Java tutorial
/******************************************************************************* * Copyright (c) 2008, 2011 Obeo. * 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: * Obeo - initial API and implementation *******************************************************************************/ package org.eclipse.emf.eef.runtime.ui.widgets; import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.List; import org.eclipse.emf.common.notify.AdapterFactory; import org.eclipse.emf.common.notify.impl.AdapterFactoryImpl; import org.eclipse.emf.common.ui.celleditor.ExtendedComboBoxCellEditor; import org.eclipse.emf.common.util.BasicEList; import org.eclipse.emf.common.util.EList; import org.eclipse.emf.ecore.EClassifier; import org.eclipse.emf.ecore.EDataType; import org.eclipse.emf.ecore.util.EcoreUtil; import org.eclipse.emf.edit.provider.ComposedAdapterFactory; import org.eclipse.emf.edit.provider.ItemProvider; import org.eclipse.emf.edit.ui.EMFEditUIPlugin; import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider; import org.eclipse.emf.eef.runtime.impl.filters.business.BusinessViewerFilter; import org.eclipse.emf.eef.runtime.ui.utils.EEFRuntimeUIMessages; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IContentProvider; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.Text; /** * @author <a href="mailto:goulwen.lefur@obeo.fr">Goulwen Le Fur</a> */ public class EEFFeatureEditorDialog extends Dialog { protected ILabelProvider labelProvider; protected IContentProvider contentProvider; protected Object object; protected EClassifier eClassifier; protected String displayName; protected ItemProvider values; protected List<?> choiceOfValues; protected EList<?> result; protected boolean multiLine; /** * List of static filters */ private List<ViewerFilter> filters; /** * List of business filters */ private List<ViewerFilter> brFilters; public EEFFeatureEditorDialog(Shell parent, String displayName, ILabelProvider labelProvider, List<?> currentValues, List<?> choiceOfValues, boolean multiLine, boolean sortChoices, List<ViewerFilter> filters, List<ViewerFilter> brFilters) { super(parent); setShellStyle(getShellStyle() | SWT.RESIZE | SWT.MAX); this.labelProvider = labelProvider; this.displayName = displayName; this.choiceOfValues = choiceOfValues; this.multiLine = multiLine; this.filters = filters; this.brFilters = brFilters; AdapterFactory adapterFactory = new ComposedAdapterFactory(Collections.<AdapterFactory>emptyList()); values = new ItemProvider(adapterFactory, currentValues); contentProvider = new AdapterFactoryContentProvider(adapterFactory); if (sortChoices && choiceOfValues != null) { this.choiceOfValues = new ArrayList<Object>(choiceOfValues); ExtendedComboBoxCellEditor.createItems(this.choiceOfValues, labelProvider, true); } } public EEFFeatureEditorDialog(Shell parent, String displayName, ILabelProvider labelProvider, List<?> currentValues, EClassifier eClassifier, List<?> choiceOfValues, boolean multiLine, boolean sortChoices, List<ViewerFilter> filters, List<ViewerFilter> brFilters) { this(parent, displayName, labelProvider, currentValues, choiceOfValues, multiLine, sortChoices, filters, brFilters); this.eClassifier = eClassifier; } @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText( EMFEditUIPlugin.INSTANCE.getString("_UI_FeatureEditorDialog_title", new Object[] { displayName, //$NON-NLS-1$ labelProvider.getText(object) })); shell.setImage(labelProvider.getImage(object)); } @Override protected Control createDialogArea(Composite parent) { Composite contents = (Composite) super.createDialogArea(parent); GridLayout contentsGridLayout = (GridLayout) contents.getLayout(); contentsGridLayout.numColumns = 3; GridData contentsGridData = (GridData) contents.getLayoutData(); contentsGridData.horizontalAlignment = SWT.FILL; contentsGridData.verticalAlignment = SWT.FILL; Composite choiceComposite = new Composite(contents, SWT.NONE); { GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); data.horizontalAlignment = SWT.END; choiceComposite.setLayoutData(data); GridLayout layout = new GridLayout(); data.horizontalAlignment = SWT.FILL; layout.marginHeight = 0; layout.marginWidth = 0; layout.numColumns = 1; choiceComposite.setLayout(layout); } Label choiceLabel = new Label(choiceComposite, SWT.NONE); choiceLabel.setText(choiceOfValues == null ? EMFEditUIPlugin.INSTANCE.getString("_UI_Value_label") //$NON-NLS-1$ : EMFEditUIPlugin.INSTANCE.getString("_UI_Choices_label")); //$NON-NLS-1$ GridData choiceLabelGridData = new GridData(); choiceLabelGridData.verticalAlignment = SWT.FILL; choiceLabelGridData.horizontalAlignment = SWT.FILL; choiceLabel.setLayoutData(choiceLabelGridData); final Table choiceTable = choiceOfValues == null ? null : new Table(choiceComposite, SWT.MULTI | SWT.BORDER); if (choiceTable != null) { GridData choiceTableGridData = new GridData(); choiceTableGridData.widthHint = Display.getCurrent().getBounds().width / 5; choiceTableGridData.heightHint = Display.getCurrent().getBounds().height / 3; choiceTableGridData.verticalAlignment = SWT.FILL; choiceTableGridData.horizontalAlignment = SWT.FILL; choiceTableGridData.grabExcessHorizontalSpace = true; choiceTableGridData.grabExcessVerticalSpace = true; choiceTable.setLayoutData(choiceTableGridData); } final TableViewer choiceTableViewer = choiceOfValues == null ? null : new TableViewer(choiceTable); if (choiceTableViewer != null) { choiceTableViewer.setContentProvider(new AdapterFactoryContentProvider(new AdapterFactoryImpl())); choiceTableViewer.setLabelProvider(labelProvider); choiceTableViewer.setInput(new ItemProvider(choiceOfValues)); if (filters != null) { for (ViewerFilter filter : filters) { choiceTableViewer.addFilter(filter); } } // business rules List<Button> checkButtons = new ArrayList<Button>(); if (brFilters != null && !brFilters.isEmpty()) { String currentModel = EEFRuntimeUIMessages.EEFFeatureEditorDialog_current_model_filter_title; String referencedModels = EEFRuntimeUIMessages.EEFFeatureEditorDialog_referenced_models_filter_title; String differentContainer = EEFRuntimeUIMessages.EEFFeatureEditorDialog_different_container_filter_title; for (int i = 0; i < brFilters.size(); i++) { String filterName = null; if (brFilters.get(i) instanceof BusinessViewerFilter) { final BusinessViewerFilter viewerFilter = (BusinessViewerFilter) brFilters.get(i); Button filteredContent = new Button(choiceComposite, SWT.CHECK); filterName = viewerFilter.getName(); if (filterName != null) { filteredContent.setText(filterName); } else { filteredContent.setText(EEFRuntimeUIMessages.EEFFeatureEditorDialog_filter_name); } filteredContent.setData(viewerFilter); checkButtons.add(filteredContent); } // selection "contenu filtre" if (filterName != null && !filterName.equals(currentModel) && !filterName.equals(referencedModels) && !filterName.equals(differentContainer)) { checkButtons.get(i).setSelection(true); choiceTableViewer.addFilter((ViewerFilter) checkButtons.get(i).getData()); for (int j = 0; j < choiceTable.getColumns().length; j++) { choiceTable.getColumn(j).pack(); } } } // selection listener for business rules for (final Button b : checkButtons) { b.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { if (b.getSelection() == false) { choiceTableViewer.removeFilter((ViewerFilter) b.getData()); } else { choiceTableViewer.addFilter((ViewerFilter) b.getData()); } for (int i = 0; i < choiceTable.getColumns().length; i++) { choiceTable.getColumn(i).pack(); } } }); } } } // We use multi even for a single line because we want to respond to the // enter key. // int style = multiLine ? SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER : SWT.MULTI | SWT.BORDER; final Text choiceText = choiceOfValues == null ? new Text(choiceComposite, style) : null; if (choiceText != null) { GridData choiceTextGridData = new GridData(); choiceTextGridData.widthHint = Display.getCurrent().getBounds().width / 5; choiceTextGridData.verticalAlignment = SWT.BEGINNING; choiceTextGridData.horizontalAlignment = SWT.FILL; choiceTextGridData.grabExcessHorizontalSpace = true; if (multiLine) { choiceTextGridData.verticalAlignment = SWT.FILL; choiceTextGridData.grabExcessVerticalSpace = true; } choiceText.setLayoutData(choiceTextGridData); } Composite controlButtons = new Composite(contents, SWT.NONE); GridData controlButtonsGridData = new GridData(); controlButtonsGridData.verticalAlignment = SWT.FILL; controlButtonsGridData.horizontalAlignment = SWT.FILL; controlButtons.setLayoutData(controlButtonsGridData); GridLayout controlsButtonGridLayout = new GridLayout(); controlButtons.setLayout(controlsButtonGridLayout); new Label(controlButtons, SWT.NONE); final Button addButton = new Button(controlButtons, SWT.PUSH); addButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Add_label")); //$NON-NLS-1$ GridData addButtonGridData = new GridData(); addButtonGridData.verticalAlignment = SWT.FILL; addButtonGridData.horizontalAlignment = SWT.FILL; addButton.setLayoutData(addButtonGridData); final Button removeButton = new Button(controlButtons, SWT.PUSH); removeButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Remove_label")); //$NON-NLS-1$ GridData removeButtonGridData = new GridData(); removeButtonGridData.verticalAlignment = SWT.FILL; removeButtonGridData.horizontalAlignment = SWT.FILL; removeButton.setLayoutData(removeButtonGridData); Label spaceLabel = new Label(controlButtons, SWT.NONE); GridData spaceLabelGridData = new GridData(); spaceLabelGridData.verticalSpan = 2; spaceLabel.setLayoutData(spaceLabelGridData); final Button upButton = new Button(controlButtons, SWT.PUSH); upButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Up_label")); //$NON-NLS-1$ GridData upButtonGridData = new GridData(); upButtonGridData.verticalAlignment = SWT.FILL; upButtonGridData.horizontalAlignment = SWT.FILL; upButton.setLayoutData(upButtonGridData); final Button downButton = new Button(controlButtons, SWT.PUSH); downButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Down_label")); //$NON-NLS-1$ GridData downButtonGridData = new GridData(); downButtonGridData.verticalAlignment = SWT.FILL; downButtonGridData.horizontalAlignment = SWT.FILL; downButton.setLayoutData(downButtonGridData); Composite featureComposite = new Composite(contents, SWT.NONE); { GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); data.horizontalAlignment = SWT.END; featureComposite.setLayoutData(data); GridLayout layout = new GridLayout(); data.horizontalAlignment = SWT.FILL; layout.marginHeight = 0; layout.marginWidth = 0; layout.numColumns = 1; featureComposite.setLayout(layout); } Label featureLabel = new Label(featureComposite, SWT.NONE); featureLabel.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Feature_label")); //$NON-NLS-1$ GridData featureLabelGridData = new GridData(); featureLabelGridData.horizontalSpan = 2; featureLabelGridData.horizontalAlignment = SWT.FILL; featureLabelGridData.verticalAlignment = SWT.FILL; featureLabel.setLayoutData(featureLabelGridData); final Table featureTable = new Table(featureComposite, SWT.MULTI | SWT.BORDER); GridData featureTableGridData = new GridData(); featureTableGridData.widthHint = Display.getCurrent().getBounds().width / 5; featureTableGridData.heightHint = Display.getCurrent().getBounds().height / 3; featureTableGridData.verticalAlignment = SWT.FILL; featureTableGridData.horizontalAlignment = SWT.FILL; featureTableGridData.grabExcessHorizontalSpace = true; featureTableGridData.grabExcessVerticalSpace = true; featureTable.setLayoutData(featureTableGridData); final TableViewer featureTableViewer = new TableViewer(featureTable); featureTableViewer.setContentProvider(contentProvider); featureTableViewer.setLabelProvider(labelProvider); featureTableViewer.setInput(values); if (!values.getChildren().isEmpty()) { featureTableViewer.setSelection(new StructuredSelection(values.getChildren().get(0))); } if (choiceTableViewer != null) { choiceTableViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { if (addButton.isEnabled()) { addButton.notifyListeners(SWT.Selection, null); } } }); featureTableViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { if (removeButton.isEnabled()) { removeButton.notifyListeners(SWT.Selection, null); } } }); } if (choiceText != null) { choiceText.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent event) { if (!multiLine && (event.character == '\r' || event.character == '\n')) { try { Object value = EcoreUtil.createFromString((EDataType) eClassifier, choiceText.getText()); values.getChildren().add(value); choiceText.setText(""); //$NON-NLS-1$ featureTableViewer.setSelection(new StructuredSelection(value)); event.doit = false; } catch (RuntimeException exception) { // Ignore } } else if (event.character == '\33') { choiceText.setText(""); //$NON-NLS-1$ event.doit = false; } } }); } upButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTableViewer.getSelection(); int minIndex = 0; for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); int index = values.getChildren().indexOf(value); values.getChildren().move(Math.max(index - 1, minIndex++), value); } } }); downButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTableViewer.getSelection(); int maxIndex = values.getChildren().size() - selection.size(); for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); int index = values.getChildren().indexOf(value); values.getChildren().move(Math.min(index + 1, maxIndex++), value); } } }); addButton.addSelectionListener(new SelectionAdapter() { // event is null when choiceTableViewer is double clicked @Override public void widgetSelected(SelectionEvent event) { if (choiceTableViewer != null) { IStructuredSelection selection = (IStructuredSelection) choiceTableViewer.getSelection(); for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (!values.getChildren().contains(value)) { values.getChildren().add(value); } } featureTableViewer.setSelection(selection); } else if (choiceText != null) { try { Object value = EcoreUtil.createFromString((EDataType) eClassifier, choiceText.getText()); values.getChildren().add(value); choiceText.setText(""); //$NON-NLS-1$ featureTableViewer.setSelection(new StructuredSelection(value)); } catch (RuntimeException exception) { // Ignore } } } }); removeButton.addSelectionListener(new SelectionAdapter() { // event is null when featureTableViewer is double clicked @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTableViewer.getSelection(); Object firstValue = null; for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (firstValue == null) { firstValue = value; } values.getChildren().remove(value); } if (!values.getChildren().isEmpty()) { featureTableViewer.setSelection(new StructuredSelection(values.getChildren().get(0))); } if (choiceTableViewer != null) { choiceTableViewer.setSelection(selection); } else if (choiceText != null) { if (firstValue != null) { String value = EcoreUtil.convertToString((EDataType) eClassifier, firstValue); choiceText.setText(value); } } } }); return contents; } @Override protected void okPressed() { result = new BasicEList<Object>(values.getChildren()); super.okPressed(); } @Override public boolean close() { contentProvider.dispose(); return super.close(); } public EList<?> getResult() { return result; } }