% language=us runpath=texruns:manuals/luametafun

\environment luametafun-style

\startcomponent luametafun-synchronizers

\startchapter[title={Synchronizers}]

{Work in progress.} \blank


\definesyncpositions[1]
\definesyncpositions[2]

% \startuseMPgraphic{sync1}
%     StartPage ;
%         lmt_synchronizer [
%             index      = 1,
%             hoffset    = 0,
%             width      = BackSpace - LeftMarginDistance,
%             extend     = false,
%             prune      = true,
%             draw       = false,
%             fill       = true,
%         ] ;
%       clip currentpicture to Page ;
%       setbounds currentpicture to Page ;
%     StopPage ;
% \stopuseMPgraphic

% \startuseMPgraphic{sync1}
%     lmt_synchronizer [
%       % page       = "yes",
%         index      = 1,
%         hoffset    = 0,
%         width      = BackSpace - LeftMarginDistance,
%         extend     = false,
%         prune      = true,
%         draw       = false,
%         fill       = true,
%     ] ;
% \stopuseMPgraphic

% \definecolor[redshade]    [.5(darkred,white)]
% \definecolor[greenshade]  [.5(darkgreen,white)]
% \definecolor[blueshade]   [.5(darkblue,white)]
% \definecolor[yellowshade] [.5(darkyellow,white)]

% \startuseMPgraphic{sync1}
%     lmt_synchronizer [
%       % page       = "yes",
%         index      = 1,
%         hoffset    = 0,
%         width      = BackSpace - LeftMarginDistance,
%         extend     = false,
%         prune      = true,
%         draw       = false,
%         fill       = true,
%         colors     = { "redshade", "greenshade", "blueshade", "yellowshade" }
%     ] ;
% \stopuseMPgraphic

\startuseMPgraphic{sync2}
    lmt_synchronizer [
        index   = 2,
        region  = OverlayRegion,
        hoffset = -1cm,
        width   = 1cm,
        extend  = true,
        prune   = false,
        draw    = false,
        fill    = true,
    ] ;
    clip currentpicture to OverlayBox leftenlarged 1cm;
    setbounds currentpicture to OverlayBox ;
\stopuseMPgraphic

\defineoverlay[tempoverlay1][\useMPgraphic{sync1}]
\defineoverlay[tempoverlay2][\useMPgraphic{sync2}]

% \setupbackgrounds[page][background=tempoverlay1]

\startlinecorrection
\framed
    [region=yes,background=tempoverlay2,width=14cm,align=normal]
    \bgroup
        \syncposition[2][1]\samplefile{ward}\endgraf
        \syncposition[2][2]\samplefile{ward}\endgraf
        \syncposition[2][3]\samplefile{ward}\endgraf
    \egroup
\stoplinecorrection

% \vskip1cm \hskip1cm \framed[region=yes,background=tempoverlay2,width=16cm,align=normal]{%
%     \syncposition[2][1]\samplefile{ward}\endgraf
%     \syncposition[2][2]\samplefile{ward}\endgraf
%     \syncposition[2][3]\samplefile{ward}\endgraf
% }

% \vskip1cm \hskip1cm \framed[region=yes,background=tempoverlay2,width=10cm,align=normal]{%
%     \syncposition[2][1]\samplefile{ward}\endgraf
%     \syncposition[2][2]\samplefile{ward}\endgraf
%     \syncposition[2][3]\samplefile{ward}\endgraf
% }

% \dorecurse {100} {
% \dorecurse {1} {
%     \startchapter[title={Test #1}]
%         \syncposition[1][1,reset]\dorecurse{20}{\samplefile{ward}\endgraf}
%         \syncposition[1][2]\dorecurse {4}{\samplefile{ward}\endgraf}
%         \syncposition[1][3]\dorecurse {7}{\samplefile{ward}\endgraf}
%         \syncposition[1][4]\dorecurse {3}{\samplefile{ward}\endgraf}
%     \stopchapter
% }

% \dorecurse {100} {
% \dorecurse {1} {
%     \startchapter[title={Test #1}]
%         \syncposition[1][1]\dorecurse{1}{\samplefile{ward}\endgraf}
%         \syncposition[1][2]\dorecurse{1}{\samplefile{ward}\endgraf}
%         \syncposition[1][3]\dorecurse{1}{\samplefile{ward}\endgraf}
%         \syncposition[1][4]\dorecurse{1}{\samplefile{ward}\endgraf}
%     \stopchapter
% }

\stopchapter

\stopcomponent