Make font_matches accessible via function only

src/buffer.rs

@@ -237,7 +237,7 @@ impl TextBufferLine {
 
 /// A buffer of text that is shaped and laid out
 pub struct TextBuffer<'a> {
-    pub font_matches: FontMatches<'a>,
+    font_matches: FontMatches<'a>,
     attrs: Attrs<'a>,
     lines: Vec<TextBufferLine>,
     metrics: TextMetrics,
@@ -507,6 +507,10 @@ impl<'a> TextBuffer<'a> {
         self.height / self.metrics.line_height
     }
 
+    pub fn font_matches(&self) -> &FontMatches<'a> {
+        &self.font_matches
+    }
+
     pub fn attrs(&self) -> &Attrs<'a> {
         &self.attrs
     }