Java tutorial
/******************************************************************************* * Copyright (c) 2007 Pascal Essiembre. * 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: * Pascal Essiembre - initial API and implementation ******************************************************************************/ package org.eclipse.babel.editor.preferences; import org.eclipse.babel.messages.Messages; import org.eclipse.core.runtime.preferences.IEclipsePreferences; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.swt.SWT; 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.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.osgi.service.prefs.BackingStoreException; /** * Plugin preference page for reporting/performance options. * * @author Pascal Essiembre (pascal@essiembre.com) */ public class ReportingPrefPage extends AbstractPrefPage { /* Preference fields. */ private Combo reportMissingVals; private Combo reportDuplVals; private Combo reportSimVals; private Text reportSimPrecision; private Button[] reportSimValsMode = new Button[2]; /** * Constructor. */ public ReportingPrefPage() { super(); } /** * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite) */ protected Control createContents(Composite parent) { IPreferenceStore prefs = getPreferenceStore(); Composite field = null; Composite composite = new Composite(parent, SWT.NONE); composite.setLayout(new GridLayout(1, false)); new Label(composite, SWT.NONE).setText(Messages.prefs_perform_intro1); new Label(composite, SWT.NONE).setText(Messages.prefs_perform_intro2); new Label(composite, SWT.NONE).setText(" "); //$NON-NLS-1$ // Report missing values? field = createFieldComposite(composite); GridData gridData = new GridData(); gridData.grabExcessHorizontalSpace = true; field.setLayoutData(gridData); new Label(field, SWT.NONE).setText(Messages.prefs_perform_missingVals); reportMissingVals = new Combo(field, SWT.READ_ONLY); populateCombo(reportMissingVals, prefs.getInt(MsgEditorPreferences.REPORT_MISSING_VALUES_LEVEL)); // reportMissingVals.setSelection( // prefs.getBoolean(MsgEditorPreferences.REPORT_MISSING_VALUES)); // Report duplicate values? field = createFieldComposite(composite); gridData = new GridData(); gridData.grabExcessHorizontalSpace = true; field.setLayoutData(gridData); new Label(field, SWT.NONE).setText(Messages.prefs_perform_duplVals); reportDuplVals = new Combo(field, SWT.READ_ONLY); populateCombo(reportDuplVals, prefs.getInt(MsgEditorPreferences.REPORT_DUPL_VALUES_LEVEL)); // Report similar values? field = createFieldComposite(composite); gridData = new GridData(); gridData.grabExcessHorizontalSpace = true; field.setLayoutData(gridData); new Label(field, SWT.NONE).setText(Messages.prefs_perform_simVals); reportSimVals = new Combo(field, SWT.READ_ONLY); populateCombo(reportSimVals, prefs.getInt(MsgEditorPreferences.REPORT_SIM_VALUES_LEVEL)); reportSimVals.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { refreshEnabledStatuses(); } }); Composite simValModeGroup = new Composite(composite, SWT.NONE); GridLayout gridLayout = new GridLayout(2, false); gridLayout.marginWidth = indentPixels; gridLayout.marginHeight = 0; gridLayout.verticalSpacing = 0; simValModeGroup.setLayout(gridLayout); // Report similar values: word count reportSimValsMode[0] = new Button(simValModeGroup, SWT.RADIO); reportSimValsMode[0].setSelection(prefs.getBoolean(MsgEditorPreferences.REPORT_SIM_VALUES_WORD_COMPARE)); new Label(simValModeGroup, SWT.NONE).setText(Messages.prefs_perform_simVals_wordCount); // Report similar values: Levensthein reportSimValsMode[1] = new Button(simValModeGroup, SWT.RADIO); reportSimValsMode[1].setSelection(prefs.getBoolean(MsgEditorPreferences.REPORT_SIM_VALUES_LEVENSTHEIN)); new Label(simValModeGroup, SWT.NONE).setText(Messages.prefs_perform_simVals_levensthein); // Report similar values: precision level field = createFieldComposite(composite, indentPixels); new Label(field, SWT.NONE).setText(Messages.prefs_perform_simVals_precision); reportSimPrecision = new Text(field, SWT.BORDER); reportSimPrecision.setText(prefs.getString(MsgEditorPreferences.REPORT_SIM_VALUES_PRECISION)); reportSimPrecision.setTextLimit(6); setWidthInChars(reportSimPrecision, 6); reportSimPrecision.addKeyListener( new DoubleTextValidatorKeyListener(Messages.prefs_perform_simVals_precision_error, 0, 1)); refreshEnabledStatuses(); return composite; } /** * Creates the items in the combo and select the item that matches the * current value. * * @param combo * @param selectedLevel */ private void populateCombo(Combo combo, int selectedLevel) { combo.add(Messages.prefs_perform_message_ignore); combo.add(Messages.prefs_perform_message_info); combo.add(Messages.prefs_perform_message_warning); combo.add(Messages.prefs_perform_message_error); combo.select(selectedLevel); GridData gridData = new GridData(); gridData.grabExcessHorizontalSpace = true; gridData.horizontalAlignment = SWT.RIGHT; combo.setLayoutData(gridData); } /** * @see org.eclipse.jface.preference.IPreferencePage#performOk() */ public boolean performOk() { IEclipsePreferences prefs = MsgEditorPreferences.getEclipsePreferenceStore(); prefs.putInt(MsgEditorPreferences.REPORT_MISSING_VALUES_LEVEL, reportMissingVals.getSelectionIndex()); prefs.putInt(MsgEditorPreferences.REPORT_DUPL_VALUES_LEVEL, reportDuplVals.getSelectionIndex()); prefs.putInt(MsgEditorPreferences.REPORT_SIM_VALUES_LEVEL, reportSimVals.getSelectionIndex()); prefs.putBoolean(MsgEditorPreferences.REPORT_SIM_VALUES_WORD_COMPARE, reportSimValsMode[0].getSelection()); prefs.putBoolean(MsgEditorPreferences.REPORT_SIM_VALUES_LEVENSTHEIN, reportSimValsMode[1].getSelection()); double precision = 0.75d; try { double textPrecision = Double.parseDouble(reportSimPrecision.getText()); precision = textPrecision; } catch (NumberFormatException ex) { } prefs.putDouble(MsgEditorPreferences.REPORT_SIM_VALUES_PRECISION, precision); try { prefs.flush(); } catch (BackingStoreException e) { e.printStackTrace(); } refreshEnabledStatuses(); return super.performOk(); } /** * @see org.eclipse.jface.preference.PreferencePage#performDefaults() */ protected void performDefaults() { reportMissingVals.select(MsgEditorPreferences.VALIDATION_MESSAGE_ERROR); reportDuplVals.select(MsgEditorPreferences.VALIDATION_MESSAGE_WARNING); reportSimVals.select(IPreferenceStore.INT_DEFAULT_DEFAULT); reportSimValsMode[0].setSelection(true); reportSimValsMode[1].setSelection(IPreferenceStore.BOOLEAN_DEFAULT_DEFAULT); reportSimPrecision.setText(Double.toString(0.75d)); refreshEnabledStatuses(); super.performDefaults(); } /* default */void refreshEnabledStatuses() { boolean isReportingSimilar = reportSimVals .getSelectionIndex() != MsgEditorPreferences.VALIDATION_MESSAGE_IGNORE; for (int i = 0; i < reportSimValsMode.length; i++) { reportSimValsMode[i].setEnabled(isReportingSimilar); } reportSimPrecision.setEnabled(isReportingSimilar); } }