Fix index out-of-range in pos_to_index

Fix a crash occurring from trying to access a list with a negative index when drag-selecting text above the field box boundaries.(cherry picked from commit 609538b441a0dcf7890b4656c98673ee8de8820d)
2012-12-09 13:14:58 -05:00 · 2012-12-09 13:14:58 -05:00 · 3b55244296
commit 3b55244296
parent b0b8813022
1 changed files with 3 additions and 0 deletions
--- a/albow/fields.py
+++ b/albow/fields.py
@ -893,6 +893,9 @@ class TextEditorWrapped(Widget):

            if line >= len(textL):
                line = len(textL) - 1
+                
+            if line < 0:
+                line = 0

            def width(i):
                return font.size(textL[line][:i])[0]