/// <summary>
/// Ask for space to PreviusLabel B if it can leave the space inorder to overcome the overlap.
/// PreviusLabel B asks for space to the previous label C.. and so on
/// </summary>
/// <param name="labelA">CircularLabel looking for space to overcome the overlap</param>
private static Boolean AskSpaceToPreviusLabel(CircularLabel labelA, Double requiredVerticalOffset, Int32 noOfIteration)
{
Boolean retValue = true;
Double gap = 0;
if (labelA.IsFirst)
{
if (labelA.Position.Y > requiredVerticalOffset)
{
retValue = labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return(retValue);
}
else
{
return(false);
}
}
gap = VerticalSpcaeBetweenLabels(labelA, labelA.PreviusLabel);
if (gap > requiredVerticalOffset)
{
retValue = labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return(retValue);
}
else
{
retValue = AskSpaceToPreviusLabel(labelA.PreviusLabel, requiredVerticalOffset, noOfIteration);
if (retValue)
{
retValue = labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return(retValue);
}
else
{
retValue = false;
}
}
return(retValue);
}
/// <summary>
/// Ask for space to NextLabel if NextLabel can leave the space.
/// NextLabel B asks for space to the next label C.. and so on
/// </summary>
/// <param name="labelA">CircularLabel looking for space to overcome the overlap</param>
private static Boolean AskSpaceToNextLabel(CircularLabel label, Double requiredVerticalOffset, Int32 noOfIteration)
{
Boolean retValue = true;
Double gap = 0;
if (label.IsLast)
{
if (label.Position.Y + label.Height < label.Boundary.Height &&
label.Boundary.Height - (label.Position.Y + label.Height) > requiredVerticalOffset)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return(retValue);
}
else
{
return(false);
}
}
gap = VerticalSpcaeBetweenLabels(label, label.NextLabel);
if (gap > requiredVerticalOffset)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return(retValue);
}
else
{
retValue = AskSpaceToNextLabel(label.NextLabel, requiredVerticalOffset, noOfIteration);
if (retValue)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return(retValue);
}
else
{
retValue = false;
}
}
return(retValue);
}
/// <summary>
/// Ask for space to PreviusLabel B if it can leave the space inorder to overcome the overlap.
/// PreviusLabel B asks for space to the previous label C.. and so on
/// </summary>
/// <param name="labelA">CircularLabel looking for space to overcome the overlap</param>
private static Boolean AskSpaceToPreviusLabel(CircularLabel labelA, Double requiredVerticalOffset, Int32 noOfIteration)
{
Boolean retValue = true;
Double gap = 0;
if (labelA.IsFirst)
{
if (labelA.Position.Y > requiredVerticalOffset)
{
retValue = labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return retValue;
}
else
return false;
}
gap = VerticalSpcaeBetweenLabels(labelA, labelA.PreviusLabel);
if (gap > requiredVerticalOffset)
{
retValue =labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return retValue;
}
else
{
retValue = AskSpaceToPreviusLabel(labelA.PreviusLabel, requiredVerticalOffset, noOfIteration);
if (retValue)
{
retValue = labelA.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Counterclockwise);
return retValue;
}
else
retValue = false;
}
return retValue;
}
/// <summary>
/// Ask for space to NextLabel if NextLabel can leave the space.
/// NextLabel B asks for space to the next label C.. and so on
/// </summary>
/// <param name="labelA">CircularLabel looking for space to overcome the overlap</param>
private static Boolean AskSpaceToNextLabel(CircularLabel label, Double requiredVerticalOffset, Int32 noOfIteration)
{
Boolean retValue = true;
Double gap = 0;
if (label.IsLast)
{
if (label.Position.Y + label.Height < label.Boundary.Height &&
label.Boundary.Height - (label.Position.Y + label.Height) > requiredVerticalOffset)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return retValue;
}
else
return false;
}
gap = VerticalSpcaeBetweenLabels(label, label.NextLabel);
if (gap > requiredVerticalOffset)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return retValue;
}
else
{
retValue = AskSpaceToNextLabel(label.NextLabel, requiredVerticalOffset, noOfIteration);
if (retValue)
{
retValue = label.RotateByVerticalOffset(requiredVerticalOffset, SweepDirection.Clockwise);
return retValue;
}
else
retValue = false;
}
return retValue;
}