DAY52

widget.h :

#ifndef WIDGET_H
#define WIDGET_H
 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
 
QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE
 
class Widget : public QWidget
{
    Q_OBJECT
 
 
 
 
public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
 
 
    QLineEdit *edit;
 
 
     void timerEvent(QTimerEvent *e) override;   //定时器事件处理函数
 
 
private slots:
 
     void on_btn1_clicked();
 
     void on_btn2_clicked();
 
private:
    Ui::Widget *ui;
 
    int timer_id;  //定时器的id号
 
    QTextToSpeech *speecher;
};
#endif // WIDGET_H

main.cpp

#include "widget.h"
 
#include 
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

widget.cpp

#include "widget.h"
#include "ui_widget.h"
 
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    speecher = new QTextToSpeech(this);
}
 
Widget::~Widget()
{
    delete ui;
}
 
 
 
//定时器事件处理函数
void Widget::timerEvent(QTimerEvent *e)
{
    //static int num = 1;
    //ui->label->setNum(num++);
    QString t;
    if(e->timerId() == timer_id)    //说明定时器1到位
    {
        QTime sys_t = QTime::currentTime();   //获取系统时间
 
        //将QTime类对象转换成字符串
        t = sys_t.toString("hh:mm:ss");
        ui->lab1->setText(t);
    }
 
    QString s = ui->lineEdit->text();
 
 
    if(s == t)
    {
      speecher->say(ui->textEdit->toPlainText());
    }
    ui->lab1->setText(t);
}
 
 
 
void Widget::on_btn1_clicked()
{
    timer_id = this->startTimer(1000);
 
 
}
 
void Widget::on_btn2_clicked()
{
    this->killTimer(timer_id);    //关闭给定的定时器
}