#include <iostream>
#include <QtWidgets>

struct my_widget : QWidget {
    my_widget() {
        setAcceptDrops( true );

        const auto te = new QTextEdit( this );

        const auto bl = new QHBoxLayout;
        bl->addSpacing( 20 );
        bl->addWidget( te, 1 );

        setLayout( bl );
    }

    void dragEnterEvent( QDragEnterEvent* e ) override {
        std::cout << "ENTER: x = " << e->pos().x() << ", y = " << e->pos().y() << std::endl;
        e->accept();
    }

    void dragLeaveEvent( QDragLeaveEvent* e ) override {
        std::cout << "LEAVE" << std::endl;
        e->accept();
    }

    void dragMoveEvent( QDragMoveEvent* e ) override {
        std::cout << "MOVE: x = " << e->pos().x() << ", y = " << e->pos().y() << std::endl;
        e->acceptProposedAction();
    }

    void dropEvent( QDropEvent* e ) override {
        std::cout << "DROP: x = " << e->pos().x() << ", y = " << e->pos().y() << std::endl;
        e->accept();
    }
};

int main( int argc, char** argv ) {
    QApplication a( argc, argv );

    my_widget w;
    w.show();

    return a.exec();
}