288 lines
6.8 KiB
C
288 lines
6.8 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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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 _Widget_Data Widget_Data;
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typedef struct Segment Segment;
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struct _Widget_Data
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{
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Evas_Object *obj;
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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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static const char *widtype = NULL;
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static void _del_hook(Evas_Object *obj);
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static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
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static void _theme_hook(Evas_Object *obj);
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static void _sizing_eval(Evas_Object *obj);
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static void _clear_route(Evas_Object *obj);
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#ifdef ELM_EMAP
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static void _update_lon_lat_min_max(Evas_Object *obj, double lon, double lat);
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#endif
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static void
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_del_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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_clear_route(obj);
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free(wd);
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}
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static void
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_resize_cb(void *data __UNUSED__ , Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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_sizing_eval(obj);
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}
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static void
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_mirrored_set(Evas_Object *obj, Eina_Bool rtl __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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}
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static void
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_theme_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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//TODO
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_sizing_eval(obj);
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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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Widget_Data *wd = elm_widget_data_get(obj);
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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EINA_LIST_FOREACH(wd->segments, l, segment)
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{
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if (wd->must_calc_segments || segment->must_calc)
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{
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#ifdef ELM_EMAP
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segment->start_x = (emap_route_node_lon_get(segment->node_start)- wd->lon_min) / (float)(wd->lon_max - wd->lon_min);
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segment->start_y = 1 - (emap_route_node_lat_get(segment->node_start) - wd->lat_min) / (float)(wd->lat_max - wd->lat_min);
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segment->end_x = (emap_route_node_lon_get(segment->node_end) - wd->lon_min) / (float)(wd->lon_max - wd->lon_min);
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segment->end_y = 1 - (emap_route_node_lat_get(segment->node_end) - wd->lat_min) / (float)(wd->lat_max - wd->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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wd->must_calc_segments = EINA_FALSE;
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}
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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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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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#ifdef ELM_EMAP
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wd->lon_min = EMAP_LON_MAX;
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wd->lon_max = EMAP_LON_MIN;
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wd->lat_min = EMAP_LAT_MAX;
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wd->lat_max = EMAP_LAT_MIN;
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#endif
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EINA_LIST_FREE(wd->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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#ifdef ELM_EMAP
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static void
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_update_lon_lat_min_max(Evas_Object *obj, double lon, double lat)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (wd->lon_min > lon)
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{
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wd->lon_min = lon;
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wd->must_calc_segments = EINA_TRUE;
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}
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if (wd->lat_min > lat)
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{
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wd->lat_min = lat;
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wd->must_calc_segments = EINA_TRUE;
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}
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if (wd->lon_max < lon)
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{
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wd->lon_max = lon;
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wd->must_calc_segments = EINA_TRUE;
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}
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if (wd->lat_max < lat)
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{
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wd->lat_max = lat;
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wd->must_calc_segments = EINA_TRUE;
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}
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}
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#endif
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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_Object *obj;
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Evas *e;
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Widget_Data *wd;
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ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
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ELM_SET_WIDTYPE(widtype, "map_route");
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elm_widget_type_set(obj, "map_route");
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elm_widget_sub_object_add(parent, obj);
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elm_widget_data_set(obj, wd);
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elm_widget_del_hook_set(obj, _del_hook);
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elm_widget_theme_hook_set(obj, _theme_hook);
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elm_widget_can_focus_set(obj, EINA_FALSE);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE,
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_resize_cb, obj);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE,
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_resize_cb, obj);
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#ifdef ELM_EMAP
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wd->lon_min = EMAP_LON_MAX;
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wd->lon_max = EMAP_LON_MIN;
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wd->lat_min = EMAP_LAT_MAX;
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wd->lat_max = EMAP_LAT_MIN;
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#endif
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_mirrored_set(obj, elm_widget_mirrored_get(obj));
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_sizing_eval(obj);
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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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* @return (1 = success, 0 = error)
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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, 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_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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wd->emap = emap;
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_clear_route(obj);
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EINA_LIST_FOREACH(emap_route_nodes_get(wd->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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evas_object_show(o);
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segment->must_calc = EINA_TRUE;
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_update_lon_lat_min_max(obj, emap_route_node_lon_get(node_prev), emap_route_node_lat_get(node_prev));
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_update_lon_lat_min_max(obj, emap_route_node_lon_get(node), emap_route_node_lat_get(node));
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wd->segments = eina_list_append(wd->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, double *min, double *max)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (min) *min = wd->lon_min;
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if (max) *max = wd->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, double *min, double *max)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (min) *min = wd->lat_min;
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if (max) *max = wd->lat_max;
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}
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/* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-3f0^-2{2(0W1st0 :*/
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