Java tutorial
/****************************************************************************** * Copyright (c) 2002, 2005 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 org.eclipse.gmf.runtime.diagram.ui.internal.dialogs; import java.util.ArrayList; import org.eclipse.jface.preference.IPersistentPreferenceStore; import org.eclipse.jface.preference.IPreferenceNode; import org.eclipse.jface.preference.IPreferencePage; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.preference.PreferenceManager; import org.eclipse.jface.preference.PreferenceNode; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Shell; import org.eclipse.gmf.runtime.diagram.ui.internal.pagesetup.ILabels; import org.eclipse.gmf.runtime.diagram.ui.internal.pagesetup.PageSetupWidgetFactory; import org.eclipse.gmf.runtime.diagram.ui.internal.properties.WorkspaceViewerProperties; import org.eclipse.gmf.runtime.diagram.ui.preferences.PrintingPreferencePage; /** * PSSelectionConfigurationBlock implements part of PSDialog allowing the user to toggle * between Diagram or Workspace settings. It consists of the following controls: * * 1. Use workspace settings radio button * 2. Use diagram settings radio button * 3. Configure workspace settings button * * @author etworkow */ public class PageSetupSelectionConfigBlock implements ILabels { private Button fButtonUseWorkspaceSettings, fButtonConfigure, fButtonUseDiagramSettings; private Shell fShell; /** Read preference values from preference store and uses them to initialize all controls. */ private Initializer fInitialier; /** Saves preference values in preference store. */ private Persistor fPersistor; /** List of all controls. */ private ArrayList fControls = new ArrayList(); /** Store holding all preferences */ private IPreferenceStore fStore; /** * Store holding the global preferences if the user chooses to configure the * global page setting preferences */ private IPreferenceStore fGlobalStore; /** Parent dialog hosting thise selection configuration block. */ private PageSetupDialog fParentDialog; /** * Creates an instance of PageSetupSelectionConfigBlock. * * @param store * Preference store used to initialize * PSSelectionConfigurationBlock * @param globalStore * the global preference store used if the user chooses to * configure the global page setting preferences from this dialog * @param dialog */ public PageSetupSelectionConfigBlock(IPreferenceStore store, IPreferenceStore globalStore, PageSetupDialog dialog) { fInitialier = new Initializer(this); fPersistor = new Persistor(this); fStore = store; fGlobalStore = globalStore; fParentDialog = dialog; } /** * Create composite with three buttons allowing the user to toggle * between diagram and workspace setting. * * @param parent Composite holding the buttons * @return Control composite with buttons */ protected Control createContents(Composite parent) { Composite selectionComposite = new Composite(parent, SWT.NULL); selectionComposite.setLayout(new GridLayout(2, true)); createSelectionGroup(selectionComposite); fShell = parent.getShell(); fInitialier.initSelectionControls(); return selectionComposite; } /** * Saves preferences in a preference store. */ protected void save() { fPersistor.saveConfigBlockControlValues(); } /** * Create part of PSDialog allowing the user to choose between diagram and workspace settings. */ private void createSelectionGroup(Composite composite) { // Add two radio buttons to the group fButtonUseWorkspaceSettings = PageSetupWidgetFactory.createRadioButton(composite, LABEL_BUTTON_USE_WORKSPACE_SETTINGS); fButtonConfigure = PageSetupWidgetFactory.createPushButton(composite, LABEL_BUTTON_CONFIGURE_WORKSPACE_SETTINGS); fButtonUseDiagramSettings = PageSetupWidgetFactory.createRadioButton(composite, LABEL_BUTTON_USE_DIAGRAM_SETTINGS); if (fGlobalStore == null || !(fGlobalStore instanceof IPersistentPreferenceStore)) { fButtonUseWorkspaceSettings.setEnabled(false); } addUseWorkspaceSettingsListener(); addUseDiagramSettingsListener(); addConfigureWorkspaceSettingsListener(); fControls.add(fButtonUseWorkspaceSettings); fControls.add(fButtonConfigure); fControls.add(fButtonUseDiagramSettings); } /** * Attach selection handling logic to 'Use workspace settings' button. */ private void addUseWorkspaceSettingsListener() { fButtonUseWorkspaceSettings.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { fParentDialog.getConfigurationBlock().disableAllControls(); fButtonConfigure.setEnabled(true); fParentDialog.getOkButton().setEnabled(true); } public void widgetDefaultSelected(SelectionEvent e) { // TODO Auto-generated method stub } }); } /** * Attach selection handling logic to 'Use diagram settings' button. */ private void addUseDiagramSettingsListener() { fButtonUseDiagramSettings.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { fParentDialog.getConfigurationBlock().enableAllControls(); fButtonConfigure.setEnabled(false); fParentDialog.getConfigurationBlock().setOkButtonEnableStatus(); } public void widgetDefaultSelected(SelectionEvent e) { // TODO Auto-generated method stub } }); } /** * Attach selection handling logic to 'Configure workspace settings' button. */ private void addConfigureWorkspaceSettingsListener() { fButtonConfigure.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { // Display Printing preference page allowing the user to configure global printing settings IPreferencePage page = new PrintingPreferencePage(fGlobalStore); page.setTitle(ILabels.LABEL_PREFERENCE_PAGE_PRINTING); IPreferenceNode targetNode = new PreferenceNode(ID_PAGE_SETUP_PREF_PAGE, page); PreferenceManager manager = new PreferenceManager(); manager.addToRoot(targetNode); PreferenceDialog dialog = new PreferenceDialog(fShell, manager); dialog.create(); dialog.setMessage(TITLE_PAGE_SETUP_TAB_ITEM); dialog.open(); } public void widgetDefaultSelected(SelectionEvent e) { // TODO Auto-generated method stub } }); } /** * Return specified control. */ public Control getControl(PageSetupControlType controlType) { if (controlType.equals(PageSetupControlType.BUTTON_USE_WORKSPACE_SETTINGS)) return fButtonUseWorkspaceSettings; else if (controlType.equals(PageSetupControlType.BUTTON_USE_DIAGRAM_SETTINGS)) return fButtonUseDiagramSettings; else if (controlType.equals(PageSetupControlType.BUTTON_CONFIGURE_WORKSPACE_SETTINGS)) return fButtonConfigure; else return null; } /** * Calling this method will disable the 'Configure workspace settings' button. */ public void disableButtonConfigure() { fButtonConfigure.setEnabled(false); } /** * Calling this method will enable the 'Configure workspace settings' button. */ public void enableButtonConfigure() { fButtonConfigure.setEnabled(true); } // INITIALIZER private class Initializer { private PageSetupSelectionConfigBlock fBlockPrint; public Initializer(PageSetupSelectionConfigBlock configBlock) { fBlockPrint = configBlock; } public void initSelectionControls() { initRadioButtons(); } private void initRadioButtons() { initRadioButton(fBlockPrint, PageSetupControlType.BUTTON_USE_WORKSPACE_SETTINGS, WorkspaceViewerProperties.PREF_USE_WORKSPACE_SETTINGS); initRadioButton(fBlockPrint, PageSetupControlType.BUTTON_USE_DIAGRAM_SETTINGS, WorkspaceViewerProperties.PREF_USE_DIAGRAM_SETTINGS); } private void initRadioButton(PageSetupSelectionConfigBlock block, PageSetupControlType controlType, String key) { Button button = (Button) block.getControl(controlType); button.setSelection(fStore.getBoolean(key)); } } // PERSISTOR private class Persistor { private PageSetupSelectionConfigBlock fBlockPrint; public Persistor(PageSetupSelectionConfigBlock configBlock) { fBlockPrint = configBlock; } public void saveConfigBlockControlValues() { saveConfigRadioButtonValues(); //fBlockPrint.emptyControlList(); } private void saveConfigRadioButtonValues() { saveRadioButton(fBlockPrint, PageSetupControlType.BUTTON_USE_WORKSPACE_SETTINGS, WorkspaceViewerProperties.PREF_USE_WORKSPACE_SETTINGS); saveRadioButton(fBlockPrint, PageSetupControlType.BUTTON_USE_DIAGRAM_SETTINGS, WorkspaceViewerProperties.PREF_USE_DIAGRAM_SETTINGS); } private void saveRadioButton(PageSetupSelectionConfigBlock block, PageSetupControlType controlType, String key) { Button button = (Button) block.getControl(controlType); fStore.setValue(key, button.getSelection()); } } }