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8.20Qt作业

news 2025/11/30 5:07:53

运用定时器事件实现闹钟项目

主要代码：

#include "widget.h"
#include "ui_widget.h"Widget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget), spk(new QTextToSpeech(this))
{ui->setupUi(this);this->setWindowFlag(Qt::FramelessWindowHint);this->setAttribute(Qt::WA_TranslucentBackground);timer1 =new QTimer(this);connect(timer1,&QTimer::timeout,this,&Widget::timeout_slot);timer1->start(1000);tex="起床了，太阳晒屁股了\n";}Widget::~Widget()
{delete ui;
}void Widget::on_pushButton_2_clicked()
{qDebug() << "程序已退出";this->close();
}void Widget::on_pushButton_clicked()
{if(ui->pushButton->text()=="启动"){int msec;QTime cur_time=QTime::currentTime();QTime set_time=ui->timeEdit->time();ui->label_4->setText("倒计时！！！");if(cur_time<set_time){msec=cur_time.msecsTo(set_time);}else{msec=cur_time.msecsTo(set_time)+24*3600*1000;}id=startTimer(msec);ui->pushButton->setText("关闭");}else{//ui->label_4->clear();b=0;a=0;tex="起床了，太阳晒屁股了\n";ui->label_4->setText("闹钟！！！");killTimer(id);ui->pushButton->setText("启动");}
}
void Widget::timerEvent(QTimerEvent *e)
{if(e->timerId()==id){ui->label_4->setText(tex);spk->say(ui->label_4->text());killTimer(id);b=1;}
}
void Widget::timeout_slot()
{QTime s_time=QTime::currentTime();QString t = s_time.toString("hh : mm : ss");ui->label->setText(t);ui->label->setAlignment(Qt::AlignCenter);if(b==1){if(a<21){   a++;if(a%5==0){tex+="起床了，太阳晒屁股了\n";ui->label_4->setText(tex);spk->say("起床了，太阳晒屁股了\n");}}}
}
void Widget::mouseMoveEvent(QMouseEvent *event)
{if(event->buttons()==Qt::LeftButton){this->move(event->globalPos()-p);}
}
void Widget::mousePressEvent(QMouseEvent *event)
{p=event->pos();
}

实现效果