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kbuildimageiofactory.cpp

00001 /*  This file is part of the KDE libraries
00002  *  Copyright (C) 2000 Waldo Bastian <bastian@kde.org>
00003  *
00004  *  This library is free software; you can redistribute it and/or
00005  *  modify it under the terms of the GNU Library General Public
00006  *  License version 2 as published by the Free Software Foundation.
00007  *
00008  *  This library is distributed in the hope that it will be useful,
00009  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00010  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011  *  Library General Public License for more details.
00012  *
00013  *  You should have received a copy of the GNU Library General Public License
00014  *  along with this library; see the file COPYING.LIB.  If not, write to
00015  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016  *  Boston, MA 02110-1301, USA.
00017  **/
00018 
00019 #include "ksycoca.h"
00020 #include "ksycocadict.h"
00021 #include "kresourcelist.h"
00022 
00023 #include <kglobal.h>
00024 #include <kstandarddirs.h>
00025 #include <kdebug.h>
00026 #include <klocale.h>
00027 #include <assert.h>
00028 
00029 #include <kimageiofactory.h>
00030 #include <kbuildimageiofactory.h>
00031 
00032 KBuildImageIOFactory::KBuildImageIOFactory() :
00033   KImageIOFactory()
00034 {
00035    m_resourceList = new KSycocaResourceList();
00036    m_resourceList->add( "services", "*.kimgio" );
00037 }
00038 
00039 // return all service types for this factory
00040 // i.e. first arguments to m_resourceList->add() above
00041 QStringList KBuildImageIOFactory::resourceTypes()
00042 {
00043     return QStringList() << "services";
00044 }
00045 
00046 KBuildImageIOFactory::~KBuildImageIOFactory() 
00047 {
00048    delete m_resourceList;
00049 }
00050 
00051 KSycocaEntry *
00052 KBuildImageIOFactory::createEntry( const QString& file, const char *resource )
00053 {
00054    QString fullPath = locate( resource, file);
00055 
00056    KImageIOFormat *format = new KImageIOFormat(fullPath);
00057    return format;
00058 }
00059 
00060 void
00061 KBuildImageIOFactory::addEntry(KSycocaEntry *newEntry, const char *resource)
00062 {
00063    KSycocaFactory::addEntry(newEntry, resource);
00064 
00065    KImageIOFormat *format = (KImageIOFormat *) newEntry;
00066    rPath += format->rPaths;
00067 
00068    // Since Qt doesn't allow us to unregister image formats
00069    // we have to make sure not to add them a second time.
00070    // This typically happens when the sycoca database is updated 
00071    // incremenatally
00072    for( KImageIOFormatList::ConstIterator it = formatList->begin(); 
00073            it != formatList->end();
00074            ++it )
00075    {
00076       KImageIOFormat *_format = (*it);
00077       if (format->mType == _format->mType)
00078       {
00079          // Already in list
00080          format = 0;
00081          break;
00082       }
00083    }
00084    if (format)
00085       formatList->append( format );
00086 }
00087 
00088 
00089 void
00090 KBuildImageIOFactory::saveHeader(QDataStream &str)
00091 {
00092    KSycocaFactory::saveHeader(str);
00093 
00094    str << mReadPattern << mWritePattern << rPath;
00095 }
00096 
00097 void
00098 KBuildImageIOFactory::save(QDataStream &str)
00099 {
00100    rPath.sort();
00101    // Remove duplicates from rPath:
00102    QString last;
00103    for(QStringList::Iterator it = rPath.begin();
00104        it != rPath.end(); )
00105    {
00106       QStringList::Iterator it2 = it++;
00107       if (*it2 == last)
00108       {
00109          // remove duplicate
00110          rPath.remove(it2);
00111       }
00112       else
00113       {
00114          last = *it2;
00115       }
00116    }
00117    mReadPattern = createPattern( KImageIO::Reading );
00118    mWritePattern = createPattern( KImageIO::Writing );
00119 
00120    KSycocaFactory::save(str);
00121 }
00122
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kbuildimageiofactory.cpp

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