org.eclipse.swt.internal.BidiUtil source code

1 /*******************************************************************************
2  * Copyright (c) 2000, 2007 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  * Port to the D programming language:
11  *     Frank Benoit <benoit@tionex.de>
12  *******************************************************************************/
13 module org.eclipse.swt.internal.BidiUtil;
14 
15 import java.lang.all;
16 
17 import org.eclipse.swt.graphics.GC;
18 import org.eclipse.swt.widgets.Control;
19 import org.eclipse.swt.internal.gtk.OS;
20 
21 /*
22  * This class is supplied so that the StyledText code that supports bidi text (supported
23  * for win platforms) is not platform dependent.  Bidi text is not implemented on
24  * emulated platforms.
25  */
26 public class BidiUtil {
27     // Keyboard language types
28     public static const int KEYBOARD_NON_BIDI = 0;
29     public static const int KEYBOARD_BIDI = 1;
30 
31     // bidi rendering input flag constants, not used
32     // on emulated platforms
33     public static const int CLASSIN = 1;
34     public static const int LINKBEFORE = 2;
35     public static const int LINKAFTER = 4;
36 
37     // bidi rendering/ordering constants, not used on
38     // emulated platforms
39     public static const int CLASS_HEBREW = 2;
40     public static const int CLASS_ARABIC = 2;
41     public static const int CLASS_LOCALNUMBER = 4;
42     public static const int CLASS_LATINNUMBER = 5;
43     public static const int REORDER = 0;
44     public static const int LIGATE = 0;
45     public static const int GLYPHSHAPE = 0;
46 
47 /*
48  * Not implemented.
49  */
50 public static void addLanguageListener(GtkWidget* hwnd, Runnable runnable) {
51 }
52 public static void addLanguageListener (Control control, Runnable runnable) {
53 }
54 /*
55  * Not implemented.
56  *
57  */
58 public static void drawGlyphs(GC gc, char[] renderBuffer, int[] renderDx, int x, int y) {
59 }
60 /*
61  * Bidi not supported on emulated platforms.
62  *
63  */
64 public static bool isBidiPlatform() {
65     return false;
66 }
67 /*
68  * Not implemented.
69  */
70 public static bool isKeyboardBidi() {
71     return false;
72 }
73 /*
74  * Not implemented.
75  */
76 public static int getFontBidiAttributes(GC gc) {
77     return 0;
78 }
79 /*
80  *  Not implemented.
81  *
82  */
83 public static void getOrderInfo(GC gc, String text, int[] order, byte[] classBuffer, int flags, int [] offsets) {
84 }
85 /*
86  *  Not implemented. Returns null.
87  *
88  */
89 public static char[] getRenderInfo(GC gc, String text, int[] order, byte[] classBuffer, int[] dx, int flags, int[] offsets) {
90     return null;
91 }
92 /*
93  * Not implemented. Returns 0.
94  */
95 public static int getKeyboardLanguage() {
96     return 0;
97 }
98 /*
99  * Not implemented.
100  */
101 public static void removeLanguageListener(GtkWidget* hwnd) {
102 }
103 public static void removeLanguageListener (Control control) {
104 }
105 /*
106  * Not implemented.
107  */
108 public static void setKeyboardLanguage(int language) {
109 }
110 /*
111  * Not implemented.
112  */
113 public static bool setOrientation(GtkWidget* hwnd, int orientation) {
114     return false;
115 }
116 public static bool setOrientation (Control control, int orientation) {
117     return false;
118 }
119 }