From b66935af52e8a74a2145990c21db845a03dfde86 Mon Sep 17 00:00:00 2001
From: Michele Bini <michele.bini@gmail.com>
Date: Wed, 30 Mar 2022 01:18:19 +0200
Subject: Brief digression into alalog24 display using lv_linemeter


diff --git a/src/displayapp/screens/WatchFaceDigital.cpp b/src/displayapp/screens/WatchFaceDigital.cpp
index 68c6acb..1436a79 100644
--- a/src/displayapp/screens/WatchFaceDigital.cpp
+++ b/src/displayapp/screens/WatchFaceDigital.cpp
@@ -33,6 +33,29 @@ WatchFaceDigital::WatchFaceDigital(DisplayApp* app,
     settingsController {settingsController},
     motionController {motionController} {
 
+  /*Create a line meter */
+  lmeter = lv_linemeter_create(lv_scr_act(), nullptr);
+  lv_obj_set_style_local_pad_top(lmeter,   LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 0);
+  lv_obj_set_style_local_pad_bottom(lmeter,   LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 0);
+  lv_obj_set_style_local_pad_left(lmeter,   LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 0);
+  lv_obj_set_style_local_pad_right(lmeter,   LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 0);
+  lv_obj_set_width_margin(lmeter, 0);
+  lv_obj_set_height_margin(lmeter, 0);
+  lv_obj_set_size(lmeter, 240, 240);
+  lv_obj_align(lmeter, nullptr, LV_ALIGN_CENTER, 0, 0);
+  lv_linemeter_set_range(lmeter, 0, 60); /*Set the range*/
+  lv_linemeter_set_value(lmeter, 30); /*Set the current value*/
+  lv_linemeter_set_angle_offset(lmeter, 180);
+  lv_linemeter_set_scale(lmeter, 360, 97); /*Set the angle and number of lines*/
+
+  lv_obj_set_style_local_scale_end_color(lmeter, LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, lv_color_make(255, 0, 0));
+  lv_obj_set_style_local_scale_grad_color(lmeter, LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, lv_color_make(160, 0, 0));
+  lv_obj_set_style_local_scale_end_line_width(lmeter, LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 2);
+  lv_obj_set_style_local_line_width(lmeter, LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, 2);
+  lv_obj_set_style_local_line_color(lmeter, LV_LINEMETER_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_SILVER);
+
+  taskRefresh = lv_task_create(RefreshTaskCallback, LV_DISP_DEF_REFR_PERIOD, LV_TASK_PRIO_MID, this);
+
   batteryIcon = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_text_fmt(batteryIcon, "B##%%");
   lv_obj_set_style_local_text_font(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &neofont1);
diff --git a/src/displayapp/screens/WatchFaceDigital.h b/src/displayapp/screens/WatchFaceDigital.h
index 8382996..aef486c 100644
--- a/src/displayapp/screens/WatchFaceDigital.h
+++ b/src/displayapp/screens/WatchFaceDigital.h
@@ -56,6 +56,9 @@ namespace Pinetime {
         DirtyValue<uint32_t> stepCount {};
         DirtyValue<bool> notificationState {};
 
+        lv_style_t  style_lmeter;
+        lv_obj_t*   lmeter;
+
         lv_obj_t* label_temp;
         lv_obj_t* label_time;
         lv_obj_t* label_time_sec;
diff --git a/src/libs/lv_conf.h b/src/libs/lv_conf.h
index dfec64a..cbaf64b 100644
--- a/src/libs/lv_conf.h
+++ b/src/libs/lv_conf.h
@@ -673,7 +673,7 @@ typedef void* lv_obj_user_data_t;
  * 1: Some extra precision
  * 2: Best precision
  */
-#define LV_LINEMETER_PRECISE    0
+#define LV_LINEMETER_PRECISE    2
 #endif
 
 /*Mask (dependencies: -)*/
-- 
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