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trim text to 480 chars on input

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hard-cut rendered text to SIGNS_WIDTH

(text already stored in a sign is unaffected)
This commit is contained in:
Vanessa Ezekowitz 2014-08-08 23:47:20 -04:00
parent cfd9b11511
commit 03902e5392
1 changed files with 14 additions and 0 deletions
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14
signs_lib/init.lua
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@ -167,6 +167,14 @@ local charwidth = { }
-- File to cache the font size to.
local CHARDB_FILE = minetest.get_worldpath().."/signs_lib_chardb"
-- helper functions to trim sign text input/output
local function trim_input(text)
local txt_len = string.len(text)
text_trimmed = string.sub(text, 1, math.min(480, txt_len)) -- 6 rows, max 80 chars per
return text_trimmed
end
-- Returns true if any file differs from cached one.
local function check_random_chars()
for i = 1, 5 do
@ -363,6 +371,7 @@ local function make_line_texture(line, lineno)
width = width + w + 1
if width >= (SIGN_WIDTH - charwidth[" "]) then
width = 0
break
else
maxw = math_max(width, maxw)
end
@ -462,6 +471,7 @@ signs_lib.destruct_sign = function(pos)
end
local function make_infotext(text)
text = trim_input(text)
local lines = split_lines_and_words(text) or {}
local lines2 = { }
for _, line in ipairs(lines) do
@ -474,6 +484,9 @@ signs_lib.update_sign = function(pos, fields)
local meta = minetest.get_meta(pos)
local new
if fields then
fields.text = trim_input(fields.text)
meta:set_string("infotext", make_infotext(fields.text).." ")
meta:set_string("text", fields.text)
meta:set_int("__signslib_new_format", 1)
@ -809,6 +822,7 @@ signs_text_on_activate = function(self)
local text = meta:get_string("text")
local new = (meta:get_int("__signslib_new_format") ~= 0)
if text then
text = trim_input(text)
set_obj_text(self.object, text, new)
end
end