基于Qt5的闹钟实现代码.doc

本程序基于QWidget实现，可以动态显示钟表，并且可以添加铃声 头文件widget.h代码如下： #ifndef WIDGET_H #define WIDGET_H #include QWidget #includeQTime #includeQTimer #includeQLabel #includeQPushButton #includeQVBoxLayout #includeQHBoxLayout #includeQTimeEdit #includeQLCDNumber #includeQVariant #includeQAction #includeQMenu #includeQCloseEvent #includeQApplication #includeQMessageBox #includeQSystemTrayIcon namespace Ui { class Widget; } class Widget : public QWidget { Q_OBJECT public: explicit Widget(QWidget *parent = 0); ~Widget(); signals: void isCurrentTime(); private: Ui::Widget *ui; void init(); void layout(); void con(); QLCDNumber *lcdNumber; QLabel *label; QTimeEdit *timeEdit; QPushButton *button; QTimer *timer; QTimer *uptimer; QTimer *dtimer; QTimer *itimer; QRect rect; int x; int y; double du; QSystemTrayIcon *trayIcon; QAction *restoreAct; QAction *quitAct; QMenu *trayIconMenu; private slots: void clockChange(); void dialogUp(); void mini(); void down(); void comToCur(); protected: void closeEvent(QCloseEvent *e); }; #endif // WIDGET_H 源文件widget.cpp代码如下： #include widget.h #include ui_widget.h #includeQtDebug #includeQApplication #includeQDesktopWidget Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui-setupUi(this); init(); layout(); con(); void Widget::init() { setWindowTitle(我的闹钟); setFixedSize(300,80); timer=new QTimer; uptimer=new QTimer; dtimer=new QTimer; itimer=new QTimer; lcdNumber=new QLCDNumber; lcdNumber-setFixedSize(150,50); lcdNumber-setDigitCount(12); lcdNumber-setSegmentStyle(QLCDNumber::Flat); lcdNumber-display(QTime::currentTime().toString(hh:mm:ss:zzz)); label=new QLabel(闹钟); timeEdit=new QTimeEdit; timeEdit-setDisplayFormat(hh:mm:ss); button=new QPushButton(确定); trayIcon=new QSystemTrayIcon; trayIcon-setIcon(QIcon(:/new/prefix1/clock.i