Java tutorial
/******************************************************************************* * Copyright (c) 2012 VMware, 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: * VMware, Inc. - initial API and implementation *******************************************************************************/ package org.codehaus.groovy.eclipse.wizards; import org.codehaus.groovy.eclipse.core.compiler.CompilerUtils; import org.codehaus.groovy.eclipse.preferences.CompilerSwitchUIHelper; import org.codehaus.groovy.frameworkadapter.util.SpecifiedVersion; import org.eclipse.core.resources.IProject; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Shell; import org.eclipse.ui.model.WorkbenchLabelProvider; /** * * @author Andrew Eisenberg * @since 3.0.0 */ public class ListMessageDialog extends MessageDialog { class TableContentProvider implements IStructuredContentProvider { public Object[] getElements(Object inputElement) { if (inputElement instanceof IProject[]) { return (IProject[]) inputElement; } return null; } public void dispose() { } public void inputChanged(Viewer viewer2, Object oldInput, Object newInput) { } } private static final String TITLE = "Fix compiler level mismatches"; //$NON-NLS-1$ private final IProject[] mismatchedProjects; private IProject[] checkedMismatchedProjects; private CheckboxTableViewer viewer; /** * Opens the mismatched compiler dialog focusing on the selected projects * @param mismatchProjects * @return */ public static IProject[] openViewer(Shell shell, IProject[] mismatchProjects) { ListMessageDialog dialog = new ListMessageDialog(shell, mismatchProjects); int res = dialog.open(); if (res == 0D) { return dialog.getAllChecked(); } else { return null; } } @Override protected void buttonPressed(int buttonId) { if (buttonId == 0) { Object[] checkedElements = viewer.getCheckedElements(); checkedMismatchedProjects = new IProject[checkedElements.length]; System.arraycopy(checkedElements, 0, checkedMismatchedProjects, 0, checkedElements.length); } super.buttonPressed(buttonId); } @Override protected boolean isResizable() { return true; } public ListMessageDialog(Shell shell, IProject[] mismatchedProjects) { super(shell, TITLE, null, createMessage(mismatchedProjects), QUESTION, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0); this.mismatchedProjects = mismatchedProjects; } @Override protected Control createCustomArea(Composite parent) { ((GridLayout) parent.getLayout()).numColumns = 2; ((GridLayout) parent.getLayout()).makeColumnsEqualWidth = false; viewer = CheckboxTableViewer.newCheckList(parent, SWT.BORDER); GridData gd = new GridData(GridData.FILL_BOTH); gd.heightHint = 150; gd.verticalSpan = 2; viewer.getTable().setLayoutData(gd); viewer.setContentProvider(new TableContentProvider()); viewer.setLabelProvider(new WorkbenchLabelProvider() { @Override protected String decorateText(String input, Object element) { String label = super.decorateText(input, element); if (element instanceof IProject) { SpecifiedVersion version = CompilerUtils.getCompilerLevel((IProject) element); return label + " -- " + version.toReadableVersionString(); } else { return label; } } }); viewer.setInput(mismatchedProjects); viewer.setAllChecked(true); applyDialogFont(viewer.getControl()); createButton(parent, "Select all", new SelectionAdapter() { //$NON-NLS-1$ @Override public void widgetSelected(SelectionEvent e) { viewer.setAllChecked(true); } }); createButton(parent, "Select none", new SelectionAdapter() { //$NON-NLS-1$ @Override public void widgetSelected(SelectionEvent e) { viewer.setAllChecked(false); } }); Composite compilerBlock = CompilerSwitchUIHelper.createCompilerSwitchBlock(parent); compilerBlock.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1)); return parent; } protected Button createButton(Composite parent, String label, SelectionListener listener) { return createButton(parent, label, SWT.PUSH, listener); } protected Button createButton(Composite parent, String label, int style, SelectionListener listener) { Button button = new Button(parent, SWT.PUSH); button.setFont(parent.getFont()); button.setText(label); button.addSelectionListener(listener); GridData gd = new GridData(); gd.horizontalAlignment = GridData.FILL; gd.grabExcessHorizontalSpace = false; gd.verticalAlignment = GridData.BEGINNING; gd.widthHint = 100; button.setLayoutData(gd); return button; } IProject[] getAllChecked() { return checkedMismatchedProjects; } private static String createMessage(IProject[] allMismatchedProjects) { StringBuilder sb = new StringBuilder(); if (allMismatchedProjects.length > 1) { sb.append("The following Groovy compiler mismatches have been found."); //$NON-NLS-1$ } else { sb.append("The following Groovy compiler mismatch has been found."); //$NON-NLS-1$ } if (allMismatchedProjects.length > 1) { sb.append( " These projects may not compile until their compiler level matches the workspace level.\n\n"); //$NON-NLS-1$ } else { sb.append(" This project may not compile until its compiler level matches the workspace level.\n\n"); //$NON-NLS-1$ } sb.append("Do you want to change the project compiler levels to match the workspace level?"); //$NON-NLS-1$ return sb.toString(); } }