Re: Notify a GtkContainer of a size change of a child widget

Thank you, I totally overlooked that...

On 05.08.2014 16:28, Jasper St. Pierre wrote:
If the size if your widget has changed, call gtk_widget_queue_resize on
your widget to queue a resize cycle.

On Tue, Aug 5, 2014 at 5:03 AM, ax487 <ax487 gmx de> wrote:

Hello all,

I have the following scenario: I have a huge custom GtkWidget which I
want to display inside a GtkViewport inside a GtkScrolledWindow. The
custom widget has implemented the get_preferred_height /
get_preferred_width methods to notify the container of its enormous
dimensions. Now assume that I want to offer the user the functionality
to zoom into the widget in question. Of course this would increase the
dimensions of widget even further. However, the GtkViewport doesn't know
that the widget's desired geometry has changed. Is there any way to
notify the GtkViewPort of this change? I noticed the (deprecated /
undocumented) gtk_container_resize_children method of the GtkContainer
but other than that I can't find anything in the documentation. I would
appreciate it if you could give me some pointers.

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