Java tutorial
/******************************************************************************* * Copyright (c) 2008-2010 Sonatype, Inc. * 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: * Sonatype, Inc. - initial API and implementation *******************************************************************************/ package com.liferay.ide.project.ui.wizard; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.jface.resource.DeviceResourceException; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.jface.resource.ResourceManager; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.jface.window.Window; 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.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.IWorkingSet; import org.eclipse.ui.IWorkingSetManager; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.IWorkingSetSelectionDialog; /** * Copied from org.eclipse.m2e.core.ui.internal.components.WorkingSetGroup */ // TODO reconcile with WorkingSets public class WorkingSetGroup { static final List<String> WORKING_SET_IDS = Arrays.asList( // "org.eclipse.ui.resourceWorkingSetPage", "org.eclipse.jdt.ui.JavaWorkingSetPage"); //$NON-NLS-1$ //$NON-NLS-2$ ComboViewer workingsetComboViewer; Button addToWorkingSetButton; final List<IWorkingSet> workingSets; final Shell shell; public WorkingSetGroup(Composite container, List<IWorkingSet> workingSets, Shell shell) { this.workingSets = workingSets; this.shell = shell; createControl(container); } private void createControl(Composite container) { addToWorkingSetButton = new Button(container, SWT.CHECK); GridData gd_addToWorkingSetButton = new GridData(SWT.LEFT, SWT.CENTER, false, false, 3, 1); gd_addToWorkingSetButton.verticalIndent = 12; addToWorkingSetButton.setLayoutData(gd_addToWorkingSetButton); addToWorkingSetButton.setSelection(true); addToWorkingSetButton.setData("name", "addToWorkingSetButton"); //$NON-NLS-1$ //$NON-NLS-2$ addToWorkingSetButton.setText("Add project to working set"); addToWorkingSetButton.setSelection(false); final Label workingsetLabel = new Label(container, SWT.NONE); GridData gd_workingsetLabel = new GridData(); gd_workingsetLabel.horizontalIndent = 10; workingsetLabel.setLayoutData(gd_workingsetLabel); workingsetLabel.setEnabled(false); workingsetLabel.setData("name", "workingsetLabel"); //$NON-NLS-1$ //$NON-NLS-2$ workingsetLabel.setText("Working set:"); Combo workingsetCombo = new Combo(container, SWT.READ_ONLY); workingsetCombo.setEnabled(false); workingsetCombo.setData("name", "workingsetCombo"); //$NON-NLS-1$ //$NON-NLS-2$ workingsetCombo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); workingsetComboViewer = new ComboViewer(workingsetCombo); workingsetComboViewer.setContentProvider(new IStructuredContentProvider() { public Object[] getElements(Object input) { if (input instanceof IWorkingSet[]) { return (IWorkingSet[]) input; } else if (input instanceof List<?>) { return new Object[] { input }; } else if (input instanceof Set<?>) { return ((Set<?>) input).toArray(); } return new IWorkingSet[0]; } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public void dispose() { } }); workingsetComboViewer.setLabelProvider(new LabelProvider() { private ResourceManager images = new LocalResourceManager(JFaceResources.getResources()); @SuppressWarnings("deprecation") public Image getImage(Object element) { if (element instanceof IWorkingSet) { ImageDescriptor imageDescriptor = ((IWorkingSet) element).getImage(); if (imageDescriptor != null) { try { return (Image) images.create(imageDescriptor); } catch (DeviceResourceException ex) { return null; } } } return super.getImage(element); } public String getText(Object element) { if (element instanceof IWorkingSet) { return ((IWorkingSet) element).getLabel(); } else if (element instanceof List<?>) { StringBuffer sb = new StringBuffer(); for (Object o : (List<?>) element) { if (o instanceof IWorkingSet) { if (sb.length() > 0) { sb.append(", "); //$NON-NLS-1$ } sb.append(((IWorkingSet) o).getLabel()); } } return sb.toString(); } return super.getText(element); } public void dispose() { images.dispose(); super.dispose(); } }); workingsetComboViewer.setComparator(new ViewerComparator()); final Button newWorkingSetButton = new Button(container, SWT.NONE); newWorkingSetButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false)); newWorkingSetButton.setData("name", "configureButton"); //$NON-NLS-1$ //$NON-NLS-2$ newWorkingSetButton.setText("More..."); newWorkingSetButton.setEnabled(false); newWorkingSetButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(final SelectionEvent e) { IWorkingSetManager workingSetManager = PlatformUI.getWorkbench().getWorkingSetManager(); IWorkingSetSelectionDialog dialog = workingSetManager.createWorkingSetSelectionDialog(shell, true, WORKING_SET_IDS.toArray(new String[0])); if (dialog.open() == Window.OK) { IWorkingSet[] workingSets = dialog.getSelection(); selectWorkingSets(Arrays.asList(workingSets)); } } }); if (selectWorkingSets(workingSets)) { addToWorkingSetButton.setSelection(true); workingsetLabel.setEnabled(true); workingsetComboViewer.getCombo().setEnabled(true); newWorkingSetButton.setEnabled(true); } addToWorkingSetButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { boolean addToWorkingingSet = addToWorkingSetButton.getSelection(); workingsetLabel.setEnabled(addToWorkingingSet); workingsetComboViewer.getCombo().setEnabled(addToWorkingingSet); newWorkingSetButton.setEnabled(addToWorkingingSet); if (addToWorkingingSet) { updateConfiguration(); } else { workingSets.clear(); } } }); workingsetComboViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { updateConfiguration(); } }); } protected void updateConfiguration() { if (addToWorkingSetButton.getSelection()) { IStructuredSelection selection = (IStructuredSelection) workingsetComboViewer.getSelection(); Object o = selection.getFirstElement(); if (o != null) { workingSets.clear(); if (o instanceof IWorkingSet) { workingSets.add((IWorkingSet) o); } else if (o instanceof List<?>) { @SuppressWarnings("unchecked") List<IWorkingSet> l = (List<IWorkingSet>) o; workingSets.addAll(l); } } } } Set<IWorkingSet> getWorkingSets() { Set<IWorkingSet> workingSets = new HashSet<IWorkingSet>(); IWorkingSetManager workingSetManager = PlatformUI.getWorkbench().getWorkingSetManager(); for (IWorkingSet workingSet : workingSetManager.getWorkingSets()) { if (!workingSet.isEmpty()) { IAdaptable[] elements = workingSet.getElements(); IResource resource = (IResource) elements[0].getAdapter(IResource.class); if (resource != null) { workingSets.add(workingSet); } } else { if (WORKING_SET_IDS.contains(workingSet.getId())) { workingSets.add(workingSet); } } } return workingSets; } public void dispose() { workingsetComboViewer.getLabelProvider().dispose(); } public boolean selectWorkingSets(List<IWorkingSet> workingSets) { Set<IWorkingSet> defaultSets = getWorkingSets(); workingsetComboViewer.setInput(defaultSets); if (workingSets != null && workingSets.size() > 0) { if (workingSets.size() == 1) { IWorkingSet workingSet = workingSets.get(0); if (defaultSets.contains(workingSet)) { workingsetComboViewer.setSelection(new StructuredSelection(workingSet)); } } else { workingsetComboViewer.add(workingSets); workingsetComboViewer.setSelection(new StructuredSelection((Object) workingSets)); } return true; } return false; } }