/// <summary>
/// Return the color as gray components operands that define this brush
/// Use formula according spec
/// </summary>
public List <Operand> GetGrayColorOperands()
{
List <Operand> operands = new List <Operand>();
var realOp = new RealOperand(0.6);
operands.Add(realOp);
return(operands);
}
/// <summary>
/// Return the color as gray components operands that define this brush
/// Use formula according spec
/// </summary>
public List <Operand> GetGrayColorOperands()
{
List <Operand> operands = new List <Operand>();
double gray = 0.3 * values[0] + 0.59 * values[1] + 0.11 * values[2];
var realOp = new RealOperand(gray);
operands.Add(realOp);
return(operands);
}
/// <summary>
/// Return the color components as operands that define this brush
/// </summary>
public List <Operand> GetColorOperands()
{
List <Operand> operands = new List <Operand>();
foreach (var val in values)
{
var realOp = new RealOperand(val);
operands.Add(realOp);
}
return(operands);
}
/// <summary>
/// Return the color as RGB components as operands that define this brush
/// </summary>
public List <Operand> GetRGBColorOperands()
{
List <Operand> operands = new List <Operand>();
for (int i = 0; i < 3; i++)
{
var realOp = new RealOperand(0);
operands.Add(realOp);
}
return(operands);
}
/// <summary>
/// Return the color as RGB components operands that define this brush
/// Here we don't use the formula from the spec, we use our formula that
/// is needed to get a correct RGB value
/// </summary>
public List <Operand> GetRGBColorOperands()
{
var color = ColorSpaceConverter.ConvertCmykToRgb(values[0], values[1], values[2], values[3]);
List <Operand> operands = new List <Operand>();
var realOp = new RealOperand(color.R);
operands.Add(realOp);
realOp = new RealOperand(color.G);
operands.Add(realOp);
realOp = new RealOperand(color.B);
operands.Add(realOp);
return(operands);
}
/// <summary>
/// Return the color as CMYK components operands that define this brush
/// Use formula according spec
/// </summary>
public List <Operand> GetCMYKColorOperands()
{
List <Operand> operands = new List <Operand>();
var realOp = new RealOperand(0.4);
operands.Add(realOp);
realOp = new RealOperand(0.3);
operands.Add(realOp);
realOp = new RealOperand(0.3);
operands.Add(realOp);
realOp = new RealOperand(0.1);
operands.Add(realOp);
return(operands);
}
/// <summary>
/// Return the color as CMYK components operands that define this brush
/// Use formula according spec
/// </summary>
public List <Operand> GetCMYKColorOperands()
{
List <Operand> operands = new List <Operand>();
var c = 1.0 - values[0];
var m = 1.0 - values[1];
var y = 1.0 - values[2];
var k = Math.Min(Math.Min(c, m), y);
var realOp = new RealOperand(c);
operands.Add(realOp);
realOp = new RealOperand(m);
operands.Add(realOp);
realOp = new RealOperand(y);
operands.Add(realOp);
realOp = new RealOperand(k);
operands.Add(realOp);
return(operands);
}
/// <summary>
/// Convert the given values to the destination color space values
/// </summary>
private List <double> ConvertValuesToAlternativeColorSpaceValues(List <double> values)
{
var operandStack = interpreter.OperandStack;
foreach (var val in values)
{
var realOp = new RealOperand(val);
operandStack.Push(realOp);
}
interpreter.Execute(tintTransformationProcedure);
var newValues = new List <double>();
for (int i = 0; i < alternativeColorSpace.GetNumberOfValuesPerColor(); i++)
{
var real = operandStack.PopRealValue();
newValues.Add(real);
}
newValues.Reverse();
return(values);
}