| /******************************************************************************* |
| * Copyright (c) 2005, 2007 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 org.eclipse.jface.snippets.wizard; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.jface.viewers.ArrayContentProvider; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.wizard.IWizardPage; |
| import org.eclipse.jface.wizard.Wizard; |
| import org.eclipse.jface.wizard.WizardDialog; |
| import org.eclipse.jface.wizard.WizardPage; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| 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.Display; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.ProgressBar; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Example how to load data from a background thread into a TableViewer |
| * |
| * @author Tom Schindl <tom.schindl@bestsolution.at> |
| * @since 1.0 |
| */ |
| public class Snippet047WizardWithLongRunningOperation { |
| |
| private static class MyWizard extends Wizard { |
| |
| private int loadingType; |
| |
| public MyWizard(int loadingType) { |
| this.loadingType = loadingType; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.wizard.Wizard#addPages() |
| */ |
| public void addPages() { |
| addPage(new MyWizardPage("Standard Page")); |
| addPage(new MyWizardPageThread("Thread Page", loadingType)); |
| } |
| |
| public boolean performFinish() { |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.wizard.Wizard#canFinish() |
| */ |
| public boolean canFinish() { |
| IWizardPage[] pages = getPages(); |
| for (int i = 0; i < pages.length; i++) { |
| if (!pages[i].isPageComplete()) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| }; |
| |
| private static class MyWizardPage extends WizardPage { |
| |
| protected MyWizardPage(String pageName) { |
| super(pageName); |
| setTitle(pageName); |
| } |
| |
| public void createControl(Composite parent) { |
| Composite comp = new Composite(parent, SWT.NONE); |
| setControl(comp); |
| } |
| } |
| |
| private static class MyWizardPageThread extends WizardPage { |
| private int loadingType; |
| private boolean loading = true; |
| private TableViewer v; |
| |
| protected MyWizardPageThread(String pageName, int loadingType) { |
| super(pageName); |
| this.loadingType = loadingType; |
| setTitle(pageName); |
| } |
| |
| public void createControl(final Composite parent) { |
| final Composite comp = new Composite(parent, SWT.NONE); |
| comp.setLayout(new GridLayout(1, false)); |
| |
| v = new TableViewer(comp, SWT.FULL_SELECTION); |
| v.setContentProvider(new ArrayContentProvider()); |
| v.getTable().setLayoutData(new GridData(GridData.FILL_BOTH)); |
| v.addSelectionChangedListener(new ISelectionChangedListener() { |
| |
| public void selectionChanged(SelectionChangedEvent event) { |
| getWizard().getContainer().updateButtons(); |
| } |
| |
| }); |
| |
| final Composite barContainer = new Composite(comp, SWT.NONE); |
| barContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| barContainer.setLayout(new GridLayout(2, false)); |
| |
| Label l = new Label(barContainer, SWT.NONE); |
| l.setText("Loading Data"); |
| |
| final ProgressBar bar = new ProgressBar(barContainer, |
| (loadingType == 1) ? SWT.INDETERMINATE : SWT.NONE); |
| bar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| |
| if (loadingType == 2) { |
| bar.setMaximum(10); |
| } |
| |
| setControl(comp); |
| |
| Thread t = new Thread() { |
| |
| public void run() { |
| if (loadingType == 1) { |
| try { |
| Thread.sleep(10000); |
| final ArrayList ms = new ArrayList(); |
| for (int i = 0; i < 10; i++) { |
| ms.add(new MyModel(i)); |
| } |
| |
| if (v.getTable().isDisposed()) { |
| return; |
| } |
| |
| parent.getDisplay().asyncExec(new Runnable() { |
| |
| public void run() { |
| v.setInput(ms); |
| ((GridData) barContainer.getLayoutData()).exclude = true; |
| comp.layout(true); |
| } |
| |
| }); |
| } catch (InterruptedException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } else { |
| final ArrayList ms = new ArrayList(); |
| parent.getDisplay().syncExec(new Runnable() { |
| |
| public void run() { |
| v.setInput(ms); |
| } |
| |
| }); |
| |
| for (int i = 0; i < 10; i++) { |
| final int j = i; |
| if (v.getTable().isDisposed()) { |
| return; |
| } |
| parent.getDisplay().asyncExec(new Runnable() { |
| |
| public void run() { |
| MyModel tmp = new MyModel(j); |
| v.add(tmp); |
| ms.add(tmp); |
| bar.setSelection(j + 1); |
| } |
| }); |
| |
| try { |
| Thread.sleep(1000); |
| } catch (InterruptedException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| |
| parent.getDisplay().asyncExec(new Runnable() { |
| |
| public void run() { |
| ((GridData) barContainer.getLayoutData()).exclude = true; |
| comp.layout(true); |
| } |
| |
| }); |
| } |
| |
| parent.getDisplay().syncExec(new Runnable() { |
| |
| public void run() { |
| loading = false; |
| getWizard().getContainer().updateButtons(); |
| } |
| |
| }); |
| } |
| |
| }; |
| |
| t.start(); |
| } |
| |
| public boolean isPageComplete() { |
| return !loading && !v.getSelection().isEmpty(); |
| } |
| |
| } |
| |
| private static class MyModel { |
| private int index; |
| |
| public MyModel(int index) { |
| this.index = index; |
| } |
| |
| public String toString() { |
| return "Item-" + index; |
| } |
| } |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| |
| final Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| |
| Button b = new Button(shell, SWT.PUSH); |
| b.setText("Load in one Chunk"); |
| b.addSelectionListener(new SelectionAdapter() { |
| |
| public void widgetSelected(SelectionEvent e) { |
| WizardDialog dialog = new WizardDialog(shell, new MyWizard(1)); |
| dialog.open(); |
| } |
| |
| }); |
| |
| b = new Button(shell, SWT.PUSH); |
| b.setText("Load Item by Item"); |
| b.addSelectionListener(new SelectionAdapter() { |
| |
| public void widgetSelected(SelectionEvent e) { |
| WizardDialog dialog = new WizardDialog(shell, new MyWizard(2)); |
| dialog.open(); |
| } |
| |
| }); |
| |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| } |
| } |