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#include "speechclient.hh"
#include <QtCore>
#include <AppKit/NSSpeechSynthesizer.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSError.h>
#include <Foundation/NSString.h>
#include <Foundation/NSAutoreleasePool.h>
static QString NSStringToQString(const NSString * nsstr )
{
return QString::fromUtf8( [ nsstr UTF8String ] );
}
static NSString * QStringToNSString( QString const & qstr, bool needAlloc = false )
{
if( needAlloc )
return [ [ NSString alloc ] initWithUTF8String : qstr.toUtf8().data() ];
return [ NSString stringWithUTF8String : qstr.toUtf8().data() ];
}
struct SpeechClient::InternalData
{
InternalData( Config::VoiceEngine const & e ):
waitingFinish( false )
, engine( e )
, oldVolume( -1 )
, oldRate( -1 )
, stringToPlay( nil )
{
NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
sp = [ [ NSSpeechSynthesizer alloc ] initWithVoice : QStringToNSString( e.id ) ];
[ pool drain ];
}
~InternalData()
{
[ sp release ];
if( stringToPlay != nil )
[ stringToPlay release ];
}
NSSpeechSynthesizer * sp;
bool waitingFinish;
SpeechClient::Engine engine;
float oldVolume;
float oldRate;
QString oldMode;
NSString * stringToPlay;
};
SpeechClient::SpeechClient( Config::VoiceEngine const & e, QObject * parent ):
QObject( parent ),
internalData( new InternalData( e ) )
{
}
SpeechClient::~SpeechClient()
{
delete internalData;
}
SpeechClient::Engines SpeechClient::availableEngines()
{
Engines engines;
NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
NSArray * voices = [ NSSpeechSynthesizer availableVoices ];
int voicesNum = [ voices count ];
for( int i = 0; i < voicesNum; i++ )
{
QString id = NSStringToQString( [ voices objectAtIndex : i ] );
QString name;
int n = id.lastIndexOf( '.' );
if( n >= 0 )
name = id.right( id.size() - n - 1 );
else
name = id;
engines.push_back( SpeechClient::Engine( Config::VoiceEngine(
id, name, 50, 50 ) ) );
}
[ pool drain ];
return engines;
}
const SpeechClient::Engine & SpeechClient::engine() const
{
return internalData->engine;
}
bool SpeechClient::tell( QString const & text, int volume, int rate )
{
if( !internalData->sp || [ NSSpeechSynthesizer isAnyApplicationSpeaking ] )
return false;
if ( internalData->waitingFinish )
return false;
if( volume < 0 )
volume = engine().volume;
if( rate < 0 )
rate = engine().rate;
NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
internalData->oldVolume = [ internalData->sp volume ];
[ internalData->sp setVolume : ( volume / 100.0 ) ];
internalData->oldRate = [ internalData->sp rate ];
[ internalData->sp setRate : ( rate * 2.0 + 100 ) ];
NSError * err = nil;
NSString * oldMode = [ internalData->sp objectForProperty : NSSpeechInputModeProperty error : &err ];
if( err == nil || [ err code ] == 0 )
{
internalData->oldMode = NSStringToQString( oldMode );
[ internalData->sp setObject : NSSpeechModeText forProperty : NSSpeechInputModeProperty error : &err ];
}
else
internalData->oldMode.clear();
internalData->stringToPlay = QStringToNSString( text, true );
bool ok = [ internalData->sp startSpeakingString : internalData->stringToPlay ];
emit started( ok );
if ( ok )
{
internalData->waitingFinish = true;
startTimer( 50 );
}
else
{
if( internalData->stringToPlay != nil )
[ internalData->stringToPlay release ];
internalData->stringToPlay = nil;
emit finished();
}
[ pool drain ];
return ok;
}
bool SpeechClient::say( QString const & text, int volume, int rate )
{
(void) text;
(void) volume;
(void) rate;
return false;
}
void SpeechClient::timerEvent( QTimerEvent * evt )
{
QObject::timerEvent( evt );
if ( !internalData->waitingFinish )
return;
if ( ![ internalData->sp isSpeaking ] )
{
killTimer( evt->timerId() ) ;
internalData->waitingFinish = false;
NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
if( internalData->oldVolume >=0 )
[ internalData->sp setVolume : internalData->oldVolume ];
if( internalData->oldRate >=0 )
[ internalData->sp setRate : internalData->oldRate ];
internalData->oldVolume = -1;
internalData->oldRate = -1;
NSError * err;
if( !internalData->oldMode.isEmpty() )
[ internalData->sp setObject : QStringToNSString( internalData->oldMode )
forProperty : NSSpeechInputModeProperty error : &err ];
internalData->oldMode.clear();
if( internalData->stringToPlay != nil )
[ internalData->stringToPlay release ];
internalData->stringToPlay = nil;
[ pool drain ];
emit finished();
}
}
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