forked from mia/Aegisub
55 lines
2.3 KiB
Lua
55 lines
2.3 KiB
Lua
-- Aegisub Automation demonstration script
|
|
-- Original written by Niels Martin Hansen
|
|
-- Given into the public domain
|
|
|
|
include("utils.lua")
|
|
|
|
name = "Text placement demo"
|
|
description = "Demonstration of the text_extents function, to do per-syllable placement of text."
|
|
version, kind, configuration = 3, 'basic_ass', {}
|
|
|
|
function process_lines(meta, styles, lines, config)
|
|
-- Prepare local variables
|
|
local output = { n=0 }
|
|
-- Loop through every line
|
|
for i = 0, lines.n-1 do
|
|
aegisub.report_progress(i/lines.n*100)
|
|
-- Only process dialogue lines
|
|
if lines[i].kind ~= "dialogue" then
|
|
table.insert(output, lines[i])
|
|
else
|
|
-- This is just for making the code a bit easier to read
|
|
local line = lines[i]
|
|
-- Get the rendered size of the entire line. (Won't work if there's line breaks in it.)
|
|
local totalx, totaly = aegisub.text_extents(styles[line.style], line.text_stripped)
|
|
-- Calculate where the first syllable should be positioned, if the line is to appear centered on screen
|
|
local curx, cury = (meta.res_x - totalx) / 2, meta.res_y / 2
|
|
-- And more preparations for per-syllable placement
|
|
local startx = curx
|
|
local tstart, tend = 0, 0
|
|
-- Now process each stllable
|
|
for j = 1, line.karaoke.n-1 do
|
|
-- A shortcut variable, and, most important: a copy of the original line
|
|
local syl, syllin = line.karaoke[j], copy_line(line)
|
|
-- Calculate the ending time of this syllable
|
|
tend = tstart + syl.duration*10
|
|
-- Get the rendered size of this syllable
|
|
local extx, exty, extd, extl = aegisub.text_extents(styles[line.style], syl.text_stripped)
|
|
-- Some debug stuff...
|
|
aegisub.output_debug(string.format("text_extents returned: %d, %d, %d, %d", extx, exty, extd, extl));
|
|
-- Replace the text of the copy of the line with this syllable, moving around
|
|
syllin.text = string.format("{\\an4\\move(%d,%d,%d,%d,%d,%d)\\kf%d\\kf%d}%s", curx, cury, curx, cury-exty, tstart, tend, tstart/10, syl.duration, syl.text)
|
|
-- Add the line to the output
|
|
table.insert(output, syllin)
|
|
-- And prepare for next iteration
|
|
curx = curx + extx
|
|
tstart = tend
|
|
end
|
|
-- More debug stuff
|
|
aegisub.output_debug(string.format("after syllable loop: totalx=%d curx-startx=%d", totalx, curx-startx))
|
|
end
|
|
end
|
|
-- And remember to return something :)
|
|
return output
|
|
end
|