forked from mtcontrib/signs_lib
support for non-ascii characters
This commit is contained in:
Isidor Zeuner
parent
8b975d7fa1
commit
d956c87dbc
84
api.lua
84
api.lua
@ -153,6 +153,7 @@ signs_lib.flip_walldir = {
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-- Initialize character texture cache
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local ctexcache = {}
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local ctexcache_wide = {}
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-- entity handling
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@ -328,8 +329,10 @@ end
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local TP = signs_lib.path .. "/textures"
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-- Font file formatter
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local CHAR_FILE = "%s_%02x.png"
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local CHAR_FILE_WIDE = "%s_%s.png"
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-- Fonts path
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local CHAR_PATH = TP .. "/" .. CHAR_FILE
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local CHAR_PATH_WIDE = TP .. "/" .. CHAR_FILE_WIDE
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-- Lots of overkill here. KISS advocates, go away, shoo! ;) -- kaeza
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@ -389,6 +392,7 @@ end
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local function build_char_db(font_size)
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local cw = {}
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local cw_wide = {}
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-- To calculate average char width.
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local total_width = 0
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@ -404,20 +408,32 @@ local function build_char_db(font_size)
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end
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end
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for i = 1, #signs_lib.wide_character_codes do
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local ch = signs_lib.wide_character_codes[i]
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local w, h = signs_lib.read_image_size(CHAR_PATH_WIDE:format("signs_lib_font_"..font_size.."px", ch))
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if w and h then
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cw_wide[ch] = w
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total_width = total_width + w
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char_count = char_count + 1
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end
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end
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local cbw, cbh = signs_lib.read_image_size(TP.."/signs_lib_color_"..font_size.."px_n.png")
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assert(cbw and cbh, "error reading bg dimensions")
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return cw, cbw, cbh, (total_width / char_count)
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return cw, cbw, cbh, (total_width / char_count), cw_wide
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end
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signs_lib.charwidth15,
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signs_lib.colorbgw15,
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signs_lib.lineheight15,
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signs_lib.avgwidth15 = build_char_db(15)
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signs_lib.avgwidth15,
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signs_lib.charwidth_wide15 = build_char_db(15)
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signs_lib.charwidth31,
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signs_lib.colorbgw31,
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signs_lib.lineheight31,
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signs_lib.avgwidth31 = build_char_db(31)
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signs_lib.avgwidth31,
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signs_lib.charwidth_wide31 = build_char_db(31)
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local sign_groups = {choppy=2, dig_immediate=2}
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local fences_with_sign = { }
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@ -453,7 +469,22 @@ local function char_tex(font_name, ch)
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end
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end
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local function make_line_texture(line, lineno, pos, line_width, line_height, cwidth_tab, font_size, colorbgw)
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local function char_tex_wide(font_name, ch)
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if ctexcache_wide[font_name..ch] then
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return ctexcache_wide[font_name..ch], true
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else
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local exists, tex = file_exists(CHAR_PATH_WIDE:format(font_name, ch))
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if exists then
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tex = CHAR_FILE_WIDE:format(font_name, ch)
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else
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tex = CHAR_FILE:format(font_name, 0x5f)
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end
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ctexcache_wide[font_name..ch] = tex
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return tex, exists
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end
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end
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local function make_line_texture(line, lineno, pos, line_width, line_height, cwidth_tab, font_size, colorbgw, cwidth_tab_wide)
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local width = 0
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local maxw = 0
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local font_name = "signs_lib_font_"..font_size.."px"
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@ -490,6 +521,27 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
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local word_l = #word
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local i = 1
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while i <= word_l do
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local wide_c
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if "&#x" == word:sub(i, i + 2) then
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local j = i + 3
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local collected = ""
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while j <= word_l do
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local c = word:sub(j, j)
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if c == ";" then
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wide_c = collected
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break
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elseif c < "0" then
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break
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elseif "f" < c then
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break
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elseif ("9" < c) and (c < "a") then
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break
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else
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collected = collected .. c
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j = j + 1
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end
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end
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end
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local c = word:sub(i, i)
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if c == "#" then
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local cc = tonumber(word:sub(i+1, i+1), 16)
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@ -497,6 +549,25 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
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i = i + 1
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cur_color = cc
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end
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elseif wide_c then
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local w = cwidth_tab_wide[wide_c]
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if w then
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width = width + w + 1
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if width >= (line_width - cwidth_tab[" "]) then
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width = 0
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else
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maxw = math_max(width, maxw)
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end
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if #chars < MAX_INPUT_CHARS then
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table.insert(chars, {
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off = ch_offs,
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tex = char_tex_wide(font_name, wide_c),
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col = ("%X"):format(cur_color),
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})
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end
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ch_offs = ch_offs + w
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end
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i = i + #wide_c + 3
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else
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local w = cwidth_tab[c]
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if w then
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@ -576,6 +647,7 @@ function signs_lib.make_sign_texture(lines, pos)
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local line_width
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local line_height
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local char_width
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local char_width_wide
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local colorbgw
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local widemult = 1
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@ -588,12 +660,14 @@ function signs_lib.make_sign_texture(lines, pos)
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line_width = math.floor(signs_lib.avgwidth31 * def.chars_per_line) * (def.horiz_scaling * widemult)
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line_height = signs_lib.lineheight31
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char_width = signs_lib.charwidth31
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char_width_wide = signs_lib.charwidth_wide31
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colorbgw = signs_lib.colorbgw31
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else
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font_size = 15
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line_width = math.floor(signs_lib.avgwidth15 * def.chars_per_line) * (def.horiz_scaling * widemult)
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line_height = signs_lib.lineheight15
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char_width = signs_lib.charwidth15
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char_width_wide = signs_lib.charwidth_wide15
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colorbgw = signs_lib.colorbgw15
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end
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@ -602,7 +676,7 @@ function signs_lib.make_sign_texture(lines, pos)
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local lineno = 0
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for i = 1, #lines do
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if lineno >= def.number_of_lines then break end
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local linetex, ln = make_line_texture(lines[i], lineno, pos, line_width, line_height, char_width, font_size, colorbgw)
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local linetex, ln = make_line_texture(lines[i], lineno, pos, line_width, line_height, char_width, font_size, colorbgw, char_width_wide)
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table.insert(texture, linetex)
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lineno = ln + 1
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end
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55
encoding.lua
55
encoding.lua
@ -203,6 +203,28 @@ local utf8_decode = {
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[210] = {[144] = "\165", [145] = "\180"}
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}
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local wide_character_codes = {
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}
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local unicode_install = function(
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numbers
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)
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local scope = utf8_decode
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for i = 1,#numbers-2 do
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if not scope[numbers[i]] then
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scope[numbers[i]] = {}
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end
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scope = scope[numbers[i]]
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end
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scope[numbers[#numbers-1]] = "&#x" .. numbers[#numbers] .. ";"
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table.insert(
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wide_character_codes,
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numbers[#numbers]
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)
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end
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unicode_install({38,"26"})
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local nmdc = {
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[36] = "$",
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[124] = "|"
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@ -230,36 +252,33 @@ function AnsiToUtf8(s)
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end
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function Utf8ToAnsi(s)
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local a, j, r, b = 0, 0, ""
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local a, j, r, b, scope = 0, 0, ""
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for i = 1, s and s:len() or 0 do
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b = s:byte(i)
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if b < 128 then
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if b == 0x26 then
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r = r .. "&"
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elseif b < 128 then
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if nmdc[b] then
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r = r .. nmdc[b]
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else
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r = r .. string.char(b)
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end
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elseif a == 2 then
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a, j = a - 1, b
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elseif a == 1 then
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--if j == nil or b == nil then return r end
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--print(j)
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--print(b)
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--local ansi = utf8_decode[j]
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--if ansi == nil then return r end
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--if ansi[b] == nil then return r end
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if utf8_decode[j] then
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if utf8_decode[j][b] then
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a, r = a - 1, r .. utf8_decode[j][b]
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elseif scope then
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if scope[b] then
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scope = scope[b]
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if "string" == type(scope) then
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r, scope = r .. scope
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end
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else
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r, scope = r .. "_"
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end
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elseif b == 226 then
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a = 2
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elseif b == 194 or b == 208 or b == 209 or b == 210 then
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j, a = b, 1
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elseif utf8_decode[b] then
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scope = utf8_decode[b]
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else
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r = r .. "_"
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end
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end
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return r
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end
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signs_lib.wide_character_codes = wide_character_codes
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2
init.lua
2
init.lua
@ -10,7 +10,7 @@ signs_lib.path = minetest.get_modpath(minetest.get_current_modname())
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local S, NS = dofile(signs_lib.path .. "/intllib.lua")
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signs_lib.gettext = S
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dofile(signs_lib.path.."/api.lua")
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dofile(signs_lib.path.."/encoding.lua")
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dofile(signs_lib.path.."/api.lua")
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dofile(signs_lib.path.."/standard_signs.lua")
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dofile(signs_lib.path.."/compat.lua")
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