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