Re: Gtk::Widget::size_request

[Maggio Mago <dev maggio gmail com>]

Hello Dale,


I can not say why size_request() function is a member class. But maybe this message will help  you.

However, let me begin with a little reminder of the documentation:
"Also remember that the size request is not necessarily the size a widget will actually be allocated."

This is because the widget uses this function to calculate the minimum size to be allocated.

So it is not size_request which directly determine the size of the widget but the get_preferred_*()'s function.

You need to override the get_preferred* function.
I find this tutorial very well : https://developer.gnome.org/gtkmm-tutorial/3.4/sec-custom-containers.html.en



Regards,

2013/5/26 Dale <dale rdmp org>

Why is this method not virtual?  If I want to create a custom widget with dynamic size, how should I tell the parent what size to try to allocate?
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