/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="PieItem"/> object from which to copy</param>
public PieItem(PieItem rhs)
: base(rhs)
{
_pieValue = rhs._pieValue;
_fill = rhs._fill.Clone();
Border = rhs._border.Clone();
_displacement = rhs._displacement;
_labelDetail = rhs._labelDetail.Clone();
_labelType = rhs._labelType;
_valueDecimalDigits = rhs._valueDecimalDigits;
_percentDecimalDigits = rhs._percentDecimalDigits;
}
/// <summary>
/// Build the string that will be displayed as the slice label as determined by
/// <see c_ref="LabelType"/>.
/// </summary>
/// <param name="curve">reference to the <see c_ref="PieItem"/></param>
private static void BuildLabelString(PieItem curve)
{
//set up label string formatting
NumberFormatInfo labelFormat = (NumberFormatInfo)NumberFormatInfo.CurrentInfo.Clone();
labelFormat.NumberDecimalDigits = curve._valueDecimalDigits;
labelFormat.PercentPositivePattern = 1; //no space between number and % sign
labelFormat.PercentDecimalDigits = curve._percentDecimalDigits;
switch (curve._labelType)
{
case PieLabelType.Value:
curve._labelStr = curve._pieValue.ToString("F", labelFormat);
break;
case PieLabelType.Percent:
curve._labelStr = (curve._sweepAngle / 360).ToString("P", labelFormat);
break;
case PieLabelType.Name_Value:
curve._labelStr = curve._label._text + ": " + curve._pieValue.ToString("F", labelFormat);
break;
case PieLabelType.Name_Percent:
curve._labelStr = curve._label._text + ": " + (curve._sweepAngle / 360).ToString("P", labelFormat);
break;
case PieLabelType.Name_Value_Percent:
curve._labelStr = curve._label._text + ": " + curve._pieValue.ToString("F", labelFormat) +
" (" + (curve._sweepAngle / 360).ToString("P", labelFormat) + ")";
break;
case PieLabelType.Name:
curve._labelStr = curve._label._text;
break;
case PieLabelType.None:
default:
break;
}
}
/// <summary>
/// Build the string that will be displayed as the slice label as determined by
/// <see c_ref="LabelType"/>.
/// </summary>
/// <param name="curve">reference to the <see c_ref="PieItem"/></param>
private static void BuildLabelString( PieItem curve )
{
//set up label string formatting
NumberFormatInfo labelFormat = (NumberFormatInfo)NumberFormatInfo.CurrentInfo.Clone();
labelFormat.NumberDecimalDigits = curve._valueDecimalDigits;
labelFormat.PercentPositivePattern = 1; //no space between number and % sign
labelFormat.PercentDecimalDigits = curve._percentDecimalDigits;
switch ( curve._labelType )
{
case PieLabelType.Value:
curve._labelStr = curve._pieValue.ToString( "F", labelFormat );
break;
case PieLabelType.Percent:
curve._labelStr = ( curve._sweepAngle / 360 ).ToString( "P", labelFormat );
break;
case PieLabelType.Name_Value:
curve._labelStr = curve._label._text + ": " + curve._pieValue.ToString( "F", labelFormat );
break;
case PieLabelType.Name_Percent:
curve._labelStr = curve._label._text + ": " + ( curve._sweepAngle / 360 ).ToString( "P", labelFormat );
break;
case PieLabelType.Name_Value_Percent:
curve._labelStr = curve._label._text + ": " + curve._pieValue.ToString( "F", labelFormat ) +
" (" + ( curve._sweepAngle / 360 ).ToString( "P", labelFormat ) + ")";
break;
case PieLabelType.Name:
curve._labelStr = curve._label._text;
break;
case PieLabelType.None:
default:
break;
}
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see c_ref="PieItem"/> object from which to copy</param>
public PieItem( PieItem rhs )
: base( rhs )
{
_pieValue = rhs._pieValue;
_fill = rhs._fill.Clone();
Border = rhs._border.Clone();
_displacement = rhs._displacement;
_labelDetail = rhs._labelDetail.Clone();
_labelType = rhs._labelType;
_valueDecimalDigits = rhs._valueDecimalDigits;
_percentDecimalDigits = rhs._percentDecimalDigits;
}
/// <summary>
///Creates all the <see c_ref="PieItem"/>s for a single Pie Chart.
/// </summary>
/// <param name="values">double array containing all <see c_ref="PieItem.Value"/>s
/// for a single PieChart.
/// </param>
/// <param name="labels"> string array containing all <see c_ref="CurveItem.Label"/>s
/// for a single PieChart.
/// </param>
/// <returns>an array containing references to all <see c_ref="PieItem"/>s comprising
/// the Pie Chart.</returns>
public PieItem[] AddPieSlices( double[] values, string[] labels )
{
PieItem[] slices = new PieItem[values.Length];
for ( int x = 0; x < values.Length; x++ )
{
slices[x] = new PieItem( values[x], labels[x] );
CurveList.Add( slices[x] );
}
return slices;
}
/// <summary>
/// Add a <see c_ref="PieItem"/> to the display, providing a gradient fill for the pie color.
/// </summary>
/// <param name="value">The value associated with this <see c_ref="PieItem"/> instance.</param>
/// <param name="color1">The starting display color for the gradient <see c_ref="Fill"/> for this
/// <see c_ref="PieItem"/> instance.</param>
/// <param name="color2">The ending display color for the gradient <see c_ref="Fill"/> for this
/// <see c_ref="PieItem"/> instance.</param>
/// <param name="fillAngle">The angle for the gradient <see c_ref="Fill"/>.</param>
/// <param name="displacement">The amount this <see c_ref="PieItem"/> instance will be
/// displaced from the center point.</param>
/// <param name="label">Text label for this <see c_ref="PieItem"/> instance.</param>
public PieItem AddPieSlice( double value, Color color1, Color color2, float fillAngle,
double displacement, string label )
{
PieItem slice = new PieItem( value, color1, color2, fillAngle, displacement, label );
CurveList.Add( slice );
return slice;
}
