Java tutorial
/******************************************************************************* * Copyright (c) 2015 Ericsson * * 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: * Bernd Hufmann - Initial API and implementation *******************************************************************************/ package org.eclipse.tracecompass.internal.tmf.remote.ui.wizards.fetch; import java.util.ArrayList; import java.util.List; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ControlAdapter; import org.eclipse.swt.events.ControlEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.tracecompass.internal.tmf.remote.ui.Activator; import org.eclipse.tracecompass.internal.tmf.remote.ui.messages.RemoteMessages; import org.eclipse.tracecompass.internal.tmf.remote.ui.wizards.fetch.model.RemoteImportConnectionNodeElement; import org.eclipse.tracecompass.internal.tmf.remote.ui.wizards.fetch.model.RemoteImportProfileElement; import org.eclipse.tracecompass.internal.tmf.remote.ui.wizards.fetch.preferences.RemoteProfilesPreferencePage; import org.eclipse.tracecompass.internal.tmf.ui.project.wizards.importtrace.ImportTraceWizardPage; import org.eclipse.tracecompass.internal.tmf.ui.project.wizards.importtrace.Messages; import org.eclipse.tracecompass.internal.tmf.ui.project.wizards.tracepkg.TracePackageElement; import org.eclipse.ui.dialogs.PreferencesUtil; import org.eclipse.ui.plugin.AbstractUIPlugin; /** * Wizard page for selection and managing remote profiles. */ public class RemoteFetchLogWizardPage extends ImportTraceWizardPage { // ------------------------------------------------------------------------ // Constant(s) // ------------------------------------------------------------------------ private static final String PAGE_NAME = "org.eclipse.tracecompass.internal.tmf.remote.ui.wizards.fetch.RemoteFetchLogWizardPage"; //$NON-NLS-1$ private static final String ICON_PATH = "icons/elcl16/fetch_log_wiz.gif"; //$NON-NLS-1$ // ------------------------------------------------------------------------ // Attributes // ------------------------------------------------------------------------ private Combo fProfileNameCombo; private Text fNodesText; // Button to overwrite existing resources or not private Button fOverwriteExistingResourcesCheckbox; private List<RemoteImportProfileElement> fProfiles = new ArrayList<>(); private RemoteImportProfileElement fProfile; // ------------------------------------------------------------------------ // Constructor(s) // ------------------------------------------------------------------------ /** * Constructor * * @param title * Name of page * @param selection * Current selection */ public RemoteFetchLogWizardPage(String title, IStructuredSelection selection) { super(PAGE_NAME, selection); setTitle(title); setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin(Activator.PLUGIN_ID, ICON_PATH)); setDescription(RemoteMessages.RemoteFetchLogWizardPage_Description); } // ------------------------------------------------------------------------ // Operations // ------------------------------------------------------------------------ @Override public boolean finish() { // Nothing to do for this page return true; } @Override public boolean canFlipToNextPage() { return fProfile != null; } // ------------------------------------------------------------------------ // Source Group // ------------------------------------------------------------------------ @Override protected void createSourceGroup(final Composite parent) { Composite directoryContainerGroup = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.numColumns = 3; directoryContainerGroup.setLayout(layout); directoryContainerGroup.setFont(parent.getFont()); directoryContainerGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); Label profileLabel = new Label(directoryContainerGroup, SWT.NONE); profileLabel.setText(RemoteMessages.RemoteProfilesPreferencePage_ProfileNameLabel); profileLabel.setFont(parent.getFont()); fProfileNameCombo = new Combo(directoryContainerGroup, SWT.BORDER | SWT.READ_ONLY); GridData pdata = new GridData(SWT.FILL, SWT.FILL, true, false); pdata.widthHint = SIZING_TEXT_FIELD_WIDTH; fProfileNameCombo.setLayoutData(pdata); fProfileNameCombo.setFont(parent.getFont()); Button manageProfilesButton = new Button(directoryContainerGroup, SWT.NONE); manageProfilesButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(parent.getShell(), RemoteProfilesPreferencePage.ID, new String[] { RemoteProfilesPreferencePage.ID }, null); RemoteProfilesPreferencePage page = (RemoteProfilesPreferencePage) dialog.getSelectedPage(); page.setSelectedProfile(fProfileNameCombo.getText()); if (dialog.open() == Window.OK) { fProfiles.clear(); fProfile = null; updateProfileData(); if (page.getSelectedProfile() != null) { int index = fProfileNameCombo.indexOf(page.getSelectedProfile()); fProfileNameCombo.select(index); } updateFromSourceField(); } } }); manageProfilesButton.setText(RemoteMessages.RemoteFetchLogWizardPage_ManageProfileLabel); Label nodesLabel = new Label(directoryContainerGroup, SWT.NONE); nodesLabel.setText(RemoteMessages.RemoteFetchLogWizardPage_NodesLabel); nodesLabel.setFont(parent.getFont()); fNodesText = new Text(directoryContainerGroup, SWT.NONE); GridData gd_nodeText = new GridData(SWT.FILL, SWT.FILL, true, false); gd_nodeText.horizontalSpan = 2; gd_nodeText.widthHint = 0; fNodesText.setLayoutData(gd_nodeText); fNodesText.setEditable(false); fNodesText.addControlListener(new ControlAdapter() { @Override public void controlResized(ControlEvent e) { updateNodesText(); } }); updateProfileData(); updateFromSourceField(); fProfileNameCombo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { updateFromSourceField(); } }); setErrorMessage(null); setPageComplete(true); } @Override public boolean validateSourceGroup() { return true; } // ------------------------------------------------------------------------ // Options // ------------------------------------------------------------------------ @Override protected void createOptionsGroupButtons(Group optionsGroup) { // Overwrite checkbox fOverwriteExistingResourcesCheckbox = new Button(optionsGroup, SWT.CHECK); fOverwriteExistingResourcesCheckbox.setFont(optionsGroup.getFont()); fOverwriteExistingResourcesCheckbox.setText(Messages.ImportTraceWizard_OverwriteExistingTrace); fOverwriteExistingResourcesCheckbox.setSelection(false); fOverwriteExistingResourcesCheckbox.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { updateNextPage(); setPageComplete(fProfile != null); } }); updateWidgetEnablements(); } // ------------------------------------------------------------------------ // Helper methods // ------------------------------------------------------------------------ private void updateProfileData() { fProfileNameCombo.removeAll(); fProfiles = RemoteProfilesPreferencePage.getRemoteProfiles(new NullProgressMonitor()); int i = 0; for (RemoteImportProfileElement profile : fProfiles) { fProfileNameCombo.add(profile.getProfileName(), i++); } if (i > 0) { fProfileNameCombo.select(0); } } private void updateFromSourceField() { int index = fProfileNameCombo.getSelectionIndex(); if (index < 0) { updateNodesText(); updateNextPage(); setPageComplete(false); return; } fProfile = fProfiles.get(index); updateNodesText(); updateNextPage(); setPageComplete(true); } private void updateNodesText() { if (fProfile == null) { fNodesText.setText(""); //$NON-NLS-1$ fNodesText.setToolTipText(null); return; } StringBuilder text = new StringBuilder(); StringBuilder tooltip = new StringBuilder(); for (TracePackageElement element : fProfile.getChildren()) { if (element instanceof RemoteImportConnectionNodeElement) { RemoteImportConnectionNodeElement node = (RemoteImportConnectionNodeElement) element; if (text.length() != 0) { text.append(", "); //$NON-NLS-1$ tooltip.append('\n'); } String nodeInfo = node.getName() + " (" + //$NON-NLS-1$ node.getURI().toString() + ')'; text.append(nodeInfo); tooltip.append(nodeInfo); } } fNodesText.setText(text.toString()); fNodesText.setToolTipText(null); while (fNodesText.computeSize(SWT.DEFAULT, SWT.DEFAULT).x > fNodesText.getSize().x && text.length() > 0) { text.deleteCharAt(text.length() - 1); fNodesText.setText(text.toString() + "..."); //$NON-NLS-1$ fNodesText.setToolTipText(tooltip.toString()); } } private void updateNextPage() { IWizardPage nextPage = getNextPage(); if (nextPage instanceof RemoteFetchLogWizardRemotePage) { ((RemoteFetchLogWizardRemotePage) nextPage).setPageData(fProfile, fOverwriteExistingResourcesCheckbox != null ? fOverwriteExistingResourcesCheckbox.getSelection() : false); } } }