Java tutorial
/******************************************************************************* * Copyright (c) 2009 Atlassian 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: * Atlassian - initial API and implementation ******************************************************************************/ package com.atlassian.connector.eclipse.internal.crucible.ui.wizards; import com.atlassian.connector.eclipse.internal.crucible.ui.CrucibleUiUtil; import com.atlassian.connector.eclipse.internal.crucible.ui.commons.CrucibleRepositoriesLabelProvider; import com.atlassian.theplugin.commons.crucible.api.model.Repository; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.mylyn.tasks.core.TaskRepository; import org.eclipse.swt.SWT; import org.eclipse.swt.dnd.Clipboard; import org.eclipse.swt.dnd.TextTransfer; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Text; import java.util.Set; /** * Page for adding a patch (from the clipboard) to a review * * @author Thomas Ehrnhoefer */ public class CrucibleAddPatchPage extends WizardPage { private Text patchText; private final TaskRepository taskRepository; private String selectedRepository; private Set<Repository> cachedRepositories; private ComboViewer comboViewer; private boolean includePatch = false; protected boolean patchPasted = false; public CrucibleAddPatchPage(TaskRepository repository) { super("cruciblePatch"); //$NON-NLS-1$ setTitle("Add Patch to Review"); setDescription("Attach a patch from the clipboard to the review."); this.taskRepository = repository; } public void createControl(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); composite .setLayout(GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(false).margins(5, 5).create()); final Button includePatchButton = new Button(composite, SWT.CHECK); includePatchButton.setText("Include this Patch from the clipboard in the review:"); GridDataFactory.fillDefaults().span(2, 1).applyTo(includePatchButton); includePatchButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { includePatch = includePatchButton.getSelection(); if (includePatch) { //copy content from clipboard, only if not already done Clipboard clipboard = new Clipboard(Display.getDefault()); Object patch = clipboard.getContents(TextTransfer.getInstance()); if (patch != null && patch instanceof String && !patchPasted) { patchText.setText((String) patch); patchPasted = true; } if (cachedRepositories == null) { cachedRepositories = CrucibleUiUtil.getCachedRepositories(taskRepository); } comboViewer.setInput(cachedRepositories); } validatePage(); } }); patchText = new Text(composite, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL); GridDataFactory.fillDefaults().span(2, 1).hint(SWT.DEFAULT, 220).grab(true, true).applyTo(patchText); patchText.setEditable(false); Label label = new Label(composite, SWT.NONE); label.setText("Select the repository on Crucible:"); GridDataFactory.fillDefaults().grab(false, false).applyTo(label); comboViewer = new ComboViewer(composite); comboViewer.getCombo().setText("Select Repository"); comboViewer.setContentProvider(new ArrayContentProvider()); comboViewer.setLabelProvider(new CrucibleRepositoriesLabelProvider()); comboViewer.setSorter(new ViewerSorter()); comboViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { if (comboViewer.getSelection() instanceof IStructuredSelection) { Object selected = ((IStructuredSelection) comboViewer.getSelection()).getFirstElement(); if (cachedRepositories.contains(selected)) { selectedRepository = ((Repository) selected).getName(); } } validatePage(); } }); GridDataFactory.fillDefaults().align(SWT.BEGINNING, SWT.BEGINNING).grab(true, false).hint(100, SWT.DEFAULT) .applyTo(comboViewer.getCombo()); Button updateData = new Button(composite, SWT.PUSH); updateData.setText("Update Repository Data"); GridDataFactory.fillDefaults().align(SWT.BEGINNING, SWT.BEGINNING).applyTo(updateData); updateData.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { } }); Dialog.applyDialogFont(composite); setControl(composite); } public boolean hasPatch() { return includePatch && patchText.getText().length() > 0 && selectedRepository != null; } public String getPatch() { return patchText.getText(); } /* * checks if page is complete updates the buttons */ private void validatePage() { setErrorMessage(null); boolean allFine = true; String errorMessage = null; if (patchText.getText().length() < 1) { errorMessage = "In order to create a review from a patch," + " copy the patch to the clipboard before opening this Wizard."; allFine = false; } else if (selectedRepository == null) { errorMessage = "Choose a repository on Crucible this patch relates to."; allFine = false; } if (includePatch) { setPageComplete(allFine); if (errorMessage != null) { setErrorMessage(errorMessage); } } else { setPageComplete(true); } getContainer().updateButtons(); } public String getPatchRepository() { return selectedRepository; } }