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Diffstat (limited to 'tqtinterface/qt4/src/kernel/tqsound.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/kernel/tqsound.cpp | 316 |
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diff --git a/tqtinterface/qt4/src/kernel/tqsound.cpp b/tqtinterface/qt4/src/kernel/tqsound.cpp new file mode 100644 index 0000000..afb3871 --- /dev/null +++ b/tqtinterface/qt4/src/kernel/tqsound.cpp @@ -0,0 +1,316 @@ +/**************************************************************************** +** +** Implementation of TQSound class and TQAuServer internal class +** +** Created : 000117 +** +** Copyright (C) 1999-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.TQPL +** included in the packaging of this file. Licensees holding valid TQt +** Commercial licenses may use this file in accordance with the TQt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "tqsound.h" + +#ifndef TQT_NO_SOUND + +#include "tqptrlist.h" + +static TQPtrList<TQAuServer> *servers=0; + +TQAuServer::TQAuServer(TQObject* tqparent, const char* name) : + TQObject(tqparent,name) +{ + if ( !servers ) { + servers = new TQPtrList<TQAuServer>; + // ### add cleanup + } + servers->prepend(this); +} + +TQAuServer::~TQAuServer() +{ + servers->remove(this); + if ( servers->count() == 0 ) { + delete servers; + servers = 0; + } +} + +void TQAuServer::play(const TQString& filename) +{ + TQSound s(filename); + play(&s); +} + +extern TQAuServer* qt_new_audio_server(); + +static TQAuServer& server() +{ + if (!servers) qt_new_audio_server(); + return *servers->first(); +} + +class TQSoundData { +public: + TQSoundData(const TQString& fname) : + filename(fname), bucket(0), looprem(0), looptotal(1) + { + } + + ~TQSoundData() + { + delete bucket; + } + + TQString filename; + TQAuBucket* bucket; + int looprem; + int looptotal; +}; + +/*! + \class TQSound tqsound.h + \brief The TQSound class provides access to the platform audio facilities. + + \ingroup multimedia + \mainclass + + TQt provides the most commonly required audio operation in GUI + applications: asynchronously playing a sound file. This is most + easily accomplished with a single call: + \code + TQSound::play("mysounds/bells.wav"); + \endcode + + A second API is provided in which a TQSound object is created from + a sound file and is played later: + \code + TQSound bells("mysounds/bells.wav"); + + bells.play(); + \endcode + + Sounds played using the second model may use more memory but play + more immediately than sounds played using the first model, + depending on the underlying platform audio facilities. + + On Microsoft Windows the underlying multimedia system is used; + only WAVE format sound files are supported. + + On X11 the \link ftp://ftp.x.org/contrib/audio/nas/ Network Audio + System\endlink is used if available, otherwise all operations work + silently. NAS supports WAVE and AU files. + + On Macintosh, ironically, we use QT (\link + http://quicktime.apple.com QuickTime\endlink) for sound, this + means all QuickTime formats are supported by TQt/Mac. + + On TQt/Embedded, a built-in mixing sound server is used, which + accesses \c /dev/dsp directly. Only the WAVE format is supported. + + The availability of sound can be tested with + TQSound::isAvailable(). +*/ + +/*! + \fn static bool TQSound::available() + + Returns TRUE if sound support is available; otherwise returns FALSE. +*/ + +/*! + Plays the sound in a file called \a filename. +*/ +void TQSound::play(const TQString& filename) +{ + server().play(filename); +} + +/*! + Constructs a TQSound that can quickly play the sound in a file + named \a filename. + + This may use more memory than the static \c play function. + + The \a tqparent and \a name arguments (default 0) are passed on to + the TQObject constructor. +*/ +TQSound::TQSound(const TQString& filename, TQObject* tqparent, const char* name) : + TQObject(tqparent,name), + d(new TQSoundData(filename)) +{ + server().init(this); +} + +/*! + Destroys the sound object. If the sound is not finished playing stop() is called on it. + + \sa stop() isFinished() +*/ +TQSound::~TQSound() +{ + if ( !isFinished() ) + stop(); + delete d; +} + +/*! + Returns TRUE if the sound has finished playing; otherwise returns FALSE. + + \warning On Windows this function always returns TRUE for unlooped sounds. +*/ +bool TQSound::isFinished() const +{ + return d->looprem == 0; +} + +/*! + \overload + + Starts the sound playing. The function returns immediately. + Depending on the platform audio facilities, other sounds may stop + or may be mixed with the new sound. + + The sound can be played again at any time, possibly mixing or + replacing previous plays of the sound. +*/ +void TQSound::play() +{ + d->looprem = d->looptotal; + server().play(this); +} + +/*! + Returns the number of times the sound will play. +*/ +int TQSound::loops() const +{ + return d->looptotal; +} + +/*! + Returns the number of times the sound will loop. This value + decreases each time the sound loops. +*/ +int TQSound::loopsRemaining() const +{ + return d->looprem; +} + +/*! + Sets the sound to repeat \a l times when it is played. Passing the + value -1 will cause the sound to loop indefinitely. + + \sa loops() +*/ +void TQSound::setLoops(int l) +{ + d->looptotal = l; +} + +/*! + Returns the filename associated with the sound. +*/ +TQString TQSound::fileName() const +{ + return d->filename; +} + +/*! + Stops the sound playing. + + On Windows the current loop will finish if a sound is played + in a loop. + + \sa play() +*/ +void TQSound::stop() +{ + server().stop(this); +} + + +/*! + Returns TRUE if sound facilities exist on the platform; otherwise + returns FALSE. An application may choose either to notify the user + if sound is crucial to the application or to operate silently + without bothering the user. + + If no sound is available, all TQSound operations work silently and + quickly. +*/ +bool TQSound::isAvailable() +{ + return server().okay(); +} + +/*! + Sets the internal bucket record of sound \a s to \a b, deleting + any previous setting. +*/ +void TQAuServer::setBucket(TQSound* s, TQAuBucket* b) +{ + delete s->d->bucket; + s->d->bucket = b; +} + +/*! + Returns the internal bucket record of sound \a s. +*/ +TQAuBucket* TQAuServer::bucket(TQSound* s) +{ + return s->d->bucket; +} + +/*! + Decrements the TQSound::loopRemaining() value for sound \a s, + returning the result. +*/ +int TQAuServer::decLoop(TQSound* s) +{ + if ( s->d->looprem > 0 ) + --s->d->looprem; + return s->d->looprem; +} + +/*! + Initializes the sound. The default implementation does nothing. +*/ +void TQAuServer::init(TQSound*) +{ +} + +TQAuBucket::~TQAuBucket() +{ +} + +#endif // TQT_NO_SOUND |