Java tutorial
/******************************************************************************* * Copyright (c) 2005, 2010 IBM Corporation and others. * 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package com.siteview.mde.internal.ui.launcher; import java.util.Map; import org.eclipse.core.runtime.MultiStatus; import org.eclipse.jface.dialogs.*; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.viewers.*; import org.eclipse.osgi.service.resolver.BundleDescription; import com.siteview.mde.internal.ui.*; import com.siteview.mde.internal.ui.elements.DefaultContentProvider; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.*; import org.eclipse.ui.PlatformUI; /** * Dialog that opens when plug-in validation fails during launching. Displays * a list of problems discovered. Allows the user to continue the launch or * cancel if @link {@link #showCancelButton(boolean)} is set to true. */ public class PluginStatusDialog extends TrayDialog { class ContentProvider extends DefaultContentProvider implements ITreeContentProvider { public Object[] getChildren(Object parentElement) { if (fInput.containsKey(parentElement)) { return (Object[]) fInput.get(parentElement); } if (parentElement instanceof MultiStatus) { return ((MultiStatus) parentElement).getChildren(); } return new Object[0]; } public Object getParent(Object element) { return null; } public boolean hasChildren(Object element) { if (fInput.containsKey(element) && element instanceof BundleDescription) { return true; } if (element instanceof MultiStatus) { return ((MultiStatus) element).getChildren().length > 0; } return false; } public Object[] getElements(Object inputElement) { return ((Map) inputElement).keySet().toArray(); } } private boolean fShowCancelButton; private Map fInput; private TreeViewer treeViewer; public PluginStatusDialog(Shell parentShell, int style) { super(parentShell); setShellStyle(style); MDEPlugin.getDefault().getLabelProvider().connect(this); } public PluginStatusDialog(Shell parentShell) { super(parentShell); setShellStyle(getShellStyle() | SWT.RESIZE); MDEPlugin.getDefault().getLabelProvider().connect(this); } public void showCancelButton(boolean showCancel) { fShowCancelButton = showCancel; } public void setInput(Map input) { fInput = input; } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite) */ protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); if (fShowCancelButton) { createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } } /* * @see org.eclipse.jface.window.Window#configureShell(Shell) */ protected void configureShell(Shell shell) { super.configureShell(shell); PlatformUI.getWorkbench().getHelpSystem().setHelp(shell, IHelpContextIds.PLUGIN_STATUS_DIALOG); } protected Control createDialogArea(Composite parent) { Composite container = (Composite) super.createDialogArea(parent); GridData gd = new GridData(GridData.FILL_BOTH); gd.widthHint = 400; gd.heightHint = 300; container.setLayoutData(gd); Label label = new Label(container, SWT.NONE); label.setText(MDEUIMessages.PluginStatusDialog_label); treeViewer = new TreeViewer(container); treeViewer.setContentProvider(new ContentProvider()); treeViewer.setLabelProvider(MDEPlugin.getDefault().getLabelProvider()); treeViewer.setComparator(new ViewerComparator()); treeViewer.setInput(fInput); treeViewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH)); getShell().setText(MDEUIMessages.PluginStatusDialog_pluginValidation); Dialog.applyDialogFont(container); return container; } public boolean close() { MDEPlugin.getDefault().getLabelProvider().disconnect(this); return super.close(); } private IDialogSettings getDialogSettings() { IDialogSettings settings = MDEPlugin.getDefault().getDialogSettings(); IDialogSettings section = settings.getSection(getDialogSectionName()); if (section == null) section = settings.addNewSection(getDialogSectionName()); return section; } protected String getDialogSectionName() { return MDEPlugin.getPluginId() + ".PLUGIN_STATUS_DIALOG"; //$NON-NLS-1$ } protected IDialogSettings getDialogBoundsSettings() { return getDialogSettings(); } public void refresh(Map input) { fInput = input; treeViewer.setInput(input); treeViewer.refresh(); } }