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Re: Ctrl * GetCallbackCtrl() [message #6193 is a reply to message #6121]

Thu, 02 November 2006 09:36

unodgs
Messages: 1367
Registered: November 2005
Location: Poland

Ultimate Contributor

Ok, it's not so perfect... Wink

Because if I change cursor in ChildGotFocus for edits the cursor change its place immediately on left click. For rest of controls cursor change place in WhenAction routine and it happens mostly on left mouse up.
Anyway I patched a little bit CtrlCore Wink

and I hope you'll accept this. What I've done is:

CtrlCore.h : Ctrl class

virtual void ChildMouseAction(Ctrl * ctrl, int event, Point p) {}

CtrlMouse.cpp

Image Ctrl::DispatchMouseEvent(int e, Point p, int zd) {
	if(!IsEnabled())
		return Image::Arrow();
	if(captureCtrl && captureCtrl != this && captureCtrl->IsMouseActive())
		return captureCtrl->MEvent0(e, p + GetScreenRect().TopLeft() -
		                            captureCtrl->GetScreenRect().TopLeft(), zd);
	Ctrl *top = this;
	if(e == MOUSEWHEEL && !GetParent()) {
		Ctrl *w = GetFocusCtrl();
		if(w) {
			top = w->GetTopCtrl();
			p = GetMousePos() - top->GetScreenRect().TopLeft();
		}
	}
	Ctrl *q = top->ChildFromPoint(p);
	if(parent)
		parent->ChildMouseAction(q, e, p);
	return q ? q->DispatchMouseEvent(e, p, zd) : top->MEvent0(e, p, zd);
}

This line was added:

if(parent) parent->ChildMouseAction(q, e, p);

With such a simple modification I can override ChildMouseActtion in my grid ctrl and has control over mouse events before they go to any child contol.

What do you think about it?

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