Add alarm details and only rerender status when it changes

main.cpp

@@ -34,6 +34,7 @@
 #include <nanogui/graph.h>
 #include <nanogui/tabwidget.h>
 #include <nanogui/texture.h>
+#include <nanogui/textarea.h>
 #include <nanogui/shader.h>
 #include <nanogui/renderpass.h>
 #include <iostream>
@@ -52,6 +53,7 @@
 #include <gtest/gtest.h>
 #include "grbl_communication.h"
 #include "machine.h"
+#include "string_utils.h"
 
 using namespace nanogui;
 
@@ -64,7 +66,7 @@ public:
     Window *window;
     grbl::jog_state jog;
     Label *m_pos_x, *m_pos_y, *m_pos_z;
-    TextBox *lblStatus, *lblSubstatus;
+    TextArea *lblStatus, *lblSubstatus;
     nanogui::Color red = nanogui::Color(255, 0, 0, 255);
     int last_alarm = 0;
 
@@ -80,8 +82,13 @@ public:
         Widget *status_holder = new Widget(window);
         status_holder->set_layout(new GridLayout());
 
-        lblStatus = new TextBox(window, grbl::status_to_string(cnc.get_status().status));
-        lblSubstatus = new TextBox(window, cnc.get_status().sub_status);
+        lblStatus = new TextArea(window);
+        lblStatus->set_fixed_height(20);
+        lblStatus->set_font("sans");
+
+        lblSubstatus = new TextArea(window);
+        lblSubstatus->set_font("sans");
+        lblSubstatus->set_fixed_height(50);
 
         // Machine pos
         new Label(window, "Machine pos", "sans-bold");
@@ -282,17 +289,34 @@ public:
     void on_disconnected() override {
     }
 
+
+    grbl::realtime_status_report last_report;
+
     void on_realtime_status_report(grbl::realtime_status_report report) override {
-        lblStatus->set_value(grbl::status_to_string(cnc.get_status().status) + "   ");
-        if (cnc.get_status().status == grbl::machine_status::alarm) {
-            lblSubstatus->set_value(grbl::alarm_to_string(last_alarm));
-        } else {
-            lblSubstatus->set_value(cnc.get_status().sub_status);
+        if (report == last_report) return;
+
+        if (last_report.status != report.status) {
+            lblStatus->clear();
+            lblStatus->append(grbl::status_to_string(cnc.get_status().status));
+
+            lblSubstatus->clear();
+            if (cnc.get_status().status == grbl::machine_status::alarm) {
+                lblSubstatus->append(grbl::alarm_to_string(last_alarm));
+//            auto lines = split_string(grbl::alarm_to_string(last_alarm), "\n");
+//            for (auto& l: lines) {
+//                lblSubstatus->append_line(trim(l));
+//            }
+            } else {
+                lblSubstatus->append(cnc.get_status().sub_status);
+            }
+
         }
 
         m_pos_x->set_caption(std::to_string(cnc.get_status().machine_pos[0]));
         m_pos_y->set_caption(std::to_string(cnc.get_status().machine_pos[1]));
         m_pos_z->set_caption(std::to_string(cnc.get_status().machine_pos[2]));
+
+        last_report = report;
     }
 
     void on_banner(std::string line) override {