fileprops.cpp Source File (kio Library)

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# fileprops.cpp

    00001 /* This file is part of the KDE libraries
    00002    Copyright (C) 2002 Carsten Pfeiffer <pfeiffer@kde.org>
    00003
    00004    library is free software; you can redistribute it and/or
    00005    modify it under the terms of the GNU Library General Public
    00006    License as published by the Free Software Foundation, version 2.
    00007
    00008    This library is distributed in the hope that it will be useful,
    00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00011    Library General Public License for more details.
    00012
    00013    You should have received a copy of the GNU Library General Public License
    00014    along with this library; see the file COPYING.LIB.  If not, write to
    00015    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00016    Boston, MA 02111-1307, USA.
    00017 */
    00018
    00019 #include <iostream>
    00020
    00021 #include <qptrlist.h>
    00022
    00023 #include <kaboutdata.h>
    00024 #include <kapplication.h>
    00025 #include <kcmdlineargs.h>
    00026 #include <kfilemetainfo.h>
    00027 #include <klocale.h>
    00028 #include <kpropertiesdialog.h>
    00029
    00030 #include "fileprops.h"
    00031
    00032 #define KFILEVERSION "0.1"
    00033 #define INDENT "\t"
    00034
    00035 using namespace std;
    00036
    00037 FileProps::FileProps( const char *argument, const QString& path )
    00038     : m_argument( argument ),
    00039       m_dirty( false )
    00040 {
    00041     m_info = new KFileMetaInfo( path );
    00042 }
    00043
    00044 FileProps::~FileProps()
    00045 {
    00046     sync();
    00047     delete m_info;
    00048 }
    00049
    00050 bool FileProps::sync()
    00051 {
    00052     if ( !m_dirty )
    00053         return true;
    00054
    00055     return m_info->applyChanges();
    00056 }
    00057
    00058 bool FileProps::isValid() const
    00059 {
    00060     return m_info->isValid();
    00061 }
    00062
    00063 QStringList FileProps::supportedGroups() const
    00064 {
    00065     return m_info->supportedGroups();
    00066 }
    00067
    00068 QStringList FileProps::availableGroups() const
    00069 {
    00070     return m_info->groups();
    00071 }
    00072
    00073 QStringList FileProps::supportedKeys( const QString& group ) const
    00074 {
    00075     KFileMetaInfoGroup g = m_info->group( group );
    00076     return g.supportedKeys();
    00077 }
    00078
    00079 QStringList FileProps::availableKeys( const QString& group ) const
    00080 {
    00081     KFileMetaInfoGroup g = m_info->group( group );
    00082     return g.keys();
    00083 }
    00084
    00085 QStringList FileProps::preferredKeys( const QString& group ) const
    00086 {
    00087     KFileMetaInfoGroup g = m_info->group( group );
    00088     return g.preferredKeys();
    00089 }
    00090
    00091 QString FileProps::getValue( const QString& group,
    00092                              const QString& key ) const
    00093 {
    00094     KFileMetaInfoGroup g = m_info->group( group );
    00095     return g[key].string();
    00096 }
    00097
    00098 bool FileProps::setValue( const QString& group,
    00099                           const QString& key, const QString &value )
    00100 {
    00101     KFileMetaInfoGroup g = m_info->group( group );
    00102     bool ok = g[key].setValue( value );
    00103     m_dirty |= ok;
    00104     return ok;
    00105 }
    00106
    00107 QStringList FileProps::allValues( const QString& group ) const
    00108 {
    00109     KFileMetaInfoGroup g = m_info->group( group );
    00110     return createKeyValueList( g, g.keys() );
    00111 }
    00112
    00113 QStringList FileProps::preferredValues( const QString& group ) const
    00114 {
    00115     KFileMetaInfoGroup g = m_info->group( group );
    00116     return createKeyValueList( g, g.preferredKeys() );
    00117 }
    00118
    00119
    00120 // helper
    00121 QStringList FileProps::createKeyValueList( const KFileMetaInfoGroup& g,
    00122                                             const QStringList& keys )
    00123 {
    00124     QStringList result;
    00125     QStringList::ConstIterator it = keys.begin();
    00126
    00127     for ( ; it != keys.end(); ++it ) {
    00128         KFileMetaInfoItem item = g.item( *it );
    00129         QString tmp = item.translatedKey() + ":\t\t" + item.string();
    00130         result.append( tmp );
    00131     }
    00132
    00133     return result;
    00134 }
    00135
    00138
    00139
    00140
    00141 // kfile --mimetype --listsupported --listavailable --listpreferred --listwritable --getValue "key" --setValue "key=value" --allValues --preferredValues --dialog --quiet file [file...]
    00142 // "key" may be a list of keys, separated by commas
    00143 static KCmdLineOptions options[] =
    00144 {
    00145     { "m", 0, 0 }, // short option for --mimetype
    00146     { "nomimetype", I18N_NOOP("Print the mimetype of the given file(s)"), 0 },
    00147
    00148     { "ls", 0, 0 }, // short option for --listsupported
    00149     { "listsupported <mimetype>",
    00150       I18N_NOOP("List all supported metadata keys of the given file(s). "
    00151                 "If mimetype is not specified, the mimetype of the given "
    00152                 "files is used." ), "file" },
    00153
    00154     { "lp", 0, 0 }, // short option for --listpreferred
    00155     { "listpreferred <mimetype>",
    00156       I18N_NOOP("List all preferred metadata keys of the given file(s). "
    00157                 "If mimetype is not specified, the mimetype of the given "
    00158                 "files is used." ), "file" },
    00159
    00160     { "la", 0, 0 }, // short option for --listavailable
    00161     { "listavailable",
    00162       I18N_NOOP("List all metadata keys which have a value in the given "
    00163                 "file(s)."), 0 },
    00164
    00165     { "sm", 0, 0 }, // short option for --supportedMimetypes
    00166     { "supportedMimetypes",
    00167       I18N_NOOP("Prints all mimetypes for which metadata support is "
    00168                 "available."), 0 },
    00169
    00170     { "q", 0, 0 }, // short option for --quiet
    00171     { "quiet",
    00172       I18N_NOOP("Don't print a warning when more than one file was given "
    00173                 "and they don't have all the same mimetype."), 0 },
    00174
    00175     { "av", 0, 0 }, // short option for --allValues
    00176     { "allValues",
    00177       I18N_NOOP("Prints all metadata values, available in the given "
    00178                 "file(s)."), 0 },
    00179
    00180     { "pv", 0, 0 }, // short option for --preferredValues
    00181     { "preferredValues",
    00182       I18N_NOOP("Prints the preferred metadata values, available in the "
    00183                 "given file(s)."), 0 },
    00184
    00185     { "dialog",
    00186       I18N_NOOP("Opens a KDE properties dialog to allow viewing and "
    00187                 "modifying of metadata of the given file(s)"), 0 },
    00188
    00189     { "getValue <key>",
    00190       I18N_NOOP("Prints the value for 'key' of the given file(s). 'key' "
    00191                 "may also be a comma-separated list of keys"), 0 },
    00192
    00193     { "setValue <key=value>",
    00194       I18N_NOOP("Attempts to set the value 'value' for the metadata key "
    00195                 "'key' for the given file(s)"), 0 },
    00196
    00197     { "+[files]",
    00198       I18N_NOOP("The file (or a number of files) to operate on."), 0 },
    00199     { 0, 0, 0 }
    00200 };
    00201
    00202
    00203 //
    00204 // helper functions
    00205 //
    00206
    00207 static void printSupportedMimeTypes()
    00208 {
    00209     QStringList allMimeTypes = KFileMetaInfoProvider::self()->supportedMimeTypes();
    00210     if ( allMimeTypes.isEmpty() )
    00211     {
    00212         cout <<
    00213             i18n("No support for metadata extraction found.").local8Bit()
    00214              << endl;
    00215         return;
    00216     }
    00217
    00218     cout << i18n("Supported MimeTypes:").local8Bit() << endl;
    00219
    00220     QStringList::ConstIterator it = allMimeTypes.begin();
    00221     for ( ; it != allMimeTypes.end(); it++ )
    00222         cout << (*it).local8Bit() << endl;
    00223 }
    00224
    00225 // caller needs to delete the returned list!
    00226 static KFileItemList * fileItemList( const KCmdLineArgs *args )
    00227 {
    00228     KFileItemList * items = new KFileItemList();
    00229     items->setAutoDelete( true );
    00230     for ( int i = 0; i < args->count(); i++ )
    00231         items->append( new KFileItem( KFileItem::Unknown,
    00232                                      KFileItem::Unknown,
    00233                                      args->url( i ) ));
    00234     return items;
    00235 }
    00236
    00237 static void showPropertiesDialog( const KCmdLineArgs *args )
    00238 {
    00239     KFileItemList *items = fileItemList( args );
    00240     new KPropertiesDialog( *items, 0L, "props dialog", true );
    00241     delete items;
    00242 }
    00243
    00244 static void printMimeTypes( const KCmdLineArgs *args )
    00245 {
    00246     for ( int i = 0; i < args->count(); i++ )
    00247     {
    00248         KURL url = args->url( i );
    00249         KMimeType::Ptr mt = KMimeType::findByURL( url );
    00250         cout << args->arg(i) << ": " << mt->comment().local8Bit() << " ("
    00251              << mt->name().local8Bit() << ")" << endl;
    00252     }
    00253 }
    00254
    00255 static void printList( const QStringList& list )
    00256 {
    00257     QStringList::ConstIterator it = list.begin();
    00258     for ( ; it != list.end(); ++it )
    00259         cout << INDENT << (*it).local8Bit() << endl;
    00260     cout << endl;
    00261 }
    00262
    00263 static void processMetaDataOptions( const QPtrList<FileProps> propList,
    00264                                     KCmdLineArgs *args )
    00265 {
    00266 // kfile --mimetype --supportedMimetypes --listsupported --listavailable --listpreferred --listwritable --getValue "key" --setValue "key=value" --allValues --preferredValues --dialog --quiet file [file...]
    00267 // "key" may be a list of keys, separated by commas
    00268
    00269     FileProps *props;
    00270     QPtrListIterator<FileProps> it( propList );
    00271     for ( ; (props = it.current()); ++it )
    00272     {
    00273         cout << props->argument() << ":" << endl;
    00274
    00275         if ( args->isSet( "listsupported" ) )
    00276         {
    00277             cout << i18n("Supported Keys").local8Bit() << endl;
    00278             printList( props->supportedKeys() );
    00279         }
    00280         if ( args->isSet( "listpreferred" ) )
    00281         {
    00282             cout << i18n("Preferred Keys").local8Bit() << endl;
    00283             printList( props->preferredKeys() );
    00284         }
    00285         if ( args->isSet( "listavailable" ) )
    00286         {
    00287             cout << "TODO :)" << endl;
    00288         }
    00289 //         if ( args->isSet( "listwritable" ) )
    00290 //         {
    00291 //             cout << "TODO :)" << endl;
    00292 //         }
    00293         if ( args->isSet( "getValue" ) )
    00294         {
    00295             //         QCString key = args->option("getValue");
    00296         }
    00297         if ( args->isSet( "allValues" ) )
    00298         {
    00299             QStringList groups = props->availableGroups();
    00300             QStringList::ConstIterator group = groups.begin();
    00301             for ( ; group != groups.end(); ++group )
    00302             {
    00303                 cout << (*group).local8Bit() << endl;
    00304                 printList( props->allValues( *group ) );
    00305             }
    00306         }
    00307         if ( args->isSet( "preferredValues" ) && !args->isSet("allValues") )
    00308         {
    00309             QStringList groups = props->availableGroups();
    00310             QStringList::ConstIterator group = groups.begin();
    00311             for ( ; group != groups.end(); ++group )
    00312             {
    00313                 cout << (*group).local8Bit() << endl;
    00314                 printList( props->preferredValues( *group ) );
    00315             }
    00316
    00317         }
    00318     }
    00319
    00320
    00321 }
    00322
    00323 int main( int argc, char **argv )
    00324 {
    00325     KAboutData about(
    00326           "kfile", I18N_NOOP( "kfile" ), KFILEVERSION,
    00327           I18N_NOOP("A commandline tool to read and modify metadata of files." ),
    00328           KAboutData::License_LGPL, "(c) 2002, Carsten Pfeiffer",
    00329           0 /*text*/, "http://devel-home.kde.org/~pfeiffer/",
    00330           "pfeiffer@kde.org" );
    00331
    00332     about.addAuthor( "Carsten Pfeiffer", 0, "pfeiffer@kde.org",
    00333                      "http://devel-home.kde.org/~pfeiffer/" );
    00334
    00335     KGlobal::locale()->setMainCatalogue("kdelibs");
    00336
    00337     KCmdLineArgs::init( argc, argv, &about );
    00338
    00339     KCmdLineArgs::addCmdLineOptions( options );
    00340
    00341     KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
    00342     bool useGUI = args->isSet( "dialog" );
    00343
    00344     KApplication app( useGUI, useGUI );
    00345
    00346     QPtrList<FileProps> m_props;
    00347     m_props.setAutoDelete( true );
    00348
    00349     bool quiet = args->isSet( "quiet" );
    00350
    00351     if ( args->isSet( "supportedMimetypes" ) )
    00352         printSupportedMimeTypes();
    00353
    00354     int files = args->count();
    00355     if ( files == 0 )
    00356         KCmdLineArgs::usage( i18n("No files specified") ); // exit()s
    00357
    00358     QString mimeType;
    00359
    00360     for ( int i = 0; i < files; i++ )
    00361     {
    00362         if ( args->isSet( "dialog" ) )
    00363         {
    00364             showPropertiesDialog( args );
    00365             return true;
    00366         }
    00367
    00368         if ( args->isSet( "mimetype" ) )
    00369             printMimeTypes( args );
    00370
    00371         FileProps *props = new FileProps( args->arg(i),
    00372                                           args->url(i).path() );
    00373         if ( props->isValid() )
    00374             m_props.append( props );
    00375         else if ( !quiet )
    00376             cerr << args->arg(i) << ": " <<
    00377                 i18n("Cannot determine metadata").local8Bit() << endl;
    00378     }
    00379
    00380
    00381     processMetaDataOptions( m_props, args );
    00382
    00383     return 0;
    00384 }

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
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