int main() { //! [1] Counter a, b; //! [1] //! [2] QObject::connect(&a, SIGNAL(valueChanged(int)), &b, SLOT(setValue(int))); //! [2] //! [3] a.setValue(12); // a.value() == 12, b.value() == 12 //! [3] //! [4] b.setValue(48); // a.value() == 12, b.value() == 48 //! [4] QWidget *widget = reinterpret_cast<QWidget *>(new QObject(0)); //! [5] if (widget->inherits("QAbstractButton")) { QAbstractButton *button = static_cast<QAbstractButton *>(widget); button->toggle(); //! [5] //! [6] } //! [6] //! [7] if (QAbstractButton *button = qobject_cast<QAbstractButton *>(widget)) button->toggle(); //! [7] }
/*! When one of the 6 coordinate check boxes is clicked, this checks to see how many are already selected. It only allows a box to be checked if there are fewer than 3 boxes already checked. If there are 3 checked, the OK button is enabled, otherwise it is disabled. \a whichFixed keeps track of the indexes of the currently selected check boxes. */ void GWSProjDlg::coordBoxClicked(int buttonNum) { QAbstractButton *b = coordButtonGroup->button(buttonNum); if (b->isChecked()) { if (whichFixed.size() < 3) { whichFixed.insert(buttonNum); if (whichFixed.size() == 3) { OKButton->setEnabled(true); } } else { b->toggle(); } } else { whichFixed.erase(buttonNum); OKButton->setEnabled(false); } }
void ClsQNeuronStateVariableDisplay::setSelectedStates(list<string> lstStates) { #ifdef DEBUG_CLSQSTATEVARIABLEDISPLAY cout << "ClsQNeuronStateVariableDisplay::setSelectedStates(list<string> lst)" << endl; #endif QList<QAbstractButton *> lst = qbtngrpStateVariables->buttons (); QList<QAbstractButton*>::iterator it; for (it = lst.begin(); it != lst.end(); ++it) { string str= (string)((*it)->text().latin1()); if(std::find(lstStates.begin(), lstStates.end(), str) != lstStates.end()){ QAbstractButton *qrb = (*it); qrb->toggle(); string strSinkID = qrb->text().latin1() + strID; QColor qc; qc.setHsv(clsFEDataClient->getDataSinkColor(strSinkID), 255, 210); QPalette palette = qrb->palette(); palette.setColor ( QColorGroup::Foreground, qc ); // palette.setColor ( QColorGroup::ButtonText, qc ); qrb->setPalette(palette); } } };