diff options
Diffstat (limited to 'kfile-plugins/bmp/kfile_bmp.cpp')
| -rw-r--r-- | kfile-plugins/bmp/kfile_bmp.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/kfile-plugins/bmp/kfile_bmp.cpp b/kfile-plugins/bmp/kfile_bmp.cpp new file mode 100644 index 00000000..b9d6a7ad --- /dev/null +++ b/kfile-plugins/bmp/kfile_bmp.cpp @@ -0,0 +1,174 @@ +/* This file is part of the KDE project + * Copyright (C) 2002 Shane Wright <me@shanewright.co.uk> + * + * 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 <config.h> +#include "kfile_bmp.h" + +#include <kprocess.h> +#include <klocale.h> +#include <kgenericfactory.h> +#include <kstringvalidator.h> +#include <kdebug.h> + +#include <qdict.h> +#include <qvalidator.h> +#include <qcstring.h> +#include <qfile.h> +#include <qdatetime.h> + +#if !defined(__osf__) +#include <inttypes.h> +#else +typedef unsigned long uint32_t; +typedef unsigned short uint16_t; +#endif + +typedef KGenericFactory<KBmpPlugin> BmpFactory; + +K_EXPORT_COMPONENT_FACTORY(kfile_bmp, BmpFactory( "kfile_bmp" )) + +KBmpPlugin::KBmpPlugin(QObject *parent, const char *name, + const QStringList &args) + + : KFilePlugin(parent, name, args) +{ + KFileMimeTypeInfo* info = addMimeTypeInfo( "image/x-bmp" ); + + KFileMimeTypeInfo::GroupInfo* group = 0L; + + group = addGroupInfo(info, "Technical", i18n("Technical Details")); + + KFileMimeTypeInfo::ItemInfo* item; + + item = addItemInfo(group, "Type", i18n("Type"), QVariant::String); + + item = addItemInfo(group, "Dimensions", i18n("Dimensions"), QVariant::Size); + setHint( item, KFileMimeTypeInfo::Size ); + setUnit(item, KFileMimeTypeInfo::Pixels); + + item = addItemInfo(group, "BitDepth", i18n("Bit Depth"), QVariant::Int); + setUnit(item, KFileMimeTypeInfo::BitsPerPixel); + + item = addItemInfo(group, "Compression", i18n("Compression"), QVariant::String); + +} + + +bool KBmpPlugin::readInfo( KFileMetaInfo& info, uint what) +{ + const char * bmptype_bm = "BM"; + const char * bmptype_ba = "BA"; + const char * bmptype_ci = "CI"; + const char * bmptype_cp = "CP"; + const char * bmptype_ic = "IC"; + const char * bmptype_pt = "PT"; + + QFile file(info.path()); + + if (!file.open(IO_ReadOnly)) + { + kdDebug(7034) << "Couldn't open " << QFile::encodeName(info.path()) << endl; + return false; + } + + QDataStream dstream(&file); + + // BMP files are little-endian + dstream.setByteOrder(QDataStream::LittleEndian); + + // create this now because we output image type early on + KFileMetaInfoGroup group = appendGroup(info, "Technical"); + + + // read the beginning of the file and make sure it looks ok + unsigned char * bmp_id = (unsigned char *) malloc(2); + file.readBlock((char *) bmp_id, 2); + + if (memcmp(bmp_id, bmptype_bm, 2) == 0) { + appendItem(group, "Type", i18n("Windows Bitmap")); + } else if (memcmp(bmp_id, bmptype_ba, 2) == 0) { + appendItem(group, "Type", i18n("OS/2 Bitmap Array")); + } else if (memcmp(bmp_id, bmptype_ci, 2) == 0) { + appendItem(group, "Type", i18n("OS/2 Color Icon")); + } else if (memcmp(bmp_id, bmptype_cp, 2) == 0) { + appendItem(group, "Type", i18n("OS/2 Color Pointer")); + } else if (memcmp(bmp_id, bmptype_ic, 2) == 0) { + appendItem(group, "Type", i18n("OS/2 Icon")); + } else if (memcmp(bmp_id, bmptype_pt, 2) == 0) { + appendItem(group, "Type", i18n("OS/2 Pointer")); + } else { + return false; + } + + free(bmp_id); + + + // read the next bits, we ignore them, but anyways... + uint32_t bmp_size; + uint16_t bmp_reserved1; + uint16_t bmp_reserved2; + uint32_t bmp_offbits; + + dstream >> bmp_size; + dstream >> bmp_reserved1; + dstream >> bmp_reserved2; + dstream >> bmp_offbits; + + + // we should now be at the file info structure + uint32_t bmpi_size; + uint32_t bmpi_width; + uint32_t bmpi_height; + uint16_t bmpi_planes; + uint16_t bmpi_bitcount; + uint32_t bmpi_compression; + + dstream >> bmpi_size; + dstream >> bmpi_width; + dstream >> bmpi_height; + dstream >> bmpi_planes; + dstream >> bmpi_bitcount; + dstream >> bmpi_compression; + + + // output the useful bits + appendItem(group, "Dimensions", QSize(bmpi_width, bmpi_height)); + appendItem(group, "BitDepth", bmpi_bitcount); + + switch (bmpi_compression) { + case 0 : + appendItem(group, "Compression", i18n("None")); + break; + case 1 : + appendItem(group, "Compression", i18n("RLE 8bit/pixel")); + break; + case 2 : + appendItem(group, "Compression", i18n("RLE 4bit/pixel")); + break; + case 3 : + appendItem(group, "Compression", i18n("Bitfields")); + break; + default : + appendItem(group, "Compression", i18n("Unknown")); + } + + return true; +} + +#include "kfile_bmp.moc" |