* Label provider for the tree viewer.
	*/
	// TODO add other UnitsProvidersTypes if new are created.
	private class UnitsProvidersLabelProvider extends AdapterFactoryLabelProvider {

	public UnitsProvidersLabelProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	private static final int TYPED_ELEMENT_COLUMN_ID = 0;
	private static final int UNITS_COLUMN_ID = 1;

	@Override
	public String getColumnText(Object object, int columnIndex) {
	if (object instanceof Entry) {
	@SuppressWarnings("unchecked")
	Entry<ETypedElement, UnitsProvider> entry = (Entry<ETypedElement, UnitsProvider>) object;
	switch (columnIndex) {
	case TYPED_ELEMENT_COLUMN_ID:
	/** Typed element name */

	// Return the fully qualified name of the type element.

	return getString(entry.getKey());

	case UNITS_COLUMN_ID:
	/** UnitsProvider itemProvider .toString() */
	return entry.getValue() instanceof EOperationEParametersUnitsProvider ? ""
	: super.getColumnText(entry.getValue(), columnIndex);
	default:
	}
	}

	if (object instanceof EParameter) {
	EParameter param = (EParameter) object;
	switch (columnIndex) {
	case TYPED_ELEMENT_COLUMN_ID:
	return param.getName();
	case UNITS_COLUMN_ID:
	EOperationEParametersUnitsProviderParameters params = ApogyCommonEMFUIFactory.eINSTANCE
	.createEOperationEParametersUnitsProviderParameters();
	params.setParam(param);
	return ApogyCommonEMFUIFacade.INSTANCE.getDisplayUnits(param.getEOperation(), params).toString();
	default:
	}
	}
	return super.getColumnText(object, columnIndex);
	}

	@Override
	public Image getColumnImage(Object object, int columnIndex) {
	return null;
	}

	private String getString(final ETypedElement element) {
	EObject currentETypedElement = element;
	String string = null;

	while (currentETypedElement != null) {
	if (currentETypedElement instanceof EStructuralFeature) {
	EStructuralFeature eStructuralFeature = (EStructuralFeature) currentETypedElement;

	if (string != null)
	string = eStructuralFeature.getName() + "." + string;
	else
	string = eStructuralFeature.getName();

	currentETypedElement = eStructuralFeature.eContainer();
	} else if (currentETypedElement instanceof EAttribute) {
	EAttribute eAttribute = (EAttribute) currentETypedElement;
	if (string != null)
	string = eAttribute.getName() + "." + string;
	else
	string = eAttribute.getName();

	currentETypedElement = eAttribute.eContainer();
	} else if (currentETypedElement instanceof EClass) {
	EClass eClass = (EClass) currentETypedElement;

	if (string != null)
	string = eClass.getName() + "." + string;
	else
	string = eClass.getName();

	currentETypedElement = eClass.eContainer();
	} else {
	currentETypedElement = null;
	}
	}
	return string;
	}
	}

	/**
	* Content provider for the native units list tree.
	*/
	// TODO add other UnitsProvider types if new are created.
	private class UnitsProvidersContentProvider extends AdapterFactoryContentProvider {

	public UnitsProvidersContentProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	@Override
	public Object[] getChildren(Object object) {
	if (object instanceof ETypedElementToUnitsKeyValueImpl) {
	ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) object;

	return ((EOperationEParametersUnitsProvider) entry.getValue()).getMap().getEntries().keySet().toArray();
	}
	return null;
	}

	@Override
	public boolean hasChildren(Object object) {
	if (object instanceof ETypedElementToUnitsKeyValueImpl) {
	ETypedElementToUnitsKeyValueImpl entry = (ETypedElementToUnitsKeyValueImpl) object;

	return entry.getValue() instanceof EOperationEParametersUnitsProvider;
	}
	return false;
	}

	}

	}