// abc2svg - ABC to SVG translator
// @source: https://chiselapp.com/user/moinejf/repository/abc2svg
// Copyright (C) 2014-2020 Jean-Francois Moine - LGPL3+
//jianpu.js-module to output jiănpŭ(简谱)music sheets
abc2svg.jianpu={k_tb:["Cb","Gb","Db","Ab","Eb","Bb","F","C","G","D","A","E","B","F#","C#"],cde2fcg:new Int8Array([0,2,4,-1,1,3,5]),cgd2cde:new Int8Array([0,-4,-1,-5,-2,-6,-3,0,-4,-1,-5,-2,-6,-3,0]),acc2:new Int8Array([-2,-1,3,1,2]),acc_tb:["\ue264","\ue260",,"\ue262","\ue263","\ue261"],do_pscom:function(of,p){switch(p.match(/\w+/)[0]){case'staves':case'score':p=p.replace(/\(|\)/g,'')
break}
of(p)},output_music:function(of){var C=abc2svg.C,abc=this,cur_sy=abc.get_cur_sy(),voice_tb=abc.get_voice_tb()
if(!abc.cfmt().jianpu){of()
return}
function set_head(){var tsfirst=abc.get_tsfirst(),p_v=voice_tb[0],mt=p_v.meter.a_meter[0],sk=p_v.key,s={type:C.BLOCK,subtype:"text",dur:0,v:0,p_v:p_v,st:0,seqst:true,text:(sk.k_mode+1)+"="+
(abc2svg.jianpu.k_tb[sk.k_sf+7+
abc2svg.jianpu.cde2fcg[sk.k_mode]])},s2=voice_tb[0].sym
if(mt)
s.text+=' '+(mt.bot?(mt.top+'/'+mt.bot):mt.top)
s2.prev=s
s.next=s2
voice_tb[0].sym=s
tsfirst.ts_prev=s
s.ts_next=tsfirst
abc.set_tsfirst(s)}
function slice(s){var n,s2,s3
if(s.dur>=C.BLEN)
n=3
else if(s.dur==C.BLEN/2)
n=1
else
n=2
while(--n>=0){s2={type:C.REST,v:s.v,p_v:s.p_v,st:s.st,dur:C.BLEN/4,dur_orig:C.BLEN/4,stem:0,multi:0,nhd:0,notes:[{pit:s.notes[0].pit,jn:8}],xmx:0,noplay:true,time:s.time+C.BLEN/4,prev:s,next:s.next}
s.next=s2
if(s2.next)
s2.next.prev=s2
if(!s.ts_next){s.ts_next=s2
if(s.soln)
s.soln=false
s2.ts_prev=s
s2.seqst=true}else{for(s3=s.ts_next;s3;s3=s3.ts_next){if(s3.time<s2.time)
continue
if(s3.time>s2.time){s2.seqst=true
s3=s3.ts_prev}
s2.ts_next=s3.ts_next
s2.ts_prev=s3
if(s2.ts_next)
s2.ts_next.ts_prev=s2
s3.ts_next=s2
break}}
s=s2}}
function set_sym(p_v){var s,s2,note,pit,nn,p,a,m,i,sf=p_v.key.k_sf
delta=abc2svg.jianpu.cgd2cde[sf+7]-2
p_v.key.k_a_acc=[]
p_v.clef.invis=true
for(s=p_v.sym;s;s=s.next){s.st=p_v.st
switch(s.type){case C.CLEF:s.invis=true
default:continue
case C.KEY:delta=abc2svg.jianpu.cgd2cde[s.k_sf+7]-2
s.a_gch=[{type:'@',font:abc.get_font("annotation"),wh:[10,10],x:-5,y:30,text:(s.k_mode+1)+"="+
(abc2svg.jianpu.k_tb[s.k_sf+7+
abc2svg.jianpu.cde2fcg[s.k_mode]])}]
continue
case C.REST:if(s.notes[0].jn)
continue
s.notes[0].jn=0
if(s.dur>=C.BLEN/2)
slice(s)
continue
case C.NOTE:break}
s.stem=-1
s.stemless=true
if(s.sls){for(i=0;i<s.sls.length;i++)
s.sls[i].ty=C.SL_ABOVE}
for(m=0;m<=s.nhd;m++){note=s.notes[m]
p=note.pit
pit=p+delta
note.jn=((pit+77)%7)+1
note.pit=25
note.jo=(pit/7)|0
a=note.acc
if(a){nn=abc2svg.jianpu.cde2fcg[(p+5+16*7)%7]-sf
if(a!=3)
nn+=a*7
nn=((((nn+1+21)/7)|0)+2-3+32*5)%5
note.acc=abc2svg.jianpu.acc2[nn]}
if(note.sls){for(i=0;i<note.sls.length;i++)
note.sls[i].ty=C.SL_ABOVE}
if(note.tie_ty)
note.tie_ty=C.SL_ABOVE}
if(s.dur>=C.BLEN/2)
slice(s)
if(s.a_dd){for(i=0;i<s.a_dd.length;i++){if(s.a_dd[i].glyph=="stc"){abc.deco_cnv(["gstc"],s)
s.a_dd[i]=s.a_dd.pop()}}}}}
set_head()
for(v=0;v<voice_tb.length;v++)
set_sym(voice_tb[v])
of()},draw_symbols:function(of,p_voice){var i,m,nl,note,s,s2,x,y,C=abc2svg.C,abc=this,dot="\ue1e7",staff_tb=abc.get_staff_tb(),out_svg=abc.out_svg,out_sxsy=abc.out_sxsy,xypath=abc.xypath
if(!abc.cfmt().jianpu){of(p_voice)
return}
function draw_dur(s1,y,s2,n,nl){var s,s3
xypath(s1.x-3,y+5)
out_svg('h'+(s2.x-s1.x+8).toFixed(1)+'"/>\n')
y-=2.5
while(++n<=nl){s=s1
while(1){if(s.nflags&&s.nflags>=n){s3=s
while(s!=s2){if(s.next.beam_br1||(s.next.beam_br2&&n>2)||(s.next.nflags&&s.next.nflags<n))
break
s=s.next}
draw_dur(s3,y,s,n,nl)}
if(s==s2)
break
s=s.next}}}
function out_mus(x,y,p){out_svg('<text x="')
out_sxsy(x,'" y="',y)
out_svg('">'+p+'</text>\n')}
function out_txt(x,y,p){out_svg('<text class="bn" x="')
out_sxsy(x,'" y="',y)
out_svg('">'+p+'</text>\n')}
function draw_hd(s,x,y){var m,note,ym
for(m=0;m<=s.nhd;m++){note=s.notes[m]
out_txt(x-3.5,y+8,"01234567-"[note.jn])
if(note.acc)
out_mus(x-12,y+12,abc2svg.jianpu.acc_tb[note.acc+2])
if(note.jo>2){out_mus(x-1,y+22,dot)
if(note.jo>3){y+=3
out_mus(x-1,y+22,dot)}}else if(note.jo<2){ym=y+4
if(m==0&&s.nflags>0)
ym-=2.5*s.nflags
out_mus(x-1,ym,dot)}
y+=20}}
for(s=p_voice.sym;s;s=s.next){if(s.invis)
continue
switch(s.type){case C.METER:abc.draw_meter(s)
break
case C.NOTE:case C.REST:x=s.x
y=staff_tb[s.st].y
draw_hd(s,x,y)
if(s.nflags>=0&&s.dots)
out_mus(x+8,y+13,dot)
if(s.nflags>0){if(s.beam_st||s.type==C.REST){nl=s.nflags
s2=s
while(1){if(s2.nflags&&s2.nflags>nl)
nl=s2.nflags
if(s2.beam_end)
break
if(!s2.next||!s2.next.nflags||s2.next.nflags<=0)
break
s2=s2.next}
draw_dur(s,y,s2,1,nl)}}
break}}},set_fmt:function(of,cmd,param){if(cmd=="jianpu"){var cfmt=this.cfmt()
cfmt.jianpu=true
cfmt.staffsep=20
cfmt.sysstaffsep=14
this.set_v_param("stafflines","...")
cfmt.tuplets=[0,1,0,1]
return}
of(cmd,param)},set_pitch:function(of,last_s){of(last_s)
if(!last_s||!this.cfmt().jianpu)
return
var C=abc2svg.C
for(var s=this.get_tsfirst();s;s=s.ts_next){switch(s.type){case C.KEY:if(s.prev.type==C.CLEF||s.v!=0)
s.a_gch=null
break
case C.NOTE:s.ymx=20*s.nhd+22
if(s.notes[s.nhd].jo>2){s.ymx+=3
if(s.notes[s.nhd].jo>3)
s.ymx+=2}
break}}},set_width:function(of,s){of(s)
if(!this.cfmt().jianpu)
return
var w,m,note,C=abc2svg.C
switch(s.type){case C.CLEF:case C.KEY:s.wl=s.wr=0
break
case C.NOTE:for(m=0;m<=s.nhd;m++){note=s.notes[m]
if(note.acc&&s.wl<14)
s.wl=14}
break}},set_hooks:function(abc){abc.do_pscom=abc2svg.jianpu.do_pscom.bind(abc,abc.do_pscom)
abc.draw_symbols=abc2svg.jianpu.draw_symbols.bind(abc,abc.draw_symbols)
abc.output_music=abc2svg.jianpu.output_music.bind(abc,abc.output_music)
abc.set_format=abc2svg.jianpu.set_fmt.bind(abc,abc.set_format)
abc.set_pitch=abc2svg.jianpu.set_pitch.bind(abc,abc.set_pitch)
abc.set_width=abc2svg.jianpu.set_width.bind(abc,abc.set_width)
abc.get_glyphs().gstc='<circle id="gstc" cx="0" cy="-3" r="2"/>'
abc.get_decos().gstc="0 gstc 5 1 1"
abc.add_style("\n.bn {font-family:sans-serif; font-size:15px}")}}
abc2svg.modules.hooks.push(abc2svg.jianpu.set_hooks)
abc2svg.modules.jianpu.loaded=true