summaryrefslogtreecommitdiffstats
path: root/kfile-plugins/raw/kcamerarawplugin.cpp
blob: 525e53ae9e6d5fc746f9acbfe9a0531e178f15a3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/* This file is part of the KDE project
 * Copyright (C) Steffen Hansen <hansen@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 "kcamerarawplugin.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <klocale.h>
#include <kgenericfactory.h>
#include <kdebug.h>
#include <ktempfile.h>
#include <kimageio.h>
#include <qfile.h>
#include <qimage.h>
#include <qwmatrix.h>
#include <cstdio>


typedef KGenericFactory<KCameraRawPlugin> RawFactory;

K_EXPORT_COMPONENT_FACTORY(kfile_raw, RawFactory("kfile_raw"))

#ifndef KDE_EXPORT
# define KDE_EXPORT
#endif

/* Main entry point into raw parser */
extern "C" {
  int extract_thumbnail( FILE*, FILE*, int* );
  extern char make[];
  extern char model[];
}

bool KCameraRawPlugin::createPreview(const QString &path, QImage &img)
{
  /* Open file and extract thumbnail */
  FILE* input = fopen( QFile::encodeName(path), "rb" );
  if( !input ) return false;
  KTempFile output;
  output.setAutoDelete(true);
  int orientation = 0;
  if( extract_thumbnail( input, output.fstream(), &orientation ) ) {
    fclose(input);
    return false;
  }
  fclose(input);
  output.close();
  if( !img.load( output.name() ) ) return false;
  
  if(orientation) {
    QWMatrix M;
    QWMatrix flip= QWMatrix(-1,0,0,1,0,0);
    switch(orientation+1) {  // notice intentional fallthroughs
    case 2: M = flip; break;
    case 4: M = flip;
    case 3: M.rotate(180); break;
    case 5: M = flip;
    case 6: M.rotate(90); break;
    case 7: M = flip;
    case 8: M.rotate(270); break;
    default: break; // should never happen
    }
    img = img.xForm(M);
  }
  return true;	
}

KCameraRawPlugin::KCameraRawPlugin(QObject *parent, const char *name,
				   const QStringList &args )
    : KFilePlugin(parent, name, args)
{
  kdDebug(7034) << "KCameraRawPlugin c'tor" << endl;

  //
  // define all possible meta info items
  //
  KFileMimeTypeInfo *info = addMimeTypeInfo("image/x-raw");
  KFileMimeTypeInfo::GroupInfo *group = addGroupInfo( info, "Info",
						      i18n("Image Info") );
  KFileMimeTypeInfo::ItemInfo* item;
  
  item = addItemInfo( group, "Manufacturer", i18n("Camera Manufacturer"),
		      QVariant::String );
  item = addItemInfo( group, "Model", i18n("Camera Model"),
		      QVariant::String );
  item = addItemInfo( group, "Thumbnail", i18n("Thumbnail"),
                      QVariant::Image );
  setHint( item, KFileMimeTypeInfo::Thumbnail );
}

bool KCameraRawPlugin::readInfo( KFileMetaInfo& info, uint what )
{
    kdDebug(7034) << "KCameraRawPlugin::readInfo()" << endl;
    
    const QString path( info.path() );
    if ( path.isEmpty() ) // remote file
        return false;
    
    KFileMetaInfoGroup group = appendGroup( info, "Info" );
    if ( what & KFileMetaInfo::Thumbnail ){
      QImage img;
      if( createPreview( path,img ) ) {
	appendItem( group, "Thumbnail", img );
	kdDebug(7034) << "thumbnail " << path << " created" << endl;
      }
    } else {
      // HACK: We have to extract thumbnail to get any info...
      QImage img;
      createPreview( path,img );      
    }
    kdDebug(7034) << "make=" << make << endl;
    kdDebug(7034) << "model=" << model << endl;
    if( make[0] ) {
      appendItem( group, "Manufacturer", &make[0] );
    }
    if( model[0] ) {
      appendItem( group, "Model", &model[0] );
    }

    return true;
}

#include "kcamerarawplugin.moc"