function.cpp
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#include "function.h"
#include <string.h>
#include <cmath>
#include <assert.h>
using namespace Poincare;
namespace Shared {
Function::Function(const char * name, KDColor color) :
ExpressionModel(),
m_name(name),
m_color(color),
m_active(true)
{
}
uint32_t Function::checksum() {
char data[k_dataLengthInBytes/sizeof(char)] = {};
strlcpy(data, text(), TextField::maxBufferSize());
data[k_dataLengthInBytes-2] = m_name != nullptr ? m_name[0] : 0;
data[k_dataLengthInBytes-1] = m_active ? 1 : 0;
return Ion::crc32((uint32_t *)data, k_dataLengthInBytes/sizeof(uint32_t));
}
void Function::setColor(KDColor color) {
m_color = color;
}
const char * Function::name() const {
return m_name;
}
bool Function::isActive() {
return m_active;
}
void Function::setActive(bool active) {
m_active = active;
}
template<typename T>
T Function::templatedApproximateAtAbscissa(T x, Poincare::Context * context) const {
return expression(context)->approximateWithValueForSymbol(symbol(), x, *context, Preferences::sharedPreferences()->angleUnit());
}
}
template float Shared::Function::templatedApproximateAtAbscissa<float>(float, Poincare::Context*) const;
template double Shared::Function::templatedApproximateAtAbscissa<double>(double, Poincare::Context*) const;