qt - How to change text alignment in QTabWidget in C++? -

this same question in: how change text alignment in qtabwidget?

i tried port python code c++ doesn't seem work.

here header file:

#include <qtabbar>  class horizontaltabwidget : public qtabbar {     q_object public:     explicit horizontaltabwidget(qwidget *parent = 0);  protected:     void paintevent(qpaintevent *);     qsize sizehint() const; }; 

here source file:

void horizontaltabwidget::paintevent(qpaintevent *) {     for(int index = 0; index < count(); index++)     {         qpainter * painter = new qpainter(this);         painter->begin(this);         painter->setpen(qt::blue);         painter->setfont(qfont("arial", 10));         qrect tabrect = tabrect(index);         painter->drawtext(tabrect, qt::alignvcenter | qt::textdontclip, tabtext(index));         painter->end();     } }  qsize horizontaltabwidget::sizehint() const {     return qsize(130, 130); } 

i use creating newtabwidget class inherits qtabwidget. in constructor of newtabwidget use:

settabbar(new horizontaltabwidget); 

this done able use tabwidget because settabbar protected. here get:

what missing?

edit: want create icons on top , labels under icons (as in qt creator):

the problem should in paint method; check if example below work you, should draw tabs same way qtcreator does. i've reused original tab style qstyleoptiontabv3 majority of paint work , rendered icon , tab's text on top of image produced:

class testtabbar : public qtabbar { public:     explicit testtabbar(qwidget* parent=0) : qtabbar(parent)     {         seticonsize(qsize(80, 80));     }  protected:     qsize tabsizehint(int) const     {         return qsize(80, 80);     }     void paintevent(qpaintevent *)     {         qstylepainter p(this);         (int index = 0; index < count(); index++)         {             qstyleoptiontabv3 tab;             initstyleoption(&tab, index);              qicon tempicon = tab.icon;             qstring temptext = tab.text;             tab.icon = qicon();             tab.text = qstring();              p.drawcontrol(qstyle::ce_tabbartab, tab);              qpainter painter;             painter.begin(this);             qrect tabrect = tabrect(index);             tabrect.adjust(0, 8, 0, -8);             painter.drawtext(tabrect, qt::alignbottom | qt::alignhcenter, temptext);             tempicon.paint(&painter, 0, tabrect.top(), tab.iconsize.width(), tab.iconsize.height(), qt::aligntop | qt::alignhcenter);                 painter.end();         }     } };  class testtabwidget : public qtabwidget { public:     explicit testtabwidget(qwidget *parent = 0) : qtabwidget(parent)     {         settabbar(new testtabbar());     } }; 

tabwidget init:

testtabwidget* test = new testtabwidget(this); test->setgeometry(20, 20, 300, 200); test->addtab(new qwidget(), qicon("icon0.png"), "test0"); test->addtab(new qwidget(), qicon("icon1.png"), "test1"); test->settabposition(qtabwidget::west); 

this worked fine on ubuntu, hope gonna work you, regards