class.assImagemapQuestionGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once './Modules/TestQuestionPool/classes/class.assQuestionGUI.php';
require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiQuestionScoringAdjustable.php';
require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiAnswerScoringAdjustable.php';
include_once './Modules/Test/classes/inc.AssessmentConstants.php';
require_once  'Services/WebAccessChecker/classes/class.ilWACSignedPath.php';

class assImagemapQuestionGUI extends assQuestionGUI implements ilGuiQuestionScoringAdjustable, ilGuiAnswerScoringAdjustable
{
        private $linecolor;
        
        public function __construct($id = -1)
        {
                parent::__construct();
                include_once './Modules/TestQuestionPool/classes/class.assImagemapQuestion.php';
                $this->object = new assImagemapQuestion();
                if ($id >= 0)
                {
                        $this->object->loadFromDb($id);
                }
                $assessmentSetting = new ilSetting("assessment");
                $this->linecolor = (strlen($assessmentSetting->get("imap_line_color"))) ? "#" . $assessmentSetting->get("imap_line_color") : "#FF0000";
        }

        function getCommand($cmd)
        {
                if (isset($_POST["imagemap"]) ||
                isset($_POST["imagemap_x"]) ||
                isset($_POST["imagemap_y"]))
                {
                        $this->ctrl->setCmd("getCoords");
                        $cmd = "getCoords";
                }

                return $cmd;
        }
        
        protected function deleteImage()
        {
                $this->object->deleteImage();
                $this->object->saveToDb();
                ilUtil::sendSuccess($this->lng->txt('saved_successfully'), true);
                $this->ctrl->redirect($this, 'editQuestion');
        }

        protected function writePostData($always = false)
        {
                $form = $this->buildEditForm();
                $form->setValuesByPost();

                if(!$always && !$form->checkInput())
                {
                        $this->editQuestion($form);
                        return 1;
                }

                $this->writeQuestionGenericPostData();
                $this->writeQuestionSpecificPostData($form);
                $this->writeAnswerSpecificPostData($form);
                $this->saveTaxonomyAssignments();

                return 0;
        }

        public function writeAnswerSpecificPostData(ilPropertyFormGUI $form)
        {
                if ($this->ctrl->getCmd() != 'deleteImage')
                {
                        $this->object->flushAnswers();
                        if (is_array( $_POST['image']['coords']['name'] ))
                        {
                                foreach ($_POST['image']['coords']['name'] as $idx => $name)
                                {
                                        if( $this->object->getIsMultipleChoice() && isset($_POST['image']['coords']['points_unchecked']) )
                                        {
                                                $pointsUnchecked = $_POST['image']['coords']['points_unchecked'][$idx];
                                        }
                                        else
                                        {
                                                $pointsUnchecked = 0.0;
                                        }
                                        
                                        $this->object->addAnswer(
                                                $name,
                                                $_POST['image']['coords']['points'][$idx],
                                                $idx,
                                                $_POST['image']['coords']['coords'][$idx],
                                                $_POST['image']['coords']['shape'][$idx],
                                                $pointsUnchecked
                                        );
                                }
                        }

                        if(strlen($_FILES['imagemapfile']['tmp_name']))
                        {
                                if($this->object->getSelfAssessmentEditingMode() && $this->object->getId() < 1)
                                {
                                        $this->object->createNewQuestion();
                                }

                                $this->object->uploadImagemap($form->getItemByPostVar('imagemapfile')->getShapes());
                        }
                }
        }

        public function writeQuestionSpecificPostData(ilPropertyFormGUI $form)
        {
                if ($this->ctrl->getCmd() != 'deleteImage')
                {
                        if (strlen( $_FILES['image']['tmp_name'] ) == 0)
                        {
                                $this->object->setImageFilename( $_POST["image_name"] );
                        }
                }
                if (strlen( $_FILES['image']['tmp_name'] ))
                {
                        if ($this->object->getSelfAssessmentEditingMode() && $this->object->getId() < 1)
                                $this->object->createNewQuestion();
                        $this->object->setImageFilename( $_FILES['image']['name'], $_FILES['image']['tmp_name'] );
                }
                
                $this->object->setIsMultipleChoice($_POST['is_multiple_choice'] == assImagemapQuestion::MODE_MULTIPLE_CHOICE);
        }

        protected function buildEditForm()
        {
                $form = $this->buildBasicEditFormObject();

                $this->addBasicQuestionFormProperties($form);
                $this->populateQuestionSpecificFormPart($form);
                $this->populateTaxonomyFormSection($form);
                $this->addQuestionFormCommandButtons($form);

                return $form;
        }

        public function editQuestion(ilPropertyFormGUI $form = null)
        {
                if(null === $form)
                {
                        $form = $this->buildEditForm();
                }

                $this->getQuestionTemplate();
                $this->tpl->addCss('Modules/Test/templates/default/ta.css');

                $this->tpl->setVariable('QUESTION_DATA', $this->ctrl->getHTML($form));
        }

        public function populateAnswerSpecificFormPart(\ilPropertyFormGUI $form)
        {
                return $form; // Nothing to do here since selectable areas are handled in question-specific-form part
                                          // due to their immediate dependency to the image. I decide to not break up the interfaces
                                          // more just to support this very rare case. tl;dr: See the issue, ignore it.
        }

        public function populateQuestionSpecificFormPart(\ilPropertyFormGUI $form)
        {
                $radioGroup = new ilRadioGroupInputGUI($this->lng->txt( 'tst_imap_qst_mode' ), 'is_multiple_choice');
                $radioGroup->setValue( $this->object->getIsMultipleChoice() );
                $modeSingleChoice = new ilRadioOption($this->lng->txt( 'tst_imap_qst_mode_sc'), 
                                                                                          assImagemapQuestion::MODE_SINGLE_CHOICE);
                $modeMultipleChoice = new ilRadioOption($this->lng->txt( 'tst_imap_qst_mode_mc'), 
                                                                                                assImagemapQuestion::MODE_MULTIPLE_CHOICE);
                $radioGroup->addOption( $modeSingleChoice );
                $radioGroup->addOption( $modeMultipleChoice );
                $form->addItem( $radioGroup );

                require_once 'Modules/TestQuestionPool/classes/forms/class.ilImagemapFileInputGUI.php';
                $image = new ilImagemapFileInputGUI($this->lng->txt( 'image' ), 'image');
                $image->setPointsUncheckedFieldEnabled( $this->object->getIsMultipleChoice() );
                $image->setRequired( true );

                if (strlen( $this->object->getImageFilename() ))
                {
                        $image->setImage( $this->object->getImagePathWeb() . $this->object->getImageFilename() );
                        $image->setValue( $this->object->getImageFilename() );
                        $image->setAreas( $this->object->getAnswers() );
                        $assessmentSetting = new ilSetting("assessment");
                        $linecolor         = (strlen( $assessmentSetting->get( "imap_line_color" )
                        )) ? "\"#" . $assessmentSetting->get( "imap_line_color" ) . "\"" : "\"#FF0000\"";
                        $image->setLineColor( $linecolor );
                        $image->setImagePath( $this->object->getImagePath() );
                        $image->setImagePathWeb( $this->object->getImagePathWeb() );
                }
                $form->addItem( $image );

                require_once 'Modules/TestQuestionPool/classes/forms/class.ilHtmlImageMapFileInputGUI.php';
                $imagemapfile = new ilHtmlImageMapFileInputGUI($this->lng->txt('add_imagemap'), 'imagemapfile');
                $imagemapfile->setRequired(false);
                $form->addItem($imagemapfile);
                return $form;
        }

        function addRect()
        {
                $this->areaEditor('rect');
        }
        
        function addCircle()
        {
                $this->areaEditor('circle');
        }
        
        function addPoly()
        {
                $this->areaEditor('poly');
        }

        public function saveShape()
        {
                $coords = "";
                switch ($_POST["shape"])
                {
                        case "rect":
                                $coords = join($_POST['image']['mapcoords'], ",");
                                ilUtil::sendSuccess($this->lng->txt('msg_rect_added'), true);
                                break;
                        case "circle":
                                if (preg_match("/(\d+)\s*,\s*(\d+)\s+(\d+)\s*,\s*(\d+)/", $_POST['image']['mapcoords'][0] . " " . $_POST['image']['mapcoords'][1], $matches))
                                {
                                        $coords = "$matches[1],$matches[2]," . (int)sqrt((($matches[3]-$matches[1])*($matches[3]-$matches[1]))+(($matches[4]-$matches[2])*($matches[4]-$matches[2])));
                                }
                                ilUtil::sendSuccess($this->lng->txt('msg_circle_added'), true);
                                break;
                        case "poly":
                                $coords = join($_POST['image']['mapcoords'], ",");
                                ilUtil::sendSuccess($this->lng->txt('msg_poly_added'), true);
                                break;
                }
                $this->object->addAnswer($_POST["shapetitle"], 0, count($this->object->getAnswers()), $coords, $_POST["shape"]);
                $this->object->saveToDb();
                $this->ctrl->redirect($this, 'editQuestion');
        }

        public function areaEditor($shape = '')
        {
                $shape = (strlen($shape)) ? $shape : $_POST['shape'];
                include_once "./Modules/TestQuestionPool/classes/class.ilImagemapPreview.php";
                $this->getQuestionTemplate();
                $this->tpl->addBlockFile("QUESTION_DATA", "question_data", "tpl.il_as_qpl_imagemap_question.html", "Modules/TestQuestionPool");
                $coords = array();
                if (is_array($_POST['image']['mapcoords']))
                {
                        foreach ($_POST['image']['mapcoords'] as $value)
                        {
                                array_push($coords, $value);
                        }
                }
                if (is_array($_POST['cmd']['areaEditor']['image']))
                {
                        array_push($coords, $_POST['cmd']['areaEditor']['image'][0] . "," . $_POST['cmd']['areaEditor']['image'][1]);
                }
                foreach ($coords as $value)
                {
                        $this->tpl->setCurrentBlock("hidden");
                        $this->tpl->setVariable("HIDDEN_NAME", 'image[mapcoords][]');
                        $this->tpl->setVariable("HIDDEN_VALUE", $value);
                        $this->tpl->parseCurrentBlock();
                }
                
                $this->tpl->setCurrentBlock("hidden");
                $this->tpl->setVariable("HIDDEN_NAME", 'shape');
                $this->tpl->setVariable("HIDDEN_VALUE", $shape);
                $this->tpl->parseCurrentBlock();

                $preview = new ilImagemapPreview($this->object->getImagePath().$this->object->getImageFilename());
                foreach ($this->object->answers as $index => $answer)
                {
                        $preview->addArea($index, $answer->getArea(), $answer->getCoords(), $answer->getAnswertext(), "", "", true, $this->linecolor);
                }
                $hidearea = false;
                $disabled_save = " disabled=\"disabled\"";
                $c = "";
                switch ($shape)
                {
                        case "rect":
                                if (count($coords) == 0)
                                {
                                        ilUtil::sendInfo($this->lng->txt("rectangle_click_tl_corner"));
                                }
                                else if (count($coords) == 1)
                                {
                                        ilUtil::sendInfo($this->lng->txt("rectangle_click_br_corner"));
                                        $preview->addPoint($preview->getAreaCount(), join($coords, ","), TRUE, "blue");
                                }
                                else if (count($coords) == 2)
                                {
                                        $c = join($coords, ",");
                                        $hidearea = true;
                                        $disabled_save = "";
                                }
                                break;
                        case "circle":
                                if (count($coords) == 0)
                                {
                                        ilUtil::sendInfo($this->lng->txt("circle_click_center"));
                                }
                                else if (count($coords) == 1)
                                {
                                        ilUtil::sendInfo($this->lng->txt("circle_click_circle"));
                                        $preview->addPoint($preview->getAreaCount(), join($coords, ","), TRUE, "blue");
                                }
                                else if (count($coords) == 2)
                                {
                                        if (preg_match("/(\d+)\s*,\s*(\d+)\s+(\d+)\s*,\s*(\d+)/", $coords[0] . " " . $coords[1], $matches))
                                        {
                                                $c = "$matches[1],$matches[2]," . (int)sqrt((($matches[3]-$matches[1])*($matches[3]-$matches[1]))+(($matches[4]-$matches[2])*($matches[4]-$matches[2])));
                                        }
                                        $hidearea = true;
                                        $disabled_save = "";
                                }
                                break;
                        case "poly":
                                if (count($coords) == 0)
                                {
                                        ilUtil::sendInfo($this->lng->txt("polygon_click_starting_point"));
                                }
                                else if (count($coords) == 1)
                                {
                                        ilUtil::sendInfo($this->lng->txt("polygon_click_next_point"));
                                        $preview->addPoint($preview->getAreaCount(), join($coords, ","), TRUE, "blue");
                                }
                                else if (count($coords) > 1)
                                {
                                        ilUtil::sendInfo($this->lng->txt("polygon_click_next_or_save"));
                                        $disabled_save = "";
                                        $c = join($coords, ",");
                                }
                                break;
                }
                if (strlen($c))
                {
                        $preview->addArea($preview->getAreaCount(), $shape, $c, $_POST["shapetitle"], "", "", true, "blue");
                }
                $preview->createPreview();
                $imagepath = $this->object->getImagePathWeb() . $preview->getPreviewFilename($this->object->getImagePath(), $this->object->getImageFilename()) . "?img=" . time();
                if (!$hidearea)
                {
                        $this->tpl->setCurrentBlock("maparea");
                        $this->tpl->setVariable("IMAGE_SOURCE", "$imagepath");
                        $this->tpl->setVariable("IMAGEMAP_NAME", "image");
                        $this->tpl->parseCurrentBlock();
                }
                else
                {
                        $this->tpl->setCurrentBlock("imagearea");
                        $this->tpl->setVariable("IMAGE_SOURCE", "$imagepath");
                        $this->tpl->setVariable("ALT_IMAGE", $this->lng->txt("imagemap"));
                        $this->tpl->parseCurrentBlock();
                }

                if (strlen($_POST['shapetitle']))
                {
                        $this->tpl->setCurrentBlock("shapetitle");
                        $this->tpl->setVariable("VALUE_SHAPETITLE", $_POST["shapetitle"]);
                        $this->tpl->parseCurrentBlock();
                }

                $this->tpl->setVariable("TEXT_IMAGEMAP", $this->lng->txt("imagemap"));
                $this->tpl->setVariable("TEXT_SHAPETITLE", $this->lng->txt("ass_imap_hint"));
                $this->tpl->setVariable("CANCEL", $this->lng->txt("cancel"));
                $this->tpl->setVariable("SAVE", $this->lng->txt("save"));
                $this->tpl->setVariable("DISABLED_SAVE", $disabled_save);
                switch ($shape)
                {
                        case "rect":
                                $this->tpl->setVariable("FORMACTION",   $this->ctrl->getFormaction($this, 'addRect'));
                                break;
                        case 'circle':
                                $this->tpl->setVariable("FORMACTION",   $this->ctrl->getFormaction($this, 'addCircle'));
                                break;
                        case 'poly':
                                $this->tpl->setVariable("FORMACTION",   $this->ctrl->getFormaction($this, 'addPoly'));
                                break;
                }
        }

        function back()
        {
                ilUtil::sendInfo($this->lng->txt('msg_cancel'), true);
                $this->ctrl->redirect($this, 'editQuestion');
        }

        // hey: prevPassSolutions - max solution pass determinations allready done, pass passed for sure
        // hey: fixedIdentifier - changed access to passed param (lower-/uppercase issues)
        protected function completeTestOutputFormAction($formAction, $active_id, $pass)
        {
                #require_once './Modules/Test/classes/class.ilObjTest.php';
                #if (!ilObjTest::_getUsePreviousAnswers($active_id, true))
                #{
                #       $pass = ilObjTest::_getPass($active_id);
                #       $info = $this->object->getUserSolutionPreferingIntermediate($active_id, $pass);
                #}
                #else
                #{
                #       $info = $this->object->getUserSolutionPreferingIntermediate($active_id, NULL);
                #}
                
                $info = $this->object->getTestOutputSolutions($active_id, $pass);

                if (count($info))
                {
                        if (strcmp($info[0]["value1"], "") != 0)
                        {
                                $formAction .= "&selImage=" . $info[0]["value1"];
                        }
                }

                return $formAction;
        }
        // hey.
        // hey.

        function getSolutionOutput(
                $active_id,
                $pass = NULL,
                $graphicalOutput = FALSE,
                $result_output = FALSE,
                $show_question_only = TRUE,
                $show_feedback = FALSE,
                $show_correct_solution = FALSE,
                $show_manual_scoring = FALSE,
                $show_question_text = TRUE
        )
        {
                $imagepath = $this->object->getImagePathWeb() . $this->object->getImageFilename();
                $solutions = array();
                if (($active_id > 0) && (!$show_correct_solution))
                {
                        include_once "./Modules/Test/classes/class.ilObjTest.php";
                        if ((!$showsolution) && !ilObjTest::_getUsePreviousAnswers($active_id, true))
                        {
                                if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
                        }
                        $solutions =& $this->object->getSolutionValues($active_id, $pass);
                }
                else
                {
                        if(!$this->object->getIsMultipleChoice())
                        {
                                $found_index = -1;
                                $max_points = 0;
                                foreach ($this->object->answers as $index => $answer)
                                {
                                        if ($answer->getPoints() > $max_points)
                                        {
                                                $max_points = $answer->getPoints();
                                                $found_index = $index;
                                        }
                                }
                                array_push($solutions, array("value1" => $found_index));
                        }
                        else
                        {
                                // take the correct solution instead of the user solution
                                foreach($this->object->answers as $index => $answer)
                                {
                                        $points_checked   = $answer->getPoints();
                                        $points_unchecked = $answer->getPointsUnchecked();
                                        if($points_checked > $points_unchecked)
                                        {
                                                if($points_checked > 0)
                                                {
                                                        array_push($solutions, array("value1" => $index));
                                                }
                                        }
                                }
                        }
                }
                $solution_id = -1;
                if (is_array($solutions))
                {
                        include_once "./Modules/TestQuestionPool/classes/class.ilImagemapPreview.php";
                        $preview = new ilImagemapPreview($this->object->getImagePath().$this->object->getImageFilename());
                        foreach ($solutions as $idx => $solution_value)
                        {
                                if (strcmp($solution_value["value1"], "") != 0)
                                {
                                        $preview->addArea($solution_value["value1"], $this->object->answers[$solution_value["value1"]]->getArea(), $this->object->answers[$solution_value["value1"]]->getCoords(), $this->object->answers[$solution_value["value1"]]->getAnswertext(), "", "", true, $this->linecolor);
                                        $solution_id = $solution_value["value1"];
                                }
                        }
                        $preview->createPreview();
                        $imagepath = $this->object->getImagePathWeb() . $preview->getPreviewFilename($this->object->getImagePath(), $this->object->getImageFilename());
                }
                
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_imagemap_question_output_solution.html", TRUE, TRUE, "Modules/TestQuestionPool");
                $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
                $questiontext = $this->object->getQuestion();
                if ($show_question_text==true)
                {
                        $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                }
                
                $template->setVariable("IMG_SRC", ilWACSignedPath::signFile($imagepath));
                $template->setVariable("IMG_ALT", $this->lng->txt("imagemap"));
                $template->setVariable("IMG_TITLE", $this->lng->txt("imagemap"));
                if (($active_id > 0) && (!$show_correct_solution))
                {
                        if ($graphicalOutput)
                        {
                                // output of ok/not ok icons for user entered solutions
                                $reached_points = $this->object->getReachedPoints($active_id, $pass);
                                if ($reached_points == $this->object->getMaximumPoints())
                                {
                                        $template->setCurrentBlock("icon_ok");
                                        $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.svg"));
                                        $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
                                        $template->parseCurrentBlock();
                                }
                                else
                                {
                                        $template->setCurrentBlock("icon_ok");
                                        if ($reached_points > 0)
                                        {
                                                $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_mostly_ok.svg"));
                                                $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_not_correct_but_positive"));
                                        }
                                        else
                                        {
                                                $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.svg"));
                                                $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
                                        }
                                        $template->parseCurrentBlock();
                                }
                        }
                }
                        
                if ($show_feedback)
                {
                        $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
                                        $this->object->getId(), $solution_id
                        );
                        
                        if (strlen($fb))
                        {
                                $template->setCurrentBlock("feedback");
                                $template->setVariable("FEEDBACK", $fb);
                                $template->parseCurrentBlock();
                        }
                }

                $questionoutput = $template->get();
                $feedback = ($show_feedback && !$this->isTestPresentationContext()) ? $this->getAnswerFeedbackOutput($active_id, $pass) : "";
                if (strlen($feedback))
                {
                        $cssClass = ( $this->hasCorrectSolution($active_id, $pass) ?
                                ilAssQuestionFeedback::CSS_CLASS_FEEDBACK_CORRECT : ilAssQuestionFeedback::CSS_CLASS_FEEDBACK_WRONG
                        );
                        
                        $solutiontemplate->setVariable("ILC_FB_CSS_CLASS", $cssClass);
                        $solutiontemplate->setVariable("FEEDBACK", $this->object->prepareTextareaOutput( $feedback, true ));
                }
                $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);

                $solutionoutput = $solutiontemplate->get(); 
                if (!$show_question_only)
                {
                        // get page object output
                        $solutionoutput = $this->getILIASPage($solutionoutput);
                }
                return $solutionoutput;
        }
        
        function getPreview($show_question_only = FALSE, $showInlineFeedback = false)
        {
                if( is_object($this->getPreviewSession()) )
                {
                        $user_solution = array();
                        
                        if( is_array($this->getPreviewSession()->getParticipantsSolution()) )
                        {
                                $user_solution = array_values($this->getPreviewSession()->getParticipantsSolution());
                        }
                        
                        include_once "./Modules/TestQuestionPool/classes/class.ilImagemapPreview.php";
                        $preview = new ilImagemapPreview($this->object->getImagePath().$this->object->getImageFilename());
                        foreach ($user_solution as $idx => $solution_value)
                        {
                                if (strcmp($solution_value, "") != 0)
                                {
                                        $preview->addArea($solution_value, $this->object->answers[$solution_value]->getArea(), $this->object->answers[$solution_value]->getCoords(), $this->object->answers[$solution_value]->getAnswertext(), "", "", true, $this->linecolor);
                                }
                        }
                        $preview->createPreview();
                        $imagepath = $this->object->getImagePathWeb() . $preview->getPreviewFilename($this->object->getImagePath(), $this->object->getImageFilename());
                }
                else
                {
                        $user_solution = array();
                        $imagepath = $this->object->getImagePathWeb() . $this->object->getImageFilename();
                }
                
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_imagemap_question_output.html", TRUE, TRUE, "Modules/TestQuestionPool");

                if($this->getQuestionActionCmd()  && strlen($this->getTargetGuiClass()))
                {
                        $hrefArea = $this->ctrl->getLinkTargetByClass($this->getTargetGuiClass(), $this->getQuestionActionCmd());
                }
                else
                {
                        $hrefArea = null;
                }

                foreach ($this->object->answers as $answer_id => $answer)
                {
                        $parameter = "&amp;selImage=$answer_id";
                        if(is_array($user_solution) && in_array($answer_id, $user_solution))
                        {
                                $parameter = "&amp;remImage=$answer_id";
                        }

                        if($hrefArea)
                        {
                                $template->setCurrentBlock("imagemap_area_href");
                                $template->setVariable("HREF_AREA", $hrefArea . $parameter);
                                $template->parseCurrentBlock();
                        }
                        
                        $template->setCurrentBlock("imagemap_area");
                        $template->setVariable("SHAPE", $answer->getArea());
                        $template->setVariable("COORDS", $answer->getCoords());
                        $template->setVariable("ALT", ilUtil::prepareFormOutput($answer->getAnswertext()));
                        $template->setVariable("TITLE", ilUtil::prepareFormOutput($answer->getAnswertext()));
                        $template->parseCurrentBlock();
                }
                $questiontext = $this->object->getQuestion();
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                $template->setVariable("IMG_SRC", ilWACSignedPath::signFile($imagepath));
                $template->setVariable("IMG_ALT", $this->lng->txt("imagemap"));
                $template->setVariable("IMG_TITLE", $this->lng->txt("imagemap"));
                $questionoutput = $template->get();
                if (!$show_question_only)
                {
                        // get page object output
                        $questionoutput = $this->getILIASPage($questionoutput);
                }
                return $questionoutput;
        }

        // hey: prevPassSolutions - pass will be always available from now on
        function getTestOutput($active_id, $pass, $is_postponed = FALSE, $use_post_solutions = FALSE, $show_feedback = FALSE)
        // hey.
        {
                if( $active_id )
                {
                        // hey: prevPassSolutions - obsolete due to central check
                        #$solutions = NULL;
                        #include_once "./Modules/Test/classes/class.ilObjTest.php";
                        #if (!ilObjTest::_getUsePreviousAnswers($active_id, true))
                        #{
                        #       if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
                        #}
                        $solutions = $this->object->getTestOutputSolutions($active_id, $pass);
                        // hey.
                        
                        $userSelection = array();
                        $selectionIndex = 0;
                        
                        include_once "./Modules/TestQuestionPool/classes/class.ilImagemapPreview.php";
                        $preview = new ilImagemapPreview($this->object->getImagePath().$this->object->getImageFilename());
                        
                        foreach( $solutions as $idx => $solution_value )
                        {
                                if( strlen($solution_value["value1"]) )
                                {
                                        $preview->addArea($solution_value["value1"], $this->object->answers[$solution_value["value1"]]->getArea(), $this->object->answers[$solution_value["value1"]]->getCoords(), $this->object->answers[$solution_value["value1"]]->getAnswertext(), "", "", true, $this->linecolor);
                                        $userSelection[$selectionIndex] = $solution_value["value1"];
                                        
                                        $selectionIndex = $this->object->getIsMultipleChoice() ? ++$selectionIndex : $selectionIndex;
                                }
                        }
                        
                        $preview->createPreview();
                        
                        $imagepath = $this->object->getImagePathWeb().$preview->getPreviewFilename($this->object->getImagePath(), $this->object->getImageFilename());
                }
                else
                {
                        $imagepath = $this->object->getImagePathWeb().$this->object->getImageFilename();
                }
                
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_imagemap_question_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
                $this->ctrl->setParameterByClass($this->getTargetGuiClass(), "formtimestamp", time());
                $hrefArea = $this->ctrl->getLinkTargetByClass($this->getTargetGuiClass(), $this->getQuestionActionCmd());
                foreach ($this->object->answers as $answer_id => $answer)
                {
                        $template->setCurrentBlock("imagemap_area");
                        $template->setVariable("HREF_AREA", $this->buildAreaLinkTarget($userSelection, $answer_id));
                        $template->setVariable("SHAPE", $answer->getArea());
                        $template->setVariable("COORDS", $answer->getCoords());
                        $template->setVariable("ALT", ilUtil::prepareFormOutput($answer->getAnswertext()));
                        $template->setVariable("TITLE", ilUtil::prepareFormOutput($answer->getAnswertext()));
                        $template->parseCurrentBlock();
                        if ($show_feedback)
                        {
                                if(!$this->object->getIsMultipleChoice() && count($userSelection) && current($userSelection) == $answer_id)
                                {
                                        $feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
                                                        $this->object->getId(), $answer_id
                                        );
                                        if (strlen($feedback))
                                        {
                                                $template->setCurrentBlock("feedback");
                                                $template->setVariable("FEEDBACK", $feedback);
                                                $template->parseCurrentBlock();
                                        }
                                }
                        }
                }
                $questiontext = $this->object->getQuestion();
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                $template->setVariable("IMG_SRC", ilWACSignedPath::signFile($imagepath));
                $template->setVariable("IMG_ALT", $this->lng->txt("imagemap"));
                $template->setVariable("IMG_TITLE", $this->lng->txt("imagemap"));
                $questionoutput = $template->get();
                $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id, $questionoutput);
                return $pageoutput;
        }
        
        // hey: prevPassSolutions - fixed confusing handling of not reusing, but modifying the previous solution
        protected function buildAreaLinkTarget($currentSelection, $areaIndex)
        {
                $href = $this->ctrl->getLinkTargetByClass(
                        $this->getTargetGuiClass(), $this->getQuestionActionCmd()
                );
                
                $href = ilUtil::appendUrlParameterString(
                        $href, $this->buildSelectionParameter($currentSelection, $areaIndex)
                );
                
                return $href;
        }
        
        protected function buildSelectionParameter($currentSelection, $areaIndex = null)
        {
                if( $this->object->getTestPresentationConfig()->isSolutionInitiallyPrefilled() )
                {
                        $reuseSelection = array();
                        
                        if( $areaIndex === null )
                        {
                                $reuseSelection = $currentSelection;
                        }
                        elseif( $this->object->getIsMultipleChoice() )
                        {
                                if( !in_array($areaIndex, $currentSelection) )
                                {
                                        $reuseSelection[] = $areaIndex;
                                }
                                
                                foreach(array_diff($currentSelection, array($areaIndex)) as $otherSelectedArea)
                                {
                                        $reuseSelection[] = $otherSelectedArea;
                                }
                        }
                        else
                        {
                                $reuseSelection[] = $areaIndex;
                        }
                        
                        $selection = assQuestion::implodeKeyValues($reuseSelection);
                        $action = 'reuseSelection';
                }
                elseif( $areaIndex !== null ) 
                {
                        if( !$this->object->getIsMultipleChoice() || !in_array($areaIndex, $currentSelection) )
                        {
                                $areaAction = 'selImage';
                        }
                        else
                        {
                                $areaAction = 'remImage';
                        }
                        
                        $selection = $areaIndex;
                        $action = $areaAction;
                }
                else
                {
                        return '';
                }
                
                return "{$action}={$selection}";
        }
        // hey.

        public function setQuestionTabs()
        {
                global $rbacsystem, $ilTabs;

                $ilTabs->clearTargets();
                
                $this->ctrl->setParameterByClass("ilAssQuestionPageGUI", "q_id", $_GET["q_id"]);
                include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
                $q_type = $this->object->getQuestionType();

                if (strlen($q_type))
                {
                        $classname = $q_type . "GUI";
                        $this->ctrl->setParameterByClass(strtolower($classname), "sel_question_types", $q_type);
                        $this->ctrl->setParameterByClass(strtolower($classname), "q_id", $_GET["q_id"]);
                }

                if ($_GET["q_id"])
                {
                        if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
                        {
                                // edit page
                                $ilTabs->addTarget("edit_page",
                                        $this->ctrl->getLinkTargetByClass("ilAssQuestionPageGUI", "edit"),
                                        array("edit", "insert", "exec_pg"),
                                        "", "", $force_active);
                        }

                        $this->addTab_QuestionPreview($ilTabs);
                }

                $force_active = false;
                if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
                {
                        $url = "";
                        if ($classname) $url = $this->ctrl->getLinkTargetByClass($classname, "editQuestion");
                        if (array_key_exists("imagemap_x", $_POST))
                        {
                                $force_active = true;
                        }
                        // edit question propertiesgetPreviousSolutionValues
                        $ilTabs->addTarget("edit_question",
                                $url,
                                array("editQuestion", "save", "addArea", "addRect", "addCircle", "addPoly", 
                                         "uploadingImage", "uploadingImagemap", "areaEditor",
                                         "saveShape", "saveEdit", "originalSyncForm"),
                                $classname, "", $force_active);
                }

                // add tab for question feedback within common class assQuestionGUI
                $this->addTab_QuestionFeedback($ilTabs);

                // add tab for question hint within common class assQuestionGUI
                $this->addTab_QuestionHints($ilTabs);

                // add tab for question's suggested solution within common class assQuestionGUI
                $this->addTab_SuggestedSolution($ilTabs, $classname);

                // Assessment of questions sub menu entry
                if ($_GET["q_id"])
                {
                        $ilTabs->addTarget("statistics",
                                $this->ctrl->getLinkTargetByClass($classname, "assessment"),
                                array("assessment"),
                                $classname, "");
                }

                $this->addBackTab($ilTabs);
        }

        function getSpecificFeedbackOutput($active_id, $pass)
        {
                if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_values($this->object->getAnswers())) )
                {
                        return '';
                }

                $output = '<table class="test_specific_feedback"><tbody>';

                foreach($this->object->getAnswers() as $idx => $answer)
                {
                        $feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
                                $this->object->getId(), $idx
                        );

                        $output .= "<tr><td>{$answer->getAnswerText()}</td><td>{$feedback}</td></tr>";
                }

                $output .= '</tbody></table>';

                return $this->object->prepareTextareaOutput($output, TRUE);
        }

        public function getAfterParticipationSuppressionAnswerPostVars()
        {
                return array();
        }

        public function getAfterParticipationSuppressionQuestionPostVars()
        {
                return array();
        }
        
        protected function renderAggregateView($answeringFequencies)
        {
                $tpl = new ilTemplate('tpl.il_as_aggregated_answers_table.html', true, true, "Modules/TestQuestionPool");
                
                $tpl->setCurrentBlock('headercell');
                $tpl->setVariable('HEADER', $this->lng->txt('tst_answer_aggr_answer_header'));
                $tpl->parseCurrentBlock();
                
                $tpl->setCurrentBlock('headercell');
                $tpl->setVariable('HEADER', $this->lng->txt('tst_answer_aggr_frequency_header'));
                $tpl->parseCurrentBlock();
                
                foreach($answeringFequencies as $answerIndex => $answeringFrequency)
                {
                        $tpl->setCurrentBlock('aggregaterow');
                        $tpl->setVariable('OPTION', $this->object->getAnswer($answerIndex)->getAnswerText());
                        $tpl->setVariable('COUNT', $answeringFrequency);
                        $tpl->parseCurrentBlock();
                }
                
                return $tpl->get();
        }
        
        protected function aggregateAnswers($givenSolutionRows, $existingAnswerOptions)
        {
                $answeringFequencies = array();
                
                foreach($existingAnswerOptions as $answerIndex => $answerOption)
                {
                        $answeringFequencies[$answerIndex] = 0;
                }
                
                foreach($givenSolutionRows as $solutionRow)
                {
                        $answeringFequencies[$solutionRow['value1']]++;
                }
                
                return $answeringFequencies;
        }

        public function getAggregatedAnswersView($relevant_answers)
        {
                return $this->renderAggregateView(
                        $this->aggregateAnswers( $relevant_answers, $this->object->getAnswers() )
                );
        }
        
        protected function getPreviousSolutionConfirmationCheckboxHtml()
        {
                if( !count($this->object->currentSolution) )
                {
                        return '';
                }
                
                $button = ilLinkButton::getInstance();
                $button->setCaption('use_previous_solution');
                
                $button->setUrl(ilUtil::appendUrlParameterString(
                        $this->ctrl->getLinkTargetByClass($this->getTargetGuiClass(), $this->getQuestionActionCmd()),
                        $this->buildSelectionParameter($this->object->currentSolution, null)
                ));
                
                $tpl = new ilTemplate('tpl.tst_question_additional_behaviour_checkbox.html', true, true, 'Modules/TestQuestionPool');
                $tpl->setVariable('BUTTON', $button->render());
                
                return $tpl->get();
        }
}