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TrimBoxConstraint
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 check
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1<?php
2
3declare(strict_types=1);
4
5namespace Phpdftk\Pdf\Conformance\Constraint;
6
7use Phpdftk\Pdf\Conformance\Inspection\DocumentInspector;
8use Phpdftk\Pdf\Conformance\Profile\ConformanceProfile;
9use Phpdftk\Pdf\Conformance\Result\ConformanceViolation;
10use Phpdftk\Pdf\Conformance\Result\ViolationSeverity;
11
12/**
13 * PDF/X: All pages must have /TrimBox (or /ArtBox as fallback).
14 *
15 * The TrimBox defines the intended finished dimensions of the printed
16 * page after trimming. This is mandatory for all PDF/X levels.
17 */
18final class TrimBoxConstraint implements ConformanceConstraint
19{
20    public function check(DocumentInspector $inspector, ConformanceProfile $profile): array
21    {
22        $violations = [];
23        $pageIndex = 0;
24
25        foreach ($inspector->getPages() as $page) {
26            if ($page->trimBox === null && $page->artBox === null) {
27                $violations[] = new ConformanceViolation(
28                    clause: '6.2',
29                    message: sprintf(
30                        'Page %d must have /TrimBox (or /ArtBox) for %s conformance',
31                        $pageIndex,
32                        $profile->getFamily() . '-' . $profile->getLevel(),
33                    ),
34                    severity: ViolationSeverity::Error,
35                    objectPath: "Page[{$pageIndex}].TrimBox",
36                );
37            }
38            $pageIndex++;
39        }
40
41        return $violations;
42    }
43}