gtkmm - Gtk (mm) limit width of combobox -

because use comboboxes may contain text entries of long size, leads combobox increasing width far beyond reasonable size, trying give maximum width combobox.

if doing this:

class mycombo : public gtk::combobox {     private:         cellrenderertext render;     public:         mycombo() {             render.property_width_chars() = 10;             render.property_ellipsize() = pango::ellipsize_end;             pack_start(render, true);         } }; 

the result empty cell of desired width, seems logical since did not specify column show. how can attempt? using pack_start bypass renderer...

another approach one:

class mycombo : public gtk::combobox {     private:         cellrenderertext render;     public:         mycombo() {             pack_start(render, true);             set_cell_data_func(render, sigc::mem_fun(*this, &mycombo::render_iter));         }          void render_iter(const treemodel::const_iterator& iter) {             glib::ustring data = get_string_from_iter(iter);             int desired_width_chars = 10; //for example             render.property_text() = ellipsize_string(data, desired_width_chars);         } }; 

using approach, works, text in popup (what opens when u click combobox) shortened not want (obviously user should able read whole string , dont care popup widht.)

can please me this? happy advice/alternative solutions.

regards tagelicht

this may looking for:

cell_renderer_text.set_wrap_width(10)  

this python, idea :-)

unfortunately, documentation scarce. found poking around in anjuta/glade.

edit:

the docs here. not overly helpful, exist.