From 53ade61b136a302bb087bfb80901e03b656a5271 Mon Sep 17 00:00:00 2001
From: rkcf <rkcf@rkcf.me>
Date: Sat, 4 Feb 2023 22:41:22 -0600
Subject: [PATCH] Feat: add bpm label to gui

---
 main/esp32-sequencer.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/main/esp32-sequencer.c b/main/esp32-sequencer.c
index 7e4ec11..0458423 100644
--- a/main/esp32-sequencer.c
+++ b/main/esp32-sequencer.c
@@ -87,6 +87,7 @@ portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
 
 static const uint32_t DEFAULT_BPM = 120;
 static uint16_t current_bpm = DEFAULT_BPM;
+lv_obj_t * bpm_label = NULL;
 
 #define SEQ_MAX_LEN 8
 static uint8_t sequence[SEQ_MAX_LEN] = {0};
@@ -104,6 +105,10 @@ uint32_t ms_to_bpm(uint32_t ms) {
   return 60000 / ms;
 }
 
+static void update_bpm(void) {
+  lv_label_set_text_fmt(bpm_label, "BPM: %d", current_bpm);
+}
+
 // updates the sequence for the GUI display
 static void update_seq(uint8_t *sequence) {
   char seq_str[seq_len];
@@ -148,6 +153,7 @@ static void tap_tempo_handler(){
     ESP_ERROR_CHECK(gptimer_stop(tap_tempo_timer));
     ESP_ERROR_CHECK(gptimer_set_raw_count(tap_tempo_timer, 0));
     current_bpm = ms_to_bpm(count / 1000);
+    update_bpm();
     ESP_LOGI(TAG, "Stopping tap tempo monitoring at %" PRIu64 "ms", count / 1000);
   }
 }
@@ -434,13 +440,17 @@ static void gui_create(void) {
   lv_obj_add_style(title_label, &gui_style, LV_STATE_DEFAULT);
   lv_obj_align(title_label, LV_ALIGN_TOP_MID, 0, 5);
 
+  // Create and set BPM lable text
+  bpm_label = lv_label_create(lv_scr_act());
+  lv_label_set_text_fmt(bpm_label, "BPM: %d", current_bpm);
+  lv_obj_add_style(bpm_label, &gui_style, LV_STATE_DEFAULT);
+  lv_obj_align(bpm_label, LV_ALIGN_BOTTOM_LEFT, 5, -5);
+
   // Create sequence text area
   sequence_label = lv_label_create(lv_scr_act());
   lv_label_set_text(sequence_label, "oooooooo");
   lv_obj_add_style(sequence_label, &gui_style, LV_STATE_DEFAULT);
-
-  // Align label to center top
-  lv_obj_align(sequence_label, LV_ALIGN_TOP_LEFT, 0, 30);
+  lv_obj_align(sequence_label, LV_ALIGN_CENTER, 0, 0);
 }
 
 static void gui_task(void *pvParameter) {