private static QuestionReference generateQuestion32()
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = true;
q1.QuestionText = "Which of the following did cause an allergic reaction for you?";
q1.AnswerType = DataType.BOOLEAN;
q1.QuestionType = new Choice(1, 7);
List <AnswerOption> list = new List <AnswerOption> ();
AnswerOption a11 = new AnswerOption("Nuts");
AnswerOption a12 = new AnswerOption("Milk");
AnswerOption a13 = new AnswerOption("Egg");
AnswerOption a14 = new AnswerOption("Egg");
AnswerOption a15 = new AnswerOption("Soy");
AnswerOption a16 = new AnswerOption("Fish");
AnswerOption a17 = new AnswerOption("Other");
list.Add(a11);
list.Add(a12);
list.Add(a13);
list.Add(a14);
list.Add(a15);
list.Add(a16);
list.Add(a17);
q1.PossibleAnswers = list;
qr1.Question = q1;
return(qr1);
}
private static QuestionReference generateQuestion23()
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = true;
q1.QuestionText = "How would you describe your heat comfort?";
q1.AnswerType = DataType.STRING;
q1.QuestionType = new Choice(1, 1);
List <AnswerOption> list = new List <AnswerOption> ();
AnswerOption a11 = new AnswerOption("Freezing");
AnswerOption a12 = new AnswerOption("Cold");
AnswerOption a13 = new AnswerOption("Acceptable");
AnswerOption a14 = new AnswerOption("Warm");
AnswerOption a15 = new AnswerOption("Hot");
list.Add(a11);
list.Add(a12);
list.Add(a13);
list.Add(a14);
list.Add(a15);
q1.PossibleAnswers = list;
qr1.Question = q1;
return(qr1);
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.FreeValueView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public FreeValueView(QuestionReference qr, bool isMandatory) : base(qr, isMandatory)
{
QuestionLabel = new Label {
Text = "",
FontSize = 32
};
// TODO Differentiate the keyboard type depending on the content
AnswerEditor = new Editor {
Keyboard = Keyboard.Create(KeyboardFlags.All),
VerticalOptions = LayoutOptions.FillAndExpand
};
this.Children.Add(QuestionLabel);
this.Children.Add(AnswerEditor);
AnswerEditor.TextChanged += (sender, e) => {
if (AnswerEditor.Text != null && AnswerEditor.Text != "")
{
this.IsAnswered = true;
this.answers = new HashSet <AnswerOption> {
new AnswerOption(AnswerEditor.Text)
};
}
else
{
this.IsAnswered = false;
}
};
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.QuestionView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public QuestionView(QuestionReference qr, bool isMandatory)
{
this.VerticalOptions = LayoutOptions.FillAndExpand;
this.IsMandatory = isMandatory;
question = qr;
answers = new HashSet <AnswerOption> ();
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.SingleChoiceView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public SingleChoiceView(QuestionReference qr, bool isMandatory) : base(qr, isMandatory)
{
QuestionLabel = new Label {
Text = "",
FontSize = 32
};
AnswerPicker = new Picker();
AnswerPicker.SelectedIndexChanged += (sender, e) => {
if (AnswerPicker.SelectedIndex != -1)
{
this.IsAnswered = true;
this.answers = new HashSet <AnswerOption> {
new AnswerOption(AnswerPicker.Items [AnswerPicker.SelectedIndex])
};
}
else
{
this.IsAnswered = false;
};
};
this.Children.Add(QuestionLabel);
this.Children.Add(AnswerPicker);
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.SingleChoiceView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="questionText">Question text.</param>
/// <param name="options">Options.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public SingleChoiceView(QuestionReference qr, string questionText, List <string> options, bool isMandatory) : this(qr, isMandatory)
{
QuestionLabel.Text = questionText;
foreach (string answer in options)
{
AnswerPicker.Items.Add(answer);
}
}
private static Prerequisite generatePrerequisite33(QuestionReference qr)
{
List <AnswerOption> preq = new List <AnswerOption> ();
AnswerOption a = new AnswerOption("Other");
preq.Add(a);
return(new Prerequisite(preq, qr, Prerequisite.PrOperator.OR));
}
private static Prerequisite generatePrerequisite22(QuestionReference qr)
{
List <AnswerOption> preq = new List <AnswerOption> ();
for (int i = 1; i < 4; i++)
{
AnswerOption a = new AnswerOption(i.ToString());
preq.Add(a);
}
return(new Prerequisite(preq, qr, Prerequisite.PrOperator.OR));
}
private static QuestionReference generateQuestionFreeM(String question, DataType answerType, Boolean mandatory)
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = mandatory;
q1.QuestionText = question;
q1.AnswerType = answerType;
q1.QuestionType = new FreeValue();
qr1.Question = q1;
return(qr1);
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.MultipleChocieView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public MultipleChocieView(QuestionReference qr, bool isMandatory) : base(qr, isMandatory)
{
QuestionLabel = new Label {
Text = "",
FontSize = 32
};
answerOptions = new StackLayout {
};
this.Children.Add(QuestionLabel);
this.Children.Add(answerOptions);
}
/// <summary>
/// Calculates the prerequisite.
/// </summary>
/// <returns><c>true</c>, if prerequisite was fullfilled, <c>false</c> otherwise.</returns>
/// <param name="question">Question.</param>
/// <param name="views">Views.</param>
public static bool calculatePrerequisite(QuestionReference question, LinkedList <QuestionView> views)
{
bool value = false;
bool found = false;
if (question.Prerequisites.Count == 0)
{
return(true);
}
foreach (Prerequisite p in question.Prerequisites)
{
foreach (QuestionView qv in views)
{
if (p.Question.Equals(qv.question))
{
foreach (AnswerOption a in p.Answers)
{
if (qv.answers.Contains(a))
{
value = true;
if (p.Op == Prerequisite.PrOperator.OR)
{
break;
}
}
else
{
if (p.Op == Prerequisite.PrOperator.AND)
{
return(false);
}
}
}
found = true;
break;
}
}
if (!found)
{
return(false);
}
found = false;
}
return(value);
}
private static SurveyPart generatePart2()
{
SurveyPart sp1 = new SurveyPart();
sp1.Scheduler = new Scheduler(Schedule.DAILY);
LinkedList <QuestionReference> list = new LinkedList <QuestionReference> ();
QuestionReference qr21 = generateQuestion21();
list.AddLast(qr21);
QuestionReference qr22 = generateQuestionFreeM("What is the reason of your discomfort", DataType.STRING, true);
qr22.Prerequisites.Add(generatePrerequisite22(qr21));
list.AddLast(qr22);
list.AddLast(generateQuestion23());
list.AddLast(generateQuestionFreeM("What is the ambient temperature?", DataType.FLOAT, true));
sp1.Questions = list;
return(sp1);
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.MultipleChocieView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="questionText">Question text.</param>
/// <param name="options">Options.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public MultipleChocieView(QuestionReference qr, string questionText, List <string> options, bool isMandatory) : this(qr, isMandatory)
{
this.IsMandatory = isMandatory;
QuestionLabel.Text = questionText;
foreach (string answer in options)
{
CheckBox answerCheckbox = new CheckBox();
answerCheckbox.CheckedChanged += (sender, e) => {
{
if (answerCheckbox.Checked == true)
{
this.answers.Add(new AnswerOption(answer));
this.IsAnswered = true;
}
else
{
this.answers.Remove(new AnswerOption(answer));
bool foundChecked = false;
foreach (StackLayout sl in this.answerOptions.Children)
{
CheckBox c = (CheckBox)sl.Children[0];
if (c.Checked == true)
{
foundChecked = true;
}
}
this.IsAnswered = foundChecked;
}
};
};
answerOptions.Children.Add(new StackLayout {
Orientation = StackOrientation.Horizontal,
HeightRequest = 40,
Children =
{
answerCheckbox,
new Label {
Text = answer
}
}
});
}
}
private static QuestionReference generateQuestion31()
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = true;
q1.QuestionText = "Did you experience any allergic reactions recently?";
q1.AnswerType = DataType.BOOLEAN;
q1.QuestionType = new Choice(1, 1);
List <AnswerOption> list = new List <AnswerOption> ();
AnswerOption a11 = new AnswerOption("Yes");
AnswerOption a12 = new AnswerOption("No");
list.Add(a11);
list.Add(a12);
q1.PossibleAnswers = list;
qr1.Question = q1;
return(qr1);
}
private static QuestionReference generateQuestion21()
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = true;
q1.QuestionText = "How are you feeling today?";
q1.AnswerType = DataType.INTEGER;
q1.QuestionType = new Choice(1, 1);
List <AnswerOption> list = new List <AnswerOption> ();
for (int i = 1; i < 11; i++)
{
AnswerOption a = new AnswerOption(i.ToString());
list.Add(a);
}
q1.PossibleAnswers = list;
qr1.Question = q1;
return(qr1);
}
/// <summary>
/// Moves to the previous question.
/// </summary>
/// <returns>The previous question.</returns>
public QuestionView PreviousQuestion()
{
QuestionView currentView = generatedViews [currentQuestion.Value];
LinkedListNode <QuestionView> currentViewNode = CurrentViews.Find(currentView);
if (currentViewNode.Previous == null)
{
return(null);
}
QuestionView previousView = currentViewNode.Previous.Value;
QuestionReference previousReference = previousView.question;
while (currentQuestion.Value != previousReference)
{
if (!RegressQuestion())
{
throw new ArgumentOutOfRangeException("Could not find the predecessor for the question");
}
}
return(previousView);
}
private static QuestionReference generateQuestion11()
{
QuestionReference qr1 = new QuestionReference();
Question q1 = new Question();
q1.IsMandatory = true;
q1.QuestionText = "What is your gender?";
q1.AnswerType = DataType.STRING;
q1.QuestionType = new Choice(1, 1);
List <AnswerOption> list = new List <AnswerOption> ();
AnswerOption a11 = new AnswerOption("Male");
AnswerOption a12 = new AnswerOption("Female");
AnswerOption a13 = new AnswerOption("Other");
list.Add(a11);
list.Add(a12);
list.Add(a13);
q1.PossibleAnswers = list;
qr1.Question = q1;
return(qr1);
}
/// <summary>
/// Gets the question view specific to the reference.
/// </summary>
/// <returns>The question view.</returns>
/// <param name="qref">Question reference.</param>
private QuestionView GetQuestionView(QuestionReference qref)
{
var qtype = qref.Question.QuestionType;
if (qtype is FreeValue)
{
string questionText = qref.Question.QuestionText;
return(new FreeValueView(qref, questionText, qref.Question.IsMandatory));
}
else if (qtype is Choice)
{
string questionText = qref.Question.QuestionText;
if (((Choice)qtype).minNumOfAnswers == 1 && ((Choice)qtype).maxNumOfAnswers == 1)
{
List <string> answerStrings = new List <string> ();
foreach (AnswerOption ao in qref.Question.PossibleAnswers)
{
answerStrings.Add(ao.Content);
}
return(new SingleChoiceView(qref, questionText, answerStrings, qref.Question.IsMandatory));
}
else
{
List <string> answerStrings = new List <string> ();
foreach (AnswerOption ao in qref.Question.PossibleAnswers)
{
answerStrings.Add(ao.Content);
}
return(new MultipleChocieView(qref, questionText, answerStrings, qref.Question.IsMandatory));
}
}
else
{
throw new ArgumentException("Question Type not supported");
}
}
private static SurveyPart generatePart3()
{
SurveyPart sp1 = new SurveyPart();
sp1.Scheduler = new Scheduler(Schedule.DAILY);
LinkedList <QuestionReference> list = new LinkedList <QuestionReference> ();
QuestionReference qr31 = generateQuestion31();
list.AddLast(qr31);
QuestionReference qr32 = generateQuestion32();
qr32.Prerequisites.Add(generatePrerequisite32(qr31));
list.AddLast(qr32);
QuestionReference qr33 = generateQuestionFreeM("Please enter the other food(s) which caused an allergic reaction for you", DataType.STRING, true);
qr33.Prerequisites.Add(generatePrerequisite33(qr32));
list.AddLast(qr33);
QuestionReference qr34 = generateQuestionFreeM("Do you have any additional comments?", DataType.STRING, true);
list.AddLast(qr34);
sp1.Questions = list;
return(sp1);
}
public Prerequisite(List <AnswerOption> answers, QuestionReference qr, PrOperator oper)
{
Answers = answers;
Question = qr;
Op = oper;
}
/// <summary>
/// Initializes a new instance of the <see cref="Surveys.FreeValueView"/> class.
/// </summary>
/// <param name="qr">Qr.</param>
/// <param name="questionText">Question text.</param>
/// <param name="isMandatory">If set to <c>true</c> is mandatory.</param>
public FreeValueView(QuestionReference qr, string questionText, bool isMandatory) : this(qr, isMandatory)
{
QuestionLabel.Text = questionText;
this.IsMandatory = isMandatory;
this.IsAnswered = false;
}
