TQt4 port k3b

This enables compilation under both Qt3 and Qt4


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1233803 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

17 files changed, 219 insertions, 210 deletions

diff --git a/libk3b/plugin/k3baudiodecoder.cpp b/libk3b/plugin/k3baudiodecoder.cpp
index 82f4adb..54fe8ad 100644
--- a/libk3b/plugin/k3baudiodecoder.cpp
+++ b/libk3b/plugin/k3baudiodecoder.cpp
@@ -23,7 +23,7 @@
 #include <kdebug.h>
 #include <kfilemetainfo.h>
 
-#include <qmap.h>
+#include <tqmap.h>
 
 #include <math.h>
 
@@ -98,16 +98,16 @@ public:
   char* decodingBufferPos;
   int decodingBufferFill;
 
-  QMap<QString, QString> technicalInfoMap;
-  QMap<MetaDataField, QString> metaInfoMap;
+  TQMap<TQString, TQString> technicalInfoMap;
+  TQMap<MetaDataField, TQString> metaInfoMap;
 
   bool valid;
 };
 
 
 
-K3bAudioDecoder::K3bAudioDecoder( QObject* parent, const char* name )
-  : QObject( parent, name )
+K3bAudioDecoder::K3bAudioDecoder( TQObject* tqparent, const char* name )
+  : TQObject( tqparent, name )
 {
   d = new Private();
 }
@@ -129,7 +129,7 @@ K3bAudioDecoder::~K3bAudioDecoder()
 }
 
 
-void K3bAudioDecoder::setFilename( const QString& filename )
+void K3bAudioDecoder::setFilename( const TQString& filename )
 {
   m_fileName = filename;
   delete d->metaInfo;
@@ -302,7 +302,7 @@ int K3bAudioDecoder::decode( char* _data, int maxLen )
 
 
   // clear out the decoding buffer
-  read = QMIN( maxLen, d->decodingBufferFill );
+  read = TQMIN( maxLen, d->decodingBufferFill );
   ::memcpy( _data, d->decodingBufferPos, read );
   d->decodingBufferPos += read;
   d->decodingBufferFill -= read;
@@ -321,7 +321,7 @@ int K3bAudioDecoder::decode( char* _data, int maxLen )
 int K3bAudioDecoder::resample( char* data, int maxLen )
 {
   if( !d->resampleState ) {
-    d->resampleState = src_new( SRC_SINC_MEDIUM_QUALITY, d->channels, 0 );
+    d->resampleState = src_new( SRC_SINC_MEDIUM_TQUALITY, d->channels, 0 );
     if( !d->resampleState ) {
       kdDebug() << "(K3bAudioDecoder) unable to initialize resampler." << endl;
       return -1;
@@ -375,7 +375,7 @@ void K3bAudioDecoder::from16bitBeSignedToFloat( char* src, float* dest, int samp
 {
   while( samples ) {
     samples--;
-    dest[samples] = static_cast<float>( Q_INT16(((src[2*samples]<<8)&0xff00)|(src[2*samples+1]&0x00ff)) / 32768.0 );
+    dest[samples] = static_cast<float>( TQ_INT16(((src[2*samples]<<8)&0xff00)|(src[2*samples+1]&0x00ff)) / 32768.0 );
   }
 }
 
@@ -386,7 +386,7 @@ void K3bAudioDecoder::fromFloatTo16BitBeSigned( float* src, char* dest, int samp
     samples--;
 
     float scaled = src[samples] * 32768.0;
-    Q_INT16 val = 0;
+    TQ_INT16 val = 0;
 
     // clipping
     if( scaled >= ( 1.0 * 0x7FFF ) )
@@ -407,8 +407,8 @@ void K3bAudioDecoder::from8BitTo16BitBeSigned( char* src, char* dest, int sample
   while( samples ) {
     samples--;
 
-    float scaled = static_cast<float>(Q_UINT8(src[samples])-128) / 128.0 * 32768.0;
-    Q_INT16 val = 0;
+    float scaled = static_cast<float>(TQ_UINT8(src[samples])-128) / 128.0 * 32768.0;
+    TQ_INT16 val = 0;
       
     // clipping
     if( scaled >= ( 1.0 * 0x7FFF ) )
@@ -462,7 +462,7 @@ bool K3bAudioDecoder::seek( const K3b::Msf& pos )
     kdDebug() << "(K3bAudioDecoder) seeking " << bytesToDecode << " bytes." << endl;
     char buffi[10*2352];
     while( bytesToDecode > 0 ) {
-      int read = decode( buffi, QMIN(10*2352, bytesToDecode) );
+      int read = decode( buffi, TQMIN(10*2352, bytesToDecode) );
       if( read <= 0 )
 	return false;
       
@@ -502,9 +502,9 @@ void K3bAudioDecoder::cleanup()
 }
 
 
-QString K3bAudioDecoder::metaInfo( MetaDataField f )
+TQString K3bAudioDecoder::metaInfo( MetaDataField f )
 {
-  if( d->metaInfoMap.contains( f ) )
+  if( d->metaInfoMap.tqcontains( f ) )
     return d->metaInfoMap[f];
 
   // fall back to KFileMetaInfo
@@ -512,7 +512,7 @@ QString K3bAudioDecoder::metaInfo( MetaDataField f )
     d->metaInfo = new KFileMetaInfo( filename() );
 
   if( d->metaInfo->isValid() ) {
-    QString tag;
+    TQString tag;
     switch( f ) {
     case META_TITLE:
       tag = "Title";
@@ -536,11 +536,11 @@ QString K3bAudioDecoder::metaInfo( MetaDataField f )
       return item.string();
   }
 
-  return QString::null;
+  return TQString();
 }
 
 
-void K3bAudioDecoder::addMetaInfo( MetaDataField f, const QString& value )
+void K3bAudioDecoder::addMetaInfo( MetaDataField f, const TQString& value )
 {
   if( !value.isEmpty() )
     d->metaInfoMap[f] = value;
@@ -549,23 +549,23 @@ void K3bAudioDecoder::addMetaInfo( MetaDataField f, const QString& value )
 }
 
 
-QStringList K3bAudioDecoder::supportedTechnicalInfos() const
+TQStringList K3bAudioDecoder::supportedTechnicalInfos() const
 {
-  QStringList l;
-  for( QMap<QString, QString>::const_iterator it = d->technicalInfoMap.begin();
+  TQStringList l;
+  for( TQMap<TQString, TQString>::const_iterator it = d->technicalInfoMap.begin();
        it != d->technicalInfoMap.end(); ++it )
     l.append( it.key() );
   return l;
 }
 
 
-QString K3bAudioDecoder::technicalInfo( const QString& key ) const
+TQString K3bAudioDecoder::technicalInfo( const TQString& key ) const
 {
   return d->technicalInfoMap[key];
 }
 
 
-void K3bAudioDecoder::addTechnicalInfo( const QString& key, const QString& value )
+void K3bAudioDecoder::addTechnicalInfo( const TQString& key, const TQString& value )
 {
   d->technicalInfoMap[key] = value;
 }
@@ -574,17 +574,17 @@ void K3bAudioDecoder::addTechnicalInfo( const QString& key, const QString& value
 K3bAudioDecoder* K3bAudioDecoderFactory::createDecoder( const KURL& url )
 {
   kdDebug() << "(K3bAudioDecoderFactory::createDecoder( " << url.path() << " )" << endl;
-  QPtrList<K3bPlugin> fl = k3bcore->pluginManager()->plugins( "AudioDecoder" );
+  TQPtrList<K3bPlugin> fl = k3bcore->pluginManager()->plugins( "AudioDecoder" );
 
   // first search for a single format decoder
-  for( QPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
+  for( TQPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
     K3bAudioDecoderFactory* f = dynamic_cast<K3bAudioDecoderFactory*>( it.current() );
     if( f && !f->multiFormatDecoder() && f->canDecode( url ) ) {
       kdDebug() << "1" << endl; return f->createDecoder();}
   }
   
   // no single format decoder. Search for a multi format decoder
-  for( QPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
+  for( TQPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
     K3bAudioDecoderFactory* f = dynamic_cast<K3bAudioDecoderFactory*>( it.current() );
     if( f && f->multiFormatDecoder() && f->canDecode( url ) ) {
       kdDebug() << "2" << endl; return f->createDecoder();}
diff --git a/libk3b/plugin/k3baudiodecoder.h b/libk3b/plugin/k3baudiodecoder.h
index 69f594c..ed13c66 100644
--- a/libk3b/plugin/k3baudiodecoder.h
+++ b/libk3b/plugin/k3baudiodecoder.h
@@ -31,12 +31,13 @@
  *
  * Instances are created by K3bAudioDecoderFactory
  **/
-class LIBK3B_EXPORT K3bAudioDecoder : public QObject
+class LIBK3B_EXPORT K3bAudioDecoder : public TQObject
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bAudioDecoder( QObject* parent = 0, const char* name = 0 );
+  K3bAudioDecoder( TQObject* tqparent = 0, const char* name = 0 );
   virtual ~K3bAudioDecoder();
 
 
@@ -44,7 +45,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    * Set the file to decode. Be aware that one cannot rely 
    * on the file length until analyseFile() has been called.
    */
-  void setFilename( const QString& );
+  void setFilename( const TQString& );
 
   /**
    * Since this may take a while depending on the filetype it is best
@@ -87,7 +88,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    * the default implementation returns the infos set via @p addMetaInfo
    * and uses KFileMetaInfo if none was set
    */ 
-  virtual QString metaInfo( MetaDataField );
+  virtual TQString metaInfo( MetaDataField );
 
   /**
    * The filetype is only used for informational purposes.
@@ -95,7 +96,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    * as it enhances usability.
    * @returne The filetype of the decoded file.
    */
-  virtual QString fileType() const { return QString::null; }
+  virtual TQString fileType() const { return TQString(); }
 
   /**
    * This method may be reimplemented to provide technical information about
@@ -103,7 +104,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    *
    * the default implementation returns the infos set via @p addTechnicalInfo
    */
-  virtual QStringList supportedTechnicalInfos() const;
+  virtual TQStringList supportedTechnicalInfos() const;
 
   /**
    * The framework will call this method with all strings returned by the
@@ -111,7 +112,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    *
    * the default implementation returns the infos set via @p addTechnicalInfo
    */
-  virtual QString technicalInfo( const QString& ) const;
+  virtual TQString technicalInfo( const TQString& ) const;
 
   /**
    * returnes -1 on error, 0 when finished, length of data otherwise
@@ -144,7 +145,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
    */
   virtual K3b::Msf length() const { return m_length; }
 
-  const QString& filename() const { return m_fileName; }
+  const TQString& filename() const { return m_fileName; }
 
   // some helper methods
   static void fromFloatTo16BitBeSigned( float* src, char* dest, int samples );
@@ -155,13 +156,13 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
   /**
    * Use this method if using the default implementation of @p metaInfo
    */
-  void addMetaInfo( MetaDataField, const QString& );
+  void addMetaInfo( MetaDataField, const TQString& );
 
   /**
    * Use this method if using the default implementation of @p technicalInfo
    * and @p supportedTechnicalInfos.
    */
-  void addTechnicalInfo( const QString&, const QString& );
+  void addTechnicalInfo( const TQString&, const TQString& );
 
   /**
    * This will be called once before the first call to decodeInternal.
@@ -191,7 +192,7 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
  private:
   int resample( char* data, int maxLen );
 
-  QString m_fileName;
+  TQString m_fileName;
   K3b::Msf m_length;
 
   class Private;
@@ -209,16 +210,17 @@ class LIBK3B_EXPORT K3bAudioDecoder : public QObject
 class LIBK3B_EXPORT K3bAudioDecoderFactory : public K3bPlugin
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bAudioDecoderFactory( QObject* parent = 0, const char* name = 0 )
-    : K3bPlugin( parent, name ) {
+  K3bAudioDecoderFactory( TQObject* tqparent = 0, const char* name = 0 )
+    : K3bPlugin( tqparent, name ) {
   }
 
   virtual ~K3bAudioDecoderFactory() {
   }
 
-  QString group() const { return "AudioDecoder"; }
+  TQString group() const { return "AudioDecoder"; }
 
   /**
    * K3b uses this flag to decide which plugins to test first
@@ -239,7 +241,7 @@ class LIBK3B_EXPORT K3bAudioDecoderFactory : public K3bPlugin
    */
   virtual bool canDecode( const KURL& filename ) = 0;
 
-  virtual K3bAudioDecoder* createDecoder( QObject* parent = 0, const char* name = 0 ) const = 0;
+  virtual K3bAudioDecoder* createDecoder( TQObject* tqparent = 0, const char* name = 0 ) const = 0;
 
   /**
    * Searching for an audiodecoder for @p filename.
diff --git a/libk3b/plugin/k3baudioencoder.cpp b/libk3b/plugin/k3baudioencoder.cpp
index 3b1309a..d7f72d1 100644
--- a/libk3b/plugin/k3baudioencoder.cpp
+++ b/libk3b/plugin/k3baudioencoder.cpp
@@ -15,7 +15,7 @@
 
 #include "k3baudioencoder.h"
 
-#include <qfile.h>
+#include <tqfile.h>
 
 #include <kdebug.h>
 
@@ -27,15 +27,15 @@ public:
     : outputFile(0) {
   }
 
-  QFile* outputFile;
-  QString outputFilename;
+  TQFile* outputFile;
+  TQString outputFilename;
 
-  QString lastErrorString;
+  TQString lastErrorString;
 };
 
 
-K3bAudioEncoder::K3bAudioEncoder( QObject* parent, const char* name )
-  : K3bPlugin( parent, name )
+K3bAudioEncoder::K3bAudioEncoder( TQObject* tqparent, const char* name )
+  : K3bPlugin( tqparent, name )
 {
   d = new Private();
 }
@@ -48,11 +48,11 @@ K3bAudioEncoder::~K3bAudioEncoder()
 }
 
 
-bool K3bAudioEncoder::openFile( const QString& ext, const QString& filename, const K3b::Msf& length )
+bool K3bAudioEncoder::openFile( const TQString& ext, const TQString& filename, const K3b::Msf& length )
 {
   closeFile();
 
-  d->outputFile = new QFile( filename );
+  d->outputFile = new TQFile( filename );
   if( d->outputFile->open( IO_WriteOnly ) ) {
     return initEncoder( ext, length );
   }
@@ -81,35 +81,35 @@ void K3bAudioEncoder::closeFile()
       d->outputFile->close();
     delete d->outputFile;
     d->outputFile = 0;
-    d->outputFilename = QString::null;
+    d->outputFilename = TQString();
   }
 }
 
 
-const QString& K3bAudioEncoder::filename() const
+const TQString& K3bAudioEncoder::filename() const
 {
   if( d->outputFile )
     return d->outputFilename;
   else
-    return QString::null;
+    return TQString();
 }
 
 
 
-void K3bAudioEncoder::setMetaData( K3bAudioEncoder::MetaDataField f, const QString& data )
+void K3bAudioEncoder::setMetaData( K3bAudioEncoder::MetaDataField f, const TQString& data )
 {
   if( !data.isEmpty() )
     return setMetaDataInternal( f, data );
 }
 
 
-long K3bAudioEncoder::encode( const char* data, Q_ULONG len )
+long K3bAudioEncoder::encode( const char* data, TQ_ULONG len )
 {
   return encodeInternal( data, len );
 }
 
 
-bool K3bAudioEncoder::initEncoder( const QString& ext, const K3b::Msf& length )
+bool K3bAudioEncoder::initEncoder( const TQString& ext, const K3b::Msf& length )
 {
   if( !isOpen() ) {
     kdDebug() << "(K3bAudioEncoder) call to initEncoder without openFile!" << endl;
@@ -120,7 +120,7 @@ bool K3bAudioEncoder::initEncoder( const QString& ext, const K3b::Msf& length )
 }
 
 
-Q_LONG K3bAudioEncoder::writeData( const char* data, Q_ULONG len )
+TQ_LONG K3bAudioEncoder::writeData( const char* data, TQ_ULONG len )
 {
   if( d->outputFile ) {
     return d->outputFile->writeBlock( data, len );
@@ -132,14 +132,14 @@ Q_LONG K3bAudioEncoder::writeData( const char* data, Q_ULONG len )
 }
 
 
-bool K3bAudioEncoder::initEncoderInternal( const QString&, const K3b::Msf& )
+bool K3bAudioEncoder::initEncoderInternal( const TQString&, const K3b::Msf& )
 {
   // do nothing
   return true;
 }
 
 
-void K3bAudioEncoder::setMetaDataInternal( K3bAudioEncoder::MetaDataField, const QString& )
+void K3bAudioEncoder::setMetaDataInternal( K3bAudioEncoder::MetaDataField, const TQString& )
 {
   // do nothing
 }
@@ -158,13 +158,13 @@ void K3bAudioEncoder::finishEncoderInternal()
 }
 
 
-void K3bAudioEncoder::setLastError( const QString& e )
+void K3bAudioEncoder::setLastError( const TQString& e )
 {
   d->lastErrorString = e;
 }
 
 
-QString K3bAudioEncoder::lastErrorString() const
+TQString K3bAudioEncoder::lastErrorString() const
 {
   if( d->lastErrorString.isEmpty() )
     return i18n("An unknown error occurred.");
diff --git a/libk3b/plugin/k3baudioencoder.h b/libk3b/plugin/k3baudioencoder.h
index 137b49d..b3fc01b 100644
--- a/libk3b/plugin/k3baudioencoder.h
+++ b/libk3b/plugin/k3baudioencoder.h
@@ -33,9 +33,10 @@
 class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bAudioEncoder( QObject* parent = 0, const char* name = 0 );
+  K3bAudioEncoder( TQObject* tqparent = 0, const char* name = 0 );
   virtual ~K3bAudioEncoder();
 
   // TODO: if the following methods are to be activated the config methods in
@@ -52,7 +53,7 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    */
   // virtual void readConfig( KConfig* );
 
-  QString group() const { return "AudioEncoder"; }
+  TQString group() const { return "AudioEncoder"; }
 
   /**
    * This should return the fileextensions supported by the filetype written in the
@@ -61,19 +62,19 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * in handy if the encoder is based on some external program or lib which is not 
    * available on runtime.)
    */
-  virtual QStringList extensions() const = 0;
+  virtual TQStringList extensions() const = 0;
 
   /**
    * The filetype as presented to the user.
    */
-  virtual QString fileTypeComment( const QString& extension ) const = 0;
+  virtual TQString fileTypeComment( const TQString& extension ) const = 0;
 
   /**
    * Determine the filesize of the encoded file (~)
    * default implementation returnes -1 (unknown)
    * First parameter is the extension to be used
    */
-  virtual long long fileSize( const QString&, const K3b::Msf& ) const { return -1; }
+  virtual long long fileSize( const TQString&, const K3b::Msf& ) const { return -1; }
 
   /**
    * The default implementation openes the file for writing with 
@@ -81,7 +82,7 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * @param extension the filetype to be used.
    *
    */
-  virtual bool openFile( const QString& extension, const QString& filename, const K3b::Msf& length );
+  virtual bool openFile( const TQString& extension, const TQString& filename, const K3b::Msf& length );
 
 
   /**
@@ -101,11 +102,11 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
 
   /**
    * The default implementation returnes the filename set in openFile
-   * or QString::null if no file has been opened.
+   * or TQString() if no file has been opened.
    * Normally this does not need to be reimplemented but it has to be 
    * if openFile is reimplemented.
    */
-  virtual const QString& filename() const;
+  virtual const TQString& filename() const;
 
   enum MetaDataField {
     META_TRACK_TITLE,
@@ -123,7 +124,7 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * calling openFile and before calling encode.
    * This calls setMetaDataInternal.
    */
-  void setMetaData( MetaDataField, const QString& );
+  void setMetaData( MetaDataField, const TQString& );
 
   /**
    * Returnes the amount of actually written bytes or -1 if an error
@@ -132,20 +133,20 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * Be aware that the returned amount of written data may very well differ
    * from len since the data is encoded.
    */
-  long encode( const char*, Q_ULONG len );
+  long encode( const char*, TQ_ULONG len );
 
   /**
    * Use this signal in case of an error to provide the user with information
    * about the problem.
    */
-  virtual QString lastErrorString() const;
+  virtual TQString lastErrorString() const;
 
  protected:
   /**
    * Called by the default implementation of openFile
    * This calls initEncoderInternal.
    */
-  bool initEncoder( const QString& extension, const K3b::Msf& length );
+  bool initEncoder( const TQString& extension, const K3b::Msf& length );
 
   /**
    * Called by the deafult implementation of openFile
@@ -158,14 +159,14 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * using the default implementation of openFile
    * Returnes the number of bytes actually written.
    */
-  Q_LONG writeData( const char*, Q_ULONG len );
+  TQ_LONG writeData( const char*, TQ_ULONG len );
 
   /**
    * initzialize the decoder structures.
    * default implementation does nothing
    * this may already write data.
    */
-  virtual bool initEncoderInternal( const QString& extension, const K3b::Msf& length );
+  virtual bool initEncoderInternal( const TQString& extension, const K3b::Msf& length );
 
   /**
    * reimplement this if the encoder needs to do some
@@ -180,20 +181,20 @@ class LIBK3B_EXPORT K3bAudioEncoder : public K3bPlugin
    * Should return the amount of actually written bytes (may be 0) and -1
    * on error.
    */
-  // TODO: use Q_INT16* instead of char*
+  // TODO: use TQ_INT16* instead of char*
   // FIXME: why little endian while CDs use big endian???
-  virtual long encodeInternal( const char*, Q_ULONG len ) = 0;
+  virtual long encodeInternal( const char*, TQ_ULONG len ) = 0;
 
   /**
    * default implementation does nothing
    * this may already write data.
    */
-  virtual void setMetaDataInternal( MetaDataField, const QString& );
+  virtual void setMetaDataInternal( MetaDataField, const TQString& );
 
   /**
    * Use this in combination with the default implementation of lastError()
    */
-  void setLastError( const QString& );
+  void setLastError( const TQString& );
 
  private:
   class Private;
diff --git a/libk3b/plugin/k3baudiooutputplugin.h b/libk3b/plugin/k3baudiooutputplugin.h
index 97e897a..fdd57a5 100644
--- a/libk3b/plugin/k3baudiooutputplugin.h
+++ b/libk3b/plugin/k3baudiooutputplugin.h
@@ -25,18 +25,19 @@
 class LIBK3B_EXPORT K3bAudioOutputPlugin : public K3bPlugin
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
   virtual ~K3bAudioOutputPlugin() {
   }
 
-  QString group() const { return "AudioOutput"; }
+  TQString group() const { return "AudioOutput"; }
 
   /**
    * This is the short name of the sound system which can be used
    * to specify the sound system on the command line (like "arts", "alsa", or "oss")
    */
-  virtual QCString soundSystem() const = 0;
+  virtual TQCString soundSystem() const = 0;
 
   /**
    * Initialize the plugin.
@@ -51,7 +52,7 @@ class LIBK3B_EXPORT K3bAudioOutputPlugin : public K3bPlugin
    */
   virtual void cleanup() {}
 
-  virtual QString lastErrorMessage() const { return QString::null; }
+  virtual TQString lastErrorMessage() const { return TQString(); }
 
   /**
    * Let there be sound...
@@ -61,8 +62,8 @@ class LIBK3B_EXPORT K3bAudioOutputPlugin : public K3bPlugin
   virtual int write( char* data, int len ) = 0;
 
  protected:
-  K3bAudioOutputPlugin( QObject* parent = 0, const char* name = 0 )
-    : K3bPlugin( parent, name ) {
+  K3bAudioOutputPlugin( TQObject* tqparent = 0, const char* name = 0 )
+    : K3bPlugin( tqparent, name ) {
   }
 };
 
diff --git a/libk3b/plugin/k3baudioserver.cpp b/libk3b/plugin/k3baudioserver.cpp
index ecfb25f..3251ed5 100644
--- a/libk3b/plugin/k3baudioserver.cpp
+++ b/libk3b/plugin/k3baudioserver.cpp
@@ -89,8 +89,8 @@ private:
 };
 
 
-K3bAudioServer::K3bAudioServer( QObject* parent, const char* name )
-  : QObject( parent, name ),
+K3bAudioServer::K3bAudioServer( TQObject* tqparent, const char* name )
+  : TQObject( tqparent, name ),
     m_usedOutputPlugin(0),
     m_pluginInitialized(false),
     m_client(0)
@@ -107,7 +107,7 @@ K3bAudioServer::~K3bAudioServer()
 }
 
 
-bool K3bAudioServer::setOutputMethod( const QCString& name )
+bool K3bAudioServer::setOutputMethod( const TQCString& name )
 {
   if( K3bAudioOutputPlugin* p = findOutputPlugin( name ) ) {
     setOutputPlugin( p );
@@ -153,8 +153,8 @@ void K3bAudioServer::attachClient( K3bAudioClient* c )
   if( m_usedOutputPlugin && !m_pluginInitialized ) {
     if( !m_usedOutputPlugin->init() ) {
       emit error( i18n("Could not initialize Audio Output plugin %1 (%2)")
-		  .arg(m_usedOutputPlugin->pluginInfo().name())
-		  .arg(m_usedOutputPlugin->lastErrorMessage()) );
+		  .tqarg(m_usedOutputPlugin->pluginInfo().name())
+		  .tqarg(m_usedOutputPlugin->lastErrorMessage()) );
     }
     else
       m_pluginInitialized = true;
@@ -184,11 +184,11 @@ void K3bAudioServer::detachClient( K3bAudioClient* c )
 }
 
 
-K3bAudioOutputPlugin* K3bAudioServer::findOutputPlugin( const QCString& name )
+K3bAudioOutputPlugin* K3bAudioServer::findOutputPlugin( const TQCString& name )
 {
-  QPtrList<K3bPlugin> fl = k3bcore->pluginManager()->plugins( "AudioOutput" );
+  TQPtrList<K3bPlugin> fl = k3bcore->pluginManager()->plugins( "AudioOutput" );
   
-  for( QPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
+  for( TQPtrListIterator<K3bPlugin> it( fl ); it.current(); ++it ) {
     K3bAudioOutputPlugin* f = dynamic_cast<K3bAudioOutputPlugin*>( it.current() );
 
     if( f && f->soundSystem() == name ) {
@@ -202,7 +202,7 @@ K3bAudioOutputPlugin* K3bAudioServer::findOutputPlugin( const QCString& name )
 }
 
 
-void K3bAudioServer::customEvent( QCustomEvent* e )
+void K3bAudioServer::customEvent( TQCustomEvent* e )
 {
   if( K3bProgressInfoEvent* be = dynamic_cast<K3bProgressInfoEvent*>(e) ) {
     if( be->type() == K3bProgressInfoEvent::InfoMessage ) {
diff --git a/libk3b/plugin/k3baudioserver.h b/libk3b/plugin/k3baudioserver.h
index 1e8d4a8..b428056 100644
--- a/libk3b/plugin/k3baudioserver.h
+++ b/libk3b/plugin/k3baudioserver.h
@@ -16,7 +16,7 @@
 #ifndef _K3B_AUDIO_SERVER_H_
 #define _K3B_AUDIO_SERVER_H_
 
-#include <qobject.h>
+#include <tqobject.h>
 #include "k3b_export.h"
 class K3bAudioOutputPlugin;
 class K3bAudioClient;
@@ -26,18 +26,19 @@ class K3bAudioClient;
  * The AudioServer manages AudioClients to play audio data through
  * some output plugin.
  */
-class LIBK3B_EXPORT K3bAudioServer : public QObject
+class LIBK3B_EXPORT K3bAudioServer : public TQObject
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bAudioServer( QObject* parent = 0, const char* name = 0 );
+  K3bAudioServer( TQObject* tqparent = 0, const char* name = 0 );
   ~K3bAudioServer();
 
   /**
    * Returns false in case the named output method could not be found.
    */
-  bool setOutputMethod( const QCString& name );
+  bool setOutputMethod( const TQCString& name );
   void setOutputPlugin( K3bAudioOutputPlugin* p );
 
   /**
@@ -62,13 +63,13 @@ class LIBK3B_EXPORT K3bAudioServer : public QObject
   /**
    * Find a plugin by classname.
    */
-  static K3bAudioOutputPlugin* findOutputPlugin( const QCString& name );
+  static K3bAudioOutputPlugin* findOutputPlugin( const TQCString& name );
 
  signals:
-  void error( const QString& );
+  void error( const TQString& );
 
  private:
-  void customEvent( QCustomEvent* e );
+  void customEvent( TQCustomEvent* e );
 
   class Private;
   friend class Private;
diff --git a/libk3b/plugin/k3bplugin.cpp b/libk3b/plugin/k3bplugin.cpp
index db75bb4..6929bd0 100644
--- a/libk3b/plugin/k3bplugin.cpp
+++ b/libk3b/plugin/k3bplugin.cpp
@@ -17,8 +17,8 @@
 #include "k3bplugin.h"
 
 
-K3bPlugin::K3bPlugin( QObject* parent, const char* name )
-  : QObject( parent, name )
+K3bPlugin::K3bPlugin( TQObject* tqparent, const char* name )
+  : TQObject( tqparent, name )
 {
 }
 
@@ -28,7 +28,7 @@ K3bPlugin::~K3bPlugin()
 }
 
 
-K3bPluginConfigWidget* K3bPlugin::createConfigWidget( QWidget*, const char* ) const
+K3bPluginConfigWidget* K3bPlugin::createConfigWidget( TQWidget*, const char* ) const
 {
   return 0;
 }
diff --git a/libk3b/plugin/k3bplugin.h b/libk3b/plugin/k3bplugin.h
index f4501a7..1eeb622 100644
--- a/libk3b/plugin/k3bplugin.h
+++ b/libk3b/plugin/k3bplugin.h
@@ -17,7 +17,7 @@
 #ifndef _K3B_PLUGIN_H_
 #define _K3B_PLUGIN_H_
 
-#include <qobject.h>
+#include <tqobject.h>
 #include <kgenericfactory.h>
 #include "k3b_export.h"
 
@@ -25,7 +25,7 @@
 
 
 class K3bPluginConfigWidget;
-class QWidget;
+class TQWidget;
 
 
 
@@ -37,13 +37,13 @@ class K3bPluginInfo
   K3bPluginInfo() {
   }
 
-  K3bPluginInfo( QString libraryName,
-		 QString name,
-		 QString author,
-		 QString email,
-		 QString comment,
-		 QString version,
-		 QString licence )
+  K3bPluginInfo( TQString libraryName,
+		 TQString name,
+		 TQString author,
+		 TQString email,
+		 TQString comment,
+		 TQString version,
+		 TQString licence )
     : m_libraryName(libraryName),
     m_name(name),
     m_author(author),
@@ -53,38 +53,39 @@ class K3bPluginInfo
     m_licence(licence) {
   }
 
-  const QString& name() const { return m_name; }
-  const QString& author() const { return m_author; }
-  const QString& email() const { return m_email; }
-  const QString& comment() const { return m_comment; }
-  const QString& version() const { return m_version; }
-  const QString& licence() const { return m_licence; }
+  const TQString& name() const { return m_name; }
+  const TQString& author() const { return m_author; }
+  const TQString& email() const { return m_email; }
+  const TQString& comment() const { return m_comment; }
+  const TQString& version() const { return m_version; }
+  const TQString& licence() const { return m_licence; }
 
-  const QString& libraryName() const { return m_libraryName; }
+  const TQString& libraryName() const { return m_libraryName; }
 
  private:
-  QString m_libraryName;
-
-  QString m_name;
-  QString m_author;
-  QString m_email;
-  QString m_comment;
-  QString m_version;
-  QString m_licence;
+  TQString m_libraryName;
+
+  TQString m_name;
+  TQString m_author;
+  TQString m_email;
+  TQString m_comment;
+  TQString m_version;
+  TQString m_licence;
 };
 
 
 /**
  * Base class for all plugins. You may use the K3bPluginFactory to make your plugin available.
  */
-class LIBK3B_EXPORT K3bPlugin : public QObject
+class LIBK3B_EXPORT K3bPlugin : public TQObject
 {
   Q_OBJECT
+  TQ_OBJECT
 
     friend class K3bPluginManager;
 
  public:
-  K3bPlugin( QObject* parent = 0, const char* name = 0 );
+  K3bPlugin( TQObject* tqparent = 0, const char* name = 0 );
   virtual ~K3bPlugin();
 
   const K3bPluginInfo& pluginInfo() const { return m_pluginInfo; }
@@ -97,14 +98,14 @@ class LIBK3B_EXPORT K3bPlugin : public QObject
   /**
    * The plugin group.
    */
-  virtual QString group() const = 0;
+  virtual TQString group() const = 0;
 
   /**
    * Returns a widget which configures the plugin.
    *
    * The caller has to destroy the widget
    */
-  virtual K3bPluginConfigWidget* createConfigWidget( QWidget* parent = 0, const char* name = 0 ) const;
+  virtual K3bPluginConfigWidget* createConfigWidget( TQWidget* tqparent = 0, const char* name = 0 ) const;
 
  private:
   K3bPluginInfo m_pluginInfo;
diff --git a/libk3b/plugin/k3bpluginconfigwidget.cpp b/libk3b/plugin/k3bpluginconfigwidget.cpp
index 09b7f0b..b93fa9d 100644
--- a/libk3b/plugin/k3bpluginconfigwidget.cpp
+++ b/libk3b/plugin/k3bpluginconfigwidget.cpp
@@ -22,8 +22,8 @@
 #include <kdebug.h>
 
 
-K3bPluginConfigWidget::K3bPluginConfigWidget( QWidget* parent, const char* name )
-  : QWidget( parent, name )
+K3bPluginConfigWidget::K3bPluginConfigWidget( TQWidget* tqparent, const char* name )
+  : TQWidget( tqparent, name )
 {
 }
 
diff --git a/libk3b/plugin/k3bpluginconfigwidget.h b/libk3b/plugin/k3bpluginconfigwidget.h
index baa07ab..3e5068d 100644
--- a/libk3b/plugin/k3bpluginconfigwidget.h
+++ b/libk3b/plugin/k3bpluginconfigwidget.h
@@ -17,15 +17,16 @@
 #ifndef _K3B_PLUGIN_CONFIG_WIDGET_H_
 #define _K3B_PLUGIN_CONFIG_WIDGET_H_
 
-#include <qwidget.h>
+#include <tqwidget.h>
 #include "k3b_export.h"
 
-class LIBK3B_EXPORT K3bPluginConfigWidget : public QWidget
+class LIBK3B_EXPORT K3bPluginConfigWidget : public TQWidget
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bPluginConfigWidget( QWidget* parent = 0, const char* name = 0 );
+  K3bPluginConfigWidget( TQWidget* tqparent = 0, const char* name = 0 );
   virtual ~K3bPluginConfigWidget();
 
  public slots:
diff --git a/libk3b/plugin/k3bpluginfactory.h b/libk3b/plugin/k3bpluginfactory.h
index 6dbc6cb..463703f 100644
--- a/libk3b/plugin/k3bpluginfactory.h
+++ b/libk3b/plugin/k3bpluginfactory.h
@@ -23,7 +23,7 @@
 #include <klocale.h>
 
 /**
- * Template based on KGenericFactory. This is just here to avoid using the QStringList args parameter
+ * Template based on KGenericFactory. This is just here to avoid using the TQStringList args parameter
  * in every plugin's constructor.
  *
  * Use this as follows:
@@ -64,14 +64,14 @@ class K3bPluginFactory : public KLibFactory
     }
   }
 
-  virtual QObject* createObject( QObject *parent, const char *name,
-				 const char*, const QStringList& ) {
+  virtual TQObject* createObject( TQObject *tqparent, const char *name,
+				 const char*, const TQStringList& ) {
     initializeMessageCatalogue();
-    return new T( parent, name );
+    return new T( tqparent, name );
   }
 
  private:
-  QCString m_instanceName;
+  TQCString m_instanceName;
   bool m_catalogueInitialized;
 
   static KInstance* s_instance;
diff --git a/libk3b/plugin/k3bpluginmanager.cpp b/libk3b/plugin/k3bpluginmanager.cpp
index 3e963a2..5436251 100644
--- a/libk3b/plugin/k3bpluginmanager.cpp
+++ b/libk3b/plugin/k3bpluginmanager.cpp
@@ -27,23 +27,23 @@
 #include <kmessagebox.h>
 #include <klibloader.h>
 
-#include <qptrlist.h>
-#include <qmap.h>
-#include <qdir.h>
+#include <tqptrlist.h>
+#include <tqmap.h>
+#include <tqdir.h>
 
 
 
 class K3bPluginManager::Private
 {
 public:
-  QPtrList<K3bPlugin> plugins;
+  TQPtrList<K3bPlugin> plugins;
 };
 
 
 
 
-K3bPluginManager::K3bPluginManager( QObject* parent, const char* name )
-  : QObject( parent, name )
+K3bPluginManager::K3bPluginManager( TQObject* tqparent, const char* name )
+  : TQObject( tqparent, name )
 {
   d = new Private();
 }
@@ -56,14 +56,14 @@ K3bPluginManager::~K3bPluginManager()
 
 
 
-QStringList K3bPluginManager::groups() const
+TQStringList K3bPluginManager::groups() const
 {
-  QStringList grps;
+  TQStringList grps;
 
-  QPtrList<K3bPlugin> fl;
-  for( QPtrListIterator<K3bPlugin> it( d->plugins );
+  TQPtrList<K3bPlugin> fl;
+  for( TQPtrListIterator<K3bPlugin> it( d->plugins );
        it.current(); ++it ) {
-    if( !grps.contains( it.current()->group() ) )
+    if( !grps.tqcontains( it.current()->group() ) )
 	grps.append( it.current()->group() );
   }
 
@@ -71,10 +71,10 @@ QStringList K3bPluginManager::groups() const
 }
 
 
-QPtrList<K3bPlugin> K3bPluginManager::plugins( const QString& group ) const
+TQPtrList<K3bPlugin> K3bPluginManager::plugins( const TQString& group ) const
 {
-  QPtrList<K3bPlugin> fl;
-  for( QPtrListIterator<K3bPlugin> it( d->plugins );
+  TQPtrList<K3bPlugin> fl;
+  for( TQPtrListIterator<K3bPlugin> it( d->plugins );
        it.current(); ++it ) {
     if( it.current()->group() == group || group.isEmpty() )
       fl.append( it.current() );
@@ -83,12 +83,12 @@ QPtrList<K3bPlugin> K3bPluginManager::plugins( const QString& group ) const
 }
 
 
-void K3bPluginManager::loadPlugin( const QString& fileName )
+void K3bPluginManager::loadPlugin( const TQString& fileName )
 {
   KSimpleConfig c( fileName, true );
   c.setGroup( "K3b Plugin" );
 
-  QString libName = c.readEntry( "Lib" );
+  TQString libName = c.readEntry( "Lib" );
   if( libName.isEmpty() ) {
     kdDebug() << "(K3bPluginManager) no Lib specified in " << fileName << endl;
     return;
@@ -115,7 +115,7 @@ void K3bPluginManager::loadPlugin( const QString& fileName )
 
 	// make sure to only use the latest version of one plugin
 	bool addPlugin = true;
-	for( QPtrListIterator<K3bPlugin> it( d->plugins ); *it; ++it ) {
+	for( TQPtrListIterator<K3bPlugin> it( d->plugins ); *it; ++it ) {
 	  if( it.current()->pluginInfo().name() == plugin->pluginInfo().name() ) {
 	    if( K3bVersion(it.current()->pluginInfo().version()) < K3bVersion(plugin->pluginInfo().version()) ) {
 	      K3bPlugin* p = it.current();
@@ -145,12 +145,12 @@ void K3bPluginManager::loadPlugin( const QString& fileName )
 void K3bPluginManager::loadAll()
 {
   // we simply search the K3b plugin dir for now
-  QStringList dirs = KGlobal::dirs()->findDirs( "data", "k3b/plugins/" );
+  TQStringList dirs = KGlobal::dirs()->findDirs( "data", "k3b/plugins/" );
 
-  for( QStringList::const_iterator it = dirs.begin();
+  for( TQStringList::const_iterator it = dirs.begin();
        it != dirs.end(); ++it ) {
-    QStringList entries = QDir(*it).entryList( "*.plugin", QDir::Files );
-    for( QStringList::const_iterator it2 = entries.begin();
+    TQStringList entries = TQDir(*it).entryList( "*.plugin", TQDir::Files );
+    for( TQStringList::const_iterator it2 = entries.begin();
 	 it2 != entries.end(); ++it2 ) {
       loadPlugin( *it + *it2 );
     }
@@ -163,25 +163,25 @@ int K3bPluginManager::pluginSystemVersion() const
 }
 
 
-int K3bPluginManager::execPluginDialog( K3bPlugin* plugin, QWidget* parent, const char* name )
+int K3bPluginManager::execPluginDialog( K3bPlugin* plugin, TQWidget* tqparent, const char* name )
 {
-  KDialogBase dlg( parent, 
+  KDialogBase dlg( tqparent, 
 		   name, 
 		   true,
-		   i18n("Configure plugin %1").arg( plugin->pluginInfo().name() ) );
+		   i18n("Configure plugin %1").tqarg( plugin->pluginInfo().name() ) );
   
   K3bPluginConfigWidget* configWidget = plugin->createConfigWidget( &dlg );
   if( configWidget ) {
     dlg.setMainWidget( configWidget );
-    connect( &dlg, SIGNAL(applyClicked()), configWidget, SLOT(saveConfig()) );
-    connect( &dlg, SIGNAL(okClicked()), configWidget, SLOT(saveConfig()) );
+    connect( &dlg, TQT_SIGNAL(applyClicked()), configWidget, TQT_SLOT(saveConfig()) );
+    connect( &dlg, TQT_SIGNAL(okClicked()), configWidget, TQT_SLOT(saveConfig()) );
     configWidget->loadConfig();
     int r = dlg.exec();
     delete configWidget;
     return r;
   }
   else {
-    KMessageBox::sorry( parent, i18n("No settings available for plugin %1.").arg( plugin->pluginInfo().name() ) );
+    KMessageBox::sorry( tqparent, i18n("No settings available for plugin %1.").tqarg( plugin->pluginInfo().name() ) );
     return 0;
   }
 }
diff --git a/libk3b/plugin/k3bpluginmanager.h b/libk3b/plugin/k3bpluginmanager.h
index 9295dee..c047c1a 100644
--- a/libk3b/plugin/k3bpluginmanager.h
+++ b/libk3b/plugin/k3bpluginmanager.h
@@ -16,14 +16,14 @@
 #ifndef _K3B_PLUGIN_MANAGER_H_
 #define _K3B_PLUGIN_MANAGER_H_
 
-#include <qobject.h>
-#include <qptrlist.h>
-#include <qstringlist.h>
+#include <tqobject.h>
+#include <tqptrlist.h>
+#include <tqstringlist.h>
 #include "k3b_export.h"
 
 
 class K3bPlugin;
-class QWidget;
+class TQWidget;
 
 
 /**
@@ -32,23 +32,24 @@ class QWidget;
  * Like the K3bCore the single instance (which has to be created manually)
  * can be obtained with the k3bpluginmanager macro.
  */
-class LIBK3B_EXPORT K3bPluginManager : public QObject
+class LIBK3B_EXPORT K3bPluginManager : public TQObject
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
-  K3bPluginManager( QObject* parent = 0, const char* name = 0 );
+  K3bPluginManager( TQObject* tqparent = 0, const char* name = 0 );
   ~K3bPluginManager();
 
   /**
    * if group is empty all plugins are returned
    */
-  QPtrList<K3bPlugin> plugins( const QString& group = QString::null ) const;
+  TQPtrList<K3bPlugin> plugins( const TQString& group = TQString() ) const;
 
   /**
    * Returnes a list of the available groups.
    */
-  QStringList groups() const;
+  TQStringList groups() const;
 
   int pluginSystemVersion() const;
 
@@ -58,9 +59,9 @@ class LIBK3B_EXPORT K3bPluginManager : public QObject
    */
   void loadAll();
 
-  void loadPlugin( const QString& fileName );
+  void loadPlugin( const TQString& fileName );
 
-  int execPluginDialog( K3bPlugin*, QWidget* parent = 0, const char* name = 0 );
+  int execPluginDialog( K3bPlugin*, TQWidget* tqparent = 0, const char* name = 0 );
 
  private:
   class Private;
diff --git a/libk3b/plugin/k3bprojectplugin.h b/libk3b/plugin/k3bprojectplugin.h
index c15b9a3..a8d0c47 100644
--- a/libk3b/plugin/k3bprojectplugin.h
+++ b/libk3b/plugin/k3bprojectplugin.h
@@ -17,7 +17,7 @@
 #define _K3B_PROJECT_PLUGIN_H_
 
 #include <k3bplugin.h>
-#include <qstring.h>
+#include <tqstring.h>
 #include "k3b_export.h"
 class K3bDoc;
 
@@ -26,8 +26,8 @@ class K3bDoc;
  * K3bProjectPluginGUIBase interface. That way K3b can embed the GUI into 
  * a fancy dialog which fits the overall look.
  *
- * This is not derived from QWidget to make it possible to inherit
- * from other QWidget derivates.
+ * This is not derived from TQWidget to make it possible to inherit
+ * from other TQWidget derivates.
  */
 class K3bProjectPluginGUIBase
 {
@@ -35,13 +35,13 @@ class K3bProjectPluginGUIBase
   K3bProjectPluginGUIBase() {}
   virtual ~K3bProjectPluginGUIBase() {}
 
-  virtual QWidget* qWidget() = 0;
+  virtual TQWidget* qWidget() = 0;
 
   /**
    * Title used for the GUI
    */
-  virtual QString title() const = 0;
-  virtual QString subTitle() const { return QString::null; }
+  virtual TQString title() const = 0;
+  virtual TQString subTitle() const { return TQString(); }
 
   virtual void readSettings( KConfigBase* ) {}
   virtual void saveSettings( KConfigBase* ) {}
@@ -68,6 +68,7 @@ class K3bProjectPluginGUIBase
 class LIBK3B_EXPORT K3bProjectPlugin : public K3bPlugin
 {
   Q_OBJECT
+  TQ_OBJECT
 
  public:
   /**
@@ -76,8 +77,8 @@ class LIBK3B_EXPORT K3bProjectPlugin : public K3bPlugin
    *            @p activate() will not be used. A plugin has a GUI if it's functionality is started 
    *            by some user input.
    */
-  K3bProjectPlugin( int type, bool gui = false, QObject* parent = 0, const char* name = 0 )
-  : K3bPlugin( parent, name ),
+  K3bProjectPlugin( int type, bool gui = false, TQObject* tqparent = 0, const char* name = 0 )
+  : K3bPlugin( tqparent, name ),
     m_type(type),
     m_hasGUI(gui) {
   }
@@ -100,7 +101,7 @@ class LIBK3B_EXPORT K3bProjectPlugin : public K3bPlugin
   };
 
   // TODO: maybe we should use something like "ProjectPlugin/AudioCD" based on the type?
-  QString group() const { return "ProjectPlugin"; }
+  TQString group() const { return "ProjectPlugin"; }
 
   /**
    * audio, data, videocd, or videodvd
@@ -112,23 +113,23 @@ class LIBK3B_EXPORT K3bProjectPlugin : public K3bPlugin
   /**
    * Text used for menu entries and the like.
    */
-  const QString& text() const { return m_text; }
-  const QString& toolTip() const { return m_toolTip; }
-  const QString& whatsThis() const { return m_whatsThis; }
-  const QString& icon() const { return m_icon; }
+  const TQString& text() const { return m_text; }
+  const TQString& toolTip() const { return m_toolTip; }
+  const TQString& whatsThis() const { return m_whatsThis; }
+  const TQString& icon() const { return m_icon; }
 
   bool hasGUI() const { return m_hasGUI; }
 
   /**
    * Create the GUI which provides the features for the plugin.
    * This only needs to be implemented in case hasGUI returns true.
-   * The returned object has to be a QWidget based class.
+   * The returned object has to be a TQWidget based class.
    *
    * @param doc based on the type returned by the factory
    *            this will be the doc to work on. It should
    *            be dynamically casted to the needed project type.
    */
-  virtual K3bProjectPluginGUIBase* createGUI( K3bDoc* doc, QWidget* = 0, const char* = 0 ) { Q_UNUSED(doc); return 0; }
+  virtual K3bProjectPluginGUIBase* createGUI( K3bDoc* doc, TQWidget* = 0, const char* = 0 ) { Q_UNUSED(doc); return 0; }
 
   /**
    * This is where the action happens.
@@ -138,23 +139,23 @@ class LIBK3B_EXPORT K3bProjectPlugin : public K3bPlugin
    *            this will be the doc to work on. It should
    *            be dynamically casted to the needed project type.
    *
-   * @param parent the parent widget to be used for things like progress dialogs.
+   * @param tqparent the tqparent widget to be used for things like progress dialogs.
    */
-  virtual void activate( K3bDoc* doc, QWidget* parent ) { Q_UNUSED(doc); Q_UNUSED(parent); }
+  virtual void activate( K3bDoc* doc, TQWidget* tqparent ) { Q_UNUSED(doc); Q_UNUSED(tqparent); }
 
  protected:
-  void setText( const QString& s ) { m_text = s; }
-  void setToolTip( const QString& s ) { m_toolTip = s; }
-  void setWhatsThis( const QString& s ) { m_whatsThis = s; }
-  void setIcon( const QString& s ) { m_icon = s; }
+  void setText( const TQString& s ) { m_text = s; }
+  void setToolTip( const TQString& s ) { m_toolTip = s; }
+  void setWhatsThis( const TQString& s ) { m_whatsThis = s; }
+  void setIcon( const TQString& s ) { m_icon = s; }
 
  private:
   int m_type;
   bool m_hasGUI;
-  QString m_text;
-  QString m_toolTip;
-  QString m_whatsThis;
-  QString m_icon;
+  TQString m_text;
+  TQString m_toolTip;
+  TQString m_whatsThis;
+  TQString m_icon;
 };
 
 
diff --git a/libk3b/plugin/libsamplerate/samplerate.h b/libk3b/plugin/libsamplerate/samplerate.h
index dfc4448..f83ae48 100644
--- a/libk3b/plugin/libsamplerate/samplerate.h
+++ b/libk3b/plugin/libsamplerate/samplerate.h
@@ -123,8 +123,8 @@ const char* src_strerror (int error) ;
 
 enum
 {
-	SRC_SINC_BEST_QUALITY		= 0,
-	SRC_SINC_MEDIUM_QUALITY		= 1,
+	SRC_SINC_BEST_TQUALITY		= 0,
+	SRC_SINC_MEDIUM_TQUALITY		= 1,
 	SRC_SINC_FASTEST			= 2,
 	SRC_ZERO_ORDER_HOLD			= 3,
 	SRC_LINEAR					= 4
diff --git a/libk3b/plugin/libsamplerate/src_sinc.c b/libk3b/plugin/libsamplerate/src_sinc.c
index ddfc06b..cca8b64 100644
--- a/libk3b/plugin/libsamplerate/src_sinc.c
+++ b/libk3b/plugin/libsamplerate/src_sinc.c
@@ -114,10 +114,10 @@ const char*
 sinc_get_name (int src_enum)
 {
 	switch (src_enum)
-	{	case SRC_SINC_BEST_QUALITY :
+	{	case SRC_SINC_BEST_TQUALITY :
 			return "Best Sinc Interpolator" ;
 
-		case SRC_SINC_MEDIUM_QUALITY :
+		case SRC_SINC_MEDIUM_TQUALITY :
 			return "Medium Sinc Interpolator" ;
 
 		case SRC_SINC_FASTEST :
@@ -131,10 +131,10 @@ const char*
 sinc_get_description (int src_enum)
 {
 	switch (src_enum)
-	{	case SRC_SINC_BEST_QUALITY :
+	{	case SRC_SINC_BEST_TQUALITY :
 			return "Band limitied sinc interpolation, best quality, 97dB SNR, 96% BW." ;
 
-		case SRC_SINC_MEDIUM_QUALITY :
+		case SRC_SINC_MEDIUM_TQUALITY :
 			return "Band limitied sinc interpolation, medium quality, 97dB SNR, 90% BW." ;
 
 		case SRC_SINC_FASTEST :
@@ -170,7 +170,7 @@ sinc_set_converter (SRC_PRIVATE *psrc, int src_enum)
 	psrc->reset = sinc_reset ;
 
 	switch (src_enum)
-	{	case SRC_SINC_BEST_QUALITY :
+	{	case SRC_SINC_BEST_TQUALITY :
 				temp_filter.coeffs = high_qual_coeffs ;
 				temp_filter.coeff_half_len = (sizeof (high_qual_coeffs) / sizeof (coeff_t)) - 1 ;
 				temp_filter.index_inc = 128 ;
@@ -178,7 +178,7 @@ sinc_set_converter (SRC_PRIVATE *psrc, int src_enum)
 				temp_filter.coeff_len = sizeof (high_qual_coeffs) / sizeof (coeff_t) ;
 				break ;
 
-		case SRC_SINC_MEDIUM_QUALITY :
+		case SRC_SINC_MEDIUM_TQUALITY :
 				temp_filter.coeffs = mid_qual_coeffs ;
 				temp_filter.coeff_half_len = (sizeof (mid_qual_coeffs) / sizeof (coeff_t)) - 1 ;
 				temp_filter.index_inc = 128 ;