/*******************************************************************************
 * Copyright (c) 2000, 2007 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
 *     
 * Port to the D programming language:
 *     Jacob Carlborg <doob@me.com>
 *******************************************************************************/
module dwt.internal.BidiUtil;

import dwt.dwthelper.utils;
import dwt.graphics.GC;
import dwt.widgets.Control;

import objc = dwt.internal.objc.runtime;

/*
 * This class is supplied so that the StyledText code that supports bidi text (supported
 * for win platforms) is not platform dependent.  Bidi text is not implemented on 
 * emulated platforms.
 */
public class BidiUtil {
    // Keyboard language types
    public static const int KEYBOARD_NON_BIDI = 0;
    public static const int KEYBOARD_BIDI = 1;

    // bidi rendering input flag constants, not used
    // on emulated platforms
    public static const int CLASSIN = 1;
    public static const int LINKBEFORE = 2;
    public static const int LINKAFTER = 4;

    // bidi rendering/ordering constants, not used on 
    // emulated platforms
    public static const int CLASS_HEBREW = 2;
    public static const int CLASS_ARABIC = 2;
    public static const int CLASS_LOCALNUMBER = 4;
    public static const int CLASS_LATINNUMBER = 5;  
    public static const int REORDER = 0;                
    public static const int LIGATE = 0;
    public static const int GLYPHSHAPE = 0;

/*
 * Not implemented.
 */
public static void addLanguageListener(objc.id hwnd, Runnable runnable) {
}
public static void addLanguageListener (Control control, Runnable runnable) {
}
/*
 * Not implemented.
 *
 */
public static void drawGlyphs(GC gc, char[] renderBuffer, int[] renderDx, int x, int y) {
}
/*
 * Bidi not supported on emulated platforms.
 *
 */
public static boolean isBidiPlatform() {
    return false;
}
/*
 * Not implemented.
 */
public static boolean isKeyboardBidi() {
    return false;
}
/*
 * Not implemented.
 */
public static int getFontBidiAttributes(GC gc) {
    return 0;   
}
/*
 *  Not implemented.
 *
 */
public static void getOrderInfo(GC gc, String text, int[] order, byte[] classBuffer, int flags, int [] offsets) {
}
/*
 *  Not implemented. Returns null.
 *
 */
public static char[] getRenderInfo(GC gc, String text, int[] order, byte[] classBuffer, int[] dx, int flags, int[] offsets) {
    return null;
}
/*
 * Not implemented. Returns 0.
 */
public static int getKeyboardLanguage() {
    return 0;
}
/*
 * Not implemented.
 */
public static void removeLanguageListener(objc.id hwnd) {
}   
public static void removeLanguageListener (Control control) {
}
/*
 * Not implemented.
 */
public static void setKeyboardLanguage(int language) {
}
/*
 * Not implemented.
 */
public static boolean setOrientation(objc.id hwnd, int orientation) {
    return false;
}
public static boolean setOrientation (Control control, int orientation) {
    return false;
}
}