Impossible to setHorizontalHeader bg-color(QTableWidget)

Engelard

I successfully changed so much stuff of my horisontalHeaderItems, but can't change it's colour, no error, program compiles and work but this two attempts have no effect:

ui->tabWidMain->horizontalHeaderItem(0)->setBackgroundColor(grey);

ui->tabWidMain->model()->setHeaderData(0,Qt::Horizontal,QBrush(QColor("red")),Qt::BackgroundRole);

Engelard

If that function not working because of some bug or smth, maybe there is another way to change color of a header?

Engelard

I tried now even change stylesheet of whole TableWidget, and it worked, all table becomes grey. But not vertical and horizontal headers. WTF?

VRonin

This is a Windows-only "feature". The windows style ignores the background. You can test it by calling QApplication::setStyle(QStyleFactory::create("Fusion")); and you'll see the background will work

Engelard

@VRonin said in Impossible to setHorizontalHeader bg-color(QTableWidget):

This is a Windows-only "feature".

Damn it! Spent about 2 hours to figure out what's wrong. iKnew i did nothing wrong!

Fusion is interesting. But i need windows style because it allow imitate thick, continues vertical lines between the columns(since there is no such functionality from Qt):

alt text

That lines between Headers and cells... Not good man, not good.

Engelard

Okey. Is this possible to make desired horizontalHeaderItem invisible or something? Function ->hide(); would be perfect(so then total background will appear and goal is reached).

VRonin

Not tested but you could subclass QHeaderView with something like:

class SkipHeaderView : piblic QHeaderView{
Q_OBJECT
Q_DISABLE_COPY(SkipHeaderView)
public:
SkipHeaderView(Qt::Orientation orientation, QWidget *parent = Q_NULLPTR)
:QHeaderView(orientation,parent ){}
const QVector<int>& sectionsToSkip() const {return m_sectionsToSkip;}
void setSectionsToSkip(const QVector<int>& sections){m_sectionsToSkip=sections; update();}
protected:
void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const Q_DECL_OVERRIDE{
if(!m_sectionsToSkip.contains(logicalIndex))
QHeaderView::paintSection(painter,rect,logicalIndex);
}
private:
QVector<int> m_sectionsToSkip;
};