例子没传上来,主要就是下边的代码
Widget::Widget(QWidget *parent)
{
elapsed = 0;
setFixedSize(500, 500);
m_pTimer = new QTimer(this);
connect(m_pTimer, SIGNAL(timeout()), this, SLOT(update()));
m_pTimer->start(2000);
}
void Widget::paintEvent(QPaintEvent *event)
{
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
QString str[10]={"宋体","黑体","幼圆","仿宋","Arial","隶书","华文行楷","华文彩云","华文中宋","Times new roman"};
int sz[10]={10,16,20,24,30,36,40,46,52,60};
QString tx[10]={"中国人民共和国","dgdgdgd","dcs尿素","test","狗蛋","顽皮","wwwww","rwqrer","测试测试","随机测试"};
int i=0;
for (;i<20;++i)
{
QFont font(str[rand()%10]);
font.setPixelSize(sz[rand()%10]);
painter.setFont(font);
painter.drawText(rand()%500,rand()%500,tx[i%10]);
}
painter.end();
}