Java tutorial
//------------------------------------------------------------------------------ // 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 implementation //------------------------------------------------------------------------------ package org.eclipse.epf.importing.wizards; import java.util.Iterator; import org.eclipse.epf.authoring.ui.AuthoringUIResources; import org.eclipse.epf.importing.ImportPlugin; import org.eclipse.epf.importing.ImportResources; import org.eclipse.epf.importing.services.ConfigSpecs; import org.eclipse.epf.importing.services.ConfigurationImportData; import org.eclipse.epf.library.ui.LibraryUIImages; import org.eclipse.epf.ui.wizards.BaseWizardPage; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.ISelectionChangedListener; 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.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; 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.Label; import org.eclipse.swt.widgets.Text; /** * A wizard page that prompts the user to select the configuration * specificaitons to import. * * @author Jeff Hardy * @author Kelvin Low * @since 1.0 */ public class SelectConfigSpecsToImportPage extends BaseWizardPage implements ISelectionChangedListener, ICheckStateListener { public static final String PAGE_NAME = SelectConfigSpecsToImportPage.class.getName(); private static final String libraryConfigSpecExists = ImportResources.SelectConfigSpecsToImportPage_libraryConfigSpecExists; private static final String libraryConfigSpecNotExists = ImportResources.SelectConfigSpecsToImportPage_libraryConfigSpecNotExists; private static final String configSpecNoSelection = ImportResources.SelectConfigSpecsToImportPage_configSpecNoSelection; private static final String configSpecDataLabel = ImportResources.SelectConfigSpecsToImportPage_configSpecDataLabel; private CheckboxTableViewer ctrl_chkboxTableViewer; // 2 controls for displaying configspec info for plugins in import directory private Text ctrl_briefDescImport; private Label importConfigSpecLabel; // 2 controls for displaying configspec info for plugins in the library private Text ctrl_briefDescLibrary; private Label libraryConfigSpecLabel; private Composite container; private ConfigurationImportData data; private Button selectAllButton; private Button deselectAllButton; /** * Creates a new instance. */ public SelectConfigSpecsToImportPage(ConfigurationImportData data) { super(PAGE_NAME); setTitle(ImportResources.selectConfigSpecsWizardPage_title); setDescription(ImportResources.selectConfigSpecsWizardPage_text); setImageDescriptor(ImportPlugin.getDefault().getImageDescriptor("full/wizban/imp_lib_conf_wizban.gif")); //$NON-NLS-1$ this.data = data; } /** * @see org.eclipse.jface.dialogs.IDialogPage#createControl(Composite) */ public void createControl(Composite parent) { container = new Composite(parent, SWT.NONE); container.setLayout(new GridLayout(2, true)); Composite tableContainer = new Composite(container, SWT.NONE); tableContainer.setLayout(new GridLayout()); GridData gridData = new GridData(GridData.FILL_HORIZONTAL); gridData.horizontalSpan = 2; tableContainer.setLayoutData(gridData); Composite container1 = new Composite(tableContainer, SWT.NONE); container1.setLayout(new GridLayout(3, false)); //createLabel(container1, // ImportResources.SelectConfigSpecsToImportPage_label_configs, 2); createLabel(container1, ImportResources.SelectConfigSpecsToImportPage_label_configs); selectAllButton = createButton(container1, AuthoringUIResources.AuthoringUIPlugin_SaveAllEditorsPage_SelectAllButtonLabel); deselectAllButton = createButton(container1, AuthoringUIResources.AuthoringUIPlugin_SaveAllEditorsPage_DeselectAllButtonLabel); ctrl_chkboxTableViewer = createCheckboxTableViewer(tableContainer, 1); ILabelProvider labelProvider = new LabelProvider() { public Image getImage(Object element) { return LibraryUIImages.IMG_METHOD_CONFIGURATON; } public String getText(Object element) { return super.getText(element); } }; ctrl_chkboxTableViewer.setLabelProvider(labelProvider); ctrl_chkboxTableViewer.setContentProvider(new ArrayContentProvider()); Composite importContainer = new Composite(container, SWT.NONE); importContainer.setLayout(new GridLayout()); importContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); createImportConfigSpecInfo(importContainer); Composite libraryContainer = new Composite(container, SWT.NONE); libraryContainer.setLayout(new GridLayout()); libraryContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); createLibraryConfigSpecInfo(libraryContainer); addListeners(); setControl(container); setPageComplete(false); } private void createImportConfigSpecInfo(Composite container) { importConfigSpecLabel = createLabel(container, configSpecNoSelection, 1); createLine(container, 1); createLabel(container, ImportResources.SelectConfigSpecsToImportPage_label_desc, 1); ctrl_briefDescImport = createMultiLineText(container, "", 275, 100, 1); //$NON-NLS-1$ } private void createLibraryConfigSpecInfo(Composite container) { libraryConfigSpecLabel = createLabel(container, configSpecNoSelection, 1); createLine(container, 1); createLabel(container, ImportResources.SelectConfigSpecsToImportPage_label_desc, 1); ctrl_briefDescLibrary = createMultiLineText(container, "", 275, 100, 1); //$NON-NLS-1$ } private void addListeners() { ctrl_chkboxTableViewer.addSelectionChangedListener(this); ctrl_chkboxTableViewer.addCheckStateListener(this); selectAllButton.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { ctrl_chkboxTableViewer.setAllChecked(true); setPageComplete(isPageComplete()); getWizard().getContainer().updateButtons(); } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); deselectAllButton.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { ctrl_chkboxTableViewer.setAllChecked(false); setPageComplete(isPageComplete()); getWizard().getContainer().updateButtons(); } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); } /** * @see org.eclipse.jface.viewers.ICheckStateListener#checkStateChanged(org.eclipse.jface.viewers.CheckStateChangedEvent) */ public void checkStateChanged(CheckStateChangedEvent event) { setPageComplete(isPageComplete()); getWizard().getContainer().updateButtons(); } /** * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) */ public void selectionChanged(SelectionChangedEvent event) { StructuredSelection selection = (StructuredSelection) event.getSelection(); if (!selection.isEmpty()) { Object[] configs = selection.toArray(); setDisplayAttributes((ConfigSpecs.Entry) configs[0]); } else { clearDisplayAttributes(); } } private void setDisplayAttributes(ConfigSpecs.Entry spec) { ctrl_briefDescImport.setText(spec.configSpec.brief_desc == null ? "" : spec.configSpec.brief_desc); //$NON-NLS-1$ importConfigSpecLabel.setText(configSpecDataLabel); if (spec.existingConfig != null) { ctrl_briefDescLibrary.setText(spec.existingConfig.getBriefDescription()); libraryConfigSpecLabel.setText(libraryConfigSpecExists); } else { libraryConfigSpecLabel.setText(libraryConfigSpecNotExists); ctrl_briefDescLibrary.setText(""); //$NON-NLS-1$ } } private void clearDisplayAttributes() { ctrl_briefDescImport.setText(""); //$NON-NLS-1$ ctrl_briefDescLibrary.setText(""); //$NON-NLS-1$ libraryConfigSpecLabel.setText(configSpecNoSelection); importConfigSpecLabel.setText(configSpecNoSelection); } /** * @see org.eclipse.jface.wizard.WizardPage#isCompleted() */ public boolean isPageComplete() { if (getErrorMessage() != null) return false; if (ctrl_chkboxTableViewer.getCheckedElements().length > 0) { // Set data.specs.configs list, fix the selected field of each // entry. Iterator iter = data.specs.configs.iterator(); while (iter.hasNext()) { ConfigSpecs.Entry e = (ConfigSpecs.Entry) iter.next(); if (ctrl_chkboxTableViewer.getChecked(e)) e.selected = true; else e.selected = false; } ((ImportConfigurationWizard) getWizard()).okToComplete = true; } else { ((ImportConfigurationWizard) getWizard()).okToComplete = false; } // Always return false so that the "Next" button is never enabled. return false; } /** * @see org.eclipse.jface.wizard.WizardPage#canFlipToNextPage() */ public boolean canFlipToNextPage() { return isPageComplete(); } /** * @see org.eclipse.epf.ui.wizards.BaseWizardPage#onEnterPage(Object) */ public void onEnterPage(Object obj) { ctrl_chkboxTableViewer.setInput(data.specs.configs); if (data.specs.configs.size() > 0) { IStructuredSelection sel = new StructuredSelection(data.specs.configs.get(0)); ctrl_chkboxTableViewer.setSelection(sel); } } }