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