Adjustable font width cache

aarzilli · Jul 24, 2018 · 1d42e34 · 1d42e34
1 parent d29231f
commit 1d42e34
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/util.go b/util.go
@@ -165,11 +165,20 @@ func FontHeight(f font.Face) int {
 }
 
 var fontWidthCache *lru.Cache
+var fontWidthCacheSize int
 
 func init() {
+	fontWidthCacheSize = 256
 	fontWidthCache, _ = lru.New(256)
 }
 
+func ChangeFontWidthCache(size int) {
+	if size > fontWidthCacheSize {
+		fontWidthCacheSize = size
+		fontWidthCache, _ = lru.New(fontWidthCacheSize)
+	}
+}
+
 type fontWidthCacheKey struct {
 	f      font.Face
 	string string