Back to index

lightning-sunbird  0.9+nobinonly
nsBidiFrames.cpp
Go to the documentation of this file.
00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is mozilla.org code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * IBM Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 2000
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either of the GNU General Public License Version 2 or later (the "GPL"),
00027  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifdef IBMBIDI
00040 
00041 #include "nsBidiFrames.h"
00042 #include "nsLayoutAtoms.h"
00043 
00044 
00045 nsDirectionalFrame::nsDirectionalFrame(PRUnichar aChar)
00046   : mChar(aChar)
00047 {
00048 }
00049 
00050 nsDirectionalFrame::~nsDirectionalFrame()
00051 {
00052 }
00053 
00054 PRUnichar
00055 nsDirectionalFrame::GetChar(void) const
00056 {
00057   return mChar;
00058 }
00059 
00065 nsIAtom*
00066 nsDirectionalFrame::GetType() const
00067 { 
00068   return nsLayoutAtoms::directionalFrame; 
00069 }
00070   
00071 const nsIID&
00072 nsDirectionalFrame::GetIID()
00073 {
00074   static nsIID iid = NS_DIRECTIONAL_FRAME_IID;
00075   return iid;
00076 }
00077 
00078 NS_IMETHODIMP
00079 nsDirectionalFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
00080 {
00081   nsresult rv = NS_NOINTERFACE;
00082 
00083   if (!aInstancePtr) {
00084     rv = NS_ERROR_NULL_POINTER;
00085   }
00086   else if (aIID.Equals(NS_GET_IID(nsDirectionalFrame) ) ) {
00087     *aInstancePtr = (void*) this;
00088     rv = NS_OK;
00089   }
00090   return rv;
00091 }
00092 
00093 void*
00094 nsDirectionalFrame::operator new(size_t aSize) CPP_THROW_NEW
00095 {
00096   void* frame = ::operator new(aSize);
00097   if (frame) {
00098     memset(frame, 0, aSize);
00099   }
00100   return frame;
00101 }
00102 
00103 nsresult
00104 NS_NewDirectionalFrame(nsIFrame** aNewFrame, PRUnichar aChar)
00105 {
00106   NS_PRECONDITION(aNewFrame, "null OUT ptr");
00107   if (nsnull == aNewFrame) {
00108     return NS_ERROR_NULL_POINTER;
00109   }
00110   nsDirectionalFrame* frame = new nsDirectionalFrame(aChar);
00111   *aNewFrame = frame;
00112   if (nsnull == frame) {
00113     return NS_ERROR_OUT_OF_MEMORY;
00114   }
00115   return NS_OK;
00116 }
00117 
00118 #endif /* IBMBIDI */