27 lines
648 B
C++
27 lines
648 B
C++
#include "maskLayer.h"
|
||
#include <QPainter>
|
||
#include <QStyleOption>
|
||
|
||
MaskLayer::MaskLayer(QWidget *parent)
|
||
: QWidget(parent)
|
||
{
|
||
setObjectName("maskLayer");
|
||
setFocusPolicy(Qt::NoFocus);
|
||
setAttribute(Qt::WA_TranslucentBackground); // 启用透明背景
|
||
setStyleSheet("background:rgba(112,128,144,180);");
|
||
hide();
|
||
}
|
||
|
||
MaskLayer::~MaskLayer()
|
||
{}
|
||
|
||
//重写paintEvent触发背景绘制，否则实例化对象不显示
|
||
void MaskLayer::paintEvent(QPaintEvent *event)
|
||
{
|
||
QStyleOption opt;
|
||
opt.initFrom(this);
|
||
QPainter p(this);
|
||
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
|
||
QWidget::paintEvent(event);
|
||
}
|