Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 531 insertions, 0 deletions

diff --git a/kfile-plugins/jpeg/kfile_jpeg.cpp b/kfile-plugins/jpeg/kfile_jpeg.cpp
new file mode 100644
index 00000000..d302cf65
--- /dev/null
+++ b/kfile-plugins/jpeg/kfile_jpeg.cpp
@@ -0,0 +1,531 @@
+/* This file is part of the KDE project
+ * Copyright (C) 2002 Frank Pieczynski <pieczy@knuut.de>,
+ *               2002 Carsten Pfeiffer <pfeiffer@kde.org>
+ * based on the jhead tool of Matthias Wandel (see below)
+ *
+ * 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_jpeg.h"
+
+#include <kurl.h>
+#include <kprocess.h>
+#include <klocale.h>
+#include <kgenericfactory.h>
+#include <kdebug.h>
+
+#include <qcstring.h>
+#include <qfile.h>
+#include <qdatetime.h>
+#include <qdict.h>
+#include <qvalidator.h>
+#include <qimage.h>
+
+#include "exif.h"
+
+#define EXIFGROUP "Jpeg EXIF Data"
+
+typedef KGenericFactory<KJpegPlugin> JpegFactory;
+
+K_EXPORT_COMPONENT_FACTORY(kfile_jpeg, JpegFactory("kfile_jpeg"))
+
+KJpegPlugin::KJpegPlugin(QObject *parent, const char *name,
+                       const QStringList &args )
+    : KFilePlugin(parent, name, args)
+{
+  kdDebug(7034) << "jpeg plugin\n";
+
+  //
+  // define all possible meta info items
+  //
+  KFileMimeTypeInfo *info = addMimeTypeInfo("image/jpeg");
+  KFileMimeTypeInfo::GroupInfo *exifGroup = addGroupInfo( info, EXIFGROUP,
+                                                          i18n("JPEG Exif") );
+  KFileMimeTypeInfo::ItemInfo* item;
+
+  item = addItemInfo( exifGroup, "Comment", i18n("Comment"), QVariant::String);
+  setAttributes( item,
+                 KFileMimeTypeInfo::Modifiable |
+                 KFileMimeTypeInfo::Addable |
+                 KFileMimeTypeInfo::MultiLine );
+
+  item = addItemInfo( exifGroup, "Manufacturer", i18n("Camera Manufacturer"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Model", i18n("Camera Model"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Date/time", i18n("Date/Time"),
+                      QVariant::DateTime );
+
+  item = addItemInfo( exifGroup, "CreationDate", i18n("Creation Date"),
+                      QVariant::Date );
+
+  item = addItemInfo( exifGroup, "CreationTime", i18n("Creation Time"),
+                      QVariant::Time );
+
+  item = addItemInfo( exifGroup, "Dimensions", i18n("Dimensions"),
+                      QVariant::Size );
+  setHint( item, KFileMimeTypeInfo::Size );
+  setUnit( item, KFileMimeTypeInfo::Pixels );
+
+  item = addItemInfo( exifGroup, "Orientation", i18n("Orientation"),
+                      QVariant::Int );
+
+  item = addItemInfo( exifGroup, "ColorMode", i18n("Color Mode"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Flash used", i18n("Flash Used"),
+                      QVariant::String );
+  item = addItemInfo( exifGroup, "Focal length", i18n("Focal Length"),
+                      QVariant::String );
+  setUnit( item, KFileMimeTypeInfo::Millimeters );
+
+  item = addItemInfo( exifGroup, "35mm equivalent", i18n("35mm Equivalent"),
+                      QVariant::Int );
+  setUnit( item, KFileMimeTypeInfo::Millimeters );
+
+  item = addItemInfo( exifGroup, "CCD width", i18n("CCD Width"),
+                      QVariant::String );
+  setUnit( item, KFileMimeTypeInfo::Millimeters );
+
+  item = addItemInfo( exifGroup, "Exposure time", i18n("Exposure Time"),
+                      QVariant::String );
+  setHint( item, KFileMimeTypeInfo::Seconds );
+
+  item = addItemInfo( exifGroup, "Aperture", i18n("Aperture"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Focus dist.", i18n("Focus Dist."),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Exposure bias", i18n("Exposure Bias"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Whitebalance", i18n("Whitebalance"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Metering mode", i18n("Metering Mode"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Exposure", i18n("Exposure"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "ISO equiv.", i18n("ISO Equiv."),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "JPEG quality", i18n("JPEG Quality"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "User comment", i18n("User Comment"),
+                      QVariant::String );
+  setHint(item,  KFileMimeTypeInfo::Description);
+
+  item = addItemInfo( exifGroup, "JPEG process", i18n("JPEG Process"),
+                      QVariant::String );
+
+  item = addItemInfo( exifGroup, "Thumbnail", i18n("Thumbnail"),
+                      QVariant::Image );
+  setHint( item, KFileMimeTypeInfo::Thumbnail );
+
+//  ###
+//   exifGroup.setSupportsVariableKeys(true);
+}
+
+QValidator* KJpegPlugin::createValidator(const KFileMetaInfoItem& /*item*/,
+                                        QObject */*parent*/,
+                                         const char */*name*/ ) const
+{
+    // no need to return a validator that validates everything as OK :)
+//     if (item.isEditable())
+//         return new QRegExpValidator(QRegExp(".*"), parent, name);
+//     else
+    return 0L;
+}
+
+bool KJpegPlugin::writeInfo( const KFileMetaInfo& info ) const
+{
+    QString comment = info[EXIFGROUP].value("Comment").toString();
+    QString path    = info.path();
+
+    kdDebug(7034) << "exif writeInfo: " << info.path() << " \"" << comment << "\"\n";
+
+    /*
+        Do a strictly safe insertion of the comment:
+
+        Scan original to verify it's a proper jpeg
+        Open a unique temporary file in this directory
+        Write temporary, replacing all COM blocks with this one.
+        Scan temporary, to verify it's a proper jpeg
+        Rename original to another unique name
+        Rename temporary to original
+        Unlink original
+    */
+    /*
+        The jpeg standard does not regulate the contents of the COM block.
+        I'm assuming the best thing to do here is write as unicode utf-8,
+        which is fully backwards compatible with readers expecting ascii.
+        Readers expecting a national character set are out of luck...
+    */
+    if( safe_copy_and_modify( QFile::encodeName( path ), comment.utf8() ) ) {
+            return false;
+        }
+    return true;
+}
+
+bool KJpegPlugin::readInfo( KFileMetaInfo& info, uint what )
+{
+    const QString path( info.path() );
+    if ( path.isEmpty() ) // remote file
+        return false;
+
+    QString tag;
+    ExifData ImageInfo;
+
+    // parse the jpeg file now
+    try {
+        if ( !ImageInfo.scan(info.path()) ) {
+            kdDebug(7034) << "Not a JPEG file!\n";
+            return false;
+        }
+    }
+    catch (FatalError& e) { // malformed exif data?
+        kdDebug(7034) << "Exception caught while parsing Exif data of: " << info.path() << endl;
+        e.debug_print();
+        return false;
+    }
+
+    KFileMetaInfoGroup exifGroup = appendGroup( info, EXIFGROUP );
+
+    tag = ImageInfo.getComment();
+    if ( tag.length() ) {
+        kdDebug(7034) << "exif inserting Comment: " << tag << "\n";
+        appendItem( exifGroup, "Comment", tag );
+    } else {
+        appendItem( exifGroup, "Comment", tag );    // So user can add new comment
+    }
+
+    tag = ImageInfo.getCameraMake();
+    if (tag.length())
+    	appendItem( exifGroup, "Manufacturer", tag );
+
+    tag = ImageInfo.getCameraModel();
+    if (tag.length())
+        appendItem( exifGroup, "Model", tag );
+
+    tag = ImageInfo.getDateTime();
+    if (tag.length()){
+        QDateTime dt = parseDateTime( tag.stripWhiteSpace() );
+        if ( dt.isValid() ) {
+            appendItem( exifGroup, "Date/time", dt );
+            appendItem( exifGroup, "CreationDate", dt.date() );
+            appendItem( exifGroup, "CreationTime", dt.time() );
+        }
+    }
+
+    appendItem( exifGroup,"Dimensions", QSize( ImageInfo.getWidth(),
+                                               ImageInfo.getHeight() ) );
+
+    if ( ImageInfo.getOrientation() )
+        appendItem( exifGroup, "Orientation", ImageInfo.getOrientation() );
+
+    appendItem( exifGroup, "ColorMode", ImageInfo.getIsColor() ?
+                i18n("Color") : i18n("Black and white") );
+
+    int flashUsed = ImageInfo.getFlashUsed(); // -1, <set>
+    if ( flashUsed >= 0 ) {
+	 QString flash = i18n("Flash", "(unknown)");
+         switch ( flashUsed ) {
+         case 0: flash = i18n("Flash", "No");
+             break;
+         case 1:
+         case 5:
+         case 7:
+             flash = i18n("Flash", "Fired");
+             break;
+         case 9:
+         case 13:
+         case 15:
+             flash = i18n( "Flash", "Fill Fired" );
+             break;
+         case 16:
+             flash = i18n( "Flash", "Off" );
+             break;
+         case 24:
+             flash = i18n( "Flash", "Auto Off" );
+             break;
+         case 25:
+         case 29:
+         case 31:
+             flash = i18n( "Flash", "Auto Fired" );
+             break;
+         case 32:
+             flash = i18n( "Flash", "Not Available" );
+             break;
+         default:
+             break;
+        }
+        appendItem( exifGroup, "Flash used",
+                    flash );
+    }
+
+    if (ImageInfo.getFocalLength()){
+    	appendItem( exifGroup, "Focal length",
+                    QString().sprintf("%4.1f", ImageInfo.getFocalLength()) );
+
+        if (ImageInfo.getCCDWidth()){
+            appendItem( exifGroup, "35mm equivalent",
+                        (int)(ImageInfo.getFocalLength()/ImageInfo.getCCDWidth()*35 + 0.5) );
+	}
+    }
+
+    if (ImageInfo.getCCDWidth()){
+	appendItem( exifGroup, "CCD width",
+                    QString().sprintf("%4.2f", ImageInfo.getCCDWidth()) );
+    }
+
+    if (ImageInfo.getExposureTime()){
+        tag=QString().sprintf("%6.3f", ImageInfo.getExposureTime());
+        float exposureTime = ImageInfo.getExposureTime();
+	if (exposureTime > 0 && exposureTime <= 0.5){
+            tag+=QString().sprintf(" (1/%d)", (int)(0.5 + 1/exposureTime) );
+	}
+	appendItem( exifGroup, "Exposure time", tag );
+    }
+
+    if (ImageInfo.getApertureFNumber()){
+	appendItem( exifGroup, "Aperture",
+                    QString().sprintf("f/%3.1f",
+                                      (double)ImageInfo.getApertureFNumber()));
+    }
+
+    if (ImageInfo.getDistance()){
+        if (ImageInfo.getDistance() < 0){
+	    tag=i18n("Infinite");
+        }else{
+	    tag=QString().sprintf("%5.2fm",(double)ImageInfo.getDistance());
+        }
+    	appendItem( exifGroup, "Focus dist.", tag );
+    }
+
+    if (ImageInfo.getExposureBias()){
+	appendItem( exifGroup, "Exposure bias",
+                    QString().sprintf("%4.2f",
+                                      (double)ImageInfo.getExposureBias()) );
+    }
+
+    if (ImageInfo.getWhitebalance() != -1){
+        switch(ImageInfo.getWhitebalance()) {
+	case 0:
+	    tag=i18n("Unknown");
+	    break;
+	case 1:
+	    tag=i18n("Daylight");
+	    break;
+	case 2:
+	    tag=i18n("Fluorescent");
+	    break;
+	case 3:
+	    //tag=i18n("incandescent");
+	    tag=i18n("Tungsten");
+	    break;
+	case 17:
+	    tag=i18n("Standard light A");
+	    break;
+	case 18:
+	    tag=i18n("Standard light B");
+	    break;
+	case 19:
+	    tag=i18n("Standard light C");
+	    break;
+	case 20:
+	    tag=i18n("D55");
+	    break;
+	case 21:
+	    tag=i18n("D65");
+	    break;
+	case 22:
+	    tag=i18n("D75");
+	    break;
+	case 255:
+	    tag=i18n("Other");
+	    break;
+	default:
+            //23 to 254 = reserved
+	    tag=i18n("Unknown");
+	}
+  	appendItem( exifGroup, "Whitebalance", tag );
+    }
+
+    if (ImageInfo.getMeteringMode() != -1){
+        switch(ImageInfo.getMeteringMode()) {
+	case 0:
+	    tag=i18n("Unknown");
+	    break;
+	case 1:
+	    tag=i18n("Average");
+	    break;
+	case 2:
+	    tag=i18n("Center weighted average");
+	    break;
+	case 3:
+	    tag=i18n("Spot");
+	    break;
+	case 4:
+	    tag=i18n("MultiSpot");
+	    break;
+	case 5:
+	    tag=i18n("Pattern");
+	    break;
+	case 6:
+	    tag=i18n("Partial");
+	    break;
+	case 255:
+	    tag=i18n("Other");
+	    break;
+	default:
+	    // 7 to 254 = reserved
+	    tag=i18n("Unknown");
+	}
+	appendItem( exifGroup, "Metering mode", tag );
+    }
+
+    if (ImageInfo.getExposureProgram()){
+        switch(ImageInfo.getExposureProgram()) {
+	case 0:
+	    tag=i18n("Not defined");
+	    break;
+	case 1:
+	    tag=i18n("Manual");
+	    break;
+	case 2:
+	    tag=i18n("Normal program");
+	    break;
+	case 3:
+	    tag=i18n("Aperture priority");
+	    break;
+	case 4:
+	    tag=i18n("Shutter priority");
+	    break;
+	case 5:
+	    tag=i18n("Creative program\n(biased toward fast shutter speed)");
+	    break;
+	case 6:
+	    tag=i18n("Action program\n(biased toward fast shutter speed)");
+	    break;
+	case 7:
+	    tag=i18n("Portrait mode\n(for closeup photos with the background out of focus)");
+	    break;
+	case 8:
+	    tag=i18n("Landscape mode\n(for landscape photos with the background in focus)");
+	    break;
+	default:
+	    // 9 to 255 = reserved
+	    tag=i18n("Unknown");
+	}
+	appendItem( exifGroup, "Exposure", tag );
+    }
+
+    if (ImageInfo.getISOequivalent()){
+	appendItem( exifGroup, "ISO equiv.",
+                    QString().sprintf("%2d",
+                                      (int)ImageInfo.getISOequivalent()) );
+    }
+
+    if (ImageInfo.getCompressionLevel()){
+	switch(ImageInfo.getCompressionLevel()) {
+	case 1:
+	    tag=i18n("Basic");
+            break;
+	case 2:
+	    tag=i18n("Normal");
+	    break;
+        case 4:
+	    tag=i18n("Fine");
+	    break;
+	default:
+	    tag=i18n("Unknown");
+	}
+	appendItem( exifGroup, "JPEG quality", tag );
+    }
+
+    tag = ImageInfo.getUserComment();
+    if (tag.length()){
+	appendItem( exifGroup, "EXIF comment", tag );
+    }
+
+    int a;
+    for (a=0;;a++){
+        if (ProcessTable[a].Tag == ImageInfo.getProcess() || ProcessTable[a].Tag == 0){
+    	    appendItem( exifGroup, "JPEG process",
+                        QString::fromUtf8( ProcessTable[a].Desc) );
+            break;
+        }
+    }
+
+    if ( what & KFileMetaInfo::Thumbnail && !ImageInfo.isNullThumbnail() ){
+        appendItem( exifGroup, "Thumbnail", ImageInfo.getThumbnail() );
+    }
+
+  return true;
+}
+
+// format of the string is:
+// YYYY:MM:DD HH:MM:SS
+QDateTime KJpegPlugin::parseDateTime( const QString& string )
+{
+    QDateTime dt;
+    if ( string.length() != 19 )
+        return dt;
+
+    QString year    = string.left( 4 );
+    QString month   = string.mid( 5, 2 );
+    QString day     = string.mid( 8, 2 );
+    QString hour    = string.mid( 11, 2 );
+    QString minute  = string.mid( 14, 2 );
+    QString seconds = string.mid( 17, 2 );
+
+    bool ok;
+    bool allOk = true;
+    int y  = year.toInt( &ok );
+    allOk &= ok;
+
+    int mo = month.toInt( &ok );
+    allOk &= ok;
+
+    int d  = day.toInt( &ok );
+    allOk &= ok;
+
+    int h  = hour.toInt( &ok );
+    allOk &= ok;
+
+    int mi = minute.toInt( &ok );
+    allOk &= ok;
+
+    int s  = seconds.toInt( &ok );
+    allOk &= ok;
+
+    if ( allOk ) {
+        dt.setDate( QDate( y, mo, d ) );
+        dt.setTime( QTime( h, mi, s ) );
+    }
+
+    return dt;
+}
+
+#include "kfile_jpeg.moc"