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.ArrayList; import java.util.List; 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.PluginImportData; import org.eclipse.epf.importing.services.PluginImportingService; import org.eclipse.epf.importing.services.PluginImportData.PluginInfo; import org.eclipse.epf.library.ui.LibraryUIImages; import org.eclipse.epf.ui.wizards.BaseWizardPage; import org.eclipse.epf.uma.MethodPlugin; 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.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.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Text; /** * A wizard page that prompts the user to the method plug-ins to import. * * @author Jeff Hardy * @author Kelvin Low * @since 1.0 */ public class SelectPluginsToImport extends BaseWizardPage implements ISelectionChangedListener, ICheckStateListener, Listener { public static final String PAGE_NAME = SelectPluginsToImport.class.getName(); private static final String libraryPluginExists = ImportResources.SelectPluginsToImport_libraryPluginExists; private static final String libraryPluginNotExists = ImportResources.SelectPluginsToImport_libraryPluginNotExists; private static final String pluginNoSelection = ImportResources.SelectPluginsToImport_pluginNoSelection; private static final String pluginDataLabel = ImportResources.SelectPluginsToImport_pluginDataLabel; private CheckboxTableViewer ctrl_chkboxTableViewer; private Text ctrl_authorImport; private Text ctrl_versionImport; private Text ctrl_briefDescImport; private Label importPluginLabel; private Text ctrl_authorLibrary; private Text ctrl_versionLibrary; private Text ctrl_briefDescLibrary; private Label libraryPluginLabel; private Composite container; private int checkedCount = 0; private List checkedPluginList = new ArrayList(); private PluginImportData data; private PluginImportingService service; private Button selectAllButton; private Button deselectAllButton; /** * Creates a new instance. */ public SelectPluginsToImport(PluginImportData data, PluginImportingService service) { super(PAGE_NAME); setTitle(ImportResources.selectPluginsWizardPage_title); setDescription(ImportResources.selectPluginsWizardPage_text); setImageDescriptor(ImportPlugin.getDefault().getImageDescriptor("full/wizban/imp_meth_plugin_wizban.gif")); //$NON-NLS-1$ this.service = service; 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.SelectPluginsToImport_label_plugins); selectAllButton = createButton(container1, AuthoringUIResources.AuthoringUIPlugin_SaveAllEditorsPage_SelectAllButtonLabel); deselectAllButton = createButton(container1, AuthoringUIResources.AuthoringUIPlugin_SaveAllEditorsPage_DeselectAllButtonLabel); ctrl_chkboxTableViewer = createCheckboxTableViewer(tableContainer, 2); ILabelProvider labelProvider = new LabelProvider() { public Image getImage(Object element) { return LibraryUIImages.IMG_METHOD_PLUGIN; } public String getText(Object element) { if (element instanceof MethodPlugin) { return ((MethodPlugin) element).getName(); } else { return element.toString(); } } }; ctrl_chkboxTableViewer.setLabelProvider(labelProvider); ctrl_chkboxTableViewer.setContentProvider(new ArrayContentProvider()); Composite importContainer = new Composite(container, SWT.NONE); importContainer.setLayout(new GridLayout()); createImportPluginInfo(importContainer); Composite libraryContainer = new Composite(container, SWT.NONE); libraryContainer.setLayout(new GridLayout()); createLibraryPluginInfo(libraryContainer); addListeners(); setControl(container); setPageComplete(false); } private void createImportPluginInfo(Composite container) { importPluginLabel = createLabel(container, pluginNoSelection, 1); createLine(container, 1); createLabel(container, ImportResources.SelectPluginsToImport_label_author, 1); ctrl_authorImport = createMultiLineText(container, "", 275, 40, 1); //$NON-NLS-1$ createLabel(container, ImportResources.SelectPluginsToImport_label_version, 1); ctrl_versionImport = createText(container, "", 275, 1); //$NON-NLS-1$ createLabel(container, ImportResources.SelectPluginsToImport_label_desc, 1); ctrl_briefDescImport = createMultiLineText(container, "", 275, 100, 1); //$NON-NLS-1$ } private void createLibraryPluginInfo(Composite container) { libraryPluginLabel = createLabel(container, pluginNoSelection, 1); createLine(container, 1); createLabel(container, ImportResources.SelectPluginsToImport_label_author, 1); ctrl_authorLibrary = createMultiLineText(container, "", 275, 40, 1); //$NON-NLS-1$ createLabel(container, ImportResources.SelectPluginsToImport_label_version, 1); ctrl_versionLibrary = createText(container, "", 275, 1); //$NON-NLS-1$ createLabel(container, ImportResources.SelectPluginsToImport_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); ImportPluginWizard wizard = (ImportPluginWizard) getWizard(); if (!wizard.data.getPlugins().isEmpty()) { checkedPluginList.clear(); checkedPluginList.addAll(wizard.data.getPlugins()); checkedCount = checkedPluginList.size(); setAllSelected(wizard.data, true); String message = service.validateSelection(); if (message != null && message.length() > 0) { setErrorMessage(message); } else { setErrorMessage(null); } } 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); checkedPluginList.clear(); checkedCount = 0; ImportPluginWizard wizard = (ImportPluginWizard) getWizard(); setAllSelected(wizard.data, false); setPageComplete(isPageComplete()); getWizard().getContainer().updateButtons(); } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); } private void setAllSelected(PluginImportData data, boolean selected) { for (PluginImportData.PluginInfo info : data.getPlugins()) { info.selected = selected; } } /** * @see org.eclipse.jface.viewers.ICheckStateListener#checkStateChanged(org.eclipse.jface.viewers.CheckStateChangedEvent) */ public void checkStateChanged(CheckStateChangedEvent event) { Object obj = event.getElement(); // Set the flag to import the selected plug-ins. if (obj instanceof PluginImportData.PluginInfo) { ((PluginImportData.PluginInfo) obj).selected = event.getChecked(); } String message = service.validateSelection(); if (message != null && message.length() > 0) { super.setErrorMessage(message); } else { super.setErrorMessage(null); } if (event.getChecked()) { checkedCount++; checkedPluginList.add(obj); } else { checkedCount--; checkedPluginList.remove(obj); } 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[] plugin = selection.toArray(); setDisplayAttributes((PluginInfo) plugin[0]); } else { clearDisplayAttributes(); } } /** * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event) */ public void handleEvent(Event event) { setPageComplete(isPageComplete()); getWizard().getContainer().updateButtons(); } private void setDisplayAttributes(PluginInfo plugin) { ctrl_authorImport.setText(plugin.authors == null ? "" : plugin.authors); //$NON-NLS-1$ ctrl_versionImport.setText(plugin.version == null ? "" : plugin.version); //$NON-NLS-1$ ctrl_briefDescImport.setText(plugin.brief_desc == null ? "" : plugin.brief_desc); //$NON-NLS-1$ importPluginLabel.setText(pluginDataLabel); if (plugin.existingPlugin != null) { libraryPluginLabel.setText(libraryPluginExists); ctrl_authorLibrary.setText(plugin.existingPlugin.getAuthors()); ctrl_versionLibrary.setText(plugin.existingPlugin.getVersion()); ctrl_briefDescLibrary.setText(plugin.existingPlugin.getBriefDescription()); } else { libraryPluginLabel.setText(libraryPluginNotExists); ctrl_authorLibrary.setText(""); //$NON-NLS-1$ ctrl_versionLibrary.setText(""); //$NON-NLS-1$ ctrl_briefDescLibrary.setText(""); //$NON-NLS-1$ } } private void clearDisplayAttributes() { importPluginLabel.setText(pluginNoSelection); ctrl_authorImport.setText(""); //$NON-NLS-1$ ctrl_versionImport.setText(""); //$NON-NLS-1$ ctrl_briefDescImport.setText(""); //$NON-NLS-1$ libraryPluginLabel.setText(pluginNoSelection); ctrl_authorLibrary.setText(""); //$NON-NLS-1$ ctrl_versionLibrary.setText(""); //$NON-NLS-1$ ctrl_briefDescLibrary.setText(""); //$NON-NLS-1$ } /** * @see org.eclipse.jface.wizard.WizardPage#isPageComplete() */ public boolean isPageComplete() { if (getErrorMessage() != null) return false; return (checkedCount > 0); } /** * @see org.eclipse.epf.ui.wizards.BaseWizardPage#onEnterPage(Object) */ public void onEnterPage(Object obj) { List plugins = data.getPlugins(); if (plugins != null) { ctrl_chkboxTableViewer.setInput(plugins.toArray()); if (!plugins.isEmpty()) { StructuredSelection selection = new StructuredSelection(plugins.get(0)); ctrl_chkboxTableViewer.setSelection(selection); } } } }