Hey, the problem is, that the enterEvent and the leaveEvent, I implemented in my widget I am talking about (a QGraphicsView in my case) only get executed, when the mouse is not pressed. And the widget->underMouse(), I tried to use in the mainWindow in the mouseReleaseEvent func also returns false, because the mouse is (/was) pressed. To talk in code: void MainWindow::mouseReleaseEvent(QMouseEvent *event){ if(arrayOfQGraphicsViews[ui->Graph_TabWidget->currentIndex()]->underMouse()){ //returns false qDebug() << "placing..."; } } and void MainWindow::mouseReleaseEvent(QMouseEvent *event){ if(arrayOfQGraphicsViews[ui->Graph_TabWidget->currentIndex()]->mouseOverMe){ //also returns false qDebug() << "placing..."; } } void GraphWidget::enterEvent(QEvent *event){ qDebug() << "enter"; // not printed when the mouse is pressed mouseOverMe = true; } So, how could I check whether the mouse is over my widget in the mouseReleaseEvent in MainWindow? Thanks for answers!

@ Niagarer Oh the buttons grab the mouse so the Release event go back to the button you clicked on. You should consider using a list for the items that can be added as QPushButton will work against you. http://doc.qt.io/qt-5/dnd.html This one could be good base http://doc.qt.io/qt-5/qtwidgets-draganddrop-puzzle-example.html It also shows how you store your own data in the drop event so the QGraphicsScene can know what to add. Look at the PiecesList. You can easy adapt that to hold your "Drag items" and reuse the code to allow it to be dragged. ( same code for all cases)

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How to determine in MainWindow's mouseReleaseEvent() whether mouse is over a specific widget

Unsolved General and Desktop

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N Niagarer

@mrjj
In the example, a QTableWidget is used. And so it has no model (no QAbstractItemModel, the struct is actually the model). Would all this also work with QListViews or QTableViews?
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mrjj
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wrote on last edited by

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@Niagarer
Yes the delegate is the same regardless of the view/widget used.
http://doc.qt.io/qt-5/model-view-programming.html

The delegate can be seen as way to custom paint.
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