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efl: interpolate stroke also.

This commit is contained in:
Cedric BAIL 2015-04-03 16:33:51 +02:00
parent 0ec75ca05f
commit 105b375f68
1 changed files with 71 additions and 1 deletions
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72
src/lib/efl/interfaces/efl_gfx_shape.c
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@ -239,6 +239,38 @@ interpolate(double from, double to, double pos_map)
return (from * pos_map) + (to * (1.0 - pos_map));
}
static inline int
interpolatei(int from, int to, double pos_map)
{
return (from * pos_map) + (to * (1.0 - pos_map));
}
typedef struct _Efl_Gfx_Stroke Efl_Gfx_Stroke;
struct _Efl_Gfx_Stroke
{
double scale;
int r, g, b, a;
double w;
double centered;
const Efl_Gfx_Dash *dash;
unsigned int dash_length;
Efl_Gfx_Cap c;
Efl_Gfx_Join j;
};
static inline void
stroke_get(const Eo *obj, Efl_Gfx_Stroke *stroke)
{
eo_do(obj,
stroke->scale = efl_gfx_shape_stroke_scale_get(),
efl_gfx_shape_stroke_color_get(&stroke->r, &stroke->g, &stroke->b, &stroke->a),
stroke->w = efl_gfx_shape_stroke_width_get(),
stroke->centered = efl_gfx_shape_stroke_location_get(),
efl_gfx_shape_stroke_dash_get(&stroke->dash, &stroke->dash_length),
stroke->c = efl_gfx_shape_stroke_cap_get(),
stroke->j = efl_gfx_shape_stroke_join_get());
}
Eina_Bool
_efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
const Eo *from, const Eo *to, double pos_map)
@ -247,14 +279,22 @@ _efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
Efl_Gfx_Path_Command *cmds;
double *pts, *from_pts, *to_pts;
unsigned int i, j;
Efl_Gfx_Stroke stroke_from, stroke_to;
Efl_Gfx_Dash *dash;
from_pd = eo_data_scope_get(from, EFL_GFX_SHAPE_MIXIN);
to_pd = eo_data_scope_get(to, EFL_GFX_SHAPE_MIXIN);
if (!from_pd && !to_pd) return EINA_FALSE;
if (!eo_isa(from, EFL_GFX_SHAPE_MIXIN) ||
!eo_isa(to, EFL_GFX_SHAPE_MIXIN)) return EINA_FALSE;
if (pd == from_pd || pd == to_pd) return EINA_FALSE;
if (!_efl_gfx_shape_equal_commands_internal(from_pd, to_pd))
return EINA_FALSE;
stroke_get(from, &stroke_from);
stroke_get(to, &stroke_to);
if (stroke_from.dash_length != stroke_to.dash_length) return EINA_FALSE;
cmds = realloc(pd->commands,
sizeof (Efl_Gfx_Path_Command) * from_pd->commands_count);
if (!cmds && from_pd->commands_count) return EINA_FALSE;
@ -281,6 +321,9 @@ _efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
to_pts++;
}
pd->points_count = from_pd->points_count;
pd->commands_count = from_pd->commands_count;
pd->current.x = interpolate(from_pd->current.x,
to_pd->current.x,
pos_map);
@ -294,7 +337,34 @@ _efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
to_pd->current_ctrl.y,
pos_map);
dash = malloc(sizeof (Efl_Gfx_Dash) * stroke_to.dash_length);
if (dash)
{
for (i = 0; i < stroke_to.dash_length; i++)
{
dash[i].length = interpolate(stroke_from.dash[i].length,
stroke_to.dash[i].length, pos_map);
dash[i].gap = interpolate(stroke_from.dash[i].gap,
stroke_to.dash[i].gap, pos_map);
}
}
else
{
stroke_to.dash_length = 0;
}
eo_do(obj,
efl_gfx_shape_stroke_scale_set(interpolate(stroke_to.scale, stroke_from.scale, pos_map)),
efl_gfx_shape_stroke_color_set(interpolatei(stroke_to.r, stroke_from.r, pos_map),
interpolatei(stroke_to.g, stroke_from.g, pos_map),
interpolatei(stroke_to.b, stroke_from.b, pos_map),
interpolatei(stroke_to.a, stroke_from.a, pos_map)),
efl_gfx_shape_stroke_width_set(interpolate(stroke_to.w, stroke_from.w, pos_map)),
efl_gfx_shape_stroke_location_set(interpolate(stroke_to.centered, stroke_from.centered, pos_map)),
efl_gfx_shape_stroke_dash_set(dash, stroke_to.dash_length),
efl_gfx_shape_stroke_cap_set(pos_map < 0.5 ? stroke_from.c : stroke_to.c),
efl_gfx_shape_stroke_join_set(pos_map < 0.5 ? stroke_from.j : stroke_to.j),
eo_event_callback_call(EFL_GFX_PATH_CHANGED, NULL),
eo_event_callback_call(EFL_GFX_CHANGED, NULL));