154 lines
4.5 KiB
PHP
154 lines
4.5 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Factories\HasFactory;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Support\Facades\File;
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use Symfony\Component\Console\Output\Output;
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class Librilladora extends Model {
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use HasFactory;
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public function procesar($fileName, $size) {
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$file = 'uploads/'.$fileName;
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$mpdf = new \Mpdf\Mpdf([
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'format' => 'A4-L',
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'margin_left' => 0,
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'margin_right' => 0,
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'margin_top' => 0,
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'margin_bottom' => 0,
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'margin_header' => 0,
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'margin_footer' => 0,
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]);
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// DIVIDIR EL DOCUMENTO Y BOOKLETEAR LAS DIVISIONES
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$pageCount = $mpdf->SetSourceFile($file);
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$cantBooklets = ($pageCount / $size);
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for ($i = 0; $i < $cantBooklets; $i++) {
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$comienzo = ($size*$i)+1;
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$fin = ($size*($i+1) < $pageCount) ? $size*($i+1) : $pageCount;
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$docAux = new \Mpdf\Mpdf();
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$docAux->SetSourceFile($file);
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for ($j = $comienzo; $j <= $fin; $j++) {
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$tplId = $docAux->importPage($j);
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$docAux->useTemplate($tplId);
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if ($j != $fin) $docAux->AddPage();
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}
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$docAux->Output('uploads/'.$i."-".$fileName, \Mpdf\Output\Destination::FILE);
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$this->librillar('uploads/', $i."-".$fileName);
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}
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// MERGEAR LAS DIVISIONES
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$fileNames = array();
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for ($i = 0; $i < $cantBooklets; $i++)
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array_push($fileNames, 'uploads/librillo-'.$i."-".$fileName);
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$this->mergePDFFiles($fileNames);
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File::delete($file);
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for ($i = 0; $i < count($fileNames); $i++) {
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File::delete('uploads/librillo-'.$i."-".$fileName);
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File::delete('uploads/'.$i."-".$fileName);
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}
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}
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private function librillar($dir, $filename) {
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$mpdf = new \Mpdf\Mpdf([
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'format' => 'A4-L',
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'margin_left' => 0,
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'margin_right' => 0,
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'margin_top' => 0,
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'margin_bottom' => 0,
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'margin_header' => 0,
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'margin_footer' => 0,
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]);
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$pw = $mpdf->w / 2;
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$ph = $mpdf->h;
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$mpdf->SetDisplayMode('fullpage');
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$pagecount = $mpdf->SetSourceFile($dir.$filename);
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$pp = $this->GetBookletPages($pagecount);
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foreach ($pp as $v) {
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$mpdf->AddPage();
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if ($v[0] > 0 && $v[0] <= $pagecount) {
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$tplIdx = $mpdf->ImportPage($v[0]); //, 0, 0, $ow, $oh
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$mpdf->UseTemplate($tplIdx, 0, 0, $pw, $ph);
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}
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if ($v[1] > 0 && $v[1] <= $pagecount) {
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$tplIdx = $mpdf->ImportPage($v[1]); //, 0, 0, $ow, $oh
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$mpdf->UseTemplate($tplIdx, $pw, 0, $pw, $ph);
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}
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}
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$mpdf->Output($dir.'librillo-'.$filename, \Mpdf\Output\Destination::FILE);
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}
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private function GetBookletPages($np, $backcover = true) {
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$lastpage = $np;
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$np = 4 * ceil($np / 4);
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$pp = [];
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for ($i = 1; $i <= $np / 2; $i++) {
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$p1 = $np - $i + 1;
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if ($backcover) {
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if ($i == 1) {
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$p1 = $lastpage;
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} elseif ($p1 >= $lastpage) {
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$p1 = 0;
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}
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}
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$pp[] = ($i % 2 == 1) ?
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[ $i, $p1 ] : [ $p1, $i ];
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}
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return $pp;
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}
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function mergePDFFiles(Array $filenames) {
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$mpdf = new \Mpdf\Mpdf([
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'format' => 'A4-L',
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'margin_left' => 0,
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'margin_right' => 0,
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'margin_top' => 0,
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'margin_bottom' => 0,
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'margin_header' => 0,
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'margin_footer' => 0,
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]);
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if ($filenames) {
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$filesTotal = sizeof($filenames);
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$fileNumber = 1;
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foreach ($filenames as $fileName) {
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if (file_exists($fileName)) {
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$pagesInFile = $mpdf->SetSourceFile($fileName);
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for ($i = 1; $i <= $pagesInFile; $i++) {
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$tplId = $mpdf->ImportPage($i); // in mPdf v8 should be 'importPage($i)'
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$mpdf->UseTemplate($tplId);
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if (($fileNumber < $filesTotal) || ($i != $pagesInFile)) {
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$mpdf->WriteHTML('<pagebreak />');
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}
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}
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}
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$fileNumber++;
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}
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$mpdf->Output();
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}
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}
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}
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