Re: drag and drop on GtkContainer

[Murray Cumming <murrayc murrayc com>]

On Sun, 2007-10-14 at 21:12 +0200, Johannes Schmid wrote:
> I am trying drag and drop on an GtkContainer and I want to find out the
> nearest child from the drop point. So far I tried to get the child
> position using gtk_widget_get_window() 

I can't find this function. Do you mean GtkWidget::window, which is the
GdkWindow? If so, what widget are you calling it on?

> and gdk_window_get_position() but
> that gives me the save position for all children

I don't understand what you mean by "save position".

>  (most likely the
> container position).

Do you mean the position of the container instead of the child?

>  I also tried to put every child into a GtkEventBox
> but that did not help either!

I guess you should look at how similar widgets that do this. For
instance, the GtkTreeView column headers seem to do this when dragging
columns, and I think that GtkNotebook now has support for dragging tabs.

I happen to know that you are trying to implement drag and drop on
Glom's flowing columned container. I fear that you might need to tell
the container about the drag position, force a redraw somehow, and
simply let it add a placeholder item while it is calculating the
position of the real items.

-- 
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