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-- 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)
local m = data.metadata.math
if m then
local d = m.DisplayOperatorMinHeight or 0
if d < threshold then
patches.report("DisplayOperatorMinHeight(%s -> %s)",d,threshold)
m.DisplayOperatorMinHeight = threshold
end
end
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",
version = "1.00",
comment = "Goodies that complement cambria.",
author = "Hans Hagen",
copyright = "ConTeXt development team",
mathematics = {
parameters = {
DisplayOperatorMinHeight = FixDisplayOperatorMinHeight,
}
}
}
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