blob: 2249eb2df9ce59783a80bd062eb1eb11bfb4ac36 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
package org.eclipse.swt.dnd;
/*
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
* This file is 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
*/
import org.eclipse.swt.internal.Converter;
import org.eclipse.swt.internal.carbon.OS;
/**
* 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. See
* <code>Transfer</code> for additional information.
*
* <p>An example of a java <code>String</code> containing plain text is shown
* below:</p>
*
* <code><pre>
* String textData = "Hello World";
* </code></pre>
*/
public class TextTransfer extends ByteArrayTransfer {
private static TextTransfer _instance = new TextTransfer();
private static final String TYPENAME1 = "TEXT";
private static final int TYPEID1 = OS.kScrapFlavorTypeText;
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.
* For additional information see <code>Transfer#javaToNative</code>.
*
* @param object a java <code>String</code> containing text
* @param transferData an empty <code>TransferData</code> object; this
* object will be filled in on return with the platform specific format of the data
*/
public void javaToNative (Object object, TransferData transferData){
if (object == null || !(object instanceof String)) {
transferData.result = -1;
return;
}
byte [] buffer = Converter.wcsToMbcs (null, (String)object, true);
super.javaToNative(buffer, transferData);
}
/**
* This implementation of <code>nativeToJava</code> converts a platform specific
* representation of plain text to a java <code>String</code>.
* For additional information see <code>Transfer#nativeToJava</code>.
*
* @param transferData the platform specific representation of the data to be
* been converted
* @return a java <code>String</code> containing text if the
* conversion was successful; otherwise null
*/
public Object nativeToJava(TransferData transferData){
// get byte array from super
byte[] buffer = (byte[])super.nativeToJava(transferData);
if (buffer == null) return null;
// convert byte array to a string
char [] unicode = Converter.mbcsToWcs (null, buffer);
String string = new String (unicode);
int end = string.indexOf('\0');
return (end == -1) ? string : string.substring(0, end);
}
protected String[] getTypeNames() {
return new String[] { TYPENAME1 };
}
protected int[] getTypeIds() {
return new int[] { TYPEID1 };
}
}
|
