You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

671 lines
18 KiB

#define _XOPEN_SOURCE 600
#include "e.h"
#define SMART_NAME "e_slider"
#define API_ENTRY E_Smart_Data * sd; sd = evas_object_smart_data_get(obj); if ((!obj) || (!sd) || (evas_object_type_get(obj) && strcmp(evas_object_type_get(obj), SMART_NAME)))
#define INTERNAL_ENTRY E_Smart_Data * sd; sd = evas_object_smart_data_get(obj); if (!sd) return;
typedef struct _E_Smart_Data E_Smart_Data;
typedef struct _E_Slider_Special_Value E_Slider_Special_Value;
struct _E_Smart_Data
{
Evas_Coord x, y, w, h;
Evas_Object *smart_obj;
Evas_Object *edje_obj;
Evas_Object *event;
double val, val_min, val_max, val_range, step_size;
int reversed, step_count, horizontal;
int direction;
int changing;
const char *format;
Evas_Coord minw, minh;
Ecore_Timer *set_timer;
Eina_List *special_values;
Eina_Bool disabled E_BITFIELD;
};
struct _E_Slider_Special_Value
{
double value;
double error;
const char *label;
};
/* local subsystem functions */
static Eina_Bool _e_smart_set_timer(void *data);
static void _e_smart_value_update(E_Smart_Data *sd);
static void _e_smart_value_update_now(E_Smart_Data *sd);
static void _e_smart_value_fetch(E_Smart_Data *sd);
static void _e_smart_value_limit(E_Smart_Data *sd);
static void _e_smart_format_update(E_Smart_Data *sd);
static void _e_smart_signal_cb_drag(void *data, Evas_Object *obj, const char *emission, const char *source);
static void _e_smart_signal_cb_drag_start(void *data, Evas_Object *obj, const char *emission, const char *source);
static void _e_smart_signal_cb_drag_stop(void *data, Evas_Object *obj, const char *emission, const char *source);
static void _e_smart_event_key_down(void *data, Evas *e, Evas_Object *obj, void *event_info);
static void _e_smart_event_mouse_down(void *data, Evas *e, Evas_Object *obj EINA_UNUSED, void *event_info);
static void _e_smart_reconfigure(E_Smart_Data *sd);
static void _e_smart_add(Evas_Object *obj);
static void _e_smart_del(Evas_Object *obj);
static void _e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
static void _e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
static void _e_smart_show(Evas_Object *obj);
static void _e_smart_hide(Evas_Object *obj);
static void _e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
static void _e_smart_clip_set(Evas_Object *obj, Evas_Object *clip);
static void _e_smart_clip_unset(Evas_Object *obj);
static void _e_smart_init(void);
/* local subsystem globals */
static Evas_Smart *_e_smart = NULL;
/* externally accessible functions */
E_API Evas_Object *
e_slider_add(Evas *evas)
{
_e_smart_init();
return evas_object_smart_add(evas, _e_smart);
}
E_API void
e_slider_orientation_set(Evas_Object *obj, int horizontal)
{
API_ENTRY return;
if (sd->horizontal == horizontal) return;
sd->horizontal = horizontal;
if (sd->horizontal)
e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
"e/widgets/slider_horizontal");
else
e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
"e/widgets/slider_vertical");
edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
_e_smart_value_update(sd);
}
E_API int
e_slider_orientation_get(Evas_Object *obj)
{
API_ENTRY return 0;
return sd->horizontal;
}
E_API void
e_slider_value_set(Evas_Object *obj, double val)
{
API_ENTRY return;
sd->val = val;
_e_smart_value_update_now(sd);
}
E_API double
e_slider_value_get(Evas_Object *obj)
{
API_ENTRY return 0.0;
return sd->val;
}
E_API void
e_slider_value_range_set(Evas_Object *obj, double min, double max)
{
API_ENTRY return;
sd->val_min = min;
sd->val_max = max;
if (sd->val_max < sd->val_min) sd->val_min = sd->val_max;
sd->val_range = sd->val_max - sd->val_min;
sd->direction = 0;
_e_smart_value_limit(sd);
_e_smart_value_update_now(sd);
}
E_API void
e_slider_value_range_get(Evas_Object *obj, double *min, double *max)
{
API_ENTRY return;
if (min) *min = sd->val_min;
if (max) *max = sd->val_max;
}
E_API void
e_slider_value_step_size_set(Evas_Object *obj, double step_size)
{
double step;
API_ENTRY return;
if (step_size < 0.0) step_size = 0.0;
sd->step_size = step_size;
step = 0.0;
if (sd->val_range > 0.0)
step = step_size / sd->val_range;
edje_object_part_drag_step_set
(sd->edje_obj, "e.dragable.slider", step, step);
sd->direction = 0;
_e_smart_value_limit(sd);
_e_smart_value_update_now(sd);
}
E_API double
e_slider_value_step_size_get(Evas_Object *obj)
{
API_ENTRY return 0.0;
return sd->step_size;
}
E_API void
e_slider_value_step_count_set(Evas_Object *obj, int step_count)
{
API_ENTRY return;
sd->step_count = step_count;
sd->direction = 0;
_e_smart_value_limit(sd);
_e_smart_value_update_now(sd);
}
E_API int
e_slider_value_step_count_get(Evas_Object *obj)
{
API_ENTRY return 0;
return sd->step_count;
}
E_API void
e_slider_value_format_display_set(Evas_Object *obj, const char *format)
{
int changed = 0;
API_ENTRY return;
if (((sd->format) && (!format)) || ((!sd->format) && (format))) changed = 1;
if (sd->format) eina_stringshare_del(sd->format);
sd->format = NULL;
if (format) sd->format = eina_stringshare_add(format);
if (changed)
{
if (sd->format)
edje_object_signal_emit(sd->edje_obj, "e,action,show,label", "e");
else
edje_object_signal_emit(sd->edje_obj, "e,action,hide,label", "e");
}
_e_smart_format_update(sd);
edje_object_message_signal_process(sd->edje_obj);
edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
}
E_API const char *
e_slider_value_format_display_get(Evas_Object *obj)
{
API_ENTRY return NULL;
return sd->format;
}
E_API void
e_slider_direction_set(Evas_Object *obj, int reversed)
{
API_ENTRY return;
sd->reversed = reversed;
_e_smart_value_update_now(sd);
}
E_API void
e_slider_disabled_set(Evas_Object *obj, Eina_Bool disable)
{
API_ENTRY return;
if (sd->disabled == disable) return;
sd->disabled = disable;
if (disable)
edje_object_signal_emit(sd->edje_obj, "e,state,disabled", "e");
else
edje_object_signal_emit(sd->edje_obj, "e,state,enabled", "e");
}
E_API int
e_slider_direction_get(Evas_Object *obj)
{
API_ENTRY return 0;
return sd->reversed;
}
E_API void
e_slider_size_min_get(Evas_Object *obj, Evas_Coord *minw, Evas_Coord *minh)
{
API_ENTRY return;
if (minw) *minw = sd->minw;
if (minh) *minh = sd->minh;
}
E_API Evas_Object *
e_slider_edje_object_get(Evas_Object *obj)
{
API_ENTRY return NULL;
return sd->edje_obj;
}
E_API void
e_slider_special_value_add(Evas_Object *obj, double value, double error, const char *label)
{
E_Slider_Special_Value *sv;
API_ENTRY return;
sv = malloc(sizeof(E_Slider_Special_Value));
if (!sv) return;
sv->value = value;
sv->error = error;
sv->label = eina_stringshare_add(label);
sd->special_values = eina_list_append(sd->special_values, sv);
_e_smart_format_update(sd);
}
/* local subsystem functions */
static Eina_Bool
_e_smart_set_timer(void *data)
{
E_Smart_Data *sd = data;
double pos = 0.0;
if (sd->val_range > 0.0) pos = (sd->val - sd->val_min) / sd->val_range;
if (pos < 0.0) pos = 0.0;
else if (pos > 1.0)
pos = 1.0;
if (sd->reversed) pos = 1.0 - pos;
sd->changing++;
if (sd->set_timer) ecore_timer_del(sd->set_timer);
sd->set_timer = NULL;
edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", pos, pos);
edje_object_message_signal_process(sd->edje_obj);
sd->changing--;
return ECORE_CALLBACK_CANCEL;
}
static void
_e_smart_value_update(E_Smart_Data *sd)
{
if (sd->set_timer) ecore_timer_del(sd->set_timer);
sd->set_timer = ecore_timer_loop_add(0.05, _e_smart_set_timer, sd);
}
static void
_e_smart_value_update_now(E_Smart_Data *sd)
{
_e_smart_set_timer(sd);
}
static void
_e_smart_value_fetch(E_Smart_Data *sd)
{
double posx = 0.0, posy = 0.0, pos = 0.0;
edje_object_part_drag_value_get
(sd->edje_obj, "e.dragable.slider", &posx, &posy);
if (sd->horizontal) pos = posx;
else pos = posy;
sd->val = (pos * sd->val_range) + sd->val_min;
}
static void
_e_smart_value_limit(E_Smart_Data *sd)
{
if (sd->val < sd->val_min) sd->val = sd->val_min;
if (sd->val > sd->val_max) sd->val = sd->val_max;
if (sd->val_range > 0.0)
{
if (sd->step_count > 0)
{
double p, s;
s = sd->val_range / sd->step_count;
p = sd->val / s;
if (sd->direction == 1)
p = ceil(p);
else if (sd->direction == -1)
p = floor(p);
else
p = round(p);
sd->val = p * s;
}
else if (sd->step_size > 0.0)
{
double p;
p = sd->val / sd->step_size;
if (sd->direction == 1)
p = ceil(p);
else if (sd->direction == -1)
p = floor(p);
else
p = round(p);
sd->val = p * sd->step_size;
}
}
sd->direction = 0;
}
static void
_e_smart_format_update(E_Smart_Data *sd)
{
const E_Slider_Special_Value *sv;
const Eina_List *l;
EINA_LIST_FOREACH(sd->special_values, l, sv)
if (fabs(sd->val - sv->value) <= sv->error)
{
edje_object_part_text_set(sd->edje_obj, "e.text.label", sv->label);
return;
}
if (sd->format)
{
char buf[256];
DISABLE_WARNING(format-nonliteral, format-nonliteral, format-nonliteral)
snprintf(buf, sizeof(buf), sd->format, sd->val);
ENABLE_WARNING(format-nonliteral, format-nonliteral, format-nonliteral)
edje_object_part_text_set(sd->edje_obj, "e.text.label", buf);
}
}
static void
_e_smart_signal_cb_drag(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
E_Smart_Data *sd = data;
double pval = sd->val;
_e_smart_value_fetch(sd);
_e_smart_value_limit(sd);
_e_smart_format_update(sd);
if (sd->changing) return;
if (!EINA_DBL_EQ(sd->val, pval))
evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
}
static void
_e_smart_signal_cb_drag_start(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
E_Smart_Data *sd = data;
double pval = sd->val;
_e_smart_value_fetch(sd);
_e_smart_value_limit(sd);
_e_smart_format_update(sd);
if (sd->changing) return;
if (!EINA_DBL_EQ(sd->val, pval))
evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
}
static void
_e_smart_signal_cb_drag_stop(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
E_Smart_Data *sd = data;
double pval = sd->val;
_e_smart_value_fetch(sd);
_e_smart_value_limit(sd);
_e_smart_format_update(sd);
_e_smart_value_update(sd);
if (sd->changing) return;
if (!EINA_DBL_EQ(sd->val, pval))
evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
}
static void
_e_smart_signal_cb_wheel_up(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
E_Smart_Data *sd = data;
if (sd->disabled) return;
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", -0.05, -0.05);
sd->direction = -1;
}
static void
_e_smart_signal_cb_wheel_down(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
E_Smart_Data *sd = data;
if (sd->disabled) return;
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", 0.05, 0.05);
sd->direction = 1;
}
static void
_e_smart_event_key_down(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
{
Evas_Event_Key_Down *ev = event_info;
E_Smart_Data *sd = data;
if (sd->disabled) return;
if ((!strcmp(ev->key, "Down")) ||
(!strcmp(ev->key, "KP_Down")) ||
(!strcmp(ev->key, "Left")) ||
(!strcmp(ev->key, "KP_Left")))
{
if (sd->step_count > 0)
{
double s = sd->val_range / sd->step_count;
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", -s, -s);
}
else
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", -1, -1);
sd->direction = -1;
}
else if ((!strcmp(ev->key, "Up")) ||
(!strcmp(ev->key, "KP_Up")) ||
(!strcmp(ev->key, "Right")) ||
(!strcmp(ev->key, "KP_Right")))
{
if (sd->step_count > 0)
{
double s = sd->val_range / sd->step_count;
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", s, s);
}
else
edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", 1, 1);
sd->direction = 1;
}
else if ((!strcmp(ev->key, "Home")) ||
(!strcmp(ev->key, "KP_Home")))
{
edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", 0., 0.);
sd->direction = 0;
}
else if ((!strcmp(ev->key, "End")) ||
(!strcmp(ev->key, "KP_End")))
{
edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", 1., 1.);
sd->direction = 0;
}
}
static void
_e_smart_event_mouse_down(void *data, Evas *e, Evas_Object *obj EINA_UNUSED, void *event_info)
{
Evas_Event_Mouse_Down *ev = event_info;
Evas_Coord x, y, w, h;
E_Smart_Data *sd = data;
double pos;
static int in_md = 0;
if (sd->disabled) return;
if (in_md > 0) return;
in_md++;
evas_object_geometry_get(sd->event, &x, &y, &w, &h);
if (sd->horizontal)
{
pos = ((double)ev->output.x - (double)x) / (double)w;
if (pos > 1.0) pos = 1.0;
if (pos < 0.0) pos = 0.0;
if (sd->reversed)
pos = 1.0 - pos;
}
else
{
pos = (((double)ev->output.y - (double)y) / (double)h);
if (pos > 1.0) pos = 1.0;
if (pos < 0.0) pos = 0.0;
if (!sd->reversed)
pos = 1.0 - pos;
}
edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", pos, pos);
edje_object_message_signal_process(sd->edje_obj); /* really needed or go in infinite loop */
evas_event_feed_mouse_cancel(e, 0, NULL);
evas_event_feed_mouse_down(e, 1, EVAS_BUTTON_NONE, ev->timestamp, NULL);
in_md--;
}
static void
_e_smart_reconfigure(E_Smart_Data *sd)
{
evas_object_move(sd->edje_obj, sd->x, sd->y);
evas_object_resize(sd->edje_obj, sd->w, sd->h);
}
static void
_e_smart_add(Evas_Object *obj)
{
E_Smart_Data *sd;
sd = calloc(1, sizeof(E_Smart_Data));
if (!sd) return;
evas_object_smart_data_set(obj, sd);
sd->smart_obj = obj;
sd->x = 0;
sd->y = 0;
sd->w = 0;
sd->h = 0;
sd->val = 0.0;
sd->val_min = 0.0;
sd->val_max = 1.0;
sd->val_range = 1.0;
sd->step_size = 0.01;
sd->reversed = 0;
sd->step_count = 0;
sd->horizontal = 0;
sd->format = NULL;
sd->direction = 0;
sd->edje_obj = edje_object_add(evas_object_evas_get(obj));
e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
"e/widgets/slider_vertical");
edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
evas_object_smart_member_add(sd->edje_obj, obj);
sd->event = evas_object_rectangle_add(evas_object_evas_get(obj));
evas_object_color_set(sd->event, 0, 0, 0, 0);
evas_object_pass_events_set(sd->event, EINA_TRUE);
edje_object_part_swallow(sd->edje_obj, "e.swallow.bar", sd->event);
evas_object_smart_member_add(sd->event, sd->edje_obj);
edje_object_signal_callback_add(sd->edje_obj, "drag", "*", _e_smart_signal_cb_drag, sd);
edje_object_signal_callback_add(sd->edje_obj, "drag,start", "*", _e_smart_signal_cb_drag_start, sd);
edje_object_signal_callback_add(sd->edje_obj, "drag,stop", "*", _e_smart_signal_cb_drag_stop, sd);
edje_object_signal_callback_add(sd->edje_obj, "drag,step", "*", _e_smart_signal_cb_drag_stop, sd);
edje_object_signal_callback_add(sd->edje_obj, "drag,set", "*", _e_smart_signal_cb_drag_stop, sd);
edje_object_signal_callback_add(sd->edje_obj, "mouse,wheel,0,1", "*", _e_smart_signal_cb_wheel_up, sd);
edje_object_signal_callback_add(sd->edje_obj, "mouse,wheel,0,-1", "*", _e_smart_signal_cb_wheel_down, sd);
evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_DOWN, _e_smart_event_key_down, sd);
evas_object_event_callback_add(sd->event, EVAS_CALLBACK_MOUSE_DOWN, _e_smart_event_mouse_down, sd);
}
static void
_e_smart_del(Evas_Object *obj)
{
E_Slider_Special_Value *sv;
INTERNAL_ENTRY;
evas_object_del(sd->event);
evas_object_del(sd->edje_obj);
if (sd->format) eina_stringshare_del(sd->format);
if (sd->set_timer) ecore_timer_del(sd->set_timer);
EINA_LIST_FREE(sd->special_values, sv)
{
eina_stringshare_del(sv->label);
free(sv);
}
free(sd);
}
static void
_e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
{
INTERNAL_ENTRY;
if ((sd->x == x) && (sd->y == y)) return;
sd->x = x;
sd->y = y;
_e_smart_reconfigure(sd);
}
static void
_e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
{
INTERNAL_ENTRY;
if ((sd->w == w) && (sd->h == h)) return;
sd->w = w;
sd->h = h;
_e_smart_reconfigure(sd);
}
static void
_e_smart_show(Evas_Object *obj)
{
INTERNAL_ENTRY;
evas_object_show(sd->edje_obj);
}
static void
_e_smart_hide(Evas_Object *obj)
{
INTERNAL_ENTRY;
evas_object_hide(sd->edje_obj);
}
static void
_e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a)
{
INTERNAL_ENTRY;
evas_object_color_set(sd->edje_obj, r, g, b, a);
}
static void
_e_smart_clip_set(Evas_Object *obj, Evas_Object *clip)
{
INTERNAL_ENTRY;
evas_object_clip_set(sd->edje_obj, clip);
}
static void
_e_smart_clip_unset(Evas_Object *obj)
{
INTERNAL_ENTRY;
evas_object_clip_unset(sd->edje_obj);
}
/* never need to touch this */
static void
_e_smart_init(void)
{
if (_e_smart) return;
{
static Evas_Smart_Class sc = EVAS_SMART_CLASS_INIT_NAME_VERSION(SMART_NAME);
if (!sc.add)
{
sc.add = _e_smart_add;
sc.del = _e_smart_del;
sc.move = _e_smart_move;
sc.resize = _e_smart_resize;
sc.show = _e_smart_show;
sc.hide = _e_smart_hide;
sc.color_set = _e_smart_color_set;
sc.clip_set = _e_smart_clip_set;
sc.clip_unset = _e_smart_clip_unset;
}
_e_smart = evas_smart_class_new(&sc);
}
}