graphics.sty

<..graphics.4ht ..>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% graphics.4ht                          2014-07-12-22:36 %
% Copyright (C) 1997--2009       Eitan M. Gurari         %
<.TeX4ht copyright .>

    <.fix graphics .>
\Hinput{graphics}
\endinput
-_-_-

<..fix graphics ..>
\expandafter\let\csname includegraphics \endcsname\includegraphics
\def\includegraphics{\expandafter\protect\csname includegraphics \endcsname}
-_-_-

<..fix graphics ..>+
\def\grp:warning#1{\no:bound#1(no BoundingBox)//\:warning{#1}}
\def\no:bound#1(no BoundingBox)#2//{\gdef\noBoundingBox{#2}\ifx
    \noBoundingBox\empty \global\let\noBoundingBox\:UnDef\fi}
\let\:tempc=\Gin@setfile
\pend:defIII\:tempc{\a:graphics
     \global\let\noBoundingBox\:UnDef
     \let\@latex@error=\grp:warning \let\@ehc=\empty}
\append:defIII\:tempc{\b:graphics\grf:gobble\leavevmode grf:gobble}
\HLet\Gin@setfile=\:tempc
\NewConfigure{graphics*}[2]{%
    \expandafter\ifx \csname :.#1\endcsname\relax
       \pend:defIII\n:Gin@setfile:{\csname :.#1\endcsname}%
    \fi
    \def\:temp{#2}\ifx \:temp\empty
      \expandafter\let\csname :.#1\endcsname\:UnDef
    \else
      \expandafter\def\csname :.#1\endcsname{\def\:temp{.#1}%
         \ifx \:temp\Gin@ext  \let\a:graphics=\relax
            \def\G:cnfg{#2}\expandafter\grf:gobble \fi}%
    \fi }
\NewConfigure{graphics}{2}
\def\grf:gobble#1\leavevmode#2grf:gobble{%
    \PictureOff#1\PictureOn \G:cnfg \let\G:cnfg=\relax}
\let\G:cnfg=\relax
-_-_-

For figures of specific exytensions, we can tailor a configuration with the command ‘\Configure{graphics*}{extension}{action}’. For the other figures, we can use the configuration ‘\Configure{graphics}{before}{aafter}’.

\Configure{epsfig}
  {\Configure{graphics*}
    {eps}
    {\Needs{"eps22jpg ####1 ####2"}%
     \Needs{File:           ####2}%
     \def\temp{[####2]}%
     \Picture       [\temp]{####2}}}
{}

\Configure{graphics*}
    {eps}
    { \Needs{"convert -crop 0x0 -density 110x110 -transparent
                ’\#FFFFFF’ ##3 \csname Gin@base\endcsname.gif"}
      \Picture[pict]{\csname Gin@base\endcsname.gif}
    }

\Configure{graphics*}
    {gif}
    {\Picture[pict]{\csname Gin@base\endcsname.gif}}

\def\Ginclude@graphics#1{\Tg<includegraphics file="#1"/>}
\def\Gin@setfile#1#2#3{%
  \ifx\\#2\\\Gread@false\fi
  \ifGin@bbox\else
    \ifGread@
      \csname Gread@%
         \expandafter\ifx\csname Gread@#1\endcsname\relax
           eps%
         \else
           #1%
         \fi
      \endcsname{\Gin@base#2}%
    \else
      \Gin@nosize{#3}%
    \fi
  \fi
  \Gin@viewport@code
  \Gin@nat@height\Gin@ury bp%
  \advance\Gin@nat@height-\Gin@lly bp%
  \Gin@nat@width\Gin@urx bp%
  \advance\Gin@nat@width-\Gin@llx bp%
  \Gin@req@sizes
  \Tg<includegraphics file="#3" width="\the\Gin@req@width"
        height="\the\Gin@req@height"/>
}

66.8 graphics.sty