minor fixes

examples/layouts/flex/lv_example_flex_1.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 /**
  * A simple row and a column layout with flexbox

examples/layouts/flex/lv_example_flex_2.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 /**
  * Arrange items in rows with wrap and place the items to get even space around them.

examples/layouts/flex/lv_example_flex_3.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 /**
  * Use a built in flex layout and demonstrate flex grow.

examples/layouts/flex/lv_example_flex_4.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 /**
  * Reverse the order of flex items

examples/layouts/flex/lv_example_flex_5.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 static void row_gap_anim(lv_obj_t * obj, lv_anim_value_t v)
 {

examples/layouts/flex/lv_example_flex_6.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_FLEX && LV_BUILD_EXAMPLES
-#if LV_USE_FLEX
 
 /**
  * RTL base direction changes order of the items.

examples/layouts/grid/lv_example_grid_1.c

@@ -1,7 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
-
 
 /**
  * A simple grid

examples/layouts/grid/lv_example_grid_2.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
 
 
 /**

examples/layouts/grid/lv_example_grid_3.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
 
 /**
  * Demonstrate grid's "free unit"

examples/layouts/grid/lv_example_grid_4.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
 
 /**
  * Demonstrate track placement

examples/layouts/grid/lv_example_grid_5.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
 
 static void row_gap_anim(lv_obj_t * obj, lv_anim_value_t v)
 {
@@ -12,7 +11,7 @@ static void column_gap_anim(lv_obj_t * obj, lv_anim_value_t v)
     lv_obj_set_style_pad_column(obj, LV_PART_MAIN, LV_STATE_DEFAULT, v);
 }
 /**
- * Demonstrate margin in grid
+ * Demonstrate column and row gap
  */
 void lv_example_grid_5(void)
 {

examples/layouts/grid/lv_example_grid_6.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_GRID && LV_BUILD_EXAMPLES
-#if LV_USE_GRID
 
 /**
  * Demonstrate RTL direction on grid

examples/widgets/arc/lv_example_arc_1.c

@@ -1,6 +1,6 @@
 #include "../../../lvgl.h"
 
-#if LV_USE_ARC
+#if LV_USE_ARC && LV_BUILD_EXAMPLES
 
 void lv_example_arc_1(void) 
 {

examples/widgets/arc/lv_example_arc_2.c

@@ -1,5 +1,6 @@
 #include "../../../lvgl.h" 
-#if LV_USE_ARC
+
+#if LV_USE_ARC && LV_BUILD_EXAMPLES
 
 /**
  * An `lv_task` to call periodically to set the angles of the arc

examples/widgets/bar/lv_example_bar_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 void lv_example_bar_1(void)
 {

examples/widgets/bar/lv_example_bar_2.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 /**
  * Example of styling the bar

examples/widgets/bar/lv_example_bar_3.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 static void set_temp(lv_obj_t * bar, int32_t temp)
 {

examples/widgets/bar/lv_example_bar_4.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 /**
  * Bar with stripe pattern and ranged value

examples/widgets/bar/lv_example_bar_5.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 /**
  * Bar with LTR and RTL base direction

examples/widgets/bar/lv_example_bar_6.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_BAR
+#if LV_USE_BAR && LV_BUILD_EXAMPLES
 
 static void event_cb(lv_obj_t * obj, lv_event_t e)
 {

examples/widgets/btn/lv_example_btn_1.c

@@ -1,14 +1,13 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_BTN && LV_BUILD_EXAMPLES
-#if LV_USE_BTN
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_CLICKED) {
-        printf("Clicked\n");
+        LV_LOG_USER("Clicked\n");
     }
     else if(event == LV_EVENT_VALUE_CHANGED) {
-        printf("Toggled\n");
+        LV_LOG_USER("Toggled\n");
     }
 }
 

examples/widgets/btnmatrix/lv_example_btnmatrix_1.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_BTNMATRIX && LV_BUILD_EXAMPLES
-#if LV_USE_BTNMATRIX
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
@@ -8,7 +7,7 @@ static void event_handler(lv_obj_t * obj, lv_event_t event)
         uint32_t id = lv_btnmatrix_get_active_btn(obj);
         const char * txt = lv_btnmatrix_get_btn_text(obj, id);
 
-        printf("%s was pressed\n", txt);
+        LV_LOG_USER("%s was pressed\n", txt);
     }
 }
 

examples/widgets/btnmatrix/lv_example_btnmatrix_2.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_BTNMATRIX && LV_BUILD_EXAMPLES
-#if LV_USE_BTNMATRIX
 
 
 void event_cb(lv_obj_t * obj, lv_event_t e)

examples/widgets/btnmatrix/lv_example_btnmatrix_3.c

@@ -1,7 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_BTNMATRIX  && LV_BUILD_EXAMPLES
-#if LV_USE_BTNMATRIX
-
 
 static void event_cb(lv_obj_t * obj, lv_event_t e)
 {

examples/widgets/calendar/lv_example_calendar_1.c

@@ -1,14 +1,12 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_CALENDAR && LV_BUILD_EXAMPLES
-
-#if LV_USE_CALENDAR
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_VALUE_CHANGED) {
         lv_calendar_date_t date;
         if(lv_calendar_get_pressed_date(obj, &date)) {
-            printf("Clicked date: %02d.%02d.%d\n", date.day, date.month, date.year);
+            LV_LOG_USER("Clicked date: %02d.%02d.%d\n", date.day, date.month, date.year);
         }
     }
 }

examples/widgets/canvas/lv_example_canvas_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CANVAS
+#if LV_USE_CANVAS && LV_BUILD_EXAMPLES
 
 
 #define CANVAS_WIDTH  200

examples/widgets/canvas/lv_example_canvas_2.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CANVAS
+#if LV_USE_CANVAS && LV_BUILD_EXAMPLES
 
 #define CANVAS_WIDTH  50
 #define CANVAS_HEIGHT  50

examples/widgets/chart/lv_example_chart_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CHART
+#if LV_USE_CHART && LV_BUILD_EXAMPLES
 
 void lv_example_chart_1(void)
 {

examples/widgets/chart/lv_example_chart_2.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CHART
+#if LV_USE_CHART && LV_DRAW_COMPLEX && LV_BUILD_EXAMPLES
 
 static lv_obj_t * chart1;
 static lv_chart_series_t * ser1;

examples/widgets/chart/lv_example_chart_3.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CHART
+#if LV_USE_CHART && LV_BUILD_EXAMPLES
 
 static void event_cb(lv_obj_t * chart, lv_event_t e)
 {

examples/widgets/chart/lv_example_chart_4.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_CHART
+#if LV_USE_CHART && LV_BUILD_EXAMPLES
 
 
 static void event_cb(lv_obj_t * chart, lv_event_t e)
@@ -15,7 +15,7 @@ static void event_cb(lv_obj_t * chart, lv_event_t e)
         int32_t id = lv_chart_get_pressed_point(chart);
         if(id < 0) return;
 
-        printf("Selected point %d\n", id);
+        LV_LOG_USER("Selected point %d\n", id);
 
         lv_chart_series_t * ser = lv_chart_get_series_next(chart, NULL);
         while(ser) {

examples/widgets/checkbox/lv_example_checkbox_1.c

@@ -1,13 +1,12 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_CHECKBOX && LV_BUILD_EXAMPLES
-#if LV_USE_CHECKBOX
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_VALUE_CHANGED) {
         const char * txt = lv_checkbox_get_text(obj);
         const char * state = lv_obj_get_state(obj) & LV_STATE_CHECKED ? "Checked" : "Unchecked";
-        printf("%s: %s\n", txt, state);
+        LV_LOG_USER("%s: %s\n", txt, state);
     }
 }
 

examples/widgets/colorwheel/lv_example_colorwheel_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_COLORWHEEL
+#if LV_USE_COLORWHEEL && LV_BUILD_EXAMPLES
 
 void lv_example_colorwheel_1(void)
 {

examples/widgets/dropdown/lv_example_dropdown_1.c

@@ -1,14 +1,12 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
-#if LV_USE_DROPDOWN
-
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_VALUE_CHANGED) {
         char buf[32];
         lv_dropdown_get_selected_str(obj, buf, sizeof(buf));
-        printf("Option: %s\n", buf);
+        LV_LOG_USER("Option: %s\n", buf);
     }
 }
 

examples/widgets/dropdown/lv_example_dropdown_2.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
-#if LV_USE_DROPDOWN
 
 
 /**

examples/widgets/dropdown/lv_example_dropdown_3.c

@@ -1,7 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
-#if LV_USE_DROPDOWN
-
 
 /**
  * Create a menu from a drop-down list and show some drop-down list features and styling

examples/widgets/img/lv_example_img_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_IMG
+#if LV_USE_IMG && LV_BUILD_EXAMPLES
 
 /* Find the image here: https://github.com/lvgl/lv_examples/tree/master/assets */
 LV_IMG_DECLARE(img_cogwheel_argb);

examples/widgets/img/lv_example_img_2.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_IMG
+#if LV_USE_IMG && LV_BUILD_EXAMPLES
 
 static lv_obj_t * create_slider(lv_color_t color);
 static void slider_event_cb(lv_obj_t * slider, lv_event_t event);

examples/widgets/img/lv_example_img_3.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_IMG
+#if LV_USE_IMG && LV_BUILD_EXAMPLES
 
 LV_IMG_DECLARE(img_cogwheel_argb);
 

examples/widgets/img/lv_example_img_4.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_IMG
+#if LV_USE_IMG && LV_BUILD_EXAMPLES
 
 LV_IMG_DECLARE(img_skew_strip);
 

examples/widgets/imgbtn/lv_example_imgbtn_1.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-
+#if LV_USE_IMGBTN && LV_BUILD_EXAMPLES
-#if LV_USE_IMGBTN
 
 void lv_example_imgbtn_1(void)
 {

examples/widgets/keyboard/lv_example_keyboard_1.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_KEYBOARD
+#if LV_USE_KEYBOARD && LV_BUILD_EXAMPLES
-
 
 static void ta_event_cb(lv_obj_t * ta, lv_event_t e)
 {

examples/widgets/label/lv_example_label_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_LABEL
+#if LV_USE_LABEL && LV_BUILD_EXAMPLES
 
 /**
  * Show line wrap, re-color, line align and text scrolling.

examples/widgets/label/lv_example_label_2.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_LABEL
+#if LV_USE_LABEL && LV_BUILD_EXAMPLES
 
 /**
  * Create a fake text shadow

examples/widgets/led/lv_example_led_1.c

@@ -1,6 +1,9 @@
 #include "../../../lvgl.h"
-#if LV_USE_LED
+#if LV_USE_LED && LV_BUILD_EXAMPLES
 
+/**
+ * Create LED's with different brightness and color
+ */
 void lv_example_led_1(void)
 {
     /*Create a LED and switch it OFF*/
@@ -11,7 +14,8 @@ void lv_example_led_1(void)
     /*Copy the previous LED and set a brightness*/
     lv_obj_t * led2  = lv_led_create(lv_scr_act());
     lv_obj_align(led2, NULL, LV_ALIGN_CENTER, 0, 0);
-    lv_led_set_bright(led2, 150);
+    lv_led_set_brightness(led2, 150);
+    lv_led_set_color(led2, LV_COLOR_RED);
 
     /*Copy the previous LED and switch it ON*/
     lv_obj_t * led3  = lv_led_create(lv_scr_act());

examples/widgets/line/lv_example_line_1.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_LINE
+#if LV_USE_LINE && LV_BUILD_EXAMPLES
 
 void lv_example_line_1(void)
 {

examples/widgets/list/lv_example_list_1.c

@@ -1,11 +1,10 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_LIST && LV_BUILD_EXAMPLES
-#if LV_USE_LIST
 
 static void event_handler(lv_obj_t * obj, lv_event_t event)
 {
     if(event == LV_EVENT_CLICKED) {
-        printf("Clicked: %s\n", lv_list_get_btn_text(obj));
+        LV_LOG_USER("Clicked: %s\n", lv_list_get_btn_text(obj));
     }
 }
 void lv_list_example_1(void)

examples/widgets/meter/lv_example_meter_1.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_METER && LV_BUILD_EXAMPLES
-#if LV_USE_METER
 
 static lv_obj_t * meter;
 

examples/widgets/meter/lv_example_meter_2.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_METER && LV_BUILD_EXAMPLES
-#if LV_USE_METER
 
 static lv_obj_t * meter;
 

examples/widgets/meter/lv_example_meter_3.c

@@ -1,6 +1,5 @@
 #include "../../../lvgl.h"
-#include <stdio.h>
+#if LV_USE_METER && LV_BUILD_EXAMPLES
-#if LV_USE_METER
 
 static lv_obj_t * meter;