QGpGuiTools/Cast.h
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00001 /***************************************************************************
00002 **
00003 **  This file is part of QGpGuiTools.
00004 **
00005 **  This library is free software; you can redistribute it and/or
00006 **  modify it under the terms of the GNU Lesser General Public
00007 **  License as published by the Free Software Foundation; either
00008 **  version 2.1 of the License, or (at your option) any later version.
00009 **
00010 **  This file is distributed in the hope that it will be useful, but WITHOUT
00011 **  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 **  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
00013 **  License for more details.
00014 **
00015 **  You should have received a copy of the GNU Lesser General Public
00016 **  License along with this library; if not, write to the Free Software
00017 **  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00018 **
00019 **  See http://www.geopsy.org for more information.
00020 **
00021 **  Created : 2005-07-26
00022 **  Authors :
00023 **    Marc Wathelet
00024 **    Marc Wathelet (LGIT, Grenoble, France)
00025 **
00026 ***************************************************************************/
00027 
00028 #ifndef CAST_H
00029 #define CAST_H
00030 
00031 #include <QtGui>
00032 
00033 namespace QGpGuiTools {
00034 
00035 class Cast
00036 {
00037 public:
00038   template <typename T> static T getTab(QTabWidget * tab, QString tabName);
00039   template <typename TIn, typename TOut> static TOut getFirst(QList<TIn> list);
00040 };
00041 
00042 template <typename T> T Cast::getTab(QTabWidget * tab, QString tabName)
00043 {
00044   T w=0;
00045   for(int i=tab->count() - 1; w==0 && i >= 0 ;i-- ) {
00046     w=qobject_cast<T>(tab ->widget(i) );
00047     if(w && w->objectName()!=tabName) w=0;
00048   }
00049   return w;
00050 }
00051 
00052 template <typename TIn, typename TOut> TOut Cast::getFirst(QList<TIn> list)
00053 {
00054   typedef typename QList<TIn>::iterator ListIterator;
00055   ListIterator it;
00056   TOut obj;
00057   for(it=list.begin();it!=list.end();++it) {
00058     obj=qobject_cast<TOut>( *it);
00059     if(obj) return obj;
00060   }
00061   return 0;
00062 }
00063 
00064 } // namespace QGpGuiTools
00065 
00066 #endif // CAST_H
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