84 lines
2.1 KiB
Perl
84 lines
2.1 KiB
Perl
#!/usr/bin/perl
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# Ikiwiki enhanced image handling plugin
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# Christian Mock cm@tahina.priv.at 20061002
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package IkiWiki::Plugin::img;
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use warnings;
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use strict;
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use IkiWiki;
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use Image::Magick;
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my %imgdefaults;
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sub import { #{{{
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hook(type => "preprocess", id => "img", call => \&preprocess);
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} #}}}
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sub preprocess (@) { #{{{
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my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
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my %params=@_;
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if (! exists $imgdefaults{$params{page}}) {
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$imgdefaults{$params{page}} = {};
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}
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my $size = $params{size} || $imgdefaults{$params{page}}->{size} || 'full';
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my $alt = $params{alt} || $imgdefaults{$params{page}}->{alt} || '';
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if ($image eq 'defaults') {
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$imgdefaults{$params{page}} = {
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size => $size,
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alt => $alt,
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};
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return '';
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}
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add_depends($params{page}, $image);
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my $file = bestlink($params{page}, $image) || return "[[img $image not found]]";
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my $dir = IkiWiki::dirname($file);
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my $base = IkiWiki::basename($file);
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my $im = Image::Magick->new;
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my $imglink;
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my $r;
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if ($size ne 'full') {
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my ($w, $h) = ($size =~ /^(\d+)x(\d+)$/);
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return "[[img bad size \"$size\"]]" unless (defined $w && defined $h);
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my $outfile = "$config{destdir}/$dir/${w}x${h}-$base";
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$imglink = "$dir/${w}x${h}-$base";
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will_render($params{page}, $imglink);
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if (-e $outfile && (-M srcfile($file) >= -M $outfile)) {
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$r = $im->Read($outfile);
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return "[[img failed to read $outfile: $r]]" if $r;
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}
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else {
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$r = $im->Read(srcfile($file));
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return "[[img failed to read $file: $r]]" if $r;
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$r = $im->Resize(geometry => "${w}x${h}");
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return "[[img failed to resize: $r]]" if $r;
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my @blob = $im->ImageToBlob();
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writefile($imglink, $config{destdir}, $blob[0], 1);
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}
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}
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else {
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$r = $im->Read(srcfile($file));
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return "[[img failed to read $file: $r]]" if $r;
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$imglink = $file;
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}
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add_depends($imglink, $params{page});
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return '<a href="'.
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IkiWiki::abs2rel($file, IkiWiki::dirname($params{destpage})).
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'"><img src="'.
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IkiWiki::abs2rel($imglink, IkiWiki::dirname($params{destpage})).
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'" alt="'.$alt.'" width="'.$im->Get("width").
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'" height="'.$im->Get("height").'" /></a>';
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} #}}}
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1;
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