Customize drop indicator in QTreeView

[novakk]

Hello,

I am trying to customise the drop indicator in QTreeView with no success. I've browsed the web, but found no info.
Can anyone guide me where to start?

novakk

[hwerglmir]

Hi

look at QProxyStyle.

Here's an example I've made for the DropIndicator.

class MyProxyStyle : public QProxyStyle
{
public:
    void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const
    {
        if(element == QStyle::PE_IndicatorItemViewItemDrop)
        {
            painter->setRenderHint(QPainter::Antialiasing, true);
 
            QPalette palette;
            //QColor(90,108,217)
            QColor c(palette.highlightedText().color());
            QPen pen(c);
            pen.setWidth(2);
            c.setAlpha(50);
            QBrush brush(c);
 
            painter->setPen(pen);
            painter->setBrush(brush);
            if(option->rect.height() == 0)
            {
                painter->drawEllipse(option->rect.topLeft(), 3, 3);
                painter->drawLine(QPoint(option->rect.topLeft().x()+3, option->rect.topLeft().y()), option->rect.topRight());
            } else {
                painter->drawRoundedRect(option->rect, 5, 5);
            }
        } else {
            QProxyStyle::drawPrimitive(element, option, painter, widget);
        }
 
 
    }
};

class MyProxyStyle : public QProxyStyle
{
public:
    void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const
    {
        if(element == QStyle::PE_IndicatorItemViewItemDrop)
        {
            painter->setRenderHint(QPainter::Antialiasing, true);

            QPalette palette;
            //QColor(90,108,217)
            QColor c(palette.highlightedText().color());
            QPen pen(c);
            pen.setWidth(2);
            c.setAlpha(50);
            QBrush brush(c);

            painter->setPen(pen);
            painter->setBrush(brush);
            if(option->rect.height() == 0)
            {
                painter->drawEllipse(option->rect.topLeft(), 3, 3);
                painter->drawLine(QPoint(option->rect.topLeft().x()+3, option->rect.topLeft().y()), option->rect.topRight());
            } else {
                painter->drawRoundedRect(option->rect, 5, 5);
            }
        } else {
            QProxyStyle::drawPrimitive(element, option, painter, widget);
        }


    }
};

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[novakk]

Thank you for your help!