I'm trying to translate a sample program from GTK FAQ
6.15. How do I validate/limit/filter the input to a GtkEntry?
http://www.gtk.org/faq/#AEN843
to GTKmm.
But it does not work and I don't know why. I've attached my program.
Could you help me, please?
Regards
Tometzky
--
...although Eating Honey was a very good thing to do, there was a
moment just before you began to eat it which was better than when you
were...
Winnie the Pooh
#include <gtkmm.h>
class AlphaUpperEntry : public Gtk::Entry
{
public:
AlphaUpperEntry();
protected:
virtual void insert_text_handler(Glib::ustring const& text,int*
position);
sigc::connection insert_text_connection;
};
AlphaUpperEntry::AlphaUpperEntry()
{
insert_text_connection = signal_insert_text().connect(
sigc::mem_fun(*this, &AlphaUpperEntry::insert_text_handler)
);
}
void AlphaUpperEntry::insert_text_handler(Glib::ustring const& text, int*
position)
{
Glib::ustring result; result.reserve(text.size());
for ( Glib::ustring::const_iterator it = text.begin(); it !=
text.end(); it++ ) {
if ( Glib::Unicode::isalpha(*it) ) {
result += Glib::Unicode::toupper(*it);
}
}
if ( ! result.empty() ) {
insert_text_connection.block();
insert_text(result, result.size(), *position);
insert_text_connection.unblock();
}
signal_insert_text().emission_stop();
}
int main(int argc, char* argv[])
{
Gtk::Main kit(argc, argv);
AlphaUpperEntry entry;
Gtk::Window window;
window.set_title("AlphaUpperEntry");
window.add(entry);
window.show_all();
kit.run(window);
return 0;
}
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