140 lines
3.6 KiB
C
140 lines
3.6 KiB
C
#include <string.h>
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#include <Elementary.h>
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#include "elm_priv.h"
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/**
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* @defgroup Bg Bg
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*
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* The bg object is used for setting a solid background to a window or packing
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* into any container object.
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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 *img, *custom_img;
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const char *file, *group;
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};
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static void _del_hook(Evas_Object *obj);
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static void _custom_resize(void *data, Evas *a, 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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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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_elm_theme_set(wd->img, "bg", "base", elm_widget_style_get(obj));
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}
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static void
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_custom_resize(void *data, Evas *a, Evas_Object *obj, void *event_info)
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{
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Widget_Data *wd = data;
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int iw = 0, ih = 0;
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Evas_Coord x, y, w, h, ow = 0, oh = 0;
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evas_object_geometry_get(obj, NULL, NULL, &ow, &oh);
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evas_object_image_size_get(obj, &iw, &ih);
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if ((iw < 1) || (ih < 1)) return;
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w = ow;
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h = (ih * w) / iw;
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if (h < oh)
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{
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h = oh;
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w = (iw * h) / ih;
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}
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x = (ow - w) / 2;
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y = (oh - h) / 2;
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evas_object_image_fill_set(obj, x, y, w, h);
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}
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/**
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* Add a new background 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 Bg
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*/
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EAPI Evas_Object *
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elm_bg_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_widget_type_set(obj, "bg");
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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, 0);
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wd->img = edje_object_add(e);
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_elm_theme_set(wd->img, "bg", "base", "default");
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elm_widget_resize_object_set(obj, wd->img);
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return obj;
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}
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/**
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* Set the file (image or edje) used for the background
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*
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* @param obj The bg object
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* @param file The file path
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* @param group Optional key (group in Edje) within the file
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*
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* This sets the image file used in the background object. The image (or edje)
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* will be stretched (retaining aspect if its an image file) to completely fill
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* the bg object. This may mean some parts arte not visible.
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*
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* @ingroup Bg
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*/
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EAPI void
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elm_bg_file_set(Evas_Object *obj, const char *file, const char *group)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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const char *p;
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if (wd->custom_img)
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{
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evas_object_del(wd->custom_img);
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wd->custom_img = NULL;
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}
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if (!file) return;
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if (wd->file) eina_stringshare_del(wd->file);
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if (file) wd->file = eina_stringshare_add(file);
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else wd->file = NULL;
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if (wd->group) eina_stringshare_del(wd->group);
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if (group) wd->group = eina_stringshare_add(group);
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else wd->group = NULL;
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if (((p = strrchr(file, '.'))) && (!strcasecmp(p, ".edj")))
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{
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wd->custom_img = edje_object_add(evas_object_evas_get(wd->img));
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edje_object_file_set(wd->custom_img, file, group);
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}
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else
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{
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wd->custom_img = evas_object_image_add(evas_object_evas_get(wd->img));
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evas_object_event_callback_add(wd->custom_img, EVAS_CALLBACK_RESIZE,
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_custom_resize, wd);
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evas_object_image_file_set(wd->custom_img, file, group);
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}
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elm_widget_sub_object_add(obj, wd->custom_img);
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evas_object_repeat_events_set(wd->custom_img, 1);
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edje_object_part_swallow(wd->img, "elm.swallow.background", wd->custom_img);
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evas_object_show(wd->custom_img);
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}
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