QT邊框陰影
阿新 • • 發佈:2018-11-10
方法一、過載paintEvent函式
void WebView::paintEvent(QPaintEvent *event) { QPainterPath path; path.setFillRule(Qt::WindingFill); path.addRect(10, 10, this->width()-20, this->height()-20); QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing, true); painter.fillPath(path, QBrush(Qt::white)); QColor color(0, 0, 0, 50); for(int i=0; i<10; i++) { QPainterPath path; path.setFillRule(Qt::WindingFill); path.addRect(10-i, 10-i, this->width()-(10-i)*2, this->height()-(10-i)*2); color.setAlpha(150 - qSqrt(i)*50); painter.setPen(color); painter.drawPath(path); } }
方法二、用圖片去實現陰影邊框
方法三、子控制元件新增陰影
QGraphicsDropShadowEffect *shadow_effect = new QGraphicsDropShadowEffect(this);
shadow_effect->setOffset(-5, 5);
shadow_effect->setColor(Qt::gray);
shadow_effect->setBlurRadius(8);
network_group_box->setGraphicsEffect(shadow_effect);