343 lines
8.0 KiB
C
343 lines
8.0 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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static const char ROUTE_SMART_NAME[] = "elm_route";
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/**
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* @defgroup Route MapRoute
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*
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* For displaying a route on the map widget
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*
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*/
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typedef struct _Elm_Route_Smart_Data Elm_Route_Smart_Data;
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typedef struct Segment Segment;
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struct _Elm_Route_Smart_Data
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{
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Elm_Widget_Smart_Data base;
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#ifdef ELM_EMAP
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EMap_Route *emap;
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#endif
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double lon_min, lon_max;
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double lat_min, lat_max;
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Eina_List *segments; //list of *Segment
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Eina_Bool must_calc_segments : 1;
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};
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struct Segment
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{
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Evas_Object *obj;
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#ifdef ELM_EMAP
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EMap_Route_Node *node_start;
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EMap_Route_Node *node_end;
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#endif
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double start_x, start_y;
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double end_x, end_y;
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Eina_Bool must_calc : 1;
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};
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#define ELM_ROUTE_DATA_GET(o, sd) \
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Elm_Route_Smart_Data * sd = evas_object_smart_data_get(o)
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#define ELM_ROUTE_DATA_GET_OR_RETURN(o, ptr) \
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ELM_ROUTE_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRITICAL("No widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return; \
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}
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#define ELM_ROUTE_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
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ELM_ROUTE_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRITICAL("No widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return val; \
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}
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#define ELM_ROUTE_CHECK(obj) \
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if (!obj || !elm_widget_type_check((obj), ROUTE_SMART_NAME, __func__)) \
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return
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EVAS_SMART_SUBCLASS_NEW
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(ROUTE_SMART_NAME, _elm_route, Elm_Widget_Smart_Class,
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Elm_Widget_Smart_Class, elm_widget_smart_class_get, NULL);
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static void
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_clear_route(Evas_Object *obj)
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{
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Segment *segment;
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ELM_ROUTE_DATA_GET(obj, sd);
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#ifdef ELM_EMAP
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sd->lon_min = EMAP_LON_MAX;
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sd->lon_max = EMAP_LON_MIN;
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sd->lat_min = EMAP_LAT_MAX;
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sd->lat_max = EMAP_LAT_MIN;
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#endif
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EINA_LIST_FREE (sd->segments, segment)
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{
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evas_object_del(segment->obj);
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free(segment);
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}
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}
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static void
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_sizing_eval(Evas_Object *obj)
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{
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Eina_List *l;
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Segment *segment;
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Evas_Coord x, y, w, h;
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Evas_Coord start_x, start_y, end_x, end_y;
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ELM_ROUTE_DATA_GET(obj, sd);
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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EINA_LIST_FOREACH (sd->segments, l, segment)
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{
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if (sd->must_calc_segments || segment->must_calc)
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{
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#ifdef ELM_EMAP
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segment->start_x =
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(emap_route_node_lon_get(segment->node_start) - sd->lon_min)
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/ (float)(sd->lon_max - sd->lon_min);
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segment->start_y =
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1 - (emap_route_node_lat_get(segment->node_start)
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- sd->lat_min) / (float)(sd->lat_max - sd->lat_min);
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segment->end_x =
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(emap_route_node_lon_get(segment->node_end) - sd->lon_min)
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/ (float)(sd->lon_max - sd->lon_min);
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segment->end_y =
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1 - (emap_route_node_lat_get(segment->node_end)
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- sd->lat_min) / (float)(sd->lat_max - sd->lat_min);
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#endif
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segment->must_calc = EINA_FALSE;
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}
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start_x = x + (int)(segment->start_x * w);
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start_y = y + (int)(segment->start_y * h);
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end_x = x + (int)(segment->end_x * w);
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end_y = y + (int)(segment->end_y * h);
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evas_object_line_xy_set(segment->obj, start_x, start_y, end_x, end_y);
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}
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sd->must_calc_segments = EINA_FALSE;
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}
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static void
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_move_resize_cb(void *data __UNUSED__,
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Evas *e __UNUSED__,
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Evas_Object *obj,
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void *event_info __UNUSED__)
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{
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_sizing_eval(obj);
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}
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static Eina_Bool
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_elm_route_smart_theme(Evas_Object *obj)
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{
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if (!_elm_route_parent_sc->theme(obj)) return EINA_FALSE;
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//TODO
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_sizing_eval(obj);
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return EINA_TRUE;
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}
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#ifdef ELM_EMAP
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static void
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_update_lon_lat_min_max(Evas_Object *obj,
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double lon,
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double lat)
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{
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ELM_ROUTE_DATA_GET(obj, sd);
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if (sd->lon_min > lon)
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{
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sd->lon_min = lon;
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sd->must_calc_segments = EINA_TRUE;
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}
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if (sd->lat_min > lat)
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{
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sd->lat_min = lat;
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sd->must_calc_segments = EINA_TRUE;
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}
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if (sd->lon_max < lon)
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{
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sd->lon_max = lon;
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sd->must_calc_segments = EINA_TRUE;
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}
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if (sd->lat_max < lat)
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{
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sd->lat_max = lat;
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sd->must_calc_segments = EINA_TRUE;
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}
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}
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#endif
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static void
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_elm_route_smart_add(Evas_Object *obj)
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{
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EVAS_SMART_DATA_ALLOC(obj, Elm_Route_Smart_Data);
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_elm_route_parent_sc->base.add(obj);
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elm_widget_can_focus_set(obj, EINA_FALSE);
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evas_object_event_callback_add
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(obj, EVAS_CALLBACK_MOVE, _move_resize_cb, obj);
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evas_object_event_callback_add
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(obj, EVAS_CALLBACK_RESIZE, _move_resize_cb, obj);
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#ifdef ELM_EMAP
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priv->lon_min = EMAP_LON_MAX;
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priv->lon_max = EMAP_LON_MIN;
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priv->lat_min = EMAP_LAT_MAX;
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priv->lat_max = EMAP_LAT_MIN;
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#endif
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_sizing_eval(obj);
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}
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static void
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_elm_route_smart_del(Evas_Object *obj)
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{
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_clear_route(obj);
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ELM_WIDGET_CLASS(_elm_route_parent_sc)->base.del(obj);
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}
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static void
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_elm_route_smart_set_user(Elm_Widget_Smart_Class *sc)
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{
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sc->base.add = _elm_route_smart_add;
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sc->base.del = _elm_route_smart_del;
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sc->theme = _elm_route_smart_theme;
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}
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/**
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* Add a new route to the parent
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*
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* @param parent The parent object
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* @return The new object or NULL if it cannot be created
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*
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* @ingroup Route
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*/
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EAPI Evas_Object *
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elm_route_add(Evas_Object *parent)
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{
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Evas *e;
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Evas_Object *obj;
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EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
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e = evas_object_evas_get(parent);
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if (!e) return NULL;
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obj = evas_object_smart_add(e, _elm_route_smart_class_new());
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if (!elm_widget_sub_object_add(parent, obj))
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ERR("could not add %p as sub object of %p", obj, parent);
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return obj;
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}
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#ifdef ELM_EMAP
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/**
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* Set the emap object which describes the route
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*
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* @param obj The photo object
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* @param emap the route
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*
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* @ingroup Route
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*/
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EAPI void
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elm_route_emap_set(Evas_Object *obj,
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EMap_Route *emap)
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{
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EMap_Route_Node *node, *node_prev = NULL;
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Evas_Object *o;
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Eina_List *l;
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ELM_ROUTE_CHECK(obj);
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ELM_ROUTE_DATA_GET(obj, sd);
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sd->emap = emap;
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_clear_route(obj);
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EINA_LIST_FOREACH (emap_route_nodes_get(sd->emap), l, node)
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{
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if (node_prev)
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{
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Segment *segment = calloc(1, sizeof(Segment));
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segment->node_start = node_prev;
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segment->node_end = node;
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o = evas_object_line_add(evas_object_evas_get(obj));
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segment->obj = o;
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evas_object_smart_member_add(o, obj);
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segment->must_calc = EINA_TRUE;
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_update_lon_lat_min_max
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(obj, emap_route_node_lon_get(node_prev),
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emap_route_node_lat_get(node_prev));
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_update_lon_lat_min_max
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(obj, emap_route_node_lon_get(node),
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emap_route_node_lat_get(node));
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sd->segments = eina_list_append(sd->segments, segment);
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}
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node_prev = node;
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}
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_sizing_eval(obj);
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}
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#endif
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EAPI void
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elm_route_longitude_min_max_get(const Evas_Object *obj,
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double *min,
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double *max)
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{
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ELM_ROUTE_CHECK(obj);
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ELM_ROUTE_DATA_GET(obj, sd);
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if (min) *min = sd->lon_min;
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if (max) *max = sd->lon_max;
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}
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EAPI void
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elm_route_latitude_min_max_get(const Evas_Object *obj,
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double *min,
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double *max)
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{
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ELM_ROUTE_CHECK(obj);
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ELM_ROUTE_DATA_GET(obj, sd);
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if (min) *min = sd->lat_min;
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if (max) *max = sd->lat_max;
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}
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