361 lines
8.9 KiB
C
361 lines
8.9 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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/**
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* @defgroup Mapbuf Mapbuf
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*
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* This holds 1 content object and uses an Evas Map to move/resize etc. it.
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*/
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typedef struct _Widget_Data Widget_Data;
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struct _Widget_Data
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{
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Evas_Object *content;
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Eina_Bool enabled : 1;
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Eina_Bool alpha : 1;
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Eina_Bool smooth : 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 _theme_hook(Evas_Object *obj);
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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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if (!wd) return;
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free(wd);
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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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_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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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Coord minw = -1, minh = -1;
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Evas_Coord maxw = -1, maxh = -1;
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if (!wd) return;
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if (wd->content)
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{
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evas_object_size_hint_min_get(wd->content, &minw, &minh);
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evas_object_size_hint_max_get(wd->content, &maxw, &maxh);
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}
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evas_object_size_hint_min_set(obj, minw, minh);
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evas_object_size_hint_max_set(obj, maxw, maxh);
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}
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static void
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_changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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if (!wd) return;
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_sizing_eval(data);
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}
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static void
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_sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
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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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if (!wd) return;
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if (sub == wd->content)
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{
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evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints, obj);
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wd->content = NULL;
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_sizing_eval(obj);
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}
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}
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static void
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_mapbuf(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Coord x, y, w, h;
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if (!wd) return;
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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if (wd->enabled)
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{
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Evas_Map *m;
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m = evas_map_new(4);
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evas_map_util_points_populate_from_geometry(m, x, y, w, h, 0);
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evas_map_smooth_set(m, wd->smooth);
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evas_map_alpha_set(m, wd->alpha);
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evas_object_map_set(wd->content, m);
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evas_object_map_enable_set(wd->content, wd->enabled);
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evas_map_free(m);
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}
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else
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{
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evas_object_map_set(wd->content, NULL);
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evas_object_map_enable_set(wd->content, 0);
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evas_object_move(wd->content, x, y);
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evas_object_resize(wd->content, w, h);
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}
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}
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static void
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_configure(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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if (wd->content)
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{
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Evas_Coord x, y, w, h, x2, y2;
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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evas_object_geometry_get(wd->content, &x2, &y2, NULL, NULL);
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if ((x != x2) || (y != y2))
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{
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if (!wd->enabled)
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evas_object_move(wd->content, x, y);
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else
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{
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Evas *e = evas_object_evas_get(obj);
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evas_smart_objects_calculate(e);
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evas_nochange_push(e);
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// printf("x--------------------\n");
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evas_object_move(wd->content, x, y);
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evas_smart_objects_calculate(e);
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// printf("y--------------------\n");
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evas_nochange_pop(e);
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}
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}
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evas_object_resize(wd->content, w, h);
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_mapbuf(obj);
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}
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}
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static void
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_move(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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_configure(obj);
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}
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static void
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_resize(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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_configure(obj);
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}
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/**
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* Add a new mapbuf 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 Mapbuf
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*/
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EAPI Evas_Object *
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elm_mapbuf_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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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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ELM_SET_WIDTYPE(widtype, "mapbuf");
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elm_widget_type_set(obj, "mapbuf");
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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_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, NULL);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, NULL);
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wd->enabled = 0;
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wd->alpha = 1;
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wd->smooth = 1;
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_sizing_eval(obj);
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return obj;
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}
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/**
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* Set the mapbuf front content
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*
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* Once the content object is set, a previously set one will be deleted.
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* If you want to keep that old content object, use the
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* elm_mapbuf_content_unset() function.
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*
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* @param obj The mapbuf object
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* @param content The content will be filled in this mapbuf object
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*
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* @ingroup Mapbuf
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*/
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EAPI void
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elm_mapbuf_content_set(Evas_Object *obj, Evas_Object *content)
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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 (wd->content == content) return;
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if (wd->content) evas_object_del(wd->content);
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wd->content = content;
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if (content)
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{
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// FIXME: dont handle del
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elm_widget_sub_object_add(content, obj);
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evas_object_smart_member_add(content, obj);
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evas_object_clip_set(content, evas_object_clip_get(obj));
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evas_object_event_callback_add(content,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints, obj);
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}
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_sizing_eval(obj);
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_configure(obj);
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}
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/**
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* Unset the mapbuf front content
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*
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* Unparent and return the content object which was set for this widget.
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*
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* @param obj The mapbuf object
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* @return The content that was being used
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*
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* @ingroup Mapbuf
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*/
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EAPI Evas_Object *
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elm_mapbuf_content_unset(Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Object *content;
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if (!wd) return NULL;
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if (!wd->content) return NULL;
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content = wd->content;
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elm_widget_sub_object_del(obj, wd->content);
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evas_object_smart_member_del(wd->content);
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evas_object_clip_unset(wd->content);
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wd->content = NULL;
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return content;
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}
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/**
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* Set the mapbuf enabled state
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*
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* @param obj The mapbuf object
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* @param enabled The value to set the enabled state to
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*
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* @ingroup Mapbuf
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*/
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EAPI void
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elm_mapbuf_enabled_set(Evas_Object *obj, Eina_Bool enabled)
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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 (wd->enabled == enabled) return;
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wd->enabled = enabled;
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_configure(obj);
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}
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/**
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* Get the mapbuf enabled state
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*
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* @param obj The mapbuf object
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* @return The value that the enabled state is set to
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*
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* @ingroup Mapbuf
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*/
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EAPI Eina_Bool
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elm_mapbuf_enabled_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return EINA_FALSE;
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return wd->enabled;
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}
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/**
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* Sets the mapbuf smooth state
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*
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* @param obj The mapbuf object
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* @param smooth The value of the smooth state of @p obj
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*
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* @ingroup Mapbuf
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*/
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EAPI void
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elm_mapbuf_smooth_set(Evas_Object *obj, Eina_Bool smooth)
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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 (wd->smooth == smooth) return;
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wd->smooth = smooth;
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_configure(obj);
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}
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/**
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* Gets the mapbuf smooth state
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*
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* @param obj The mapbuf object
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* @return The value of the smooth state of @p obj
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*
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* @ingroup Mapbuf
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*/
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EAPI Eina_Bool
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elm_mapbuf_smooth_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return EINA_FALSE;
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return wd->smooth;
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}
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/**
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* Enables/disables the mapbuf alpha channel
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*
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* @param obj The mapbuf object
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* @param alpha The state of the alpha channel
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*
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* @ingroup Mapbuf
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*/
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EAPI void
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elm_mapbuf_alpha_set(Evas_Object *obj, Eina_Bool alpha)
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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 (wd->alpha == alpha) return;
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wd->alpha = alpha;
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_configure(obj);
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}
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/**
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* Gets the state of the mapbuf alpha channel
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*
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* @param obj The mapbuf object
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* @return The state of the alpha channel
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*
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* @ingroup Mapbuf
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*/
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EAPI Eina_Bool
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elm_mapbuf_alpha_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return EINA_FALSE;
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return wd->alpha;
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}
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