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

835 lines
21 KiB
C

#include <Elementary.h>
#include "elm_priv.h"
#include "elm_widget_layout.h"
#include <ctype.h>
static const char SPINNER_SMART_NAME[] = "elm_spinner";
typedef struct _Elm_Spinner_Smart_Data Elm_Spinner_Smart_Data;
typedef struct _Elm_Spinner_Special_Value Elm_Spinner_Special_Value;
struct _Elm_Spinner_Smart_Data
{
Elm_Layout_Smart_Data base;
Evas_Object *ent;
const char *label;
double val, val_min, val_max, orig_val, step, val_base;
double drag_start_pos, spin_speed, interval, first_interval;
int round;
Ecore_Timer *delay, *spin;
Eina_List *special_values;
Eina_Bool entry_visible : 1;
Eina_Bool dragging : 1;
Eina_Bool editable : 1;
Eina_Bool wrap : 1;
};
struct _Elm_Spinner_Special_Value
{
double value;
const char *label;
};
static const char SIG_CHANGED[] = "changed";
static const char SIG_DELAY_CHANGED[] = "delay,changed";
static const Evas_Smart_Cb_Description _smart_callbacks[] = {
{SIG_CHANGED, ""},
{SIG_DELAY_CHANGED, ""},
{NULL, NULL}
};
#define ELM_SPINNER_SMART_DATA(_sd) \
((Elm_Spinner_Smart_Data *)_sd)
#define ELM_SPINNER_DATA_GET(o, sd) \
Elm_Spinner_Smart_Data * sd = evas_object_smart_data_get(o)
#define ELM_SPINNER_DATA_GET_OR_RETURN(o, ptr) \
ELM_SPINNER_DATA_GET(o, ptr); \
if (!ptr) \
{ \
CRITICAL("No widget data for object %p (%s)", \
o, evas_object_type_get(o)); \
return; \
}
#define ELM_SPINNER_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
ELM_SPINNER_DATA_GET(o, ptr); \
if (!ptr) \
{ \
CRITICAL("No widget data for object %p (%s)", \
o, evas_object_type_get(o)); \
return val; \
}
#define ELM_SPINNER_CHECK(obj) \
if (!obj || !elm_widget_type_check((obj), SPINNER_SMART_NAME, \
__func__)) \
return
/* Inheriting from elm_layout. Besides, we need no more than what is
* there */
EVAS_SMART_SUBCLASS_NEW
(SPINNER_SMART_NAME, _elm_spinner, Elm_Layout_Smart_Class,
Elm_Layout_Smart_Class, elm_layout_smart_class_get, _smart_callbacks);
static void
_entry_show(Elm_Spinner_Smart_Data *sd)
{
char buf[32], fmt[32] = "%0.f";
/* try to construct just the format from given label
* completely ignoring pre/post words
*/
if (sd->label)
{
const char *start = strchr(sd->label, '%');
while (start)
{
/* handle %% */
if (start[1] != '%')
break;
else
start = strchr(start + 2, '%');
}
if (start)
{
const char *itr, *end = NULL;
for (itr = start + 1; *itr != '\0'; itr++)
{
/* allowing '%d' is quite dangerous, remove it? */
if ((*itr == 'd') || (*itr == 'f'))
{
end = itr + 1;
break;
}
}
if ((end) && ((size_t)(end - start + 1) < sizeof(fmt)))
{
memcpy(fmt, start, end - start);
fmt[end - start] = '\0';
}
}
}
snprintf(buf, sizeof(buf), fmt, sd->val);
elm_object_text_set(sd->ent, buf);
}
static void
_label_write(Evas_Object *obj)
{
Eina_List *l;
char buf[1024];
Elm_Spinner_Special_Value *sv;
ELM_SPINNER_DATA_GET(obj, sd);
EINA_LIST_FOREACH (sd->special_values, l, sv)
{
if (sv->value == sd->val)
{
snprintf(buf, sizeof(buf), "%s", sv->label);
goto apply;
}
}
if (sd->label)
snprintf(buf, sizeof(buf), sd->label, sd->val);
else
snprintf(buf, sizeof(buf), "%.0f", sd->val);
apply:
elm_layout_text_set(obj, "elm.text", buf);
if (sd->entry_visible) _entry_show(sd);
}
static Eina_Bool
_delay_change(void *data)
{
ELM_SPINNER_DATA_GET(data, sd);
sd->delay = NULL;
evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, NULL);
return ECORE_CALLBACK_CANCEL;
}
static Eina_Bool
_value_set(Evas_Object *obj,
double new_val)
{
ELM_SPINNER_DATA_GET(obj, sd);
if (sd->round > 0)
new_val = sd->val_base +
(double)((((int)(new_val - sd->val_base)) / sd->round) * sd->round);
if (sd->wrap)
{
while (new_val < sd->val_min)
new_val = sd->val_max + new_val + 1 - sd->val_min;
while (new_val > sd->val_max)
new_val = sd->val_min + new_val - sd->val_max - 1;
}
else
{
if (new_val < sd->val_min)
new_val = sd->val_min;
else if (new_val > sd->val_max)
new_val = sd->val_max;
}
if (new_val == sd->val) return EINA_FALSE;
sd->val = new_val;
evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
if (sd->delay) ecore_timer_del(sd->delay);
sd->delay = ecore_timer_add(0.2, _delay_change, obj);
return EINA_TRUE;
}
static void
_val_set(Evas_Object *obj)
{
double pos = 0.0;
ELM_SPINNER_DATA_GET(obj, sd);
if (sd->val_max > sd->val_min)
pos = ((sd->val - sd->val_min) / (sd->val_max - sd->val_min));
if (pos < 0.0) pos = 0.0;
else if (pos > 1.0)
pos = 1.0;
edje_object_part_drag_value_set
(ELM_WIDGET_DATA(sd)->resize_obj, "elm.dragable.slider", pos, pos);
}
static void
_drag_cb(void *data,
Evas_Object *_obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
double pos = 0.0, offset, delta;
Evas_Object *obj = data;
ELM_SPINNER_DATA_GET(obj, sd);
if (sd->entry_visible) return;
edje_object_part_drag_value_get
(ELM_WIDGET_DATA(sd)->resize_obj, "elm.dragable.slider", &pos, NULL);
offset = sd->step * _elm_config->scale;
delta = (pos - sd->drag_start_pos) * offset;
/* If we are on rtl mode, change the delta to be negative on such changes */
if (elm_widget_mirrored_get(obj)) delta *= -1;
if (_value_set(data, sd->drag_start_pos + delta)) _label_write(data);
sd->dragging = 1;
}
static void
_drag_start_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
double pos;
ELM_SPINNER_DATA_GET(data, sd);
edje_object_part_drag_value_get
(ELM_WIDGET_DATA(sd)->resize_obj, "elm.dragable.slider", &pos, NULL);
sd->drag_start_pos = pos;
}
static void
_drag_stop_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
ELM_SPINNER_DATA_GET(data, sd);
sd->drag_start_pos = 0;
edje_object_part_drag_value_set
(ELM_WIDGET_DATA(sd)->resize_obj, "elm.dragable.slider", 0.0, 0.0);
}
static void
_entry_hide(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
elm_layout_signal_emit(obj, "elm,state,inactive", "elm");
sd->entry_visible = EINA_FALSE;
}
static void
_reset_value(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
_entry_hide(obj);
elm_spinner_value_set(obj, sd->orig_val);
}
static void
_entry_value_apply(Evas_Object *obj)
{
const char *str;
double val;
char *end;
ELM_SPINNER_DATA_GET(obj, sd);
_entry_hide(obj);
str = elm_object_text_get(sd->ent);
if (!str) return;
val = strtod(str, &end);
if ((*end != '\0') && (!isspace(*end))) return;
elm_spinner_value_set(obj, val);
}
static void
_entry_toggle_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
ELM_SPINNER_DATA_GET(data, sd);
if (sd->dragging)
{
sd->dragging = 0;
return;
}
if (elm_widget_disabled_get(data)) return;
if (!sd->editable) return;
if (sd->entry_visible) _entry_value_apply(data);
else
{
sd->orig_val = sd->val;
elm_layout_signal_emit(data, "elm,state,active", "elm");
_entry_show(sd);
elm_entry_select_all(sd->ent);
elm_widget_focus_set(sd->ent, 1);
sd->entry_visible = EINA_TRUE;
}
}
static Eina_Bool
_spin_value(void *data)
{
ELM_SPINNER_DATA_GET(data, sd);
double real_speed = sd->spin_speed;
/* Sanity check: our step size should be at least as large as our rounding value */
if ((sd->spin_speed != 0.0) && (abs(sd->spin_speed) < sd->round))
{
WRN("The spinning step is smaller than the rounding value, please check your code");
real_speed = sd->spin_speed > 0 ? sd->round : -sd->round;
}
if (_value_set(data, sd->val + real_speed)) _label_write(data);
sd->interval = sd->interval / 1.05;
ecore_timer_interval_set(sd->spin, sd->interval);
return ECORE_CALLBACK_RENEW;
}
static void
_val_inc_start(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
sd->interval = sd->first_interval;
sd->spin_speed = sd->step;
if (sd->spin) ecore_timer_del(sd->spin);
sd->spin = ecore_timer_add(sd->interval, _spin_value, obj);
_spin_value(obj);
}
static void
_val_inc_stop(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
sd->interval = sd->first_interval;
sd->spin_speed = 0;
if (sd->spin) ecore_timer_del(sd->spin);
sd->spin = NULL;
}
static void
_val_dec_start(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
sd->interval = sd->first_interval;
sd->spin_speed = -sd->step;
if (sd->spin) ecore_timer_del(sd->spin);
sd->spin = ecore_timer_add(sd->interval, _spin_value, obj);
_spin_value(obj);
}
static void
_val_dec_stop(Evas_Object *obj)
{
ELM_SPINNER_DATA_GET(obj, sd);
sd->interval = sd->first_interval;
sd->spin_speed = 0;
if (sd->spin) ecore_timer_del(sd->spin);
sd->spin = NULL;
}
static void
_button_inc_start_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
ELM_SPINNER_DATA_GET(data, sd);
if (sd->entry_visible)
{
_reset_value(data);
return;
}
_val_inc_start(data);
}
static void
_button_inc_stop_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
_val_inc_stop(data);
}
static void
_button_dec_start_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
ELM_SPINNER_DATA_GET(data, sd);
if (sd->entry_visible)
{
_reset_value(data);
return;
}
_val_dec_start(data);
}
static void
_button_dec_stop_cb(void *data,
Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
_val_dec_stop(data);
}
static void
_entry_activated_cb(void *data,
Evas_Object *obj __UNUSED__,
void *event_info __UNUSED__)
{
ELM_SPINNER_DATA_GET(data, sd);
_entry_value_apply(data);
evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
if (sd->delay) ecore_timer_del(sd->delay);
sd->delay = ecore_timer_add(0.2, _delay_change, data);
}
static void
_elm_spinner_smart_sizing_eval(Evas_Object *obj)
{
Evas_Coord minw = -1, minh = -1;
ELM_SPINNER_DATA_GET(obj, sd);
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
edje_object_size_min_restricted_calc
(ELM_WIDGET_DATA(sd)->resize_obj, &minw, &minh, minw, minh);
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_size_hint_max_set(obj, -1, -1);
}
static Eina_Bool
_elm_spinner_smart_event(Evas_Object *obj,
Evas_Object *src __UNUSED__,
Evas_Callback_Type type,
void *event_info)
{
if (elm_widget_disabled_get(obj)) return EINA_FALSE;
if (type == EVAS_CALLBACK_KEY_DOWN)
{
Evas_Event_Key_Down *ev = event_info;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
else if (!strcmp(ev->keyname, "Left") ||
((!strcmp(ev->keyname, "KP_Left")) && (!ev->string)) ||
!strcmp(ev->keyname, "Down") ||
((!strcmp(ev->keyname, "KP_Down")) && (!ev->string)))
{
_val_dec_start(obj);
elm_layout_signal_emit(obj, "elm,left,anim,activate", "elm");
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
else if (!strcmp(ev->keyname, "Right") ||
((!strcmp(ev->keyname, "KP_Right")) && (!ev->string)) ||
!strcmp(ev->keyname, "Up") ||
((!strcmp(ev->keyname, "KP_Up")) && (!ev->string)))
{
_val_inc_start(obj);
elm_layout_signal_emit(obj, "elm,right,anim,activate", "elm");
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
}
else if (type == EVAS_CALLBACK_KEY_UP)
{
Evas_Event_Key_Down *ev = event_info;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
if (!strcmp(ev->keyname, "Right") ||
((!strcmp(ev->keyname, "KP_Right")) && (!ev->string)) ||
!strcmp(ev->keyname, "Up") ||
((!strcmp(ev->keyname, "KP_Up")) && (!ev->string)))
_val_inc_stop(obj);
else if (!strcmp(ev->keyname, "Left") ||
((!strcmp(ev->keyname, "KP_Left")) && (!ev->string)) ||
!strcmp(ev->keyname, "Down") ||
((!strcmp(ev->keyname, "KP_Down")) && (!ev->string)))
_val_dec_stop(obj);
else return EINA_FALSE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
return EINA_FALSE;
}
static void
_elm_spinner_smart_add(Evas_Object *obj)
{
EVAS_SMART_DATA_ALLOC(obj, Elm_Spinner_Smart_Data);
ELM_WIDGET_CLASS(_elm_spinner_parent_sc)->base.add(obj);
priv->val = 0.0;
priv->val_min = 0.0;
priv->val_max = 100.0;
priv->wrap = 0;
priv->step = 1.0;
priv->first_interval = 0.85;
priv->entry_visible = EINA_FALSE;
priv->editable = EINA_TRUE;
elm_layout_theme_set(obj, "spinner", "base", elm_widget_style_get(obj));
elm_layout_signal_callback_add(obj, "drag", "*", _drag_cb, obj);
elm_layout_signal_callback_add(obj, "drag,start", "*", _drag_start_cb, obj);
elm_layout_signal_callback_add(obj, "drag,stop", "*", _drag_stop_cb, obj);
elm_layout_signal_callback_add(obj, "drag,step", "*", _drag_stop_cb, obj);
elm_layout_signal_callback_add(obj, "drag,page", "*", _drag_stop_cb, obj);
elm_layout_signal_callback_add
(obj, "elm,action,increment,start", "*", _button_inc_start_cb, obj);
elm_layout_signal_callback_add
(obj, "elm,action,increment,stop", "*", _button_inc_stop_cb, obj);
elm_layout_signal_callback_add
(obj, "elm,action,decrement,start", "*", _button_dec_start_cb, obj);
elm_layout_signal_callback_add
(obj, "elm,action,decrement,stop", "*", _button_dec_stop_cb, obj);
edje_object_part_drag_value_set
(ELM_WIDGET_DATA(priv)->resize_obj, "elm.dragable.slider", 0.0, 0.0);
priv->ent = elm_entry_add(obj);
elm_entry_single_line_set(priv->ent, EINA_TRUE);
evas_object_smart_callback_add
(priv->ent, "activated", _entry_activated_cb, obj);
elm_layout_content_set(obj, "elm.swallow.entry", priv->ent);
elm_layout_signal_callback_add
(obj, "elm,action,entry,toggle", "*", _entry_toggle_cb, obj);
_label_write(obj);
elm_widget_can_focus_set(obj, EINA_TRUE);
elm_layout_sizing_eval(obj);
}
static void
_elm_spinner_smart_del(Evas_Object *obj)
{
Elm_Spinner_Special_Value *sv;
ELM_SPINNER_DATA_GET(obj, sd);
if (sd->label) eina_stringshare_del(sd->label);
if (sd->delay) ecore_timer_del(sd->delay);
if (sd->spin) ecore_timer_del(sd->spin);
if (sd->special_values)
{
EINA_LIST_FREE (sd->special_values, sv)
{
eina_stringshare_del(sv->label);
free(sv);
}
}
ELM_WIDGET_CLASS(_elm_spinner_parent_sc)->base.del(obj);
}
static void
_elm_spinner_smart_set_user(Elm_Layout_Smart_Class *sc)
{
ELM_WIDGET_CLASS(sc)->base.add = _elm_spinner_smart_add;
ELM_WIDGET_CLASS(sc)->base.del = _elm_spinner_smart_del;
ELM_WIDGET_CLASS(sc)->focus_next = NULL; /* not 'focus chain manager' */
ELM_WIDGET_CLASS(sc)->event = _elm_spinner_smart_event;
sc->sizing_eval = _elm_spinner_smart_sizing_eval;
}
EAPI Evas_Object *
elm_spinner_add(Evas_Object *parent)
{
Evas_Object *obj;
EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
obj = elm_widget_add(_elm_spinner_smart_class_new(), parent);
if (!obj) return NULL;
if (!elm_widget_sub_object_add(parent, obj))
ERR("could not add %p as sub object of %p", obj, parent);
return obj;
}
EAPI void
elm_spinner_label_format_set(Evas_Object *obj,
const char *fmt)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
eina_stringshare_replace(&sd->label, fmt);
_label_write(obj);
elm_layout_sizing_eval(obj);
}
EAPI const char *
elm_spinner_label_format_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) NULL;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->label;
}
EAPI void
elm_spinner_min_max_set(Evas_Object *obj,
double min,
double max)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
if ((sd->val_min == min) && (sd->val_max == max)) return;
sd->val_min = min;
sd->val_max = max;
if (sd->val < sd->val_min) sd->val = sd->val_min;
if (sd->val > sd->val_max) sd->val = sd->val_max;
_val_set(obj);
_label_write(obj);
}
EAPI void
elm_spinner_min_max_get(const Evas_Object *obj,
double *min,
double *max)
{
if (min) *min = 0.0;
if (max) *max = 0.0;
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
if (min) *min = sd->val_min;
if (max) *max = sd->val_max;
}
EAPI void
elm_spinner_step_set(Evas_Object *obj,
double step)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->step = step;
}
EAPI double
elm_spinner_step_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) 0.0;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->step;
}
EAPI void
elm_spinner_value_set(Evas_Object *obj,
double val)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
if (sd->val == val) return;
sd->val = val;
if (sd->val < sd->val_min) sd->val = sd->val_min;
if (sd->val > sd->val_max) sd->val = sd->val_max;
_val_set(obj);
_label_write(obj);
}
EAPI double
elm_spinner_value_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) 0.0;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->val;
}
EAPI void
elm_spinner_wrap_set(Evas_Object *obj,
Eina_Bool wrap)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->wrap = wrap;
}
EAPI Eina_Bool
elm_spinner_wrap_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) EINA_FALSE;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->wrap;
}
EAPI void
elm_spinner_special_value_add(Evas_Object *obj,
double value,
const char *label)
{
Elm_Spinner_Special_Value *sv;
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sv = calloc(1, sizeof(*sv));
if (!sv) return;
sv->value = value;
sv->label = eina_stringshare_add(label);
sd->special_values = eina_list_append(sd->special_values, sv);
_label_write(obj);
}
EAPI void
elm_spinner_editable_set(Evas_Object *obj,
Eina_Bool editable)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->editable = editable;
}
EAPI Eina_Bool
elm_spinner_editable_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) EINA_FALSE;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->editable;
}
EAPI void
elm_spinner_interval_set(Evas_Object *obj,
double interval)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->first_interval = interval;
}
EAPI double
elm_spinner_interval_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) 0.0;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->first_interval;
}
EAPI void
elm_spinner_base_set(Evas_Object *obj,
double base)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->val_base = base;
}
EAPI double
elm_spinner_base_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) 0.0;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->val_base;
}
EAPI void
elm_spinner_round_set(Evas_Object *obj,
int rnd)
{
ELM_SPINNER_CHECK(obj);
ELM_SPINNER_DATA_GET(obj, sd);
sd->round = rnd;
}
EAPI int
elm_spinner_round_get(const Evas_Object *obj)
{
ELM_SPINNER_CHECK(obj) 0;
ELM_SPINNER_DATA_GET(obj, sd);
return sd->round;
}