<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">#!/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 2.00;

my %imgdefaults;

sub import { #{{{
	hook(type =&gt; "preprocess", id =&gt; "img", call =&gt; \&amp;preprocess, scan =&gt; 1);
} #}}}

sub preprocess (@) { #{{{
	my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
	my %params=@_;

	if (exists $imgdefaults{$params{page}}) {
		foreach my $key (keys %{$imgdefaults{$params{page}}}) {
			if (! exists $params{$key}) {
				$params{$key}=$imgdefaults{$params{page}}-&gt;{$key};
			}
		}
	}

	if (! exists $params{size}) {
		$params{size}='full';
	}

	if ($image eq 'defaults') {
		$imgdefaults{$params{page}} = \%params;
		return '';
	}

	push @{$links{$params{page}}}, $image;
	# optimisation: detect scan mode, and avoid generating the image
	if (! defined wantarray) {
		return;
	}

	my $file = bestlink($params{page}, $image);

	my $dir = $params{page};
	my $base = IkiWiki::basename($file);

	eval q{use Image::Magick};
	error($@) if $@;
	my $im = Image::Magick-&gt;new;
	my $imglink;
	my $r;

	if ($params{size} ne 'full') {
		my ($w, $h) = ($params{size} =~ /^(\d+)x(\d+)$/);
		return "[[img ".sprintf(gettext('bad size "%s"'), $params{size})."]]"
			unless (defined $w &amp;&amp; defined $h);

		my $outfile = "$config{destdir}/$dir/${w}x${h}-$base";
		$imglink = "$dir/${w}x${h}-$base";
		
		will_render($params{page}, $imglink);

		if (-e $outfile &amp;&amp; (-M srcfile($file) &gt;= -M $outfile)) {
			$r = $im-&gt;Read($outfile);
			return "[[img ".sprintf(gettext("failed to read %s: %s"), $outfile, $r)."]]" if $r;
		}
		else {
			$r = $im-&gt;Read(srcfile($file));
			return "[[img ".sprintf(gettext("failed to read %s: %s"), $file, $r)."]]" if $r;

			$r = $im-&gt;Resize(geometry =&gt; "${w}x${h}");
			return "[[img ".sprintf(gettext("failed to resize: %s"), $r)."]]" if $r;

			# don't actually write file in preview mode
			if (! $params{preview}) {
				my @blob = $im-&gt;ImageToBlob();
				writefile($imglink, $config{destdir}, $blob[0], 1);
			}
			else {
				$imglink = $file;
			}
		}
	}
	else {
		$r = $im-&gt;Read(srcfile($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";
	}

	if (! defined($im-&gt;Get("width")) || ! defined($im-&gt;Get("height"))) {
		return "[[img ".sprintf(gettext("failed to determine size of image %s"), $file)."]]";
	}

	my $imgtag='&lt;img src="'.$imgurl.
		'" alt="'.(exists $params{alt} ? $params{alt} : '').
		'" width="'.$im-&gt;Get("width").
		'" height="'.$im-&gt;Get("height").'"'.
		(exists $params{title} ? ' title="'.$params{title}.'"' : '').
		(exists $params{class} ? ' class="'.$params{class}.'"' : '').
		(exists $params{id} ? ' id="'.$params{id}.'"' : '').
		' /&gt;';

	if (! defined $params{link} || lc($params{link}) eq 'yes') {
		$imgtag='&lt;a href="'.$fileurl.'"&gt;'.$imgtag.'&lt;/a&gt;';
	}
	elsif ($params{link} =~ /^\w+:\/\//) {
		$imgtag='&lt;a href="'.$params{link}.'"&gt;'.$imgtag.'&lt;/a&gt;';
	}
	elsif (length bestlink($params{page}, $params{link})) {
		add_depends($params{page}, $params{link});
		$imgtag=htmllink($params{page}, $params{destpage},
			$params{link}, linktext =&gt; $imgtag,
			noimageinline =&gt; 1);
	}

	if (exists $params{caption}) {
		return '&lt;table class="img"&gt;'.
			'&lt;caption&gt;'.$params{caption}.'&lt;/caption&gt;'.
			'&lt;tr&gt;&lt;td&gt;'.$imgtag.'&lt;/td&gt;&lt;/tr&gt;'.
			'&lt;/table&gt;';
	}
	else {
		return $imgtag;
	}
} #}}}

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