How to customize the QScrollBar "corner" area?

Daniella

In CSS this area (6) can be style with -webkit-scrollbar-corner

The area where the horizontal and vertical scrollbars match:

I could not find a mention to this area in the documentation neither in the customizing qscrollbar example.

How i could customize this same area in a QScrollBar? using stylesheet or proxy style, etc, anything help.

Pl45m4

@Daniella said in How to customize the QScrollBar "corner" area?:

How i could customize this same area in a QScrollBar?

This is actually part of QAbstractScrollArea (the background area on which the scrollBars are)

You can customize it with

// w = your widget which provides the scrollBars
w->setStyleSheet("QAbstractScrollArea::corner { background: black;}");

Daniella

@Pl45m4 said in How to customize the QScrollBar "corner" area?:

@Daniella said in How to customize the QScrollBar "corner" area?:

How i could customize this same area in a QScrollBar?

This is actually part of QAbstractScrollArea (the background area on which the scrollBars are)

You can customize it with
// w = your widget which provides the scrollBars
w->setStyleSheet("QAbstractScrollArea::corner { background: black;}");

I have tried "hide" it setting QAbstractScrollArea::corner { width: 0px; height: 0px;} also max-height: 0;
but its space continue there.

I think the corner area can be edited by handling the subElementRect or maybe subControlRect, i found this: PE_PanelScrollAreaCorner

I tried setting a proxy style into the treeview, its viewport and its scrollbar but none of them is calling these elements.

class ProxyStyle : public QProxyStyle
{
public:
    ProxyStyle(QStyle *style = nullptr) : QProxyStyle(style){}

    QRect subElementRect(QStyle::SubElement element, const QStyleOption* option, const QWidget* widget = nullptr) const override
    {
        qDebug() << "#e:" << element;
        qDebug() << QProxyStyle::subElementRect(element, option, widget);
	return QProxyStyle::subElementRect(element, option, widget);
    }


    void drawPrimitive(QStyle::PrimitiveElement element, const QStyleOption* option, QPainter* painter, const QWidget* widget = nullptr) const override
    {
        qDebug() << "pe:" << element;
        return QProxyStyle::drawPrimitive(element, option, painter, widget);
    }
};


    QTreeView* treeView = new QTreeView(this);
    treeView->viewport()->setStyle(new ProxyStyle(treeView->viewport()->style()));
    treeView->setStyle(new ProxyStyle(treeView->style()));