How to truncate a text in a custom GtkCellRenderer?

I trying to create custom GtkCellRenderer with some text. And I want this text truncated, when a size of GtkCellRenderer is smaller than size 开发者_如何学Goof text. For example:

alt text

How can I do this? Is this some property of CellRenderer or PangoLayout or I need to do this manually?

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Use the ellipsize and ellipsize-set properties of GtkCellRendererText.

If you want to do it manually with Pango, use pango_layout_set_ellipsize().