beta 2011.07.13 20:14

1 files changed, 25 insertions, 2 deletions

diff --git a/tex/context/fonts/cambria-math.lfg b/tex/context/fonts/cambria-math.lfg
index 3fd15d8a0..6415069e6 100644
--- a/tex/context/fonts/cambria-math.lfg
+++ b/tex/context/fonts/cambria-math.lfg
@@ -1,6 +1,11 @@
 -- This patch code is moved from font-pat.lua to this goodies
 -- files as it does not belong in the core code.
 
+-- This is a fix to the font itself i.e. the cached instance will
+-- be patched. When the goodie file is loaded the patch will be
+-- added to the patch list. No goodies setting is needed with
+-- the filename.
+
 local patches = fonts.handlers.otf.enhancers.patches
 
 local function patch(data,filename,threshold)
@@ -14,8 +19,21 @@ local function patch(data,filename,threshold)
     end
 end
 
-patches.register("after","check math parameters","cambria", function(data,filename) patch(data,filename,2800) end)
-patches.register("after","check math parameters","cambmath",function(data,filename) patch(data,filename,2800) end)
+patches.register("after","analyze math","cambria", function(data,filename) patch(data,filename,2800) end)
+patches.register("after","analyze math","cambmath",function(data,filename) patch(data,filename,2800) end)
+
+-- This is a runtime fix, but then we need to explicitly set
+-- the goodies parameter for the font. As a demonstration we
+-- we do both.
+
+local function FixDisplayOperatorMinHeight(value,target,original)
+    local o = original.mathparameters.DisplayOperatorMinHeight
+    if o < 2800 then
+        return 2800 * target.parameters.factor
+    else
+        return value -- already scaled
+    end
+end
 
 return {
     name = "cambria-math",
@@ -23,4 +41,9 @@ return {
     comment = "Goodies that complement cambria.",
     author = "Hans Hagen",
     copyright = "ConTeXt development team",
+    mathematics = {
+        parameters = {
+            DisplayOperatorMinHeight = FixDisplayOperatorMinHeight,
+        }
+    }
 }