From 0eaaf971ea81fc7b4197a84242d13d3bc27bdad0 Mon Sep 17 00:00:00 2001
From: Marcin Krzyzanowski <marcin.krzyzanowski@gmail.com>
Date: Tue, 14 May 2024 12:03:51 +0200
Subject: [PATCH] The use of CGContextSetFontSmoothingStyle is not permitted on
 the App Store

---
 Sources/STObjCLandShim/STObjCLandShim.m       | 5 +++++
 Sources/STTextView/STTextLayoutFragment.swift | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/Sources/STObjCLandShim/STObjCLandShim.m b/Sources/STObjCLandShim/STObjCLandShim.m
index e14df40..acb67bb 100644
--- a/Sources/STObjCLandShim/STObjCLandShim.m
+++ b/Sources/STObjCLandShim/STObjCLandShim.m
@@ -11,6 +11,10 @@
 //     CGContextSetFontSmoothingStyle(ctx, 16);
 // }
 
+
+#ifdef USE_FONT_SMOOTHING_STYLE
+// The use of non-public or deprecated APIs is not permitted on the App Store
+
 extern void CGContextSetFontSmoothingStyle(CGContextRef, int);
 extern int CGContextGetFontSmoothingStyle(CGContextRef);
 
@@ -21,3 +25,4 @@ void STContextSetFontSmoothingStyle(CGContextRef context, int style) {
 int STContextGetFontSmoothingStyle(CGContextRef context) {
     return CGContextGetFontSmoothingStyle(context);
 }
+#endif
diff --git a/Sources/STTextView/STTextLayoutFragment.swift b/Sources/STTextView/STTextLayoutFragment.swift
index 157ea40..484fcb0 100644
--- a/Sources/STTextView/STTextLayoutFragment.swift
+++ b/Sources/STTextView/STTextLayoutFragment.swift
@@ -34,15 +34,18 @@ final class STTextLayoutFragment: NSTextLayoutFragment {
 
         context.saveGState()
 
+#if USE_FONT_SMOOTHING_STYLE
         // This seems to be available at least on 10.8 and later. The only reference to it is in
         // WebKit. This causes text to render just a little lighter, which looks nicer.
         let useThinStrokes = true // shouldSmooth
         var savedFontSmoothingStyle: Int32 = 0
+
         if useThinStrokes {
             context.setShouldSmoothFonts(true)
             savedFontSmoothingStyle = STContextGetFontSmoothingStyle(context)
             STContextSetFontSmoothingStyle(context, 16)
         }
+#endif
 
         for lineFragment in textLineFragments {
             // Determine paragraph style. Either from the fragment string or default for the text view
@@ -64,9 +67,11 @@ final class STTextLayoutFragment: NSTextLayoutFragment {
             }
         }
 
+#if USE_FONT_SMOOTHING_STYLE
         if (useThinStrokes) {
             STContextSetFontSmoothingStyle(context, savedFontSmoothingStyle);
         }
+#endif
 
         if showsInvisibleCharacters {
             drawInvisibles(at: point, in: context)