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%% Herbert Voss <hvoss@tug.org>
%% Copyright (C) 2023
%%
%% This program can be redistributed and/or modified under the terms
%% of the LaTeX Project Public License Distributed from CTAN archives
%% in directory macros/latex/base/lppl.txt.
%%
%%
%% ------------------------------------- the doublepage obejcts ---------------------------
%% ||1in+evenside --- |1in+oddside ---||
%
\def\do@hvFloat@doublePage#1{% image on left and right page with caption on the right page
% #1-> 0/1 caption under/right
\setcounter{topnumber}{1}%
\setcounter{dbltopnumber}{1}%
\hvfloat@typeout{----------------------------- do@hvFloat@doublePage#1 --------------------------}%
\hvfloat@typeout{>>>do@hvFloat@doublePage: begin with definitions of \hv@floatObject}%
\global\hv@leftPageObjectWidth=\the\dimexpr\paperwidth-1in-\evensidemargin-\hvSet@bindCorrection\relax
\global\hv@tempWidthA=\the\dimexpr1in+\oddsidemargin-\hvSet@bindCorrection\relax
\xdef\hv@caption@format@temp{\hv@caption@format}% it gets lost otherwise for next afterpage
\@dblfpbot=0\p@ \@plus 1fil%
\global\hv@switchTypefalse
\setcounter{hv@tempCNTfigA}{\value{figure}}%
\setcounter{hv@tempCNTfigB}{\value{figure}}%
\setcounter{hv@tempCNTtabA}{\value{table}}%
\setcounter{hv@tempCNTtabB}{\value{table}}%
\savebox\hvCaptionBox{% NO rotation
\minipage{\textwidth}%% minipage, to get hyphenation
\let\@captype\hv@floatType
\caption*{\hv@longCap}%
\endminipage}%
\global\savebox\hvObjectBox{\ifhv@useOBox\usebox{\hvOBox}\else\hv@floatObject\fi}%
\ifnum#1=0\relax % no rotation, caption below
% \hvfloat@typeout{Texthöhe: \the\textheight}%
% \hvfloat@typeout{Objekthöhe: \the\ht\hvObjectBox}%
% \hvfloat@typeout{Captionhöhe: \the\ht\hvCaptionBox}%
\@tempdima=\dimexpr\ht\hvObjectBox+\ht\hvCaptionBox+\abovecaptionskip+\belowcaptionskip +\textfloatsep\relax%+\floatsep\relax
% \hvfloat@typeout{Summe: \the\@tempdima}%
\ifdim\@tempdima > \dimexpr\textheight-\hv@minTextlines\relax
% \hvfloat@typeout{hvfloat: switched to floattype p}%
\hv@switchTypetrue
\fi
\fi
\hvfloat@typeout{do@hvFloat@doublePage:hv@tempWidthA=\the\hv@tempWidthA}%
\ifhv@forceOutput
\do@hvFloat@doublePAGECaptionRight{#1}% no cheque
\else
%\checkoddpage
\ifoddpage
\hvfloat@typeout{do@hvFloat@doublePage:oddpage}%
\if@twocolumn
\hvfloat@typeout{do@hvFloat@doublePage: oddpage/twocolumn}%
\if@firstcolumn
\hvfloat@typeout{do@hvFloat@doublePage:oddpage->twocolumn->firstcolumn}%
\ifhv@switchType
\hvfloat@typeout{hvfloat: switched to floattype p}%
\afterpage{\do@hvFloat@doublePAGECaptionRight{#1}}%
\else
\hvfloat@typeout{calling do@hvFloat@doublePageCaptionRight}%
%\afterpage{
\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}%}%
\fi
\else
% \hvfloat@typeout{do@hvFloat@doublePage:oddpage->twocolumn->secondcolumn}%
\ifhv@tugboat
\do@hvFloat@doublePageCaptionRight{#1}%
\else
\ifhv@switchType
\do@hvFloat@doublePAGECaptionRight{#1}%
\else
\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}%
\fi
\fi
\fi
\else% onecolumn
\hvfloat@typeout{do@hvFloat@doublePage: oddpage/onecolumn}%
\ifhv@switchType
\hvfloat@typeout{do@hvFloat@doublePage: oddpage/onecolumn/switchType}%
\do@hvFloat@doublePAGECaptionRight{#1}%
\else
\hvfloat@typeout{do@hvFloat@doublePage: call do@hvFloat@doublePageCaptionRight #1}%
\ifhv@forceLeft
\do@hvFloat@doublePageCaptionRight{#1}% no \afterpage
\else
\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}%
\fi
\fi
\fi
\else% we have an even page
\hvfloat@typeout{do@hvFloat@doublePage:evenpage -> (\thepage)}%
%\typeout{>>>>Setze hv@atPageBeginfalse}%
\global\hv@atPageBeginfalse
\stepcounter{hvfloat@ref}%
\zsavepos{\thehvfloat@ref}%
\@tempy=\dimexpr-\zposy{\thehvfloat@ref} sp+\paperheight-1in-\topmargin-\headheight-\headsep\relax
\@tempx=\dimexpr-\zposx{\thehvfloat@ref} sp+\evensidemargin+1in\relax
%\typeout{>>>>\the\@tempx >>>>>\the\@tempy >>>>\f@size}%
\ifdim\@tempy > \dimexpr\f@size pt + 2pt % Interlinespace
%\typeout{>>>>Case 0, Leere Box oder Text auf der Seite \thehvfloat@ref}%
\else
\ifdim\@tempx = \z@
%\typeout{>>>>Case 2, Absolut oben links auf der Seite \thehvfloat@ref }%
\global\hv@atPageBegintrue
\else
%\typeout{>>>>Case 1, Oben auf der Seite \thehvfloat@ref, aber nicht am Anfang der Zeile}%
\fi
\fi
%---------
\ifhv@atPageBegin% At the top left of the even page -> output image
\do@hvFloat@doublePageCaptionRight{#1}
\else
\if@twocolumn
\if@firstcolumn
\ifhv@switchType
\afterpage{\afterpage{\do@hvFloat@doublePAGECaptionRight{#1}}}%
\else
\afterpage{\afterpage{\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}}}%
\fi
\else% second column
\ifhv@switchType
\afterpage{\do@hvFloat@doublePAGECaptionRight{#1}}%
\else
%\afterpage{
\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}%}%
\fi
\fi
\else% onecolumn
\hvfloat@typeout{do@hvFloat@doublePage:evenpage/onecolumn -> (\thepage)}%
\ifhv@switchType
\hvfloat@typeout{do@hvFloat@doublePage:evenpage/onecolumn/switchType -> (\thepage)}%
\afterpage{\do@hvFloat@doublePAGECaptionRight{#1}}%
\else
\hvfloat@typeout{do@hvFloat@doublePage:evenpage/onecolumn/noSwitchType -> (\thepage)}%
\ifhv@forceLeft
\hvfloat@typeout{do@hvFloat@doublePage:evenpage/onecolumn/noSwitchType/forceLeft -> (\thepage)}%
\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}%
\else
\afterpage{\afterpage{\do@hvFloat@doublePageCaptionRight{#1}}}%
\fi
\fi
\fi
\fi
\fi
\let\@fptop\hv@fptop
\fi
\endgroup% started at main macro \hvFloat
\hvfloat@typeout{----------------------------- do@hvFloat@doublePage#1 ... Ende ----------------------}%
}
%
\def\do@hvFloat@doublePageCaptionRight#1{% image on left and right page with caption on the right page ----------------------------------
\setcounter{topnumber}{1}%
\setcounter{dbltopnumber}{1}%
\hvfloat@typeout{do@hvFloat@doublePageCaptionRight->start}%
\do@hvFloat@doublePageCaptionRightObjectLeft{0pt}%
\do@hvFloat@doublePageCaptionRightObjectRight{#1}%
}
%
\def\do@hvFloat@doublePageCaptionRightObjectLeft#1{% left part of the object
\begin{\hv@floatType*}[t]
\hvfloat@typeout{>>>doublePage: begin with left side of the object \hv@floatObject}%
\hv@set@noverticalSpace
\hfuzz=\maxdimen
\let\c@hv@tempCNTfigA\c@figure
\let\c@hv@tempCNTtabA\c@table
\expandafter\hvFloatSet\expandafter{\hv@save@setting}%
\hvfloat@typeout{Float position parameter is for left page: !t}%
\global\savebox{\hvObjectBox}{\ifhv@useOBox\usebox{\hvOBox}\else\hv@floatObject\fi}%
\clipbox*{0 -\depth{} \hv@leftPageObjectWidth{} \height}{\usebox\hvObjectBox}%
\ifx\hv@label\@empty
\else
\ifx\hv@floatType\hv@figure
\global\refstepcounter{hv@tempCNTfigA}%
\else
\global\refstepcounter{hv@tempCNTtabA}% before caption
\fi
\label{\hv@label}%
\fi
\ifhv@global@sameHeight
\hvfloat@typeout{text should be of same height of both pages}%
\par\noindent\phantom{\parbox{\textwidth}{\caption*{\hv@longCap}}}%
% \vspace{-2pt}%
\fi
\hv@reset@noverticalSpace
\hvfloat@typeout{>>>doublePage: end with left side of the object \hv@floatObject}%
\end{\hv@floatType*}%
}
\def\do@hvFloat@doublePageCaptionRightObjectRight#1{% right part of the object
\begin{\hv@floatType*}[t]
\hvfloat@typeout{>>>doublePage: begin with right side of the object \hv@floatObject}%
\hv@set@noverticalSpace
\hfuzz=\maxdimen
\let\c@hv@tempCNTfigA\c@figure
\let\c@hv@tempCNTtabA\c@table
\expandafter\hvFloatSet\expandafter{\hv@save@setting}%
\global\savebox\hvObjectBox{\ifhv@useOBox\usebox{\hvOBox}\else\hv@floatObject\fi}%
\hv@tempWidthA=\the\dimexpr1in+\oddsidemargin-\hvSet@bindCorrection\relax% FÜR DTK
\hspace*{-\hv@tempWidthA}%
\hv@leftPageObjectWidth=\the\dimexpr\paperwidth-1in-\evensidemargin-\hvSet@bindCorrection\relax% FÜR FTK
\savebox\hv@rightBox{\clipbox*{\hv@leftPageObjectWidth{} -\depth{} \width{} \height{}}{\usebox\hvObjectBox}}%
\hv@tempWidthB=\dimexpr\textwidth-\wd\hv@rightBox-\hvSet@bindCorrection+1in+\oddsidemargin-\hv@floatCapSep\relax
\hvfloat@typeout{Height of right box: \the\ht\hv@rightBox}%
\hvfloat@typeout{Depth of right box : \the\dp\hv@rightBox}%
\ifdim\dp\hv@rightBox > \z@
\raisebox{\depth}{\usebox\hv@rightBox}%
\else
\usebox\hv@rightBox
\fi
\c@hv@tempCNTfigB=\numexpr\c@figure-1\relax
\c@hv@tempCNTtabB=\numexpr\c@table-1\relax
\ifx\hv@label\@empty\else
\ifx\hv@floatType\hv@figure
\refstepcounter{hv@tempCNTfigB}%
\else
\refstepcounter{hv@tempCNTtabB}% before caption
\fi
\label{\hv@label-2}%
\fi
\ifx\hv@caption@format@temp\@empty\else
\expandafter\captionsetup\expandafter{\hv@caption@format@temp}%
\fi
\c@figure=\numexpr\c@hv@tempCNTfigB-1\relax
\c@table=\numexpr\c@hv@tempCNTtabB-1\relax
\ifnum#1>\z@ % caption on the right
\hvfloat@typeout{doublePage: capAngle=\hvSet@capAngle}%
\ifnum\hvSet@capAngle > \z@
\hspace{\hv@floatCapSep}%
\rlap{\rotatebox{\hvSet@capAngle}{\parbox[b]{\the\dimexpr\ht\hvObjectBox+\dp\hvObjectBox}{%
\abovecaptionskip=0pt% local inside parbox
\belowcaptionskip=0pt% local inside parbox
\ifx\relax\hv@shortCap\relax
\caption{\hv@longCap}%
\else
\caption[\hv@shortCap]{\hv@longCap}%
\fi
}}}%
\ifx\hv@label\@empty\else\label{\hv@label-cap}\fi
\else
\hv@tempWidthB=\dimexpr\textwidth-\wd\hv@rightBox-\hvSet@bindCorrection+1in+\oddsidemargin-\hv@floatCapSep\relax
\hspace{\hv@floatCapSep}%
\rlap{\parbox[b][\dimexpr\ht\hv@rightBox+\dp\hv@rightBox][\hv@@capVPos]{\hv@tempWidthB}{%
\abovecaptionskip=0pt % local inside parbox
\belowcaptionskip=0pt % local inside parbox
\ifx\hv@shortCap\@empty
\caption{\hv@longCap}%
\else
\caption[\hv@shortCap]{\hv@longCap}%
\fi
}}%
\ifx\hv@label\@empty\else\label{\hv@label-cap}\fi
\fi
\else % #1 = 0 caption below
\ifx\relax\hv@shortCap\relax
\caption{\hv@longCap}%
\else
\caption[\hv@shortCap]{\hv@longCap}%
\fi
\ifx\hv@label\@empty\else\label{\hv@label-cap}\fi
\fi
\vspace{0pt}%
\hv@reset@noverticalSpace
\hvfloat@typeout{>>>doublePage: end with right side of the object \hv@floatObject}%
\end{\hv@floatType*}
}
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