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/*
* This file is part of the KDE project, added by Bryce Nesbitt
*
* This is a plugin for Konqeror/KFile which processes 'extra' information
* contained in a .gif image file (In particular the comment, and resolution).
*
**************************************
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <stdlib.h>
#include "kfile_gif.h"
#include <kurl.h>
#include <kprocess.h>
#include <klocale.h>
#include <kgenericfactory.h>
#include <kdebug.h>
#include <tqcstring.h>
#include <tqfile.h>
#include <tqdatetime.h>
#include <tqdict.h>
#include <tqvalidator.h>
#include <tqimage.h>
typedef KGenericFactory<KGifPlugin> GifFactory;
K_EXPORT_COMPONENT_FACTORY(kfile_gif, GifFactory("kfile_gif"))
KGifPlugin::KGifPlugin(TQObject *parent, const char *name,
const TQStringList &args)
: KFilePlugin(parent, name, args)
{
kdDebug(7034) << "gif KFileMetaInfo plugin\n";
KFileMimeTypeInfo* info = addMimeTypeInfo( "image/gif" );
KFileMimeTypeInfo::GroupInfo* group = 0L;
group = addGroupInfo(info, "General", i18n("General"));
KFileMimeTypeInfo::ItemInfo* item;
item = addItemInfo(group, "Version", i18n("Version"), TQVariant::String);
item = addItemInfo( group, "Dimensions", i18n("Dimensions"), TQVariant::Size );
setHint( item, KFileMimeTypeInfo::Size );
setUnit( item, KFileMimeTypeInfo::Pixels );
item = addItemInfo(group, "BitDepth", i18n("Bit Depth"), TQVariant::Int);
setUnit(item, KFileMimeTypeInfo::BitsPerPixel);
}
bool KGifPlugin::readInfo( KFileMetaInfo& info, uint what )
{
Q_UNUSED( what );
kdDebug(7034) << "gif KFileMetaInfo readInfo\n";
TQFile file(info.path());
if (!file.open(IO_ReadOnly)) {
kdDebug(7034) << "Couldn't open " << TQFile::encodeName(info.path()) << endl;
return false;
}
TQDataStream fstream(&file);
bool isGIF87a = false;
char magic[7];
Q_UINT16 width = 0;
Q_UINT16 height = 0;
Q_UINT8 miscInfo = 0;
fstream.readRawBytes( magic, 6 );
magic[6] = 0x00; // null terminate
// I have special requirements...
fstream.setByteOrder( TQDataStream::LittleEndian );
fstream >> width;
fstream >> height;
fstream >> miscInfo;
KFileMetaInfoGroup group = appendGroup(info, "General");
if ( 0 == strncmp( magic, "GIF89a", 6 ) ) {
appendItem( group, "Version", i18n("GIF Version 89a") );
} else if ( 0 == strncmp( magic, "GIF87a", 6 ) ) {
appendItem( group, "Version", i18n("GIF Version 87a") );
isGIF87a = true;
} else {
appendItem( group, "Version", i18n("Unknown") );
}
appendItem( group, "Dimensions", TQSize(width, height) );
if ( isGIF87a ) {
appendItem( group, "BitDepth", ( (miscInfo & 0x07) + 1) );
}
file.close();
return true;
}
#include "kfile_gif.moc"
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