add dependecy check to some object types

lv_objx/lv_img.c

@@ -9,6 +9,15 @@
 #include "../../lv_conf.h"
 #if USE_LV_IMG != 0
 
+/*Testing of dependencies*/
+#if USE_LV_LABEL == 0
+#error "lv_img: lv_label is required. Enable it in lv_conf.h (USE_LV_LABEL  1) "
+#endif
+
+#if USE_LV_FILESYSTEM == 0
+#error "lv_img: lv_fs is required. Enable it in lv_conf.h (USE_LV_FILESYSTEM  1) "
+#endif
+
 #include "lv_img.h"
 #include "../lv_draw/lv_draw.h"
 #include "../lv_themes/lv_theme.h"

lv_objx/lv_kb.h

@@ -16,6 +16,15 @@ extern "C" {
 #include "../../lv_conf.h"
 #if USE_LV_KB != 0
 
+/*Testing of dependencies*/
+#if USE_LV_BTNM == 0
+#error "lv_kb: lv_btnm is required. Enable it in lv_conf.h (USE_LV_BTNM  1) "
+#endif
+
+#if USE_LV_TA == 0
+#error "lv_kb: lv_ta is required. Enable it in lv_conf.h (USE_LV_TA  1) "
+#endif
+
 #include "../lv_core/lv_obj.h"
 #include "lv_btnm.h"
 

lv_objx/lv_roller.h

@@ -16,6 +16,11 @@ extern "C" {
 #include "../../lv_conf.h"
 #if USE_LV_ROLLER != 0
 
+/*Testing of dependencies*/
+#if USE_LV_DDLIST == 0
+#error "lv_roller: lv_ddlist is required. Enable it in lv_conf.h (USE_LV_DDLIST  1) "
+#endif
+
 #include "../lv_core/lv_obj.h"
 #include "lv_ddlist.h"
 

lv_objx/lv_slider.h

@@ -16,6 +16,11 @@ extern "C" {
 #include "../../lv_conf.h"
 #if USE_LV_SLIDER != 0
 
+/*Testing of dependencies*/
+#if USE_LV_BAR == 0
+#error "lv_slider: lv_bar is required. Enable it in lv_conf.h (USE_LV_BAR  1) "
+#endif
+
 #include "../lv_core/lv_obj.h"
 #include "lv_bar.h"
 

lv_objx/lv_sw.c

@@ -9,6 +9,11 @@
 #include "../../lv_conf.h"
 #if USE_LV_SW != 0
 
+/*Testing of dependencies*/
+#if USE_LV_SLIDER == 0
+#error "lv_sw: lv_slider is required. Enable it in lv_conf.h (USE_LV_SLIDER  1) "
+#endif
+
 #include "lv_sw.h"
 #include "../lv_themes/lv_theme.h"