ImageManager/ImageDecoder.cpp

   1 /* Copyright (C) 2003-2006 Jesper K. Pedersen <blackie@kde.org>
   2
   3    This program is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU General Public
   5    License as published by the Free Software Foundation; either
   6    version 2 of the License, or (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11    General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program; see the file COPYING.  If not, write to
  15    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16    Boston, MA 02110-1301, USA.
  17 */
  18 #include "ImageDecoder.h"
  19 #include <Q3PtrList>
  20
  21 Q3PtrList<ImageManager::ImageDecoder>* ImageManager::ImageDecoder::decoders()
  22 {
  23         static Q3PtrList<ImageDecoder> s_decoders;
  24         return &s_decoders;
  25 }
  26
  27 ImageManager::ImageDecoder::ImageDecoder()
  28 {
  29         decoders()->append(this);
  30 }
  31
  32 ImageManager::ImageDecoder::~ImageDecoder()
  33 {
  34         decoders()->remove(this);
  35 }
  36
  37 bool ImageManager::ImageDecoder::decode(QImage *img, const QString& imageFile, QSize* fullSize, int dim)
  38 {
  39         Q3PtrList<ImageDecoder>* lst = decoders();
  40         for( Q3PtrList<ImageDecoder>::const_iterator it = lst->begin(); it != lst->end(); ++it ) {
  41                 if( (*it)->_decode(img,imageFile,fullSize,dim) ) return true;
  42         }
  43         return false;
  44 }
  45
  46 bool ImageManager::ImageDecoder::mightDecode( const QString& imageFile )
  47 {
  48         Q3PtrList<ImageDecoder>* lst = decoders();
  49         for( Q3PtrList<ImageDecoder>::const_iterator it = lst->begin(); it != lst->end(); ++it ) {
  50                 if( (*it)->_mightDecode(imageFile) ) return true;
  51         }
  52         return false;
  53 }