added MTMathImage - draw latex image offscreen.

2023-09-12 07:18:44 +08:00
parent c15d09e04e
commit 32ba7c128a
3 changed files with 118 additions and 6 deletions
--- a/Sources/SwiftMath/MathRender/MTFontManager.swift
+++ b/Sources/SwiftMath/MathRender/MTFontManager.swift
@@ -11,17 +11,16 @@ import Foundation

 public class MTFontManager {
    
-    static public private(set) var manager:MTFontManager! = nil
+    static public private(set) var manager: MTFontManager = {
+        MTFontManager()
+    }()
    
    let kDefaultFontSize = CGFloat(20)
    
    static var fontManager : MTFontManager {
-        if manager == nil {
-            manager = MTFontManager()
-        }
-        return manager!
+        return manager
    }
-    
+
    public init() { }
    
    var nameToFontMap = [String: MTFont]()