adaptive font size of return for iPad floating keyboard

Author: eagleoflqj

uipanel/Key.swift

@@ -16,6 +16,11 @@ func getShadow(_ colorScheme: ColorScheme) -> Color {
   return colorScheme == .dark ? darkShadow : lightShadow
 }
 
+func adjustFontSize(_ text: String, _ fontSize: CGFloat, _ widthLimit: CGFloat) -> CGFloat {
+  let textWidth = getTextWidth(text, fontSize)
+  return textWidth <= widthLimit ? fontSize : fontSize * widthLimit / textWidth
+}
+
 struct KeyView: View {
   @Environment(\.colorScheme) var colorScheme
   let x: CGFloat
@@ -199,7 +204,8 @@ struct EnterView: View {
           .aspectRatio(contentMode: .fit)
           .frame(height: height * 0.4)
       } else {
-        Text(label)
+        Text(label).font(
+          .system(size: adjustFontSize(label, height * 0.32, (width - columnGap) * 0.95)))
       }
     }
     .keyProperties(

uipanel/WrapLayout.swift

@@ -1,5 +1,11 @@
 import UIKit
 
+func getTextWidth(_ text: String, _ fontSize: CGFloat) -> CGFloat {
+  return (text as NSString).size(withAttributes: [
+    .font: UIFont.systemFont(ofSize: fontSize)
+  ]).width
+}
+
 func calculateLayout(_ candidates: [String], _ width: CGFloat) -> [Int] {
   var rowItemCount = [Int]()
   var currentRowCount = 0
@@ -8,9 +14,7 @@ func calculateLayout(_ candidates: [String], _ width: CGFloat) -> [Int] {
 
   for candidate in candidates {
     let itemWidth = max(
-      (candidate as NSString).size(withAttributes: [
-        .font: UIFont.systemFont(ofSize: candidateFontSize)
-      ]).width + 2 * candidateHorizontalPadding, minWidth)
+      getTextWidth(candidate, candidateFontSize) + 2 * candidateHorizontalPadding, minWidth)
     if currentRowWidth + itemWidth <= width {
       currentRowWidth += itemWidth
       currentRowCount += 1