Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2006 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 API and implementation *******************************************************************************/ package descent.internal.ui.preferences; import org.eclipse.core.runtime.Assert; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.swt.SWT; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Point; 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.Control; import org.eclipse.swt.widgets.Link; import org.eclipse.ui.dialogs.PreferencesUtil; import descent.core.JavaCore; import descent.core.formatter.DefaultCodeFormatterConstants; import descent.internal.corext.util.CodeFormatterUtil; import descent.internal.corext.util.Messages; import descent.internal.ui.JavaPlugin; import descent.ui.PreferenceConstants; /** * Configures Java Editor typing preferences. * * @since 3.1 */ class SmartTypingConfigurationBlock extends AbstractConfigurationBlock { public SmartTypingConfigurationBlock(OverlayPreferenceStore store) { super(store); store.addKeys(createOverlayStoreKeys()); } private OverlayPreferenceStore.OverlayKey[] createOverlayStoreKeys() { return new OverlayPreferenceStore.OverlayKey[] { new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_PASTE), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_IMPORTS_ON_PASTE), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_CLOSE_STRINGS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_CLOSE_BRACKETS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_CLOSE_BRACES), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_CLOSE_JAVADOCS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_WRAP_STRINGS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_ESCAPE_STRINGS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_ADD_JAVADOC_TAGS), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_SEMICOLON), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_TAB), new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_OPENING_BRACE), }; } /** * Creates page for mark occurrences preferences. * * @param parent the parent composite * @return the control for the preference page */ public Control createControl(Composite parent) { ScrolledPageContent scrolled = new ScrolledPageContent(parent, SWT.H_SCROLL | SWT.V_SCROLL); scrolled.setExpandHorizontal(true); scrolled.setExpandVertical(true); Composite control = new Composite(scrolled, SWT.NONE); GridLayout layout = new GridLayout(); control.setLayout(layout); Composite composite; composite = createSubsection(control, null, PreferencesMessages.SmartTypingConfigurationBlock_autoclose_title); addAutoclosingSection(composite); composite = createSubsection(control, null, PreferencesMessages.SmartTypingConfigurationBlock_automove_title); addAutopositionSection(composite); composite = createSubsection(control, null, PreferencesMessages.SmartTypingConfigurationBlock_tabs_title); addTabSection(composite); composite = createSubsection(control, null, PreferencesMessages.SmartTypingConfigurationBlock_pasting_title); addPasteSection(composite); composite = createSubsection(control, null, PreferencesMessages.SmartTypingConfigurationBlock_strings_title); addStringsSection(composite); scrolled.setContent(control); final Point size = control.computeSize(SWT.DEFAULT, SWT.DEFAULT); scrolled.setMinSize(size.x, size.y); return scrolled; } private void addStringsSection(Composite composite) { GridLayout layout = new GridLayout(); composite.setLayout(layout); String label; Button master, slave; label = PreferencesMessages.JavaEditorPreferencePage_wrapStrings; master = addCheckBox(composite, label, PreferenceConstants.EDITOR_WRAP_STRINGS, 0); label = PreferencesMessages.JavaEditorPreferencePage_escapeStrings; slave = addCheckBox(composite, label, PreferenceConstants.EDITOR_ESCAPE_STRINGS, 0); createDependency(master, slave); } private void addPasteSection(Composite composite) { GridLayout layout = new GridLayout(); composite.setLayout(layout); String label; label = PreferencesMessages.JavaEditorPreferencePage_smartPaste; addCheckBox(composite, label, PreferenceConstants.EDITOR_SMART_PASTE, 0); label = PreferencesMessages.JavaEditorPreferencePage_importsOnPaste; addCheckBox(composite, label, PreferenceConstants.EDITOR_IMPORTS_ON_PASTE, 0); } private void addTabSection(Composite composite) { GridLayout layout = new GridLayout(); composite.setLayout(layout); String label; label = PreferencesMessages.JavaEditorPreferencePage_typing_smartTab; addCheckBox(composite, label, PreferenceConstants.EDITOR_SMART_TAB, 0); createMessage(composite); } private void addAutopositionSection(Composite composite) { GridLayout layout = new GridLayout(); composite.setLayout(layout); String label; label = PreferencesMessages.JavaEditorPreferencePage_typing_smartSemicolon; addCheckBox(composite, label, PreferenceConstants.EDITOR_SMART_SEMICOLON, 0); label = PreferencesMessages.JavaEditorPreferencePage_typing_smartOpeningBrace; addCheckBox(composite, label, PreferenceConstants.EDITOR_SMART_OPENING_BRACE, 0); } private void addAutoclosingSection(Composite composite) { GridLayout layout = new GridLayout(); layout.numColumns = 1; composite.setLayout(layout); String label; Button master, slave; label = PreferencesMessages.JavaEditorPreferencePage_closeStrings; addCheckBox(composite, label, PreferenceConstants.EDITOR_CLOSE_STRINGS, 0); label = PreferencesMessages.JavaEditorPreferencePage_closeBrackets; addCheckBox(composite, label, PreferenceConstants.EDITOR_CLOSE_BRACKETS, 0); label = PreferencesMessages.JavaEditorPreferencePage_closeBraces; addCheckBox(composite, label, PreferenceConstants.EDITOR_CLOSE_BRACES, 0); label = PreferencesMessages.JavaEditorPreferencePage_closeJavaDocs; master = addCheckBox(composite, label, PreferenceConstants.EDITOR_CLOSE_JAVADOCS, 0); label = PreferencesMessages.JavaEditorPreferencePage_addJavaDocTags; slave = addCheckBox(composite, label, PreferenceConstants.EDITOR_ADD_JAVADOC_TAGS, 0); createDependency(master, slave); } private void createMessage(final Composite composite) { // TODO create a link with an argument, so the formatter preference page can open the // current profile automatically. String linkTooltip = PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tooltip; String text; String indentMode = JavaPlugin.getDefault().getCombinedPreferenceStore() .getString(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR); if (JavaCore.TAB.equals(indentMode)) text = Messages.format(PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tab_text, new String[] { Integer.toString(getTabDisplaySize()) }); else text = Messages.format(PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_others_text, new String[] { Integer.toString(getTabDisplaySize()), Integer.toString(getIndentSize()), getIndentMode() }); final Link link = new Link(composite, SWT.NONE); link.setText(text); link.setToolTipText(linkTooltip); GridData gd = new GridData(SWT.FILL, SWT.BEGINNING, true, false); gd.widthHint = 300; // don't get wider initially link.setLayoutData(gd); link.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { PreferencesUtil.createPreferenceDialogOn(link.getShell(), "descent.ui.preferences.CodeFormatterPreferencePage", null, null); //$NON-NLS-1$ } }); final IPreferenceStore combinedStore = JavaPlugin.getDefault().getCombinedPreferenceStore(); final IPropertyChangeListener propertyChangeListener = new IPropertyChangeListener() { private boolean fHasRun = false; public void propertyChange(PropertyChangeEvent event) { if (fHasRun) return; if (composite.isDisposed()) return; String property = event.getProperty(); if (DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR.equals(property) || DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE.equals(property)) { fHasRun = true; link.dispose(); createMessage(composite); Dialog.applyDialogFont(composite); composite.redraw(); composite.layout(); } } }; combinedStore.addPropertyChangeListener(propertyChangeListener); link.addDisposeListener(new DisposeListener() { public void widgetDisposed(org.eclipse.swt.events.DisposeEvent e) { combinedStore.removePropertyChangeListener(propertyChangeListener); } }); } private String getIndentMode() { String indentMode = JavaPlugin.getDefault().getCombinedPreferenceStore() .getString(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR); if (JavaCore.SPACE.equals(indentMode)) return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_spaces; if (JavaCore.TAB.equals(indentMode)) return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tabs; if (DefaultCodeFormatterConstants.MIXED.equals(indentMode)) return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tabsAndSpaces; Assert.isTrue(false, "Illegal indent mode - must not happen"); //$NON-NLS-1$ return null; } private int getIndentSize() { return CodeFormatterUtil.getIndentWidth(null); } private int getTabDisplaySize() { return CodeFormatterUtil.getTabWidth(null); } }