Mercurial > projects > dwt-linux
annotate dwt/internal/Converter.d @ 10:63c023465156
moved from org.eclipse.swt to dwt
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 05 Jan 2008 17:58:37 +0100 |
| parents | ad2b69216039 |
| children | 8cec8f536af3 |
| rev | line source |
|---|---|
| 0 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2004 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 *******************************************************************************/ | |
|
10
63c023465156
moved from org.eclipse.swt to dwt
Frank Benoit <benoit@tionex.de>
parents:
9
diff
changeset
|
11 module dwt.internal.Converter; |
| 0 | 12 |
| 13 | |
|
10
63c023465156
moved from org.eclipse.swt to dwt
Frank Benoit <benoit@tionex.de>
parents:
9
diff
changeset
|
14 //import dwt.internal.gtk.OS; |
| 0 | 15 import tango.stdc.stringz; |
| 16 | |
| 17 extern(C) { | |
| 18 struct GError{}; | |
| 19 char* g_utf16_to_utf8 ( wchar *str, | |
| 20 int len, | |
| 21 int *items_read, | |
| 22 int *items_written, | |
| 23 GError **error); | |
| 24 wchar* g_utf8_to_utf16 ( char *str, | |
| 25 int len, | |
| 26 int *items_read, | |
| 27 int *items_written, | |
| 28 GError **error); | |
| 29 void g_free (void* ptr ); | |
| 30 } | |
| 31 | |
| 32 /** | |
| 33 * This class implements the conversions between unicode characters | |
| 34 * and the <em>platform supported</em> representation for characters. | |
| 35 * <p> | |
| 36 * Note that, unicode characters which can not be found in the platform | |
| 37 * encoding will be converted to an arbitrary platform specific character. | |
| 38 * </p> | |
| 39 */ | |
| 40 public final class Converter { | |
| 41 public static const char [] NullByteArray = "\0"; | |
| 42 public static const char [] EmptyByteArray = ""; | |
| 43 public static const wchar [] EmptyCharArray = ""; | |
| 44 | |
| 45 /** | |
| 46 * Returns the default code page for the platform where the | |
| 47 * application is currently running. | |
| 48 * | |
| 49 * @return the default code page | |
| 50 */ | |
| 51 public static char[] defaultCodePage () { | |
| 52 return "UTF8"; | |
| 53 } | |
| 54 | |
| 55 public static wchar [] mbcsToWcs (char[] codePage, char [] buffer) { | |
| 56 int items_written; | |
| 57 wchar* ptr = g_utf8_to_utf16 (toStringz(buffer), buffer.length, null, &items_written, null); | |
| 58 if (!ptr){ | |
| 59 return EmptyCharArray; | |
| 60 } | |
| 61 wchar[] chars = ptr[ 0 .. items_written].dup; | |
| 62 g_free (ptr); | |
| 63 return chars; | |
| 64 } | |
| 65 | |
| 4 | 66 /+ // only difference with String vs. char[] arg, so no diff in dwt |
| 0 | 67 public static char [] wcsToMbcs (char[] codePage, String str, bool terminate) { |
| 68 int length = str.length (); | |
| 69 wchar [] buffer = new wchar [length]; | |
| 70 string.getChars (0, length, buffer, 0); | |
| 71 return wcsToMbcs (codePage, buffer, terminate); | |
| 72 } | |
| 73 +/ | |
| 74 | |
| 75 public static char [] wcsToMbcs (char[] codePage, wchar [] buffer, bool terminate) { | |
| 76 int items_read, items_written; | |
| 77 /* | |
| 78 * Note that g_utf16_to_utf8() stops converting | |
| 79 * when it finds the first NULL. | |
| 80 */ | |
| 81 char* ptr = g_utf16_to_utf8 (toString16z(buffer), buffer.length, & items_read, & items_written, null); | |
| 82 if (!ptr) { | |
| 83 return terminate ? NullByteArray : EmptyByteArray; | |
| 84 } | |
| 85 char [] bytes = new char [items_written + (terminate ? 1 : 0)]; | |
| 86 bytes[ 0 .. items_written ] = ptr[ 0 .. items_written ]; | |
| 87 if( terminate ){ | |
| 88 bytes[ items_written ] = 0; | |
| 89 } | |
| 90 g_free (ptr); | |
| 91 return bytes; | |
| 92 } | |
| 93 | |
| 94 } |