#ifndef LENGTH_H
#define LENGTH_H
namespace WebCore {
const int undefinedLength = -1;
enum LengthType { Auto, Relative, Percent, Fixed, Static, Intrinsic, MinIntrinsic };
struct Length {
Length() : m_value(0) { }
Length(LengthType t) : m_value(t) { }
Length(int v, LengthType t, bool q = false) : m_value((v * 16) | (q << 3) | t) { }
bool operator==(const Length& o) const { return m_value == o.m_value; }
bool operator!=(const Length& o) const { return m_value != o.m_value; }
int value() const { return (m_value & ~0xF) / 16; }
LengthType type() const { return static_cast<LengthType>(m_value & 7); }
bool quirk() const { return (m_value >> 3) & 1; }
void setValue(LengthType t, int value) { m_value = value * 16 | (m_value & 0x8) | t; }
void setValue(int value) { m_value = value * 16 | (m_value & 0xF); }
int calcValue(int maxValue) const
{
switch (type()) {
case Fixed:
return value();
case Percent:
return maxValue * value() / 100;
case Auto:
return maxValue;
default:
return undefinedLength;
}
}
int calcMinValue(int maxValue) const
{
switch (type()) {
case Fixed:
return value();
case Percent:
return maxValue * value() / 100;
case Auto:
default:
return 0;
}
}
bool isAuto() const { return type() == Auto; }
bool isRelative() const { return type() == Relative; }
bool isPercent() const { return type() == Percent; }
bool isFixed() const { return type() == Fixed; }
bool isStatic() const { return type() == Static; }
bool isIntrinsicOrAuto() const { return type() == Auto || type() == MinIntrinsic || type() == Intrinsic; }
private:
int m_value;
};
}
#endif