diff options
| author | Colin Fletcher <colin.m.fletcher@googlemail.com> | 2015-02-11 00:24:11 +0000 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2015-03-28 18:34:02 +0100 |
| commit | b55b7ce1add5f639d1860f1a250c61ecf53f590a (patch) | |
| tree | 771f229529b3a0cbea6364b8d2e9d1089a468cc6 /gtk2_ardour/session_metadata_dialog.cc | |
| parent | 9d35a105bd3cfa14bd139028490ce880ce4d7fb5 (diff) | |
Display length & check digit of entered EAN-13 in metadata dialogue
Diffstat (limited to 'gtk2_ardour/session_metadata_dialog.cc')
| -rw-r--r-- | gtk2_ardour/session_metadata_dialog.cc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gtk2_ardour/session_metadata_dialog.cc b/gtk2_ardour/session_metadata_dialog.cc index f4e708f62a..c4eede02c3 100644 --- a/gtk2_ardour/session_metadata_dialog.cc +++ b/gtk2_ardour/session_metadata_dialog.cc @@ -228,6 +228,7 @@ EAN13MetadataField::EAN13MetadataField (Getter getter, Setter setter, string con entry = 0; label = 0; value_label = 0; + status_label = Gtk::manage (new Gtk::Label ("")); } MetadataPtr @@ -249,6 +250,7 @@ EAN13MetadataField::load_data (ARDOUR::SessionMetadata const & data) if (entry) { entry->set_text (_value); } + update_status (); } void @@ -257,6 +259,42 @@ EAN13MetadataField::update_value () // Accept only numeric characters _value = numeric_string (entry->get_text()); entry->set_text (_value); + update_status (); +} + +void +EAN13MetadataField::update_status () +{ + int len = _value.length (); + if (len == 13) { + // calculate EAN-13 modulo 10 check digit + int sum = 0; + const char *p = _value.c_str(); + for (int i =0; i < 12; i++) { + char c = p[i] - '0'; + if (i % 2) { + sum += c; + } else { + sum += c * 3; + } + } + sum %= 10; + if (sum == p[12] - '0') { + status_label->set_markup (string_compose( + "<span color=\"green\">%1: %2</span>", + _("EAN Check digit OK"), sum)); + } else { + status_label->set_markup (string_compose( + "<span color=\"#ffa755\">%1: %2 (expected %3)</span>", + _("EAN Check digit error"), p[12] - '0', sum)); + } + } else if (len > 0) { + status_label->set_markup (string_compose( + "<span color=\"#ffa755\">%1: %2 (<13)</span>", + _("EAN Length error"), len)); + } else { + status_label->set_text(""); + } } Gtk::Widget & @@ -694,6 +732,11 @@ SessionMetadataDialog<DataSet>::init_album_data () ptr = MetadataPtr (new EAN13MetadataField (&ARDOUR::SessionMetadata::barcode, &ARDOUR::SessionMetadata::set_barcode, _("EAN barcode"))); data_set->add_data_field (ptr); + + // EAN13MetadataField is the only kind of MetadataField which has a status label. + EAN13MetadataField &emf = (EAN13MetadataField &) *ptr; + ((Gtk::VBox &) data_set->get_widget()).pack_end (*emf.status_label); + emf.update_status (); } template <typename DataSet> |