QTday04(事件)

news2024/11/7 7:50:58

今日任务

代码：

头文件：

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QTimerEvent>
#include <QTime>
#include <QTimer>
#include <QMessageBox>
#include <QTextToSpeech>
#include <QDebug>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
    //重写时间处理函数
    void timerEvent(QTimerEvent *e)override;
public slots:
    void my_time_slot();
    void myclock_slot();
private slots:
    void on_startButton_clicked();

    void on_stopButton_clicked();

private:
    Ui::Widget *ui;
    QTimer *myclock;
    QTextToSpeech *speecher;
    int flag=0;//闹钟默认为关闭0,开启为1

};
#endif // WIDGET_H

widget.cpp

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    QTimer *time=new QTimer(this);//系统时间
    connect(time,&QTimer::timeout,this,&Widget::my_time_slot);
    time->start(1000);


}
Widget::~Widget()
{
    delete ui;
}

void Widget::timerEvent(QTimerEvent *e){

}
void Widget::my_time_slot(){
    //如果是指定的tid,就执行对应的指令
    QTime time=QTime::currentTime();

    ui->sysTimeLabel->setText(time.toString());
    ui->sysTimeLabel->setAlignment(Qt::AlignCenter);
    //QLCDNumber控件用于显示一个LCD数字。
    ui->sysTimeNumber->setDecMode();//十进制显示
    ui->sysTimeNumber->setDigitCount(8);//可以显示的位数
    ui->sysTimeNumber->display(time.toString());
}

void Widget::myclock_slot()
{
    if(ui->lineEdit->text()==ui->sysTimeLabel->text())
        flag=1;
    if(flag){
        //时间到
        speecher=new QTextToSpeech(this);
        ui->incidentLabel->setText("时间到了，上路了~");
        speecher->say("时间到了，上路了~");
    }
    qDebug() << "flag=" << flag;
}

void Widget::on_startButton_clicked()
{
    if(ui->lineEdit->text().isEmpty()){
        QMessageBox::information(this,"提示","时间不能为空",QMessageBox::Ok);
        return;
    }
    if(ui->lineEdit->text()< ui->sysTimeLabel->text()){
        QMessageBox::information(this,"提示","闹钟时间要大于系统时间",QMessageBox::Ok);
        return;
    }
    //启动计时器
    myclock=new QTimer(this);//闹钟时间
    connect(myclock,&QTimer::timeout,this,&Widget::myclock_slot);
    myclock->start(1000);
    QMessageBox::information(this,"提示","闹钟开始",QMessageBox::Ok);
    ui->incidentLabel->setText("闹钟启动ing");

}

void Widget::on_stopButton_clicked()
{

    flag=0;
    speecher->stop();
    qDebug() << "speech stop";
    myclock->stop();
    QMessageBox::information(this,"提示","闹钟停止",QMessageBox::Ok);
    ui->incidentLabel->setText("闹钟停止ing");
}