local common  = fonts.goodies.load("common-math.lfg")
local presets = common.mathematics.tweaks.presets

return {
    name = "cambria-math",
    version = "1.00",
    comment = "Goodies that complement cambria.",
    author = "Hans Hagen & Mikael Sundqvist",
    copyright = "ConTeXt development team",
    mathematics = {
        parameters = {
            NoLimitSupFactor                =    0,
            NoLimitSubFactor                = 1000,
         -- AccentTopShiftUp                =    0,
         -- FlattenedAccentTopShiftUp       =    0,
         -- AccentExtendMargin              =   50,
            AccentBaseDepth                 =  300,
            RadicalDegreeBottomRaisePercent =   65,
            RadicalKernAfterDegree          = -900,
            RadicalRuleThickness            =  128, -- 133 in font
            DelimiterPercent                =   90,
            DelimiterShortfall              =  400,
            DisplayOperatorMinHeight        = 2800, -- 2500 in font
            PrimeRaisePercent               =   75, -- 50 default
         -- PrimeRaiseComposedPercent       =   25, -- 25 default
        },
        tweaks = {
            aftercopying = {
                {
                    tweak = "addmirrors",
                },
                presets.scripttocalligraphic { },
                presets.rsfstoscript         { rscale  = 0.97 },
                presets.rsfsuprighttoscript  { rscale  = 0.97 },
                presets.moderntocalligraphic { rscale  = 0.97 },
                presets.eulertocalligraphic  { rscale  = 0.97 },
                presets.xitsarabic           { rscale  = 0.95 },
                presets.fallbacks            { },
                presets.moveitalics          { correct = true },
                presets.moveitalics          { correct = true, letters = true },
                presets.moveintegrals        { factor = 1.5}, -- needs checking
                presets.wipeitalics          { },
                {
                    tweak = "simplifykerns",
                },
                {
                    tweak = "kerns",
                    list  = {
                        [0x2F] = {
                            topleft     = -0.2,
                         -- bottomleft  =  0,
                         -- topright    =  0,
                            bottomright = -0.2,
                        },
                        ["0x7D.parts.top"] = {
                            topright    = -0.1,
                        },
                        ["0x7D.parts.bottom"] = {
                            bottomright = -0.1,
                        },
                        ["0x29.parts.top"] = {
                            topright    = -0.2,
                        },
                        ["0x29.parts.bottom"] = {
                            bottomright = -0.2,
                        },
                        ["0x221A.parts.top"] = {
                            topright = 0.2,
                        },
                        ["0x221A.parts.bottom"] = {
                            bottomright = 0.2,
                        },
                        ["0x221A.variants.*"] = {
                            topright = 0.2,
                            bottomright = 0.2,
                        },

                        -- Keep as example. not needed in cambria (after all it is the reference):

                     -- ["0x222B.variants.*"] = integral_variants, ["0x222B.parts.top"] = integral_top, ["0x222B.parts.bottom"] = integral_bottom,
                     -- ["0x222C.variants.*"] = integral_variants, ["0x222C.parts.top"] = integral_top, ["0x222C.parts.bottom"] = integral_bottom,
                     -- ["0x222D.variants.*"] = integral_variants, ["0x222D.parts.top"] = integral_top, ["0x222D.parts.bottom"] = integral_bottom,
                     -- ["0x222E.variants.*"] = integral_variants, ["0x222E.parts.top"] = integral_top, ["0x222E.parts.bottom"] = integral_bottom,
                     -- ["0x222F.variants.*"] = integral_variants, ["0x222F.parts.top"] = integral_top, ["0x222F.parts.bottom"] = integral_bottom,
                     -- ["0x2230.variants.*"] = integral_variants, ["0x2230.parts.top"] = integral_top, ["0x2230.parts.bottom"] = integral_bottom,
                     -- ["0x2231.variants.*"] = integral_variants, ["0x2231.parts.top"] = integral_top, ["0x2231.parts.bottom"] = integral_bottom,
                     -- ["0x2232.variants.*"] = integral_variants, ["0x2232.parts.top"] = integral_top, ["0x2232.parts.bottom"] = integral_bottom,
                     -- ["0x2233.variants.*"] = integral_variants, ["0x2233.parts.top"] = integral_top, ["0x2233.parts.bottom"] = integral_bottom,
                    },
                },

                -- Accents are a mess. We migrate the extensibles from the combiners to the base accent
                -- and then need to tweak the width (which is auto set because it was zero with a large
                -- accent anchor offset). First we copy and fix.
                {
                    tweak = "extendaccents",
                },
                {
                    tweak = "fixaccents",
                },
                -- First we set the dimensions of the initial accent which started out as zero but we want
                -- a proper width.
                {
                    tweak = "dimensions",
                    list  = {
                        [0x00302] = { width = 2, anchor = 1.5, xoffset =  .25 }, -- widehat
                        [0x00303] = { width = 2, anchor = 1.5, xoffset =  .25 }, -- widetilde
                        [0x00306] = { width = 2, anchor = 1.5, xoffset =  .25 }, -- widebreve
                        [0x0030C] = { width = 2, anchor = 1.5, xoffset = .25 }, -- widecheck
                    },
                },
                -- Then we deal with all offsets and heights in one go. So we treat the initial accent
                -- as well as the variants here.
                {
                    tweak = "dimensions",
                    list  = {
                        -- here we want to apply to all
                        -- [0x00300] = { yoffset = -0.02, height = .95, all = true }, -- widegrave : 0x0060
                        -- [0x00301] = { yoffset = -0.02, height = .95, all = true }, -- wideacute : 0x00B4
                        -- [0x00302] = { yoffset = -0.03, height = .95, all = true }, -- widehat   : 0x02C6
                        -- [0x00303] = { yoffset = -0.02, height = .95, all = true }, -- widetilde : 0x02DC
                        -- [0x00306] = { yoffset = -0.03, height = .95, all = true }, -- widebre   : 0x02D8
                        -- [0x0030A] = { yoffset =  0.00, height = .95, all = true }, -- widering  : 0x02DA
                        -- [0x0030C] = { yoffset = -0.03, height = .95, all = true }, -- widecheck : 0x02C7

                        -- [0x00304] = { yoffset = -0.05, height = .95, all = true }, -- widebar   : 0x00AF

                        -- [0x00307] = { yoffset = -0.03, height = .95, all = true }, -- widedot   : 0x02D9
                        -- [0x00308] = { yoffset = -0.03, height = .95, all = true }, -- wideddot  : 0x00A8
                        [0x020DB] = { yoffset =  -0.03,    height = .95, all = true }, -- widedddot : 0x20DB (self)
                    },
                },
                -- We now copy these to the not wide slots so that we can set these to stretch as well,
                -- if only because it is less confusing and more consistent.
                {
                    tweak = "copyaccents",
                },
                -- So far for the accents.

                {
                    tweak   = "fixprimes",
                    scale   = 0.9,
                 -- smaller = true,
                    factor  = 0.9,
                },
                {
                    tweak = "checkspacing",
                },
                {
                    tweak = "addscripts",
                },
                {
                    tweak = "accentdimensions",
                    list  = { "over", "under" },
                 -- list  = {
                 --     [0x203E] = { factor = "over"  }, -- overbar
                 --     [0x203E] = { factor = "under" }, -- underbar
                 --     [0x23DE] = { factor = "over"  }, -- overbrace
                 --     [0x23DF] = { factor = "under" }, -- underbrace
                 --     [0x23DC] = { factor = "over"  }, -- overparent
                 --     [0x23DD] = { factor = "under" }, -- underparent
                 --     [0x23B4] = { factor = "over"  }, -- overbracket
                 --     [0x23B5] = { factor = "under" }, -- underbracket
                 -- }
                },
                {
                    tweak = "addrules",
                },
                {
                    tweak = "wipecues",
                },
                {
                    tweak = "addarrows",
                },
                {
                    tweak = "fixslashes",
                },
                {
                    tweak   = "addbars",
                    advance = 0.33,
                },
                {
                    tweak = "addactuarian",
                },
                {
                    tweak = "addfourier",
                    variant = 1,
                },
                -- { -- the ldots are squareshaped and the cdots are circular
                --     tweak = "fixellipses",
                -- },
            },
        },
        bigslots = {
            1, 2, 3, 4
        },
    },
}

-- For now we keep these commented as they show where we came from.

-- {
--     tweak = "dimensions",
--     list  = {
--      -- [0x00060] = { yoffset = -0.1  }, -- grave
--      -- [0x000B4] = { yoffset = -0.1  }, -- acute
--      -- [0x002C6] = { yoffset = -0.1  }, -- hat
--      -- [0x002DC] = { yoffset = -0.1  }, -- tilde
--      -- [0x000AF] = { yoffset = -0.1  }, -- bar
--      -- [0x002D8] = { yoffset = -0.15 }, -- breve
--      -- [0x002D9] = { yoffset = -0.15 }, -- dot
--      -- [0x000A8] = { yoffset = -0.1  }, -- ddot
--      -- [0x020DB] = { yoffset = -0.05 }, -- dddot
--      -- [0x002C7] = { yoffset = -0.1  }, -- check
--      -- [0x020D7] = { yoffset = -0.05 }, -- vec
--      -- [0x00300] = { yoffset = -0.12,  all=true }, -- widegrave
--      -- [0x00301] = { yoffset = -0.12,  all=true }, -- wideacute
--      -- [0x00302] = { yoffset = -0.12,  all=true }, -- widehat
--      -- [0x00303] = { yoffset = -0.12,  all=true }, -- widetilde
--      -- [0x00304] = { yoffset = -0.12,  all=true }, -- widebar
--      -- [0x00306] = { yoffset = -0.12,  all=true }, -- widebreve
--      -- [0x00307] = { yoffset = -0.025, all=true }, -- widedot
--      -- [0x00308] = { yoffset = -0.025, all=true }, -- wideddot
--      -- [0x020DB] = { yoffset = -0.1,   all=true }, -- widedddot
--      -- [0x0030A] = { yoffset = -0.12,  all=true }, -- widering
--      -- [0x0030C] = { yoffset = -0.12,  all=true }, -- widecheck
--         [0x1D43D] = { xoffset = 0.25, width = 1.15, italic = 0.2              }, -- J
--         [0x1D487] = {                                            anchor = 0.8 }, -- bold lower case italic f
--      -- [0x1D487] = { xoffset = 0,    width = 1,    italic = 0,  anchor = 1.3 }, -- bold lower case italic f
--     },
-- },