188 lines
5.7 KiB
PHP
188 lines
5.7 KiB
PHP
<?php
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/**
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* Classes to create relation schema in Dia format.
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Plugins\Schema\Dia;
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use PhpMyAdmin\Core;
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use PhpMyAdmin\ResponseRenderer;
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use XMLWriter;
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use function ob_end_clean;
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use function ob_get_clean;
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use function strlen;
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/**
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* This Class inherits the XMLwriter class and
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* helps in developing structure of DIA Schema Export
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*
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* @see https://www.php.net/manual/en/book.xmlwriter.php
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*/
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class Dia extends XMLWriter
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{
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/**
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* Upon instantiation This starts writing the Dia XML document
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*
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* @see XMLWriter::openMemory()
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* @see XMLWriter::setIndent()
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* @see XMLWriter::startDocument()
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*/
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public function __construct()
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{
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$this->openMemory();
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/*
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* Set indenting using three spaces,
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* so output is formatted
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*/
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$this->setIndent(true);
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$this->setIndentString(' ');
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/*
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* Create the XML document
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*/
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$this->startDocument('1.0', 'UTF-8');
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}
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/**
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* Starts Dia Document
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*
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* dia document starts by first initializing dia:diagram tag
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* then dia:diagramdata contains all the attributes that needed
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* to define the document, then finally a Layer starts which
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* holds all the objects.
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*
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* @see XMLWriter::startElement()
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* @see XMLWriter::writeAttribute()
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* @see XMLWriter::writeRaw()
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*
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* @param string $paper the size of the paper/document
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* @param float $topMargin top margin of the paper/document in cm
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* @param float $bottomMargin bottom margin of the paper/document in cm
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* @param float $leftMargin left margin of the paper/document in cm
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* @param float $rightMargin right margin of the paper/document in cm
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* @param string $orientation orientation of the document, portrait or landscape
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*/
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public function startDiaDoc(
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$paper,
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$topMargin,
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$bottomMargin,
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$leftMargin,
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$rightMargin,
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$orientation
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): void {
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$isPortrait = 'false';
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if ($orientation === 'P') {
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$isPortrait = 'true';
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}
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$this->startElement('dia:diagram');
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$this->writeAttribute('xmlns:dia', 'http://www.lysator.liu.se/~alla/dia/');
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$this->startElement('dia:diagramdata');
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$this->writeRaw(
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'<dia:attribute name="background">
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<dia:color val="#ffffff"/>
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</dia:attribute>
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<dia:attribute name="pagebreak">
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<dia:color val="#000099"/>
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</dia:attribute>
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<dia:attribute name="paper">
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<dia:composite type="paper">
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<dia:attribute name="name">
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<dia:string>#' . $paper . '#</dia:string>
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</dia:attribute>
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<dia:attribute name="tmargin">
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<dia:real val="' . $topMargin . '"/>
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</dia:attribute>
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<dia:attribute name="bmargin">
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<dia:real val="' . $bottomMargin . '"/>
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</dia:attribute>
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<dia:attribute name="lmargin">
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<dia:real val="' . $leftMargin . '"/>
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</dia:attribute>
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<dia:attribute name="rmargin">
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<dia:real val="' . $rightMargin . '"/>
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</dia:attribute>
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<dia:attribute name="is_portrait">
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<dia:boolean val="' . $isPortrait . '"/>
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</dia:attribute>
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<dia:attribute name="scaling">
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<dia:real val="1"/>
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</dia:attribute>
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<dia:attribute name="fitto">
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<dia:boolean val="false"/>
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</dia:attribute>
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</dia:composite>
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</dia:attribute>
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<dia:attribute name="grid">
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<dia:composite type="grid">
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<dia:attribute name="width_x">
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<dia:real val="1"/>
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</dia:attribute>
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<dia:attribute name="width_y">
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<dia:real val="1"/>
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</dia:attribute>
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<dia:attribute name="visible_x">
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<dia:int val="1"/>
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</dia:attribute>
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<dia:attribute name="visible_y">
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<dia:int val="1"/>
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</dia:attribute>
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<dia:composite type="color"/>
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</dia:composite>
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</dia:attribute>
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<dia:attribute name="color">
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<dia:color val="#d8e5e5"/>
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</dia:attribute>
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<dia:attribute name="guides">
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<dia:composite type="guides">
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<dia:attribute name="hguides"/>
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<dia:attribute name="vguides"/>
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</dia:composite>
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</dia:attribute>'
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);
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$this->endElement();
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$this->startElement('dia:layer');
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$this->writeAttribute('name', 'Background');
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$this->writeAttribute('visible', 'true');
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$this->writeAttribute('active', 'true');
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}
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/**
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* Ends Dia Document
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*
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* @see XMLWriter::endElement()
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* @see XMLWriter::endDocument()
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*/
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public function endDiaDoc(): void
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{
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$this->endElement();
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$this->endDocument();
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}
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/**
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* Output Dia Document for download
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*
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* @see XMLWriter::flush()
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*
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* @param string $fileName name of the dia document
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*/
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public function showOutput($fileName): void
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{
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if (ob_get_clean()) {
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ob_end_clean();
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}
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$output = $this->flush();
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ResponseRenderer::getInstance()->disable();
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Core::downloadHeader(
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$fileName,
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'application/x-dia-diagram',
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strlen($output)
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);
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print $output;
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}
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}
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