TextLayoutManager: Reduce viewport top inset

The STTextView's viewport inset is reduced from half the visible height to a quarter of the visible height. This improves performance by preparing a smaller area of content ahead of the currently visible region.
krzyzanowskim · Jan 2, 2025 · 5dac8e4 · 5dac8e4
1 parent 5c0e0fe
commit 5dac8e4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Sources/STTextViewAppKit/STTextView.swift b/Sources/STTextViewAppKit/STTextView.swift
@@ -824,7 +824,7 @@ import AVFoundation
     }
 
     open override func prepareContent(in rect: NSRect) {
-        var insetRect = rect.inset(dy: -visibleRect.height / 2)
+        var insetRect = rect.inset(dy: -visibleRect.height / 4)
         insetRect.origin = CGPoint(x: max(0, insetRect.origin.x), y: max(insetRect.origin.y, 0))
         super.prepareContent(in: insetRect)
         layoutViewport()