styles.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
#include <QStyleOption>
#include <QStylePainter>
#include <QWidget>
 
class MyWidget : public QWidget
{
protected:
    void paintEvent(QPaintEvent *event) override;
    void paintEvent2(QPaintEvent *event);
 
};
 
void MyWidget::paintEvent(QPaintEvent * /* event */)
{
    QPainter painter(this);
 
    QStyleOptionFocusRect option;
    option.initFrom(this);
    option.backgroundColor = palette().color(QPalette::Background);
 
    style()->drawPrimitive(QStyle::PE_FrameFocusRect, &option, &painter, this);
}
 
void MyWidget::paintEvent2(QPaintEvent * /* event */)
{
    QStylePainter painter(this);
 
    QStyleOptionFocusRect option;
    option.initFrom(this);
    option.backgroundColor = palette().color(QPalette::Background);
 
    painter.drawPrimitive(QStyle::PE_FrameFocusRect, option);
}
 
int main()
{
    return 0;
}