Back to index

lightning-sunbird  0.9+nobinonly
nsISVGValueUtils.h
Go to the documentation of this file.
00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Mozilla SVG project.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Crocodile Clips Ltd..
00019  * Portions created by the Initial Developer are Copyright (C) 2002
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
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 #ifndef __NS_ISVGVALUEUTILS_H__
00040 #define __NS_ISVGVALUEUTILS_H__
00041 
00042 
00043 
00044 // NS_ADD_SVGVALUE_OBSERVER() : 
00045 // add *this* as an observer to 'value'
00046 
00047 #define NS_ADD_SVGVALUE_OBSERVER(value)                               \
00048   PR_BEGIN_MACRO                                                      \
00049   {                                                                   \
00050     nsCOMPtr<nsISVGValue> v = do_QueryInterface(value);               \
00051     NS_ASSERTION(v, "can't find nsISVGValue interface on " #value );  \
00052     if (v)                                                            \
00053       v->AddObserver(this);                                           \
00054   }                                                                   \
00055   PR_END_MACRO
00056 
00057 
00058 
00059 // NS_REMOVE_SVGVALUE_OBSERVER() :
00060 // remove *this* as an observer to 'value'
00061 
00062 #define NS_REMOVE_SVGVALUE_OBSERVER(value)                            \
00063   PR_BEGIN_MACRO                                                      \
00064   {                                                                   \
00065     nsCOMPtr<nsISVGValue> v = do_QueryInterface(value);               \
00066     NS_ASSERTION(v, "can't find nsISVGValue interface on " #value );  \
00067     if (v)                                                            \
00068       v->RemoveObserver(this);                                        \
00069   }                                                                   \
00070   PR_END_MACRO
00071 
00072   
00073 
00074 #endif // __NS_ISVGVALUEUTILS_H__