Re: GtkTextView: inserting text with different styles

[Lance Dillon <riffraff169 yahoo com>]

----- Original Message ----
From: Carlos Pereira <jose carlos pereira ist utl pt>
To: gtk-app-devel-list gnome org
Sent: Monday, March 17, 2008 8:46:02 AM
Subject: GtkTextView: inserting text with different styles

Hi,
Let's say I have a GtkTextView, with two color tags, red and blue:

text_view = gtk_text_view_new ();
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
gtk_text_buffer_create_tag (buffer, "my_red", "foreground", "#ff0000", 
NULL);
gtk_text_buffer_create_tag (buffer, "my_blue", "foreground", "#00ff00", 
NULL);

Now I want too insert "Hello World":
gtk_text_buffer_insert_at_cursor (buffer, "Hello ", -1);
gtk_text_buffer_insert_at_cursor (buffer, "World", -1);

but I want Hello to be red and World to be blue.

What is the usual procedure to achieve this?
(perhaps get the iterators for the last insertion? it should be quite
easy but apparently I could not find information about this...)

Thanks,
Carlos
-----------------------
I would do this:

GtkTextIter iter;
GtkTextTag *myred,*myblue;
GtkTextTagTable *tb;

/* blah blah blah */
/* start at top */
gtk_text_buffer_get_iter_at_offset(buffer,&iter,0);
tb=gtk_text_buffer_get_tag_table(buffer);
myred=gtk_text_tag_new("my_red");
g_object_set(G_OBJECT(myred),"foreground","#ff0000",NULL);
myblue=gtk_text_tag_new("my_blue");
g_object_set(G_OBJECT(myblue),"foreground","#00ff00",NULL);
gtk_text_tag_table_add(GTK_TEXT_TAG_TABLE(tb),myred);
gtk_text_tag_table_add(GTK_TEXT_TAG_TABLE(tb),myblue);

gtk_text_buffer_insert(buffer,&iter,"random text...",-1);
gtk_text_buffer_insert_with_tags(buffer,&iter,"Hello ",-1,myred,NULL);
gtk_text_buffer_insert_with_tags(buffer,&iter,"World",-1,myblue,NULL);




There may be a little more efficient way to do this (add multiple tags to a tag table at the same time, 
perhaps?), but this is just off the top off my head...





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