From 5e77c855008fdcf32cae765f309d1b00729e4912 Mon Sep 17 00:00:00 2001
From: Jeff Muizelaar <jmuizelaar@mozilla.com>
Date: Thu, 3 May 2018 17:01:26 -0400
Subject: [PATCH] Expose CTFontCopyVariationAxes.

WebRender uses this function so it's probably useful to expose.
---
 core-text/src/font.rs | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/core-text/src/font.rs b/core-text/src/font.rs
index 45d8b35..a3fb15f 100644
--- a/core-text/src/font.rs
+++ b/core-text/src/font.rs
@@ -14,7 +14,7 @@ use font_descriptor::{CTFontDescriptor, CTFontDescriptorRef, CTFontOrientation};
 use font_descriptor::{CTFontSymbolicTraits, CTFontTraits, SymbolicTraitAccessors, TraitAccessors};
 
 use core_foundation::array::{CFArray, CFArrayRef};
-use core_foundation::base::{CFIndex, CFOptionFlags, CFTypeID, CFTypeRef, TCFType};
+use core_foundation::base::{CFIndex, CFOptionFlags, CFType, CFTypeID, CFTypeRef, TCFType};
 use core_foundation::data::{CFData, CFDataRef};
 use core_foundation::dictionary::{CFDictionary, CFDictionaryRef};
 use core_foundation::number::CFNumber;
@@ -316,6 +316,16 @@ impl CTFont {
         }
     }
 
+    pub fn get_variation_axes(&self) -> Option<CFArray<CFDictionary<CFString, CFType>>> {
+        unsafe {
+            let axes = CTFontCopyVariationAxes(self.0);
+            if axes.is_null() {
+                return None;
+            }
+            Some(TCFType::wrap_under_create_rule(axes))
+        }
+    }
+
     pub fn create_path_for_glyph(&self, glyph: CGGlyph, matrix: &CGAffineTransform)
                                  -> Result<CGPath, ()> {
         unsafe {
@@ -491,7 +501,7 @@ extern {
     //fn CTFontGetVerticalTranslationsForGlyphs
 
     /* Working With Font Variations */
-    //fn CTFontCopyVariationAxes
+    fn CTFontCopyVariationAxes(font: CTFontRef) -> CFArrayRef;
     //fn CTFontCopyVariation
 
     /* Getting Font Features */