2008-10-06 23:55:11 -07:00
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#include <Elementary.h>
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#include "elm_priv.h"
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2009-09-17 15:39:18 -07:00
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/**
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* @defgroup Layout Layout
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*
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* This takes a standard Edje design file and wraps it very thinly
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* in a widget and handles swallowing widgets into swallow regions
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* in the Edje object, allowing Edje to be used as a design and
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* layout tool
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*/
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2008-10-06 23:55:11 -07:00
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typedef struct _Widget_Data Widget_Data;
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2009-09-26 12:18:36 -07:00
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typedef struct _Subinfo Subinfo;
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2008-10-06 23:55:11 -07:00
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struct _Widget_Data
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{
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Evas_Object *lay;
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2008-10-22 07:11:59 -07:00
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Eina_List *subs;
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2009-11-17 08:32:45 -08:00
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Eina_Bool needs_size_calc:1;
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2008-10-06 23:55:11 -07:00
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};
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struct _Subinfo
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{
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const char *swallow;
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Evas_Object *obj;
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};
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2010-03-08 22:15:39 -08:00
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static const char *widtype = NULL;
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2008-10-06 23:55:11 -07:00
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static void _del_hook(Evas_Object *obj);
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2008-11-15 05:58:50 -08:00
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static void _theme_hook(Evas_Object *obj);
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2008-10-06 23:55:11 -07:00
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static void _sizing_eval(Evas_Object *obj);
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static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _sub_del(void *data, Evas_Object *obj, void *event_info);
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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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Subinfo *si;
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-02-25 12:18:38 -08:00
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EINA_LIST_FREE(wd->subs, si)
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2008-10-06 23:55:11 -07:00
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{
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2009-06-09 08:29:41 -07:00
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eina_stringshare_del(si->swallow);
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2008-10-06 23:55:11 -07:00
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free(si);
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}
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free(wd);
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}
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2008-11-15 05:58:50 -08:00
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static void
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_theme_hook(Evas_Object *obj)
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{
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2009-02-02 21:09:03 -08:00
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-10-22 15:10:23 -07:00
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edje_object_scale_set(wd->lay, elm_widget_scale_get(obj) *
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2009-09-26 12:18:36 -07:00
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_elm_config->scale);
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2008-11-15 05:58:50 -08:00
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_sizing_eval(obj);
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}
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2009-11-17 08:32:45 -08:00
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static void
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_changed_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-11-17 08:32:45 -08:00
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if (wd->needs_size_calc)
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{
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_sizing_eval(obj);
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wd->needs_size_calc = 0;
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}
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}
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2008-10-06 23:55:11 -07:00
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static void
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_sizing_eval(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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2009-11-09 04:42:35 -08:00
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Evas_Coord minw = -1, minh = -1;
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2008-10-06 23:55:11 -07:00
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edje_object_size_min_calc(wd->lay, &minw, &minh);
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evas_object_size_hint_min_set(obj, minw, minh);
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2009-11-09 04:42:35 -08:00
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evas_object_size_hint_max_set(obj, -1, -1);
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2008-10-06 23:55:11 -07:00
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}
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2009-11-17 08:32:45 -08:00
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static void
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_request_sizing_eval(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-11-17 08:32:45 -08:00
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if (wd->needs_size_calc) return;
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wd->needs_size_calc = 1;
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evas_object_smart_changed(obj);
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}
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2008-10-06 23:55:11 -07:00
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static void
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2010-03-09 09:51:30 -08:00
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_changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
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2008-10-06 23:55:11 -07:00
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{
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2009-11-17 08:32:45 -08:00
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_request_sizing_eval(data);
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2008-10-06 23:55:11 -07:00
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}
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static void
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2010-03-09 09:51:30 -08:00
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_sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
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2008-10-06 23:55:11 -07:00
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Object *sub = event_info;
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2008-10-22 07:11:59 -07:00
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Eina_List *l;
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2009-02-25 11:50:45 -08:00
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Subinfo *si;
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-02-25 11:50:45 -08:00
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EINA_LIST_FOREACH(wd->subs, l, si)
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2008-10-06 23:55:11 -07:00
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{
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if (si->obj == sub)
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{
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2009-10-22 15:10:23 -07:00
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evas_object_event_callback_del_full(sub,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints,
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obj);
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2008-10-22 07:11:59 -07:00
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wd->subs = eina_list_remove_list(wd->subs, l);
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2009-06-09 08:29:41 -07:00
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eina_stringshare_del(si->swallow);
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2008-10-06 23:55:11 -07:00
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free(si);
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break;
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}
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}
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2009-07-06 23:46:51 -07:00
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}
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2008-10-06 23:55:11 -07:00
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2009-12-07 20:41:02 -08:00
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static void
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2010-03-09 09:51:30 -08:00
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_signal_size_eval(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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2009-12-07 20:41:02 -08:00
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{
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_request_sizing_eval(data);
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}
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2009-09-17 15:39:18 -07:00
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/**
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* Add a new layout 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 Layout
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*/
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2008-10-06 23:55:11 -07:00
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EAPI Evas_Object *
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elm_layout_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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2009-07-06 23:46:51 -07:00
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2008-10-06 23:55:11 -07:00
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wd = ELM_NEW(Widget_Data);
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e = evas_object_evas_get(parent);
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obj = elm_widget_add(e);
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2010-03-08 22:15:39 -08:00
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ELM_SET_WIDTYPE(widtype, "layout");
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2009-05-13 05:21:52 -07:00
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elm_widget_type_set(obj, "layout");
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elm_widget_sub_object_add(parent, obj);
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2008-10-06 23:55:11 -07:00
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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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2008-11-15 05:58:50 -08:00
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elm_widget_theme_hook_set(obj, _theme_hook);
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2009-11-17 08:32:45 -08:00
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elm_widget_changed_hook_set(obj, _changed_hook);
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2009-07-06 23:46:51 -07:00
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2008-10-06 23:55:11 -07:00
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wd->lay = edje_object_add(e);
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elm_widget_resize_object_set(obj, wd->lay);
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2009-12-07 20:41:02 -08:00
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edje_object_signal_callback_add(wd->lay, "size,eval", "elm",
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_signal_size_eval, obj);
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2008-10-06 23:55:11 -07:00
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evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
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2009-07-06 23:46:51 -07:00
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2009-11-17 08:32:45 -08:00
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_request_sizing_eval(obj);
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2008-10-06 23:55:11 -07:00
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return obj;
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}
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2009-09-17 15:39:18 -07:00
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/**
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* Set the file that will be used as layout
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*
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* @param obj The layout object
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* @param file The path to file (edj) that will be used as layout
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* @param group The group that the layout belongs in edje file
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*
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* @return (1 = sucess, 0 = error)
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*
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* @ingroup Layout
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*/
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2009-04-03 14:52:01 -07:00
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EAPI Eina_Bool
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2008-10-06 23:55:11 -07:00
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elm_layout_file_set(Evas_Object *obj, const char *file, const char *group)
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{
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2010-03-09 03:42:53 -08:00
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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2008-10-06 23:55:11 -07:00
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return EINA_FALSE;
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2009-04-03 14:52:01 -07:00
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Eina_Bool ret = edje_object_file_set(wd->lay, file, group);
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2009-11-17 08:32:45 -08:00
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if (ret) _request_sizing_eval(obj);
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2009-04-03 14:52:01 -07:00
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return ret;
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2008-10-06 23:55:11 -07:00
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}
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2009-12-20 08:34:45 -08:00
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/**
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* Set the edje group from the elementary theme that will be used as layout
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*
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* @param obj The layout object
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* @param clas the clas of the group
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* @param group the group
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* @param style the style to used
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*
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* @return (1 = sucess, 0 = error)
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*
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* @ingroup Layout
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*/
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EAPI Eina_Bool
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elm_layout_theme_set(Evas_Object *obj, const char *clas, const char *group, const char *style)
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{
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2010-03-09 03:42:53 -08:00
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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2009-12-20 08:34:45 -08:00
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return EINA_FALSE;
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2009-12-20 08:34:45 -08:00
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Eina_Bool ret = _elm_theme_set(wd->lay, clas, group, style);
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if (ret) _request_sizing_eval(obj);
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return ret;
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}
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2009-09-17 15:39:18 -07:00
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/**
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* Set the layout content
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*
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* @param obj The layout object
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* @param swallow The swallow group name in the edje file
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* @param content The content will be filled in this layout object
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*
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* @ingroup Layout
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*/
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2008-10-06 23:55:11 -07:00
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EAPI void
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elm_layout_content_set(Evas_Object *obj, const char *swallow, Evas_Object *content)
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{
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2010-03-08 22:15:39 -08:00
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ELM_CHECK_WIDTYPE(obj, widtype);
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2008-10-06 23:55:11 -07:00
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Widget_Data *wd = elm_widget_data_get(obj);
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Subinfo *si;
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2009-02-25 11:50:45 -08:00
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const Eina_List *l;
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2010-03-09 03:42:53 -08:00
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if (!wd) return;
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2009-02-25 11:50:45 -08:00
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EINA_LIST_FOREACH(wd->subs, l, si)
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2008-10-06 23:55:11 -07:00
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{
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if (!strcmp(swallow, si->swallow))
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{
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if (content == si->obj) return;
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elm_widget_sub_object_del(obj, si->obj);
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break;
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}
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}
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if (content)
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{
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elm_widget_sub_object_add(obj, content);
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2009-10-22 15:10:23 -07:00
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evas_object_event_callback_add(content,
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2009-09-26 12:18:36 -07:00
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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2008-10-06 23:55:11 -07:00
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_changed_size_hints, obj);
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2009-12-07 06:19:20 -08:00
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edje_object_part_swallow(wd->lay, swallow, content);
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2008-10-06 23:55:11 -07:00
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si = ELM_NEW(Subinfo);
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2009-06-09 08:29:41 -07:00
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si->swallow = eina_stringshare_add(swallow);
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2008-10-06 23:55:11 -07:00
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si->obj = content;
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2008-10-22 07:11:59 -07:00
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wd->subs = eina_list_append(wd->subs, si);
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2009-11-17 08:32:45 -08:00
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_request_sizing_eval(obj);
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2008-10-06 23:55:11 -07:00
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}
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}
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2008-10-07 00:45:49 -07:00
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2009-09-17 15:39:18 -07:00
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/**
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* Get the edje layout
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*
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* @param obj The layout object
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2009-12-07 20:41:02 -08:00
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*
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* This returns the edje object. It is not expected to be used to then swallow
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* objects via edje_object_part_swallow() for example. Use
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* elm_layout_content_set() instead so child object handling and sizing is
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* done properly. This is more intended for setting text, emitting signals,
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* hooking to singal callbacks etc.
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2009-09-17 15:39:18 -07:00
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*
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* @return A Evas_Object with the edje layout settings loaded
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* with function elm_layout_file_set
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*
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* @ingroup Layout
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*/
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2008-10-07 00:45:49 -07:00
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EAPI Evas_Object *
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2009-02-25 07:54:26 -08:00
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elm_layout_edje_get(const Evas_Object *obj)
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2008-10-07 00:45:49 -07:00
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{
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2010-03-09 03:42:53 -08:00
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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2008-10-07 00:45:49 -07:00
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Widget_Data *wd = elm_widget_data_get(obj);
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2010-03-09 03:42:53 -08:00
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if (!wd) return NULL;
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2008-10-07 00:45:49 -07:00
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return wd->lay;
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}
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2009-12-07 20:41:02 -08:00
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/**
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* Get the edje layout
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*
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2010-04-12 01:12:02 -07:00
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* Manually forms a sizing re-evaluation when contents changed state so that
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2009-12-07 20:41:02 -08:00
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* minimum size might have changed and needs re-evaluation. Also note that
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* a standard signal of "size,eval" "elm" emitted by the edje object will
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* cause this to happen too
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*
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* @param obj The layout object
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*
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* @ingroup Layout
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*/
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EAPI void
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2009-12-11 00:12:58 -08:00
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elm_layout_sizing_eval(Evas_Object *obj)
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2009-12-07 20:41:02 -08:00
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{
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2010-03-08 22:15:39 -08:00
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ELM_CHECK_WIDTYPE(obj, widtype);
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2009-12-07 20:41:02 -08:00
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_request_sizing_eval(obj);
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}
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