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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include <QLoggingCategory>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent),
m_speech(nullptr)
{
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"));
const auto engines = QTextToSpeech::availableEngines();
for (const QString &engine : engines)
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, &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, &QComboBox::currentIndexChanged, this, &MainWindow::languageSelected);
ui.language->clear();
// Populate the languages combobox before connecting its signal.
const QList<QLocale> locales = m_speech->availableLocales();
QLocale current = m_speech->locale();
for (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, [this]{ m_speech->stop(); });
connect(ui.pauseButton, &QPushButton::clicked, m_speech, [this]{ m_speech->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, &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, &QComboBox::currentIndexChanged, this, &MainWindow::voiceSelected);
ui.voice->clear();
m_voices = m_speech->availableVoices();
QVoice currentVoice = m_speech->voice();
for (const QVoice &voice : std::as_const(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, &QComboBox::currentIndexChanged, this, &MainWindow::voiceSelected);
}
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