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Contents
#ifndef SASS_UNITS_H
#define SASS_UNITS_H
#include <cmath>
#include <string>
#include <sstream>
namespace Sass {
using namespace std;
const double PI = acos(-1);
enum SassUnitType {
SIZE = 0x000,
ANGLE = 0x100,
TIME = 0x200,
FREQUENCY = 0x300,
RESOLUTION = 0x400,
INCOMMENSURABLE = 0x500
};
enum SassUnit {
// size units
IN = SIZE,
CM,
PC,
MM,
PT,
PX,
// angle units
DEG = ANGLE,
GRAD,
RAD,
TURN,
// time units
SEC = TIME,
MSEC,
// frequency units
HERTZ = FREQUENCY,
KHERTZ,
// resolutions units
DPI = RESOLUTION,
DPCM,
DPPX,
// for unknown units
UNKNOWN = INCOMMENSURABLE
};
extern const double size_conversion_factors[6][6];
extern const double angle_conversion_factors[4][4];
extern const double time_conversion_factors[2][2];
extern const double frequency_conversion_factors[2][2];
extern const double resolution_conversion_factors[3][3];
SassUnit string_to_unit(const string&);
const char* unit_to_string(SassUnit unit);
SassUnitType get_unit_type(SassUnit unit);
// throws incompatibleUnits exceptions
double conversion_factor(const string&, const string&);
class incompatibleUnits: public exception
{
public:
const char* msg;
incompatibleUnits(SassUnit a, SassUnit b)
: exception()
{
stringstream ss;
ss << "Incompatible units: ";
ss << "'" << unit_to_string(a) << "' and ";
ss << "'" << unit_to_string(b) << "'";
msg = ss.str().c_str();
};
virtual const char* what() const throw()
{
return msg;
}
};
}
#endif
Version data entries
11 entries across 11 versions & 2 rubygems