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if not modules then modules = { } end modules ['s-fonts-variable'] = {
version = 1.001,
comment = "companion to s-fonts-variable.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
moduledata.fonts = moduledata.fonts or { }
moduledata.fonts.variable = moduledata.fonts.variable or { }
local format = string.format
local stripstring = string.nospaces
local lower = string.lower
local rep = string.rep
local context = context
local NC, NR, HL, ML = context.NC, context.NR, context.HL, context.ML
local bold, monobold, mono, formattedmono = context.bold, context.monobold, context.mono, context.formatted.mono
local show_glyphs = false trackers.register("modules.fonts.variables.glyphs", function(v) show_glyphs = v end)
local show_kerns = false trackers.register("modules.fonts.variables.kerns", function(v) show_kerns = v end)
function moduledata.fonts.variable.showvariations(specification)
specification = interfaces.checkedspecification(specification)
local fontfile = specification.font
local maximum = tonumber(specification.max) or 0xFFFF
local fontname = format("testfont-%s",i)
local fontsize = tex.dimen.bodyfontsize
if not fontfile then
return
end
local id, fontdata = fonts.definers.define {
name = fontfile,
-- size = fontsize,
cs = fontname,
}
if not fontdata then
context.type("no font with name %a found",fontname)
return
end
local resources = fontdata.resources
if not resources then
return
end
local variabledata = resources.variabledata or { }
-- if not variabledata then
-- return
-- end
if not fontdata.shared.rawdata.metadata.fullname then
fontdata.shared.rawdata.metadata.fullname = fontdata.shared.rawdata.metadata.fontname
end
context.starttitle { title = fontdata.shared.rawdata.metadata.fullname }
local parameters = fontdata.parameters
context.startsubject { title = "parameters" }
if parameters then
context.starttabulate { "|||" }
NC() monobold("ascender") NC() context("%p",parameters.ascender) NC() NR()
NC() monobold("descender") NC() context("%p",parameters.descender) NC() NR()
NC() monobold("emwidth") NC() context("%p",parameters.em) NC() NR()
NC() monobold("exheight") NC() context("%p",parameters.ex) NC() NR()
NC() monobold("size") NC() context("%p",parameters.size) NC() NR()
NC() monobold("slant") NC() context("%s",parameters.slant) NC() NR()
NC() monobold("space") NC() context("%p",parameters.space) NC() NR()
NC() monobold("shrink") NC() context("%p",parameters.spaceshrink) NC() NR()
NC() monobold("stretch") NC() context("%p",parameters.spacestretch) NC() NR()
NC() monobold("units") NC() context("%s",parameters.units) NC() NR()
context.stoptabulate()
else
context("no parameters")
end
context.stopsubject()
local features = fontdata.shared.rawdata.resources.features
context.startsubject { title = "features" }
if features then
local function f(g)
if g then
local t = table.sortedkeys(g)
local n = 0
for i=1,#t do
if #t[i] <= 4 then
n = n + 1
t[n] = t[i]
end
end
return table.concat(t," ",1,n)
end
end
context.starttabulate { "||p|" }
NC() monobold("gpos") NC() mono(f(features.gpos)) NC() NR()
NC() monobold("gsub") NC() mono(f(features.gsub)) NC() NR()
context.stoptabulate()
else
context("no features")
end
context.stopsubject()
local designaxis = variabledata.designaxis
context.startsubject { title = "design axis" }
if designaxis and #designaxis > 0 then
context.starttabulate { "||||c|c|c|c|c|" }
NC() bold("tag")
NC() bold("name")
NC() bold("variant")
NC() bold("flags")
NC() bold("value")
NC() bold("min")
NC() bold("max")
NC() bold("link")
NC() NR()
HL()
for k=1,#designaxis do
local axis = designaxis[k]
local tag = axis.tag
local name = axis.name
local variants = axis.variants
local first = variants and variants[1]
if first then
local haslimits = first.maximum
local haslink = first.link
for i=1,#variants do
local variant = variants[i]
NC() monobold(tag)
NC() context(name)
NC() context(variant.name)
NC() formattedmono("0x%04x",variant.flags)
NC() context(variant.value)
NC() context(variant.minimum or "-")
NC() context(variant.maximum or "-")
NC() context(variant.link or "-")
NC() NR()
tag = nil
name = nil
end
end
end
context.stoptabulate()
else
context("no design axis defined (no \\type{stat} table)")
end
context.stopsubject()
local axis = variabledata.axis
local instances = variabledata.instances
local list = { }
context.startsubject { title = "axis" }
if axis and #axis > 0 then
context.starttabulate { "|||c|c|c|" }
NC() bold("tag")
NC() bold("name")
NC() bold("min")
NC() bold("def")
NC() bold("max")
NC() NR()
HL()
for k=1,#axis do
local a = axis[k]
NC() monobold(a.tag)
NC() context(a.name)
NC() context(a.minimum)
NC() context(a.default)
NC() context(a.maximum)
NC() NR()
list[#list+1] = a.tag
end
context.stoptabulate()
else
context("no axis defined, incomplete \\type{fvar} table")
end
context.stopsubject()
local collected = { }
context.startsubject { title = "instances" }
if not instances or #instances == 0 or not list or #list == 0 then
context("no instances defined, incomplete \\type{fvar}/\\type{stat} table")
else
if #axis > 8 then
context.start()
context.switchtobodyfont { "small" }
if #axis > 12 then
context.switchtobodyfont { "small" }
end
end
context.starttabulate { "||" .. rep("c|",#list) .. "|" }
NC()
for i=1,#list do
NC() monobold(list[i])
end
NC()
local fullname = lower(stripstring(fontdata.shared.rawdata.metadata.fullname))
formattedmono("%s*",fullname)
NC() NR()
ML()
for k=1,#instances do
local i = instances[k]
NC() monobold(i.subfamily)
local values = i.values
local hash = { }
for k=1,#values do
local v = values[k]
hash[v.axis] = v.value
end
for i=1,#list do
NC() context(hash[list[i]])
end
NC()
local instance = lower(stripstring(i.subfamily))
mono(instance)
collected[#collected+1] = fullname .. instance
NC() NR()
end
context.stoptabulate()
if #axis > 8 then
context.stop()
end
end
context.stopsubject()
local sample = specification.sample
local features = specification.features or "default"
for i=1,#collected do
local instance = collected[i]
context.startsubject { title = instance }
local fontspecification = "name:" .. instance .. "*" .. features
context.start()
context.definedfont { fontspecification }
context.start()
if show_glyphs then
context.showglyphs()
end
if show_kerns then
context.showfontkerns()
end
-- print("using",fontspecification)
if sample and sample ~= "" then
context(sample)
else
context.input("zapf.tex")
end
context.stop()
context.blank { "big,samepage"}
context.showfontspacing()
context.par()
context.stop()
context.stopsubject()
if i > maximum then
context.startsubject { title = "And so on" }
context("no more than %i instances are shown",maximum)
context.par()
context.stopsubject()
break
end
end
-- local function showregions(tag)
--
-- local regions = variabledata[tag]
--
-- context.startsubject { title = tag }
-- if regions then
-- context.starttabulate { "|r|c|r|r|r|" }
-- NC() bold("n")
-- NC() bold("axis")
-- NC() bold("start")
-- NC() bold("peak")
-- NC() bold("stop")
-- NC() NR()
-- HL()
-- local designaxis = designaxis or axis
-- for i=1,#regions do
-- local axis = regions[i]
-- for j=1,#axis do
-- local a = axis[j]
-- NC() monobold(i)
-- NC() monobold(designaxis[j].tag)
-- NC() context("%0.3f",a.start)
-- NC() context("%0.3f",a.peak)
-- NC() context("%0.3f",a.stop)
-- NC() NR()
-- i = nil
-- end
-- end
-- context.stoptabulate()
-- else
-- context("no %s defined",tag)
-- end
-- context.stopsubject()
--
-- end
--
-- showregions("gregions")
-- showregions("mregions")
-- showregions("hregions")
context.stoptitle()
end
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