QT实验报告 - 图文(2)

安庆师范学院计算机与信息学院

Anqing teacher school College of computer and information

classBellEvent:publicQEvent {

public:

BellEvent(constQString&visitor,constQStringList&gifts); QStringm_visitor; QStringListm_gifts;

staticTypeeventType(); protected:

staticTypem_evType; };

classBellThread; classQTimer;

classRinger:publicQObject {

Q_OBJECT public:

Ringer(BellThread*t); publicslots:

voidonTimeout(); private:

BellThread*m_thread; };

classBellThread:publicQThread {

friendclassRinger; public:

BellThread(QObject*receiver);

protected: voidrun();

private:

QPointerm_receiver; };

classMaster:publicQWidget {

Q_OBJECT

public:

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面向对象程序设计：实验报告

安庆师范学院计算机与信息学院

Anqing teacher school College of computer and information

Master(QWidget*parent=0); ~Master(); protected:

boolevent(QEvent*e);

private:

QLabel*m_visitorLabel; QLabel*m_movie; };

#endif//DOORBELL_H

doorbell.cpp

#include\ #include

#include #include #include

#include #include

QEvent::TypeBellEvent::m_evType=QEvent::None; BellEvent::BellEvent(constQString&visitor, constQStringList&gifts)

:QEvent(eventType()),m_visitor(visitor) ,m_gifts(gifts) { }

QEvent::TypeBellEvent::eventType() {

if(m_evType==QEvent::None) {

m_evType=(QEvent::Type)registerEventType(); }

returnm_evType; } //

BellThread::BellThread(QObject*receiver) :m_receiver(receiver) {

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面向对象程序设计：实验报告

安庆师范学院计算机与信息学院

Anqing teacher school College of computer and information

}

voidBellThread::run() {

qDebug()<<\ <

QScopedPointerfirer(newRinger(this)); exec(); }

constchar*g_vistors[5]={ \,\,\, \,\ };

constchar*g_gifts[7]={

\,\,\, \,\,\, \ };

Ringer::Ringer(BellThread*t):m_thread(t) {

QTimer::singleShot(3000,this,SLOT(onTimeout())); }

voidRinger::onTimeout() {

if(m_thread->m_receiver.isNull()) {

m_thread->quit(); return; }

qsrand(QDateTime::currentDateTime().toTime_t()); QStringListgifts;

gifts<m_receiver,ev);

QTimer::singleShot((qrand()%8+2)*1000

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面向对象程序设计：实验报告

安庆师范学院计算机与信息学院

Anqing teacher school College of computer and information

,this,SLOT(onTimeout())); }

Master::Master(QWidget*parent)

:QWidget(parent),m_visitorLabel(newQLabel) ,m_movie(newQLabel) {

BellThread*t=newBellThread(this);

connect(t,SIGNAL(finished()),t,SLOT(deleteLater())); t->start();

QVBoxLayout*layout=newQVBoxLayout; layout->addWidget(m_visitorLabel);

QMovie*gif=newQMovie(\); m_movie->setMovie(gif);

layout->addWidget(m_movie); m_movie->setVisible(false); layout->addStretch(1);

setLayout(layout); }

Master::~Master() { }

boolMaster::event(QEvent*e) {

if(e->type()==BellEvent::eventType()) {

BellEvent*ev=(BellEvent*)e;

QStringstr=QString(\) .arg(ev->m_visitor)

.arg(ev->m_gifts.join(\)); m_visitorLabel->setText(str);

if(ev->m_gifts.contains(\)

||ev->m_gifts.contains(\)) {

m_movie->setVisible(true); m_movie->movie()->start(); } else

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面向对象程序设计：实验报告

安庆师范学院计算机与信息学院

Anqing teacher school College of computer and information

{

m_movie->setVisible(false); m_movie->movie()->stop(); }

returntrue; }

returnQWidget::event(e); }

doorbell.qrc

eye.gif

六、实验结果与分析

七、教师评价

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面向对象程序设计：实验报告