Re: [gtkmm] treeview column width

[Christer Palm <palm nogui se>]

Hello Matt!

I use code similar to the following:

You need to provide your own toInt() and StringTokenizer(), but their 
function should be obvious.

Also note that setting the columns to fixed width doesn't mean that they 
can't be resized by the user - it just means that the width doesn't 
automatically adapt to the column contents, so fixed width is what you 
want. IIRC there's a resizable property that controls whether the user 
can resize the column or not.

std::string saveColumnWidths(std::vector<Gtk::TreeViewColumn*>& columns)
{
    std::string widths;


    typedef std::vector<Gtk::TreeViewColumn*>::const_iterator Iterator;
    for (Iterator col = columns.begin(); col != columns.end(); col++) {
        if (!widths.empty()) {
            widths += ",";
        }
        widths += toString((*col)->get_width());
    }

    return widths; 

}


void restoreColumnWidths(std::vector<Gtk::TreeViewColumn*>& columns,
    const std::string& widths_setting,
    const std::string& default_widths)
{
    if (widths_setting.empty()) {
        widths_setting = default_widths;
    }


    StringTokenizer tokenizer(widths_setting, ',');
    StringList& width_list = tokenizer.getTokens();
    StringList::const_iterator width = width_list.begin();


    std::vector<Gtk::TreeViewColumn*>::const_iterator col =
        columns.begin();


    while (col != columns.end() && width != width_list.end()) {
        (*col++)->set_fixed_width(toInt(*width++));
    }
}