554 lines
14 KiB
C
554 lines
14 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#define _XOPEN_SOURCE 600
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#include "e.h"
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#include <math.h>
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#define SMART_NAME "e_slider"
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#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)))
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#define INTERNAL_ENTRY E_Smart_Data *sd; sd = evas_object_smart_data_get(obj); if (!sd) return;
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typedef struct _E_Smart_Data E_Smart_Data;
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struct _E_Smart_Data
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{
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Evas_Coord x, y, w, h;
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Evas_Object *smart_obj;
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Evas_Object *edje_obj;
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double val, val_min, val_max, step_size;
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int reversed, step_count, horizontal;
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int direction;
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const char *format;
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Evas_Coord minw, minh;
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Ecore_Timer *set_timer;
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};
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/* local subsystem functions */
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static int _e_smart_set_timer(void *data);
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static void _e_smart_value_update(E_Smart_Data *sd);
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static void _e_smart_value_update_now(E_Smart_Data *sd);
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static void _e_smart_value_fetch(E_Smart_Data *sd);
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static void _e_smart_value_limit(E_Smart_Data *sd);
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static void _e_smart_format_update(E_Smart_Data *sd);
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static void _e_smart_signal_cb_drag(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _e_smart_signal_cb_drag_start(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _e_smart_signal_cb_drag_stop(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _e_smart_event_key_down(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _e_smart_reconfigure(E_Smart_Data *sd);
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static void _e_smart_add(Evas_Object *obj);
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static void _e_smart_del(Evas_Object *obj);
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static void _e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
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static void _e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
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static void _e_smart_show(Evas_Object *obj);
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static void _e_smart_hide(Evas_Object *obj);
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static void _e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
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static void _e_smart_clip_set(Evas_Object *obj, Evas_Object * clip);
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static void _e_smart_clip_unset(Evas_Object *obj);
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static void _e_smart_init(void);
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/* local subsystem globals */
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static Evas_Smart *_e_smart = NULL;
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/* externally accessible functions */
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EAPI Evas_Object *
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e_slider_add(Evas *evas)
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{
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_e_smart_init();
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return evas_object_smart_add(evas, _e_smart);
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}
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EAPI void
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e_slider_orientation_set(Evas_Object *obj, int horizontal)
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{
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API_ENTRY return;
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if (sd->horizontal == horizontal) return;
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sd->horizontal = horizontal;
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if (sd->horizontal)
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e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
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"e/widgets/slider_horizontal");
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else
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e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
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"e/widgets/slider_vertical");
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edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
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_e_smart_value_update(sd);
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}
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EAPI int
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e_slider_orientation_get(Evas_Object *obj)
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{
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API_ENTRY return 0;
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return sd->horizontal;
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}
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EAPI void
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e_slider_value_set(Evas_Object *obj, double val)
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{
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API_ENTRY return;
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sd->val = val;
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_e_smart_value_update_now(sd);
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}
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EAPI double
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e_slider_value_get(Evas_Object *obj)
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{
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API_ENTRY return 0.0;
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return sd->val;
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}
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EAPI void
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e_slider_value_range_set(Evas_Object *obj, double min, double max)
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{
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API_ENTRY return;
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sd->val_min = min;
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sd->val_max = max;
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if (sd->val_max < sd->val_min) sd->val_min = sd->val_max;
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sd->direction = 0;
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_e_smart_value_limit(sd);
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_e_smart_value_update_now(sd);
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}
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EAPI void
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e_slider_value_range_get(Evas_Object *obj, double *min, double *max)
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{
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API_ENTRY return;
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if (min) *min = sd->val_min;
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if (max) *max = sd->val_max;
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}
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EAPI void
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e_slider_value_step_size_set(Evas_Object *obj, double step_size)
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{
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double step;
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API_ENTRY return;
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if (step_size < 0.0) step_size = 0.0;
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sd->step_size = step_size;
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step = 0.0;
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if (sd->val_max > sd->val_min)
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step = step_size / (sd->val_max - sd->val_min);
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edje_object_part_drag_step_set(sd->edje_obj, "e.dragable.slider", step, step);
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sd->direction = 0;
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_e_smart_value_limit(sd);
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_e_smart_value_update_now(sd);
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}
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EAPI double
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e_slider_value_step_size_get(Evas_Object *obj)
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{
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API_ENTRY return 0.0;
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return sd->step_size;
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}
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EAPI void
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e_slider_value_step_count_set(Evas_Object *obj, int step_count)
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{
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API_ENTRY return;
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sd->step_count = step_count;
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sd->direction = 0;
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_e_smart_value_limit(sd);
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_e_smart_value_update_now(sd);
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}
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EAPI int
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e_slider_value_step_count_get(Evas_Object *obj)
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{
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API_ENTRY return 0;
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return sd->step_count;
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}
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EAPI void
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e_slider_value_format_display_set(Evas_Object *obj, const char *format)
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{
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int changed = 0;
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API_ENTRY return;
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if (((sd->format) && (!format)) || ((!sd->format) && (format))) changed = 1;
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if (sd->format) eina_stringshare_del(sd->format);
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sd->format = NULL;
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if (format) sd->format = eina_stringshare_add(format);
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if (changed)
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{
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if (sd->format)
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edje_object_signal_emit(sd->edje_obj, "e,action,show,label", "e");
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else
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edje_object_signal_emit(sd->edje_obj, "e,action,hide,label", "e");
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}
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_e_smart_format_update(sd);
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edje_object_message_signal_process(sd->edje_obj);
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edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
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}
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EAPI const char *
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e_slider_value_format_display_get(Evas_Object *obj)
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{
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API_ENTRY return NULL;
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return sd->format;
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}
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EAPI void
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e_slider_direction_set(Evas_Object *obj, int reversed)
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{
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API_ENTRY return;
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sd->reversed = reversed;
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_e_smart_value_update_now(sd);
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}
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EAPI int
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e_slider_direction_get(Evas_Object *obj)
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{
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API_ENTRY return 0;
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return sd->reversed;
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}
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EAPI void
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e_slider_size_min_get(Evas_Object *obj, Evas_Coord *minw, Evas_Coord *minh)
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{
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API_ENTRY return;
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if (minw) *minw = sd->minw;
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if (minh) *minh = sd->minh;
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}
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EAPI Evas_Object *
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e_slider_edje_object_get(Evas_Object *obj)
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{
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API_ENTRY return NULL;
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return sd->edje_obj;
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}
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/* local subsystem functions */
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static int
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_e_smart_set_timer(void *data)
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{
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E_Smart_Data *sd;
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double pos = 0.0;
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sd = data;
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if (sd->val_max > sd->val_min)
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pos = (sd->val - sd->val_min) / (sd->val_max - sd->val_min);
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if (pos < 0.0) pos = 0.0;
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else if (pos > 1.0) pos = 1.0;
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if (sd->reversed) pos = 1.0 - pos;
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edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", pos, pos);
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sd->set_timer = NULL;
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return 0;
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}
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static void
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_e_smart_value_update(E_Smart_Data *sd)
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{
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if (sd->set_timer) ecore_timer_del(sd->set_timer);
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sd->set_timer = ecore_timer_add(0.05, _e_smart_set_timer, sd);
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}
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static void
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_e_smart_value_update_now(E_Smart_Data *sd)
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{
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if (sd->set_timer) ecore_timer_del(sd->set_timer);
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_e_smart_set_timer(sd);
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}
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static void
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_e_smart_value_fetch(E_Smart_Data *sd)
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{
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double posx = 0.0, posy = 0.0, pos = 0.0;
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edje_object_part_drag_value_get(sd->edje_obj, "e.dragable.slider", &posx, &posy);
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if (sd->horizontal) pos = posx;
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else pos = posy;
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sd->val = (pos * (sd->val_max - sd->val_min)) + sd->val_min;
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}
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static void
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_e_smart_value_limit(E_Smart_Data *sd)
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{
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if (sd->val < sd->val_min) sd->val = sd->val_min;
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if (sd->val > sd->val_max) sd->val = sd->val_max;
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if (sd->val_max > sd->val_min)
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{
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if (sd->step_count > 0)
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{
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double p, s;
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s = (sd->val_max - sd->val_min) / sd->step_count;
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p = sd->val / s;
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if (sd->direction == 1)
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p = ceil(p);
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else if (sd->direction == -1)
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p = floor(p);
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else
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p = round(p);
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sd->val = p * s;
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}
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else if (sd->step_size > 0.0)
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{
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double p;
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p = sd->val / sd->step_size;
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if (sd->direction == 1)
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p = ceil(p);
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else if (sd->direction == -1)
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p = floor(p);
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else
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p = round(p);
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sd->val = p * sd->step_size;
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}
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}
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sd->direction = 0;
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}
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static void
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_e_smart_format_update(E_Smart_Data *sd)
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{
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if (sd->format)
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{
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char buf[256];
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snprintf(buf, sizeof(buf), sd->format, sd->val);
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edje_object_part_text_set(sd->edje_obj, "e.text.label", buf);
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}
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}
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static void
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_e_smart_signal_cb_drag(void *data, Evas_Object *obj, const char *emission, const char *source)
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{
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E_Smart_Data *sd;
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double pval;
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sd = data;
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pval = sd->val;
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_e_smart_value_fetch(sd);
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_e_smart_value_limit(sd);
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_e_smart_format_update(sd);
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if (sd->val != pval)
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evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
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}
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static void
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_e_smart_signal_cb_drag_start(void *data, Evas_Object *obj, const char *emission, const char *source)
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{
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E_Smart_Data *sd;
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double pval;
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sd = data;
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pval = sd->val;
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_e_smart_value_fetch(sd);
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_e_smart_value_limit(sd);
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_e_smart_format_update(sd);
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if (sd->val != pval)
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evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
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}
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static void
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_e_smart_signal_cb_drag_stop(void *data, Evas_Object *obj, const char *emission, const char *source)
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{
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E_Smart_Data *sd;
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double pval;
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sd = data;
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pval = sd->val;
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_e_smart_value_fetch(sd);
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_e_smart_value_limit(sd);
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_e_smart_format_update(sd);
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_e_smart_value_update(sd);
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if (sd->val != pval)
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evas_object_smart_callback_call(sd->smart_obj, "changed", NULL);
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}
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static void
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_e_smart_event_key_down(void *data, Evas *e, Evas_Object *obj, void *event_info)
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{
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Evas_Event_Key_Down *ev;
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E_Smart_Data *sd;
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sd = data;
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ev = event_info;
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if ((!strcmp(ev->keyname, "Up")) ||
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(!strcmp(ev->keyname, "KP_Up")) ||
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(!strcmp(ev->keyname, "Left")) ||
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(!strcmp(ev->keyname, "KP_Left")))
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{
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if (sd->step_count > 0)
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{
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double s;
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s = (sd->val_max - sd->val_min) / sd->step_count;
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edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", -s, -s);
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}
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else
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edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", -sd->step_size, -sd->step_size);
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sd->direction = -1;
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}
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else if ((!strcmp(ev->keyname, "Down")) ||
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(!strcmp(ev->keyname, "KP_Down")) ||
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(!strcmp(ev->keyname, "Right")) ||
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(!strcmp(ev->keyname, "KP_Right")))
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{
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if (sd->step_count > 0)
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{
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double s;
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s = (sd->val_max - sd->val_min) / sd->step_count;
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edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", s, s);
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}
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else
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edje_object_part_drag_step(sd->edje_obj, "e.dragable.slider", sd->step_size, sd->step_size);
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sd->direction = 1;
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}
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else if ((!strcmp(ev->keyname, "Home")) ||
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(!strcmp(ev->keyname, "KP_Home")))
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{
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edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", 0., 0.);
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sd->direction = 0;
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}
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else if ((!strcmp(ev->keyname, "End")) ||
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(!strcmp(ev->keyname, "KP_End")))
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{
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edje_object_part_drag_value_set(sd->edje_obj, "e.dragable.slider", 1., 1.);
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sd->direction = 0;
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}
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}
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static void
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_e_smart_reconfigure(E_Smart_Data *sd)
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{
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evas_object_move(sd->edje_obj, sd->x, sd->y);
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evas_object_resize(sd->edje_obj, sd->w, sd->h);
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}
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static void
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_e_smart_add(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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sd = calloc(1, sizeof(E_Smart_Data));
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if (!sd) return;
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evas_object_smart_data_set(obj, sd);
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sd->smart_obj = obj;
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sd->x = 0;
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sd->y = 0;
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sd->w = 0;
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sd->h = 0;
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sd->val = 0.0;
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sd->val_min = 0.0;
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sd->val_max = 1.0;
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sd->step_size = 0.01;
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sd->reversed = 0;
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sd->step_count = 0;
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sd->horizontal = 0;
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sd->format = NULL;
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sd->direction = 0;
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sd->edje_obj = edje_object_add(evas_object_evas_get(obj));
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e_theme_edje_object_set(sd->edje_obj, "base/theme/widgets",
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"e/widgets/slider_vertical");
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edje_object_size_min_calc(sd->edje_obj, &(sd->minw), &(sd->minh));
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evas_object_smart_member_add(sd->edje_obj, obj);
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edje_object_signal_callback_add(sd->edje_obj, "drag", "*", _e_smart_signal_cb_drag, sd);
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edje_object_signal_callback_add(sd->edje_obj, "drag,start", "*", _e_smart_signal_cb_drag_start, sd);
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edje_object_signal_callback_add(sd->edje_obj, "drag,stop", "*", _e_smart_signal_cb_drag_stop, sd);
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edje_object_signal_callback_add(sd->edje_obj, "drag,step", "*", _e_smart_signal_cb_drag_stop, sd);
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edje_object_signal_callback_add(sd->edje_obj, "drag,set", "*", _e_smart_signal_cb_drag_stop, sd);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_DOWN, _e_smart_event_key_down, sd);
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}
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static void
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_e_smart_del(Evas_Object *obj)
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{
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INTERNAL_ENTRY;
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evas_object_del(sd->edje_obj);
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if (sd->format) eina_stringshare_del(sd->format);
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if (sd->set_timer) ecore_timer_del(sd->set_timer);
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free(sd);
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}
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static void
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_e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
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{
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INTERNAL_ENTRY;
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if ((sd->x == x) && (sd->y == y)) return;
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sd->x = x;
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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 const Evas_Smart_Class sc =
|
|
{
|
|
SMART_NAME,
|
|
EVAS_SMART_CLASS_VERSION,
|
|
_e_smart_add,
|
|
_e_smart_del,
|
|
_e_smart_move,
|
|
_e_smart_resize,
|
|
_e_smart_show,
|
|
_e_smart_hide,
|
|
_e_smart_color_set,
|
|
_e_smart_clip_set,
|
|
_e_smart_clip_unset,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
_e_smart = evas_smart_class_new(&sc);
|
|
}
|
|
}
|
|
|