public MatchingQuestionPage(Test test, int currentQuestion, Models.TestSolving.TestResults testResults)
{
this.testResults = testResults;
this.test = test;
this.curQ = currentQuestion;
startTime = DateTime.Now;
answered = false;
InitializeComponent();
MatchingQuestion question = (MatchingQuestion)test[curQ];
BindingContext = vm = new ViewModels.TestSolving.MatchingQSolveViewModel {
Lefts = new ObservableCollection <QPart>(
question.Lefts.Select((text) => new QPart {
Text = text
})
),
Rights = new ObservableCollection <QPart>(
question.Rights.Select((text) => new QPart {
Text = text
})
),
Relation = new ObservableCollection <int?>(
question.Relation
)
};
QuestionLabel.Text = string.Join("",
(curQ + 1).ToString(),
". ",
test[curQ].Text
);
limit = test.TimeLimit.Value;
if (test.Mode == Models.TimeMode.limitForQuestion)
{
TimeLeftBar.Progress = 1;
Device.StartTimer(
TimeSpan.FromSeconds(0.1),
() => {
if (answered)
{
return(false);
}
if (PassedTime() >= limit)
{
TimeExpired();
return(false);
}
TimeLeftBar.Progress = (limit - PassedTime()).TotalSeconds / limit.TotalSeconds;
return(true);
}
);
}
else
{
TimeLeftBar.Progress = (limit - testResults.UsedTime).TotalSeconds / limit.TotalSeconds;
Device.StartTimer(
TimeSpan.FromSeconds(0.1),
() =>
{
if (answered)
{
return(false);
}
if (PassedTime() + testResults.UsedTime >= limit)
{
TestTimeExpired();
return(false);
}
TimeLeftBar.Progress = (limit - testResults.UsedTime - PassedTime()).TotalSeconds /
limit.TotalSeconds;
return(true);
}
);
}
}
protected bool Equals(MatchingQuestion other)
{
return(Equals(Terms, other.Terms) && Equals(Definitions, other.Definitions));
}