diff options
Diffstat (limited to 'tex/context/base/mkiv/font-ext.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-ext.lua | 79 |
1 files changed, 68 insertions, 11 deletions
diff --git a/tex/context/base/mkiv/font-ext.lua b/tex/context/base/mkiv/font-ext.lua index 833c9cdea..f9db5e0d9 100644 --- a/tex/context/base/mkiv/font-ext.lua +++ b/tex/context/base/mkiv/font-ext.lua @@ -645,22 +645,32 @@ local function manipulatedimensions(tfmdata,key,value) local parameters = tfmdata.parameters local emwidth = parameters.quad local exheight = parameters.xheight - local width = 0 - local height = 0 - local depth = 0 + local newwidth = false + local newheight = false + local newdepth = false if value == "strut" then - height = gettexdimen("strutht") - depth = gettexdimen("strutdp") + newheight = gettexdimen("strutht") + newdepth = gettexdimen("strutdp") + elseif value == "mono" then + newwidth = emwidth else local spec = settings_to_array(value) - width = (spec[1] or 0) * emwidth - height = (spec[2] or 0) * exheight - depth = (spec[3] or 0) * exheight + newwidth = tonumber(spec[1]) + newheight = tonumber(spec[2]) + newdepth = tonumber(spec[3]) + if newwidth then newwidth = newwidth * emwidth end + if newheight then newheight = newheight * exheight end + if newdepth then newdepth = newdepth * exheight end end - if width > 0 then + if newwidth or newheight or newdepth then local additions = { } for unicode, old_c in next, characters do - local oldwidth = old_c.width + local oldwidth = old_c.width + local oldheight = old_c.height + local olddepth = old_c.depth + local width = newwidth or oldwidth or 0 + local height = newheight or oldheight or 0 + local depth = newdepth or olddepth or 0 if oldwidth ~= width then -- Defining the tables in one step is more efficient -- than adding fields later. @@ -737,6 +747,53 @@ local dimensions_specification = { registerotffeature(dimensions_specification) registerafmfeature(dimensions_specification) +-------------------------------------------------------------------------------------------------------------- + +-- local function fakemonospace(tfmdata) +-- local resources = tfmdata.resources +-- local gposfeatures = resources.features.gpos +-- local characters = tfmdata.characters +-- local descriptions = tfmdata.descriptions +-- local sequences = resources.sequences +-- local coverage = { } +-- local units = tfmdata.shared.rawdata.metadata.units +-- for k, v in next, characters do +-- local w = descriptions[k].width +-- local d = units - w +-- coverage[k] = { -d/2, 0, units, 0 } +-- end +-- local f = { dflt = { dflt = true } } +-- local s = #sequences + 1 +-- local t = { +-- features = { fakemono = f }, +-- flags = { false, false, false, false }, +-- index = s, +-- name = "p_s_" .. s, +-- nofsteps = 1, +-- order = { "fakemono" }, +-- skiphash = false, +-- type = "gpos_single", +-- steps = { +-- { +-- format = "single", +-- coverage = coverage, +-- } +-- } +-- } +-- gposfeatures["fakemono"] = f +-- sequences[s] = t +-- end +-- +-- fonts.constructors.features.otf.register { +-- name = "fakemono", +-- description = "fake monospaced", +-- initializers = { +-- node = fakemonospace, +-- }, +-- } + +-------------------------------------------------------------------------------------------------------------- + -- for zhichu chen (see mailing list archive): we might add a few more variants -- in due time -- @@ -1214,7 +1271,7 @@ local function getprivatecharornode(tfmdata,name) local font = properties.id local slot = getprivateslot(font,name) if slot then - -- todo: set current attribibutes + -- todo: set current attributes local char = tfmdata.characters[slot] local tonode = char.tonode if tonode then |