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added \graphicspath support to \pgfdeclareimage #980

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added \graphicspath support to \pgfdeclareimage #980

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3 changes: 3 additions & 0 deletions doc/generic/pgf/text-en/pgfmanual-en-base-images.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,9 @@ \subsection{Declaring an Image}
will automatically tried. For PostScript, the extensions |.eps|, |.epsi|,
and |.ps| will be tried.

You may use |\graphicspath| to specify a list of directories in which to
search for graphics files.

The following options are possible:
%
\begin{itemize}
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33 changes: 31 additions & 2 deletions tex/generic/pgf/basiclayer/pgfcoreimage.code.tex
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Expand Up @@ -36,10 +36,10 @@
% If page= parameter is not empty, try that file first:
\ifx\pgf@imagepage\pgfutil@empty%
\else%
\expandafter\pgf@findfile\pgfsys@imagesuffixlist:+{#3.page\pgf@imagepage}%
\expandafter\pgf@findimage\pgfsys@imagesuffixlist:+{#3.page\pgf@imagepage}%
\fi%
\ifx\pgf@filename\pgfutil@empty%
\expandafter\pgf@findfile\pgfsys@imagesuffixlist:+{#3}%
\expandafter\pgf@findimage\pgfsys@imagesuffixlist:+{#3}%
\else%
\pgfkeys{/pgf/images/page=}% make page empty
\fi%
Expand Down Expand Up @@ -89,6 +89,35 @@
\pgf@findfile#2+{#3}%
\fi}}

% Similar to \pgf@findfile but for images.
% Additionally loops over directories in \Ginput@path.
\def\pgf@findimage#1:#2+#3{%
\ifx\Ginput@path\@undefined
\let\Ginput@path\@empty
\fi
\ifx\Ginput@path\@empty
% Graphics search path is empty.
% Pass the arguments to the base command as is.
\@pgf@findfile{#1}:{#2}+{#3}%
\else
\let\pgf@cur\@secondoftwo
\expandafter\@tfor\expandafter
\pgf@cur\expandafter:\expandafter=\Ginput@path\do{%
\def\pgf@curfilename{\pgf@cur/#3#1}%
\pgfutil@IfFileExists{\pgf@curfilename}%
{\xdef\pgf@filename{\pgf@curfilename}%
% Found the file. We're done searching.
\@break@tfor
}%
{\def\pgf@mightbeempty{#2}%
\ifx\pgf@mightbeempty\pgfutil@empty\else%
\pgf@findimage#2+{#3}%
\fi
}%
}%
\fi
}%

% #1: image name
% #2: file name
\def\pgf@declaredraftimage#1#2{%
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