Merge pull request #470 from eclipse/bugfix/Issue_454_MultiChoice_Wid…

…get_adding_Select_all_as_an_entry

Bug #454 - MultiChoice Widget adding Select all as an entry

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/ResourceManager.java

@@ -70,9 +70,12 @@ public class ResourceManager {
 
 	public static final String MULTICHOICE_MESSAGE = "multichoice.message";
 	public static final String MULTICHOICE_MESSAGE_PLURAL = "multichoice.message.plural";
-	
+
 	public static final String APPLY = "apply";
 
+	public static final String SELECT_ALL = "selectAll";
+	public static final String DESELECT_ALL = "deselectAll";
+
 	/**
 	 * Get a translated label
 	 *

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Apply
+apply=Apply
+selectAll=Select All
+deselectAll=Deselect All

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_de_DE.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Anwenden
+apply=Anwenden
+selectAll=Wählen Sie Alle
+deselectAll=Alle abwählen

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_es_ES.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Aplicar
+apply=Aplicar
+selectAll=Seleccionar todo
+deselectAll=Deseleccionar todo

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_fr_FR.properties

@@ -3,17 +3,17 @@ Cancel=Annuler
 Close=Fermer
 Yes=Oui
 No=Non
-MoreDetails=Plus de détails
-FewerDetails=Moins de détails
-Details=Détails
+MoreDetails=Plus de d\u00e9tails
+FewerDetails=Moins de d\u00e9tails
+Details=D\u00e9tails
 Information=Information
 Error=Erreur
 Question=Question
 Warning=Avertissement
 Exception=Exception
 Choice=Choix
-Select=Sélection
-Input=Entrée
+Select=S\u00e9lection
+Input=Entr\u00e9e
 ApplicationError=Erreur applicative
 megabytes=Mo
 performGC=Lancer le ramasse-miettes (GC)
@@ -24,36 +24,38 @@ rememberPassword=Se souvenir de mon mot de passe
 loginFailed=Echec de l'authentification
 tipOfTheDay=Astuce du jour
 didYouKnow=Le savez-vous ?
-showTipAtStartup=Afficher les astuces au démarrage
-previousTip=< Astuce précédente
+showTipAtStartup=Afficher les astuces au d\u00e9marrage
+previousTip=< Astuce pr\u00e9c\u00e9dente
 nextTip=Astuce suivante >
 choose=Choisir
-preferences=Préférences
+preferences=Pr\u00e9f\u00e9rences
 validURL=Merci de saisir une URL valide s'il vous plait
-chooseDirectory=Veuillez choisir un répertoire
+chooseDirectory=Veuillez choisir un r\u00e9pertoire
 bold=gras
 italic=italique
 category.shortDescription = Alterner entre vue par Cat\u00e9gorie et liste
 description.shortDescription = Afficher/Cacher le panneau de Description
 sort.shortDescription = Trier les Propri\u00e9t\u00e9s et Cat\u00e9gories par Nom
-property=Propriété
+property=Propri\u00e9t\u00e9
 value=Valeur
-editProperty=Edition de la valeur de la propriété
+editProperty=Edition de la valeur de la propri\u00e9t\u00e9
 width=Largeur
 height=Hauteur
 top=Haut
 bottom=Bas
 left=Gauche
 right=Droite
-eraseProperty=Efface la valeur de cette propriété
-physicalMemory=Mémoire physique
-heapMemory=Mémoire Heap
+eraseProperty=Efface la valeur de cette propri\u00e9t\u00e9
+physicalMemory=M\u00e9moire physique
+heapMemory=M\u00e9moire Heap
 threads=Threads
 cpuUsage=Utilisation CPU
 peak=Max
 mb=Mo
-calculator.dividebyzero=Division par zéro impossible !
-calculator.invalid=Entrée invalide pour cette fonction !
-multichoice.message=L'entrée %s n'est pas valide, merci de la v\u00e9rifier !
+calculator.dividebyzero=Division par z\u00e9ro impossible !
+calculator.invalid=Entr\u00e9e invalide pour cette fonction !
+multichoice.message=L'entr\u00e9e %s n'est pas valide, merci de la v\u00e9rifier !
 multichoice.message.plural=Les entr\u00e9es %s ne sont pas valides, merci de les v\u00e9rifier!
-apply=Appliquer
+apply=Appliquer
+selectAll=Tout s\u00e9lectionner
+deselectAll=Tout d\u00e9selectionner

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_it_IT.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Applicare
+apply=Applicare
+selectAll=Seleziona tutto
+deselectAll=Deselezionare tutto

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_nl_NL.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Van toepassing zijn
+apply=Van toepassing zijn
+selectAll=Selecteer alles
+deselectAll=Deselecteer alles

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_pl_PL.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Nie można dzielić przez zero !
 calculator.invalid=Nieprawidłowe parametry funkcji !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Zastosować
+apply=Zastosować
+selectAll=Zaznacz wszystko
+deselectAll=Odznacz wszystkie

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_pt_BR.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=Aplique
+apply=Aplique
+selectAll=Selecionar tudo
+deselectAll=Desmarcar todos	

widgets/opal/commons/org.eclipse.nebula.widgets.opal.commons/src/org/eclipse/nebula/widgets/opal/commons/resources/opal_zh_CN.properties

@@ -56,4 +56,6 @@ calculator.dividebyzero=Cannot divide by zero !
 calculator.invalid=Invalid input for function !
 multichoice.message=The entry %s is invalid, please check it!
 multichoice.message.plural=The entries %s are invalid, please check it!
-apply=\u5E94\u7528
+apply=\u5E94\u7528
+selectAll=\u5168\u9009
+deselectAll=\u53D6\u6D88\u5168\u9009

widgets/opal/multichoice/org.eclipse.nebula.widgets.opal.multichoice.snippets/src/org/eclipse/nebula/widgets/opal/multichoice/snippets/MultiChoiceSnippet.java

@@ -16,7 +16,6 @@
 import java.util.List;
 
 import org.eclipse.nebula.widgets.opal.multichoice.MultiChoice;
-import org.eclipse.nebula.widgets.opal.multichoice.MultiChoiceLabelProvider;
 import org.eclipse.nebula.widgets.opal.multichoice.MultiChoiceSelectionListener;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
@@ -95,6 +94,16 @@ public static void main(final String[] args) {
 		mcSimple.addAll(euroZone);
 		addButons(mcSimple);
 
+		drawLabel(shell, "Simple Multichoice with select/deselect all links:");
+		final MultiChoice<String> mcSelectDeselectAll = new MultiChoice<>(shell, SWT.READ_ONLY);
+		mcSelectDeselectAll.setEditable(false);
+		mcSelectDeselectAll.setShowSelectUnselectAll(true);
+		final GridData gridDataSelectDeselectAll = new GridData(GridData.FILL, GridData.BEGINNING, true, true);
+		gridDataSelectDeselectAll.widthHint = 200;
+		mcSelectDeselectAll.setLayoutData(gridDataSelectDeselectAll);
+		mcSelectDeselectAll.addAll(euroZone);
+		addButons(mcSelectDeselectAll);
+
 		drawLabel(shell, "Multichoice with beans :");
 		final MultiChoice<Country> mcBeans = new MultiChoice<>(shell, SWT.READ_ONLY);
 		mcBeans.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, true, true));
@@ -157,14 +166,11 @@ public void handle(final MultiChoice<Country> parent, final Country receiver, fi
 		}
 		final MultiChoice<String> mcLotOfData = new MultiChoice<>(shell, SWT.NONE);
 		mcLotOfData.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, true, true));
-		mcLotOfData.setLabelProvider(new MultiChoiceLabelProvider() {
-			@Override
-			public String getText(final Object element) {
-				if (element == null) {
-					return "";
-				}
-				return (String) element;
+		mcLotOfData.setLabelProvider(element -> {
+			if (element == null) {
+				return "";
 			}
+			return (String) element;
 		});
 		mcLotOfData.addAll(data);
 		addButons(mcLotOfData);
@@ -177,8 +183,8 @@ public String getText(final Object element) {
 		mcNotEditable.addAll(euroZone);
 		mcNotEditable.setEditable(false);
 		addButons(mcNotEditable);
-		
-		
+
+
 		drawLabel(shell, "Not Enabled Multichoice :");
 		final MultiChoice<String> mcNotEnabled = new MultiChoice<>(shell, SWT.READ_ONLY);
 		final GridData gridDataNotEnabled = new GridData(GridData.FILL, GridData.BEGINNING, true, true);

widgets/opal/multichoice/org.eclipse.nebula.widgets.opal.multichoice/src/org/eclipse/nebula/widgets/opal/multichoice/MultiChoice.java

@@ -37,6 +37,7 @@
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Link;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.MessageBox;
 import org.eclipse.swt.widgets.Shell;
@@ -78,6 +79,7 @@ public class MultiChoice<T> extends Composite {
 	private String separator;
 	private MultiChoiceLabelProvider labelProvider;
 	private int preferredHeightOfPopup;
+	private boolean showSelectUnselectAll;
 
 	/**
 	 * Constructs a new instance of this class given its parent.
@@ -176,14 +178,11 @@ private void createGlobalListener() {
 			}
 
 			if (getShell() == event.widget) {
-				getDisplay().asyncExec(new Runnable() {
-					@Override
-					public void run() {
-						if (isDisposed()) {
-							return;
-						}
-						handleFocusEvents(SWT.FocusOut);
+				getDisplay().asyncExec(() -> {
+					if (isDisposed()) {
+						return;
 					}
+					handleFocusEvents(SWT.FocusOut);
 				});
 			}
 		};
@@ -1022,8 +1021,7 @@ public void updateSelection() {
 			return;
 		}
 
-		for (int i = 0; i < this.checkboxes.size(); i++) {
-			final Button currentButton = this.checkboxes.get(i);
+		for (final Button currentButton : this.checkboxes) {
 			if (!currentButton.isDisposed()) {
 				final Object content = currentButton.getData();
 				currentButton.setSelection(this.selection.contains(content));
@@ -1051,7 +1049,18 @@ Shell getPopup() {
 	 */
 	private void createPopup() {
 		this.popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);
-		this.popup.setLayout(new FillLayout());
+
+		Composite parent;
+		if (showSelectUnselectAll) {
+			popup.setLayout(new FillLayout());
+			parent = new Composite(popup, SWT.BORDER);
+		} else {
+			parent = popup;
+		}
+		final GridLayout gridLayout = new GridLayout(2, true);
+		gridLayout.marginWidth = gridLayout.marginHeight = gridLayout.horizontalSpacing = 0;
+		gridLayout.verticalSpacing = 10;
+		parent.setLayout(gridLayout);
 
 		final int[] popupEvents = { SWT.Close, SWT.Deactivate, SWT.Dispose };
 		for (final int popupEvent : popupEvents) {
@@ -1062,7 +1071,24 @@ private void createPopup() {
 			return;
 		}
 
-		this.scrolledComposite = new ScrolledComposite(this.popup, SWT.BORDER | SWT.V_SCROLL);
+		if (showSelectUnselectAll) {
+			final Link selectAllLink = new Link(parent, SWT.NONE);
+			selectAllLink.setLayoutData(new GridData(GridData.CENTER, GridData.CENTER, false, false));
+			selectAllLink.setText("<a>" + ResourceManager.getLabel(ResourceManager.SELECT_ALL) + "</a>");
+			selectAllLink.addListener(SWT.Selection, e -> {
+				changeButtonState(true);
+			});
+
+			final Link deselectAllLink = new Link(parent, SWT.NONE);
+			deselectAllLink.setLayoutData(new GridData(GridData.CENTER, GridData.CENTER, false, false));
+			deselectAllLink.setText("<a>" + ResourceManager.getLabel(ResourceManager.DESELECT_ALL) + "</a>");
+			deselectAllLink.addListener(SWT.Selection, e -> {
+				changeButtonState(false);
+			});
+		}
+
+		this.scrolledComposite = new ScrolledComposite(parent, SWT.V_SCROLL | (showSelectUnselectAll ? SWT.NONE : SWT.BORDER));
+		this.scrolledComposite.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true, 2, 1));
 		final Composite content = new Composite(this.scrolledComposite, SWT.NONE);
 		content.setLayout(new GridLayout(this.numberOfColumns, true));
 
@@ -1107,6 +1133,12 @@ private void createPopup() {
 		this.preferredHeightOfPopup = content.getSize().y;
 	}
 
+	private void changeButtonState(final boolean checked) {
+		for (final Button checkBoxButton : checkboxes) {
+			checkBoxButton.setSelection(checked);
+		}
+	}
+
 	/**
 	 * Set the value of the label, based on the selected items
 	 */
@@ -1374,4 +1406,25 @@ public String getText() {
 		checkNullElement();
 		return text.getText();
 	}
+
+	/**
+	 * @return <code>true</code> if the hyperlinks "Select all" and "Deselect all" are displayted
+	 */
+	public boolean isShowSelectUnselectAll() {
+		checkWidget();
+		return showSelectUnselectAll;
+	}
+
+	/**
+	 * @param showSelectUnselectAll set to "true" to display the hyperlinks "Select all" and "Deselect all"
+	 */
+	public void setShowSelectUnselectAll(final boolean showSelectUnselectAll) {
+		checkWidget();
+		this.showSelectUnselectAll = showSelectUnselectAll;
+		if (popup != null && !popup.isDisposed()) {
+			popup.dispose();
+		}
+		createPopup();
+	}
+
 }