Qt --实现语音读文字功能

目的：实现语音读文字功能

.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QTextToSpeech>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

public:
    void init();

public slots:
     void speak();
     void stop();

     void setRate(int);
     void setPitch(int);
     void setVolume(int volume);

     void stateChanged(QTextToSpeech::State state);
     void engineSelected(int index);
     void languageSelected(int language);
     void voiceSelected(int index);

     void localeChanged(const QLocale &locale);

private:
    Ui::MainWindow *ui;  
    QTextToSpeech *m_speech;
    QVector<QVoice> m_voices;
};

#endif // MAINWINDOW_H

.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QLoggingCategory>

MainWindow::MainWindow(