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add getters for SVAModifier

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This commit is contained in:
Paul Davis 2014-12-15 12:06:53 -05:00
parent 94b6dd7f87
commit 9831006c8e
2 changed files with 43 additions and 40 deletions
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17
libs/canvas/canvas/colors.h
View file

@ -43,17 +43,20 @@ struct LIBCANVAS_API HSV;
class LIBCANVAS_API SVAModifier class LIBCANVAS_API SVAModifier
{ {
private: public:
enum Type { enum Type {
Add, Add,
Multiply, Multiply,
Assign Assign
}; };
public:
SVAModifier (std::string const &); SVAModifier (std::string const &);
SVAModifier (Type t, double ss, double vv, double aa) : type (t), s (ss) , v (vv) , a (aa) {} SVAModifier (Type t, double ss, double vv, double aa) : type (t), _s (ss) , _v (vv) , _a (aa) {}
SVAModifier () : type (Add), s (0), v (0), a (0) {} /* no-op modifier */ SVAModifier () : type (Add), _s (0), _v (0), _a (0) {} /* no-op modifier */
double s() const { return _s; }
double v() const { return _v; }
double a() const { return _a; }
HSV operator () (HSV& hsv) const; HSV operator () (HSV& hsv) const;
std::string to_string () const; std::string to_string () const;
@ -61,9 +64,9 @@ class LIBCANVAS_API SVAModifier
private: private:
Type type; Type type;
double s; double _s;
double v; double _v;
double a; double _a;
}; };
struct LIBCANVAS_API HSV struct LIBCANVAS_API HSV

66
libs/canvas/colors.cc
View file

@ -529,9 +529,9 @@ HSV::mod (SVAModifier const & svam)
SVAModifier::SVAModifier (string const &str) SVAModifier::SVAModifier (string const &str)
: type (Add) : type (Add)
, s (0) , _s (0)
, v (0) , _v (0)
, a (0) , _a (0)
{ {
from_string (str); from_string (str);
} }
@ -549,23 +549,23 @@ SVAModifier::from_string (string const & str)
case '*': case '*':
type = Multiply; type = Multiply;
/* no-op values for multiply */ /* no-op values for multiply */
s = 1.0; _s = 1.0;
v = 1.0; _v = 1.0;
a = 1.0; _a = 1.0;
break; break;
case '+': case '+':
type = Add; type = Add;
/* no-op values for add */ /* no-op values for add */
s = 0.0; _s = 0.0;
v = 0.0; _v = 0.0;
a = 0.0; _a = 0.0;
break; break;
case '=': case '=':
type = Assign; type = Assign;
/* this will avoid assignment in operator() (see below) */ /* this will avoid assignment in operator() (see below) */
s = -1.0; _s = -1.0;
v = -1.0; _v = -1.0;
a = -1.0; _a = -1.0;
break; break;
default: default:
throw failed_constructor (); throw failed_constructor ();
@ -576,11 +576,11 @@ SVAModifier::from_string (string const & str)
while (ss) { while (ss) {
ss >> mod; ss >> mod;
if ((pos = mod.find ("alpha:")) != string::npos) { if ((pos = mod.find ("alpha:")) != string::npos) {
a = PBD::atof (mod.substr (pos+6)); _a = PBD::atof (mod.substr (pos+6));
} else if ((pos = mod.find ("saturate:")) != string::npos) { } else if ((pos = mod.find ("saturate:")) != string::npos) {
s = PBD::atof (mod.substr (pos+9)); _s = PBD::atof (mod.substr (pos+9));
} else if ((pos = mod.find ("darkness:")) != string::npos) { } else if ((pos = mod.find ("darkness:")) != string::npos) {
v = PBD::atof (mod.substr (pos+9)); _v = PBD::atof (mod.substr (pos+9));
} else { } else {
throw failed_constructor (); throw failed_constructor ();
} }
@ -605,16 +605,16 @@ SVAModifier::to_string () const
break; break;
} }
if (s > -1.0) { if (_s >= 0.0) {
ss << " saturate:" << s; ss << " saturate:" << _s;
} }
if (v > -1.0) { if (_v >= 0.0) {
ss << " darker:" << v; ss << " darker:" << _v;
} }
if (a > -1.0) { if (_a >= 0.0) {
ss << " alpha:" << a; ss << " alpha:" << _a;
} }
return ss.str(); return ss.str();
@ -627,24 +627,24 @@ SVAModifier::operator () (HSV& hsv) const
switch (type) { switch (type) {
case Add: case Add:
r.s += s; r.s += _s;
r.v += v; r.v += _v;
r.a += a; r.a += _a;
break; break;
case Multiply: case Multiply:
r.s *= s; r.s *= _s;
r.v *= v; r.v *= _v;
r.a *= a; r.a *= _a;
break; break;
case Assign: case Assign:
if (s > -1.0) { if (_s >= 0.0) {
r.s = s; r.s = _s;
} }
if (v > -1.0) { if (_v >= 0.) {
r.v = v; r.v = _v;
} }
if (a > -1.0) { if (_a >= 0.0) {
r.a = a; r.a = _a;
} }
break; break;
} }