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97 lines
4.1 KiB
97 lines
4.1 KiB
<?php
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/**
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* Class.
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*/
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class ImsAnswerHotspot extends Answer implements ImsAnswerInterface
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{
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private $answerList = [];
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private $gradeList = [];
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/**
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* @todo update this to match hot spots instead of copying matching
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* Export the question part as a matrix-choice, with only one possible answer per line.
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*
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* @param string $questionIdent
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* @param string $questionStatment
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* @param string $questionDesc
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* @param string $questionMedia
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*
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* @return string
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*/
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public function imsExportResponses($questionIdent, $questionStatment, $questionDesc = '', $questionMedia = '')
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{
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$this->answerList = $this->getAnswersList(true);
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$mediaFilePath = api_get_course_path().'/document/images/'.$questionMedia;
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$sysQuestionMediaPath = api_get_path(SYS_COURSE_PATH).$mediaFilePath;
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$questionMedia = api_get_path(WEB_COURSE_PATH).$mediaFilePath;
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$mimetype = mime_content_type($sysQuestionMediaPath);
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if (empty($mimetype)) {
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$mimetype = 'image/jpeg';
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}
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$text = ' <p>'.$questionStatment.'</p>'."\n";
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$text .= ' <graphicOrderInteraction responseIdentifier="hotspot_'.$questionIdent.'">'."\n";
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$text .= ' <prompt>'.$questionDesc.'</prompt>'."\n";
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$text .= ' <object type="'.$mimetype.'" width="250" height="230" data="'.$questionMedia.'">-</object>'."\n";
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if (is_array($this->answerList)) {
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foreach ($this->answerList as $key => $answer) {
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$key = $answer['id'];
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$answerTxt = $answer['answer'];
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$len = api_strlen($answerTxt);
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//coords are transformed according to QTIv2 rules here: http://www.imsproject.org/question/qtiv2p1pd/imsqti_infov2p1pd.html#element10663
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$coords = '';
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$type = 'default';
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switch ($answer['hotspot_type']) {
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case 'square':
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$type = 'rect';
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$res = [];
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$coords = preg_match('/^\s*(\d+);(\d+)\|(\d+)\|(\d+)\s*$/', $answer['hotspot_coord'], $res);
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$coords = $res[1].','.$res[2].','.((int) $res[1] + (int) $res[3]).','.((int) $res[2] + (int) $res[4]);
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break;
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case 'circle':
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$type = 'circle';
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$res = [];
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$coords = preg_match('/^\s*(\d+);(\d+)\|(\d+)\|(\d+)\s*$/', $answer['hotspot_coord'], $res);
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$coords = $res[1].','.$res[2].','.sqrt(pow($res[1] - $res[3], 2) + pow($res[2] - $res[4]));
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break;
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case 'poly':
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$type = 'poly';
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$coords = str_replace([';', '|'], [',', ','], $answer['hotspot_coord']);
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break;
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case 'delineation':
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$type = 'delineation';
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$coords = str_replace([';', '|'], [',', ','], $answer['hotspot_coord']);
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break;
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}
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$text .= ' <hotspotChoice shape="'.$type.'" coords="'.$coords.'" identifier="'.$key.'"/>'."\n";
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}
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}
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$text .= ' </graphicOrderInteraction>'."\n";
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return $text;
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}
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public function imsExportResponsesDeclaration($questionIdent, Question $question = null)
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{
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$this->answerList = $this->getAnswersList(true);
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$this->gradeList = $this->getGradesList();
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$out = ' <responseDeclaration identifier="hotspot_'.$questionIdent.'" cardinality="ordered" baseType="identifier">'."\n";
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if (is_array($this->answerList)) {
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$out .= ' <correctResponse>'."\n";
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foreach ($this->answerList as $answerKey => $answer) {
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$answerKey = $answer['id'];
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$answer = $answer['answer'];
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$out .= '<value><![CDATA['.formatExerciseQtiText($answerKey).']]></value>';
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}
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$out .= ' </correctResponse>'."\n";
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}
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$out .= ' </responseDeclaration>'."\n";
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return $out;
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}
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}
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