Add sesitivty setter

src/lv_widgets/lv_rotary.c

@@ -107,6 +107,7 @@ lv_obj_t * lv_rotary_create(lv_obj_t * par, const lv_obj_t * copy)
         ext->max_value = copy_ext->max_value;
         ext->dragging = copy_ext->dragging;
         ext->sym = copy_ext->sym;
+        ext->sensitivity = copy_ext->sensitivity;
         lv_style_list_copy(&ext->style_knob, &copy_ext->style_knob);
 
         lv_obj_refresh_style(rotary, LV_OBJ_PART_ALL);
@@ -191,6 +192,20 @@ void lv_rotary_set_symmetric(lv_obj_t * rotary, bool en)
     lv_obj_invalidate(rotary);
 }
 
+/**
+ * Set the sesitivity of rotary knob increments
+ * position.
+ * @param rotary pointer to a rotary object
+ * @param sensitivity increment multiplier
+ */
+void lv_rotary_set_sensitivity(lv_obj_t * rotary, uint16_t sensitivity)
+{
+    LV_ASSERT_OBJ(rotary, LV_OBJX_NAME);
+
+    lv_rotary_ext_t *ext = (lv_rotary_ext_t *)lv_obj_get_ext_attr(rotary);
+    ext->sensitivity = sensitivity;
+}
+
 /*=====================
  * Getter functions
  *====================*/
@@ -321,13 +336,13 @@ static lv_res_t lv_rotary_signal(lv_obj_t * rotary, lv_signal_t sign, void * par
         ext->last_drag_x = p.x;
         if (ext->knob_area.y1 < p.y && p.y < ext->knob_area.y2) {
             if (drag_x_diff > 0 && p.x < ext->knob_area.x2) {
-                lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_x_diff, LV_ANIM_ON);
+                lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_x_diff * ext->sensitivity, LV_ANIM_ON);
                 res = lv_event_send(rotary, LV_EVENT_VALUE_CHANGED, NULL);
                 if(res != LV_RES_OK) return res;
             }
             else if (drag_x_diff < 0 && p.x > ext->knob_area.x1) {
                 ext->last_drag_x = p.x;
-                lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_x_diff, LV_ANIM_ON);
+                lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_x_diff * ext->sensitivity, LV_ANIM_ON);
                 res = lv_event_send(rotary, LV_EVENT_VALUE_CHANGED, NULL);
                 if(res != LV_RES_OK) return res;
             }
@@ -352,12 +367,12 @@ static lv_res_t lv_rotary_signal(lv_obj_t * rotary, lv_signal_t sign, void * par
         char c = *((char *)param);
 
         if(c == LV_KEY_RIGHT || c == LV_KEY_UP) {
-            lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + 1, LV_ANIM_ON);
+            lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + ext->sensitivity, LV_ANIM_ON);
             res = lv_event_send(rotary, LV_EVENT_VALUE_CHANGED, NULL);
             if(res != LV_RES_OK) return res;
         }
         else if(c == LV_KEY_LEFT || c == LV_KEY_DOWN) {
-            lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) - 1, LV_ANIM_ON);
+            lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) - ext->sensitivity, LV_ANIM_ON);
             res = lv_event_send(rotary, LV_EVENT_VALUE_CHANGED, NULL);
             if(res != LV_RES_OK) return res;
         }

src/lv_widgets/lv_rotary.h

@@ -67,9 +67,11 @@ typedef struct {
     int16_t cur_value; /*Current value of the rotary*/
     int16_t min_value; /*Minimum value of the rotary*/
     int16_t max_value; /*Maximum value of the rotary*/
-    uint16_t dragging   :1;
     lv_coord_t last_drag_x; /*Last drag x coordintate of the rotary*/
+    uint16_t dragging    :1;
     uint16_t sym         :1;
+    uint16_t sensitivity :1;
+
 } lv_rotary_ext_t;
 
 /** Built-in styles of rotary*/
@@ -121,6 +123,14 @@ void lv_rotary_set_range(lv_obj_t * rotary, int16_t min, int16_t max);
  */
 void lv_rotary_set_symmetric(lv_obj_t * rotary, bool en);
 
+/**
+ * Set the sesitivity of rotary knob increments
+ * position.
+ * @param rotary pointer to a rotary object
+ * @param sensitivity increment multiplier
+ */
+void lv_rotary_set_sensitivity(lv_obj_t * rotary, uint16_t sensitivity);
+
 /**
  * Set the start angle of rotary indicator. 0 deg: right, 90 bottom, etc.
  * @param arc pointer to an arc object