Merge pull request #450 from AvaloniaUI/do-not-run-generatos-for-long…

…-lines Do not run the element generators for performance reasons
AvaloniaUI · Aug 28, 2024 · a9b6b20 · a9b6b20
2 parents f35f37a + db888cb
commit a9b6b20
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/AvaloniaEdit/Rendering/VisualLine.cs b/src/AvaloniaEdit/Rendering/VisualLine.cs
@@ -166,6 +166,13 @@ void PerformVisualElementConstruction(IReadOnlyList<VisualLineElementGenerator>
             LastDocumentLine = FirstDocumentLine;
             var askInterestOffset = 0; // 0 or 1
 
+            // for long lines, do not run the element generators for performance reasons
+            if (lineLength > LENGTH_LIMIT)
+            {
+                _elements.Add(new VisualLineText(this, lineLength));
+                return;
+            }
+
             while (offset + askInterestOffset <= currentLineEnd)
             {
                 var textPieceEndOffset = currentLineEnd;