Files
oleibman b661d31887 Limited Support for Chart Titles as Formulas (#2971)
This is a start in addressing issue #2965 (and earlier issue #749). Chart Titles are usually entered as strings or Rich Text strings, and PhpSpreadsheet supports that. They can also be entered as formulas (typically a pointer to a cell with the title text), and, not only did PhpSpreadsheet not support that, it threw an exception when reading a spreadsheet that did so.

This change does:
- eliminate the exception
- set a static chart title when it can determine it from the Xml

This change does not:
- fully support dynamic titles (e.g. if you change the contents of the source cell, or delete or insert cells or rows or columns)
- permit the user to set the title to a formula
- allow the use of formulas when writing a chart title to a spreadsheet
- provide styling for titles when it has read them as a formula
2022-08-06 17:39:18 -07:00

43 lines
1.6 KiB
PHP

<?php
namespace PhpOffice\PhpSpreadsheetTests\Chart;
use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XlsxReader;
use PHPUnit\Framework\TestCase;
class Issue2965Test extends TestCase
{
private const DIRECTORY = 'tests' . DIRECTORY_SEPARATOR . 'data' . DIRECTORY_SEPARATOR . 'Reader' . DIRECTORY_SEPARATOR . 'XLSX' . DIRECTORY_SEPARATOR;
public function testPreliminaries(): void
{
$file = 'zip://';
$file .= self::DIRECTORY . 'issue.2965.xlsx';
$file .= '#xl/charts/chart1.xml';
$data = file_get_contents($file);
// confirm that file contains expected namespaced xml tag
if ($data === false) {
self::fail('Unable to read file');
} else {
self::assertStringContainsString('<c:title><c:tx><c:strRef><c:f>Sheet1!$A$1</c:f><c:strCache><c:ptCount val="1"/><c:pt idx="0"><c:v>NewTitle</c:v></c:pt></c:strCache></c:strRef></c:tx>', $data);
}
}
public function testChartTitleFormula(): void
{
$reader = new XlsxReader();
$reader->setIncludeCharts(true);
$spreadsheet = $reader->load(self::DIRECTORY . 'issue.2965.xlsx');
$worksheet = $spreadsheet->getActiveSheet();
$charts = $worksheet->getChartCollection();
self::assertCount(1, $charts);
$originalChart1 = $charts[0];
self::assertNotNull($originalChart1);
$originalTitle1 = $originalChart1->getTitle();
self::assertNotNull($originalTitle1);
self::assertSame('NewTitle', $originalTitle1->getCaptionText());
$spreadsheet->disconnectWorksheets();
}
}