PHPWord/src/PhpWord/Writer/HTML/Element/Image.php

105 lines
3.2 KiB
PHP

<?php
/**
* PHPWord
*
* @link https://github.com/PHPOffice/PHPWord
* @copyright 2014 PHPWord
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
namespace PhpOffice\PhpWord\Writer\HTML\Element;
use PhpOffice\PhpWord\Element\Image as ImageElement;
use PhpOffice\PhpWord\Writer\HTML\Style\Image as ImageStyleWriter;
/**
* Image element HTML writer
*
* @since 0.10.0
*/
class Image extends Element
{
/**
* Write image
*
* @return string
*/
public function write()
{
$html = '';
if (!$this->element instanceof ImageElement) {
return $html;
}
if (!$this->parentWriter->isPdf()) {
$imageData = $this->getBase64ImageData($this->element);
if (!is_null($imageData)) {
$styleWriter = new ImageStyleWriter($this->element->getStyle());
$style = $styleWriter->write();
$html = "<img border=\"0\" style=\"{$style}\" src=\"{$imageData}\"/>";
if (!$this->withoutP) {
$html = "<p>{$html}</p>" . PHP_EOL;
}
}
}
return $html;
}
/**
* Get Base64 image data
*
* @return string|null
*/
private function getBase64ImageData(ImageElement $element)
{
$source = $element->getSource();
$imageType = $element->getImageType();
$imageData = null;
$imageBinary = null;
$actualSource = null;
// Get actual source from archive image or other source
// Return null if not found
if ($element->getSourceType() == ImageElement::SOURCE_ARCHIVE) {
$source = substr($source, 6);
list($zipFilename, $imageFilename) = explode('#', $source);
$zipClass = \PhpOffice\PhpWord\Settings::getZipClass();
$zip = new $zipClass();
if ($zip->open($zipFilename) !== false) {
if ($zip->locateName($imageFilename)) {
$zip->extractTo($this->parentWriter->getTempDir(), $imageFilename);
$actualSource = $this->parentWriter->getTempDir() . DIRECTORY_SEPARATOR . $imageFilename;
}
}
$zip->close();
} else {
$actualSource = $source;
}
if (is_null($actualSource)) {
return null;
}
// Read image binary data and convert into Base64
if ($element->getSourceType() == ImageElement::SOURCE_GD) {
$imageResource = call_user_func($element->getImageCreateFunction(), $actualSource);
ob_start();
call_user_func($element->getImageFunction(), $imageResource);
$imageBinary = ob_get_contents();
ob_end_clean();
} else {
if ($fileHandle = fopen($actualSource, 'rb', false)) {
$imageBinary = fread($fileHandle, filesize($actualSource));
fclose($fileHandle);
}
}
if (!is_null($imageBinary)) {
$base64 = chunk_split(base64_encode($imageBinary));
$imageData = 'data:' . $imageType . ';base64,' . $base64;
}
return $imageData;
}
}