Re: Can't find the list of all tags

[Vivien Malerba <vmalerba gmail com>]

On 10 December 2011 01:33, Igor Korot <ikorot01 gmail com> wrote:

Hi, ALL,
I am looking at the documentation for the gtk_text_buffer_create_tag().at
http://developer.gnome.org/gtk/2.24/GtkTextBuffer.html#gtk-text-buffer-create-tag.

Unfortunately it does not mention where I can get a list of all
predefined tag available.

IFAIK there is any list of predefined tags. You have to define your own tags before you can use them.
 

I am also looking at some code where I see this:


g_snprintf(buf, sizeof(buf), "UNDERLINE");
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table(
text_buffer ), buf );
if (!tag)
   tag = gtk_text_buffer_create_tag( text_buffer, buf,
"underline-set", TRUE, "underline", PANGO_UNDERLINE_SINGLE,  NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, start, end);

This code will make the text underlined.

I need the code to make it a strikethrough. I tried the following:

           g_snprintf(buf, sizeof(buf), "STRIKETHROUGH");
           tag = gtk_text_tag_table_lookup(
gtk_text_buffer_get_tag_table( text_buffer ),
                                            buf );
           if (!tag)
               tag = gtk_text_buffer_create_tag( text_buffer, buf,
                                                 "strikethrough-set", TRUE,
                                                 "strikethrough",
PANGO_ATTR_STRIKETHROUGH,
                                                 NULL );
           gtk_text_buffer_apply_tag (text_buffer, tag, start, end);

but it does not work.

From this code snipet it's difficult to tell as there is no information as how the "start" and "end" iterators are defined; you need to put one iter before the text to apply the tage to, and one iter after. Also, the  "strikethrough" property is meant to be a boolean, see http://developer.gnome.org/gtk3/stable/GtkTextTag.html#GtkTextTag--strikethrough.

Regards,

Vivien