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\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{hvfloat}[2017/01/28 rotating of floating objects]
%%
%% IMPORTANT NOTICE:
%%
%% This is file `hvfloat.sty',
%%
%% Herbert Voss <hvoss@tug.de>
%%
%% 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.
%%
%% DESCRIPTION:
%%   `hvfloat' offers rotating of captions and objects for floats
%%
\def\fileversion{1.2b}
\def\filedate{2017/12/22}
\message{`hvfloat' v\fileversion, \filedate\space (Herbert Voss)}
%
\newif\ifhv@fbox \hv@fboxfalse
\DeclareOption{fbox}{\hv@fboxtrue\setlength{\fboxsep}{1pt}}
\ProcessOptions
%
\RequirePackage{graphicx}
\RequirePackage{keyval}
\RequirePackage{caption}
%
\newlength\hvObjectWidth
\newlength\hvCapWidth
\newlength\hvMaxCapWidth
\newsavebox\hvObjectBox
\newsavebox\hvCaptionBox
\newsavebox\hvOBox
%
\newif\ifhv@useOBox
\newif\ifhv@nonFloat
\newif\ifhv@onlyText

\def\hv@figure{figure}
%
\def\hvSet@boolkey#1#2{\csname hv@#2\ifx\relax#1\relax true\else#1\fi\endcsname}
%
\define@key{hvSet}{floatPos}[htbp]{%		LaTeX's position parameters htbp
	\def\hvSet@floatPos{#1}%
}
\define@key{hvSet}{rotAngle}[0]{%		rotates caption AND image together
	\def\hvSet@rotAngle{#1}%
}
\define@key{hvSet}{capWidth}[.8]{%		object (w)idth)|object (h)eight|<scale of \columnwidth>
	\def\hvSet@capWidth{#1}%
}
\define@key{hvSet}{capAngle}[0]{%		-360..+360
	\def\hvSet@capAngle{#1}%
}
\define@key{hvSet}{capPos}[b]{%			(l)eft|(b)ottom|(t)op|(r)ight
	\def\hvSet@capPos{#1}%			it is relativ to the object
}
\define@key{hvSet}{capVPos}[c]{%		(b)ottom|(c)enter|(t)op
	\def\hvSet@capVPos{#1}%			it is relativ to the object
}
\define@key{hvSet}{objectPos}[c]{%		(l)eft|(c)enter|(r)ight
	\def\hvSet@objectPos{#1}%		it is relativ to the document
}
\define@key{hvSet}{objectAngle}[0]{%		-360..+360
	\def\hvSet@objectAngle{#1}%
}
\define@key{hvSet}{floatCapSep}[5]{%		a width with the unit pt
	\def\hvSet@floatCapSep{#1}%
}
\define@key{hvSet}{useOBox}[false]{%		use of the hvOBox contents
	\lowercase{\hvSet@boolkey{#1}}{useOBox}%
}
\define@key{hvSet}{nonFloat}[false]{%		Do not use float environment
	\lowercase{\hvSet@boolkey{#1}}{nonFloat}%
}
\define@key{hvSet}{onlyText}[false]{%		Write the caption only as text
	\lowercase{\hvSet@boolkey{#1}}{onlyText}%
}
%
\newcommand{\setDefaults}{%
\setkeys{hvSet}{%
	floatPos=htbp, rotAngle=0, capWidth=.8, capAngle=0,
	capPos=b, capVPos=c, objectPos=c, objectAngle=0,
	floatCapSep=5, useOBox=false, nonFloat=false,
	onlyText=false}%
}
%
\def\hv@Top{t}
\def\hv@Bottom{b}
\def\hv@Right{r}
\def\hv@Left{l}
\def\hv@Center{c}
\def\hv@Width{w}
\def\hv@Height{h}
\def\hv@Zero{0}
%
\newlength{\hvAboveCaptionSkip}
\newlength{\hvBelowCaptionSkip}
\setlength{\belowcaptionskip}{\abovecaptionskip}% it is in latex.ltx = 0pt
\newcommand{\saveCaptionSkip}{%
	\setlength{\hvAboveCaptionSkip}{\abovecaptionskip}
	\setlength{\hvBelowCaptionSkip}{\belowcaptionskip}
	\setlength{\abovecaptionskip}{0pt}
	\setlength{\belowcaptionskip}{0pt}
}
\newcommand{\restoreCaptionSkip}{%
  \setlength\abovecaptionskip{\hvAboveCaptionSkip}
  \setlength\belowcaptionskip{\hvBelowCaptionSkip}
}
%
%
\newcommand{\figcaption}[2][]{\def\@captype{figure}%
  \ifx\relax#1\relax \caption{#2}\else\caption[#1]{#2}\fi}
\newcommand{\tabcaption}[2][]{\def\@captype{table}%
  \ifx\relax#1\relax \caption{#2}\else\caption[#1]{#2}\fi}
%
%
\def\hvFloat{\@ifnextchar[{\do@hvFloat}{\do@hvFloat[]}}
\def\do@hvFloat[#1]#2#3{%
  \setDefaults
  \ifx\relax#1\relax\else\setkeys{hvSet}{#1}\fi%
  \gdef\hv@floatType{#2}%
  \ifx\relax#2\relax \setkeys{hvSet}{nonFloat=true}\fi%
  \gdef\hv@floatObject{#3}%
  \@ifnextchar[{\do@@hvFloat}{\do@@hvFloat[]}%
}
\def\do@@hvFloat[#1]#2#3{%
  \def\hv@shortCap{#1}%
  \def\hv@longCap{#2}%
  \def\hv@label{#3}%
%\newcommand*{\hvFloat}[5][]{%
% [#1}: keyvalues
% #2: type  figure | table | ...
% #3: float contents
% [#4]: short caption
% #5: caption
% #6: label
% \setDefaults%
% \def\@tempa{#1}%
% \ifx\@tempa\empty\else\setkeys{hvSet}{#1}\fi% set options, only when not empty
  \def\@tempa{90}%
  \ifx\hvSet@rotAngle\@tempa \setlength{\hvMaxCapWidth}{\textheight}%
  \else                      \setlength{\hvMaxCapWidth}{\linewidth}%
  \fi
%
% First we save the object in \hvObjectBox
%
  \ifx\hvSet@objectAngle\hv@Zero % rotate the object?
    \savebox{\hvObjectBox}{\ifhv@useOBox\usebox{\hvOBox}\else\hv@floatObject\fi}%
  \else
    \savebox{\hvObjectBox}{%
    \rotatebox{\hvSet@objectAngle}{%
    \ifhv@useOBox\usebox{\hvOBox}\else\hv@floatObject\fi}}%
  \fi
  \setlength{\hvObjectWidth}{\wd\hvObjectBox}%
%
% Now we save the caption with its defined \hvCapWidth
%
  \ifx\hvSet@capWidth\hv@Width\setlength{\hvCapWidth}{\hvObjectWidth}%
  \else
    \ifx\hvSet@capWidth\hv@Height\setlength{\hvCapWidth}{\ht\hvObjectBox}%
    \else
      \setlength{\hvCapWidth}{\hvObjectWidth}%
      \ifx\hvSet@capPos\hv@Left\addtolength{\hvMaxCapWidth}{-\hvObjectWidth}\fi
      \ifx\hvSet@capPos\hv@Right\addtolength{\hvMaxCapWidth}{-\hvObjectWidth}\fi
      \ifdim\hvSet@capWidth\columnwidth<\hvMaxCapWidth
	\setlength{\hvCapWidth}{\hvSet@capWidth\columnwidth}%
      \else
	\setlength{\hvCapWidth}{\hvMaxCapWidth}%
      \fi
    \fi
  \fi
%
% now we have the object and the caption with the right
% rotated angles saved in boxes
%
  \def\fps@figure{\hvSet@floatPos}%
  \ifhv@nonFloat\begingroup%	Start the nonfloat part
  \else         \begin{\hv@floatType}%		Start the floating environment
  \fi
  \saveCaptionSkip% we put this space ourselve
  \ifx\hvSet@capAngle\hv@Width % need rotation?
    \sbox{\hvCaptionBox}{%
      \begin{minipage}[b]{\hvCapWidth}% minipage, to get hyphenation
        \ifhv@nonFloat
	  \ifhv@onlyText#2
  	  \else
	    \ifx\hv@floatType\hv@figure
	      \ifx\relax#1\relax \figcaption{#2}\else\figcaption[#1]{#2}\fi
	    \else
	      \ifx\relax#1\relax \tabcaption{#2}\else\tabcaption[#1]{#2}\fi
	    \fi
	  \fi
	\else
          \expandafter\ifx\expandafter\relax\hv@shortCap\relax \caption{#2}\else\caption[#1]{#2}\fi
	\fi
	\label{#3}%
      \end{minipage}%
    }%
  \else
    \sbox{\hvCaptionBox}{%
      \rotatebox{\hvSet@capAngle}{%
      \begin{minipage}[b]{\hvCapWidth}% minipage, to get hyphenation
	\ifhv@nonFloat
  	  \ifhv@onlyText#2
  	  \else
	    \ifx\hv@floatType\hv@figure 
	      \ifx\relax#1\relax \figcaption{#2}\else\figcaption[#1]{#2}\fi
	    \else
	      \ifx\relax#1\relax \tabcaption{#2}\else\tabcaption[#1]{#2}\fi
	    \fi
	  \fi
	\else
          \expandafter\ifx\expandafter\relax\hv@shortCap\relax \caption{#2}\else\caption[#1]{#2}\fi
        \fi
        \label{#3}%
      \end{minipage}%
      }%
    }%
  \fi%
%%
  \restoreCaptionSkip% save old values
  \ifx\hvSet@objectPos\hv@Right\raggedleft%
  \else
    \ifx\hvSet@objectPos\hv@Center
      \ifhv@nonFloat\hspace*{\fill}\else\centering\fi
    \fi
  \fi
%
% to rotate object and caption together, we save all in another box
% the caption comes first, if its on the left or the top
%
  \savebox{\@tempboxa}{%
  \ifx\hvSet@capPos\hv@Left  %  caption on left side
    \ifx\hvSet@capVPos\hv@Center
      \ifhv@fbox\fbox{\parbox{\wd\hvCaptionBox}{\usebox{\hvCaptionBox}}}%
      \else     \parbox{\wd\hvCaptionBox}{\usebox{\hvCaptionBox}}%
      \fi
    \hspace{\hvSet@floatCapSep pt}% capfloatsep
    \ifhv@fbox\fbox{\parbox{\wd\hvObjectBox}{\usebox{\hvObjectBox}}}%
    \else     \parbox{\wd\hvObjectBox}{\usebox{\hvObjectBox}}%
    \fi
  \else
    \ifx\hvSet@capVPos\hv@Top % caption at top
      \ifhv@fbox\fbox{\raisebox{-\height}{\usebox{\hvCaptionBox}}}%
      \else     \raisebox{-\height}{\usebox{\hvCaptionBox}}%
      \fi
      \hspace{\hvSet@floatCapSep pt}% capfloatsep
      \ifhv@fbox\fbox{\raisebox{-\height}{\usebox{\hvObjectBox}}}%
      \else     \raisebox{-\height}{\usebox{\hvObjectBox}}%
      \fi
    \else% caption on bottom
      \ifhv@fbox\fbox{\usebox{\hvCaptionBox}}%
                \else\usebox{\hvCaptionBox}%
      \fi%
      \hspace{\hvSet@floatCapSep pt}%
      \ifhv@fbox\fbox{\usebox{\hvObjectBox}}%
      \else     \usebox{\hvObjectBox}%
      \fi
    \fi
  \fi
  \else
				\ifx\hvSet@capPos\hv@Top
					\ifdim\wd\hvCaptionBox>\wd\hvObjectBox
						\begin{minipage}{\wd\hvCaptionBox}%
					\else
						\begin{minipage}{\wd\hvObjectBox}%
					\fi
					\centering
					\ifhv@fbox
						\fbox{\usebox{\hvCaptionBox}}\\[\hvBelowCaptionSkip]
						\fbox{\usebox{\hvObjectBox}}%
					\else
						\usebox{\hvCaptionBox}\\[\hvBelowCaptionSkip]
						\usebox{\hvObjectBox}%
					\fi
					\end{minipage}%
				\else
					\ifx\hvSet@capPos\hv@Bottom
						\ifdim\wd\hvCaptionBox>\wd\hvObjectBox
							\begin{minipage}{\wd\hvCaptionBox}
						\else
							\begin{minipage}{\wd\hvObjectBox}
						\fi
						\centering
						\ifhv@fbox
							\fbox{\usebox{\hvObjectBox}}\\[\hvAboveCaptionSkip]
							\fbox{\usebox{\hvCaptionBox}}
						\else
							\usebox{\hvObjectBox}\\[\hvAboveCaptionSkip]
							\usebox{\hvCaptionBox}
						\fi%
						\end{minipage}
					\else% the last option: put the caption on the right
						\ifx\hvSet@capVPos\hv@Center%
							\ifhv@fbox
								\fbox{\parbox{\wd\hvObjectBox}{\usebox{\hvObjectBox}}}
							\else
								\parbox{\wd\hvObjectBox}{\usebox{\hvObjectBox}}
							\fi%
							\hspace{\hvSet@floatCapSep pt}%
							\ifhv@fbox
								\fbox{\parbox{\wd\hvCaptionBox}{\usebox{\hvCaptionBox}}}%
							\else
								\parbox{\wd\hvCaptionBox}{\usebox{\hvCaptionBox}}
							\fi%
						\else%
							\ifx\hvSet@capVPos\hv@Top
								\ifhv@fbox
									\fbox{\raisebox{-\height}{\usebox{\hvObjectBox}}}%
								\else
									\raisebox{-\height}{\usebox{\hvObjectBox}}%
								\fi%
								\hspace{\hvSet@floatCapSep pt}%
								\ifhv@fbox
									\fbox{\raisebox{-\height}{\usebox{\hvCaptionBox}}}%
								\else
									\raisebox{-\height}{\usebox{\hvCaptionBox}}%
								\fi
							\else
								\ifhv@fbox
									\fbox{\usebox{\hvObjectBox}}%
								\else
									\usebox{\hvObjectBox}%
								\fi
								\hspace{\hvSet@floatCapSep pt}%
								\ifhv@fbox
									\fbox{\usebox{\hvCaptionBox}}%
								\else
									\usebox{\hvCaptionBox}%
								\fi%
							\fi%
						\fi
					\fi
				\fi
			\fi
		}% End savebox Object and caption
%
% now we rotate the object and caption, if needed
%
		\ifx\hvSet@rotAngle\hv@Zero
			\usebox{\@tempboxa}
		\else
			\rotatebox{\hvSet@rotAngle}{\usebox{\@tempboxa}}
		\fi
	\ifhv@nonFloat
		\ifx\hvSet@objectPos\hv@Center
			\ifhv@nonFloat
				\hspace{\fill}
			\fi
		\fi
		\endgroup%	End the nonfloat part
	\else
		\end{\hv@floatType}%	End the floating environment
	\fi
}
%
\newenvironment{hvFloatEnv}[1][\textwidth]
  {\minipage{#1}\center}
  {\endcenter\endminipage}
%
\endinput