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kdelibs/interfaces/kspeech/kspeech.h
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/***************************************************** vim:set ts=4 sw=4 sts=4:
KSpeech
The KDE Text-to-Speech API.
------------------------------
Copyright:
(C) 2006 by Gary Cramblitt <garycramblitt@comcast.net>
(C) 2009 by Jeremy Whiting <jpwhiting@kde.org>
-------------------
Original author: Gary Cramblitt <garycramblitt@comcast.net>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifndef KSPEECH_H
#define KSPEECH_H
#include "kspeech_export.h"
// Qt includes
#include <QtCore/QObject>
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtCore/QByteArray>
class KSpeechPrivate;
/**
* KSpeech -- the KDE Text-to-Speech API.
*
* Note: Applications do not use this class directly. Instead,
* use the @ref KSpeechInterface object as described in
* @ref programming.
*
* See also @ref kspeech_intro
*/
class KSPEECH_EXPORT KSpeech : public QObject
{
Q_OBJECT
public:
/**
* @enum JobPriority
* Determines the priority of jobs submitted by @ref say.
* maps directly to SPDPriority
*/
enum JobPriority
{
jpAll = 0, /**< All priorities. Used for information retrieval only. */
jpScreenReaderOutput = 1, /**< Screen Reader job. SPD_IMPORTANT */
jpWarning = 2, /**< Warning job. SPD_NOTIFICATION */
jpMessage = 3, /**< Message job.SPD_MESSAGE */
jpText = 4, /**< Text job. SPD_TEXT */
jpProgress = 5 /**< Progress report. SPD_PROGRESS added KDE 4.4 */
};
/**
* @enum JobState
* Job states returned by method @ref getJobState.
*/
enum JobState
{
jsQueued = 0, /**< Job has been queued but is not yet speakable. */
jsFiltering = 1, /**< Job is being filtered. */
jsSpeakable = 2, /**< Job is speakable, but is not speaking. */
jsSpeaking = 3, /**< Job is currently speaking. */
jsPaused = 4, /**< Job is paused. */
jsInterrupted = 5, /**< Job is paused because it has been interrupted by another job. */
jsFinished = 6, /**< Job is finished and is deleteable. */
jsDeleted = 7 /**< Job is deleted from the queue. */
};
/**
* @enum SayOptions
* Hints about text content when sending via @ref say.
*/
enum SayOptions
{
soNone = 0x0000, /**< No options specified. Autodetected. */
soPlainText = 0x0001, /**< The text contains plain text. */
soHtml = 0x0002, /**< The text contains HTML markup. */
soSsml = 0x0004, /**< The text contains SSML markup. */
soChar = 0x0008, /**< The text should be spoken as individual characters. */
soKey = 0x0010, /**< The text contains a keyboard symbolic key name. */
soSoundIcon = 0x0020 /**< The text is the name of a sound icon. */
};
/**
* @enum TalkerCapabilities1
* Flags for synthesizer/talker capabilities.
* All items marked FALSE are hard-coded off at this time.
*/
enum TalkerCapabilities1
{
tcCanListVoices = 0x00000001,
tcCanSetVoiceByProperties = 0x00000002,
tcCanGetCurrentVoice = 0x00000004,
tcCanSetRateRelative = 0x00000008, /**< FALSE */
tcCanSetRateAbsolute = 0x00000010,
tcCanGetRateDefault = 0x00000020,
tcCanSetPitchRelative = 0x00000040, /**< FALSE */
tcCanSetPitchAbsolute = 0x00000080,
tcCanGetPitchDefault = 0x00000100,
tcCanSetPitchRangeRelative = 0x00000200, /**< FALSE */
tcCanSetPitchRangeAbsolute = 0x00000400, /**< FALSE */
tcCanGetPitchRangeDefault = 0x00000800, /**< FALSE */
tcCanSetVolumeRelative = 0x00001000, /**< FALSE */
tcCanSetVolumeAbsolute = 0x00002000,
tcCanGetVolumeDefault = 0x00004000,
tcCanSetPunctuationModeAll = 0x00008000, /**< FALSE */
tcCanSetPunctuationModeNone = 0x00010000, /**< FALSE */
tcCanSetPunctuationModeSome = 0x00020000, /**< FALSE */
tcCanSetPunctuationDetail = 0x00040000, /**< FALSE */
tcCanSetCapitalLettersModeSpelling = 0x00080000, /**< FALSE */
tcCanSetCapitalLettersModeIcon = 0x00100000, /**< FALSE */
tcCanSetCapitalLettersModePitch = 0x00200000, /**< FALSE */
tcCanSetNumberGrouping = 0x00400000, /**< FALSE */
tcCanSayTextFromPosition = 0x00800000, /**< FALSE */
tcCanSayChar = 0x01000000, /**< FALSE */
tcCanSayKey = 0x02000000, /**< FALSE */
tcCanSayIcon = 0x04000000, /**< FALSE */
tcCanSetDictionary = 0x08000000, /**< FALSE */
tcCanRetrieveAudio = 0x10000000, /**< FALSE */
tcCanPlayAudio = 0x20000000 /**< FALSE */
};
/**
* @enum TalkerCapabilities2
* All items marked FALSE are hard-coded off at this time.
*/
enum TalkerCapabilities2
{
tcCanReportEventsBySentences = 0x00000001,
tcCanReportEventsByWords = 0x00000002, /**< FALSE */
tcCanReportCustomIndexMarks = 0x00000004, /**< FALSE */
tcHonorsPerformanceGuidelines1 = 0x00000008, /**< FALSE */
tcHonorsPerformanceGuidelines2 = 0x00000010, /**< FALSE */
tcHonorsPerformanceGuidelines = 0x00000018, /**< FALSE */
tcCanDeferMessage = 0x00000020, /**< FALSE */
tcCanParseSsml = 0x00000040,
tcSupportsMultilingualUtterances = 0x00000080, /**< FALSE */
tcCanParseHtml = 0x00000100
};
/**
* @enum MarkerType
* Types of markers emitted by @ref marker signal.
*/
enum MarkerType
{
mtSentenceBegin = 0,
mtSentenceEnd = 1,
mtWordBegin = 2,
mtPhonemeBegin = 3,
mtCustom = 4
};
/**
* Constructor.
* Note: Applications do not create instances of KSpeech.
* Instead create KSpeechInterface object. See @ref programming.
*/
KSpeech(QObject *parent=0);
/**
* Destructor.
*/
~KSpeech();
public: // PROPERTIES
Q_PROPERTY(bool isSpeaking READ isSpeaking)
Q_PROPERTY(QString version READ version)
public Q_SLOTS: // METHODS
/**
* Returns true if KTTSD is currently speaking.
* @return True if currently speaking.
*/
bool isSpeaking() const;
/**
* Returns the version number of KTTSD.
* @return Version number string.
*/
QString version() const;
/**
* Returns the friendly display name for the application.
* @return Application display name.
*
* If application has not provided a friendly name, the DBUS connection name is returned.
*/
QString applicationName();
/**
* Sets a friendly display name for the application.
* @param applicationName Friendly name for the application.
*/
void setApplicationName(const QString &applicationName);
/**
* Returns the default talker for the application.
* @return Talker.
*
* The default is "", which uses the default talker configured by user.
*/
QString defaultTalker();
/**
* Sets the default talker for the application.
* @param defaultTalker Default talker. Example: "en".
*/
void setDefaultTalker(const QString &defaultTalker);
/**
* Returns the default priority for speech jobs submitted by the application.
* @return Default job priority.
*
* @see JobPriority
*/
int defaultPriority();
/**
* Sets the default priority for speech jobs submitted by the application.
* @param defaultPriority Default job priority.
*
* @see JobPriority
*/
void setDefaultPriority(int defaultPriority);
/**
* Returns the regular expression used to perform Sentence Boundary
* Detection (SBD) for the application.
* @return Sentence delimiter regular expression.
*
* The default sentence delimiter is
@verbatim
([\\.\\?\\!\\:\\;])(\\s|$|(\\n *\\n))
@endverbatim
*
* Note that backward slashes must be escaped.
*
* @see sentenceparsing
*/
QString sentenceDelimiter();
/**
* Sets the regular expression used to perform Sentence Boundary
* Detection (SBD) for the application.
* @param sentenceDelimiter Sentence delimiter regular expression.
*/
void setSentenceDelimiter(const QString &sentenceDelimiter);
/**
* Returns whether speech jobs for this application are filtered using configured
* filter plugins.
* @return True if filtering is on.
*
* Filtering is on by default.
*/
bool filteringOn();
/**
* Sets whether speech jobs for this application are filtered using configured
* filter plugins.
* @param filteringOn True to set filtering on.
*/
void setFilteringOn(bool filteringOn);
/**
* Returns whether KTTSD will automatically attempt to configure new
* talkers to meet required talker attributes.
* @return True if KTTSD will autoconfigure talkers.
*
* @see defaultTalker
*/
bool autoConfigureTalkersOn();
/** Sets whether KTTSD will automatically attempt to configure new
* talkers to meet required talker attributes.
* @param autoConfigureTalkersOn True to enable auto configuration.
*/
void setAutoConfigureTalkersOn(bool autoConfigureTalkersOn);
/**
* Returns whether application is paused.
* @return True if application is paused.
*/
bool isApplicationPaused();
/**
* Returns the full path name to XSLT file used to convert HTML
* markup to speakable form.
* @return XSLT filename.
*/
QString htmlFilterXsltFile();
/**
* Sets the full path name to an XSLT file used to convert HTML
* markup to speakable form.
* @param htmlFilterXsltFile XSLT filename.
*/
void setHtmlFilterXsltFile(const QString &htmlFilterXsltFile);
/**
* Returns the full path name to XSLT file used to convert SSML
* markup to a speakable form.
* @return XSLT filename.
*/
QString ssmlFilterXsltFile();
/**
* Sets the full path name to XSLT file used to convert SSML
* markup to a speakable form.
* @param ssmlFilterXsltFile XSLT filename.
*/
void setSsmlFilterXsltFile(const QString &ssmlFilterXsltFile);
/**
* Returns whether this is a System Manager application.
* @return True if the application is a System Manager.
*/
bool isSystemManager();
/**
* Sets whether this is a System Manager application.
* @param isSystemManager True if this is a System Manager.
*
* System Managers are used to control and configure overall TTS output.
* When True, many of the KSpeech methods alter their behavior.
*/
void setIsSystemManager(bool isSystemManager);
/**
* Creates and starts a speech job. The job is created at the application's
* default job priority using the default talker.
* @param text The text to be spoken.
* @param options Speech options.
* @return Job Number for the new job.
*
* @see JobPriority
* @see SayOptions
*/
int say(const QString &text, int options);
/**
* Creates and starts a speech job from a specified file.
* @param filename Full path name of the file.
* @param encoding The encoding of the file. Default UTF-8.
* @return Job Number for the new job.
*
* The job is spoken using application's default talker.
* @see defaultTalker
*
* Plain text is parsed into individual sentences using the current sentence delimiter.
* Call @ref setSentenceDelimiter to change the sentence delimiter prior to calling sayFile.
* Call @ref getSentenceCount to retrieve the sentence count after calling sayFile.
*
* The text may contain speech mark language, such as SMML,
* provided that the speech plugin/engine support it. In this case,
* sentence parsing follows the semantics of the markup language.
*/
int sayFile(const QString &filename, const QString &encoding);
/**
* Submits a speech job from the contents of the clipboard.
* The job is spoken using application's default talker.
* @return Job Number for the new job.
*
* @see defaultTalker
*/
int sayClipboard();
/**
* Pauses speech jobs belonging to the application.
* When called by a System Manager, pauses all jobs of all applications.
*/
void pause();
/**
* Resumes speech jobs belonging to the application.
* When called by a System Manager, resumes all jobs of all applications.
*/
void resume();
void stop();
void cancel();
void setSpeed(int speed);
void setPitch(int pitch);
void setVolume(int volume);
/**
* Removes the specified job. If the job is speaking, it is stopped.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
*/
void removeJob(int jobNum);
/**
* Removes all jobs belonging to the application.
* When called from a System Manager, removes all jobs of all applications.
*/
void removeAllJobs();
/**
* Returns the number of sentences in a job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @return Number of sentences in the job.
*/
int getSentenceCount(int jobNum);
/**
* Returns the job number of the currently speaking job (any application).
* @return Job Number
*/
int getCurrentJob();
/**
* Returns the number of jobs belonging to the application
* with the specified job priority.
* @param priority Job Priority.
* @return Number of jobs.
*
* If priority is KSpeech::jpAll, returns the number of jobs belonging
* to the application (all priorities).
*
* When called from a System Manager, returns count of all jobs of the
* specified priority for all applications.
*
* @see JobPriority
*/
int getJobCount(int priority);
/**
* Returns a list job numbers for the jobs belonging to the
* application with the specified priority.
* @param priority Job Priority.
* @return List of job numbers. Note that the numbers
* are strings.
*
* If priority is KSpeech::jpAll, returns the job numbers belonging
* to the application (all priorities).
*
* When called from a System Manager, returns job numbers of the
* specified priority for all applications.
*
* @see JobPriority
*/
QStringList getJobNumbers(int priority);
/**
* Returns the state of a job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @return Job state.
*
* @see JobState
*/
int getJobState(int jobNum);
/**
* Get information about a job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @return A QDataStream containing information about the job.
* Blank if no such job.
*
* The stream contains the following elements:
* - int priority Job Type.
* - int state Job state.
* - QString appId DBUS senderId of the application that requested the speech job.
* - QString talker Talker code as requested by application.
* - int sentenceNum Current sentence being spoken. Sentences are numbered starting at 1.
* - int sentenceCount Total number of sentences in the job.
* - QString applicationName Application's friendly name (if provided by app)
*
* If the job is currently filtering, waits for that to finish before returning.
*
* The following sample code will decode the stream:
@verbatim
QByteArray jobInfo = m_kspeech->getJobInfo(jobNum);
if (jobInfo != QByteArray()) {
QDataStream stream(&jobInfo, QIODevice::ReadOnly);
qint32 priority;
qint32 state;
QString talker;
qint32 sentenceNum;
qint32 sentenceCount;
QString applicationName;
stream >> priority;
stream >> state;
stream >> appId;
stream >> talker;
stream >> sentenceNum;
stream >> sentenceCount;
stream >> applicationName;
};
@endverbatim
*/
QByteArray getJobInfo(int jobNum);
/**
* Return a sentence of a job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @param sentenceNum Sentence Number. Sentence numbers start at 1.
* @return The specified sentence in the specified job. If no such
* job or sentence, returns "".
*/
QString getJobSentence(int jobNum, int sentenceNum);
/**
* Return a list of full Talker Codes for configured talkers.
* @return List of Talker codes.
*/
QStringList getTalkerCodes();
/**
* Given a talker, returns the Talker ID for the talker.
* that will speak the job.
* @param talker Talker. Example: "en".
* @return Talker ID. A Talker ID is an internally-assigned
* identifier for a talker.
*
* This method is normally used only by System Managers.
*/
QString talkerToTalkerId(const QString &talker);
/**
* Returns a bitarray giving the capabilities of a talker.
* @param talker Talker. Example: "en".
* @return A word with bits set according to the capabilities
* of the talker.
*
* @see TalkerCapabilities1
* @see getTalkerCapabilities2
*/
int getTalkerCapabilities1(const QString &talker);
/**
* Returns a bitarray giving the capabilities of a talker.
* @param talker Talker. Example: "en".
* @return A word with bits set according to the capabilities
* of the talker.
*
* @see TalkerCapabilities2
* @see getTalkerCapabilities1
*/
int getTalkerCapabilities2(const QString &talker);
/**
* Return a list of the voice codes of voices available in the synthesizer
* corresponding to a talker.
* @param talker Talker. Example: "synthesizer='Festival'"
* @return List of voice codes.
*
* Voice codes are synthesizer specific.
*/
QStringList getTalkerVoices(const QString &talker);
/**
* Change the talker of an already-submitted job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @param talker Desired new talker.
*/
void changeJobTalker(int jobNum, const QString &talker);
/**
* Move a job one position down in the queue so that it is spoken later.
* If the job is already speaking, it is stopped and will resume
* when processing next gets to it.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
*
* Since there is only one ScreenReaderOutput, this method is meaningless
* for ScreenReaderOutput jobs.
*/
void moveJobLater(int jobNum);
/**
* Advance or rewind N sentences in a job.
* @param jobNum Job Number. If 0, the last job submitted by
* the application.
* @param n Number of sentences to advance (positive) or rewind (negative)
* in the job.
* @return Number of the sentence actually moved to. Sentence numbers
* are numbered starting at 1.
*
* If no such job, does nothing and returns 0.
* If n is zero, returns the current sentence number of the job.
* Does not affect the current speaking/not-speaking state of the job.
*
* Since ScreenReaderOutput jobs are not split into sentences, this method
* is meaningless for ScreenReaderOutput jobs.
*/
int moveRelSentence(int jobNum, int n);
/**
* Display the KttsMgr program so that user can configure KTTS options.
* Only one instance of KttsMgr is displayed.
*/
void showManagerDialog();
/**
* Shuts down KTTSD. Do not call this!
*/
void kttsdExit();
/**
* post ctor helper method that instantiates the dbus adaptor class, and registers
*/
void init();
/**
* Cause KTTSD to re-read its configuration.
*/
void reinit();
/** Called by DBusAdaptor so that KTTSD knows the application that
* called it.
* @param appId DBUS connection name that called KSpeech.
*/
void setCallingAppId(const QString& appId);
Q_SIGNALS: // SIGNALS
/**
* This signal is emitted when KTTSD starts.
*/
void kttsdStarted();
/**
* This signal is emitted just before KTTS exits.
*/
void kttsdExiting();
/**
* This signal is emitted each time the state of a job changes.
* @param appId The DBUS connection name of the application that
* submitted the job.
* @param jobNum Job Number.
* @param state Job state. @ref JobState.
*/
void jobStateChanged(const QString &appId, int jobNum, int state);
/**
* This signal is emitted when a marker is processed.
* Currently only emits mtSentenceBegin and mtSentenceEnd.
* @param appId The DBUS connection name of the application that submitted the job.
* @param jobNum Job Number of the job emitting the marker.
* @param markerType The type of marker.
* Currently either mtSentenceBegin or mtSentenceEnd.
* @param markerData Data for the marker.
* Currently, this is the sentence number of the sentence
* begun or ended. Sentence numbers begin at 1.
*/
void marker(const QString &appId, int jobNum, int markerType, const QString &markerData);
/**
* This signal is emitted when a new job coming in is filtered (or not filtered if no filters
* are on).
* @param prefilterText The text of the speech job
* @param postfilterText The text of the speech job after any filters have been applied
*/
void newJobFiltered(const QString &prefilterText, const QString &postfilterText);
private Q_SLOTS:
void slotJobStateChanged(const QString& appId, int jobNum, KSpeech::JobState state);
void slotMarker(const QString& appId, int jobNum, KSpeech::MarkerType markerType, const QString& markerData);
void slotFilteringFinished();
private:
/**
* The DBUS connection name of the last application that called KTTSD.
*/
QString callingAppId();
/*
* Checks if KTTSD is ready to speak and at least one talker is configured.
* If not, user is prompted to display the configuration dialog.
*/
bool ready();
/**
* Create and initialize the Configuration Data object.
*/
bool initializeConfigData();
/*
* Create and initialize the SpeechData object.
* Deprecated, remove in KDE 5
*/
bool initializeSpeechData();
/*
* Create and initialize the TalkerMgr object.
*/
bool initializeTalkerMgr();
/*
* Create and initialize the speaker.
*/
bool initializeSpeaker();
/*
* If a job number is 0, returns the default job number for a command.
* Returns the job number of the last job queued by the application, or if
* no such job, the current job number.
* @param jobNum The job number passed in the DBUS message. May be 0.
* @return Default job number. 0 if no such job.
*/
int applyDefaultJobNum(int jobNum);
/*
* Announces an event to kDebug.
*/
void announceEvent(const QString& slotName, const QString& eventName);
void announceEvent(const QString& slotName, const QString& eventName, const QString& appId,
int jobNum, MarkerType markerType, const QString& markerData);
void announceEvent(const QString& slotName, const QString& eventName, const QString& appId,
int jobNum, JobState state);
private:
KSpeechPrivate* d;
};
#endif // KSPEECH_H
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