LVGL 库提交

2026-08-30 08:57:07 +08:00
parent 26c9098630
commit e2f199c6bf
1056 changed files with 556743 additions and 45 deletions
@@ -0,0 +1,106 @@
+/**
+ * @file lv_spinner.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../../misc/lv_anim_private.h"
+#include "../../core/lv_obj_class_private.h"
+#include "../../lvgl.h"
+#if LV_USE_SPINNER
+
+/*********************
+ *      DEFINES
+ *********************/
+#define DEF_ARC_ANGLE   200
+#define DEF_TIME        1000
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+static void lv_spinner_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
+static void arc_anim_start_angle(void * obj, int32_t v);
+static void arc_anim_end_angle(void * obj, int32_t v);
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+const lv_obj_class_t lv_spinner_class = {
+    .base_class = &lv_arc_class,
+    .constructor_cb = lv_spinner_constructor,
+    .name = "lv_spinner",
+};
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+lv_obj_t * lv_spinner_create(lv_obj_t * parent)
+{
+
+    lv_obj_t * obj = lv_obj_class_create_obj(&lv_spinner_class, parent);
+    lv_obj_class_init_obj(obj);
+    return obj;
+}
+
+void lv_spinner_set_anim_params(lv_obj_t * obj, uint32_t t, uint32_t angle)
+{
+    /*Delete the current animation*/
+    lv_anim_delete(obj, NULL);
+
+    lv_anim_t a;
+    lv_anim_init(&a);
+    lv_anim_set_var(&a, obj);
+    lv_anim_set_exec_cb(&a, arc_anim_end_angle);
+    lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
+    lv_anim_set_duration(&a, t);
+    lv_anim_set_values(&a, angle, 360 + angle);
+    lv_anim_start(&a);
+
+    lv_anim_set_path_cb(&a, lv_anim_path_custom_bezier3);
+    lv_anim_set_bezier3_param(&a, LV_BEZIER_VAL_FLOAT(0.42), LV_BEZIER_VAL_FLOAT(0.58),
+                              LV_BEZIER_VAL_FLOAT(0), LV_BEZIER_VAL_FLOAT(1));
+    lv_anim_set_values(&a, 0, 360);
+    lv_anim_set_exec_cb(&a, arc_anim_start_angle);
+    lv_anim_start(&a);
+
+    lv_arc_set_bg_angles(obj, 0, 360);
+    lv_arc_set_rotation(obj, 270);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static void lv_spinner_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
+{
+    LV_TRACE_OBJ_CREATE("begin");
+
+    LV_UNUSED(class_p);
+
+    lv_obj_remove_flag(obj, LV_OBJ_FLAG_CLICKABLE);
+
+    lv_spinner_set_anim_params(obj, DEF_TIME, DEF_ARC_ANGLE);
+}
+
+static void arc_anim_start_angle(void * obj, int32_t v)
+{
+    lv_arc_set_start_angle(obj, (uint32_t) v);
+}
+
+static void arc_anim_end_angle(void * obj, int32_t v)
+{
+    lv_arc_set_end_angle(obj, (uint32_t) v);
+}
+
+#endif /*LV_USE_SPINNER*/
@@ -0,0 +1,63 @@
+/**
+ * @file lv_spinner.h
+ *
+ */
+
+#ifndef LV_SPINNER_H
+#define LV_SPINNER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../../lv_conf_internal.h"
+
+#if LV_USE_SPINNER
+
+/*Testing of dependencies*/
+#if LV_USE_ARC == 0
+#error "lv_spinner: lv_arc is required. Enable it in lv_conf.h (LV_USE_ARC  1) "
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+LV_ATTRIBUTE_EXTERN_DATA extern const lv_obj_class_t lv_spinner_class;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * Create a spinner widget
+ * @param parent    pointer to an object, it will be the parent of the new spinner.
+ * @return          the created spinner
+ */
+lv_obj_t * lv_spinner_create(lv_obj_t * parent);
+
+/**
+ * Set the animation time and arc length of the spinner
+ * @param obj       pointer to a spinner
+ * @param t         the animation time in milliseconds
+ * @param angle     the angle of the arc in degrees
+ */
+void lv_spinner_set_anim_params(lv_obj_t * obj, uint32_t t, uint32_t angle);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /*LV_USE_SPINNER*/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_SPINNER_H*/