Java tutorial
/******************************************************************************* * Copyright (c) 2013 AtoS * 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: * Tristan Faure (AtoS) - initial API and implementation and/or initial documentation *******************************************************************************/ package org.polarsys.reqcycle.jdt.traceability.preferences; import java.util.Map; import java.util.Map.Entry; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.ImageRegistry; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.polarsys.reqcycle.jdt.traceability.Activator; import org.polarsys.reqcycle.jdt.traceability.JDTPreferences; import org.polarsys.reqcycle.traceability.model.TType; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.FillLayout; 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.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; public class JDTAnnotationPreferencePage extends PreferencePage implements IWorkbenchPreferencePage { private Table table; private Map<String, TType> preferences; private TableViewer tableViewer; private static final String IMAGE_PATH = "/icons/annot.gif"; private static final String IMAGE_KEY = Activator.PLUGIN_ID + "/icons/annot.gif"; public JDTAnnotationPreferencePage() { super(); } /** * @wbp.parser.constructor */ public JDTAnnotationPreferencePage(String title, ImageDescriptor image) { super(title, image); } @Override public void init(IWorkbench workbench) { } @Override protected Control createContents(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); composite.setLayout(new GridLayout(2, false)); Composite composite_1 = new Composite(composite, SWT.NONE); composite_1.setLayout(new FillLayout(SWT.HORIZONTAL)); composite_1.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); tableViewer = new TableViewer(composite_1, SWT.BORDER | SWT.FULL_SELECTION); tableViewer.setUseHashlookup(true); table = tableViewer.getTable(); table.setLinesVisible(true); table.setHeaderVisible(true); TableViewerColumn tableViewerColumn = new TableViewerColumn(tableViewer, SWT.NONE); TableColumn tblclmnAnnotation = tableViewerColumn.getColumn(); tblclmnAnnotation.setWidth(100); tblclmnAnnotation.setText("Annotation"); TableViewerColumn tableViewerColumn_1 = new TableViewerColumn(tableViewer, SWT.NONE); TableColumn tblclmnKind = tableViewerColumn_1.getColumn(); tblclmnKind.setWidth(100); tblclmnKind.setText("Kind"); Composite composite_2 = new Composite(composite, SWT.NONE); composite_2.setLayout(new FillLayout(SWT.VERTICAL)); composite_2.setLayoutData(new GridData(SWT.RIGHT, SWT.TOP, false, true, 1, 1)); Button btnAdd = new Button(composite_2, SWT.NONE); btnAdd.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { NewAnnotDialog dialog = new NewAnnotDialog(getShell()); if (dialog.open() == NewAnnotDialog.OK) { preferences.put(dialog.getAnnotName(), dialog.getLink()); tableViewer.refresh(); } } }); btnAdd.setText("Add"); Button btnRemove = new Button(composite_2, SWT.NONE); btnRemove.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { IStructuredSelection selec = (IStructuredSelection) tableViewer.getSelection(); @SuppressWarnings("unchecked") Entry<String, TType> entry = (Entry<String, TType>) selec.getFirstElement(); preferences.remove(entry.getKey()); tableViewer.refresh(true); } }); btnRemove.setText("Remove"); // providers tableViewer.setLabelProvider(new ITableLabelProvider() { @Override public void removeListener(ILabelProviderListener listener) { } @Override public boolean isLabelProperty(Object element, String property) { return true; } @Override public void dispose() { } @Override public void addListener(ILabelProviderListener listener) { } @Override public String getColumnText(Object element, int columnIndex) { if (element instanceof Entry) { Entry<String, TType> entry = (Entry) element; if (columnIndex == 0) { return entry.getKey(); } else { return entry.getValue().toString(); } } return null; } @Override public Image getColumnImage(Object element, int columnIndex) { if (columnIndex == 0) { return getImageAnnot(); } return null; } }); tableViewer.setContentProvider(new IStructuredContentProvider() { @Override public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } @Override public void dispose() { } @Override public Object[] getElements(Object inputElement) { if (inputElement instanceof Map) { Map<String, TType> map = (Map<String, TType>) inputElement; return map.entrySet().toArray(); } return new Object[] {}; } }); preferences = JDTPreferences.getPreferences(); tableViewer.setInput(preferences); return parent; } protected Image getImageAnnot() { ImageRegistry imageRegistry = Activator.getDefault().getImageRegistry(); Image image = imageRegistry.get(IMAGE_KEY); if (image == null) { imageRegistry.put(IMAGE_KEY, ImageDescriptor.createFromURL(Activator.getDefault().getBundle().getEntry(IMAGE_PATH))); image = imageRegistry.get(IMAGE_KEY); } return image; } @Override public boolean performOk() { JDTPreferences.savePreferences(preferences); return super.performOk(); } }