提交代码

vendor/phpoffice/phpspreadsheet/samples/Chart/35_Chart_render.php

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+<?php
+
+use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Settings;
+
+require __DIR__ . '/../Header.php';
+
+// Change these values to select the Rendering library that you wish to use
+Settings::setChartRenderer(\PhpOffice\PhpSpreadsheet\Chart\Renderer\JpGraph::class);
+
+$inputFileType = 'Xlsx';
+$inputFileNames = __DIR__ . '/../templates/32readwrite*[0-9].xlsx';
+
+if ((isset($argc)) && ($argc > 1)) {
+    $inputFileNames = [];
+    for ($i = 1; $i < $argc; ++$i) {
+        $inputFileNames[] = __DIR__ . '/../templates/' . $argv[$i];
+    }
+} else {
+    $inputFileNames = glob($inputFileNames);
+}
+foreach ($inputFileNames as $inputFileName) {
+    $inputFileNameShort = basename($inputFileName);
+
+    if (!file_exists($inputFileName)) {
+        $helper->log('File ' . $inputFileNameShort . ' does not exist');
+
+        continue;
+    }
+
+    $helper->log("Load Test from $inputFileType file " . $inputFileNameShort);
+
+    $reader = IOFactory::createReader($inputFileType);
+    $reader->setIncludeCharts(true);
+    $spreadsheet = $reader->load($inputFileName);
+
+    $helper->log('Iterate worksheets looking at the charts');
+    foreach ($spreadsheet->getWorksheetIterator() as $worksheet) {
+        $sheetName = $worksheet->getTitle();
+        $helper->log('Worksheet: ' . $sheetName);
+
+        $chartNames = $worksheet->getChartNames();
+        if (empty($chartNames)) {
+            $helper->log('    There are no charts in this worksheet');
+        } else {
+            natsort($chartNames);
+            foreach ($chartNames as $i => $chartName) {
+                $chart = $worksheet->getChartByName($chartName);
+                if ($chart->getTitle() !== null) {
+                    $caption = '"' . implode(' ', $chart->getTitle()->getCaption()) . '"';
+                } else {
+                    $caption = 'Untitled';
+                }
+                $helper->log('    ' . $chartName . ' - ' . $caption);
+
+                $jpegFile = $helper->getFilename('35-' . $inputFileNameShort, 'png');
+                if (file_exists($jpegFile)) {
+                    unlink($jpegFile);
+                }
+
+                try {
+                    $chart->render($jpegFile);
+                    $helper->log('Rendered image: ' . $jpegFile);
+                } catch (Exception $e) {
+                    $helper->log('Error rendering chart: ' . $e->getMessage());
+                }
+            }
+        }
+    }
+
+    $spreadsheet->disconnectWorksheets();
+    unset($spreadsheet);
+}
+
+$helper->log('Done rendering charts as images');