PhpOffice\PhpSpreadsheet\Writer\Html::writeImageInCell()

Complexity

Conditions	14
Paths	43

Size

Total Lines	79
Code Lines	42

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	43
CRAP Score	14

Importance

Changes

0

<?php
    private function writeImageInCell(string $coordinates): string
    {
        // Construct HTML
        $html = '';

        // Write images
        $drawing = $this->sheetDrawings[$coordinates] ?? null;
        if ($drawing !== null) {
            $opacity = '';
            $opacityValue = $drawing->getOpacity();
            if ($opacityValue !== null) {
                $opacityValue = $opacityValue / 100000;
                if ($opacityValue >= 0.0 && $opacityValue <= 1.0) {
                    $opacity = "opacity:$opacityValue; ";
                }
            }
            $filedesc = $drawing->getDescription();
            $filedesc = $filedesc ? htmlspecialchars($filedesc, ENT_QUOTES) : 'Embedded image';
            if ($drawing instanceof Drawing && $drawing->getPath() !== '') {
                $filename = $drawing->getPath();

                // Strip off eventual '.'
                $filename = (string) preg_replace('/^[.]/', '', $filename);

                // Prepend images root
                $filename = $this->getImagesRoot() . $filename;

                // Strip off eventual '.' if followed by non-/
                $filename = (string) preg_replace('@^[.]([^/])@', '$1', $filename);

                // Convert UTF8 data to PCDATA
                $filename = htmlspecialchars($filename, Settings::htmlEntityFlags());

                $html .= PHP_EOL;
                $imageData = self::winFileToUrl($filename, $this instanceof Pdf\Mpdf);

                if ($this->embedImages || str_starts_with($imageData, 'zip://')) {
                    $imageData = 'data:,';
                    $picture = @file_get_contents($filename);
                    if ($picture !== false) {
                        $mimeContentType = (string) @mime_content_type($filename);
                        if (str_starts_with($mimeContentType, 'image/')) {
                            // base64 encode the binary data
                            $base64 = base64_encode($picture);
                            $imageData = 'data:' . $mimeContentType . ';base64,' . $base64;
                        }
                    }
                }

                $html .= '<img style="' . $opacity . 'position: absolute; z-index: 1; left: '
                    . $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: '
                    . $drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="'
                    . $imageData . '" alt="' . $filedesc . '" />';
            } elseif ($drawing instanceof MemoryDrawing) {
                $imageResource = $drawing->getImageResource();
                if ($imageResource) {
                    ob_start(); //  Let's start output buffering.
                    imagepng($imageResource); //  This will normally output the image, but because of ob_start(), it won't.
                    $contents = (string) ob_get_contents(); //  Instead, output above is saved to $contents
                    ob_end_clean(); //  End the output buffer.

                    $dataUri = 'data:image/png;base64,' . base64_encode($contents);

                    //  Because of the nature of tables, width is more important than height.
                    //  max-width: 100% ensures that image doesnt overflow containing cell
                    //    However, PR #3535 broke test
                    //    25_In_memory_image, apparently because
                    //    of the use of max-with. In addition,
                    //    non-memory-drawings don't use max-width.
                    //    Its use here is suspect and is being eliminated.
                    //  width: X sets width of supplied image.
                    //  As a result, images bigger than cell will be contained and images smaller will not get stretched
                    $html .= '<img alt="' . $filedesc . '" src="' . $dataUri . '" style="' . $opacity . 'width:' . $drawing->getWidth() . 'px;left: '
                        . $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px;position: absolute; z-index: 1;" />';
                }
            }
        }

        return $html;
    }