Re: turn on italics in TextView

[cecashon aol com]

Hi Doug, 

I would consider it a usability bug but not necessarily a textview widget bug. If you add text, that doesn't 
have an indent tag, to the start of the line then it doesn't get indented. I suppose you could check the 
whole line for an indent tag but that would go against performance. This one might be up to the application 
developer to deal with.

You could use spaces instead of tags depending on what is needed. To tag the inserted text at the start of 
the line you could check if there is an indent tag, and if there is, apply an indent tag to the newly 
inserted text.

You can check bugzilla to see if there are any bugs reported that are similar. There is a link here.

https://www.gtk.org/development.php

Eric

...
g_signal_connect_after(buffer, "insert-text", G_CALLBACK(insert_text), NULL);
...
static void insert_text(GtkTextBuffer *buffer, GtkTextIter *location, gchar *text, gint len, gpointer data)
  {
    g_print("Text %s len %i offset %i\n", text, len, gtk_text_iter_get_offset(location));
    GtkTextTagTable *table=gtk_text_buffer_get_tag_table(buffer);
    GtkTextTag *indent_tag=gtk_text_tag_table_lookup(table, "indent");
    GtkTextIter *start=gtk_text_iter_copy(location);
    gtk_text_iter_backward_chars(start, len);
    if(gtk_text_iter_has_tag(location, indent_tag))
      {
        g_print("Indent Tag\n");
        gtk_text_buffer_apply_tag(buffer, indent_tag, start, location);
      }
    gtk_text_iter_free(start);
  }
...