[latexila] Use gtef_iter_get_line_indentation()

[Sébastien Wilmet <swilmet src gnome org>]

commit c48d02699059cec22611b562d0b314a86625c5c1
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Nov 19 12:43:44 2016 +0100

    Use gtef_iter_get_line_indentation()

 src/completion.vala |    2 +-
 src/document.vala   |   23 -----------------------
 src/latex_menu.vala |    2 +-
 3 files changed, 2 insertions(+), 25 deletions(-)
---
diff --git a/src/completion.vala b/src/completion.vala
index a198604..8ac1e2b 100644
--- a/src/completion.vala
+++ b/src/completion.vala
@@ -495,7 +495,7 @@ public class CompletionProvider : GLib.Object, SourceCompletionProvider
     {
         Document doc = iter.get_buffer () as Document;
 
-        string cur_indent = doc.get_current_indentation (iter);
+        string cur_indent = Gtef.iter_get_line_indentation (iter);
         string indent = doc.tab.view.get_indentation_style ();
 
         CompletionChoice? env = _environments[env_name];
diff --git a/src/document.vala b/src/document.vala
index d332493..3055264 100644
--- a/src/document.vala
+++ b/src/document.vala
@@ -468,29 +468,6 @@ public class Document : Gtef.Buffer
         return path.has_suffix (".tex");
     }
 
-    public string get_current_indentation (TextIter iter)
-    {
-        TextIter start_iter, end_iter;
-        int line = iter.get_line ();
-        get_iter_at_line (out start_iter, line);
-        get_iter_at_line (out end_iter, line + 1);
-
-        string text = get_text (start_iter, end_iter, false);
-        string current_indent = "";
-
-        int index = 0;
-        unichar cur_char;
-        while (text.get_next_char (ref index, out cur_char))
-        {
-            if (cur_char == ' ' || cur_char == '\t')
-                current_indent += cur_char.to_string ();
-            else
-                break;
-        }
-
-        return current_indent;
-    }
-
     public DocumentStructure get_structure ()
     {
         if (_structure == null)
diff --git a/src/latex_menu.vala b/src/latex_menu.vala
index 172f5c2..a451abf 100644
--- a/src/latex_menu.vala
+++ b/src/latex_menu.vala
@@ -490,7 +490,7 @@ public class LatexMenu : Gtk.ActionGroup
 
         if (text_before.contains ("\n") || text_after.contains ("\n"))
         {
-            string current_indent = active_document.get_current_indentation (start);
+            string current_indent = Gtef.iter_get_line_indentation (start);
 
             if (current_indent != "")
             {