add pagenumber parameter

[ikiwiki.git] / IkiWiki / Plugin / img.pm

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index c861d707527df787de6224a82704a7805a576568..fe0ba2ef1388dd5f741a170b9521a7f4b57c2adf 100644 (file)
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -65,12 +65,17 @@ sub preprocess (@) {
        my $dir = $params{page};
        my $base = IkiWiki::basename($file);
        my $issvg = $base=~s/\.svg$/.png/i;
+       my $ispdf = $base=~s/\.pdf$/.png/i;
+       my $pagenumber = exists($params{pagenumber}) ? int($params{pagenumber}) : 0;
+       if ($pagenumber != 0) {
+               $base = "p$pagenumber-$base";
+       }
 
        eval q{use Image::Magick};
        error gettext("Image::Magick is not installed") if $@;
        my $im = Image::Magick->new();
        my $imglink;
-       my $r = $im->Read($srcfile);
+       my $r = $im->Read("$srcfile\[$pagenumber]");
        error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
        
        my ($dwidth, $dheight);
@@ -124,7 +129,7 @@ sub preprocess (@) {
                                # don't actually write resized file in preview mode;
                                # rely on width and height settings
                                if (! $params{preview}) {
-                                       $im->set($issvg ? (magick => 'png') : ());
+                                       $im->set(($issvg || $ispdf) ? (magick => 'png') : ());
                                        my @blob = $im->ImageToBlob();
                                        writefile($imglink, $config{destdir}, $blob[0], 1);
                                }