[nemiver] Be more tolerant with buffers with wrong content

[Dodji Seketeli <dodji src gnome org>]

commit d219c9599dbcb81d13d67fcfa0df33b4b92384a9
Author: Dodji Seketeli <dodji redhat com>
Date:   Wed Sep 8 17:08:19 2010 +0200

    Be more tolerant with buffers with wrong content
    
    	* src/uicommon/nmv-source-editor.cc (move_where_marker_to_line)
    	(set_visual_breakpoint_at_line): Do not throw when the buffer
    	doesn't contain the requested line. Just return false.

 src/uicommon/nmv-source-editor.cc |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/src/uicommon/nmv-source-editor.cc b/src/uicommon/nmv-source-editor.cc
index d3bd89e..60c6e95 100644
--- a/src/uicommon/nmv-source-editor.cc
+++ b/src/uicommon/nmv-source-editor.cc
@@ -834,7 +834,10 @@ SourceEditor::move_where_marker_to_line (int a_line, bool a_do_scroll)
 
     Gtk::TextIter line_iter =
             source_view ().get_source_buffer ()->get_iter_at_line (a_line - 1);
-    THROW_IF_FAIL (line_iter);
+    if (!line_iter) {
+      LOG_DD ("Couldn't find line " << a_line << " in the buffer");
+      return false;
+    }
 
     Glib::RefPtr<Gtk::TextMark> where_marker =
         source_view ().get_source_buffer ()->get_mark (WHERE_MARK);
@@ -906,7 +909,11 @@ SourceEditor::set_visual_breakpoint_at_line (int a_line, bool enabled)
     // marker doesn't yet exist, so create one of the correct type
     Gtk::TextIter iter = buf->get_iter_at_line (a_line);
     LOG_DD ("a_line: " << a_line);
-    THROW_IF_FAIL (iter);
+    if (!iter) {
+      LOG_DD ("Line not found in buffer");
+      return false;
+    }
+
     UString marker_name = UString::from_int (a_line);
 
     LOG_DD ("creating marker of type: " << marker_type);