diff options
Diffstat (limited to 'plugins/infra/viewpoints/org.eclipse.papyrus.infra.viewpoints.configuration/custom-src/org/eclipse/papyrus/infra/viewpoints/configuration/ui/ModelElementSelectionDialog.java')
| -rwxr-xr-x | plugins/infra/viewpoints/org.eclipse.papyrus.infra.viewpoints.configuration/custom-src/org/eclipse/papyrus/infra/viewpoints/configuration/ui/ModelElementSelectionDialog.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/plugins/infra/viewpoints/org.eclipse.papyrus.infra.viewpoints.configuration/custom-src/org/eclipse/papyrus/infra/viewpoints/configuration/ui/ModelElementSelectionDialog.java b/plugins/infra/viewpoints/org.eclipse.papyrus.infra.viewpoints.configuration/custom-src/org/eclipse/papyrus/infra/viewpoints/configuration/ui/ModelElementSelectionDialog.java new file mode 100755 index 00000000000..3020ec1a5b0 --- /dev/null +++ b/plugins/infra/viewpoints/org.eclipse.papyrus.infra.viewpoints.configuration/custom-src/org/eclipse/papyrus/infra/viewpoints/configuration/ui/ModelElementSelectionDialog.java @@ -0,0 +1,222 @@ +/*****************************************************************************
+ * Copyright (c) 2013 CEA LIST.
+ *
+ *
+ * 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:
+ * Laurent Wouters laurent.wouters@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.viewpoints.configuration.ui;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.NoSuchElementException;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.viewers.ILabelProvider;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.papyrus.infra.core.services.ServiceException;
+import org.eclipse.papyrus.infra.core.services.ServicesRegistry;
+import org.eclipse.papyrus.infra.services.labelprovider.service.LabelProviderService;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Shell;
+
+/**
+ * Represents a dialog for the selection of a model element
+ * @author Laurent Wouters
+ */
+public class ModelElementSelectionDialog extends Dialog {
+ private static final int SIZE_WIDTH = 400;
+ private static final int SIZE_HEIGHT = 300;
+
+ private static final String MSG_TITLE = "Model element selection";
+ private static final String MSG_EMPTYSELECTION = "Select an element";
+
+ private ServicesRegistry registry;
+ private EObject root;
+ private EObject selection;
+ private IModelElementValidator validator;
+ private Label notification;
+ private String message;
+
+ private static class AtomSelection implements IStructuredSelection {
+ private Object element;
+ public AtomSelection(Object element) {
+ this.element = element;
+ }
+ public boolean isEmpty() {
+ return (element == null);
+ }
+ public Object getFirstElement() {
+ return element;
+ }
+ public Iterator iterator() {
+ return new Iterator() {
+ private boolean done = false;
+ public boolean hasNext() {
+ return (!done);
+ }
+ public Object next() {
+ if (done)
+ throw new NoSuchElementException();
+ done = true;
+ return element;
+ }
+ public void remove() { }
+ };
+ }
+ public int size() {
+ return ((element != null) ? 1 : 0);
+ }
+ public Object[] toArray() {
+ if (element == null)
+ return new Object[0];
+ return new Object[] { element };
+ }
+ public List toList() {
+ List<Object> list = new ArrayList<Object>(1);
+ if (element != null)
+ list.add(element);
+ return list;
+ }
+ }
+
+
+ public EObject getSelection() {
+ return selection;
+ }
+
+ public ModelElementSelectionDialog(Shell parentShell, ServicesRegistry registry, String message, EObject root, EObject current, IModelElementValidator validator) {
+ super(parentShell);
+ this.registry = registry;
+ this.root = root;
+ this.selection = current;
+ this.validator = validator;
+ this.message = message;
+ }
+
+ @Override
+ protected Control createDialogArea(Composite parent) {
+ // create composite
+ Composite composite = (Composite) super.createDialogArea(parent);
+ GridLayout gridLayout = new GridLayout();
+ gridLayout.numColumns = 1;
+ composite.setLayout(gridLayout);
+
+ Label label = new Label(composite, SWT.WRAP | SWT.SINGLE);
+ label.setText(message);
+ label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
+
+ Composite inner = new Composite(composite, SWT.NONE);
+ inner.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL | GridData.FILL_VERTICAL));
+ inner.setLayout(new FillLayout());
+
+ TreeViewer tree = new TreeViewer(inner, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
+ tree.setLabelProvider(getLabelProvider());
+ tree.setContentProvider(new ECoreModelContentProvider(root));
+ tree.setInput(ECoreModelContentProvider.ROOT);
+ if (selection != null) {
+ tree.reveal(selection);
+ tree.setSelection(new AtomSelection(selection));
+ }
+ tree.addSelectionChangedListener(new ISelectionChangedListener() {
+ public void selectionChanged(SelectionChangedEvent event) {
+ IStructuredSelection s = (IStructuredSelection)event.getSelection();
+ Object first = s.getFirstElement();
+ if (first == null)
+ onSelection(null);
+ else if (first instanceof EObject)
+ onSelection((EObject)first);
+ else
+ onSelection(null);
+ }
+ });
+
+ notification = new Label(composite, SWT.WRAP | SWT.SINGLE);
+ notification.setForeground(new Color(composite.getDisplay(), 255, 0, 0));
+ notification.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
+ if (selection == null)
+ notification.setText(MSG_EMPTYSELECTION);
+ else {
+ String msg = validator.isSelectable(selection);
+ if (msg == null)
+ notification.setText("");
+ else
+ notification.setText(msg);
+ }
+
+ applyDialogFont(composite);
+ return composite;
+ }
+
+ @Override
+ protected Control createButtonBar(Composite parent) {
+ Control composite = super.createButtonBar(parent);
+ if (selection == null)
+ getButton(IDialogConstants.OK_ID).setEnabled(false);
+ else {
+ String msg = validator.isSelectable(selection);
+ if (msg == null)
+ getButton(IDialogConstants.OK_ID).setEnabled(true);
+ else
+ getButton(IDialogConstants.OK_ID).setEnabled(false);
+ }
+ return composite;
+ }
+
+
+ private void onSelection(EObject element) {
+ selection = element;
+ if (selection == null) {
+ notification.setText(MSG_EMPTYSELECTION);
+ getButton(IDialogConstants.OK_ID).setEnabled(false);
+ } else {
+ String msg = validator.isSelectable(selection);
+ if (msg == null) {
+ notification.setText("");
+ getButton(IDialogConstants.OK_ID).setEnabled(true);
+ } else {
+ notification.setText(msg);
+ getButton(IDialogConstants.OK_ID).setEnabled(false);
+ }
+ }
+ }
+
+ @Override
+ protected void configureShell(Shell shell) {
+ super.configureShell(shell);
+ shell.setSize(SIZE_WIDTH, SIZE_HEIGHT);
+ Point size = shell.getParent().getShell().getSize();
+ shell.setLocation((size.x - SIZE_WIDTH)/2, (size.y - SIZE_HEIGHT)/2);
+ shell.setText(MSG_TITLE);
+ }
+
+ private ILabelProvider getLabelProvider() {
+ try {
+ LabelProviderService service = registry.getService(LabelProviderService.class);
+ if (service != null)
+ return service.getLabelProvider();
+ }
+ catch (ServiceException e) { }
+ return null;
+ }
+}
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