Lerking/gtk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

curve: Add gsk_curve_print

Browse Source 
Useful for debugging.
This commit is contained in:
Matthias Clasen
2022-03-21 15:55:41 -04:00
parent 1a03efb181
commit 26d8d4c33d
2 changed files with 73 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
gsk/gskcurve.c
View File

@@ -72,6 +72,9 @@ struct _GskCurveClass
GskBoundingBox *bounds);
float (* get_curvature) (const GskCurve *curve,
float t);
void (* print) (const GskCurve *curve,
GString *string);
};
static void
@@ -256,6 +259,16 @@ gsk_line_curve_get_curvature (const GskCurve *curve,
return 0;
}
static void
gsk_line_curve_print (const GskCurve *curve,
GString *string)
{
g_string_append_printf (string,
"M %g %g L %g %g",
curve->line.points[0].x, curve->line.points[0].y,
curve->line.points[1].x, curve->line.points[1].y);
}
static const GskCurveClass GSK_LINE_CURVE_CLASS = {
gsk_line_curve_init,
gsk_line_curve_init_foreach,
@@ -274,6 +287,7 @@ static const GskCurveClass GSK_LINE_CURVE_CLASS = {
gsk_line_curve_get_bounds,
gsk_line_curve_get_bounds,
gsk_line_curve_get_curvature,
gsk_line_curve_print,
};
/** QUADRATIC **/
@@ -609,6 +623,17 @@ gsk_quad_curve_get_curvature (const GskCurve *curve,
return gsk_cubic_curve_get_curvature (curve, t);
}
static void
gsk_quad_curve_print (const GskCurve *curve,
GString *string)
{
g_string_append_printf (string,
"M %g %g Q %g %g %g %g",
curve->quad.points[0].x, curve->quad.points[0].y,
curve->quad.points[1].x, curve->cubic.points[1].y,
curve->quad.points[2].x, curve->cubic.points[2].y);
}
static const GskCurveClass GSK_QUAD_CURVE_CLASS = {
gsk_quad_curve_init,
gsk_quad_curve_init_foreach,
@@ -627,6 +652,7 @@ static const GskCurveClass GSK_QUAD_CURVE_CLASS = {
gsk_quad_curve_get_bounds,
gsk_quad_curve_get_tight_bounds,
gsk_quad_curve_get_curvature,
gsk_quad_curve_print,
};
/** CUBIC **/
@@ -1061,6 +1087,18 @@ gsk_cubic_curve_get_curvature (const GskCurve *curve,
return num / denom;
}
static void
gsk_cubic_curve_print (const GskCurve *curve,
GString *string)
{
g_string_append_printf (string,
"M %g %g C %g %g %g %g %g %g",
curve->cubic.points[0].x, curve->cubic.points[0].y,
curve->cubic.points[1].x, curve->cubic.points[1].y,
curve->cubic.points[2].x, curve->cubic.points[2].y,
curve->cubic.points[3].x, curve->cubic.points[3].y);
}
static const GskCurveClass GSK_CUBIC_CURVE_CLASS = {
gsk_cubic_curve_init,
gsk_cubic_curve_init_foreach,
@@ -1079,6 +1117,7 @@ static const GskCurveClass GSK_CUBIC_CURVE_CLASS = {
gsk_cubic_curve_get_bounds,
gsk_cubic_curve_get_tight_bounds,
gsk_cubic_curve_get_curvature,
gsk_cubic_curve_print,
};
/** CONIC **/
@@ -1706,6 +1745,18 @@ gsk_conic_curve_get_curvature (const GskCurve *curve,
return 0.5 * ((w*pow3 (w2))/(pow3 (w1[0])*pow3 (w1[1]))) * (cross (&t1, &t2) / pow3 (graphene_vec2_length (&t3)));
}
static void
gsk_conic_curve_print (const GskCurve *curve,
GString *string)
{
g_string_append_printf (string,
"M %g %g O %g %g %g %g %g",
curve->conic.points[0].x, curve->conic.points[0].y,
curve->conic.points[1].x, curve->conic.points[1].y,
curve->conic.points[3].x, curve->conic.points[3].y,
curve->conic.points[2].x);
}
static const GskCurveClass GSK_CONIC_CURVE_CLASS = {
gsk_conic_curve_init,
gsk_conic_curve_init_foreach,
@@ -1724,6 +1775,7 @@ static const GskCurveClass GSK_CONIC_CURVE_CLASS = {
gsk_conic_curve_get_bounds,
gsk_conic_curve_get_tight_bounds,
gsk_conic_curve_get_curvature,
gsk_conic_curve_print,
};
/** API **/
@@ -1913,6 +1965,21 @@ gsk_curve_get_curvature (const GskCurve *curve,
return k;
}
void
gsk_curve_print (const GskCurve *curve,
GString *string)
{
get_class (curve->op)->print (curve, string);
}
char *
gsk_curve_to_string (const GskCurve *curve)
{
GString *s = g_string_new ("");
gsk_curve_print (curve, s);
return g_string_free (s, FALSE);
}
static inline void
_sincosf (float angle,
float *out_s,

6
gsk/gskcurveprivate.h
View File

@@ -171,6 +171,12 @@ float gsk_curve_get_curvature (const GskCurve
float t,
graphene_point_t *center);
void gsk_curve_print (const GskCurve *curve,
GString *string);
char * gsk_curve_to_string (const GskCurve *curve);
G_END_DECLS
#endif /* __GSK_CURVE_PRIVATE_H__ */