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/* This file is part of the KDE project
* Copyright (C) 2004 Melchior FRANZ <mfranz@kde.org>
*
* 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_rgb.h"
#include <qfile.h>
#include <qvalidator.h>
#include <kdebug.h>
#include <kgenericfactory.h>
typedef KGenericFactory<KRgbPlugin> RgbFactory;
K_EXPORT_COMPONENT_FACTORY(kfile_rgb, RgbFactory("kfile_rgb"))
KRgbPlugin::KRgbPlugin(QObject *parent, const char *name, const QStringList &args) :
KFilePlugin(parent, name, args)
{
KFileMimeTypeInfo* info = addMimeTypeInfo("image/x-rgb");
KFileMimeTypeInfo::GroupInfo* group = 0;
KFileMimeTypeInfo::ItemInfo* item;
group = addGroupInfo(info, "Comment", i18n("Comment"));
item = addItemInfo(group, "ImageName", i18n("Name"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
setHint(item, KFileMimeTypeInfo::Description);
group = addGroupInfo(info, "Technical", i18n("Technical Details"));
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, "ColorMode", i18n("Color Mode"), QVariant::String);
item = addItemInfo(group, "Compression", i18n("Compression"), QVariant::String);
item = addItemInfo(group, "SharedRows",
i18n("percentage of avoided vertical redundancy (the higher the better)",
"Shared Rows"), QVariant::String);
}
bool KRgbPlugin::readInfo(KFileMetaInfo& info, uint /*what*/)
{
QFile file(info.path());
if (!file.open(IO_ReadOnly)) {
kdDebug(7034) << "Couldn't open " << QFile::encodeName(info.path()) << endl;
return false;
}
QDataStream dstream(&file);
Q_UINT16 magic;
Q_UINT8 storage;
Q_UINT8 bpc;
Q_UINT16 dimension;
Q_UINT16 xsize;
Q_UINT16 ysize;
Q_UINT16 zsize;
Q_UINT32 pixmin;
Q_UINT32 pixmax;
Q_UINT32 dummy;
char imagename[80];
Q_UINT32 colormap;
dstream >> magic;
dstream >> storage;
dstream >> bpc;
dstream >> dimension;
dstream >> xsize;
dstream >> ysize;
dstream >> zsize;
dstream >> pixmin;
dstream >> pixmax;
dstream >> dummy;
dstream.readRawBytes(imagename, 80);
imagename[79] = '\0';
dstream >> colormap;
Q_UINT8 u8;
for (uint i = 0; i < 404; i++)
dstream >> u8;
if (magic != 474)
return false;
KFileMetaInfoGroup group;
group = appendGroup(info, "Technical");
if (dimension == 1)
ysize = 1;
appendItem(group, "Dimensions", QSize(xsize, ysize));
appendItem(group, "BitDepth", zsize * 8 * bpc);
if (zsize == 1)
appendItem(group, "ColorMode", i18n("Grayscale"));
else if (zsize == 2)
appendItem(group, "ColorMode", i18n("Grayscale/Alpha"));
else if (zsize == 3)
appendItem(group, "ColorMode", i18n("RGB"));
else if (zsize == 4)
appendItem(group, "ColorMode", i18n("RGB/Alpha"));
if (!storage)
appendItem(group, "Compression", i18n("Uncompressed"));
else if (storage == 1) {
long compressed = file.size() - 512;
long verbatim = xsize * ysize * zsize;
appendItem(group, "Compression", i18n("Runlength Encoded")
+ QString(", %1%").arg(compressed * 100.0 / verbatim, 0, 'f', 1));
long k;
Q_UINT32 offs;
QMap<Q_UINT32, uint> map;
QMap<Q_UINT32, uint>::Iterator it;
QMap<Q_UINT32, uint>::Iterator end = map.end();
for (k = 0; k < (ysize * zsize); k++) {
dstream >> offs;
if ((it = map.find(offs)) != end)
map.replace(offs, it.data() + 1);
else
map[offs] = 0;
}
for (k = 0, it = map.begin(); it != end; ++it)
k += it.data();
if (k)
appendItem(group, "SharedRows", QString("%1%").arg(k * 100.0
/ (ysize * zsize), 0, 'f', 1));
else
appendItem(group, "SharedRows", i18n("None"));
} else
appendItem(group, "Compression", i18n("Unknown"));
group = appendGroup(info, "Comment");
appendItem(group, "ImageName", imagename);
file.close();
return true;
}
bool KRgbPlugin::writeInfo(const KFileMetaInfo& info) const
{
QFile file(info.path());
if (!file.open(IO_WriteOnly|IO_Raw)) {
kdDebug(7034) << "couldn't open " << QFile::encodeName(info.path()) << endl;
return false;
}
if (!file.at(24)) {
kdDebug(7034) << "couldn't set offset" << endl;
return false;
}
QDataStream dstream(&file);
QString s = info["Comment"]["ImageName"].value().toString();
s.truncate(79);
unsigned i;
for (i = 0; i < s.length(); i++)
dstream << Q_UINT8(s.latin1()[i]);
for (; i < 80; i++)
dstream << Q_UINT8(0);
file.close();
return true;
}
// restrict to 79 ASCII characters
QValidator* KRgbPlugin::createValidator(const QString&, const QString &,
const QString &, QObject* parent, const char* name) const
{
return new QRegExpValidator(QRegExp("[\x0020-\x007E]{79}"), parent, name);
}
#include "kfile_rgb.moc"
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