GtkDialog with text entry (GTK+ | C++)

Blow-Out · **Joined:** Wed Sep 19, 2012 3:06 pm **Posts:** 3

Hi gays, a novice on GTK+ programming and I need your help.

I wanna create dialog box with text entry and buttons "OK", "Cancel".
After click OK a need get entered string to entry otherwise NULL (ok blank stroke "").

Can anybody help?

Thanks in advance!

Blow-Out · **Joined:** Wed Sep 19, 2012 3:06 pm **Posts:** 3

That's my realization:

Code:

void show_entry_dialog()
{
    GtkWidget *dialog;
    GtkWidget *entry;
    GtkWidget *content_area;

    dialog = gtk_dialog_new();
    gtk_dialog_add_button(GTK_DIALOG(dialog), "OK", 0);
    gtk_dialog_add_button(GTK_DIALOG(dialog), "CANCEL", 1);

    content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
    entry = gtk_entry_new();
    gtk_container_add(GTK_CONTAINER(content_area), entry);

    gtk_widget_show_all(dialog);
    gint result = gtk_dialog_run(GTK_DIALOG(dialog));

    string entry_line = ""; // variable for entered text

    switch(result)
    {
    case 0:
        cout << "OK was clicked\n";
        entry_line = gtk_entry_get_text(GTK_ENTRY(entry));

        // TODO: validation for entry_line
        if(entry_line.length() == 0 || entry_line == "")
        {
            cout << "Line is to short. Nothing to passing\n";
            break;
        }

        cout << "Contact dialog passed text from entry: "
                << entry_line << endl;

        contact_list_add_item(contactlist, entry_line.c_str());
        break;

    case 1:
        cout << "CANCEL was clicked\n"; break;
    default:
        cout << "Undefined. Perhaps dialog was closed\n"; break;
    }

    gtk_widget_destroy(dialog);
}

errol · **Posted:** Wed Feb 20, 2013 9:31 am

Hi,

This looks like it should work OK. If you are using C++ there is also the option of using the C++ bindings which may be useful if you prefer that way of programming. It is called gtkmm and you sample code would look like this if I used it

Code:

void show_entry_dialog()
{
    Gtk::Dialog dialog;
    Gtk::Entry entry;

    dialog.add_button(Gtk::StockID(Gtk::Stock::OK), Gtk::RESPONSE_OK);
    dialog.add_button(Gtk::StockID(Gtk::Stock::CANCEL), Gtk::RESPONSE_CANCEL);

    dialog.get_content_area()->add(entry);
    dialog.show_all();

    string entry_line; // variable for entered text

    switch(dialog.run())
    {
    case Gtk::RESPONSE_OK:
        std::cout << "OK was clicked\n";
        entry_line = entry.get_text();

        // TODO: validation for entry_line
        if(entry_line.length() == 0)
        {
            std::cout << "Line is to short. Nothing to passing\n";
            break;
        }

        std::cout << "Contact dialog passed text from entry: "
                << entry_line << endl;

        contact_list_add_item(contactlist, entry_line.c_str());
        break;

    case Gtk::RESPONSE_CANCEL:
        std::cout << "CANCEL was clicked\n"; break;
    default:
        std::cout << "Undefined. Perhaps dialog was closed\n"; break;
    }
}

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