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*Hold() mouse events only work for widgets at top-left corner [message #56735]

Thu, 08 April 2021 10:53

Tom1
Messages: 1212
Registered: March 2007

Senior Contributor

Hi,

E.g. LeftHold() mouse event only works for widgets at top-left corner of the window. (The same issue can be seen in both Windows and GTK/Linux.) I tracked down the code and found that sDistMax() comparison of leftmousepos and mousepos are incompatible in a way that leftmousepos is window client area related and mousepos is widget related. Therefore, comparison fails and not LeftHold() is never called:

void    Ctrl::LHold() {
	GuiLock __;
	if(sDistMax(leftmousepos, mousepos) < GUI_DragDistance() && repeatTopCtrl && GetMouseLeft())
		repeatTopCtrl->DispatchMouseEvent(LEFTHOLD, repeatMousePos, 0);
}

EDIT: Would this be a correct fix?

void    Ctrl::LHold() {
	GuiLock __;
	if(sDistMax(leftmousepos, mousepos + mouseCtrl->GetRect().TopLeft()) < GUI_DragDistance() && repeatTopCtrl && GetMouseLeft())
		repeatTopCtrl->DispatchMouseEvent(LEFTHOLD, repeatMousePos, 0);
}

The same issue applies to RightHold() and MiddleHold().

Best regards,

Tom

[Updated on: Thu, 08 April 2021 11:42]

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