efl/src/lib/evas/canvas/evas_vg_gradient.c

136 lines
3.8 KiB
C

#include "evas_common_private.h"
#include "evas_private.h"
#include "evas_vg_private.h"
#include <strings.h>
#define MY_CLASS EFL_VG_GRADIENT_CLASS
static void
_efl_vg_gradient_efl_gfx_gradient_stop_set(Eo *obj EINA_UNUSED,
Efl_VG_Gradient_Data *pd,
const Efl_Gfx_Gradient_Stop *colors,
unsigned int length)
{
pd->colors = realloc(pd->colors, length * sizeof(Efl_Gfx_Gradient_Stop));
if (!pd->colors)
{
pd->colors_count = 0;
return ;
}
memcpy(pd->colors, colors, length * sizeof(Efl_Gfx_Gradient_Stop));
pd->colors_count = length;
_efl_vg_changed(obj);
}
static void
_efl_vg_gradient_efl_gfx_gradient_stop_get(Eo *obj EINA_UNUSED,
Efl_VG_Gradient_Data *pd,
const Efl_Gfx_Gradient_Stop **colors,
unsigned int *length)
{
if (colors) *colors = pd->colors;
if (length) *length = pd->colors_count;
}
static void
_efl_vg_gradient_efl_gfx_gradient_spread_set(Eo *obj EINA_UNUSED,
Efl_VG_Gradient_Data *pd,
Efl_Gfx_Gradient_Spread s)
{
pd->s = s;
_efl_vg_changed(obj);
}
static Efl_Gfx_Gradient_Spread
_efl_vg_gradient_efl_gfx_gradient_spread_get(Eo *obj EINA_UNUSED,
Efl_VG_Gradient_Data *pd)
{
return pd->s;
}
static Eina_Bool
_efl_vg_gradient_efl_vg_interpolate(Eo *obj,
Efl_VG_Gradient_Data *pd,
const Efl_VG *from, const Efl_VG *to,
double pos_map)
{
Efl_VG_Gradient_Data *fromd, *tod;
Efl_Gfx_Gradient_Stop *colors;
unsigned int i;
double from_map;
Eina_Bool r;
r = efl_vg_interpolate(efl_super(obj, EFL_VG_GRADIENT_CLASS), from, to, pos_map);
fromd = efl_data_scope_get(from, EFL_VG_GRADIENT_CLASS);
tod = efl_data_scope_get(to, EFL_VG_GRADIENT_CLASS);
from_map = 1.0 - pos_map;
if (!r) return EINA_FALSE;
if (fromd->colors_count != tod->colors_count) return EINA_FALSE;
colors = realloc(pd->colors, sizeof (Efl_Gfx_Gradient_Stop) * tod->colors_count);
if (!colors) return EINA_FALSE;
pd->colors = colors;
#define INTP(Pd, From, To, I, Member, From_Map, Pos_Map) \
Pd->colors[I].Member = From->colors[I].Member * From_Map + To->colors[I].Member * Pos_Map
for (i = 0; i < fromd->colors_count; i++)
{
INTP(pd, fromd, tod, i, offset, from_map, pos_map);
INTP(pd, fromd, tod, i, r, from_map, pos_map);
INTP(pd, fromd, tod, i, g, from_map, pos_map);
INTP(pd, fromd, tod, i, b, from_map, pos_map);
INTP(pd, fromd, tod, i, a, from_map, pos_map);
}
#undef INTP
return EINA_TRUE;
}
EOLIAN static Efl_VG *
_efl_vg_gradient_efl_vg_dup(const Eo *obj, Efl_VG_Gradient_Data *pd)
{
Efl_VG *cn = NULL;
cn = efl_vg_dup(efl_super(obj, MY_CLASS));
efl_gfx_gradient_stop_set(cn, pd->colors, pd->colors_count);
efl_gfx_gradient_spread_set(cn, pd->s);
return cn;
}
EAPI void
evas_vg_gradient_stop_set(Eo *obj, const Efl_Gfx_Gradient_Stop *colors, unsigned int length)
{
efl_gfx_gradient_stop_set(obj, colors, length);
}
EAPI void
evas_vg_gradient_stop_get(Eo *obj, const Efl_Gfx_Gradient_Stop **colors, unsigned int *length)
{
efl_gfx_gradient_stop_get(obj, colors, length);
}
EAPI void
evas_vg_gradient_spread_set(Eo *obj, Efl_Gfx_Gradient_Spread s)
{
efl_gfx_gradient_spread_set(obj, s);
}
EAPI Efl_Gfx_Gradient_Spread
evas_vg_gradient_spread_get(Eo *obj)
{
return efl_gfx_gradient_spread_get(obj);
}
#include "efl_vg_gradient.eo.c"