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#include "e.h"
Evas_Smart *_e_spectrum_smart = NULL;
typedef struct _E_Spectrum E_Spectrum;
struct _E_Spectrum
{
Evas_Object *o_spectrum;
Evas_Object *o_event;
Evas_Object *o_cursor;
int iw, ih; /* square image width/height */
E_Color_Component mode;
E_Color *cv;
Ecore_Timer *draw_timer;
};
static Eina_Bool _e_spectrum_redraw(void *d);
static void
_e_spectrum_smart_add(Evas_Object *o)
{
E_Spectrum *sp;
sp = E_NEW(E_Spectrum, 1);
if (!sp) return;
evas_object_smart_data_set(o, sp);
sp->mode = E_COLOR_COMPONENT_R;
sp->o_spectrum = evas_object_image_add(evas_object_evas_get(o));
sp->iw = sp->ih = 255;
evas_object_image_size_set(sp->o_spectrum, sp->iw, sp->ih);
evas_object_image_alpha_set(sp->o_spectrum, 1);
evas_object_smart_member_add(sp->o_spectrum, o);
}
static void
_e_spectrum_smart_del(Evas_Object *o)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_del(sp->o_spectrum);
evas_object_del(sp->o_event);
evas_object_del(sp->o_cursor);
if (sp->draw_timer) ecore_timer_del(sp->draw_timer);
E_FREE(sp);
}
static void
_e_spectrum_smart_show(Evas_Object *o)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_show(sp->o_spectrum);
evas_object_show(sp->o_event);
evas_object_show(sp->o_cursor);
}
static void
_e_spectrum_smart_hide(Evas_Object *o)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_hide(sp->o_spectrum);
evas_object_hide(sp->o_event);
evas_object_hide(sp->o_cursor);
}
static void
_e_spectrum_smart_move(Evas_Object *o, Evas_Coord x, Evas_Coord y)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_move(sp->o_spectrum, x, y);
evas_object_move(sp->o_event, x, y);
evas_object_move(sp->o_cursor, x, y);
}
static void
_e_spectrum_smart_resize(Evas_Object *o, Evas_Coord w, Evas_Coord h)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_image_fill_set(sp->o_spectrum, 0, 0, w, h);
evas_object_resize(sp->o_spectrum, w, h);
evas_object_resize(sp->o_event, w, h);
evas_object_resize(sp->o_cursor, w, h);
}
static void
_e_spectrum_smart_color_set(Evas_Object *o, int r, int g, int b, int a)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_color_set(sp->o_spectrum, r, g, b, a);
evas_object_color_set(sp->o_event, r, g, b, a);
evas_object_color_set(sp->o_cursor, r, g, b, a);
}
static void
_e_spectrum_smart_clip_set(Evas_Object *o, Evas_Object *o_clip)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_clip_set(sp->o_spectrum, o_clip);
evas_object_clip_set(sp->o_event, o_clip);
evas_object_clip_set(sp->o_cursor, o_clip);
}
static void
_e_spectrum_smart_clip_unset(Evas_Object *o)
{
E_Spectrum *sp;
sp = evas_object_smart_data_get(o);
if (!sp) return;
evas_object_clip_unset(sp->o_spectrum);
evas_object_clip_unset(sp->o_event);
evas_object_clip_unset(sp->o_cursor);
}
static void
_e_spectrum_smart_init(void)
{
if (_e_spectrum_smart) return;
{
static const Evas_Smart_Class sc =
{
"e_spectrum",
EVAS_SMART_CLASS_VERSION,
_e_spectrum_smart_add,
_e_spectrum_smart_del,
_e_spectrum_smart_move,
_e_spectrum_smart_resize,
_e_spectrum_smart_show,
_e_spectrum_smart_hide,
_e_spectrum_smart_color_set,
_e_spectrum_smart_clip_set,
_e_spectrum_smart_clip_unset,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};
_e_spectrum_smart = evas_smart_class_new(&sc);
}
}
void
_e_spectrum_color_calc(E_Spectrum *sp, float vx, float vy, float vz, int *r, int *g, int *b)
{
switch (sp->mode)
{
case E_COLOR_COMPONENT_R:
*r = 255 * vz;
*g = 255 * vy;
*b = 255 * vx;
break;
case E_COLOR_COMPONENT_G:
*r = 255 * vx;
*g = 255 * vz;
*b = 255 * vy;
break;
case E_COLOR_COMPONENT_B:
*r = 255 * vy;
*g = 255 * vx;
*b = 255 * vz;
break;
case E_COLOR_COMPONENT_H:
evas_color_hsv_to_rgb(vz * 360.0, vy, vx, r, g, b);
break;
case E_COLOR_COMPONENT_S:
evas_color_hsv_to_rgb(vx * 360.0, vz, vy, r, g, b);
break;
case E_COLOR_COMPONENT_V:
evas_color_hsv_to_rgb(vy * 360.0, vx, vz, r, g, b);
break;
default:
break;
}
}
void
_e_spectrum_2d_color_at(E_Spectrum *sp, int x, int y, int *r, int *g, int *b)
{
int rr, gg, bb;
float h, s, v;
if (!sp || !sp->cv) return;
switch (sp->mode)
{
case E_COLOR_COMPONENT_R:
rr = sp->cv->r;
gg = (1 - (y / (double)(sp->ih))) * 255;
bb = (x / (double)(sp->iw)) * 255;
break;
case E_COLOR_COMPONENT_G:
rr = (x / (double)(sp->iw)) * 255;
gg = sp->cv->g;
bb = (1 - (y / (double)(sp->ih))) * 255;
break;
case E_COLOR_COMPONENT_B:
rr = (1 - (y / (double)(sp->ih))) * 255;
gg = (x / (double)(sp->iw)) * 255;
bb = sp->cv->b;
break;
case E_COLOR_COMPONENT_H:
h = sp->cv->h;
s = 1 - (y / (double)(sp->ih));
v = x / (double)(sp->iw);
evas_color_hsv_to_rgb(h, s, v, &rr, &gg, &bb);
break;
case E_COLOR_COMPONENT_S:
s = sp->cv->s;
v = 1 - (y / (double)(sp->ih));
h = x / (double)(sp->iw) * 360;
evas_color_hsv_to_rgb(h, s, v, &rr, &gg, &bb);
break;
case E_COLOR_COMPONENT_V:
v = sp->cv->v;
h = (1 - (y / (double)(sp->ih))) * 360;
s = x / (double)(sp->iw);
evas_color_hsv_to_rgb(h, s, v, &rr, &gg, &bb);
break;
case E_COLOR_COMPONENT_MAX:
default:
return;
}
if (r) *r = rr;
if (g) *g = gg;
if (b) *b = bb;
}
static Eina_Bool
_e_spectrum_redraw(void *d)
{
E_Spectrum *sp = d;
int *data;
int i, j;
int r, g, b;
float vx, vy, vz = 0;
data = evas_object_image_data_get(sp->o_spectrum, 1);
if (!data)
{
sp->draw_timer = NULL;
return ECORE_CALLBACK_CANCEL;
}
switch (sp->mode)
{
case E_COLOR_COMPONENT_R:
vz = (float)sp->cv->r / 255;
break;
case E_COLOR_COMPONENT_G:
vz = (float)sp->cv->g / 255;
break;
case E_COLOR_COMPONENT_B:
vz = (float)sp->cv->b / 255;
break;
case E_COLOR_COMPONENT_H:
vz = sp->cv->h / 360;
break;
case E_COLOR_COMPONENT_S:
vz = sp->cv->s;
break;
case E_COLOR_COMPONENT_V:
vz = sp->cv->v;
break;
case E_COLOR_COMPONENT_MAX:
break;
}
for (i = 0; i < sp->ih; i++)
{
vy = (float)i / sp->ih;
for (j = 0; j < sp->iw; j++)
{
vx = (float)j / sp->iw;
_e_spectrum_color_calc(sp, vx, vy, vz, &r, &g, &b);
data[(i * sp->iw) + j] =
(sp->cv->a << 24) |
(((r * sp->cv->a) / 255) << 16) |
(((g * sp->cv->a) / 255) << 8) |
(((b * sp->cv->a) / 255));
}
}
evas_object_image_data_set(sp->o_spectrum, data);
evas_object_image_data_update_add(sp->o_spectrum, 0, 0, sp->iw, sp->ih);
sp->draw_timer = NULL;
return ECORE_CALLBACK_CANCEL;
}
static void
_e_spectrum_update(E_Spectrum *sp)
{
if (!sp || !sp->cv) return;
if (sp->draw_timer) ecore_timer_del(sp->draw_timer);
sp->draw_timer = ecore_timer_loop_add(.001, _e_spectrum_redraw, sp);
}
Evas_Object *
e_spectrum_add(Evas *e)
{
_e_spectrum_smart_init();
return evas_object_smart_add(e, _e_spectrum_smart);
}
void
e_spectrum_mode_set(Evas_Object *o, E_Color_Component mode)
{
E_Spectrum *sp;
if (evas_object_smart_smart_get(o) != _e_spectrum_smart) SMARTERRNR();
sp = evas_object_smart_data_get(o);
if (!sp) return;
if (sp->mode == mode) return;
sp->mode = mode;
_e_spectrum_update(sp);
}
E_Color_Component
e_spectrum_mode_get(Evas_Object *o)
{
E_Spectrum *sp;
if (evas_object_smart_smart_get(o) != _e_spectrum_smart) SMARTERR(0);
sp = evas_object_smart_data_get(o);
if (!sp) return -1;
return sp->mode;
}
void
e_spectrum_color_value_set(Evas_Object *o, E_Color *cv)
{
E_Spectrum *sp;
if (evas_object_smart_smart_get(o) != _e_spectrum_smart) SMARTERRNR();
sp = evas_object_smart_data_get(o);
if (!sp) return;
sp->cv = cv;
_e_spectrum_update(sp);
}
void
e_spectrum_update(Evas_Object *o)
{
E_Spectrum *sp;
if (evas_object_smart_smart_get(o) != _e_spectrum_smart) SMARTERRNR();
sp = evas_object_smart_data_get(o);
if (!sp) return;
_e_spectrum_update(sp);
}