Value* Color::multiply(Value* v) {
Color* c;
NumberValue* n;
int result;
if (v->type == COLOR) {
c = static_cast<Color*>(v);
result = color[RGB_RED] * c->getRed();
color[RGB_RED] = max(min(result, 255), 0);
result = color[RGB_GREEN] * c->getGreen();
color[RGB_GREEN] = max(min(result, 255), 0);
result = color[RGB_BLUE] * c->getBlue();
color[RGB_BLUE] = max(min(result, 255), 0);
} else if (v->type == Value::NUMBER ||
v->type == Value::PERCENTAGE ||
v->type == Value::DIMENSION) {
n = static_cast<NumberValue*>(v);
color[RGB_RED] *= n->getValue();
color[RGB_GREEN] *= n->getValue();
color[RGB_BLUE] *= n->getValue();
} else {
throw new ValueException("You can only multiply a color by a \
color or a number.");
}
valueChanged = true;
return this;
}
Value* Color::substract(Value* v) {
Color* c;
NumberValue* n;
if (v->type == COLOR) {
c = static_cast<Color*>(v);
color[RGB_RED] = color[RGB_RED] > c->getRed() ?
color[RGB_RED] - c->getRed() : 0;
color[RGB_GREEN] = color[RGB_GREEN] > c->getGreen() ?
color[RGB_GREEN] - c->getGreen() : 0;
color[RGB_BLUE] = color[RGB_BLUE] > c->getBlue() ?
color[RGB_BLUE] - c->getBlue() : 0;
} else if (v->type == Value::NUMBER ||
v->type == Value::PERCENTAGE ||
v->type == Value::DIMENSION) {
n = static_cast<NumberValue*>(v);
color[RGB_RED] -= n->getValue();
color[RGB_GREEN] -= n->getValue();
color[RGB_BLUE] -= n->getValue();
} else {
throw new ValueException("You can only substract a color or \
a number from a color.");
}
valueChanged = true;
return this;
}
Value* Color::add(Value* v) {
Color* c;
NumberValue* n;
StringValue* s;
string* str;
if (v->type == COLOR) {
c = static_cast<Color*>(v);
color[RGB_RED] += c->getRed();
color[RGB_GREEN] += c->getGreen();
color[RGB_BLUE] += c->getBlue();
} else if (v->type == NUMBER ||
v->type == PERCENTAGE ||
v->type == DIMENSION) {
n = static_cast<NumberValue*>(v);
color[RGB_RED] += n->getValue();
color[RGB_GREEN] += n->getValue();
color[RGB_BLUE] += n->getValue();
} else if(v->type == STRING) {
str = this->getTokens()->toString();
s = new StringValue(new Token(*str, Token::STRING),
((StringValue*)v)->getQuotes());
s->add(v);
delete str;
return s;
}
valueChanged = true;
return this;
}
Value* NumberValue::tan(const vector<const Value*> &args) {
if (args[0]->type != Value::NUMBER &&
args[0]->type != Value::DIMENSION) {
throw new ValueException("tan() only works on numbers "
"or dimensions", *args[0]->getTokens());
}
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
double val = n->getValue();
std::string unit;
if (n->type == Value::DIMENSION) {
unit = n->getUnit();
if(unit.compare("rad") != 0 &&
unit.compare("deg") != 0 &&
unit.compare("grad") != 0 &&
unit.compare("turn") != 0) {
throw new ValueException("ta() requires rad, deg, "
"grad or turn units.", *args[0]->getTokens());
}
val = UnitValue::angleToRad(val, unit);
}
n->setValue(std::tan(val));
n->type = Value::NUMBER;
n->setUnit("");
return n;
}
Value* NumberValue::multiply(const Value &v) const {
const NumberValue* n;
NumberValue* ret;
if (isNumber(v)) {
n = static_cast<const NumberValue*>(&v);
ret = new NumberValue(getValue());
if (type == NUMBER)
ret->setType(*n);
else {
ret->setType(*this);
ret->verifyUnits(*n);
}
ret->setValue(ret->getValue() * n->getValue());
return ret;
} else if (v.type == COLOR) {
return static_cast<const Color*>(&v)->multiply(*this);
} else if(v.type == STRING) {
return static_cast<const StringValue*>(&v)->multiply(*this);
} else {
throw new ValueException("Unsupported type.", *this->getTokens());
}
}
Value* NumberValue::add(const Value &v) const {
const NumberValue* n;
const StringValue* s;
NumberValue* nret;
StringValue* sret;
if (isNumber(v)) {
n = static_cast<const NumberValue*>(&v);
nret = new NumberValue(getValue());
if (type == NUMBER)
nret->setType(*n);
else {
nret->setType(*this);
nret->verifyUnits(*n);
}
nret->setValue(nret->getValue() + n->getValue());
return nret;
} else if (v.type == COLOR) {
return static_cast<const Color*>(&v)->add(*this);
} else if (v.type == STRING) {
s = static_cast<const StringValue*>(&v);
sret = new StringValue(*this, s->getQuotes());
sret->append(v);
return sret;
} else {
throw new ValueException("Unsupported type.", *this->getTokens());
}
}
Value* NumberValue::atan(const vector<const Value*> &args) {
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
n->setValue(std::atan(n->getValue()));
n->setUnit("rad");
n->type = Value::DIMENSION;
return n;
}
Value* NumberValue::abs(const vector<const Value*> &args) {
if (!NumberValue::isNumber(*args[0]))
throw new ValueException("abs() only works on numeric "
"values", *args[0]->getTokens());
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
n->setValue(fabs(n->getValue()));
return n;
}
Value* NumberValue::pow(const vector<const Value*> &args) {
if (!NumberValue::isNumber(*args[0]))
throw new ValueException("pow() only works on numeric values",
*args[0]->getTokens());
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
double exp = ((const NumberValue*)args[1])->getValue();
n->setValue(std::pow(n->getValue(), exp));
return n;
}
Value* NumberValue::mod(const vector<const Value*> &args) {
if (!NumberValue::isNumber(*args[0]) ||
!NumberValue::isNumber(*args[1]))
throw new ValueException("mod() only works on numeric values",
*args[0]->getTokens());
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
double val2 = ((NumberValue*)args[1])->getValue();
n->setValue(std::fmod(n->getValue(), val2));
return n;
}
Value* NumberValue::floor(const vector<const Value*> &args) {
NumberValue *n;
if (!NumberValue::isNumber(*args[0]))
throw new ValueException("floor() only works on numeric "
"values", *args[0]->getTokens());
n = new NumberValue(*static_cast<const NumberValue*>(args[0]));
double val = n->getValue();
n->setValue(std::floor(val));
return n;
}
Value* Color::divide(Value* v) {
Color* c;
NumberValue* n;
if (v->type == COLOR) {
c = static_cast<Color*>(v);
color[RGB_RED] /= c->getRed();
color[RGB_GREEN] /= c->getGreen();
color[RGB_BLUE] /= c->getBlue();
} else if (v->type == Value::NUMBER ||
v->type == Value::PERCENTAGE ||
v->type == Value::DIMENSION){
n = static_cast<NumberValue*>(v);
color[RGB_RED] /= n->getValue();
color[RGB_GREEN] /= n->getValue();
color[RGB_BLUE] /= n->getValue();
} else {
throw new ValueException("You can only divide a color by a \
color or a number.");
}
valueChanged = true;
return this;
}
Value* NumberValue::round(const vector<const Value*> &args) {
if (!NumberValue::isNumber(*args[0]))
throw new ValueException("round() only works on numeric "
"values", *args[0]->getTokens());
NumberValue* n = new NumberValue(*(const NumberValue*)args[0]);
double val = n->getValue();
double decimalplaces = 0;
if (args.size() > 1)
decimalplaces = ((const NumberValue*)args[1])->getValue();
val = val * std::pow(10, decimalplaces);
val = std::floor(val + 0.5);
val = val / std::pow(10, decimalplaces);
n->setValue(val);
return n;
}
Value* NumberValue::divide(const Value &v) const {
const NumberValue* n;
NumberValue* ret;
if (isNumber(v)) {
n = static_cast<const NumberValue*>(&v);
ret = new NumberValue(getValue());
if (type == NUMBER)
ret->setType(*n);
else {
ret->setType(*this);
ret->verifyUnits(*n);
}
ret->setValue(ret->getValue() / n->getValue());
return ret;
} else
throw new ValueException("You can only divide a number "
"by a *number*.", *this->getTokens());
}
Value* NumberValue::substract(const Value &v) const {
const NumberValue* n;
NumberValue* ret;
if (isNumber(v)) {
n = static_cast<const NumberValue*>(&v);
ret = new NumberValue(getValue());
if (type == NUMBER)
ret->setType(*n);
else {
ret->setType(*this);
ret->verifyUnits(*n);
}
ret->setValue(ret->getValue() - n->getValue());
return ret;
} else
throw new ValueException("You can only substract a "
"*number* from a number.", *this->getTokens());
}