diff options
Diffstat (limited to 'IkiWiki')
| -rw-r--r-- | IkiWiki/Plugin/img.pm | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm index 5f97e3810..9ae85c4e6 100644 --- a/IkiWiki/Plugin/img.pm +++ b/IkiWiki/Plugin/img.pm @@ -65,6 +65,8 @@ sub preprocess (@) { my $imglink; my $r; + my ($dwidth, $dheight); + if ($params{size} ne 'full') { add_depends($params{page}, $image); @@ -86,7 +88,15 @@ sub preprocess (@) { $r = $im->Read($srcfile); error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r; - $r = $im->Resize(geometry => "${w}x${h}"); + # don't resize any larger + my ($rw, $rh) = ($w, $h); + if ((length $rw && $rw > $im->Get("width")) || + (length $rh && $rh > $im->Get("height"))) { + $rw=$im->Get("width"); + $rh=$im->Get("height"); + } + + $r = $im->Resize(geometry => "${rw}x${rh}"); error sprintf(gettext("failed to resize: %s"), $r) if $r; # don't actually write file in preview mode @@ -98,11 +108,34 @@ sub preprocess (@) { $imglink = $file; } } + + # since we don't really resize larger, set the display + # size, so the browser can scale the image up if necessary + if (length $w && length $h) { + ($dwidth, $dheight)=($w, $h); + } + # avoid division by zero on 0x0 image + elsif ($im->Get("width") == 0 || $im->Get("height") == 0) { + ($dwidth, $dheight)=(0, 0); + } + # calculate unspecified size from the other one, preserving + # aspect ratio + elsif (length $w) { + $dwidth=$w; + $dheight=$w / $im->Get("width") * $im->Get("height"); + } + elsif (length $h) { + $dheight=$h; + $dwidth=$h / $im->Get("height") * $im->Get("width"); + } + } else { $r = $im->Read($srcfile); error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r; $imglink = $file; + $dwidth = $im->Get("width"); + $dheight = $im->Get("height"); } my ($fileurl, $imgurl); @@ -120,8 +153,8 @@ sub preprocess (@) { } my $imgtag='<img src="'.$imgurl. - '" width="'.$im->Get("width"). - '" height="'.$im->Get("height").'"'. + '" width="'.$dwidth. + '" height="'.$dheight.'"'. (exists $params{alt} ? ' alt="'.$params{alt}.'"' : ''). (exists $params{title} ? ' title="'.$params{title}.'"' : ''). (exists $params{align} ? ' align="'.$params{align}.'"' : ''). |