public void HideOrShowQuizFromSelectedSlide(Slide slide)
{
var slideSessionModel = this.GetSlideSessionModel();
var slideQuestionModel = slideSessionModel.Questions.First(q => q.QuestionInfoSlideId == slide.SlideID ||
q.QuestionTimerSlideId == slide.SlideID ||
q.ResultsSlideId == slide.SlideID);
if (slideQuestionModel == null)
{
throw new Exception("No existing arsnova question on slide.");
}
var questionInfoSlide = SlideTracker.GetSlideById(slideQuestionModel.QuestionInfoSlideId);
var questionTimerSlide = SlideTracker.GetSlideById(slideQuestionModel.QuestionTimerSlideId.Value);
var resultsSlide = SlideTracker.GetSlideById(slideQuestionModel.ResultsSlideId.Value);
if (slideQuestionModel.Hidden)
{
questionInfoSlide.SlideShowTransition.Hidden = MsoTriState.msoFalse;
questionTimerSlide.SlideShowTransition.Hidden = MsoTriState.msoFalse;
resultsSlide.SlideShowTransition.Hidden = MsoTriState.msoFalse;
}
else
{
questionInfoSlide.SlideShowTransition.Hidden = MsoTriState.msoTrue;
questionTimerSlide.SlideShowTransition.Hidden = MsoTriState.msoTrue;
resultsSlide.SlideShowTransition.Hidden = MsoTriState.msoTrue;
}
slideQuestionModel.Hidden = !slideQuestionModel.Hidden;
// recalculate question index: asrnova.click index needs to start with 0 and should not leave out any number!
var ignoredQuestions = 0;
for (var i = 0; i < slideSessionModel.Questions.Count; i++)
{
var question = slideSessionModel.Questions.FirstOrDefault(q => q.Index == i);
if (question == null)
{
continue;
}
if (question.Hidden)
{
ignoredQuestions++;
}
else
{
question.RecalculatedOnlineIndex = question.Index - ignoredQuestions;
}
}
PresentationInformationStore.StoreSlideSessionModel(slideSessionModel);
}
