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How can I avoid drawing the focus rect on my buttons?

In order to not draw the focus rect of the buttons it is necessary to subclass the style and reimplement QStyle::drawControl() [qt.nokia.com] to strip out the State_HasFocus [doc.qt.nokia.com] state for the buttons.

See the following example:

  1. #include <QtGui>
  2.  
  3. class Style : public QWindowsStyle
  4. {
  5. public:
  6.   Style()
  7.   {}
  8.   void drawControl ( ControlElement element, const QStyleOption * option,
  9.     QPainter * painter, const QWidget * widget = 0 ) const
  10.   {
  11.     if(element == CE_PushButton) {
  12.       const QStyleOptionButton *b = qstyleoption_cast<const QStyleOptionButton *>(option);
  13.       QStyleOptionButton *btn = (QStyleOptionButton *)b;
  14.       if (btn) {
  15.         if (btn->state & State_HasFocus) {
  16.           btn->state = btn->state ^ State_HasFocus;
  17.         }
  18.       }
  19.       QWindowsStyle::drawControl(element, btn, painter, widget);
  20.  
  21.     } else {
  22.       QWindowsStyle::drawControl(element, option, painter, widget);
  23.     }}};
  24.  
  25. int main(int argc, char **argv)
  26. {
  27.   QApplication app(argc, argv);
  28.  
  29.   QWidget box;
  30.   QPushButton *button1 = new QPushButton(&box);
  31.   button1->setText("Number one");
  32.  
  33.   QPushButton *button2 = new QPushButton(&box);
  34.   button2->setText("Number two");
  35.  
  36.   button1->setStyle(new Style());
  37.   button2->setStyle(new Style());
  38.  
  39.   QVBoxLayout *layout = new QVBoxLayout(&box);
  40.   layout->addWidget(button1);
  41.   layout->addWidget(button2);
  42.  
  43.   box.show();
  44.   return app.exec();
  45. }
  46.  

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