Add alarm details and only rerender status when it changes

grbl_machine.cpp

@@ -121,9 +121,9 @@ std::string grbl::status_to_string(const grbl::machine_status& status) {
 std::string grbl::alarm_to_string(int alarm) {
     switch (alarm) {
         case 1:
-            return "Hard limit has been triggered. Machine position is likely lost due to sudden halt. Re-homing is highly recommended.";
+            return "Hard limit has been triggered.\nMachine position is likely lost due to sudden halt.\nRe-homing is highly recommended.";
         case 2:
-            return "Soft limit alarm. G-code motion target exceeds machine travel. Machine position retained. Alarm may be safely unlocked.";
+            return "Soft limit alarm. G-code motion target exceeds\nmachine travel. Machine position retained.\nAlarm may be safely unlocked.";
         case 3:
             return "Reset while in motion. Machine position is likely lost due to sudden halt. Re-homing is highly recommended.";
         case 4:

machine.h

@@ -46,6 +46,19 @@ struct realtime_status_report {
     std::string firmware;
 };
 
+inline bool operator==(const realtime_status_report& a, const realtime_status_report& b) {
+    return (a.status == b.status &&
+            a.sub_status == b.sub_status &&
+            a.machine_pos[0] == b.machine_pos[0] &&
+            a.machine_pos[1] == b.machine_pos[1] &&
+            a.machine_pos[2] == b.machine_pos[2] &&
+            a.work_pos[0] == b.work_pos[0] &&
+            a.work_pos[1] == b.work_pos[1] &&
+            a.work_pos[2] == b.work_pos[2] &&
+            true
+    );
+}
+
 realtime_status_report parse_status_report(std::string line, grbl::realtime_status_report& result);
 
 enum class grbl_machine_state {

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 (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->set_value(grbl::alarm_to_string(last_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->set_value(cnc.get_status().sub_status);
+                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 {

string_utils.h

@@ -3,7 +3,7 @@
 #include <vector>
 #include <string>
 
-std::vector<std::string> split_string(const std::string& in, const std::string& delimiter) {
+inline std::vector<std::string> split_string(const std::string& in, const std::string& delimiter) {
     std::vector<std::string> result{};
     size_t last{0}, next;
     while ((next = in.find(delimiter, last)) != std::string::npos) {
@@ -14,30 +14,30 @@ std::vector<std::string> split_string(const std::string& in, const std::string&
     return result;
 }
 
-std::string& ltrim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string& ltrim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
     str.erase(0, str.find_first_not_of(chars));
     return str;
 }
 
-std::string ltrim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string ltrim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
     str.erase(0, str.find_first_not_of(chars));
     return str;
 }
 
-std::string& rtrim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string& rtrim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
     str.erase(str.find_last_not_of(chars) + 1);
     return str;
 }
 
-std::string rtrim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string rtrim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
     str.erase(str.find_last_not_of(chars) + 1);
     return str;
 }
 
-std::string& trim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string& trim(std::string& str, const std::string& chars = "\t\n\v\f\r ") {
     return ltrim(rtrim(str, chars), chars);
 }
 
-std::string trim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
+inline std::string trim(std::string&& str, const std::string& chars = "\t\n\v\f\r ") {
     return ltrim(rtrim(str, chars), chars);
 }