jumpy scroll 2

2026-10-17 10:52:39 -07:00
parent 82d6457d87
commit b85de9a2d0
2 changed files with 16 additions and 3 deletions
@@ -1,3 +1,4 @@
+import os
 import SwiftUI

 enum MDSegment {
@@ -449,8 +450,10 @@ private struct FlowText: NSViewRepresentable {
        func size(_ text: NSAttributedString, _ width: CGFloat?) -> CGSize {
            let same = measured.map { $0.text === text || $0.text.isEqual(to: text) } ?? false
            if same, let m = measured, m.width == width {
+                scrollLog.notice("measure hit len=\(text.length) width=\(width ?? -1) height=\(m.size.height)")
                return m.size
            }
+            let start = ContinuousClock.now
            if !same {
                storage.setAttributedString(text)
            }
@@ -458,6 +461,7 @@ private struct FlowText: NSViewRepresentable {
            layout.ensureLayout(for: container)
            let used = layout.usedRect(for: container)
            let size = CGSize(width: width ?? ceil(used.width), height: ceil(used.height))
+            scrollLog.notice("measure miss len=\(text.length) width=\(width ?? -1) oldWidth=\(self.measured?.width ?? -1) newText=\(!same) height=\(size.height) ms=\((ContinuousClock.now - start) / .milliseconds(1))")
            measured = (text, width, size)
            return size
        }