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Diffstat (limited to 'krec/krecfile.h')
| -rw-r--r-- | krec/krecfile.h | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/krec/krecfile.h b/krec/krecfile.h new file mode 100644 index 00000000..ba307838 --- /dev/null +++ b/krec/krecfile.h @@ -0,0 +1,201 @@ +/*************************************************************************** + copyright : (C) 2003 by Arnold Krille + email : arnold@arnoldarts.de + ***************************************************************************/ + +/*************************************************************************** + * * + * 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 of the License. * + * * + ***************************************************************************/ + +#ifndef KRECFILE_H +#define KRECFILE_H + +#include <qobject.h> +#include <qstring.h> +#include <qvaluelist.h> + +#include <arts/common.h> + +class KRecBuffer; +class KTempDir; +class KSimpleConfig; +class QFile; +class KRecFileViewWidget; + +class KRecFile : virtual public QObject { + Q_OBJECT + friend class KRecFileWidget; +public: + KRecFile( QObject*, const char* =0 ); + KRecFile( const QString &, QObject*, const char* =0 ); + ~KRecFile(); + + QString filename(); + void filename( const QString &); + + bool saved() const { return _saved; } + int samplerate() const { return _samplerate; } + int channels() const { return _channels; } + int bits() const { return _bits; } + + QIODevice::Offset offsetSize() const { return samplesToOffset( _size ); } + QIODevice::Offset offsetPosition() const { return samplesToOffset( _pos ); } + + int size() const { return _size; } + int position() const { return _pos; } + + /// Calculates an offset into a frames-value depending on the files settings (channels and bits) + int offsetToSamples( QIODevice::Offset ) const; + QIODevice::Offset samplesToOffset( int ) const; +public slots: + /// Creates a new empty buffer and marks it for recording. + void newBuffer(); + + /// Deletes the buffer from the file. + void deleteBuffer( KRecBuffer* =0 ); + + void writeData( Arts::mcopbyte* data, uint length ); + void writeData( QByteArray* ); + void writeData( QByteArray& ); + + void save( const QString & ); + void exportwave( const QString & ); + + /// Fills a QByteArray with values from the specified Offset. + QByteArray* getData( int ); + + void getData( QByteArray& ); + + void newPos( int ); + +private slots: + void newPos( KRecBuffer*, QIODevice::Offset ); + void newSize( KRecBuffer*, QIODevice::Offset ); +signals: + /// Position signals + void posChanged( int ); + void sizeChanged( int ); + /// The end of the file is reached, you should stop reading. + void endReached(); + + /// GUI-Signals + void sNewBuffer( KRecBuffer* ); + void sDeleteBuffer( KRecBuffer* ); + + void filenameChanged( const QString & ); +private: + void saveProps(); + void loadProps(); + /** + Creates a new buffer for a given file + @param filename Name of the file + */ + void newBuffer( const QString &filename ); + /** + Adds buffer to the buffers. + @param buffer The to be added buffer + */ + void newBuffer( KRecBuffer* buffer ); + + /// Get the top-most-buffer at the specified position. + int getTopBuffer_int( int ); + KRecBuffer* getTopBuffer_buffer( int ); + + bool _saved; + QString _filename; + int _samplerate, _channels, _bits; + int _currentBuffer; + QValueList<KRecBuffer*> _buffers; + KTempDir *_dir; + KSimpleConfig *_config; + int _pos, _size; + + void init(); +}; + +class QFile; +class QDir; +class QFileInfo; +class KConfig; +class QDataStream; + +class KRecBuffer : virtual public QObject { + Q_OBJECT +public: + KRecBuffer( const QString &, int, bool, KRecFile*, const char* =0 ); + ~KRecBuffer(); + + // After how many samples in the File this Buffer starts... + int startpos() const; + + QIODevice::Offset size() const; + int sizeInSamples() const { return _krecfile->offsetToSamples( size() ); } + + /** + Writes out its Config + It doesn't set the group. + @param config the KConfig where the data gets written + */ + void writeConfig( KConfig* config ); + + /** + restores a KRecBuffer from Config + The group has to be set the right way. + @param config The configuration thats read + @param dir The directory where the file is saved + */ + static KRecBuffer* fromConfig( KConfig* config, QDir* dir, KRecFile* p, const char* n=0 ); + + QString filename() const; + + bool active() const; + + QString title() const; + QString comment() const; +public slots: + /// writes the data into the buffer + void writeData( Arts::mcopbyte* data, uint length ); + void writeData( QByteArray* ); + void writeData( QByteArray& ); + /// gets the data from the stream + void getData( QByteArray& ); + + void setPos( QIODevice::Offset ); + + void setActive( bool ); + + void deleteBuffer(); + + void setTitle( const QString & ); + void setComment( const QString & ); + + /// Returns the sample at the specified position and channel. + float getSample( int pos, int channel ); + float* getsamples( int start, int end, int channel ); +signals: + void posChanged( KRecBuffer*, QIODevice::Offset ); + void sizeChanged( KRecBuffer*, QIODevice::Offset ); + void activeChanged( bool ); + + /// Is emitted when something has changed. + void somethingChanged(); + + void deleteSelf( KRecBuffer* ); +private: + KRecFile* _krecfile; + QFile* _file; + QDataStream* _stream; + QFileInfo* _fileinfo; + bool _open, _active; + QIODevice::Offset _pos; + int _start; + QString _title, _comment; +}; + +#endif + +// vim:sw=4:ts=4 |