From dcf32d6685227e724a115e23314b8049fa5fd16e Mon Sep 17 00:00:00 2001
From: suchmememanyskill <38142618+suchmememanyskill@users.noreply.github.com>
Date: Fri, 16 Feb 2024 23:09:32 +0100
Subject: [PATCH] Fix temp chart crashing

---
 CYD-Klipper/src/ui/panels/temp_panel.cpp | 28 +++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/CYD-Klipper/src/ui/panels/temp_panel.cpp b/CYD-Klipper/src/ui/panels/temp_panel.cpp
index 834a576..2a2e89d 100644
--- a/CYD-Klipper/src/ui/panels/temp_panel.cpp
+++ b/CYD-Klipper/src/ui/panels/temp_panel.cpp
@@ -207,6 +207,31 @@ static void btn_retract(lv_event_t * e){
     send_gcode(true, "G1 E-25 F300");
 }
 
+static void set_chart_range(lv_event_t * e) {
+    lv_obj_t * chart = lv_event_get_target(e);
+
+    int max_temp = 0;
+
+    if (printer.extruder_target_temp > max_temp)
+        max_temp = printer.extruder_target_temp;
+
+    if (printer.bed_target_temp > max_temp)
+        max_temp = printer.bed_target_temp;
+
+    if (printer.extruder_temp > max_temp)
+        max_temp = printer.extruder_temp;
+
+    if (printer.bed_temp > max_temp)
+        max_temp = printer.bed_temp;
+
+    int range = ((max_temp + 49) / 50) * 50;
+
+    if (range < 100)
+        range = 100;
+    
+    lv_chart_set_range(chart, LV_CHART_AXIS_PRIMARY_Y, 0, range);
+}
+
 static void set_hotend_temp_chart(lv_event_t * e){
     lv_obj_t * chart = lv_event_get_target(e);
     lv_chart_series_t * series = (lv_chart_series_t *)lv_event_get_user_data(e);
@@ -251,7 +276,7 @@ void temp_panel_init(lv_obj_t * panel){
     lv_chart_set_point_count(chart, 120);
     lv_obj_set_style_size(chart, 0, LV_PART_INDICATOR);
     lv_chart_set_axis_tick(chart, LV_CHART_AXIS_PRIMARY_Y, CYD_SCREEN_GAP_PX / 2, CYD_SCREEN_GAP_PX / 4, 4, 3, true, CYD_SCREEN_MIN_BUTTON_WIDTH_PX);
-    lv_chart_set_range(chart, LV_CHART_AXIS_PRIMARY_Y, 0, 300);
+    lv_chart_set_update_mode(chart, LV_CHART_UPDATE_MODE_SHIFT);
 
     lv_chart_series_t * ser1 = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_ORANGE), LV_CHART_AXIS_PRIMARY_Y);
     lv_chart_series_t * ser2 = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_RED), LV_CHART_AXIS_PRIMARY_Y);
@@ -262,6 +287,7 @@ void temp_panel_init(lv_obj_t * panel){
     lv_obj_add_event_cb(chart, set_hotend_temp_chart, LV_EVENT_MSG_RECEIVED, ser2);
     lv_obj_add_event_cb(chart, set_bed_target_temp_chart, LV_EVENT_MSG_RECEIVED, ser3);
     lv_obj_add_event_cb(chart, set_bed_temp_chart, LV_EVENT_MSG_RECEIVED, ser4);
+    lv_obj_add_event_cb(chart, set_chart_range, LV_EVENT_MSG_RECEIVED, NULL);
     lv_msg_subscribe_obj(DATA_PRINTER_DATA, chart, NULL);
 
     lv_obj_t * single_screen_panel = lv_create_empty_panel(root_temp_panel);