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divwindow.cpp
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divwindow.cpp
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#include "divwindow.h"
DivWindow::DivWindow(QWidget *parent) : QMainWindow(parent)
{
rank=1;
flag=1;
this->setWindowFlags(Qt::FramelessWindowHint);
this->setFixedSize(600,400);
QPushButton *pbt_close=new QPushButton;
pbt_close->setFixedSize(41,41);
pbt_close->setIcon(QIcon(":/material/close.png"));
pbt_close->setParent(this);
pbt_close->move(559,0);
pbt_close->setIconSize(QSize(40,40));
pbt_close->setFlat(true);
pbt_close->setToolTip("关闭");
pbt_close->setCursor(QCursor(Qt::PointingHandCursor));
connect(pbt_close,&QPushButton::clicked,this,&QWidget::close);
QPushButton *pbt_back=new QPushButton;
pbt_back->setFixedSize(41,41);
pbt_back->setIcon(QIcon(":/material/back.ico"));
pbt_back->setParent(this);
pbt_back->move(559,359);
pbt_back->setIconSize(QSize(40,40));
pbt_back->setFlat(true);
pbt_back->setToolTip("返回");
pbt_back->setCursor(QCursor(Qt::PointingHandCursor));
connect(pbt_back,&QPushButton::clicked,[=](){
emit this->back();
});
getRandomNumber();
QString labeltext;
labeltext="题目:"+QString::number(number1,10)+"➗"+QString::number(number2,10)+"=";
timu=new QLabel(labeltext,this);
timu->setFixedSize(200,50);
timu->setStyleSheet("font-size:25px;color: black;background:transparent;border:4px solid white;aliqnment: AliqnHCenter");
timu->move(200,30);
timu->installEventFilter(this);
QString information;
information="难度等级:"+QString::number(rank,10)+"累计回答正确题目个数"+QString::number(flag-1,10);
tishi=new QLabel(information,this);
tishi->setFixedSize(350,40);
tishi->move(125,85);
tishi->installEventFilter(this);
tishi->setStyleSheet("font-size:20px;color: black;background:transparent;border:4px solid white;aliqnment: AliqnHCenter");
daan=new QTextEdit("请输入答案,按回车确定",this);
daan->setStyleSheet("background:rgb(255,0,0,0);border:4px solid white;font-size:17px");
daan->setGeometry(200,320,200,40);
daan->installEventFilter(this);
}
void DivWindow::paintEvent(QPaintEvent *)
{
QPixmap back_icon;
back_icon.load(":/material/lianxi.jpg");
QPixmap fitpixmap=back_icon.scaled(this->width(),this->height(),Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QPainter painter(this);
QPixmap pix=QPixmap(fitpixmap);
painter.drawPixmap(0,0,pix);
}
void DivWindow::mouseMoveEvent(QMouseEvent *event)
{
QPoint EndPos;
if(event->buttons()==Qt::LeftButton)
{
EndPos=event->globalPos()-StarPos;
this->move(EndPos);
}
}
void DivWindow::mousePressEvent(QMouseEvent *event)
{
if(event->buttons()==Qt::LeftButton)
{
StarPos=event->globalPos()-this->frameGeometry().topLeft();
}
}
bool DivWindow::eventFilter(QObject *target,QEvent *event)
{
if(target == this->daan)
{
if(event->type()==QEvent::KeyPress)
{
QKeyEvent *k=static_cast<QKeyEvent *>(event);
if(k->key()==Qt::Key_Return||k->key()==Qt::Key_Enter)
{
QString tempdaan=daan->toPlainText();
daan->clear();
answer=tempdaan.toUInt();
if(qAbs(answer-(double)number1/number2)<=0.1)
{
flag++;
QMessageBox::information(this,"答案反馈","回答正确");
getRandomNumber();
QString labeltext;
labeltext="题目:"+QString::number(number1,10)+"➗"+QString::number(number2,10)+"=";
timu->setText(labeltext);
}
else
{
QString labeltext;
labeltext="回答错误,正确答案为"+QString::number((double)number1/number2,10,2);
QMessageBox::information(this,"答案反馈",labeltext);
getRandomNumber();
labeltext="题目:"+QString::number(number1,10)+"➗"+QString::number(number2,10)+"=";
timu->setText(labeltext);
}
if(flag==11&&rank<3)
{
QMessageBox::information(this,"提示","难度升级");
rank++;
flag=1;
}
QString information;
information="难度等级:"+QString::number(rank,10)+" 累计回答正确题目个数:"+QString::number(flag-1,10);
tishi->setText(information);
}
}
}
return QWidget::eventFilter(target,event);
}
void DivWindow::getRandomNumber()
{
QTime time=QTime::currentTime();
qsrand(time.msec()+time.second()*5000);
if(rank==1)
number2=qrand()%9+1;
else if(rank==2)
number2=qrand()%99+1;
else
number2=qrand()%999+1;
qsrand(time.msec()+time.second()*1000);
if(rank==1)
number1=(qrand()%9)*number2;
else if(rank==2)
number1=(qrand()%99)*number2;
else
number1=(qrand()%999)*number2;
}
void DivWindow::levelup()
{
rank++;
}