MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), m_speech(0){ ui.setupUi(this); QLoggingCategory::setFilterRules(QStringLiteral("qt.speech.tts=true \n qt.speech.tts.*=true"));

// Populate engine selection list ui.engine->addItem("Default", QString("default")); foreach (QString engine, QTextToSpeech::availableEngines()) ui.engine->addItem(engine, engine); ui.engine->setCurrentIndex(0); engineSelected(0);

connect(ui.speakButton, &QPushButton::clicked, this, &MainWindow::speak); connect(ui.pitch, &QSlider::valueChanged, this, &MainWindow::setPitch); connect(ui.rate, &QSlider::valueChanged, this, &MainWindow::setRate); connect(ui.volume, &QSlider::valueChanged, this, &MainWindow::setVolume); connect(ui.engine, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::engineSelected);}

void MainWindow::speak(){ m_speech->say(ui.plainTextEdit->toPlainText());}void MainWindow::stop(){ m_speech->stop();}

void MainWindow::setRate(int rate){ m_speech->setRate(rate / 10.0);}

void MainWindow::setPitch(int pitch){ m_speech->setPitch(pitch / 10.0);}

void MainWindow::setVolume(int volume){ m_speech->setVolume(volume / 100.0);}

void MainWindow::stateChanged(QTextToSpeech::State state){ if (state == QTextToSpeech::Speaking) { ui.statusbar->showMessage("Speech started..."); } else if (state == QTextToSpeech::Ready) ui.statusbar->showMessage("Speech stopped...", 2000); else if (state == QTextToSpeech::Paused) ui.statusbar->showMessage("Speech paused..."); else ui.statusbar->showMessage("Speech error!");

ui.pauseButton->setEnabled(state == QTextToSpeech::Speaking); ui.resumeButton->setEnabled(state == QTextToSpeech::Paused); ui.stopButton->setEnabled(state == QTextToSpeech::Speaking || state == QTextToSpeech::Paused);}

void MainWindow::engineSelected(int index){ QString engineName = ui.engine->itemData(index).toString(); delete m_speech; if (engineName == "default") m_speech = new QTextToSpeech(this); else m_speech = new QTextToSpeech(engineName, this); disconnect(ui.language, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::languageSelected); ui.language->clear(); // Populate the languages combobox before connecting its signal. QVector locales = m_speech->availableLocales(); QLocale current = m_speech->locale(); foreach (const QLocale &locale, locales) { QString name(QString("%1 (%2)") .arg(QLocale::languageToString(locale.language())) .arg(QLocale::countryToString(locale.country()))); QVariant localeVariant(locale); ui.language->addItem(name, localeVariant); if (locale.name() == current.name()) current = locale; } setRate(ui.rate->value()); setPitch(ui.pitch->value()); setVolume(ui.volume->value()); connect(ui.stopButton, &QPushButton::clicked, m_speech, &QTextToSpeech::stop); connect(ui.pauseButton, &QPushButton::clicked, m_speech, &QTextToSpeech::pause); connect(ui.resumeButton, &QPushButton::clicked, m_speech, &QTextToSpeech::resume);

connect(m_speech, &QTextToSpeech::stateChanged, this, &MainWindow::stateChanged); connect(m_speech, &QTextToSpeech::localeChanged, this, &MainWindow::localeChanged);

connect(ui.language, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::languageSelected); localeChanged(current);}

void MainWindow::languageSelected(int language){ QLocale locale = ui.language->itemData(language).toLocale(); m_speech->setLocale(locale);}

void MainWindow::voiceSelected(int index){ m_speech->setVoice(m_voices.at(index));}

void MainWindow::localeChanged(const QLocale &locale){ QVariant localeVariant(locale); ui.language->setCurrentIndex(ui.language->findData(localeVariant));

disconnect(ui.voice, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::voiceSelected); ui.voice->clear();

m_voices = m_speech->availableVoices(); QVoice currentVoice = m_speech->voice(); foreach (const QVoice &voice, m_voices) { ui.voice->addItem(QString("%1 - %2 - %3").arg(voice.name()) .arg(QVoice::genderName(voice.gender())) .arg(QVoice::ageName(voice.age()))); if (voice.name() == currentVoice.name()) ui.voice->setCurrentIndex(ui.voice->count() - 1); } connect(ui.voice, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::voiceSelected);}