void CXTColorRef::toHSB(double& h, double& s, double& b) const
{
int red = getRValue();
int green = getGValue();
int blue = getBValue();
int cmax = __max(red, __max(green, blue));
int cmin = __min(red, __min(green, blue));
b = ((double) cmax) / 255.0;
if (cmax != 0)
s = ((double) (cmax - cmin)) / ((double) cmax);
else
s = 0;
if (s == 0)
h = 0;
else
{
double redc = ((double) (cmax - red)) / ((double) (cmax - cmin));
double greenc = ((double) (cmax - green)) / ((double) (cmax - cmin));
double bluec = ((double) (cmax - blue)) / ((double) (cmax - cmin));
if (red == cmax)
h = bluec - greenc;
else if (green == cmax)
h = 2.0 + redc - bluec;
else
h = 4.0 + greenc - redc;
h /= 6.0;
if (h < 0)
h = h + 1.0;
}
}
CXTColorRef& CXTColorRef::blend(const CXTColorRef& clr, int opacity)
{
*this = RGB(BlendColor(clr.getRValue(), getRValue(), opacity),
BlendColor(clr.getGValue(), getGValue(), opacity),
BlendColor(clr.getBValue(), getBValue(), opacity));
return *this;
}
CXTColorRef& CXTColorRef::subtract(const CXTColorRef& clr)
{
*this = RGB(addColorValue(-clr.getRValue(), getRValue()),
addColorValue(-clr.getGValue(), getGValue()),
addColorValue(-clr.getBValue(), getBValue()));
return *this;
}
CXTColorRef& CXTColorRef::operator/=(COLORREF cr)
{
m_ColorRef = SafeRGB(
getRValue() / GetRValue(cr),
getGValue() / GetGValue(cr),
getBValue() / GetBValue(cr));
return *this;
}
//processes a statement
void processString(char *str){
Var *tmp = variables, *var1, *var2;
int varLen, opLen, isNumeric, var3;
char *lValue, *op, *rValue;
lValue = getVarName(str);
varLen = strlen(lValue);
op = getOp(str, varLen);
opLen = strlen(op);
rValue = getRValue(str, varLen, opLen);
var1 = getVar(lValue);
isNumeric = isnumeric(rValue);
if(1 == isNumeric){
var3 = atoi(rValue);
}
else{
var2 = getVar(rValue);
var3 = var2->value;
}
switch(op[0]){
case '+':
var1->value+=var3;
break;
case '-':
var1->value-=var3;
break;
case '*':
var1->value*=var3;
break;
case '/':
var1->value/=var3;
break;
}
}
