QT实现简单备忘录

头文件

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QTimerEvent>
#include <QTime>
#include <QDebug>
#include <QString>
#include <QTextToSpeech>

QT_BEGIN_NAMESPACE
namespace Ui {
    
     class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    
    
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

    //定时器事件函数重写
    void timerEvent(QTimerEvent *e) override;

//槽函数定义
private slots:
    void on_Start_clicked();
    void on_Stop_clicked();


private:
    Ui::Widget *ui;

    //定义两个定时器
    int timer_id1;
    int timer_id2;

    //语言播报对象
    QTextToSpeech* speecher;

    //自定义信号
signals:
    void speek();
};
#endif // WIDGET_H

函数实现

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    
    
    ui->setupUi(this);

    speecher = new QTextToSpeech(this);

    //连接语言播报的信号和槽函数
    connect(this, &Widget::speek, [&](){
    
    
        speecher->say(ui->textEdit->toPlainText());
    });
}

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

void Widget::timerEvent(QTimerEvent *e)
{
    
    
    if( e->timerId() == timer_id1 )
    {
    
    
        //获取系统实时时间
        QDate sys_d = QDate::currentDate();
        QTime sys_t = QTime::currentTime();
        QString t = sys_t.toString("hh:mm:ss");
        QString d = sys_d.toString("yyyy-MM-dd");


        //展示到ui界面
        ui->Time->setText(d);
        ui->Date->setText(t);
    }

    //设置备忘录提醒时间
    if( e->timerId() == timer_id2 )
    {
    
    
        QTime clock_t = QTime::currentTime();
        ui->Hour->setPlaceholderText("时");
        ui->Min->setPlaceholderText("分");
        ui->Sec->setPlaceholderText("秒");

        QString hour = clock_t.toString("hh");
        QString min = clock_t.toString("mm");
        QString sec = clock_t.toString("ss");

        if(hour == ui->Hour->text() && min == ui->Min->text() && sec == ui->Sec->text())
        {
    
    
            emit speek();
        }
    }
}



void Widget::on_Start_clicked()
{
    
    
    //启动两个定时器，每隔1000ms自动调用定时器事件处理函数
    timer_id1 = this->startTimer(1000);
    timer_id2 = this->startTimer(1000);
}

void Widget::on_Stop_clicked()
{
    
    
    this->killTimer(timer_id2); //关闭给定的定时器
}