On 1 September 2017 at 12:41, Jeffrey Sheen <jeffrey.sheen00@xxxxxxxxxxxxxxxxxxxxx> wrote: > Thank you Emmanuele, > > I received similar feedback from another member of the list. > > I will take a look at the suggested source code in GtkTextView and GtkEntry > (I am unfamiliar, as I am not using the upper libraries in the GTK stack). If you're going to implement text editing, you're probably going to need much more than Pango alone. GTK+ has a lot of code dealing with text editing — both in single line and multi-line contexts. On top of that, there are two whole libraries for text editing widgets based on top of that code: - GtkSourceView: https://git.gnome.org/browse/gtksourceview - Tepl: https://git.gnome.org/browse/tepl/ > A suggestion of a more suitable mailing list would be appreciated as well. I > do not want to clutter an inappropriate group. You probably want gtk-devel-list, but mailing lists are kind of high latency and not everyone familiar with Pango reads them. You may want to join the #gtk+ IRC channel, on irc.gnome.org. Ciao, Emmanuele. > On 1 September 2017 at 12:34, Emmanuele Bassi <ebassi@xxxxxxxxx> wrote: >> >> Or, more likely, you sent the email to the wrong list. You probably >> want to talk to the developers of text editors based on GtkTextView >> and Pango. >> >> Additionally, you may want to look at GtkTextView itself. >> >> Ciao, >> Emmanuele. >> >> >> On 1 September 2017 at 12:14, Jeffrey Sheen >> <jeffrey.sheen00@xxxxxxxxxxxxxxxxxxxxx> wrote: >> > Dear list, >> > >> > As there has not been a response to my query about Unicode deletion-key >> > interrupts, one of the following must be true: >> > >> > My question does not make sense, as I have made an incorrect assumption >> > No-one on the list has written code for a text editor widget >> > No-one wishes to share their experience writing code for a text editor >> > widget >> > >> > The first reason is most likely, but I would appreciate a brief >> > explanation. >> > >> > Deletion-key interrupts are a fundamental use-case of creating an >> > application with interactive text, so I think this is an important >> > talking >> > point. >> > >> > Jeff. >> > >> > On 22 July 2017 at 12:45, Jeffrey Sheen >> > <jeffrey.sheen00@xxxxxxxxxxxxxxxxxxxxx> wrote: >> >> >> >> Dear list, >> >> >> >> I would like to leverage your experience with the Pango API. >> >> >> >> I am currently using "pango_layout_move_cursor_visually" to handle >> >> arrow-key presses. This establishes the byte index that the cursor >> >> should be >> >> moved to, visually skipping whole grapheme clusters. >> >> >> >> However, I understand that there are more states are required when >> >> handling the delete and backspace keys, depending on the text's >> >> language. >> >> >> >> i.e. it is possible to press a deletion key, and the grapheme cluster >> >> be >> >> altered, but not reduce the number of grapheme clusters in the string. >> >> >> >> Reading the Pango API documentation, this aspect appears to be >> >> represented >> >> with the "PangoLogAttr.backspace_deletes_character" member variable. >> >> >> >> However, unlike "pango_layout_move_cursor_visually", >> >> "pango_get_log_attrs" >> >> operates below the level of a PangoLayout object, requiring a >> >> PangoLanguage* >> >> to be passed. >> >> >> >> Must I manually store the language that a block of text is written in >> >> and >> >> convert this to a PangoLanguage object? >> >> >> >> What is the best practice when handling a delete/backspace key press? >> >> >> >> Cheers, >> >> >> >> Jeff. >> > >> > >> > >> > _______________________________________________ >> > gtk-list mailing list >> > gtk-list@xxxxxxxxx >> > https://mail.gnome.org/mailman/listinfo/gtk-list >> > >> >> >> >> -- >> https://www.bassi.io >> [@] ebassi [@gmail.com] > > > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > https://mail.gnome.org/mailman/listinfo/gtk-list > -- https://www.bassi.io [@] ebassi [@gmail.com] _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
