From 28557ccc85f3c8d4a7e71ed33cd6b176a3fb7b69 Mon Sep 17 00:00:00 2001
From: Birunthan Mohanathas <birunthan@mohanathas.com>
Date: Sun, 14 Jul 2019 12:07:34 +0300
Subject: [PATCH] Implement CTFontDescriptor::font_format()

---
 core-text/src/font_descriptor.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/core-text/src/font_descriptor.rs b/core-text/src/font_descriptor.rs
index c241660..9359d30 100644
--- a/core-text/src/font_descriptor.rs
+++ b/core-text/src/font_descriptor.rs
@@ -241,6 +241,20 @@ impl CTFontDescriptor {
         }
     }
 
+    pub fn font_format(&self) -> Option<CTFontFormat> {
+        unsafe {
+            let value = CTFontDescriptorCopyAttribute(self.0, kCTFontFormatAttribute);
+            if value.is_null() {
+                return None;
+            }
+
+            let value = CFType::wrap_under_create_rule(value);
+            assert!(value.instance_of::<CFNumber>());
+            let format = CFNumber::wrap_under_get_rule(value.as_CFTypeRef() as CFNumberRef);
+            format.to_i32().map(|x| x as CTFontFormat)
+        }
+    }
+
     pub fn font_path(&self) -> Option<PathBuf> {
         unsafe {
             let value = CTFontDescriptorCopyAttribute(self.0, kCTFontURLAttribute);