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Code Issues Releases Wiki Activity

Preserve transparency in thumbnails

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Summary: Add some code from a random guy on the Internet.

Test Plan: Upload a PNG file with alpha; check thumbnail.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T1646

Differential Revision: https://secure.phabricator.com/D3258
This commit is contained in:
Alan Huang 2012-08-13 12:31:13 -07:00
parent 1379876db7
commit 29e176fe53
1 changed files with 2 additions and 0 deletions
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2
src/applications/files/PhabricatorImageTransformer.php
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@ -88,6 +88,8 @@ final class PhabricatorImageTransformer {
$scale = min($x / $dx, $y / $dy);
$dst = imagecreatetruecolor($dx, $dy);
imagesavealpha($dst, true);
imagefill($dst, 0, 0, imagecolorallocatealpha($dst, 0, 0, 0, 127));
// If we need to chop off some pixels, chop them off from the sides instead
// of scaling in on <0, 0>.