QT day4

1> 实现闹钟功能

头文件

#ifndef WIDGET_H
#define WIDGET_H
 
#include 
#include 
#include 
#include 
#include 
#include  //定时器事件类
#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();
 
    void timerEvent(QTimerEvent *event)override;
 
private slots:
    void fixed_time_clicked();
    void cancel_clicked();
 
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
 
private:
    Ui::Widget *ui;
 
    QLabel *back;             //背景
    QLabel *TIME;             //实时显示时间
    QPushButton *fixed_time;  //定时按钮
    QPushButton *cancel;      //取消按钮
    QLineEdit *clock;         //设置闹钟
    QTextEdit *text;          //设置播报的闹钟内容
    int timer_id;
    int timer_clock;
    QTextToSpeech *speecher;  //播报员
    QPoint drap;
};
#endif // WIDGET_H

源文件

#include "widget.h"
#include "ui_widget.h"
 
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
 
    //窗口设置
    this->setFixedSize(600,300);
    this->setWindowTitle("Bloodborne alarm clock");
    this->setWindowIcon(QIcon(":/pricte/641193.jpg"));
    this->setWindowFlag(Qt::FramelessWindowHint); //纯净窗口
 
    //设置背景
    back = new QLabel(this);
    back->resize(this->size());
    back->setPixmap(QPixmap(":/pricte/R-C.jpg"));
    back->setScaledContents(true);
 
    //设置时间显示
    TIME = new QLabel(this);
    TIME->resize(350,40);
    QFont font("黑体",30,100);
    TIME->setStyleSheet("font-size:35px;"
                        "color:white;");
    TIME->move(30,30);
    timer_id = this->startTimer(1000);
 
    //设置闹钟
    clock = new QLineEdit(this);
    clock->resize(120,30);
    clock->move(TIME->x()+430,TIME->y());
    clock->setPlaceholderText("设置闹钟");
    clock->setStyleSheet("background:rgb(0,0,0,0);"
                         "color:white;");
 
 
    //定时按钮
    fixed_time = new QPushButton("定时",this);
    fixed_time->move(clock->x(),clock->y()+40);
    fixed_time->resize(clock->width()/2-5,25);
    fixed_time->setStyleSheet("background:rgb(102,255,255,80);"
                         "color:white;");
    connect(fixed_time, &QPushButton::clicked, this, &Widget::fixed_time_clicked);
 
    //取消按钮
    cancel = new QPushButton("取消",this);
    cancel->move(clock->x()+fixed_time->width()+10,clock->y()+40);
    cancel->resize(clock->width()/2-5,25);
    cancel->setStyleSheet("background:rgb(102,255,255,80);"
                         "color:white;");
    connect(cancel, &QPushButton::clicked, this, &Widget::cancel_clicked);
    cancel->setEnabled(false);
 
 
    //设置播报的闹钟内容
    text = new QTextEdit(this);
    text->resize(320,80);
    text->move(30,100);
    text->setStyleSheet("background:rgb(0,0,0,0);color:"
                        "white;");
    text->setPlaceholderText("设置播报的闹钟内容");
    text->setFont(QFont("宋体",15));//设置字体和字体大小
 
    speecher = new QTextToSpeech(this);
}
 
Widget::~Widget()
{
    delete ui;
}
 
//时间显示   时间比较
void Widget::timerEvent(QTimerEvent *event)
{
    QDateTime sys_dt = QDateTime::currentDateTime();
 
    if(event->timerId() == timer_id)
    {
        TIME->setText(sys_dt.toString("yyyy-MM-dd hh:mm:ss"));
    }
    if(event->timerId() == timer_clock)
    {
        QString a = clock->text();
 
        QString t = sys_dt.toString("hh:mm:ss");
 
        QString b = text->toPlainText();
        if(a == t)
        {
            speecher->say(b);
        }
    }
}
 
//定时按钮槽函数
void Widget::fixed_time_clicked()
{
 
    timer_clock = this->startTimer(1000);
 
    fixed_time->setEnabled(false);
    text->setEnabled(false);
    clock->setEnabled(false);
    cancel->setEnabled(true);
}
 
//取消按钮槽函数
void Widget::cancel_clicked()
{
    this->killTimer(timer_clock);
 
    fixed_time->setEnabled(true);
    text->setEnabled(true);
    clock->setEnabled(true);
    cancel->setEnabled(false);
 
    clock->clear();
}
 
//鼠标按下事件处理函数
void Widget::mousePressEvent(QMouseEvent *event)
{
    drap = event->globalPos()-this->pos();
 
    if(event->button() == Qt::RightButton)
    {
        this->close();
    }
}
 
//鼠标移动事件处理函数
void Widget::mouseMoveEvent(QMouseEvent *event)
{
    this->move(event->globalPos() - drap);
}

实现：

思维导图：