CODEWITHSUNDEEP
c++qt
HiFile.app - best file manager
HiFile.app - best file manager

Reputation: 7974

check if the focus was changed by mouse press inside mousePressEvent

I have a widget and I want to run some function when the user presses a mouse on it. But I want to run it ONLY if the mouse press caused focus change. I tried the following:

void MyWidget::mousePressEvent(QMouseEvent *event) 
{
    if (hasFocus()) // WRONG: I want to check whether the widget had focus before the mouse press, but it does not work, this always returns true
    { 
        //do something for which I need `event.pos()`
    }

    MyWidgetParent::mousePressEvent(event);
}

but it does not work. hasFocus() inside mousePressEvent() is always true, it seems that focus gets changed before mousePressEvent() is called. On the other hand, I cannot implement this functionality in focusInEvent because I do not know the mouse event.pos() in it.

Any ideas how to work around this problem?

Upvotes: 2

Views: 343

Answers (1)

PhilMasteG
PhilMasteG

Reputation: 3185

You could implement a handler for a QFocusEvent (focusInEvent) and check if the reason() is a MouseFocusReason. You can save that in a variable and in the QMouseEvent you check and reset that variable. So if the element was focused by the mouse and you get a mouse event you know, that that mouse event caused the focus change.

Upvotes: 1

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