mirror of https://github.com/odrling/Aegisub
264 lines
8.5 KiB
Lua
264 lines
8.5 KiB
Lua
--[[
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Copyright (c) 2007, Niels Martin Hansen, Rodrigo Braz Monteiro
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the Aegisub Group nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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]]
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-- Aegisub Automation 4 Lua karaoke skeleton
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-- Compatibility hatch
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if aegisub.lua_automation_version < 4 then
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include("karaskel.auto3")
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return
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end
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include("utils.lua")
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include("unicode.lua")
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-- Make sure karaskel table exists
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if not karaskel then
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karaskel = {}
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end
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-- Collect styles and metadata from the subs
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function karaskel.collect_head(subs)
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local meta = { res_x = 0, res_y = 0 }
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local styles = { n = 0 }
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for i = 1, #subs do
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local l = subs[i]
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if l.class == "style" then
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styles.n = styles.n + 1
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styles[styles.n] = l
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styles[l.name] = l
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l.margin_v = l.margin_t
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elseif l.class == "info" then
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local k = l.key:lower()
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if k == "playresx" then
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meta.res_x = math.floor(l.value)
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elseif k == "playresy" then
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meta.res_y = math.floor(l.value)
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end
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end
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end
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-- Fix missing resolution data
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if meta.res_x == 0 and meta_res_y == 0 then
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meta.res_x = 384
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meta.res_y = 288
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elseif meta.res_x == 0 then
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-- This is braindead, but it's how TextSub does things...
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if meta.res_y == 1024 then
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meta.res_x = 1280
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else
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meta.res_x = meta.res_y / 3 * 4
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end
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elseif meta.res_y == 0 then
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-- As if 1280x960 didn't exist
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if meta.res_x == 1280 then
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meta.res_y = 1024
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else
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meta.res_y = meta.res_x * 3 / 4
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end
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end
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return meta, styles
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end
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-- Precalc some info on a line
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-- Modifies the line parameter
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function karaskel.preproc_line(subs, meta, styles, line)
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-- Assume line is class=dialogue
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local kara = aegisub.parse_karaoke_data(line)
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line.kara = { n = 0 }
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line.furi = { n = 0 }
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if styles[line.style] then
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line.styleref = styles[line.style]
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else
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aegisub.debug.out(2, "WARNING: Style not found: " .. line.style .. "\n")
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line.styleref = styles[1]
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end
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line.text_stripped = ""
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line.duration = line.end_time - line.start_time
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local curx = 0
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local worksyl = { }
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for i = 0, #kara do
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local syl = kara[i]
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-- Spaces at the start and end of the syllable are best ignored
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local prespace, syltext, postspace = syl.text_stripped:match("^([ \t]*)(.-)([ \t]*)$")
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local prefix = syltext:sub(1,unicode.charwidth(syltext,1))
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if prefix ~= "#" and prefix ~= "＃" and i > 0 then
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line.kara[line.kara.n] = worksyl
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line.kara.n = line.kara.n + 1
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worksyl = { }
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end
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-- Check if there is a chance of furigana
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-- FIXME: multi-highlights aren't being generated, are they? At least not with syllables with a lone # in
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if syltext:find("|") or syltext:find("｜") then
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syltext = syltext:gsub("｜", "|")
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local maintext, furitext = syl:match("^(.-)|(.-)$")
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syltext = maintext
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local furi = { }
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furi.syl = worksyl
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local prefix = furitext:sub(1,unicode.charwidth(furitext,1))
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if prefix == "!" or prefix == "！" then
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furi.isbreak = true
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furi.spillback = false
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elseif prefix == "<" or prefix == "＜" then
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furi.isbreak = true
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furi.spillback = true
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else
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furi.isbreak = false
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furi.spillback = false
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end
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if furi.isbreak then
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furitext = furitext:sub(unicode.charwidth(furitext,1)+1)
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end
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furi.start_time = syl.start_time
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furi.end_time = syl.end_time
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furi.duration = syl.duration
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furi.text = furitext
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line.furi.n = line.furi.n + 1
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line.furi[line.furi.n] = furi
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end
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-- If this is the start of a highlight group, do regular processing
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if prefix ~= "#" and prefix ~= "＃" then
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-- Update stripped line-text
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line.text_stripped = line.text_stripped .. syl.text_stripped
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-- Copy data from syl to worksyl
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worksyl.text = syl.text
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worksyl.duration = syl.duration
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worksyl.kdur = syl.duration / 10
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worksyl.start_time = syl.start_time
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worksyl.end_time = syl.end_time
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worksyl.tag = syl.tag
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worksyl.line = line
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worksyl.style = line.styleref
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-- And add new data to worksyl
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worksyl.i = line.kara.n
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worksyl.text_stripped = syltext
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worksyl.width = aegisub.text_extents(line.styleref, syltext)
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curx = curx + aegisub.text_extents(line.styleref, prespace)
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worksyl.left = curx
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worksyl.center = curx + worksyl.width/2
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worksyl.right = curx + worksyl.width
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curx = curx + worksyl.width + aegisub.text_extents(line.styleref, postspace)
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-- TODO: inlinefx here
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end
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-- And in either case, add highlight data
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local hl = {
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start_time = worksyl.start_time,
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end_time = worksyl.end_time,
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duration = worksyl.duration
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}
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worksyl.highlights = { n = 1, [1] = hl }
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end
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-- Add last syllable
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line.kara[line.kara.n] = worksyl
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-- Full line sizes
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line.width, line.height, line.descent, line.extlead = aegisub.text_extents(line.styleref, line.text_stripped)
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-- Effective margins
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line.margin_v = line.margin_t
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line.eff_margin_l = ((line.margin_l > 0) and line.margin_l) or line.styleref.margin_l
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line.eff_margin_r = ((line.margin_r > 0) and line.margin_r) or line.styleref.margin_r
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line.eff_margin_t = ((line.margin_t > 0) and line.margin_t) or line.styleref.margin_t
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line.eff_margin_b = ((line.margin_b > 0) and line.margin_b) or line.styleref.margin_b
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line.eff_margin_v = ((line.margin_v > 0) and line.margin_v) or line.styleref.margin_v
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-- And positioning
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if line.styleref.align == 1 or line.styleref.align == 4 or line.styleref.align == 7 then
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-- Left aligned
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line.left = line.eff_margin_l
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line.center = line.left + line.width / 2
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line.right = line.left + line.width
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line.x = line.left
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line.halign = "left"
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elseif line.styleref.align == 2 or line.styleref.align == 5 or line.styleref.align == 8 then
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-- Centered
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line.left = (meta.res_x - line.eff_margin_l - line.eff_margin_r - line.width) / 2 + line.eff_margin_l
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line.center = line.left + line.width / 2
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line.right = line.left + line.width
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line.x = line.center
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line.halign = "center"
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elseif line.styleref.align == 3 or line.styleref.align == 6 or line.styleref.align == 9 then
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-- Right aligned
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line.left = meta.res_x - line.eff_margin_r - line.width
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line.center = line.left + line.width / 2
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line.right = line.left + line.width
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line.x = line.right
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line.halign = "right"
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end
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line.hcenter = line.center
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if line.styleref.align >=1 and line.styleref.align <= 3 then
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-- Bottom aligned
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line.bottom = meta.res_y - line.eff_margin_b
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line.middle = line.bottom - line.height / 2
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line.top = line.bottom - line.height
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line.y = line.bottom
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line.valign = "bottom"
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elseif line.styleref.align >= 4 and line.styleref.align <= 6 then
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-- Mid aligned
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line.top = (meta.res_y - line.eff_margin_t - line.eff_margin_b) / 2 + line.eff_margin_t
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line.middle = line.top + line.height / 2
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line.bottom = line.top + line.height
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line.y = line.middle
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line.valign = "middle"
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elseif line.styleref.align >= 7 and line.styleref.align <= 9 then
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-- Top aligned
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line.top = line.eff_margin_t
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line.middle = line.top + line.height / 2
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line.bottom = line.top + line.height
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line.y = line.top
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line.valign = "top"
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end
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line.vcenter = line.middle
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-- Generate furigana style
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local furistyle = table.copy(line.styleref)
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furistyle.fontsize = furistyle.fontsize / 2
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furistyle.outline = furistyle.outline / 2
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-- Layout furigana
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for i = 1, line.furi.n do
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end
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end
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