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<?php |
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declare(strict_types=1); |
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namespace SKien\Formgenerator; |
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/** |
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* Class to create fieldset as parent of lines. |
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* |
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* @package Formgenerator |
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* @author Stefanius <[email protected]> |
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* @copyright MIT License - see the LICENSE file for details |
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*/ |
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class FormFieldSet extends FormCollection |
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{ |
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/** legend of the fieldset contains text */ |
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const TEXT = 0; |
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/** legend of the fieldset contains an image */ |
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const IMAGE = 1; |
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/** @var string text or image for the legend */ |
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protected string $strLegend; |
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/** @var int type of the legend (FormFieldSet::TXET or FormFieldSet::IMAGE) */ |
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protected int $iType; |
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/** @var int height of the legend image */ |
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protected int $iImageHeight; |
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/** |
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* Creates a legend element. |
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* If legend should display an image with height other than 12px, this height |
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* must be set with setImageHeight(). |
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* @param string $strLegend text or image for the legend |
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* @param string $strID |
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* @param int $iType |
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*/ |
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public function __construct(string $strLegend, string $strID = '', int $iType = self::TEXT) |
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{ |
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parent::__construct(0); |
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$this->strLegend = $strLegend; |
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$this->strID = $strID; |
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$this->iType = $iType; |
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$this->iImageHeight = -1; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \SKien\Formgenerator\FormElement::fromXML() |
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*/ |
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static public function fromXML(\DOMElement $oXMLElement, FormCollection $oFormParent) : ?FormElement |
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{ |
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$strLegend = self::getAttribString($oXMLElement, 'legend', ''); |
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$strId = self::getAttribString($oXMLElement, 'id', ''); |
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$iType = self::TEXT; |
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$strType = self::getAttribString($oXMLElement, 'type', 'TEXT'); |
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$strConstName = 'self::' . strtoupper($strType); |
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if (defined($strConstName)) { |
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$iType = constant($strConstName); |
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} else { |
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trigger_error('Unknown Constant [' . $strConstName . '] for the FieldSet-Type property!', E_USER_WARNING ); |
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} |
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$oFormElement = new self($strLegend, $strId, $iType); |
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$oFormParent->add($oFormElement); |
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$oFormElement->readAdditionalXML($oXMLElement); |
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return $oFormElement; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \SKien\Formgenerator\FormElement::readAdditionalXML() |
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*/ |
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public function readAdditionalXML(\DOMElement $oXMLElement) : void |
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{ |
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parent::readAdditionalXML($oXMLElement); |
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if (($iImageHeight = self::getAttribInt($oXMLElement, 'imageheight')) !== null) { |
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$this->setImageHeight($iImageHeight); |
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} |
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} |
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/** |
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* Set height of legend image in pixels. |
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* The default-height is 12px. |
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* @param int $iHeight |
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*/ |
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public function setImageHeight(int $iHeight) : void |
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{ |
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$this->iImageHeight = $iHeight; |
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} |
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/** |
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* Build the HTML-notation for the fieldset. |
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* @return string |
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*/ |
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public function getHTML() : string |
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{ |
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$strHTML = ''; |
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$strHTML .= '<fieldset'; |
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$strHTML .= $this->buildID(); |
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$strHTML .= $this->buildStyle(); |
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$strHTML .= $this->buildAttributes(); |
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$strHTML .= ">" . PHP_EOL; |
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if (!empty($this->strLegend)) { |
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$strHTML .= ' <legend>'; |
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if ($this->iType == self::TEXT) { |
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$strHTML .= $this->strLegend; |
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} else { |
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// special case for style because legend is not treated as standalone element... |
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$this->iImageHeight > 0 ? $strStyle = ' style="height: ' . $this->iImageHeight . 'px;"' : $strStyle = ''; |
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$strHTML .= '<img src="' . $this->strLegend . '" alt="Legend"' . $strStyle . '>'; |
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} |
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$strHTML .= '</legend>' . PHP_EOL; |
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} |
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$iCnt = count($this->aChild); |
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for ($i = 0; $i < $iCnt; $i++) { |
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$strHTML .= $this->aChild[$i]->GetHTML(); |
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} |
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$strHTML .= '</fieldset>' . PHP_EOL; |
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return $strHTML; |
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} |
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} |
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