| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.misc; |
| |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Workbook { |
| private TabFolder tabFolder; |
| private TabItem selectedTab; |
| /** |
| * Workbook constructor comment. |
| */ |
| public Workbook(Composite parent, int style) { |
| tabFolder = new TabFolder(parent, style); |
| |
| tabFolder.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent event) { |
| TabItem newSelectedTab = (TabItem) event.item; |
| if (selectedTab == newSelectedTab) // Do nothing if the selection did not change. |
| return; |
| |
| if (selectedTab != null && (!selectedTab.isDisposed())) { |
| WorkbookPage selectedPage = getWorkbookPage(selectedTab); |
| if (!selectedPage.deactivate()) { |
| tabFolder.setSelection(new TabItem[] {selectedTab}); |
| return; |
| } |
| } |
| |
| selectedTab = newSelectedTab; |
| WorkbookPage newSelectedPage = getWorkbookPage(newSelectedTab); |
| newSelectedPage.activate(); |
| |
| } |
| }); |
| |
| } |
| public WorkbookPage getSelectedPage() { |
| |
| int index = tabFolder.getSelectionIndex(); |
| if (index == -1) // When can this be -1 |
| return null; |
| |
| TabItem selectedItem = tabFolder.getItem(index); |
| |
| return (WorkbookPage)selectedItem.getData(); |
| } |
| public TabFolder getTabFolder() { |
| |
| return tabFolder; |
| |
| } |
| protected WorkbookPage getWorkbookPage(TabItem item) { |
| |
| try { |
| return (WorkbookPage) item.getData(); |
| } catch (ClassCastException e) { |
| return null; |
| } |
| } |
| public WorkbookPage[] getWorkbookPages() { |
| |
| TabItem[] tabItems = tabFolder.getItems(); |
| int nItems = tabItems.length; |
| WorkbookPage[] workbookPages = new WorkbookPage[nItems]; |
| for (int i = 0; i < nItems; i++) |
| workbookPages[i] = getWorkbookPage(tabItems[i]); |
| return workbookPages; |
| } |
| public void setSelectedPage (WorkbookPage workbookPage) |
| { |
| TabItem newSelectedTab = workbookPage.getTabItem(); |
| |
| if (selectedTab == newSelectedTab) |
| return; |
| |
| selectedTab = newSelectedTab; |
| workbookPage.activate(); |
| tabFolder.setSelection(new TabItem[] {newSelectedTab}); |
| |
| } |
| } |