| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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.ui.examples.multipageeditor; |
| |
| import java.io.StringWriter; |
| import java.text.Collator; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.StyledText; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.FontData; |
| import org.eclipse.swt.layout.FillLayout; |
| 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.FontDialog; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IEditorSite; |
| import org.eclipse.ui.IFileEditorInput; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.editors.text.TextEditor; |
| import org.eclipse.ui.ide.IDE; |
| import org.eclipse.ui.ide.IGotoMarker; |
| import org.eclipse.ui.part.MultiPageEditorPart; |
| |
| /** |
| * An example showing how to create a multi-page editor. |
| * This example has 3 pages: |
| * <ul> |
| * <li>page 0 contains a nested text editor. |
| * <li>page 1 allows you to change the font used in page 2 |
| * <li>page 2 shows the words in page 0 in sorted order |
| * </ul> |
| */ |
| public class MultiPageEditorExample extends MultiPageEditorPart implements |
| IGotoMarker { |
| |
| /** The text editor used in page 0. */ |
| private TextEditor editor; |
| |
| /** The index of the page containing the text editor */ |
| private int editorIndex = 0; |
| |
| /** The font chosen in page 1. */ |
| private Font font; |
| |
| /** The text widget used in page 2. */ |
| private StyledText text; |
| |
| /** |
| * Creates a multi-page editor example. |
| */ |
| public MultiPageEditorExample() { |
| super(); |
| } |
| |
| /** |
| * Creates page 0 of the multi-page editor, |
| * which contains a text editor. |
| */ |
| void createPage0() { |
| try { |
| editor = new TextEditor(); |
| editorIndex = addPage(editor, getEditorInput()); |
| setPageText(editorIndex, MessageUtil.getString("Source")); //$NON-NLS-1$ |
| } catch (PartInitException e) { |
| ErrorDialog |
| .openError( |
| getSite().getShell(), |
| MessageUtil.getString("ErrorCreatingNestedEditor"), null, e.getStatus()); //$NON-NLS-1$ |
| } |
| } |
| |
| /** |
| * Creates page 1 of the multi-page editor, |
| * which allows you to change the font used in page 2. |
| */ |
| void createPage1() { |
| |
| Composite composite = new Composite(getContainer(), SWT.NONE); |
| GridLayout layout = new GridLayout(); |
| composite.setLayout(layout); |
| layout.numColumns = 2; |
| |
| Button fontButton = new Button(composite, SWT.NONE); |
| GridData gd = new GridData(GridData.BEGINNING); |
| gd.horizontalSpan = 2; |
| fontButton.setLayoutData(gd); |
| fontButton.setText(MessageUtil.getString("ChangeFont")); //$NON-NLS-1$ |
| |
| fontButton.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent event) { |
| setFont(); |
| } |
| }); |
| |
| int index = addPage(composite); |
| setPageText(index, MessageUtil.getString("Properties")); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates page 2 of the multi-page editor, |
| * which shows the sorted text. |
| */ |
| void createPage2() { |
| Composite composite = new Composite(getContainer(), SWT.NONE); |
| FillLayout layout = new FillLayout(); |
| composite.setLayout(layout); |
| text = new StyledText(composite, SWT.H_SCROLL | SWT.V_SCROLL); |
| text.setEditable(false); |
| |
| int index = addPage(composite); |
| setPageText(index, MessageUtil.getString("Preview")); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates the pages of the multi-page editor. |
| */ |
| protected void createPages() { |
| createPage0(); |
| createPage1(); |
| createPage2(); |
| } |
| |
| /** |
| * Saves the multi-page editor's document. |
| */ |
| public void doSave(IProgressMonitor monitor) { |
| getEditor(0).doSave(monitor); |
| } |
| |
| /** |
| * Saves the multi-page editor's document as another file. |
| * Also updates the text for page 0's tab, and updates this multi-page editor's input |
| * to correspond to the nested editor's. |
| */ |
| public void doSaveAs() { |
| IEditorPart editor = getEditor(0); |
| editor.doSaveAs(); |
| setPageText(0, editor.getTitle()); |
| setInput(editor.getEditorInput()); |
| } |
| |
| /** |
| * The <code>MultiPageEditorExample</code> implementation of this method |
| * checks that the input is an instance of <code>IFileEditorInput</code>. |
| */ |
| public void init(IEditorSite site, IEditorInput editorInput) |
| throws PartInitException { |
| if (!(editorInput instanceof IFileEditorInput)) |
| throw new PartInitException(MessageUtil.getString("InvalidInput")); //$NON-NLS-1$ |
| super.init(site, editorInput); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IEditorPart. |
| */ |
| public boolean isSaveAsAllowed() { |
| return true; |
| } |
| |
| /** |
| * Calculates the contents of page 2 when the it is activated. |
| */ |
| protected void pageChange(int newPageIndex) { |
| super.pageChange(newPageIndex); |
| if (newPageIndex == 2) { |
| sortWords(); |
| } |
| } |
| |
| /** |
| * Sets the font related data to be applied to the text in page 2. |
| */ |
| void setFont() { |
| FontDialog fontDialog = new FontDialog(getSite().getShell()); |
| fontDialog.setFontList(text.getFont().getFontData()); |
| FontData fontData = fontDialog.open(); |
| if (fontData != null) { |
| if (font != null) |
| font.dispose(); |
| font = new Font(text.getDisplay(), fontData); |
| text.setFont(font); |
| } |
| } |
| |
| /** |
| * Sorts the words in page 0, and shows them in page 2. |
| */ |
| void sortWords() { |
| |
| String editorText = editor.getDocumentProvider().getDocument( |
| editor.getEditorInput()).get(); |
| |
| StringTokenizer tokenizer = new StringTokenizer(editorText, |
| " \t\n\r\f!@#$%^&*()-_=+`~[]{};:'\",.<>/?|\\"); //$NON-NLS-1$ |
| ArrayList editorWords = new ArrayList(); |
| while (tokenizer.hasMoreTokens()) { |
| editorWords.add(tokenizer.nextToken()); |
| } |
| |
| Collections.sort(editorWords, Collator.getInstance()); |
| StringWriter displayText = new StringWriter(); |
| for (int i = 0; i < editorWords.size(); i++) { |
| displayText.write(((String) editorWords.get(i))); |
| displayText.write("\n"); //$NON-NLS-1$ |
| } |
| text.setText(displayText.toString()); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.ide.IGotoMarker |
| */ |
| public void gotoMarker(IMarker marker) { |
| setActivePage(editorIndex); |
| IDE.gotoMarker(editor, marker); |
| } |
| } |
