textboxwidget: add math.floor (#9516)

2 years ago · e89d856ad9
parent 56388aa491
commit e89d856ad9
1 changed files with 1 additions and 1 deletions
--- a/frontend/ui/widget/textboxwidget.lua
+++ b/frontend/ui/widget/textboxwidget.lua
@ -1716,7 +1716,7 @@ function TextBoxWidget:moveCursorToCharPosKeepingViewCentered(charpos, centered_
    self:moveCursorToCharPos(charpos)
    self.for_measurement_only = false
    local _, _, screen_line_num = self:_getXYForCharPos(charpos)
-    local new_virtual_line_num = self.virtual_line_num + screen_line_num - self.lines_per_page / 2
+    local new_virtual_line_num = self.virtual_line_num + screen_line_num - math.floor(self.lines_per_page / 2)
    local max_virtual_line_num = #self.vertical_string_list - self.lines_per_page + 1
    if new_virtual_line_num < 1 then
        new_virtual_line_num = 1