c++ - QItemDelegate with custom widgets -


i'm having problems qtableview , qitemdelegate classes. 1 column delegate creates simple combo box , works fine. 2nd column need widget has 2 combo boxes in single widget.

i've written following code in qitemdelegate, clear shows code 2nd column, 1 doesn't work. other simple combo-box isn't shown works fine:

qwidget *userdefinedunitsdelegate::createeditor(qwidget *parent,const qstyleoptionviewitem & option ,const qmodelindex & index ) const {     //set simple widget layout     qwidget* pwidget = new qwidget(parent);     qhboxlayout* hlayout = new qhboxlayout(pwidget);     pwidget->setlayout(hlayout);      //add 2 combo boxes layout     qcombobox* comboeditor = new qcombobox(pwidget);         qcombobox* comboeditor2 = new qcombobox(pwidget);         //now add both editors     hlayout->addwidget(comboeditor);     hlayout->addwidget(comboeditor2);     return pwidget; }

now displays fine when edit , click elsewhere doesn't stop editing. can offer pointers?

edit: need call commitdata() , closeeditor() @ point. can offer pointers on call these?

thanks.

you can keep editor widget member of class , emit commitdata when current index of 1 of comboboxes has changed. can connect currentindexchanged(int) slot , emit commitdata there:

qwidget *userdefinedunitsdelegate::createeditor(qwidget *parent,const qstyleoptionviewitem & option ,const qmodelindex & index ) const {     //set simple widget layout     pwidget = new qwidget(parent);     qhboxlayout* hlayout = new qhboxlayout(pwidget);     pwidget->setlayout(hlayout);      //add 2 combo boxes layout     qcombobox* comboeditor = new qcombobox(pwidget);         qcombobox* comboeditor2 = new qcombobox(pwidget);         connect(comboeditor,signal(currentindexchanged(int)),this,slot(setdata(int)));     connect(comboeditor2,signal(currentindexchanged(int)),this,slot(setdata(int)));      //now add both editors     hlayout->addwidget(comboeditor);     hlayout->addwidget(comboeditor2);     return pwidget; }  void userdefinedunitsdelegate::setdata(int val) {     emit commitdata(pwidget); }

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