Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2011 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 * Guven Demir <guven.internet+eclipse@gmail.com> - [package explorer] Alternative package name shortening: abbreviation - https://bugs.eclipse.org/bugs/show_bug.cgi?id=299514 *******************************************************************************/ package ext.org.eclipse.jdt.internal.ui.preferences; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Text; import org.eclipse.core.runtime.IStatus; import org.eclipse.jdt.ui.PreferenceConstants; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PlatformUI; import patch.org.eclipse.jdt.internal.ui.JavaPlugin; import ext.org.eclipse.jdt.internal.ui.IJavaHelpContextIds; import ext.org.eclipse.jdt.internal.ui.dialogs.StatusInfo; import ext.org.eclipse.jdt.internal.ui.dialogs.StatusUtil; import ext.org.eclipse.jdt.internal.ui.viewsupport.JavaElementLabelComposer; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.Separator; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField; import ext.org.eclipse.jdt.internal.ui.wizards.dialogfields.TextBoxDialogField; public class AppearancePreferencePage extends PreferencePage implements IWorkbenchPreferencePage { private static final String SHOW_CU_CHILDREN = PreferenceConstants.SHOW_CU_CHILDREN; private static final String PREF_METHOD_RETURNTYPE = PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE; private static final String PREF_METHOD_TYPEPARAMETERS = PreferenceConstants.APPEARANCE_METHOD_TYPEPARAMETERS; private static final String PREF_COMPRESS_PACKAGE_NAMES = PreferenceConstants.APPEARANCE_COMPRESS_PACKAGE_NAMES; private static final String PREF_ABBREVIATE_PACKAGE_NAMES = PreferenceConstants.APPEARANCE_ABBREVIATE_PACKAGE_NAMES; private static final String PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW = PreferenceConstants.APPEARANCE_PKG_NAME_PATTERN_FOR_PKG_VIEW; private static final String PREF_PKG_NAME_ABBREVIATION_PATTERN_FOR_PKG_VIEW = PreferenceConstants.APPEARANCE_PKG_NAME_ABBREVIATION_PATTERN_FOR_PKG_VIEW; private static final String STACK_BROWSING_VIEWS_VERTICALLY = PreferenceConstants.BROWSING_STACK_VERTICALLY; private static final String PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER = PreferenceConstants.APPEARANCE_FOLD_PACKAGES_IN_PACKAGE_EXPLORER; private static final String PREF_CATEGORY = PreferenceConstants.APPEARANCE_CATEGORY; private SelectionButtonDialogField fShowMethodReturnType; private SelectionButtonDialogField fShowCategory; private SelectionButtonDialogField fCompressPackageNames; private SelectionButtonDialogField fAbbreviatePackageNames; private SelectionButtonDialogField fStackBrowsingViewsVertically; private SelectionButtonDialogField fShowMembersInPackageView; private StringDialogField fPackageNamePattern; private StringDialogField fAbbreviatePackageNamePattern; private SelectionButtonDialogField fFoldPackagesInPackageExplorer; private SelectionButtonDialogField fShowMethodTypeParameters; public AppearancePreferencePage() { setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore()); setDescription(PreferencesMessages.AppearancePreferencePage_description); IDialogFieldListener listener = new IDialogFieldListener() { public void dialogFieldChanged(DialogField field) { doDialogFieldChanged(field); } }; fShowMethodReturnType = new SelectionButtonDialogField(SWT.CHECK); fShowMethodReturnType.setDialogFieldListener(listener); fShowMethodReturnType.setLabelText(PreferencesMessages.AppearancePreferencePage_methodreturntype_label); fShowMethodTypeParameters = new SelectionButtonDialogField(SWT.CHECK); fShowMethodTypeParameters.setDialogFieldListener(listener); fShowMethodTypeParameters.setLabelText(PreferencesMessages.AppearancePreferencePage_methodtypeparams_label); fShowCategory = new SelectionButtonDialogField(SWT.CHECK); fShowCategory.setDialogFieldListener(listener); fShowCategory.setLabelText(PreferencesMessages.AppearancePreferencePage_showCategory_label); fShowMembersInPackageView = new SelectionButtonDialogField(SWT.CHECK); fShowMembersInPackageView.setDialogFieldListener(listener); fShowMembersInPackageView .setLabelText(PreferencesMessages.AppearancePreferencePage_showMembersInPackagesView); fStackBrowsingViewsVertically = new SelectionButtonDialogField(SWT.CHECK); fStackBrowsingViewsVertically.setDialogFieldListener(listener); fStackBrowsingViewsVertically.setLabelText( PreferencesMessages.AppearancePreferencePage_stackViewsVerticallyInTheJavaBrowsingPerspective); fFoldPackagesInPackageExplorer = new SelectionButtonDialogField(SWT.CHECK); fFoldPackagesInPackageExplorer.setDialogFieldListener(listener); fFoldPackagesInPackageExplorer.setLabelText(PreferencesMessages.AppearancePreferencePage_foldEmptyPackages); fCompressPackageNames = new SelectionButtonDialogField(SWT.CHECK); fCompressPackageNames.setDialogFieldListener(listener); fCompressPackageNames.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePatternEnable_label); fPackageNamePattern = new StringDialogField(); fPackageNamePattern.setDialogFieldListener(listener); fPackageNamePattern.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePattern_label); fAbbreviatePackageNames = new SelectionButtonDialogField(SWT.CHECK); fAbbreviatePackageNames.setDialogFieldListener(listener); fAbbreviatePackageNames .setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePatternAbbreviateEnable_label); fAbbreviatePackageNamePattern = new TextBoxDialogField(); fAbbreviatePackageNamePattern.setDialogFieldListener(listener); fAbbreviatePackageNamePattern .setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePatternAbbreviate_label); } private void initFields() { IPreferenceStore prefs = getPreferenceStore(); fShowMethodReturnType.setSelection(prefs.getBoolean(PREF_METHOD_RETURNTYPE)); fShowMethodTypeParameters.setSelection(prefs.getBoolean(PREF_METHOD_TYPEPARAMETERS)); fShowMembersInPackageView.setSelection(prefs.getBoolean(SHOW_CU_CHILDREN)); fShowCategory.setSelection(prefs.getBoolean(PREF_CATEGORY)); fStackBrowsingViewsVertically.setSelection(prefs.getBoolean(STACK_BROWSING_VIEWS_VERTICALLY)); fPackageNamePattern.setText(prefs.getString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW)); fCompressPackageNames.setSelection(prefs.getBoolean(PREF_COMPRESS_PACKAGE_NAMES)); fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected()); fAbbreviatePackageNamePattern.setText(prefs.getString(PREF_PKG_NAME_ABBREVIATION_PATTERN_FOR_PKG_VIEW)); fAbbreviatePackageNames.setSelection(prefs.getBoolean(PREF_ABBREVIATE_PACKAGE_NAMES)); doDialogFieldChanged(fAbbreviatePackageNames); fAbbreviatePackageNamePattern.setEnabled(fAbbreviatePackageNames.isSelected()); fFoldPackagesInPackageExplorer.setSelection(prefs.getBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER)); } /* * @see PreferencePage#createControl(Composite) */ @Override public void createControl(Composite parent) { super.createControl(parent); PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.APPEARANCE_PREFERENCE_PAGE); } /* * @see PreferencePage#createContents(Composite) */ @Override protected Control createContents(Composite parent) { initializeDialogUnits(parent); int nColumns = 1; Composite result = new Composite(parent, SWT.NONE); result.setFont(parent.getFont()); GridLayout layout = new GridLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = 0; layout.numColumns = nColumns; result.setLayout(layout); fShowMethodReturnType.doFillIntoGrid(result, nColumns); fShowMethodTypeParameters.doFillIntoGrid(result, nColumns); fShowCategory.doFillIntoGrid(result, nColumns); fShowMembersInPackageView.doFillIntoGrid(result, nColumns); fFoldPackagesInPackageExplorer.doFillIntoGrid(result, nColumns); new Separator().doFillIntoGrid(result, nColumns); fCompressPackageNames.doFillIntoGrid(result, nColumns); fPackageNamePattern.doFillIntoGrid(result, 2); LayoutUtil.setHorizontalIndent(fPackageNamePattern.getLabelControl(null), AbstractConfigurationBlock.INDENT); Text packageNamePatternControl = fPackageNamePattern.getTextControl(null); LayoutUtil.setHorizontalIndent(packageNamePatternControl, AbstractConfigurationBlock.INDENT); LayoutUtil.setHorizontalGrabbing(packageNamePatternControl); LayoutUtil.setWidthHint(fPackageNamePattern.getLabelControl(null), convertWidthInCharsToPixels(65)); new Separator().doFillIntoGrid(result, nColumns); fAbbreviatePackageNames.doFillIntoGrid(result, nColumns); fAbbreviatePackageNamePattern.doFillIntoGrid(result, 2); LayoutUtil.setHorizontalIndent(fAbbreviatePackageNamePattern.getLabelControl(null), AbstractConfigurationBlock.INDENT); Text abbreviatePackageNamePatternControl = fAbbreviatePackageNamePattern.getTextControl(null); LayoutUtil.setHorizontalIndent(abbreviatePackageNamePatternControl, AbstractConfigurationBlock.INDENT); LayoutUtil.setHorizontalGrabbing(abbreviatePackageNamePatternControl); LayoutUtil.setWidthHint(fAbbreviatePackageNamePattern.getLabelControl(null), convertWidthInCharsToPixels(65)); LayoutUtil.setVerticalGrabbing(abbreviatePackageNamePatternControl); LayoutUtil.setHeightHint(abbreviatePackageNamePatternControl, convertHeightInCharsToPixels(3)); new Separator().doFillIntoGrid(result, nColumns); fStackBrowsingViewsVertically.doFillIntoGrid(result, nColumns); String noteTitle = PreferencesMessages.AppearancePreferencePage_note; String noteMessage = PreferencesMessages.AppearancePreferencePage_preferenceOnlyEffectiveForNewPerspectives; Composite noteControl = createNoteComposite(JFaceResources.getDialogFont(), result, noteTitle, noteMessage); GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gd.horizontalSpan = 2; gd.horizontalIndent = AbstractConfigurationBlock.INDENT; noteControl.setLayoutData(gd); initFields(); Dialog.applyDialogFont(result); return result; } private void doDialogFieldChanged(DialogField field) { if (field == fCompressPackageNames) fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected()); if (field == fAbbreviatePackageNames) fAbbreviatePackageNamePattern.setEnabled(fAbbreviatePackageNames.isSelected()); updateStatus(getValidationStatus()); } private IStatus getValidationStatus() { if (fAbbreviatePackageNames.isSelected() && JavaElementLabelComposer .parseAbbreviationPattern(fAbbreviatePackageNamePattern.getText()) == null) { return new StatusInfo(IStatus.ERROR, PreferencesMessages.AppearancePreferencePage_packageNameAbbreviationPattern_error_isInvalid); } if (fCompressPackageNames.isSelected() && fPackageNamePattern.getText().equals("")) //$NON-NLS-1$ return new StatusInfo(IStatus.ERROR, PreferencesMessages.AppearancePreferencePage_packageNameCompressionPattern_error_isEmpty); return new StatusInfo(); } private void updateStatus(IStatus status) { setValid(!status.matches(IStatus.ERROR)); StatusUtil.applyToStatusLine(this, status); } /* * @see IWorkbenchPreferencePage#init(IWorkbench) */ public void init(IWorkbench workbench) { } /* * @see IPreferencePage#performOk() */ @Override public boolean performOk() { IPreferenceStore prefs = getPreferenceStore(); prefs.setValue(PREF_METHOD_RETURNTYPE, fShowMethodReturnType.isSelected()); prefs.setValue(PREF_METHOD_TYPEPARAMETERS, fShowMethodTypeParameters.isSelected()); prefs.setValue(PREF_CATEGORY, fShowCategory.isSelected()); prefs.setValue(SHOW_CU_CHILDREN, fShowMembersInPackageView.isSelected()); prefs.setValue(STACK_BROWSING_VIEWS_VERTICALLY, fStackBrowsingViewsVertically.isSelected()); prefs.setValue(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW, fPackageNamePattern.getText()); prefs.setValue(PREF_COMPRESS_PACKAGE_NAMES, fCompressPackageNames.isSelected()); prefs.setValue(PREF_PKG_NAME_ABBREVIATION_PATTERN_FOR_PKG_VIEW, fAbbreviatePackageNamePattern.getText()); prefs.setValue(PREF_ABBREVIATE_PACKAGE_NAMES, fAbbreviatePackageNames.isSelected()); prefs.setValue(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER, fFoldPackagesInPackageExplorer.isSelected()); JavaPlugin.flushInstanceScope(); return super.performOk(); } /* * @see PreferencePage#performDefaults() */ @Override protected void performDefaults() { IPreferenceStore prefs = getPreferenceStore(); fShowMethodReturnType.setSelection(prefs.getDefaultBoolean(PREF_METHOD_RETURNTYPE)); fShowMethodTypeParameters.setSelection(prefs.getDefaultBoolean(PREF_METHOD_TYPEPARAMETERS)); fShowCategory.setSelection(prefs.getDefaultBoolean(PREF_CATEGORY)); fShowMembersInPackageView.setSelection(prefs.getDefaultBoolean(SHOW_CU_CHILDREN)); fStackBrowsingViewsVertically.setSelection(prefs.getDefaultBoolean(STACK_BROWSING_VIEWS_VERTICALLY)); fPackageNamePattern.setText(prefs.getDefaultString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW)); fCompressPackageNames.setSelection(prefs.getDefaultBoolean(PREF_COMPRESS_PACKAGE_NAMES)); fAbbreviatePackageNamePattern .setText(prefs.getDefaultString(PREF_PKG_NAME_ABBREVIATION_PATTERN_FOR_PKG_VIEW)); fAbbreviatePackageNames.setSelection(prefs.getDefaultBoolean(PREF_ABBREVIATE_PACKAGE_NAMES)); fFoldPackagesInPackageExplorer .setSelection(prefs.getDefaultBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER)); super.performDefaults(); } }