mirror of
https://github.com/PHPOffice/PhpSpreadsheet.git
synced 2026-09-22 08:09:15 +00:00
Adrien Crivelli
ec4098c8fd
While we might never be able to have 100% of our code strict, we can at the very least do it for all of our tests. This ensures that our tests are using our API with the types as intended by the test author, and not silently be cast to what our API requires.
92 lines
3.1 KiB
PHP
92 lines
3.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpOffice\PhpSpreadsheetTests\Writer\Xlsx;
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use GdImage;
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use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XlsxReader;
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use PhpOffice\PhpSpreadsheet\Shared\File;
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
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use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
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use PhpOffice\PhpSpreadsheet\Writer\Xlsx as XlsxWriter;
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use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
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class MemoryDrawingTest extends AbstractFunctional
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{
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private string $outfile = '';
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protected function tearDown(): void
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{
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if ($this->outfile !== '') {
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unlink($this->outfile);
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$this->outfile = '';
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}
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}
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/**
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* Test save and load XLSX file with transparent png.
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*/
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public function testIssue3624(): void
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{
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$spreadsheet = new Spreadsheet();
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$sheet = $spreadsheet->getActiveSheet();
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$contents = file_get_contents('tests/data/Writer/XLSX/issue.3624b.png');
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$stamp = MemoryDrawing::fromString("$contents");
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$stamp->setName('Stamp');
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$stamp->setHeight(120);
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$stamp->setCoordinates('A2');
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$stamp->setWorksheet($sheet);
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$this->outfile = File::temporaryFilename();
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$writer = new XlsxWriter($spreadsheet);
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$writer->save($this->outfile);
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$spreadsheet->disconnectWorksheets();
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$reader = new XlsxReader();
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$reloadedSpreadsheet = $reader->load($this->outfile);
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$rsheet = $reloadedSpreadsheet->getActiveSheet();
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$drawings = $rsheet->getDrawingCollection();
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self::assertCount(1, $drawings);
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foreach ($drawings as $drawing) {
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if ($drawing instanceof Drawing) {
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$path = $drawing->getPath();
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$contents = file_get_contents($path);
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$gdImage = imagecreatefromstring("$contents");
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if ($gdImage === false) {
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self::fail('unexpected failure in imagecreatefromstring');
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} else {
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self::assertTrue(self::checkTransparent($gdImage));
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}
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} else {
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self::fail('Unexpected drawing not in Drawing class');
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}
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}
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$reloadedSpreadsheet->disconnectWorksheets();
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}
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/**
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* Determine if image uses transparency.
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*
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* @see https://stackoverflow.com/questions/5495275/how-to-check-if-a-png-image-has-transparency-using-gd
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*/
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private static function checkTransparent(GdImage $im): bool
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{
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$width = imagesx($im); // Get the width of the image
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$height = imagesy($im); // Get the height of the image
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// We run the image pixel by pixel and as soon as we find a transparent pixel we stop and return true.
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for ($i = 0; $i < $width; ++$i) {
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for ($j = 0; $j < $height; ++$j) {
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$rgba = imagecolorat($im, $i, $j);
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if (($rgba & 0x7F000000) >> 24) {
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return true;
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}
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}
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}
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// If we dont find any pixel the function will return false.
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return false;
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}
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}
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