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Merge pull request #779 from samsullivan/imagesavealpha 

Save PNG alpha information when using remote images.
This commit is contained in:
troosan 2018-02-09 17:16:03 +01:00 committed by GitHub
parent cf6319d7d4 f4ec74a4c5
commit fd127ef9bb
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2 changed files with 8 additions and 0 deletions
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4
src/PhpWord/Element/Image.php
View File

@ -334,6 +334,10 @@ class Image extends AbstractElement
// Read image binary data and convert to hex/base64 string
if ($this->sourceType == self::SOURCE_GD) {
$imageResource = call_user_func($this->imageCreateFunc, $actualSource);
if ($this->imageType === 'image/png') {
// PNG images need to preserve alpha channel information
imagesavealpha($imageResource, true);
}
ob_start();
call_user_func($this->imageFunc, $imageResource);
$imageBinary = ob_get_contents();

4
src/PhpWord/Writer/AbstractWriter.php
View File

@ -352,6 +352,10 @@ abstract class AbstractWriter implements WriterInterface
// Retrive GD image content or get local media
if (isset($element['isMemImage']) && $element['isMemImage']) {
$image = call_user_func($element['createFunction'], $element['source']);
if ($element['imageType'] === 'image/png') {
// PNG images need to preserve alpha channel information
imagesavealpha($image, true);
}
ob_start();
call_user_func($element['imageFunction'], $image);
$imageContents = ob_get_contents();