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efl/legacy/elementary/src/lib/elm_colorselector.c

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#include <Elementary.h>
#include "elm_priv.h"
#define BASE_STEP 360.0
#define HUE_STEP 360.0
#define SAT_STEP 128.0
#define LIG_STEP 256.0
#define ALP_STEP 256.0
#define DEFAULT_HOR_PAD 10
#define DEFAULT_VER_PAD 10
typedef enum _Color_Type
{
HUE,
SATURATION,
LIGHTNESS,
ALPHA
} Color_Type;
typedef struct _Colorselector_Data Colorselector_Data;
struct _Colorselector_Data
{
Evas_Object *parent;
Evas_Object *colorbar;
Evas_Object *bar;
Evas_Object *lbt;
Evas_Object *rbt;
Evas_Object *bg_rect;
Evas_Object *arrow;
Evas_Object *touch_area;
Color_Type color_type;
};
typedef struct _Widget_Data Widget_Data;
typedef struct _Elm_Color_Item Elm_Color_Item;
struct _Widget_Data
{
Evas_Object *sel;
Evas_Object *base;
Evas_Object *box;
Eina_List *items;
Colorselector_Data *cp[4];
Ecore_Timer *longpress_timer;
const char *palette_name;
Evas_Coord _x, _y, _w, _h;
int r, g, b, a;
int er, eg, eb;
int sr, sg, sb;
int lr, lg, lb;
double h, s, l;
Elm_Colorselector_Mode mode;
Eina_Bool longpressed : 1;
Eina_Bool config_load: 1;
};
struct _Elm_Color_Item
{
ELM_WIDGET_ITEM;
Evas_Object *color_obj;
Elm_Color_RGBA *color;
};
static const char *widtype = NULL;
static void _del_hook(Evas_Object *obj);
static void _theme_hook(Evas_Object *obj);
static void _sizing_eval(Evas_Object *obj);
static void _resize_cb(void *data, Evas *a, Evas_Object *obj, void *event_info);
static void _rgb_to_hsl(void *data);
static void _hsl_to_rgb(void *data);
static void _color_with_saturation(void *data);
static void _color_with_lightness(void *data);
static void _draw_rects(void *data, double x);
static void _arrow_cb(void *data, Evas_Object *obj, const char *emission,
const char *source);
static void _colorbar_cb(void *data, Evas *e, Evas_Object *obj,
void *event_info);
static void _left_button_clicked_cb(void *data, Evas_Object * obj,
void *event_info);
static void _left_button_repeat_cb(void *data, Evas_Object * obj,
void *event_info);
static void _right_button_clicked_cb(void *data, Evas_Object * obj,
void *event_info);
static void _right_button_repeat_cb(void *data, Evas_Object * obj,
void *event_info);
static void _add_colorbar(Evas_Object *obj);
static void _set_color(Evas_Object *obj, int r, int g, int b, int a);
static Elm_Color_Item *_item_new(Evas_Object *obj);
static void _item_sizing_eval(Elm_Color_Item *item);
static void _item_highlight(void *data, Evas *e, Evas_Object *obj, void *event_info);
static void _item_unhighlight(void *data, Evas *e, Evas_Object *obj, void *event_info);
static Eina_Bool _long_press(void *data);
static void _remove_items(Widget_Data *wd);
static void _colors_remove(Evas_Object *obj);
static void _colors_save(Evas_Object *obj);
static void _colors_load_apply(Evas_Object *obj);
static const char SIG_CHANGED[] = "changed";
static const char SIG_COLOR_ITEM_SELECTED[] = "color,item,selected";
static const char SIG_COLOR_ITEM_LONGPRESSED[] = "color,item,longpressed";
static const Evas_Smart_Cb_Description _signals[] =
{
{SIG_COLOR_ITEM_SELECTED, ""},
{SIG_COLOR_ITEM_LONGPRESSED, ""},
{SIG_CHANGED, ""},
{NULL, NULL}
};
static void
_del_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
int i = 0;
if (!wd) return;
if (wd->longpress_timer) ecore_timer_del(wd->longpress_timer);
if (wd->palette_name) eina_stringshare_del(wd->palette_name);
_remove_items(wd);
for (i = 0; i < 4; i++) free(wd->cp[i]);
free(wd);
}
static void
_theme_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Eina_List *elist;
Elm_Color_Item *item;
int i;
if ((!wd) || (!wd->sel)) return;
_elm_theme_object_set(obj, wd->base, "colorselector", "palette",
elm_widget_style_get(obj));
_elm_theme_object_set(obj, wd->sel, "colorselector", "bg",
elm_widget_style_get(obj));
EINA_LIST_FOREACH(wd->items, elist, item)
{
elm_layout_theme_set(VIEW(item), "colorselector", "item", elm_widget_style_get(obj));
_elm_theme_object_set(obj, item->color_obj, "colorselector", "item/color", elm_widget_style_get(obj));
}
for (i = 0; i < 4; i++)
{
evas_object_del(wd->cp[i]->colorbar);
wd->cp[i]->colorbar = NULL;
evas_object_del(wd->cp[i]->bar);
wd->cp[i]->bar = NULL;
evas_object_del(wd->cp[i]->lbt);
wd->cp[i]->lbt = NULL;
evas_object_del(wd->cp[i]->rbt);
wd->cp[i]->rbt = NULL;
if (i != 0)
{
evas_object_del(wd->cp[i]->bg_rect);
wd->cp[i]->bg_rect = NULL;
}
evas_object_del(wd->cp[i]->arrow);
wd->cp[i]->arrow = NULL;
evas_object_del(wd->cp[i]->touch_area);
wd->cp[i]->touch_area = NULL;
}
_add_colorbar(obj);
elm_colorselector_color_set(obj, wd->r, wd->g, wd->b, wd->a);
_sizing_eval(obj);
}
static void
_colorselector_set_size_hints(Evas_Object *obj, int timesw, int timesh)
{
Evas_Coord minw = -1, minh = -1;
elm_coords_finger_size_adjust(timesw, &minw, timesh, &minh);
edje_object_size_min_restricted_calc(obj, &minw, &minh,
minw, minh);
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_size_hint_max_set(obj, -1, -1);
}
static void
_item_sizing_eval(Elm_Color_Item *item)
{
Evas_Coord minw = -1, minh = -1;
if (!item) return;
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
edje_object_size_min_restricted_calc(VIEW(item), &minw, &minh, minw,
minh);
evas_object_size_hint_min_set(VIEW(item), minw, minh);
}
static void _resize_cb(void *data, Evas *a __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
_sizing_eval(data);
}
static void
_sizing_eval_palette(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Eina_List *elist;
Elm_Color_Item *item;
Evas_Coord bw = 0, bh = 0;
Evas_Coord w = 0, h = 0;
if (!wd) return;
EINA_LIST_FOREACH(wd->items, elist, item)
{
_item_sizing_eval(item);
}
evas_object_size_hint_min_get(wd->box, &bw, &bh);
evas_object_size_hint_min_set(obj, bw, bh);
evas_object_size_hint_max_set(obj, -1, -1);
evas_object_geometry_get(obj, NULL, NULL, &w, &h);
if (w < bw) w = bw;
if (h < bh) h = bh;
evas_object_resize(obj, w, h);
}
static void
_sizing_eval_selector(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord minw = -1, minh = -1;
Evas_Coord w = 0, h = 0;
int i;
if (!wd) return;
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
for (i = 0; i < 4; i++)
{
if (wd->cp[i]->bg_rect)
_colorselector_set_size_hints(wd->cp[i]->bg_rect, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->bar, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->rbt, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->lbt, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->colorbar, 4, 1);
}
elm_coords_finger_size_adjust(4, &minw, 4, &minh);
edje_object_size_min_restricted_calc(wd->sel, &minw, &minh, minw, minh);
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_size_hint_max_set(obj, -1, -1);
evas_object_geometry_get(obj, NULL, NULL, &w, &h);
if (w < minw) w = minw;
if (h < minh) h = minh;
evas_object_resize(obj, w, h);
}
static void
_sizing_eval_palette_selector(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord minw = -1, minh = -1;
Evas_Coord bw = 0, bh = 0;
Evas_Coord w = 0, h = 0;
int i;
if (!wd) return;
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
for (i = 0; i < 4; i++)
{
if (wd->cp[i]->bg_rect)
_colorselector_set_size_hints(wd->cp[i]->bg_rect, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->bar, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->rbt, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->lbt, 1, 1);
_colorselector_set_size_hints(wd->cp[i]->colorbar, 4, 1);
}
elm_coords_finger_size_adjust(4, &minw, 4, &minh);
edje_object_size_min_restricted_calc(wd->sel, &minw, &minh, minw, minh);
evas_object_size_hint_min_get(wd->box, &bw, &bh);
evas_object_size_hint_min_set(obj, minw, minh+bh);
evas_object_size_hint_max_set(obj, -1, -1);
evas_object_geometry_get(obj, NULL, NULL, &w, &h);
if (w < minw) w = minw;
if (h < (minh+bh)) h = (minh+bh);
evas_object_resize(obj, w, h);
}
static void
_sizing_eval(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
switch (wd->mode)
{
case ELM_COLORSELECTOR_PALETTE:
_sizing_eval_palette(obj);
break;
case ELM_COLORSELECTOR_COMPONENTS:
_sizing_eval_selector(obj);
break;
case ELM_COLORSELECTOR_BOTH:
_sizing_eval_palette_selector(obj);
break;
default:
break;
}
}
static Eina_Bool
_long_press(void *data)
{
Elm_Color_Item *item = (Elm_Color_Item *) data;
Widget_Data *wd = elm_widget_data_get(WIDGET(item));
if (!wd) return ECORE_CALLBACK_CANCEL;
wd->longpress_timer = NULL;
wd->longpressed = EINA_TRUE;
evas_object_smart_callback_call(WIDGET(item), SIG_COLOR_ITEM_LONGPRESSED, item);
return ECORE_CALLBACK_CANCEL;
}
static void
_item_highlight(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Elm_Color_Item *item = (Elm_Color_Item *) data;
Evas_Event_Mouse_Down *ev = event_info;
if (!item) return;
Widget_Data *wd = elm_widget_data_get(WIDGET(item));
if (!wd) return;
if (ev->button != 1) return;
elm_object_signal_emit(VIEW(item), "elm,state,selected", "elm");
wd->longpressed = EINA_FALSE;
if (wd->longpress_timer) ecore_timer_del(wd->longpress_timer);
wd->longpress_timer = ecore_timer_add(_elm_config->longpress_timeout, _long_press, data);
}
static void
_item_unhighlight(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Elm_Color_Item *item = (Elm_Color_Item *) data;
Evas_Event_Mouse_Down *ev = event_info;
if (!item) return;
Widget_Data *wd = elm_widget_data_get(WIDGET(item));
if (!wd) return;
if (ev->button != 1) return;
if (wd->longpress_timer)
{
ecore_timer_del(wd->longpress_timer);
wd->longpress_timer = NULL;
}
elm_object_signal_emit(VIEW(item), "elm,state,unselected", "elm");
if (!wd->longpressed)
{
evas_object_smart_callback_call(WIDGET(item), SIG_COLOR_ITEM_SELECTED, item);
elm_colorselector_color_set(WIDGET(item), item->color->r, item->color->g, item->color->b, item->color->a);
}
}
static void
_remove_items(Widget_Data *wd)
{
Elm_Color_Item *item;
if (!wd->items) return;
EINA_LIST_FREE(wd->items, item)
{
free(item->color);
elm_widget_item_free(item);
}
wd->items = NULL;
}
static Elm_Color_Item*
_item_new(Evas_Object *obj)
{
Elm_Color_Item *item;
Widget_Data *wd;
wd = elm_widget_data_get(obj);
if (!wd) return NULL;
item = elm_widget_item_new(obj, Elm_Color_Item);
if (!item) return NULL;
VIEW(item) = elm_layout_add(obj);
elm_layout_theme_set(VIEW(item), "colorselector", "item", elm_widget_style_get(obj));
evas_object_size_hint_weight_set(VIEW(item), EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(VIEW(item), EVAS_HINT_FILL, EVAS_HINT_FILL);
item->color_obj = edje_object_add(evas_object_evas_get(obj));
_elm_theme_object_set(obj, item->color_obj, "colorselector", "item/color", elm_widget_style_get(obj));
evas_object_size_hint_weight_set(item->color_obj, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(item->color_obj, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_event_callback_add(item->color_obj, EVAS_CALLBACK_MOUSE_DOWN, _item_highlight, item);
evas_object_event_callback_add(item->color_obj, EVAS_CALLBACK_MOUSE_UP, _item_unhighlight, item);
elm_object_part_content_set(VIEW(item), "color_obj", item->color_obj);
_item_sizing_eval(item);
evas_object_show(VIEW(item));
return item;
}
static void
_colors_remove(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
_remove_items(wd);
_elm_config_colors_free(wd->palette_name);
}
static void _colors_save(Evas_Object *obj)
{
Eina_List *elist;
Widget_Data *wd = elm_widget_data_get(obj);
Elm_Color_Item *item;
_elm_config_colors_free(wd->palette_name);
EINA_LIST_FOREACH(wd->items, elist, item)
{
_elm_config_color_set(wd->palette_name, item->color->r, item->color->g,
item->color->b, item->color->a);
}
}
static void
_colors_load_apply(Evas_Object *obj)
{
Elm_Color_RGBA *color;
Eina_List *elist;
Eina_List *color_list;
Elm_Color_Item *item;
Widget_Data *wd = elm_widget_data_get(obj);
color_list = _elm_config_color_list_get(wd->palette_name);
if (!color_list) return;
EINA_LIST_FOREACH(color_list, elist, color)
{
item = _item_new(obj);
if (!item) return;
item->color = ELM_NEW(Elm_Color_RGBA);
if (!item->color) return;
item->color->r = color->r;
item->color->g = color->g;
item->color->b = color->b;
item->color->a = color->a;
elm_box_pack_end(wd->box, VIEW(item));
evas_object_color_set(item->color_obj, item->color->r, item->color->g,
item->color->b, item->color->a);
wd->items = eina_list_append(wd->items, item);
_sizing_eval_palette(obj);
}
wd->config_load = EINA_TRUE;
}
static void
_rgb_to_hsl(void *data)
{
Widget_Data *wd = data;
double r, g, b;
double v, m, vm;
double r2, g2, b2;
r = wd->r;
g = wd->g;
b = wd->b;
r /= 255.0;
g /= 255.0;
b /= 255.0;
v = (r > g) ? r : g;
v = (v > b) ? v : b;
m = (r < g) ? r : g;
m = (m < b) ? m : b;
wd->h = 0.0;
wd->s = 0.0;
wd->l = 0.0;
wd->l = (m + v) / 2.0;
if (wd->l <= 0.0) return;
vm = v - m;
wd->s = vm;
if (wd->s > 0.0) wd->s /= (wd->l <= 0.5) ? (v + m) : (2.0 - v - m);
else return;
r2 = (v - r) / vm;
g2 = (v - g) / vm;
b2 = (v - b) / vm;
if (r == v) wd->h = (g == m ? 5.0 + b2 : 1.0 - g2);
else if (g == v) wd->h = (b == m ? 1.0 + r2 : 3.0 - b2);
else wd->h = (r == m ? 3.0 + g2 : 5.0 - r2);
wd->h *= 60.0;
}
static void
_hsl_to_rgb(void *data)
{
Widget_Data *wd = data;
double r = 0, g = 0, b = 0;
double _h, _s, _l;
int i = 0;
double sv, vsf, f, p, q, t, v;
_h = wd->h;
_s = wd->s;
_l = wd->l;
if (_s == 0.0) r = g = b = _l;
else
{
if (_h == 360.0) _h = 0.0;
_h /= 60.0;
v = (_l <= 0.5) ? (_l * (1.0 + _s)) : (_l + _s - (_l * _s));
p = _l + _l - v;
if (v) sv = (v - p) / v;
else sv = 0;
i = (int)_h;
f = _h - i;
vsf = v * sv * f;
t = p + vsf;
q = v - vsf;
switch (i)
{
case 0:
r = v;
g = t;
b = p;
break;
case 1:
r = q;
g = v;
b = p;
break;
case 2:
r = p;
g = v;
b = t;
break;
case 3:
r = p;
g = q;
b = v;
break;
case 4:
r = t;
g = p;
b = v;
break;
case 5:
r = v;
g = p;
b = q;
break;
}
}
i = (int)(r * 255.0);
f = (r * 255.0) - i;
wd->r = (f <= 0.5) ? i : (i + 1);
i = (int)(g * 255.0);
f = (g * 255.0) - i;
wd->g = (f <= 0.5) ? i : (i + 1);
i = (int)(b * 255.0);
f = (b * 255.0) - i;
wd->b = (f <= 0.5) ? i : (i + 1);
}
static void
_color_with_saturation(void *data)
{
Widget_Data *wd = data;
if (wd->er > 127)
wd->sr = 127 + (int)((double)(wd->er - 127) * wd->s);
else
wd->sr = 127 - (int)((double)(127 - wd->er) * wd->s);
if (wd->eg > 127)
wd->sg = 127 + (int)((double)(wd->eg - 127) * wd->s);
else
wd->sg = 127 - (int)((double)(127 - wd->eg) * wd->s);
if (wd->eb > 127)
wd->sb = 127 + (int)((double)(wd->eb - 127) * wd->s);
else
wd->sb = 127 - (int)((double)(127 - wd->eb) * wd->s);
}
static void
_color_with_lightness(void *data)
{
Widget_Data *wd = data;
if (wd->l > 0.5)
{
wd->lr = wd->er + (int)((double)(255 - wd->er) * (wd->l - 0.5) * 2.0);
wd->lg = wd->eg + (int)((double)(255 - wd->eg) * (wd->l - 0.5) * 2.0);
wd->lb = wd->eb + (int)((double)(255 - wd->eb) * (wd->l - 0.5) * 2.0);
}
else if (wd->l < 0.5)
{
wd->lr = (double)wd->er * wd->l * 2.0;
wd->lg = (double)wd->eg * wd->l * 2.0;
wd->lb = (double)wd->eb * wd->l * 2.0;
}
else
{
wd->lr = wd->er;
wd->lg = wd->eg;
wd->lb = wd->eb;
}
}
static void
_draw_rects(void *data, double x)
{
Colorselector_Data *cp = data;
Widget_Data *wd = elm_widget_data_get(cp->parent);
double one_six = 1.0 / 6.0;
switch (cp->color_type)
{
case HUE:
wd->h = 360.0 * x;
if (x < one_six)
{
wd->er = 255;
wd->eg = (255.0 * x * 6.0);
wd->eb = 0;
}
else if (x < 2 * one_six)
{
wd->er = 255 - (int)(255.0 * (x - one_six) * 6.0);
wd->eg = 255;
wd->eb = 0;
}
else if (x < 3 * one_six)
{
wd->er = 0;
wd->eg = 255;
wd->eb = (int)(255.0 * (x - (2.0 * one_six)) * 6.0);
}
else if (x < 4 * one_six)
{
wd->er = 0;
wd->eg = 255 - (int)(255.0 * (x - (3.0 * one_six)) * 6.0);
wd->eb = 255;
}
else if (x < 5 * one_six)
{
wd->er = 255.0 * (x - (4.0 * one_six)) * 6.0;
wd->eg = 0;
wd->eb = 255;
}
else
{
wd->er = 255;
wd->eg = 0;
wd->eb = 255 - (int)(255.0 * (x - (5.0 * one_six)) * 6.0);
}
evas_object_color_set(wd->cp[0]->arrow, wd->er, wd->eg, wd->eb, 255);
evas_object_color_set(wd->cp[1]->bg_rect, wd->er, wd->eg, wd->eb, 255);
evas_object_color_set(wd->cp[2]->bg_rect, wd->er, wd->eg, wd->eb, 255);
evas_object_color_set(wd->cp[3]->bar, wd->er, wd->eg, wd->eb, 255);
_color_with_saturation(wd);
evas_object_color_set(wd->cp[1]->arrow, wd->sr, wd->sg, wd->sb, 255);
_color_with_lightness(wd);
evas_object_color_set(wd->cp[2]->arrow, wd->lr, wd->lg, wd->lb, 255);
evas_object_color_set(wd->cp[3]->arrow,
(wd->er * wd->a) / 255,
(wd->eg * wd->a) / 255,
(wd->eb * wd->a) / 255,
wd->a);
break;
case SATURATION:
wd->s = 1.0 - x;
_color_with_saturation(wd);
evas_object_color_set(wd->cp[1]->arrow, wd->sr, wd->sg, wd->sb, 255);
break;
case LIGHTNESS:
wd->l = x;
_color_with_lightness(wd);
evas_object_color_set(wd->cp[2]->arrow, wd->lr, wd->lg, wd->lb, 255);
break;
case ALPHA:
wd->a = 255.0 * x;
evas_object_color_set(wd->cp[3]->arrow,
(wd->er * wd->a) / 255,
(wd->eg * wd->a) / 255,
(wd->eb * wd->a) / 255,
wd->a);
break;
default:
break;
}
_hsl_to_rgb(wd);
}
static void
_arrow_cb(void *data, Evas_Object *obj, const char *emission __UNUSED__,
const char *source __UNUSED__)
{
Colorselector_Data *cp = data;
double x, y;
edje_object_part_drag_value_get(obj, "elm.arrow", &x, &y);
_draw_rects(data, x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
}
static void
_colorbar_cb(void *data, Evas *e, Evas_Object *obj __UNUSED__, void *event_info)
{
Colorselector_Data *cp = data;
Evas_Event_Mouse_Down *ev = event_info;
Evas_Coord x, y, w, h;
double arrow_x = 0, arrow_y;
evas_object_geometry_get(cp->bar, &x, &y, &w, &h);
edje_object_part_drag_value_get(cp->colorbar, "elm.arrow",
&arrow_x, &arrow_y);
if (w > 0) arrow_x = (double)(ev->canvas.x - x) / (double)w;
if (arrow_x > 1) arrow_x = 1;
if (arrow_x < 0) arrow_x = 0;
edje_object_part_drag_value_set(cp->colorbar, "elm.arrow", arrow_x, arrow_y);
_draw_rects(data, arrow_x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
evas_event_feed_mouse_cancel(e, 0, NULL);
evas_event_feed_mouse_down(e, 1, EVAS_BUTTON_NONE, 0, NULL);
}
static void
_left_button_clicked_cb(void *data, Evas_Object * obj __UNUSED__,
void *event_info __UNUSED__)
{
Colorselector_Data *cp = data;
double x, y;
edje_object_signal_emit(cp->lbt, "elm,state,left,button,down",
"left_button");
edje_object_part_drag_value_get(cp->colorbar, "elm.arrow", &x, &y);
switch(cp->color_type)
{
case HUE :
x -= 1.0 / HUE_STEP;
break;
case SATURATION :
x -= 1.0 / SAT_STEP;
break;
case LIGHTNESS :
x -= 1.0 / LIG_STEP;
break;
case ALPHA :
x -= 1.0 / ALP_STEP;
break;
default :
break;
}
if (x < 0.0) x = 0.0;
edje_object_part_drag_value_set(cp->colorbar, "elm.arrow", x, y);
_draw_rects(data, x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
}
static void
_left_button_repeat_cb(void *data, Evas_Object * obj __UNUSED__,
void *event_info __UNUSED__)
{
Colorselector_Data *cp = data;
double x, y;
edje_object_part_drag_value_get(cp->colorbar, "elm.arrow", &x, &y);
x -= 1.0 / BASE_STEP;
if (x < 0.0) x = 0.0;
edje_object_part_drag_value_set(cp->colorbar, "elm.arrow", x, y);
_draw_rects(data, x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
}
static void
_right_button_clicked_cb(void *data, Evas_Object * obj __UNUSED__,
void *event_info __UNUSED__)
{
Colorselector_Data *cp = data;
double x, y;
edje_object_signal_emit(cp->rbt, "elm,state,right,button,down",
"right_button");
edje_object_part_drag_value_get(cp->colorbar, "elm.arrow", &x, &y);
switch(cp->color_type)
{
case HUE :
x += 1.0 / HUE_STEP;
break;
case SATURATION :
x += 1.0 / SAT_STEP;
break;
case LIGHTNESS :
x += 1.0 / LIG_STEP;
break;
case ALPHA :
x += 1.0 / ALP_STEP;
break;
default :
break;
}
if (x > 1.0) x = 1.0;
edje_object_part_drag_value_set(cp->colorbar, "elm.arrow", x, y);
_draw_rects(data, x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
}
static void
_right_button_repeat_cb(void *data, Evas_Object * obj __UNUSED__,
void *event_info __UNUSED__)
{
Colorselector_Data *cp = data;
double x, y;
edje_object_part_drag_value_get(cp->colorbar, "elm.arrow", &x, &y);
x += 1.0 / BASE_STEP;
if (x > 1.0) x = 1.0;
edje_object_part_drag_value_set(cp->colorbar, "elm.arrow", x, y);
_draw_rects(data, x);
evas_object_smart_callback_call(cp->parent, SIG_CHANGED, NULL);
}
static void
_add_colorbar(Evas_Object *obj)
{
char colorbar_name[128];
char colorbar_s[128];
Widget_Data *wd;
Evas *e;
int i = 0;
char buf[1024];
wd = elm_widget_data_get(obj);
if (!wd) return;
e = evas_object_evas_get(obj);
for (i = 0; i < 4; i++)
{
wd->cp[i] = ELM_NEW(Colorselector_Data);
wd->cp[i]->parent = obj;
switch(i)
{
case 0 :
wd->cp[i]->color_type = HUE;
break;
case 1 :
wd->cp[i]->color_type = SATURATION;
break;
case 2 :
wd->cp[i]->color_type = LIGHTNESS;
break;
case 3 :
wd->cp[i]->color_type = ALPHA;
break;
default :
break;
}
/* load colorbar area */
wd->cp[i]->colorbar = edje_object_add(e);
_elm_theme_object_set(obj, wd->cp[i]->colorbar, "colorselector", "base",
elm_widget_style_get(obj));
snprintf(colorbar_name, sizeof(colorbar_name), "colorbar_%d", i);
snprintf(colorbar_s, sizeof(colorbar_s), "elm.colorbar_%d", i);
edje_object_signal_callback_add(wd->cp[i]->colorbar, "drag", "*",
_arrow_cb, wd->cp[i]);
edje_object_part_swallow(wd->sel, colorbar_s, wd->cp[i]->colorbar);
elm_widget_sub_object_add(obj, wd->cp[i]->colorbar);
/* load colorbar image */
wd->cp[i]->bar = edje_object_add(e);
snprintf(buf, sizeof(buf), "%s/%s", colorbar_name,
elm_widget_style_get(obj));
_elm_theme_object_set(obj, wd->cp[i]->bar, "colorselector", "image",
buf);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.bar",
wd->cp[i]->bar);
elm_widget_sub_object_add(obj, wd->cp[i]->bar);
/* provide expanded touch area */
wd->cp[i]->touch_area = evas_object_rectangle_add(e);
evas_object_color_set(wd->cp[i]->touch_area, 0, 0, 0, 0);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.arrow_bg",
wd->cp[i]->touch_area);
evas_object_event_callback_add(wd->cp[i]->touch_area,
EVAS_CALLBACK_MOUSE_DOWN, _colorbar_cb,
wd->cp[i]);
elm_widget_sub_object_add(obj, wd->cp[i]->touch_area);
/* load background rectangle of the colorbar. used for
changing color of the opacity bar */
if ((i == 1) || (i == 2))
{
wd->cp[i]->bg_rect = evas_object_rectangle_add(e);
evas_object_color_set(wd->cp[i]->bg_rect, wd->er, wd->eg, wd->eb,
255);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.bar_bg",
wd->cp[i]->bg_rect);
elm_widget_sub_object_add(obj, wd->cp[i]->bg_rect);
}
if (i == 3)
{
wd->cp[i]->bg_rect = edje_object_add(e);
snprintf(buf, sizeof(buf), "%s/%s", colorbar_name,
elm_widget_style_get(obj));
_elm_theme_object_set(obj, wd->cp[i]->bg_rect, "colorselector",
"bg_image", buf);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.bar_bg",
wd->cp[i]->bg_rect);
elm_widget_sub_object_add(obj, wd->cp[i]->bg_rect);
evas_object_color_set(wd->cp[i]->bar, wd->er, wd->eg, wd->eb, 255);
}
/* load arrow image, pointing the colorbar */
wd->cp[i]->arrow = edje_object_add(e);
_elm_theme_object_set(obj, wd->cp[i]->arrow, "colorselector", "arrow",
elm_widget_style_get(obj));
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.arrow_icon",
wd->cp[i]->arrow);
elm_widget_sub_object_add(obj, wd->cp[i]->arrow);
if (i == 2)
evas_object_color_set(wd->cp[i]->arrow, 0, 0, 0, 255);
else
evas_object_color_set(wd->cp[i]->arrow, wd->er, wd->eg, wd->eb, 255);
/* load left button */
wd->cp[i]->lbt = elm_button_add(obj);
snprintf(buf, sizeof(buf), "colorselector/left/%s",
elm_widget_style_get(obj));
elm_object_style_set(wd->cp[i]->lbt, buf);
elm_widget_sub_object_add(obj, wd->cp[i]->lbt);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.l_button",
wd->cp[i]->lbt);
evas_object_smart_callback_add(wd->cp[i]->lbt, "clicked",
_left_button_clicked_cb, wd->cp[i]);
elm_button_autorepeat_set(wd->cp[i]->lbt, EINA_TRUE);
elm_button_autorepeat_initial_timeout_set(wd->cp[i]->lbt,
_elm_config->longpress_timeout);
elm_button_autorepeat_gap_timeout_set(wd->cp[i]->lbt,
(1.0 / _elm_config->fps));
evas_object_smart_callback_add(wd->cp[i]->lbt, "repeated",
_left_button_repeat_cb, wd->cp[i]);
/* load right button */
wd->cp[i]->rbt = elm_button_add(obj);
snprintf(buf, sizeof(buf), "colorselector/right/%s",
elm_widget_style_get(obj));
elm_object_style_set(wd->cp[i]->rbt, buf);
elm_widget_sub_object_add(obj, wd->cp[i]->rbt);
edje_object_part_swallow(wd->cp[i]->colorbar, "elm.r_button",
wd->cp[i]->rbt);
evas_object_smart_callback_add(wd->cp[i]->rbt, "clicked",
_right_button_clicked_cb, wd->cp[i]);
elm_button_autorepeat_set(wd->cp[i]->rbt, EINA_TRUE);
elm_button_autorepeat_initial_timeout_set(wd->cp[i]->rbt,
_elm_config->longpress_timeout);
elm_button_autorepeat_gap_timeout_set(wd->cp[i]->rbt,
(1.0 / _elm_config->fps));
evas_object_smart_callback_add(wd->cp[i]->rbt, "repeated",
_right_button_repeat_cb, wd->cp[i]);
}
}
static void
_set_color(Evas_Object *obj, int r, int g, int b, int a)
{
Widget_Data *wd = elm_widget_data_get(obj);
double x, y;
wd->r = r;
wd->g = g;
wd->b = b;
wd->a = a;
_rgb_to_hsl(wd);
edje_object_part_drag_value_get(wd->cp[0]->colorbar, "elm.arrow", &x, &y);
x = wd->h / 360.0;
edje_object_part_drag_value_set(wd->cp[0]->colorbar, "elm.arrow", x, y);
_draw_rects(wd->cp[0], x);
edje_object_part_drag_value_get(wd->cp[1]->colorbar, "elm.arrow", &x, &y);
x = 1.0 - wd->s;
edje_object_part_drag_value_set(wd->cp[1]->colorbar, "elm.arrow", x, y);
_draw_rects(wd->cp[1], x);
edje_object_part_drag_value_get(wd->cp[2]->colorbar, "elm.arrow", &x, &y);
x = wd->l;
edje_object_part_drag_value_set(wd->cp[2]->colorbar, "elm.arrow", x, y);
_draw_rects(wd->cp[2], x);
edje_object_part_drag_value_get(wd->cp[3]->colorbar, "elm.arrow", &x, &y);
x = wd->a / 255.0;
edje_object_part_drag_value_set(wd->cp[3]->colorbar, "elm.arrow", x, y);
_draw_rects(wd->cp[3], x);
}
EAPI Evas_Object *
elm_colorselector_add(Evas_Object *parent)
{
Evas_Object *obj = NULL;
Widget_Data *wd = NULL;
Evas *e;
const char *hpadstr, *vpadstr;
unsigned int h_pad = DEFAULT_HOR_PAD;
unsigned int v_pad = DEFAULT_VER_PAD;
ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
ELM_SET_WIDTYPE(widtype, "colorselector");
elm_widget_type_set(obj, "colorselector");
elm_widget_sub_object_add(parent, obj);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
evas_object_smart_callbacks_descriptions_set(obj, _signals);
/* load background edj */
wd->base = edje_object_add(e);
_elm_theme_object_set(obj, wd->base, "colorselector", "palette", "default");
elm_widget_resize_object_set(obj, wd->base);
evas_object_event_callback_add(wd->base, EVAS_CALLBACK_RESIZE,
_resize_cb, obj);
wd->box = elm_box_add(obj);
elm_box_layout_set(wd->box, evas_object_box_layout_flow_horizontal,
NULL, NULL);
elm_box_horizontal_set(wd->box, EINA_TRUE);
evas_object_size_hint_weight_set(wd->box, EVAS_HINT_EXPAND,
0);
evas_object_size_hint_align_set(wd->box, EVAS_HINT_FILL, 0);
elm_box_homogeneous_set(wd->box, EINA_TRUE);
hpadstr = edje_object_data_get(wd->sel, "horizontal_pad");
if (hpadstr) h_pad = atoi(hpadstr);
vpadstr = edje_object_data_get(wd->sel, "vertical_pad");
if (vpadstr) v_pad = atoi(vpadstr);
elm_box_padding_set(wd->box, h_pad, v_pad);
elm_box_align_set(wd->box, 0.5, 0.5);
elm_widget_sub_object_add(obj, wd->box);
evas_object_show(wd->box);
edje_object_part_swallow(wd->base, "palette", wd->box);
wd->palette_name = eina_stringshare_add("default");
_colors_load_apply(obj);
/* load background edj */
wd->sel = edje_object_add(e);
_elm_theme_object_set(obj, wd->sel, "colorselector", "bg", "default");
edje_object_part_swallow(wd->base, "selector", wd->sel);
wd->mode = ELM_COLORSELECTOR_BOTH;
wd->er = 255;
wd->eg = 0;
wd->eb = 0;
wd->h = 0.0;
wd->s = 1.0;
wd->l = 0.0;
wd->a = 255;
_hsl_to_rgb(wd);
_add_colorbar(obj);
_sizing_eval(obj);
return obj;
}
EAPI void
elm_colorselector_color_set(Evas_Object *obj, int r, int g, int b, int a)
{
ELM_CHECK_WIDTYPE(obj, widtype);
_set_color(obj, r, g, b, a);
}
EAPI void
elm_colorselector_color_get(const Evas_Object *obj, int *r, int *g, int *b, int *a)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (r) *r = wd->r;
if (g) *g = wd->g;
if (b) *b = wd->b;
if (a) *a = wd->a;
}
EAPI void
elm_colorselector_mode_set(Evas_Object *obj, Elm_Colorselector_Mode mode)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->mode == mode) return;
wd->mode = mode;
switch (wd->mode)
{
case ELM_COLORSELECTOR_PALETTE:
if (edje_object_part_swallow_get(wd->base, "selector"))
{
edje_object_part_unswallow(wd->base, wd->sel);
evas_object_hide(wd->sel);
}
if (!edje_object_part_swallow_get(wd->base, "palette"))
{
edje_object_part_swallow(wd->base, "palette", wd->box);
evas_object_show(wd->box);
}
break;
case ELM_COLORSELECTOR_COMPONENTS:
if (edje_object_part_swallow_get(wd->base, "palette"))
{
edje_object_part_unswallow(wd->base, wd->box);
evas_object_hide(wd->box);
}
if (!edje_object_part_swallow_get(wd->base, "selector"))
{
edje_object_part_swallow(wd->base, "selector", wd->sel);
evas_object_show(wd->sel);
}
break;
case ELM_COLORSELECTOR_BOTH:
if (!edje_object_part_swallow_get(wd->base, "palette"))
{
edje_object_part_swallow(wd->base, "palette", wd->box);
evas_object_show(wd->box);
}
if (!edje_object_part_swallow_get(wd->base, "selector"))
{
edje_object_part_swallow(wd->base, "selector", wd->sel);
evas_object_show(wd->sel);
}
break;
default:
return;
}
_sizing_eval(obj);
}
EAPI Elm_Colorselector_Mode
elm_colorselector_mode_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_COLORSELECTOR_BOTH;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return ELM_COLORSELECTOR_BOTH;
return wd->mode;
}
EAPI void
elm_colorselector_palette_item_color_get(const Elm_Object_Item *it, int *r __UNUSED__, int *g __UNUSED__, int *b __UNUSED__, int*a __UNUSED__)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
Elm_Color_Item *item;
item = (Elm_Color_Item *) it;
if (item)
{
if(r) *r = item->color->r;
if(g) *g = item->color->g;
if(b) *b = item->color->b;
if(a) *a = item->color->a;
}
}
EAPI void
elm_colorselector_palette_item_color_set(Elm_Object_Item *it, int r __UNUSED__, int g __UNUSED__, int b __UNUSED__, int a __UNUSED__)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
Elm_Color_Item *item;
item = (Elm_Color_Item *) it;
item->color->r = r;
item->color->g = g;
item->color->b = b;
item->color->a = a;
evas_object_color_set(item->color_obj, item->color->r, item->color->g, item->color->b, item->color->a);
_colors_save(WIDGET(it));
}
EAPI Elm_Object_Item *
elm_colorselector_palette_color_add(Evas_Object *obj, int r, int g, int b, int a)
{
Elm_Color_Item *item;
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
if (wd->config_load)
{
_colors_remove(obj);
wd->config_load = EINA_FALSE;
}
item = _item_new(obj);
if (!item) return NULL;
item->color = ELM_NEW(Elm_Color_RGBA);
if (!item->color) return NULL;
item->color->r = r;
item->color->g = g;
item->color->b = b;
item->color->a = a;
_elm_config_color_set(wd->palette_name, item->color->r, item->color->g,
item->color->b, item->color->a);
elm_box_pack_end(wd->box, VIEW(item));
evas_object_color_set(item->color_obj, item->color->r, item->color->g,
item->color->b, item->color->a);
wd->items = eina_list_append(wd->items, item);
_sizing_eval(obj);
return (Elm_Object_Item *) item;
}
EAPI void
elm_colorselector_palette_clear(Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
_colors_remove(obj);
}
EAPI void
elm_colorselector_palette_name_set(Evas_Object *obj, const char *palette_name)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (!strcmp(wd->palette_name, palette_name)) return;
if (palette_name)
{
_colors_remove(obj);
eina_stringshare_replace(&wd->palette_name, palette_name);
_colors_load_apply(obj);
}
}
EAPI const char*
elm_colorselector_palette_name_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return wd->palette_name;
}
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