c++ - QT tree that allows multiselection -

i'm making simple file explorer , ran problems qt. want show user tree view of files on computer, want able select multiple files/directories , them later on (by selecting checkboxes or multiple select using ctrl+left click or shift+left click). i've placed qtreeview element , set model (qfilesystemmodel). gives me tree view, can't modify headers (column names) or add own column checkbox in every row (for example). qt new me, i've searched few hours tips/solutions, nothing working qfilesystemmodel. there can working?

the code short , simple:

qstring lpath = "c:/"; qstring rpath = "c:/"; lefttree_model = new qfilesystemmodel(this); righttree_model = new qfilesystemmodel(this);  lefttree_model->setrootpath(lpath); righttree_model->setrootpath(rpath);  //i have 2 tree views work same ui->lefttree->setmodel(lefttree_model); //ui->lefttree first tree view ui->righttree->setmodel(righttree_model); //the second 

use of following:

checkstaterole add checkboxes model. this, inherit custom item model (which you're going use) qfilesystemmodel, , reimplement data() method, return bool values checkstaterole. need qabstractitemmodel::setdata method handle changes. can check docs qabstractitemmodel see how change header texts (headerdata())

change selection mode of view allow multiple selections

edit: here's sample code inherit model

  class myfancymodel : public qfilesystemmodel   {   public:     myfancymodel(qobject* pparent = null) : qfilesystemmodel(pparent)     {     }      qvariant data(const qmodelindex & index, int role = qt::displayrole ) const     {       if (role == qt::checkstaterole)       {         // stub value true         return true;  // here return real values                        // depending on item checked       }       return qfilesystemmodel::data(index, role);     }   };