--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/accessibility/AccessibleObject.d	Fri Mar 20 23:03:58 2009 +0100
@@ -0,0 +1,1383 @@
+/*******************************************************************************
+ * 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:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.swt.accessibility.AccessibleObject;
+
+import org.eclipse.swt.internal.accessibility.gtk.ATK;
+import org.eclipse.swt.internal.gtk.OS;
+import org.eclipse.swt.accessibility.Accessible;
+import org.eclipse.swt.accessibility.AccessibleListener;
+import org.eclipse.swt.accessibility.AccessibleControlListener;
+import org.eclipse.swt.accessibility.AccessibleTextListener;
+import org.eclipse.swt.accessibility.AccessibleEvent;
+import org.eclipse.swt.accessibility.AccessibleControlEvent;
+import org.eclipse.swt.accessibility.AccessibleTextEvent;
+import org.eclipse.swt.accessibility.ACC;
+import org.eclipse.swt.accessibility.AccessibleFactory;
+import org.eclipse.swt.widgets.Display;
+import java.lang.all;
+import tango.text.Util;
+
+class AccessibleObject {
+    AtkObject* handle;
+    int /*long*/ parentType;
+    int index = -1, id = ACC.CHILDID_SELF;
+    Accessible accessible;
+    AccessibleObject parent;
+    AccessibleObject[AtkObject*] children;
+    /*
+    * a lightweight object does not correspond to a concrete gtk widget, but
+    * to a logical child of a widget (eg.- a CTabItem, which is simply drawn)
+    */
+    bool isLightweight = false;
+
+    static String actionNamePtr;
+    static String descriptionPtr;
+    static String keybindingPtr;
+    static String namePtr;
+    static AccessibleObject[AtkObject*] AccessibleObjects;
+    static /*const*/ uint ATK_ACTION_TYPE;
+    static /*const*/ uint ATK_COMPONENT_TYPE;
+    static /*const*/ uint ATK_HYPERTEXT_TYPE;
+    static /*const*/ uint ATK_SELECTION_TYPE;
+    static /*const*/ uint ATK_TEXT_TYPE;
+    static /*const*/ bool DEBUG;
+    static bool static_this_completed = false;
+
+    package static void static_this() {
+        if( static_this_completed ) return;
+        DEBUG = Display.DEBUG;
+        ATK_ACTION_TYPE = ATK.g_type_from_name ("AtkAction");
+        ATK_COMPONENT_TYPE = ATK.g_type_from_name ("AtkComponent");
+        ATK_HYPERTEXT_TYPE = ATK.g_type_from_name ("AtkHypertext");
+        ATK_SELECTION_TYPE = ATK.g_type_from_name ("AtkSelection");
+        ATK_TEXT_TYPE = ATK.g_type_from_name ("AtkText");
+        static_this_completed = true;
+    }
+
+    this (int /*long*/ type, GtkWidget* widget, Accessible accessible, int /*long*/ parentType, bool isLightweight) {
+        handle = cast(AtkObject*)ATK.g_object_new (type, null);
+        this.parentType = parentType;
+        ATK.atk_object_initialize (handle, widget);
+        this.accessible = accessible;
+        this.isLightweight = isLightweight;
+        AccessibleObjects[handle] = this;
+        if (DEBUG) getDwtLogger().info( __FILE__, __LINE__, "new AccessibleObject: {}", handle);
+    }
+
+    void addChild (AccessibleObject child) {
+        children[child.handle] = child;
+        child.setParent (this);
+    }
+
+    package static extern(C) char* atkAction_get_keybinding (void* obj, int index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkAction_get_keybinding");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        char* parentResult;
+        if (ATK.g_type_is_a (object.parentType, ATK_ACTION_TYPE)) {
+            auto superType = cast(AtkActionIface*)ATK.g_type_interface_peek_parent (ATK.ATK_ACTION_GET_IFACE (object.handle));
+            AtkActionIface* actionIface = superType;
+            if (actionIface.get_keybinding !is null) {
+                parentResult = actionIface.get_keybinding( object.handle, index );
+            }
+        }
+        AccessibleListener[] listeners = object.getAccessibleListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleEvent event = new AccessibleEvent (object);
+        event.childID = object.id;
+        if (parentResult !is null) {
+            String res = fromStringz( parentResult );
+            event.result = res.dup;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getKeyboardShortcut (event);
+        }
+        if (event.result is null) return parentResult;
+        if (keybindingPtr !is null ) OS.g_free (keybindingPtr.ptr);
+        String name = event.result.dup ~ \0;
+        char* p = cast(char*) OS.g_malloc (name.length);
+        keybindingPtr =  p ? p[ 0 .. name.length ] : null;
+        return keybindingPtr.ptr;
+    }
+
+    package static extern(C) char* atkAction_get_name (void* obj, int index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkAction_get_name");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        char* parentResult;
+        if (ATK.g_type_is_a (object.parentType, ATK_ACTION_TYPE)) {
+            auto actionIface = cast(AtkActionIface*)ATK.g_type_interface_peek_parent (ATK.ATK_ACTION_GET_IFACE (object.handle));
+            if (actionIface.get_name !is null) {
+                parentResult = actionIface.get_name( object.handle, index);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        if (parentResult !is null) {
+            String res = fromStringz( parentResult );
+            event.result = res.dup;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getDefaultAction (event);
+        }
+        if (event.result is null) return parentResult;
+        if (actionNamePtr !is null) OS.g_free (actionNamePtr.ptr);
+
+        String name = event.result.dup ~ \0;
+        auto p = cast(char*)OS.g_malloc (name.length);
+        actionNamePtr =  p ? p[ 0 .. name.length ] : null;
+        return actionNamePtr.ptr;
+    }
+
+    package static extern(C) void atkComponent_get_extents (void* obj, int* x, int* y, int* width, int* height, int coord_type) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkComponent_get_extents");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        *x = 0;
+        *y = 0;
+        *width = 0;
+        *height = 0;
+        if (ATK.g_type_is_a (object.parentType, ATK_COMPONENT_TYPE)) {
+            auto componentIface = cast(AtkComponentIface*) ATK.g_type_interface_peek_parent (ATK.ATK_COMPONENT_GET_IFACE (object.handle));
+            if (componentIface.get_extents !is null) {
+                componentIface.get_extents( object.handle, x, y, width, height, coord_type);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return 0;
+
+        int parentX = *x, parentY = *y;
+        int parentWidth = *width, parentHeight = *height;
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.x = parentX; event.y = parentY;
+        event.width = parentWidth; event.height = parentHeight;
+        if (coord_type is ATK.ATK_XY_WINDOW) {
+            /* translate control -> display, for filling in event to be dispatched */
+            auto gtkAccessible = ATK.GTK_ACCESSIBLE (object.handle);
+            auto topLevel = ATK.gtk_widget_get_toplevel (gtkAccessible.widget);
+            auto window = OS.GTK_WIDGET_WINDOW (topLevel);
+            int topWindowX, topWindowY;
+            OS.gdk_window_get_origin (window, &topWindowX, &topWindowY);
+            event.x += topWindowX;
+            event.y += topWindowY;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getLocation (event);
+        }
+        if (coord_type is ATK.ATK_XY_WINDOW) {
+            /* translate display -> control, for answering to the OS */
+            auto gtkAccessible = ATK.GTK_ACCESSIBLE (object.handle);
+            auto topLevel = ATK.gtk_widget_get_toplevel (gtkAccessible.widget);
+            auto window = OS.GTK_WIDGET_WINDOW (topLevel);
+            int topWindowX, topWindowY;
+            OS.gdk_window_get_origin (window, &topWindowX, &topWindowY);
+            event.x -= topWindowX;
+            event.y -= topWindowY;
+        }
+        *x = event.x;
+        *y = event.y;
+        *width = event.width;
+        *height = event.height;
+        //return 0;
+    }
+
+    package static extern(C) void atkComponent_get_position (void* obj, int* x, int* y, int coord_type) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkComponent_get_position, object: {} x:{} y:{} coord:{}", atkObject, x, y, coord_type);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        *x=0;
+        *y=0;
+        if (ATK.g_type_is_a (object.parentType, ATK_COMPONENT_TYPE)) {
+            auto componentIface = cast(AtkComponentIface*)ATK.g_type_interface_peek_parent (ATK.ATK_COMPONENT_GET_IFACE (object.handle));
+            if (componentIface.get_extents !is null) {
+                componentIface.get_position( object.handle, x, y, coord_type);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return 0;
+
+        int parentX, parentY;
+        parentX = *x;
+        parentY = *y;
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.x = parentX; event.y = parentY;
+        if (coord_type is ATK.ATK_XY_WINDOW) {
+            /* translate control -> display, for filling in event to be dispatched */
+            auto gtkAccessible = ATK.GTK_ACCESSIBLE (object.handle);
+            auto topLevel = ATK.gtk_widget_get_toplevel (gtkAccessible.widget);
+            auto window = OS.GTK_WIDGET_WINDOW (topLevel);
+            int topWindowX, topWindowY;
+            OS.gdk_window_get_origin (window, &topWindowX, &topWindowY);
+            event.x += topWindowX;
+            event.y += topWindowY;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getLocation (event);
+        }
+        if (coord_type is ATK.ATK_XY_WINDOW) {
+            /* translate display -> control, for answering to the OS */
+            auto gtkAccessible = ATK.GTK_ACCESSIBLE (object.handle);
+            auto topLevel = ATK.gtk_widget_get_toplevel (gtkAccessible.widget);
+            auto window = OS.GTK_WIDGET_WINDOW (topLevel);
+            int topWindowX, topWindowY;
+            OS.gdk_window_get_origin (window, &topWindowX, &topWindowY);
+            event.x -= topWindowX;
+            event.y -= topWindowY;
+        }
+        *x=event.x;
+        *y=event.y;
+        //return 0;
+    }
+
+    //PORTING_FIXME: what about the coord_type? componentIface.get_size( object.handle, width, height, coord_type);
+    //package static extern(C) void atkComponent_get_size (void* obj, int* width, int* height, int coord_type) {
+    package static extern(C) void atkComponent_get_size (void* obj, int* width, int* height) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkComponent_get_size");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        *width=0;
+        *height=0;
+        if (ATK.g_type_is_a (object.parentType, ATK_COMPONENT_TYPE)) {
+            auto componentIface = cast(AtkComponentIface*)ATK.g_type_interface_peek_parent (ATK.ATK_COMPONENT_GET_IFACE (object.handle));
+            if (componentIface.get_extents !is null) {
+                //PORTING_FIXME: what about the coord_type? componentIface.get_size( object.handle, width, height, coord_type);
+                componentIface.get_size( object.handle, width, height);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return 0;
+
+        int parentWidth, parentHeight;
+        parentWidth= *width;
+        parentHeight= *height;
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.width = parentWidth; event.height = parentHeight;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getLocation (event);
+        }
+        *width=event.width;
+        *height=event.height;
+        //return 0;
+    }
+
+    package static extern(C) AtkObject* atkComponent_ref_accessible_at_point (void* obj, int x, int y, int coord_type) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkComponent_ref_accessible_at_point");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        AtkObject* parentResult;
+        if (ATK.g_type_is_a (object.parentType, ATK_COMPONENT_TYPE)) {
+            auto componentIface = cast(AtkComponentIface*)ATK.g_type_interface_peek_parent (ATK.ATK_COMPONENT_GET_IFACE (object.handle));
+            if (componentIface.ref_accessible_at_point !is null) {
+                parentResult = componentIface.ref_accessible_at_point( object.handle, x, y, coord_type);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.x = x; event.y = y;
+        if (coord_type is ATK.ATK_XY_WINDOW) {
+            /* translate control -> display, for filling in the event to be dispatched */
+            auto gtkAccessible = ATK.GTK_ACCESSIBLE (object.handle);
+            auto topLevel = ATK.gtk_widget_get_toplevel (gtkAccessible.widget);
+            auto window = OS.GTK_WIDGET_WINDOW (topLevel);
+            int topWindowX, topWindowY;
+            OS.gdk_window_get_origin (window, &topWindowX, &topWindowY);
+            event.x += topWindowX;
+            event.y += topWindowY;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getChildAtPoint (event);
+        }
+        if (event.childID is object.id) event.childID = ACC.CHILDID_SELF;
+        AccessibleObject accObj = object.getChildByID (event.childID);
+        if (accObj !is null) {
+            if (parentResult !is null) OS.g_object_unref (parentResult);
+            OS.g_object_ref (accObj.handle);
+            return accObj.handle;
+        }
+        return parentResult;
+    }
+
+    package static extern(C) AtkHyperlink* atkHypertext_get_link (void* obj, int link_index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkHypertext_get_link");
+        return null;
+    }
+
+    package static extern(C) int atkHypertext_get_n_links (void* obj) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkHypertext_get_n_links");
+        return 0;   /* read hyperlink's name */
+    }
+
+    package static extern(C) int atkHypertext_get_link_index (void* obj, int char_index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkHypertext_get_link_index");
+        return 0;
+    }
+
+    package static extern(C) char* atkObject_get_description (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_get_description");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        char* parentResult;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_description !is null) {
+            parentResult = objectClass.get_description(object.handle);
+        }
+        AccessibleListener[] listeners = object.getAccessibleListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleEvent event = new AccessibleEvent (object);
+        event.childID = object.id;
+        if (parentResult !is null) {
+            event.result = fromStringz( parentResult ).dup;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getDescription (event);
+        }
+        if (event.result is null) return parentResult;
+        if (descriptionPtr !is null) OS.g_free (descriptionPtr.ptr);
+
+        String name = event.result.dup ~ \0;
+        char* p = cast(char*)OS.g_malloc (name.length);
+        descriptionPtr =  p ? p[ 0 .. name.length ] : null;
+        return descriptionPtr.ptr;  }
+
+    package static extern(C) char* atkObject_get_name (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_get_name: {}", atkObject);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        char* parentResult;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_name !is null) {
+            parentResult = objectClass.get_name( object.handle);
+        }
+        AccessibleListener[] listeners = object.getAccessibleListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleEvent event = new AccessibleEvent (object);
+        event.childID = object.id;
+        if (parentResult !is null) {
+            event.result = fromStringz( parentResult ).dup;
+        }
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getName (event);
+        }
+        if (event.result is null) return parentResult;
+        if (namePtr !is null) OS.g_free (namePtr.ptr);
+        String name = event.result.dup ~ \0;
+        char* p = cast(char*)OS.g_malloc (name.length);
+        namePtr =  p ? p[ 0 .. name.length ] : null;
+        return namePtr.ptr;
+    }
+
+    package static extern(C) int atkObject_get_n_children (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_get_n_children: {}", atkObject);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        int /*long*/ parentResult = 0;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_n_children !is null) {
+            parentResult = objectClass.get_n_children( object.handle);
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.detail = cast(int)/*64*/parentResult;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getChildCount (event);
+        }
+        return event.detail;
+    }
+
+    package static extern(C) int atkObject_get_index_in_parent (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObjectCB_get_index_in_parent.  ");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        if (object.index !is -1) return object.index;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_index_in_parent is null) return 0;
+        return objectClass.get_index_in_parent(object. handle);
+    }
+
+    package static extern(C) AtkObject* atkObject_get_parent (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_get_parent: {}", atkObject);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        if (object.parent !is null) return object.parent.handle;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_parent is null) return null;
+        return objectClass.get_parent( object.handle);
+    }
+
+    package static extern(C) int atkObject_get_role (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_get_role: {}", atkObject);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        if (object.getAccessibleListeners ().length !is 0) {
+            AccessibleControlListener[] listeners = object.getControlListeners ();
+            AccessibleControlEvent event = new AccessibleControlEvent (object);
+            event.childID = object.id;
+            event.detail = -1;
+            for (int i = 0; i < listeners.length; i++) {
+                listeners [i].getRole (event);
+            }
+            if (event.detail !is -1) {
+                switch (event.detail) {
+                    /* Convert from win32 role values to atk role values */
+                    case ACC.ROLE_CHECKBUTTON: return ATK.ATK_ROLE_CHECK_BOX;
+                    case ACC.ROLE_CLIENT_AREA: return ATK.ATK_ROLE_DRAWING_AREA;
+                    case ACC.ROLE_COMBOBOX: return ATK.ATK_ROLE_COMBO_BOX;
+                    case ACC.ROLE_DIALOG: return ATK.ATK_ROLE_DIALOG;
+                    case ACC.ROLE_LABEL: return ATK.ATK_ROLE_LABEL;
+                    case ACC.ROLE_LINK: return ATK.ATK_ROLE_TEXT;
+                    case ACC.ROLE_LIST: return ATK.ATK_ROLE_LIST;
+                    case ACC.ROLE_LISTITEM: return ATK.ATK_ROLE_LIST_ITEM;
+                    case ACC.ROLE_MENU: return ATK.ATK_ROLE_MENU;
+                    case ACC.ROLE_MENUBAR: return ATK.ATK_ROLE_MENU_BAR;
+                    case ACC.ROLE_MENUITEM: return ATK.ATK_ROLE_MENU_ITEM;
+                    case ACC.ROLE_PROGRESSBAR: return ATK.ATK_ROLE_PROGRESS_BAR;
+                    case ACC.ROLE_PUSHBUTTON: return ATK.ATK_ROLE_PUSH_BUTTON;
+                    case ACC.ROLE_SCROLLBAR: return ATK.ATK_ROLE_SCROLL_BAR;
+                    case ACC.ROLE_SEPARATOR: return ATK.ATK_ROLE_SEPARATOR;
+                    case ACC.ROLE_SLIDER: return ATK.ATK_ROLE_SLIDER;
+                    case ACC.ROLE_TABLE: return ATK.ATK_ROLE_LIST;
+                    case ACC.ROLE_TABLECELL: return ATK.ATK_ROLE_LIST_ITEM;
+                    case ACC.ROLE_TABLECOLUMNHEADER: return ATK.ATK_ROLE_TABLE_COLUMN_HEADER;
+                    case ACC.ROLE_TABLEROWHEADER: return ATK.ATK_ROLE_TABLE_ROW_HEADER;
+                    case ACC.ROLE_TABFOLDER: return ATK.ATK_ROLE_PAGE_TAB_LIST;
+                    case ACC.ROLE_TABITEM: return ATK.ATK_ROLE_PAGE_TAB;
+                    case ACC.ROLE_TEXT: return ATK.ATK_ROLE_TEXT;
+                    case ACC.ROLE_TOOLBAR: return ATK.ATK_ROLE_TOOL_BAR;
+                    case ACC.ROLE_TOOLTIP: return ATK.ATK_ROLE_TOOL_TIP;
+                    case ACC.ROLE_TREE: return ATK.ATK_ROLE_TREE;
+                    case ACC.ROLE_TREEITEM: return ATK.ATK_ROLE_LIST_ITEM;
+                    case ACC.ROLE_RADIOBUTTON: return ATK.ATK_ROLE_RADIO_BUTTON;
+                    case ACC.ROLE_WINDOW: return ATK.ATK_ROLE_WINDOW;
+                    default:
+                }
+            }
+        }
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.get_role is null) return 0;
+        return objectClass.get_role( object.handle);
+    }
+
+    package static extern(C) AtkObject* atkObject_ref_child (AtkObject* atkObject, int /*long*/ index) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_ref_child: {} of: {}", index, atkObject);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        object.updateChildren ();
+        AccessibleObject accObject = object.getChildByIndex (cast(int)/*64*/index);
+        if (accObject !is null) {
+            OS.g_object_ref (accObject.handle);
+            return accObject.handle;
+        }
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.ref_child is null) return null;
+        return objectClass.ref_child( object.handle, index);
+    }
+
+    package static extern(C) AtkStateSet * atkObject_ref_state_set (AtkObject* atkObject) {
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkObject_ref_state_set");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        AtkStateSet* parentResult;
+        auto objectClass = cast(AtkObjectClass*)ATK.g_type_class_peek (object.parentType);
+        if (objectClass.ref_state_set !is null) {
+            parentResult = objectClass.ref_state_set( object.handle);
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        auto set = parentResult;
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        event.detail = -1;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getState (event);
+        }
+        if (event.detail !is -1) {
+            /*  Convert from win32 state values to atk state values */
+            int state = event.detail;
+            if ((state & ACC.STATE_BUSY) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_BUSY);
+            if ((state & ACC.STATE_CHECKED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_CHECKED);
+            if ((state & ACC.STATE_EXPANDED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_EXPANDED);
+            if ((state & ACC.STATE_FOCUSABLE) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_FOCUSABLE);
+            if ((state & ACC.STATE_FOCUSED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_FOCUSED);
+            if ((state & ACC.STATE_HOTTRACKED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_ARMED);
+            if ((state & ACC.STATE_INVISIBLE) is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_VISIBLE);
+            if ((state & ACC.STATE_MULTISELECTABLE) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_MULTISELECTABLE);
+            if ((state & ACC.STATE_OFFSCREEN) is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_SHOWING);
+            if ((state & ACC.STATE_PRESSED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_PRESSED);
+            if ((state & ACC.STATE_READONLY) is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_EDITABLE);
+            if ((state & ACC.STATE_SELECTABLE) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_SELECTABLE);
+            if ((state & ACC.STATE_SELECTED) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_SELECTED);
+            if ((state & ACC.STATE_SIZEABLE) !is 0) ATK.atk_state_set_add_state (set, ATK.ATK_STATE_RESIZABLE);
+            /* Note: STATE_COLLAPSED, STATE_LINKED and STATE_NORMAL have no ATK equivalents */
+        }
+        return set;
+    }
+
+    package static extern(C) int atkSelection_is_child_selected (void* obj, int index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkSelection_is_child_selected");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        int /*long*/ parentResult = 0;
+        if (ATK.g_type_is_a (object.parentType, ATK_SELECTION_TYPE)) {
+            auto selectionIface = cast(AtkSelectionIface*)ATK.g_type_interface_peek_parent (ATK.ATK_SELECTION_GET_IFACE (object.handle));
+            if (selectionIface.is_child_selected !is null) {
+                parentResult = selectionIface.is_child_selected( object.handle, index);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getSelection (event);
+        }
+        AccessibleObject accessibleObject = object.getChildByID (event.childID);
+        if (accessibleObject !is null) {
+            return accessibleObject.index is index ? 1 : 0;
+        }
+        return parentResult;
+    }
+
+    package static extern(C) AtkObject* atkSelection_ref_selection (void* obj, int index) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkSelection_ref_selection");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        AtkObject* parentResult;
+        if (ATK.g_type_is_a (object.parentType, ATK_SELECTION_TYPE)) {
+            auto selectionIface = cast(AtkSelectionIface*)ATK.g_type_interface_peek_parent (ATK.ATK_SELECTION_GET_IFACE (object.handle));
+            if (selectionIface.ref_selection !is null) {
+                parentResult = selectionIface.ref_selection( object.handle, index);
+            }
+        }
+        AccessibleControlListener[] listeners = object.getControlListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (object);
+        event.childID = object.id;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getSelection (event);
+        }
+        AccessibleObject accObj = object.getChildByID (event.childID);
+        if (accObj !is null) {
+            if (parentResult !is null) OS.g_object_unref (parentResult);
+            OS.g_object_ref (accObj.handle);
+            return accObj.handle;
+        }
+        return parentResult;
+    }
+
+    package static extern(C) int atkText_get_caret_offset (void* obj) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_caret_offset");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        int /*long*/ parentResult = 0;
+        if (ATK.g_type_is_a (object.parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_interface_peek_parent (ATK.ATK_TEXT_GET_IFACE (object.handle));
+            if (textIface.get_caret_offset !is null) {
+                parentResult = textIface.get_caret_offset( object.handle);
+            }
+        }
+        AccessibleTextListener[] listeners = object.getTextListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleTextEvent event = new AccessibleTextEvent (object);
+        event.childID = object.id;
+        event.offset = cast(int)/*64*/parentResult;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getCaretOffset (event);
+        }
+        return event.offset;
+    }
+
+    package static extern(C) uint atkText_get_character_at_offset (void* obj, int offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_character_at_offset");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        String text = object.getText ();
+        if (text !is null) return text[cast(int)/*64*/offset ]; // TODO
+        if (ATK.g_type_is_a (object.parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_class_peek (object.parentType);
+            if (textIface.get_character_at_offset !is null) {
+                return textIface.get_character_at_offset( object.handle, offset);
+            }
+        }
+        return 0;
+    }
+
+    package static extern(C) int atkText_get_character_count (void* obj) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_character_count");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        String text = object.getText ();
+        if (text !is null) return text.length;
+        if (ATK.g_type_is_a (object.parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_class_peek (object.parentType);
+            if (textIface.get_character_count !is null) {
+                return textIface.get_character_count( object.handle);
+            }
+        }
+        return 0;
+    }
+
+    package static extern(C) int atkText_get_n_selections (void* obj) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info( __FILE__, __LINE__, "-->atkText_get_n_selections");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return 0;
+        int /*long*/ parentResult = 0;
+        if (ATK.g_type_is_a (object.parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_interface_peek_parent (ATK.ATK_TEXT_GET_IFACE (object.handle));
+            if (textIface.get_n_selections !is null) {
+                parentResult = textIface.get_n_selections( object.handle);
+            }
+        }
+        AccessibleTextListener[] listeners = object.getTextListeners ();
+        if (listeners.length is 0) return parentResult;
+
+        AccessibleTextEvent event = new AccessibleTextEvent (object);
+        event.childID = object.id;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getSelectionRange (event);
+        }
+        return event.length is 0 ? parentResult : 1;
+    }
+
+    package static extern(C) char* atkText_get_selection (void* obj, int selection_num, int* start_offset, int* end_offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_selection");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        *start_offset=0;
+        *end_offset=0;
+        if (ATK.g_type_is_a (object.parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_interface_peek_parent (ATK.ATK_TEXT_GET_IFACE (object.handle));
+            if (textIface.get_selection !is null) {
+                textIface.get_selection( object.handle, selection_num, start_offset, end_offset );
+            }
+        }
+        AccessibleTextListener[] listeners = object.getTextListeners ();
+        if (listeners.length is 0) return null;
+
+        AccessibleTextEvent event = new AccessibleTextEvent (object);
+        event.childID = object.id;
+        int parentStart;
+        int parentEnd;
+        parentStart= *start_offset;
+        parentEnd= *end_offset;
+        event.offset = parentStart;
+        event.length = parentEnd - parentStart;
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getSelectionRange (event);
+        }
+        *start_offset = event.offset;
+        *end_offset = event.offset + event.length;
+        return null;
+    }
+
+    package static extern(C) char* atkText_get_text (void* obj, int start_offset, int end_offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_text: {},{}", start_offset, end_offset);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        String text = object.getText ();
+        if (text.length > 0) {
+            if (end_offset is -1) {
+                end_offset = text.length ;
+            } else {
+                end_offset = Math.min (end_offset, text.length );
+            }
+            start_offset = Math.min (start_offset, end_offset);
+            text = text[ start_offset .. end_offset ];
+            auto result = cast(char*)OS.g_malloc (text.length+1);
+            result[ 0 .. text.length ] = text;
+            result[ text.length ] = '\0';
+            return result;
+        }
+        return null;
+    }
+
+    package static extern(C) char* atkText_get_text_after_offset (void* obj, int offset_value, int boundary_type, int* start_offset, int* end_offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_text_after_offset");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        int offset = cast(int)/*64*/offset_value;
+        String text = object.getText ();
+        if (text.length > 0) {
+            int length = text.length ;
+            offset = Math.min (offset, length - 1);
+            int startBounds = offset;
+            int endBounds = offset;
+            switch (cast(int)/*64*/boundary_type) {
+                case ATK.ATK_TEXT_BOUNDARY_CHAR: {
+                    if (length > offset) endBounds++;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_START: {
+                    int wordStart1 = nextIndexOfChar (text, " !?.\n", offset - 1);
+                    if (wordStart1 is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    wordStart1 = nextIndexOfNotChar (text, " !?.\n", wordStart1);
+                    if (wordStart1 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = wordStart1;
+                    int wordStart2 = nextIndexOfChar (text, " !?.\n", wordStart1);
+                    if (wordStart2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, " !?.\n", wordStart2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_END: {
+                    int previousWordEnd = previousIndexOfNotChar (text, " \n", offset);
+                    if (previousWordEnd is -1 || previousWordEnd !is offset - 1) {
+                        offset = nextIndexOfNotChar (text, " \n", offset);
+                    }
+                    if (offset is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    int wordEnd1 = nextIndexOfChar (text, " !?.\n", cast(int)/*64*/offset);
+                    if (wordEnd1 is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    wordEnd1 = nextIndexOfNotChar (text, "!?.", wordEnd1);
+                    if (wordEnd1 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = wordEnd1;
+                    int wordEnd2 = nextIndexOfNotChar (text, " \n", wordEnd1);
+                    if (wordEnd2 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    wordEnd2 = nextIndexOfChar (text, " !?.\n", wordEnd2);
+                    if (wordEnd2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, "!?.", wordEnd2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_START: {
+                    int previousSentenceEnd = previousIndexOfChar (text, "!?.", offset);
+                    int previousText = previousIndexOfNotChar (text, " !?.\n", offset);
+                    int sentenceStart1 = 0;
+                    if (previousSentenceEnd >= previousText) {
+                        sentenceStart1 = nextIndexOfNotChar (text, " !?.\n", offset);
+                    } else {
+                        sentenceStart1 = nextIndexOfChar (text, "!?.", offset);
+                        if (sentenceStart1 is -1) {
+                            startBounds = endBounds = length;
+                            break;
+                        }
+                        sentenceStart1 = nextIndexOfNotChar (text, " !?.\n", sentenceStart1);
+                    }
+                    if (sentenceStart1 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = sentenceStart1;
+                    int sentenceStart2 = nextIndexOfChar (text, "!?.", sentenceStart1);
+                    if (sentenceStart2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, " !?.\n", sentenceStart2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_END: {
+                    int sentenceEnd1 = nextIndexOfChar (text, "!?.", offset);
+                    if (sentenceEnd1 is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    sentenceEnd1 = nextIndexOfNotChar (text, "!?.", sentenceEnd1);
+                    if (sentenceEnd1 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = sentenceEnd1;
+                    int sentenceEnd2 = nextIndexOfNotChar (text, " \n", sentenceEnd1);
+                    if (sentenceEnd2 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    sentenceEnd2 = nextIndexOfChar (text, "!?.", sentenceEnd2);
+                    if (sentenceEnd2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, "!?.", sentenceEnd2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_START: {
+                    int lineStart1 = locate( text, '\n' );
+                    if( lineStart1 is text.length ) lineStart1 = -1;
+                    if (lineStart1 is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    lineStart1 = nextIndexOfNotChar (text, "\n", lineStart1);
+                    if (lineStart1 is length) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = lineStart1;
+                    int lineStart2 = locate( text, '\n' );
+                    if( lineStart2 is text.length ) lineStart2 = -1;
+                    if (lineStart2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    lineStart2 = nextIndexOfNotChar (text, "\n", lineStart2);
+                    endBounds = lineStart2;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_END: {
+                    int lineEnd1 = nextIndexOfChar (text, "\n", offset);
+                    if (lineEnd1 is -1) {
+                        startBounds = endBounds = length;
+                        break;
+                    }
+                    startBounds = lineEnd1;
+                    if (startBounds is length) {
+                        endBounds = length;
+                        break;
+                    }
+                    int lineEnd2 = nextIndexOfChar (text, "\n", lineEnd1 + 1);
+                    if (lineEnd2 is -1) {
+                        endBounds = length;
+                        break;
+                    }
+                    endBounds = lineEnd2;
+                    break;
+                }
+                default:
+            }
+            *start_offset=startBounds;
+            *end_offset=endBounds;
+            text = text[startBounds .. endBounds ];
+            auto result = cast(char*)OS.g_malloc (text.length+1);
+            result[ 0 .. text.length ] = text;
+            result[ text.length ] = '\0';
+            return result;
+        }
+        return null;
+    }
+
+    package static extern(C) char* atkText_get_text_at_offset (void* obj, int offset_value, int boundary_type, int* start_offset, int* end_offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_text_at_offset: {} start: {} end: {}", offset_value, start_offset, end_offset);
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        int offset = offset_value;
+        String text = object.getText ();
+        if (text.length > 0) {
+            int length = text.length;
+            offset = Math.min (offset, length - 1);
+            int startBounds = offset;
+            int endBounds = offset;
+            switch (boundary_type) {
+                case ATK.ATK_TEXT_BOUNDARY_CHAR: {
+                    if (length > offset) endBounds++;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_START: {
+                    int wordStart1 = previousIndexOfNotChar (text, " !?.\n", offset);
+                    if (wordStart1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    wordStart1 = previousIndexOfChar (text, " !?.\n", wordStart1) + 1;
+                    if (wordStart1 is -1) {
+                        startBounds = 0;
+                        break;
+                    }
+                    startBounds = wordStart1;
+                    int wordStart2 = nextIndexOfChar (text, " !?.\n", wordStart1);
+                    endBounds = nextIndexOfNotChar (text, " !?.\n", wordStart2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_END: {
+                    int wordEnd1 = previousIndexOfNotChar (text, "!?.", offset + 1);
+                    wordEnd1 = previousIndexOfChar (text, " !?.\n", wordEnd1);
+                    wordEnd1 = previousIndexOfNotChar (text, " \n", wordEnd1 + 1);
+                    if (wordEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    startBounds = wordEnd1 + 1;
+                    int wordEnd2 = nextIndexOfNotChar (text, " \n", startBounds);
+                    if (wordEnd2 is length) {
+                        endBounds = startBounds;
+                        break;
+                    }
+                    wordEnd2 = nextIndexOfChar (text, " !?.\n", wordEnd2);
+                    if (wordEnd2 is -1) {
+                        endBounds = startBounds;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, "!?.", wordEnd2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_START: {
+                    int sentenceStart1 = previousIndexOfNotChar (text, " !?.\n", offset + 1);
+                    if (sentenceStart1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    sentenceStart1 = previousIndexOfChar (text, "!?.", sentenceStart1) + 1;
+                    startBounds = nextIndexOfNotChar (text, " \n", sentenceStart1);
+                    int sentenceStart2 = nextIndexOfChar (text, "!?.", startBounds);
+                    endBounds = nextIndexOfNotChar (text, " !?.\n", sentenceStart2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_END: {
+                    int sentenceEnd1 = previousIndexOfNotChar (text, "!?.", offset + 1);
+                    sentenceEnd1 = previousIndexOfChar (text, "!?.", sentenceEnd1);
+                    sentenceEnd1 = previousIndexOfNotChar (text, " \n", sentenceEnd1 + 1);
+                    if (sentenceEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    startBounds = sentenceEnd1 + 1;
+                    int sentenceEnd2 = nextIndexOfNotChar (text, " \n", startBounds);
+                    if (sentenceEnd2 is length) {
+                        endBounds = startBounds;
+                        break;
+                    }
+                    sentenceEnd2 = nextIndexOfChar (text, "!?.", sentenceEnd2);
+                    if (sentenceEnd2 is -1) {
+                        endBounds = startBounds;
+                        break;
+                    }
+                    endBounds = nextIndexOfNotChar (text, "!?.", sentenceEnd2);
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_START: {
+                    startBounds = previousIndexOfChar (text, "\n", offset) + 1;
+                    int lineEnd2 = nextIndexOfChar (text, "\n", startBounds);
+                    if (lineEnd2 < length) lineEnd2++;
+                    endBounds = lineEnd2;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_END: {
+                    int lineEnd1 = previousIndexOfChar (text, "\n", offset);
+                    if (lineEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    startBounds = lineEnd1;
+                    endBounds = nextIndexOfChar (text, "\n", lineEnd1 + 1);
+                }
+                default:
+            }
+            *start_offset=startBounds;
+            *end_offset=endBounds;
+            text = text[startBounds .. endBounds];
+            auto result = cast(char*) OS.g_malloc (text.length+1);
+            result[ 0 .. text.length ] = text;
+            result[ text.length ] = '\0';
+            return result;
+        }
+        return null;
+    }
+
+    package static extern(C) char* atkText_get_text_before_offset (void* obj, int offset_value, int boundary_type, int* start_offset, int* end_offset) {
+        auto atkObject = cast(AtkObject*)obj;
+        if (DEBUG) getDwtLogger().info (__FILE__, __LINE__, "-->atkText_get_text_before_offset");
+        AccessibleObject object = getAccessibleObject (atkObject);
+        if (object is null) return null;
+        int offset = offset_value;
+        String text = object.getText ();
+        if (text.length > 0) {
+            int length = text.length;
+            offset = Math.min (offset, length - 1);
+            int startBounds = offset;
+            int endBounds = offset;
+            switch (boundary_type) {
+                case ATK.ATK_TEXT_BOUNDARY_CHAR: {
+                    if (length >= offset && offset > 0) startBounds--;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_START: {
+                    int wordStart1 = previousIndexOfChar (text, " !?.\n", offset - 1);
+                    if (wordStart1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    int wordStart2 = previousIndexOfNotChar (text, " !?.\n", wordStart1);
+                    if (wordStart2 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = wordStart1 + 1;
+                    startBounds = previousIndexOfChar (text, " !?.\n", wordStart2) + 1;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_WORD_END: {
+                    int wordEnd1 =previousIndexOfChar (text, " !?.\n", offset);
+                    if (wordEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    wordEnd1 = previousIndexOfNotChar (text, " \n", wordEnd1 + 1);
+                    if (wordEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = wordEnd1 + 1;
+                    int wordEnd2 = previousIndexOfNotChar (text, " !?.\n", endBounds);
+                    wordEnd2 = previousIndexOfChar (text, " !?.\n", wordEnd2);
+                    if (wordEnd2 is -1) {
+                        startBounds = 0;
+                        break;
+                    }
+                    startBounds = previousIndexOfNotChar (text, " \n", wordEnd2 + 1) + 1;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_START: {
+                    int sentenceStart1 = previousIndexOfChar (text, "!?.", offset);
+                    if (sentenceStart1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    int sentenceStart2 = previousIndexOfNotChar (text, "!?.", sentenceStart1);
+                    if (sentenceStart2 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = sentenceStart1 + 1;
+                    startBounds = previousIndexOfChar (text, "!?.", sentenceStart2) + 1;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_SENTENCE_END: {
+                    int sentenceEnd1 = previousIndexOfChar (text, "!?.", offset);
+                    if (sentenceEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    sentenceEnd1 = previousIndexOfNotChar (text, " \n", sentenceEnd1 + 1);
+                    if (sentenceEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = sentenceEnd1 + 1;
+                    int sentenceEnd2 = previousIndexOfNotChar (text, "!?.", endBounds);
+                    sentenceEnd2 = previousIndexOfChar (text, "!?.", sentenceEnd2);
+                    if (sentenceEnd2 is -1) {
+                        startBounds = 0;
+                        break;
+                    }
+                    startBounds = previousIndexOfNotChar (text, " \n", sentenceEnd2 + 1) + 1;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_START: {
+                    int lineStart1 = previousIndexOfChar (text, "\n", offset);
+                    if (lineStart1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = lineStart1 + 1;
+                    startBounds = previousIndexOfChar (text, "\n", lineStart1) + 1;
+                    break;
+                }
+                case ATK.ATK_TEXT_BOUNDARY_LINE_END: {
+                    int lineEnd1 = previousIndexOfChar (text, "\n", offset);
+                    if (lineEnd1 is -1) {
+                        startBounds = endBounds = 0;
+                        break;
+                    }
+                    endBounds = lineEnd1;
+                    startBounds = previousIndexOfChar (text, "\n", lineEnd1);
+                    if (startBounds is -1) startBounds = 0;
+                    break;
+                }
+                default:
+            }
+            *start_offset=startBounds;
+            *end_offset=endBounds;
+            text = text[startBounds .. endBounds];
+            auto result = cast(char*)OS.g_malloc (text.length+1);
+            result[ 0 .. text.length ] = text;
+            result[ text.length ] = '\0';
+            return result;
+        }
+        return null;
+    }
+
+    AccessibleListener[] getAccessibleListeners () {
+        if (accessible is null) return new AccessibleListener [0];
+        AccessibleListener[] result = accessible.getAccessibleListeners ();
+        return result !is null ? result : new AccessibleListener [0];
+    }
+
+    static AccessibleObject getAccessibleObject (AtkObject* atkObject) {
+        return AccessibleObjects[atkObject];
+    }
+
+    AccessibleObject getChildByHandle (AtkObject* handle) {
+        return children[handle];
+    }
+
+    AccessibleObject getChildByID (int childId) {
+        if (childId is ACC.CHILDID_SELF) return this;
+        foreach( object; children ){
+            if (object.id is childId) return object;
+        }
+        return null;
+    }
+
+    AccessibleObject getChildByIndex (int childIndex) {
+        foreach( object; children ){
+            if (object.index is childIndex) return object;
+        }
+        return null;
+    }
+
+    AccessibleControlListener[] getControlListeners () {
+        if (accessible is null) return new AccessibleControlListener [0];
+        AccessibleControlListener[] result = accessible.getControlListeners ();
+        return result !is null ? result : new AccessibleControlListener [0];
+    }
+
+    String getText () {
+        char* parentResult;
+        String parentText = ""; //$NON-NLS-1$
+        if (ATK.g_type_is_a (parentType, ATK_TEXT_TYPE)) {
+            auto textIface = cast(AtkTextIface*)ATK.g_type_interface_peek_parent (ATK.ATK_TEXT_GET_IFACE (handle));
+            int /*long*/ characterCount = 0;
+            if (textIface.get_character_count !is null) {
+                characterCount = textIface.get_character_count( handle);
+            }
+            if (characterCount > 0 && textIface.get_text !is null) {
+                parentResult = textIface.get_text( handle, 0, characterCount);
+                if (parentResult !is null) {
+                    parentText = fromStringz( parentResult ).dup;
+                }
+            }
+        }
+        AccessibleControlListener[] controlListeners = getControlListeners ();
+        if (controlListeners.length is 0) return parentText;
+        AccessibleControlEvent event = new AccessibleControlEvent (this);
+        event.childID = id;
+        event.result = parentText;
+        for (int i = 0; i < controlListeners.length; i++) {
+            controlListeners [i].getValue (event);
+        }
+        return event.result;
+    }
+
+    AccessibleTextListener[] getTextListeners () {
+        if (accessible is null) return new AccessibleTextListener [0];
+        AccessibleTextListener[] result = accessible.getTextListeners ();
+        return result !is null ? result : new AccessibleTextListener [0];
+    }
+
+    package static extern(C) void gObjectClass_finalize (GObject* atkObject) {
+        auto superType = ATK.g_type_class_peek_parent (ATK.G_OBJECT_GET_CLASS (cast(GTypeInstance*)atkObject));
+        auto objectClassStruct = cast(GObjectClass*)ATK.G_OBJECT_CLASS (cast(GTypeClass*)superType);
+        objectClassStruct.finalize(atkObject);
+        AccessibleObject object = getAccessibleObject (cast(AtkObject*)atkObject);
+        if (object !is null) {
+            AccessibleObjects.remove (cast(AtkObject*)atkObject);
+            object.release ();
+        }
+    }
+
+    static int nextIndexOfChar (String string, String searchChars, int startIndex) {
+        int result = string.length;
+        for (int i = 0; i < searchChars.length; i++) {
+            char current = searchChars[i];
+            int index = locate( string, current, startIndex );
+            if (index !is string.length ) result = Math.min (result, index);
+        }
+        return result;
+    }
+
+    static int nextIndexOfNotChar (String string, String searchChars, int startIndex) {
+        int length = string.length;
+        int index = startIndex;
+        while (index < length) {
+            char current = string[index];
+            if ( !contains( searchChars, current)) break;
+            index++;
+        }
+        return index;
+    }
+
+    static int previousIndexOfChar (String string, String searchChars, int startIndex) {
+        int result = -1;
+        if (startIndex < 0) return result;
+        string = string[0 .. startIndex];
+        for (int i = 0; i < searchChars.length ; i++) {
+            char current = searchChars[i];
+            int index = locatePrior( string, current);
+            if (index !is string.length ) result = Math.max (result, index);
+        }
+        return result;
+    }
+
+    static int previousIndexOfNotChar (String string, String searchChars, int startIndex) {
+        if (startIndex < 0) return -1;
+        int index = startIndex - 1;
+        while (index >= 0) {
+            char current = string[index];
+            if ( !contains(searchChars, current)) break;
+            index--;
+        }
+        return index;
+    }
+
+    void release () {
+        if (DEBUG) getDwtLogger().info( __FILE__, __LINE__, "AccessibleObject.release: {}", handle);
+        accessible = null;
+        foreach( child; children ){
+            if (child.isLightweight) OS.g_object_unref (child.handle);
+        }
+        if (parent !is null) parent.removeChild (this, false);
+    }
+
+    void removeChild (AccessibleObject child, bool unref) {
+        children.remove (child.handle);
+        if (unref && child.isLightweight) OS.g_object_unref (child.handle);
+    }
+
+    void selectionChanged () {
+        OS.g_signal_emit_by_name0 (handle, ATK.selection_changed.ptr);
+    }
+
+    void setFocus (int childID) {
+        updateChildren ();
+        AccessibleObject accObject = getChildByID (childID);
+        if (accObject !is null) {
+            ATK.atk_focus_tracker_notify (accObject.handle);
+        }
+    }
+
+    void setParent (AccessibleObject parent) {
+        this.parent = parent;
+    }
+
+    void textCaretMoved(int index) {
+        OS.g_signal_emit_by_name1 (handle, ATK.text_caret_moved.ptr, index);
+    }
+
+    void textChanged(int type, int startIndex, int length) {
+        if (type is ACC.TEXT_DELETE) {
+            OS.g_signal_emit_by_name2 (handle, ATK.text_changed_delete.ptr, startIndex, length);
+        } else {
+            OS.g_signal_emit_by_name2 (handle, ATK.text_changed_insert.ptr, startIndex, length);
+        }
+    }
+
+    void textSelectionChanged() {
+        OS.g_signal_emit_by_name0 (handle, ATK.text_selection_changed.ptr);
+    }
+
+    void updateChildren () {
+        if (isLightweight) return;
+        AccessibleControlListener[] listeners = getControlListeners ();
+        if (listeners.length is 0) return;
+
+        AccessibleControlEvent event = new AccessibleControlEvent (this);
+        for (int i = 0; i < listeners.length; i++) {
+            listeners [i].getChildren (event);
+        }
+        if (event.children !is null && event.children.length > 0) {
+            AtkObject*[] idsToKeep = new AtkObject*[]( children.length );
+            idsToKeep.length = 0;
+            if ( null !is (cast(Integer)event.children[0] )) {
+                /*  an array of child id's (Integers) was answered */
+                auto parentType = AccessibleFactory.getDefaultParentType ();
+                for (int i = 0; i < event.children.length; i++) {
+                    AccessibleObject object = getChildByIndex (i);
+                    if (object is null) {
+                        auto childType = AccessibleFactory.getChildType (accessible, i);
+                        object = new AccessibleObject (childType, null, accessible, parentType, true);
+                        AccessibleObjects[object.handle] = object;
+                        addChild (object);
+                        object.index = i;
+                    }
+                    if( auto intChild = cast(Integer)event.children[i] ){
+                        object.id = intChild.intValue ();
+                    }
+                    else {
+                        /* a non-ID value was given so don't set the ID */
+                    }
+                    idsToKeep ~= object.handle;
+                }
+            } else {
+                /* an array of Accessible children was answered */
+                int childIndex = 0;
+                for (int i = 0; i < event.children.length; i++) {
+                    AccessibleObject object = null;
+                    if( auto accChild = cast(Accessible)event.children[i] ){
+                        object = accChild.accessibleObject;
+                    } else {
+                        /* a non-Accessible value was given so nothing to do here */
+                    }
+                    if (object !is null) {
+                        object.index = childIndex++;
+                        idsToKeep ~= object.handle;
+                    }
+                }
+            }
+            /* remove old children that were not provided as children anymore */
+            foreach( id; children.keys ){
+                if ( !tango.core.Array.contains( idsToKeep, id )) {
+                    AccessibleObject object = cast(AccessibleObject) children[id];
+                    removeChild (object, true);
+                }
+            }
+        }
+    }
+}