messageviewer/iconnamecache.cpp

   1 /* Copyright 2009 Thomas McGuire <mcguire@kde.org>
   2
   3    This library is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU Library General Public License as published
   5    by the Free Software Foundation; either version 2 of the License or
   6    ( at your option ) version 3 or, at the discretion of KDE e.V.
   7    ( which shall act as a proxy as in section 14 of the GPLv3 ), any later version.
   8
   9    This library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public License
  15    along with this library; see the file COPYING.LIB.  If not, write to
  16    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17    Boston, MA 02110-1301, USA.
  18 */
  19 #include "iconnamecache.h"
  20
  21 #include <KGlobal>
  22 #include <KIconLoader>
  23
  24 namespace MessageViewer {
  25 K_GLOBAL_STATIC( IconNameCache, s_iconNameCache )
  26
  27 IconNameCache* IconNameCache::instance()
  28 {
  29   return s_iconNameCache;
  30 }
  31
  32 bool IconNameCache::Entry::operator < ( const Entry &other ) const
  33 {
  34   const int fileNameCompare = fileName.compare( other.fileName );
  35   if ( fileNameCompare != 0 )
  36     return fileNameCompare < 0;
  37   else
  38     return size < other.size;
  39 }
  40
  41 QString IconNameCache::iconPath( const QString &name, int size ) const
  42 {
  43   Entry entry;
  44   entry.fileName = name;
  45   entry.size = size;
  46
  47   if ( mCachedEntries.contains( entry ) )
  48     return mCachedEntries.value( entry );
  49
  50   const QString fileName = KIconLoader::global()->iconPath( name, size );
  51   mCachedEntries.insert( entry, fileName );
  52   return fileName;
  53 }
  54 }