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50
51
52
53#include "mainwindow.h"
54#include <QLoggingCategory>
55
56MainWindow::MainWindow(QWidget *parent)
57 : QMainWindow(parent),
58 m_speech(nullptr)
59{
60 ui.setupUi(this);
61 QLoggingCategory::setFilterRules(QStringLiteral("qt.speech.tts=true \n qt.speech.tts.*=true"));
62
63 // Populate engine selection list
64 ui.engine->addItem(atext: "Default", auserData: QString("default"));
65 const auto engines = QTextToSpeech::availableEngines();
66 for (const QString &engine : engines)
67 ui.engine->addItem(atext: engine, auserData: engine);
68 ui.engine->setCurrentIndex(0);
69 engineSelected(index: 0);
70
71 connect(sender: ui.speakButton, signal: &QPushButton::clicked, receiver: this, slot: &MainWindow::speak);
72 connect(sender: ui.pitch, signal: &QSlider::valueChanged, receiver: this, slot: &MainWindow::setPitch);
73 connect(sender: ui.rate, signal: &QSlider::valueChanged, receiver: this, slot: &MainWindow::setRate);
74 connect(sender: ui.volume, signal: &QSlider::valueChanged, receiver: this, slot: &MainWindow::setVolume);
75 connect(sender: ui.engine, signal: static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), receiver: this, slot: &MainWindow::engineSelected);
76}
77
78void MainWindow::speak()
79{
80 m_speech->say(text: ui.plainTextEdit->toPlainText());
81}
82void MainWindow::stop()
83{
84 m_speech->stop();
85}
86
87void MainWindow::setRate(int rate)
88{
89 m_speech->setRate(rate / 10.0);
90}
91
92void MainWindow::setPitch(int pitch)
93{
94 m_speech->setPitch(pitch / 10.0);
95}
96
97void MainWindow::setVolume(int volume)
98{
99 m_speech->setVolume(volume / 100.0);
100}
101
102void MainWindow::stateChanged(QTextToSpeech::State state)
103{
104 if (state == QTextToSpeech::Speaking) {
105 ui.statusbar->showMessage(text: "Speech started...");
106 } else if (state == QTextToSpeech::Ready) {
107 ui.statusbar->showMessage(text: "Speech stopped...", timeout: 2000);
108 if (!m_localesQueried)
109 queryLocales();
110 }
111 else if (state == QTextToSpeech::Paused)
112 ui.statusbar->showMessage(text: "Speech paused...");
113 else
114 ui.statusbar->showMessage(text: "Speech error!");
115
116 ui.pauseButton->setEnabled(state == QTextToSpeech::Speaking);
117 ui.resumeButton->setEnabled(state == QTextToSpeech::Paused);
118 ui.stopButton->setEnabled(state == QTextToSpeech::Speaking || state == QTextToSpeech::Paused);
119}
120
121void MainWindow::engineSelected(int index)
122{
123 m_localesQueried = false;
124 QString engineName = ui.engine->itemData(index).toString();
125 delete m_speech;
126 if (engineName == "default")
127 m_speech = new QTextToSpeech(this);
128 else
129 m_speech = new QTextToSpeech(engineName, this);
130
131 connect(sender: m_speech, signal: &QTextToSpeech::stateChanged, receiver: this, slot: &MainWindow::stateChanged);
132}
133
134void MainWindow::queryLocales()
135{
136 disconnect(sender: ui.language, signal: static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), receiver: this, slot: &MainWindow::languageSelected);
137 ui.language->clear();
138 // Populate the languages combobox before connecting its signal.
139 const QVector<QLocale> locales = m_speech->availableLocales();
140 QLocale current = m_speech->locale();
141 for (const QLocale &locale : locales) {
142 QString name(QString("%1 (%2)")
143 .arg(a: QLocale::languageToString(language: locale.language()))
144 .arg(a: QLocale::countryToString(country: locale.country())));
145 QVariant localeVariant(locale);
146 ui.language->addItem(atext: name, auserData: localeVariant);
147 if (locale.name() == current.name())
148 current = locale;
149 }
150 setRate(ui.rate->value());
151 setPitch(ui.pitch->value());
152 setVolume(ui.volume->value());
153 connect(sender: ui.stopButton, signal: &QPushButton::clicked, receiver: m_speech, slot: &QTextToSpeech::stop);
154 connect(sender: ui.pauseButton, signal: &QPushButton::clicked, receiver: m_speech, slot: &QTextToSpeech::pause);
155 connect(sender: ui.resumeButton, signal: &QPushButton::clicked, receiver: m_speech, slot: &QTextToSpeech::resume);
156
157 connect(sender: m_speech, signal: &QTextToSpeech::localeChanged, receiver: this, slot: &MainWindow::localeChanged);
158
159 connect(sender: ui.language, signal: static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), receiver: this, slot: &MainWindow::languageSelected);
160 localeChanged(locale: current);
161 m_localesQueried = true;
162}
163
164void MainWindow::languageSelected(int language)
165{
166 QLocale locale = ui.language->itemData(index: language).toLocale();
167 m_speech->setLocale(locale);
168}
169
170void MainWindow::voiceSelected(int index)
171{
172 m_speech->setVoice(m_voices.at(i: index));
173}
174
175void MainWindow::localeChanged(const QLocale &locale)
176{
177 QVariant localeVariant(locale);
178 ui.language->setCurrentIndex(ui.language->findData(data: localeVariant));
179
180 disconnect(sender: ui.voice, signal: static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), receiver: this, slot: &MainWindow::voiceSelected);
181 ui.voice->clear();
182
183 m_voices = m_speech->availableVoices();
184 QVoice currentVoice = m_speech->voice();
185 for (const QVoice &voice : qAsConst(t&: m_voices)) {
186 ui.voice->addItem(atext: QString("%1 - %2 - %3").arg(a: voice.name())
187 .arg(a: QVoice::genderName(gender: voice.gender()))
188 .arg(a: QVoice::ageName(age: voice.age())));
189 if (voice.name() == currentVoice.name())
190 ui.voice->setCurrentIndex(ui.voice->count() - 1);
191 }
192 connect(sender: ui.voice, signal: static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), receiver: this, slot: &MainWindow::voiceSelected);
193}
194

source code of qtspeech/examples/speech/hello_speak/mainwindow.cpp