shadow bottom added

lv_obj/lv_obj.c

@@ -1448,13 +1448,13 @@ static bool lv_obj_design(lv_obj_t * obj, const  area_t * mask_p, lv_design_mode
         lv_obj_get_cords(obj, &area_tmp);
         area_tmp.x1 += r;
         area_tmp.x2 -= r;
-        if(area_is_in(mask_p, &area_tmp) != true) return false;
+        if(area_is_in(mask_p, &area_tmp) == false) return false;
 
         /*Check vertically without radius*/
         lv_obj_get_cords(obj, &area_tmp);
         area_tmp.y1 += r;
         area_tmp.y2 -= r;
-        if(area_is_in(mask_p, &area_tmp) != true) return false;
+        if(area_is_in(mask_p, &area_tmp) == false) return false;
 
     } else if(mode == LV_DESIGN_DRAW_MAIN) {
 		lv_style_t * style = lv_obj_get_style(obj);

lv_obj/lv_style.c

@@ -72,6 +72,7 @@ void lv_style_init (void)
     lv_style_set_opad(&lv_style_scr, LV_DPI / 12);
     lv_style_set_bopa(&lv_style_scr, OPA_COVER);
     lv_style_set_empty(&lv_style_scr, false);
+    lv_style_set_stype(&lv_style_scr, LV_STYPE_FULL);
 
     lv_style_set_font(&lv_style_scr, font_get(FONT_DEFAULT));
     lv_style_set_letter_space(&lv_style_scr, 1 * LV_DOWNSCALE);
@@ -366,6 +367,16 @@ void lv_style_set_empty(lv_style_t * style, bool empty)
     style->empty = empty == false ? 0 : 1;
 }
 
+/**
+ * Set the shadow type (position) of a style
+ * @param style pointer to style
+ * @param stype shadow type from 'lv_shadow_type_t' enum
+ */
+void lv_style_set_stype(lv_style_t * style, lv_stype_t stype)
+{
+    style->stype = stype;
+}
+
 /**
  * Set the font of a style
  * @param style pointer to style
@@ -580,6 +591,16 @@ bool lv_style_get_empty(lv_style_t * style, bool empty)
     return style->empty == false ? 0 : 1;
 }
 
+/**
+ * Get the shadow type attribute
+ * @param style pointer to style
+ * @return shadow type from 'lv_stype_t' enum
+ */
+bool lv_style_get_stype(lv_style_t * style, bool empty)
+{
+    return style->stype;
+}
+
 /**
  * Get the font of a style
  * @param style pointer to style

lv_obj/lv_style.h

@@ -28,12 +28,21 @@ typedef enum {
     LV_TXT_ALIGN_MID,
 }lv_txt_align_t;
 
+
+/*Shadow types*/
+typedef enum
+{
+    LV_STYPE_BOTTOM = 0,
+    LV_STYPE_FULL,
+}lv_stype_t;
+
 typedef struct
 {
     /*Object level styles*/
     color_t ccolor;     /*Content color (e.g. text or image re-color )*/
     opa_t opa;          /*Opacity of the object*/
     uint8_t empty :1;   /*Transparent background (border drawn)*/
+    uint8_t stype :3;   /*Shadow type from 'lv_shadow_type_t'*/
     color_t mcolor;     /*Main color of background*/
     color_t gcolor;     /*Gradient color of background*/
     color_t bcolor;     /*Border color of background*/
@@ -100,6 +109,7 @@ lv_style_t * lv_style_inherit(lv_style_t * result, const lv_style_t * child, con
  */
 void lv_style_set_ccolor(lv_style_t * style, color_t ccolor);
 
+void lv_style_set_stype(lv_style_t * style, lv_stype_t stype);
 /**
  * Clear the content color of a style (it will be inherited from the parent style)
  * @param style pointer to a style