| /******************************************************************************* |
| * 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 org.eclipse.jface.text; |
| |
| |
| /** |
| * Defines the target for text operations. <code>canDoOperation</code> informs |
| * the clients about the ability of the target to perform the specified |
| * operation at the current point in time. <code>doOperation</code> executes |
| * the specified operation. |
| * <p> |
| * In order to provide backward compatibility for clients of |
| * <code>ITextOperationTarget</code>, extension interfaces are used as a |
| * means of evolution. The following extension interfaces exist: |
| * <ul> |
| * <li>{@link org.eclipse.jface.text.ITextOperationTargetExtension} since |
| * version 2.0 introducing text operation enabling/disabling.</li> |
| * </ul> |
| * |
| * @see org.eclipse.jface.text.ITextOperationTargetExtension |
| */ |
| public interface ITextOperationTarget { |
| |
| |
| /** |
| * Text operation code for undoing the last edit command. |
| */ |
| static final int UNDO= 1; |
| |
| /** |
| * Text operation code for redoing the last undone edit command. |
| */ |
| static final int REDO= 2; |
| |
| /** |
| * Text operation code for moving the selected text to the clipboard. |
| */ |
| static final int CUT= 3; |
| |
| /** |
| * Text operation code for copying the selected text to the clipboard. |
| */ |
| static final int COPY= 4; |
| |
| /** |
| * Text operation code for inserting the clipboard content at the |
| * current position. |
| */ |
| static final int PASTE= 5; |
| |
| /** |
| * Text operation code for deleting the selected text or if selection |
| * is empty the character at the right of the current position. |
| */ |
| static final int DELETE= 6; |
| |
| /** |
| * Text operation code for selecting the complete text. |
| */ |
| static final int SELECT_ALL= 7; |
| |
| /** |
| * Text operation code for shifting the selected text block to the right. |
| */ |
| static final int SHIFT_RIGHT= 8; |
| |
| /** |
| * Text operation code for shifting the selected text block to the left. |
| */ |
| static final int SHIFT_LEFT= 9; |
| |
| /** |
| * Text operation code for printing the complete text. |
| */ |
| static final int PRINT= 10; |
| |
| /** |
| * Text operation code for prefixing the selected text block. |
| */ |
| static final int PREFIX= 11; |
| |
| /** |
| * Text operation code for removing the prefix from the selected text block. |
| */ |
| static final int STRIP_PREFIX= 12; |
| |
| |
| /** |
| * Returns whether the operation specified by the given operation code |
| * can be performed. |
| * |
| * @param operation the operation code |
| * @return <code>true</code> if the specified operation can be performed |
| */ |
| boolean canDoOperation(int operation); |
| |
| /** |
| * Performs the operation specified by the operation code on the target. |
| * <code>doOperation</code> must only be called if <code>canDoOperation</code> |
| * returns <code>true</code>. |
| * |
| * @param operation the operation code |
| */ |
| void doOperation(int operation); |
| } |