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Overview
Comment: | First cut at separating the font description out of the dotfonter tool. Font descriptions are now in .dotfont files, which are syntactically just Lua. The seven segment font is added to the source kit as a sample. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
4dd79823203627c8262939edf8c01253 |
User & Date: | Ross 2015-12-30 00:51:28.988 |
Context
2015-12-30
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01:19 | Add a basic command line parser based on the Penlight library pl.lapp module, and use it to check arguments, produce a usage message, and implement a proper --verbose option. check-in: 9a99a4c5e4 user: Ross tags: trunk | |
00:51 | First cut at separating the font description out of the dotfonter tool. Font descriptions are now in .dotfont files, which are syntactically just Lua. The seven segment font is added to the source kit as a sample. check-in: 4dd7982320 user: Ross tags: trunk | |
00:12 | Clean up fossil extras a bit. check-in: 0a28bda947 user: Ross tags: trunk | |
Changes
Changes to src/dotfonter.lua.
︙ | ︙ | |||
22 23 24 25 26 27 28 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --]] local ttfont = require "ttfont" | < < < | < < < < < < | | > | < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | | < < | < | < < < < < < | < | < < < | < < < < < < < < < < < < < < | < < < < < < < < < < < < < < < | < < < < < | | | | | | > > > > | < < < < < < < | > | 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --]] local ttfont = require "ttfont" local verbose = true function V(...) if not verbose then return end io.write(...) io.write'\n' end -- The command line should get more elaborate processing and usage local f = arg[1] V('basename: ', f) -- open the font description local ok, dotfont = pcall(dofile, f .. ".dotfont") if not ok then print(f, ':', dotfont) os.exit(1) end V('loaded: ', f, '.dotfont') -- Run through the caracters in the rom and assemble a glyph for each -- one and map in in the font. local n = 0 for _,glyph in ipairs(dotfont.Glyphs) do ttfont.PlaceGlyph(glyph) ttfont.MapGlyph("unicode", glyph.unicode, glyph.name) if glyph.mac then ttfont.MapGlyph("mac", glyph.mac, glyph.name) end ttfont.MapGlyph("win", glyph.win, glyph.name) n = n + 1 end V('placed: ', n, ' glyphs') --[[ Set the strings. Note that ffam, fsub, ufid, name, vers, and PSnm are required by Windows. Of those, fsub defaults to 'Regular' and name gets a sensible defaults based on ffam and fsub. --]] assert(dotfont.Names.ffam) assert(dotfont.Names.ufid) ttfont.SetNames(dotfont.Names) -- get the finished font and write it as TTX local font = ttfont.GetFont() --print(font) font:save(f .. ".ttx") V('wrote: ', f, '.ttx') |
Added src/sevensegment.dotfont.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | --[[ #Seven segments for dotfonter --]] --[[ #License Copyright (C) 2015 Cheshire Engineering Corp. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --]] --[[ ##Seven segment display contours These are ready to be added to a glyph if called out in the rom. The style here is very angular, and does not include any gaps between segments that would have to appear in practical display construction. These are drawn on a design grid with 1024 units per em. and use nothing but on-contour points, and so have nothing but sharp corners. The segments are arranged as follows +-a-+ f b +-g-+ j e c +-d-+ h i and usually coded with a on bit 0 through g on bit 6. Most seven segment components include at least the decimal point dot aligned with the lower segment. Those intended for use in clocks include a second dot to make a colon. Because a font isn't constrained by wiring, I've included a third dot to make the tail of a comma, allowing the inclusion of period, comma, colon, and semicolon punctuation marks. ]] local segments = { a={ { 10, 896}, {630, 896}, {502, 768}, {138, 768}, }, b={ {640, 886}, {640, 458}, {512, 522}, {512, 758}, }, c={ {640, 438}, {640, 10}, {512, 138}, {512, 374}, }, d={ {630, 0}, { 10, 0}, {138, 128}, {502, 128}, }, e={ { 0, 10}, { 0, 438}, {128, 374}, {128, 138}, }, f={ { 0, 458}, { 0, 886}, {128, 758}, {128, 522}, }, g={ {10, 448}, {138, 512}, {502, 512}, {630, 448}, {502, 384}, {138, 384}, }, h={ {704, 10}, {704, 138}, {830, 138}, {830, 10}, }, i={ {704, 0}, {830, 0}, {704, -128}, }, j={ {704, 512}, {704, 638}, {830, 638}, {830, 512}, }, } -- Normalize a a glyph in the character ROM. -- Create an array of countours from its pat entry and provide defaults -- for metrics, name, and character codes. local function Glyph(t) assert(type(t)=='table') local pat = assert(t.pat) -- default metrics t.width = t.width or 1024 t.lsb = t.lsb or 0 t.a, t.d = t.a or 896, t.d or 0 -- default mapping assert(t.name) if not t.unicode then t.unicode = t.name:byte() end if not t.mac and t.unicode < 127 then t.mac = t.unicode end if not t.win then t.win = t.unicode end -- fill out array of contours for seg in ('abcdefghij'):gmatch'.' do if pat:find(seg) then t[#t+1] = segments[seg] end end return t end --[[ ##seven segment character generator ROM for HEX digits In a real character ROM, these are coded in a single binary word, usually with segment 'a' at bit 0, and 'g' at bit 6. Because Lua likes strings, we use a simpler coding here where each character maps to a string contain a list of lit segments. From that list, characters not in [a-g] will simply be ignored. Each entry is keyed by the character, and can be either a string or table. If it is a string, that string is treated as item [1] in an otherwise empty table. The table has the pattern at [1], and optionally includes fields named n for name, lsb for left side bearing, a for ascent, d for descent, width for width, --]] return { Glyphs = { Glyph{unicode=0x30, pat='abcdef ', name='zero'}, Glyph{unicode=0x31, pat=' bc ', name='one', lsb=512}, Glyph{unicode=0x32, pat='ab de g', name='two'}, Glyph{unicode=0x33, pat='abcd g', name='three'}, Glyph{unicode=0x34, pat=' bc fg', name='four'}, Glyph{unicode=0x35, pat='a cd fg', name='five'}, Glyph{unicode=0x36, pat='a cdefg', name='six'}, Glyph{unicode=0x37, pat='abc ', name='seven'}, Glyph{unicode=0x38, pat='abcdefg', name='eight'}, Glyph{unicode=0x39, pat='abc fg', name='nine'}, Glyph{unicode=0x41, pat='abc efg', name='A'}, Glyph{unicode=0x42, pat=' cdefg', name='B'}, Glyph{unicode=0x43, pat='a def ', name='C'}, Glyph{unicode=0x44, pat=' bcde g', name='D'}, Glyph{unicode=0x45, pat='a defg', name='E'}, Glyph{unicode=0x46, pat='a efg', name='F'}, Glyph{unicode=0x2E, pat='h', name='period', lsb=704}, Glyph{unicode=0x2C, pat='hi', name='comma', lsb=704}, Glyph{unicode=0x3A, pat='hj', name='colon', lsb=704}, Glyph{unicode=0x3B, pat='hij', name='semicolon', lsb=704}, Glyph{unicode=0x23, pat='abcdefghij', name='numbersign', lsb=0}, }, --[[ Set the strings. Note that ffam, fsub, ufid, name, vers, and PSnm are required by Windows. Of those, fsub defaults to 'Regular' and name gets a sensible defaults based on ffam and fsub. --]] Names = { copy='Copyright Ross Berteig 2015.', ffam='Upright Seven Segments', PSnm='UprightSevenSegments-Regular', ufid='Upright Seven Segments '.. os.date"%Y-%m-%d" , vers='Version 001.042', demo='ABCDEF 0123456789', } } |