QTabBar : how see only a widget with the name of a tab ?

[koahnig]

@bozo6919

Do you mean only the tab (as it says Empty) and possibly other tabs, when added.
But the greyish part with the triangle on the right should disappear?

[bozo6919]

@koahnig

Yes, just the square blue. not the greyish part with the triangle and the content of this tab, only the square blue

[bozo6919]

Nobody ?

[deleted372]

I think you should take a look at Stylesheets:
http://doc.qt.io/qt-5/stylesheet-examples.html#customizing-qtabwidget-and-qtabbar

[bozo6919]

It's not what I want
I want to display only the square blue in the picture

[koahnig]

@bozo6919

I am wondering if there is a misunderstanding.

The QTabBar suggest that you are looking ultimately for a row of distinguished blue rectancles with labels "Empty", "Tab1", "Tab2" and so on.

If you want to limit to one tab as in your example, you might on a entirely wrong route.

Perhaps something like QLabel would fit better?

[bozo6919]

@koahnig
no, I'm going to explain what I want :
First, I have a QMainWindow and inside it, QTabWidget with a QTabbedBar.
I have an event with QTabbedBar :
When the user clicked on the tab (the square blue), I want to create a ghost of this tab (only the square blue).
This ghost has (after) to follow the mouse of the user. (This part of the code worked already)
Do you understand?

[koahnig]

@bozo6919

You like to place the ghost anywhere on the screen?

[bozo6919]

@koahnig
The ghost has to follow the cursor, and when I release the mouse, my widget moves at the same place as the ghost and the ghost is destroyed.

[koahnig]

@bozo6919

If your QTabBar has ultimately only one tab to create the ghost, which you are freely moving somewhere as I understand your application now, then the QTabBar is not the right approach.

Why not using a QPushButton to create the ghost?

The push button could be changed in style to your likings. It will have not the greyish appendix, you are trying to get rid off.

[bozo6919]

@koahnig
Ok, so it's impossible :/
Yes I can create a QPushButton for replacing the text thanks

[bozo6919]

So, I managed to do this like that:

Tabbed::Tabbed(TabbedBar *tabbedBar) : QWidget(nullptr, Qt::FramelessWindowHint)
{
	QPalette palette;
	TabbedView *tabbedBarGhost = createTabGhost(tabbedBar);

	palette.setBrush(this->backgroundRole(), QBrush(tabbedBarGhost->tab->grab()));
	this->setPalette(palette);
	this->setGeometry(tabbedBarGhost->tab->geometry());
	this->setWindowOpacity(0.5);
	delete tabbedBarGhost;
}

TabbedView *TabbedGhost::createTabGhost(TabbedBar *tabbedBar)
{
	TabbedView *tabbedBarGhost = new TabbedView(nullptr);
	int index = tabbedBar->currentIndex();
	QString text = tabbedBar->tabbedView->tabText(index);
	QWidget *widget = new QWidget;

	tabbedBarGhost->addTab(widget, text);
	tabbedBarGhost->setWindowOpacity(0);
	tabbedBarGhost->show();
	return tabbedBarGhost;
}

A TabbedBar is inherit of a QTabBar
A TabbedView is inherit of a QTabWidget