/// <summary>
/// Given a pair number function returns the major and minor colors in that order
/// </summary>
/// <param name="pairNumber">Pair number of the color to be fetched</param>
/// <returns></returns>
internal static ColorMap.ColorPair GetColorFromPairNumber(int pairNumber)
{
ColorMap obj = new ColorMap();
// The function supports only 1 based index. Pair numbers valid are from 1 to 25
int minorSize = obj.ColorMapMinor.Length;
int majorSize = obj.ColorMapMajor.Length;
if (pairNumber < 1 || pairNumber > minorSize * majorSize)
{
throw new ArgumentOutOfRangeException(
string.Format("Argument PairNumber:{0} is outside the allowed range", pairNumber));
}
// Find index of major and minor color from pair number
int zeroBasedPairNumber = pairNumber - 1;
int majorIndex = zeroBasedPairNumber / minorSize;
int minorIndex = zeroBasedPairNumber % minorSize;
// Construct the return val from the arrays
ColorMap.ColorPair pair = new ColorMap.ColorPair()
{
majorColor = obj.ColorMapMajor[majorIndex],
minorColor = obj.ColorMapMinor[minorIndex]
};
// return the value
return(pair);
}
public override string ToString()
{
string manual = "";
for (int i = 1; i < 26; i++)
{
ColorMap.ColorPair pair = NumToColor.GetColorFromPairNumber(i);
manual += String.Format("Pair Number - {0}: Colors - {1} \n", i, pair.ToString());
}
return(manual);
}
private static void Main(string[] args)
{
int pairNumber = 4;
print manual = new print();
//Console.WriteLine(manual.ToString());
ColorMap.ColorPair testPair1 = NumToColor.GetColorFromPairNumber(pairNumber);
Console.WriteLine("[In]Pair Number: {0},[Out] Colors: {1}\n", pairNumber, testPair1);
Debug.Assert(testPair1.majorColor == Color.White);
Debug.Assert(testPair1.minorColor == Color.Brown);
pairNumber = 5;
testPair1 = NumToColor.GetColorFromPairNumber(pairNumber);
Console.WriteLine("[In]Pair Number: {0},[Out] Colors: {1}\n", pairNumber, testPair1);
Debug.Assert(testPair1.majorColor == Color.White);
Debug.Assert(testPair1.minorColor == Color.SlateGray);
pairNumber = 23;
testPair1 = NumToColor.GetColorFromPairNumber(pairNumber);
Console.WriteLine("[In]Pair Number: {0},[Out] Colors: {1}\n", pairNumber, testPair1);
Debug.Assert(testPair1.majorColor == Color.Violet);
Debug.Assert(testPair1.minorColor == Color.Green);
ColorMap.ColorPair testPair2 = new ColorMap.ColorPair()
{
majorColor = Color.Yellow, minorColor = Color.Green
};
pairNumber = ColorToNum.GetPairNumberFromColor(testPair2);
Console.WriteLine("[In]Colors: {0}, [Out] PairNumber: {1}\n", testPair2, pairNumber);
Debug.Assert(pairNumber == 18);
testPair2 = new ColorMap.ColorPair()
{
majorColor = Color.Red, minorColor = Color.Blue
};
pairNumber = ColorToNum.GetPairNumberFromColor(testPair2);
Console.WriteLine("[In]Colors: {0}, [Out] PairNumber: {1}", testPair2, pairNumber);
Debug.Assert(pairNumber == 6);
}
/// <summary>
/// Given the two colors the function returns the pair number corresponding to them
/// </summary>
/// <param name="pair">Color pair with major and minor color</param>
/// <returns></returns>
internal static int GetPairNumberFromColor(ColorMap.ColorPair pair)
{
ColorMap obj = new ColorMap();
// Find the major color in the array and get the index
int majorIndex = -1;
for (int i = 0; i < obj.ColorMapMajor.Length; i++)
{
if (obj.ColorMapMajor[i] == pair.majorColor)
{
majorIndex = i;
break;
}
}
// Find the minor color in the array and get the index
int minorIndex = -1;
for (int i = 0; i < obj.ColorMapMinor.Length; i++)
{
if (obj.ColorMapMinor[i] == pair.minorColor)
{
minorIndex = i;
break;
}
}
// If colors can not be found throw an exception
if (majorIndex == -1 || minorIndex == -1)
{
throw new ArgumentException(
string.Format("Unknown Colors: {0}", pair.ToString()));
}
// Compute pair number and Return
// (Note: +1 in compute is because pair number is 1 based, not zero)
return((majorIndex * obj.ColorMapMinor.Length) + (minorIndex + 1));
}
