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 java.util.ArrayList; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PlatformUI; import descent.ui.PreferenceConstants; import descent.internal.ui.IJavaHelpContextIds; import descent.internal.ui.JavaPlugin; import descent.internal.ui.dialogs.OptionalMessageDialog; import descent.internal.ui.refactoring.RefactoringSavePreferences; import descent.internal.ui.util.SWTUtil; /* * The page for setting general java plugin preferences. * See PreferenceConstants to access or change these values through public API. */ public class JavaBasePreferencePage extends PreferencePage implements IWorkbenchPreferencePage { private static final String OPEN_TYPE_HIERARCHY = PreferenceConstants.OPEN_TYPE_HIERARCHY; private static final String OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE = PreferenceConstants.OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE; private static final String OPEN_TYPE_HIERARCHY_IN_VIEW_PART = PreferenceConstants.OPEN_TYPE_HIERARCHY_IN_VIEW_PART; private static final String DOUBLE_CLICK = PreferenceConstants.DOUBLE_CLICK; private static final String DOUBLE_CLICK_GOES_INTO = PreferenceConstants.DOUBLE_CLICK_GOES_INTO; private static final String DOUBLE_CLICK_EXPANDS = PreferenceConstants.DOUBLE_CLICK_EXPANDS; private ArrayList fCheckBoxes; private ArrayList fRadioButtons; private ArrayList fTextControls; public JavaBasePreferencePage() { super(); setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore()); setDescription(PreferencesMessages.JavaBasePreferencePage_description); fRadioButtons = new ArrayList(); fCheckBoxes = new ArrayList(); fTextControls = new ArrayList(); } /* * @see IWorkbenchPreferencePage#init(IWorkbench) */ public void init(IWorkbench workbench) { } /* * @see PreferencePage#createControl(Composite) */ public void createControl(Composite parent) { super.createControl(parent); PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.JAVA_BASE_PREFERENCE_PAGE); } private Button addRadioButton(Composite parent, String label, String key, String value) { GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); Button button = new Button(parent, SWT.RADIO); button.setText(label); button.setData(new String[] { key, value }); button.setLayoutData(gd); button.setSelection(value.equals(getPreferenceStore().getString(key))); fRadioButtons.add(button); return button; } private Button addCheckBox(Composite parent, String label, String key) { GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); Button button = new Button(parent, SWT.CHECK); button.setText(label); button.setData(key); button.setLayoutData(gd); button.setSelection(getPreferenceStore().getBoolean(key)); fCheckBoxes.add(button); return button; } protected Control createContents(Composite parent) { initializeDialogUnits(parent); Composite result = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = 0; layout.verticalSpacing = convertVerticalDLUsToPixels(10); layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); result.setLayout(layout); // new Label(composite, SWT.NONE); // spacer // Group linkSettings= new Group(result, SWT.NONE); // linkSettings.setLayout(new GridLayout()); // linkSettings.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // linkSettings.setText(PreferencesMessages.getString("JavaBasePreferencePage.linkSettings.text")); //$NON-NLS-1$ //addCheckBox(linkSettings, PreferencesMessages.getString("JavaBasePreferencePage.linkJavaBrowsingViewsCheckbox.text"), LINK_BROWSING_VIEW_TO_EDITOR); //$NON-NLS-1$ //addCheckBox(linkSettings, PreferencesMessages.getString("JavaBasePreferencePage.linkPackageView"), LINK_PACKAGES_TO_EDITOR); //$NON-NLS-1$ //addCheckBox(linkSettings, PreferencesMessages.getString("JavaBasePreferencePage.linkTypeHierarchy"), LINK_TYPEHIERARCHY_TO_EDITOR); //$NON-NLS-1$ // new Label(result, SWT.NONE); // spacer Group doubleClickGroup = new Group(result, SWT.NONE); doubleClickGroup.setLayout(new GridLayout()); doubleClickGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); doubleClickGroup.setText(PreferencesMessages.JavaBasePreferencePage_doubleclick_action); addRadioButton(doubleClickGroup, PreferencesMessages.JavaBasePreferencePage_doubleclick_gointo, DOUBLE_CLICK, DOUBLE_CLICK_GOES_INTO); addRadioButton(doubleClickGroup, PreferencesMessages.JavaBasePreferencePage_doubleclick_expand, DOUBLE_CLICK, DOUBLE_CLICK_EXPANDS); // new Label(result, SWT.NONE); // spacer Group typeHierarchyGroup = new Group(result, SWT.NONE); typeHierarchyGroup.setLayout(new GridLayout()); typeHierarchyGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); typeHierarchyGroup.setText(PreferencesMessages.JavaBasePreferencePage_openTypeHierarchy); addRadioButton(typeHierarchyGroup, PreferencesMessages.JavaBasePreferencePage_inPerspective, OPEN_TYPE_HIERARCHY, OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE); addRadioButton(typeHierarchyGroup, PreferencesMessages.JavaBasePreferencePage_inView, OPEN_TYPE_HIERARCHY, OPEN_TYPE_HIERARCHY_IN_VIEW_PART); Group refactoringGroup = new Group(result, SWT.NONE); refactoringGroup.setLayout(new GridLayout()); refactoringGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); refactoringGroup.setText(PreferencesMessages.JavaBasePreferencePage_refactoring_title); addCheckBox(refactoringGroup, PreferencesMessages.JavaBasePreferencePage_refactoring_auto_save, RefactoringSavePreferences.PREF_SAVE_ALL_EDITORS); Group group = new Group(result, SWT.NONE); group.setLayout(new GridLayout()); group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); group.setText(PreferencesMessages.JavaBasePreferencePage_search); addCheckBox(group, PreferencesMessages.JavaBasePreferencePage_search_small_menu, PreferenceConstants.SEARCH_USE_REDUCED_MENU); layout = new GridLayout(); layout.numColumns = 2; Group dontAskGroup = new Group(result, SWT.NONE); dontAskGroup.setLayout(layout); dontAskGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); dontAskGroup.setText(PreferencesMessages.JavaBasePreferencePage_dialogs); Label label = new Label(dontAskGroup, SWT.WRAP); label.setText(PreferencesMessages.JavaBasePreferencePage_do_not_hide_description); GridData data = new GridData(GridData.FILL, GridData.CENTER, true, false); data.widthHint = convertVerticalDLUsToPixels(50); label.setLayoutData(data); Button clearButton = new Button(dontAskGroup, SWT.PUSH); clearButton.setText(PreferencesMessages.JavaBasePreferencePage_do_not_hide_button); clearButton.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, false, false)); clearButton.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { unhideAllDialogs(); } public void widgetDefaultSelected(SelectionEvent e) { unhideAllDialogs(); } }); SWTUtil.setButtonDimensionHint(clearButton); Dialog.applyDialogFont(result); return result; } protected final void unhideAllDialogs() { OptionalMessageDialog.clearAllRememberedStates(); MessageDialog.openInformation(getShell(), PreferencesMessages.JavaBasePreferencePage_do_not_hide_dialog_title, PreferencesMessages.JavaBasePreferencePage_do_not_hide_dialog_message); } /* * @see PreferencePage#performDefaults() */ protected void performDefaults() { IPreferenceStore store = getPreferenceStore(); for (int i = 0; i < fCheckBoxes.size(); i++) { Button button = (Button) fCheckBoxes.get(i); String key = (String) button.getData(); button.setSelection(store.getDefaultBoolean(key)); } for (int i = 0; i < fRadioButtons.size(); i++) { Button button = (Button) fRadioButtons.get(i); String[] info = (String[]) button.getData(); button.setSelection(info[1].equals(store.getDefaultString(info[0]))); } for (int i = 0; i < fTextControls.size(); i++) { Text text = (Text) fTextControls.get(i); String key = (String) text.getData(); text.setText(store.getDefaultString(key)); } super.performDefaults(); } /* * @see IPreferencePage#performOk() */ public boolean performOk() { IPreferenceStore store = getPreferenceStore(); for (int i = 0; i < fCheckBoxes.size(); i++) { Button button = (Button) fCheckBoxes.get(i); String key = (String) button.getData(); store.setValue(key, button.getSelection()); } for (int i = 0; i < fRadioButtons.size(); i++) { Button button = (Button) fRadioButtons.get(i); if (button.getSelection()) { String[] info = (String[]) button.getData(); store.setValue(info[0], info[1]); } } for (int i = 0; i < fTextControls.size(); i++) { Text text = (Text) fTextControls.get(i); String key = (String) text.getData(); store.setValue(key, text.getText()); } JavaPlugin.getDefault().savePluginPreferences(); return super.performOk(); } }