| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.swt.dnd; |
| |
| |
| /** |
| * The class <code>TextTransfer</code> provides a platform specific mechanism |
| * for converting plain text represented as a java <code>String</code> |
| * to a platform specific representation of the data and vice versa. |
| * |
| * <p>An example of a java <code>String</code> containing plain text is shown |
| * below:</p> |
| * |
| * <code><pre> |
| * String textData = "Hello World"; |
| * </code></pre> |
| * |
| * <p>Note the <code>TextTransfer</code> does not change the content of the text |
| * data. For a better integration with the platform, the application should convert |
| * the line delimiters used in the text data to the standard line delimiter used by the |
| * platform. |
| * </p> |
| * |
| * @see Transfer |
| */ |
| public class TextTransfer extends ByteArrayTransfer { |
| |
| private static TextTransfer _instance = new TextTransfer(); |
| private static final String TYPENAME1 = "STRING\0"; |
| private static final int TYPEID1 = registerType(TYPENAME1); |
| private static final String TYPENAME2 = "text/plain\0"; |
| private static final int TYPEID2 = registerType(TYPENAME2); |
| private static final String TYPENAME3 = "text/text\0"; |
| private static final int TYPEID3 = registerType(TYPENAME3); |
| |
| private TextTransfer() { |
| } |
| /** |
| * Returns the singleton instance of the TextTransfer class. |
| * |
| * @return the singleton instance of the TextTransfer class |
| */ |
| public static TextTransfer getInstance () { |
| return _instance; |
| } |
| /** |
| * This implementation of <code>javaToNative</code> converts plain text |
| * represented by a java <code>String</code> to a platform specific representation. |
| * |
| * @param object a java <code>String</code> containing text |
| * @param transferData an empty <code>TransferData</code> object that will |
| * be filled in on return with the platform specific format of the data |
| * |
| * @see Transfer#nativeToJava |
| */ |
| public void javaToNative (Object object, TransferData transferData){ |
| } |
| /** |
| * This implementation of <code>nativeToJava</code> converts a platform specific |
| * representation of plain text to a java <code>String</code>. |
| * |
| * @param transferData the platform specific representation of the data to be converted |
| * @return a java <code>String</code> containing text if the conversion was successful; otherwise null |
| * |
| * @see Transfer#javaToNative |
| */ |
| public Object nativeToJava(TransferData transferData){ |
| return null; |
| } |
| protected String[] getTypeNames(){ |
| return new String[]{TYPENAME1, TYPENAME2, TYPENAME3}; |
| } |
| protected int[] getTypeIds(){ |
| return new int[]{TYPEID1, TYPEID2, TYPEID3}; |
| } |
| } |