/// <summary>
/// Position choice boxes inside vertically oriented grid
/// </summary>
/// <param name="count">amount of child choice boxes</param>
private void FitChoiceBoxesVertical(int count)
{
double questionWidth = this.Width - 2 * BorderOffset - 2 * BorderThickness;
double questionHeight = this.Height - 2 * BorderOffset - 2 * BorderThickness;
double choiceBoxHeight = (questionHeight - (count - 1) * ItemsOffset) / count;
double choiceBoxWidth = questionWidth;
// if can't fit bubbles by height, do not add any bubbles
if (choiceBoxWidth < MinChoiceBoxSize)
{
return;
}
// if can't fit bubbles by width, reduce bubbles count and recalculate
while (choiceBoxHeight < MinChoiceBoxSize)
{
count--;
choiceBoxHeight = (questionHeight - (count - 1) * ItemsOffset) / count;
}
for (int i = 0; i < count; i++)
{
double topPosition = BorderOffset + i * ItemsOffset + i * choiceBoxHeight;
Rect choiceBoxArea = new Rect(BorderOffset, topPosition, choiceBoxWidth, choiceBoxHeight);
var choiceBox = new ChoiceBoxViewModel(string.Empty, choiceBoxArea, null, this);
this.ChoiceBoxes.Add(choiceBox);
}
this.optionsCount = this.ChoiceBoxes[0].BubblesCount;
}
/// <summary>
/// Creates copy of current question
/// </summary>
/// <returns>Question copy</returns>
public override BaseQuestionViewModel CreateCopy()
{
ChoiceBoxViewModel elementCopy = new ChoiceBoxViewModel(this.Name, this.Top, this.Left, this.Width, this.Height);
elementCopy.SelectedMapping = this.SelectedMapping;
foreach (BubbleViewModel bubble in this.Bubbles)
{
var bubbleCopy = new BubbleViewModel(bubble.Width, bubble.Height, bubble.Top, bubble.Left);
bubbleCopy.Name = bubble.Name;
elementCopy.bubbles.Add(bubbleCopy);
}
return(elementCopy);
}
/// <summary>
/// Applyes to current element style and properties of provided element
/// </summary>
/// <param name="ethalon">Ethalon element</param>
public void ApplyStyle(ChoiceBoxViewModel ethalon)
{
// update size
this.Width = ethalon.Width;
this.Height = ethalon.Height;
this.SelectedMapping = ethalon.SelectedMapping;
// update bubbles collection
this.Bubbles.Clear();
foreach (BubbleViewModel bubble in ethalon.Bubbles)
{
var newBubble = new BubbleViewModel(bubble.Width, bubble.Height, bubble.Top, bubble.Left);
newBubble.Name = bubble.Name;
this.Bubbles.Add(newBubble);
}
}
/// <summary>
/// Add new element via selection rectangle
/// </summary>
/// <param name="area">Element area</param>
public void AddQuestion(Rect area)
{
string nextName = NamingManager.GetNextAvailableElementName(this.PageQuestions);
BaseQuestionViewModel newQuestion;
if (this.IsAddingChoiceBox)
{
newQuestion = new ChoiceBoxViewModel(nextName, area);
this.IsAddingChoiceBox = false;
}
else
{
newQuestion = new GridViewModel(nextName, area);
this.IsAddingGrid = false;
}
this.OnAddQuestion(newQuestion);
newQuestion.IsSelected = true;
ActionTracker.TrackAction(new AddElementsAction(new[] { newQuestion }, this.PageQuestions));
}