feat(buttonmatrix): add property interface support

Add property interface for buttonmatrix widget:
- SELECTED_BUTTON, ONE_CHECKED
- Add property test function

src/core/lv_obj_property.h

@@ -115,6 +115,7 @@ enum _lv_prop_id_range_boundary_t {
     LV_PROPERTY_SPINNER_START   = 0x1200, /* lv_spinner.c */
     LV_PROPERTY_TABLE_START     = 0x1300, /* lv_table.c */
     LV_PROPERTY_TABVIEW_START   = 0x1400, /* lv_tabview.c */
+    LV_PROPERTY_BUTTONMATRIX_START = 0x1500, /* lv_buttonmatrix.c */
 
     /*Special ID, use it to extend ID and make sure it's unique and compile time determinant*/
     LV_PROPERTY_ID_BUILTIN_LAST = 0xffff, /*ID of 0x10000 ~ 0xfffffff is reserved for user*/

src/widgets/buttonmatrix/lv_buttonmatrix.c

@@ -66,6 +66,21 @@ static void free_map(lv_buttonmatrix_t * btnm);
 static const char * const lv_buttonmatrix_def_map[] = {"Btn1", "Btn2", "Btn3", "\n", "Btn4", "Btn5", ""};
 #endif
 
+#if LV_USE_OBJ_PROPERTY
+static const lv_property_ops_t lv_buttonmatrix_properties[] = {
+    {
+        .id = LV_PROPERTY_BUTTONMATRIX_SELECTED_BUTTON,
+        .setter = lv_buttonmatrix_set_selected_button,
+        .getter = lv_buttonmatrix_get_selected_button,
+    },
+    {
+        .id = LV_PROPERTY_BUTTONMATRIX_ONE_CHECKED,
+        .setter = lv_buttonmatrix_set_one_checked,
+        .getter = lv_buttonmatrix_get_one_checked,
+    },
+};
+#endif
+
 const lv_obj_class_t lv_buttonmatrix_class = {
     .constructor_cb = lv_buttonmatrix_constructor,
     .destructor_cb = lv_buttonmatrix_destructor,
@@ -77,6 +92,7 @@ const lv_obj_class_t lv_buttonmatrix_class = {
     .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE,
     .base_class = &lv_obj_class,
     .name = "lv_buttonmatrix",
+    LV_PROPERTY_CLASS_FIELDS(buttonmatrix, BUTTONMATRIX)
 };
 
 /**********************

src/widgets/buttonmatrix/lv_buttonmatrix.h

@@ -18,6 +18,7 @@ extern "C" {
 #if LV_USE_BUTTONMATRIX != 0
 
 #include "../../core/lv_obj.h"
+#include "../../core/lv_obj_property.h"
 
 /*********************
  *      DEFINES
@@ -67,6 +68,14 @@ typedef bool (*lv_buttonmatrix_button_draw_cb_t)(lv_obj_t * btnm, uint32_t btn_i
 
 LV_ATTRIBUTE_EXTERN_DATA extern const lv_obj_class_t lv_buttonmatrix_class;
 
+#if LV_USE_OBJ_PROPERTY
+enum _lv_property_buttonmatrix_id_t {
+    LV_PROPERTY_ID(BUTTONMATRIX, SELECTED_BUTTON, LV_PROPERTY_TYPE_INT, 0),
+    LV_PROPERTY_ID(BUTTONMATRIX, ONE_CHECKED,     LV_PROPERTY_TYPE_BOOL, 1),
+    LV_PROPERTY_BUTTONMATRIX_END,
+};
+#endif
+
 /**********************
  * GLOBAL PROTOTYPES
  **********************/

src/widgets/property/lv_buttonmatrix_properties.c

@@ -0,0 +1,24 @@
+
+/**
+ * GENERATED FILE, DO NOT EDIT IT!
+ * @file lv_buttonmatrix_properties.c
+ */
+
+#include "../buttonmatrix/lv_buttonmatrix.h"
+
+#if LV_USE_OBJ_PROPERTY && LV_USE_OBJ_PROPERTY_NAME
+
+#if LV_USE_BUTTONMATRIX
+/**
+ * Buttonmatrix widget property names, name must be in order.
+ * Generated code from properties.py
+ */
+/* *INDENT-OFF* */
+const lv_property_name_t lv_buttonmatrix_property_names[2] = {
+    {"one_checked",            LV_PROPERTY_BUTTONMATRIX_ONE_CHECKED,},
+    {"selected_button",        LV_PROPERTY_BUTTONMATRIX_SELECTED_BUTTON,},
+};
+#endif /*LV_USE_BUTTONMATRIX*/
+
+/* *INDENT-ON* */
+#endif

src/widgets/property/lv_obj_property_names.h

@@ -13,6 +13,7 @@
     extern const lv_property_name_t lv_animimage_property_names[4];
     extern const lv_property_name_t lv_arc_property_names[11];
     extern const lv_property_name_t lv_bar_property_names[6];
+    extern const lv_property_name_t lv_buttonmatrix_property_names[2];
     extern const lv_property_name_t lv_checkbox_property_names[1];
     extern const lv_property_name_t lv_dropdown_property_names[9];
     extern const lv_property_name_t lv_image_property_names[11];

tests/src/test_cases/widgets/test_btnmatrix.c

@@ -456,4 +456,33 @@ void test_button_matrix_focused_event_works(void)
     TEST_ASSERT_TRUE(event_triggered);
 }
 
+void test_buttonmatrix_properties(void)
+{
+#if LV_USE_OBJ_PROPERTY
+    lv_obj_t * obj = lv_buttonmatrix_create(lv_screen_active());
+
+    lv_property_t prop = { };
+
+    /* Test SELECTED_BUTTON property */
+    prop.id = LV_PROPERTY_BUTTONMATRIX_SELECTED_BUTTON;
+    prop.num = 2;
+    TEST_ASSERT_TRUE(lv_obj_set_property(obj, &prop) == LV_RESULT_OK);
+    TEST_ASSERT_EQUAL_INT(2, lv_obj_get_property(obj, LV_PROPERTY_BUTTONMATRIX_SELECTED_BUTTON).num);
+
+    /* Test ONE_CHECKED property */
+    lv_buttonmatrix_set_button_ctrl_all(obj, LV_BUTTONMATRIX_CTRL_CHECKABLE);
+
+    prop.id = LV_PROPERTY_BUTTONMATRIX_ONE_CHECKED;
+    prop.num = 1;
+    TEST_ASSERT_TRUE(lv_obj_set_property(obj, &prop) == LV_RESULT_OK);
+    TEST_ASSERT_EQUAL_INT(1, lv_obj_get_property(obj, LV_PROPERTY_BUTTONMATRIX_ONE_CHECKED).num);
+
+    prop.num = 0;
+    TEST_ASSERT_TRUE(lv_obj_set_property(obj, &prop) == LV_RESULT_OK);
+    TEST_ASSERT_EQUAL_INT(0, lv_obj_get_property(obj, LV_PROPERTY_BUTTONMATRIX_ONE_CHECKED).num);
+
+    lv_obj_delete(obj);
+#endif
+}
+
 #endif