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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/* This file is (c) 2018 Igor Kushnir <igorkuo@gmail.com>
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* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
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#ifndef EXTERNALAUDIOPLAYER_HH_INCLUDED
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#define EXTERNALAUDIOPLAYER_HH_INCLUDED
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#include <QScopedPointer>
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#include <QString>
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#include "audioplayerinterface.hh"
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class ExternalViewer;
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class ExternalAudioPlayer: public AudioPlayerInterface
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{
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Q_OBJECT
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public:
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ExternalAudioPlayer();
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~ExternalAudioPlayer();
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/// \param playerCommandLine_ Will be used in future play() calls.
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void setPlayerCommandLine( QString const & playerCommandLine_ );
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virtual QString play( const char * data, int size );
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virtual void stop();
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private slots:
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void onViewerDestroyed( QObject * destroyedViewer );
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private:
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QString startViewer();
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QString playerCommandLine;
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ExternalViewer * exitingViewer; ///< If not null: points to the previous viewer,
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///< the current viewer (if any) is not started yet
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///< and waits for exitingViewer to be destroyed first.
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struct ScopedPointerDeleteLater
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{
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static void cleanup( QObject * p )
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{
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if ( p )
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p->deleteLater();
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}
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};
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// deleteLater() is safer because viewer actively participates in the QEventLoop.
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QScopedPointer< ExternalViewer, ScopedPointerDeleteLater > viewer;
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};
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#endif // EXTERNALAUDIOPLAYER_HH_INCLUDED
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