~neon/kmouth/master

/***************************************************************************

 *   Copyright (C) 2002 by Gunnar Schmi Dt <kmouth@schmi-dt.de             *

 *             (C) 2015, 2022 by Jeremy Whiting <jpwhiting@kde.org>        *

 *                                                                         *

 *   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; either version 2 of the License, or     *

 *   (at your option) any later version.                                   *

 *                                                                         *

 *   This program 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 General Public License for more details.                          *

 *                                                                         *

 *   You should have received a copy of the GNU General Public License     *

 *   along with this program; if not, write to the                         *

 *   Free Software Foundation, Inc.,                                       *

 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *

 ***************************************************************************/

#include "texttospeechsystem.h"

#include <QTextCodec>

#include <QTextToSpeech>

#include <KSharedConfig>

#include <KConfigGroup>

#include "speech.h"

TextToSpeechSystem::TextToSpeechSystem(QObject *parent)

    : QObject(parent),

      codec(Speech::Local),

      stdIn(true),

      useQtSpeech(true),

      ttsEngine(QLatin1String("speechd")),

      m_speech(new QTextToSpeech(ttsEngine))

{

    buildCodecList();

}

TextToSpeechSystem::~TextToSpeechSystem()

{

    delete codecList;

    delete m_speech;

}

void TextToSpeechSystem::speak(const QString &text, const QString &language)

{

    if (text.length() > 0) {

        if (useQtSpeech) {

            m_speech->say(text);

            return;

        }

        if (codec < Speech::UseCodec)

            (new Speech())->speak(ttsCommand, stdIn, text, language, codec, nullptr);

        else

            (new Speech())->speak(ttsCommand, stdIn, text, language, Speech::UseCodec,

                                  codecList->at(codec - Speech::UseCodec));

    }

}

void TextToSpeechSystem::readOptions(const QString &langGroup)

{

    KConfigGroup cg(KSharedConfig::openConfig(), langGroup);

    ttsCommand = cg.readPathEntry("Command", QString());

    stdIn = cg.readEntry("StdIn", true);

    useQtSpeech = cg.readEntry("useQtSpeech", true);

    ttsEngine = cg.readEntry("ttsEngine", "speechd");

    // No default, depends on current locale, etc. so just naturally

    // select first voice if none set by user.

    ttsVoice = cg.readEntry("ttsVoice", "");

    QString codecString = cg.readEntry("Codec", "Local");

    if (codecString == QLatin1String("Local"))

        codec = Speech::Local;

    else if (codecString == QLatin1String("Latin1"))

        codec = Speech::Latin1;

    else if (codecString == QLatin1String("Unicode"))

        codec = Speech::Unicode;

    else {

        codec = Speech::Local;

        for (int i = 0; i < codecList->count(); i++)

            if (codecString == QLatin1String(codecList->at(i)->name()))

                codec = Speech::UseCodec + i;

    }

}

void TextToSpeechSystem::saveOptions(const QString &langGroup)

{

    KConfigGroup cg(KSharedConfig::openConfig(), langGroup);

    cg.writePathEntry("Command", ttsCommand);

    cg.writeEntry("StdIn", stdIn);

    cg.writeEntry("useQtSpeech", useQtSpeech);

    cg.writeEntry("ttsEngine", ttsEngine);

    cg.writeEntry("ttsVoice", ttsVoice);

    if (codec == Speech::Local)

        cg.writeEntry("Codec", "Local");

    else if (codec == Speech::Latin1)

        cg.writeEntry("Codec", "Latin1");

    else if (codec == Speech::Unicode)

        cg.writeEntry("Codec", "Unicode");

    else {

        QString codeName = QLatin1String(codecList->at(codec - Speech::UseCodec)->name());

        cg.writeEntry("Codec", codeName);

    }

    delete m_speech;

    m_speech = new QTextToSpeech(ttsEngine);

    const QVector<QVoice> voices = m_speech->availableVoices();

    for (const QVoice &voice: voices) {

        if (voice.name() == ttsVoice) {

            m_speech->setVoice(voice);

        }

    }

}

void TextToSpeechSystem::buildCodecList()

{

    codecList = new QList<QTextCodec*>;

    QList<QByteArray> availableCodecs = QTextCodec::availableCodecs();

    for (int i = 0; i < availableCodecs.count(); ++i) {

        QTextCodec *codec = QTextCodec::codecForName(availableCodecs[i]);

        codecList->append(codec);

    }

}