93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
#include "ExDateTime.h"
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#include "ui_ExDateTime.h"
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#include <QDateTime>
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ExDateTime::ExDateTime(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::ExDateTime)
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{
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ui->setupUi(this);
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setWindowTitle(QObject::tr("时间日期(QTime/QDate/QDateTime)和定时器(QTimer)"));
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//editDate控件在UI设计师里面，选中了calendarPopup （日历弹出的属性）和displayFormat显示格式
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m_timer = new QTimer(this);
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m_timer->stop(); //关闭定时器
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m_timer->setInterval(1000); //设定定时周期， 单位 毫秒
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connect(m_timer, SIGNAL(timeout()), this, SLOT(onTimerOut()));
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}
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ExDateTime::~ExDateTime()
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{
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delete ui;
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//获取当前日期和时间，该日期时间栏里面显示
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void ExDateTime::on_btnGetDateTime_clicked()
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{
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QDateTime currDateTime = QDateTime::currentDateTime();
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ui->timeEdit->setTime(currDateTime.time());
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ui->editTime->setText(currDateTime.toString("hh:mm:ss:zzz"));
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ui->dateEdit->setDate(currDateTime.date());
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ui->editDate->setText(currDateTime.toString("yyyy-MM-dd"));
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ui->dateTimeEdit->setDateTime(currDateTime);
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ui->editDateTime->setText(currDateTime.toString("yyyy-MM-dd hh:mm:ss:zzz"));
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ui->labCurrDataTime->setText(currDateTime.toString("yyyy-MM-dd hh:mm:ss:zzz"));
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//计时器开始
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void ExDateTime::on_btnStatrt_clicked()
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{
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m_time.start(); //计时器开始
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m_timer->start(); //定时器开始
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ui->btnStatrt->setEnabled(false); //开始按下之后，开始按钮禁用
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ui->btnStop->setEnabled(true); //同时结束按钮可用
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ui->btnPeriod->setEnabled(false); //设定周期的按钮为禁用
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ui->labGo->setText(QString("时间流逝在后台计算中..."));
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}
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//计时器结束
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void ExDateTime::on_btnStop_clicked()
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{
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m_timer->stop(); //定时器停止
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ui->btnStop->setEnabled(false); //结束按下之后，结束按钮禁用
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ui->btnStatrt->setEnabled(true); //同时开始按钮可用
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int tmMsec = m_time.elapsed(); //计时器Time没有对应的stop(), elapsed获取它的毫秒数
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int ms = tmMsec % 1000; //经过的毫秒
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int sec = tmMsec / 1000; //经过的秒
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ui->btnPeriod->setEnabled(true); //设定周期的按钮为可用
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ui->labGo->setText(QString("时间已经流逝：%1 秒 %2 毫秒").arg(sec).arg(ms));
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}
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//处理定时器的槽函数
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void ExDateTime::onTimerOut()
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{
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QTime currTime = QTime::currentTime();
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ui->lcdHH->display(currTime.hour()); //多种显示时间方法
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ui->lcdmm->display(currTime.toString("mm"));
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ui->lcdSS->display(currTime.toString("ss"));
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int val = ui->progressBar->value(); //设置进度条同时增加
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val++;
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if (val > 100)
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val = 0;
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ui->progressBar->setValue(val);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//选择日历时间
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void ExDateTime::on_calendarWidget_selectionChanged()
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{
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QDate date =ui->calendarWidget->selectedDate();
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ui->editChoose->setText(date.toString("yyyy年MM月dd日"));
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}
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//设定定时器QTimer周期
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void ExDateTime::on_btnPeriod_clicked()
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{
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m_timer->setInterval(ui->spinBox->value());
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}
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