iOS gets CMYK values for Uicolor objects

/**

* gets The CMYK string value of the Uicolor object .

*/

-(nsstring *) Getcmykstringvaluebycolor: (uicolor *) origincolor{

//Method provided by the Colours class extension

nsdictionary *cmykdict = [selfgetcmykvaluebycolor: Origincolor];

return [nsstringstringwithformat:@ "(%0.2f,%0. 2f,%0.2f,%0.2f) ",

[cmykdict[@ "C"]floatvalue],

[cmykdict[@ "M"]floatvalue],

[cmykdict[@ "Y"]floatvalue],

[cmykdict[@ "K"]floatvalue]];

}

/**

* gets The CMYK value of the Uicolor object .

*

* @return

*/

-(nsdictionary *) Getcmykvaluebycolor: (uicolor *) origincolor

{

//Convert RGB to CMY

nsdictionary *rgb = [selfgetrgbdictionarybycolor: Origincolor];

CGFloat C =1 -[rgb[@ "R"]floatvalue];

CGFloat M =1 -[rgb[@ "G"]floatvalue];

CGFloat Y =1 -[rgb[@ "B"]floatvalue];

//Find K

CGFloat K =min(1,min(C,min(Y, M)));

if (K = =1) {

C =0;

M =0;

Y =0;

}

Else {

void (^newcmyk) (cgfloat *);

Newcmyk = ^ (cgfloat *x) {

*x = (*x-k)/(1 -K);

};

Newcmyk (&C);

Newcmyk (&M);

Newcmyk (&y);

}

return @{@ "C":@ (c),

@ "M":@ (m),

@ "y":@ (y),

@ "K":@ (k)};

}

/**

* gets The RGB value of the Uicolor object .

*

* @return Dictionary objects that contain RGB values.

*/

-(nsdictionary *) Getrgbdictionarybycolor: (uicolor *) origincolor

{

cgfloat r=0, g=0, b=0, a=0;

if ([selfrespondstoselector:@selector(getRed:green:blue:alpha:)]) {

[Origincolorgetred: &rgreen: &gBlue: &bAlpha:&a];

}

Else {

Const cgfloat *components =cgcolorgetcomponents(origincolor. Cgcolor);

r = components[0];

g = components[1];

b = components[2];

A = components[3];

}

return @{@ "R":@ (R),

@ "G":@ (g),

@ "B":@ (b),

@ "A":@ (a)};

}

iOS gets CMYK values for Uicolor objects