朱建强之-Qt设置倒角界面

#include "TWidget.h" TWidget::TWidget(QWidget *parent) : QWidget(parent) { m_pEdit = new QLineEdit(this); m_pEdit->setText("123"); // setStyleSheet("TWidget{" // "border-radius: 10px;" // "background: white;" // "}"); } TWidget::~TWidget() { } void TWidget::paintEvent(QPaintEvent *event) { //绘制样式 QStyleOption opt; opt.initFrom(this); QPainter p(this); style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);//绘制样式 QBitmap bmp(this->size()); bmp.fill(); QPainter painter(&bmp); painter.setPen(Qt::NoPen); painter.setBrush(Qt::black); painter.setRenderHint(QPainter::Antialiasing); //设置边框为圆角12px painter.drawRoundedRect(bmp.rect(), 12, 12); setMask(bmp); QWidget::paintEvent(event); }