From 97282e67bdb9265a6d85076f7a842554d79fb683 Mon Sep 17 00:00:00 2001
From: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
Date: Wed, 19 May 2021 21:54:32 +0200
Subject: [PATCH] feat(example) add obj drag example

---
 examples/widgets/lv_example_widgets.h   |  1 +
 examples/widgets/obj/index.rst          |  8 +++++-
 examples/widgets/obj/lv_example_obj_2.c | 33 +++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 examples/widgets/obj/lv_example_obj_2.c

diff --git a/examples/widgets/lv_example_widgets.h b/examples/widgets/lv_example_widgets.h
index b67890d68..08fb72195 100644
--- a/examples/widgets/lv_example_widgets.h
+++ b/examples/widgets/lv_example_widgets.h
@@ -91,6 +91,7 @@ void lv_example_meter_4(void);
 void lv_example_msgbox_1(void);
 
 void lv_example_obj_1(void);
+void lv_example_obj_2(void);
 
 void lv_example_roller_1(void);
 void lv_example_roller_2(void);
diff --git a/examples/widgets/obj/index.rst b/examples/widgets/obj/index.rst
index 3b098c490..737e9abd2 100644
--- a/examples/widgets/obj/index.rst
+++ b/examples/widgets/obj/index.rst
@@ -4,7 +4,13 @@ C
 Base objects with custom styles 
 """"""""""""""""""""""""""""""""
 
-.. lv_example:: lv_ex_widgets/lv_ex_obj/lv_ex_obj_1
+.. lv_example:: widgets/obj/lv_example_obj_1
+  :language: c
+  
+Make an object draggable 
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/obj/lv_example_obj_2
   :language: c
 
 MicroPython
diff --git a/examples/widgets/obj/lv_example_obj_2.c b/examples/widgets/obj/lv_example_obj_2.c
new file mode 100644
index 000000000..631e9e611
--- /dev/null
+++ b/examples/widgets/obj/lv_example_obj_2.c
@@ -0,0 +1,33 @@
+#include "../../lv_examples.h"
+#if LV_BUILD_EXAMPLES
+
+static void drag_event_handler(lv_event_t * e)
+{
+    lv_obj_t * obj = lv_event_get_target(e);
+
+    lv_indev_t * indev = lv_indev_get_act();
+    lv_point_t vect;
+    lv_indev_get_vect(indev, &vect);
+
+    lv_coord_t x = lv_obj_get_x(obj) + vect.x;
+    lv_coord_t y = lv_obj_get_y(obj) + vect.y;
+    lv_obj_set_pos(obj, x, y);
+}
+
+
+/**
+ * Make an object dragable.
+ */
+void lv_example_obj_2(void)
+{
+    lv_obj_t * obj;
+    obj = lv_obj_create(lv_scr_act());
+    lv_obj_set_size(obj, 150, 100);
+    lv_obj_add_event_cb(obj, drag_event_handler, LV_EVENT_PRESSING, NULL);
+
+    lv_obj_t * label = lv_label_create(obj);
+    lv_label_set_text(label, "Drag me");
+    lv_obj_center(label);
+
+}
+#endif