Avoid drawing hidden TreeView items

2021-12-07 21:45:20 +01:00
parent fdb29f28cf
commit c16d6b3d8d
1 changed files with 7 additions and 4 deletions
@@ -366,15 +366,18 @@ end

 function TreeView:draw()
  self:draw_background(style.background2)
+  local _y, _h = self.position.y, self.size.y

  local doc = core.active_view.doc
  local active_filename = doc and system.absolute_path(doc.filename or "")

  for item, x,y,w,h in self:each_item() do
-    self:draw_item(item,
-      item.abs_filename == active_filename,
-      item == self.hovered_item,
-      x, y, w, h)
+    if y + h >= _y and y < _y + _h then
+      self:draw_item(item,
+        item.abs_filename == active_filename,
+        item == self.hovered_item,
+        x, y, w, h)
+    end
  end

  self:draw_scrollbar()