fix: add workaround for turning all printheads on/offreality-check

1 files changed, 18 insertions, 9 deletions

diff --git a/jetting-interface/Main.qml b/jetting-interface/Main.qml
index cd69ed8..cd239bb 100644
--- a/jetting-interface/Main.qml
+++ b/jetting-interface/Main.qml
@@ -20,7 +20,8 @@ ApplicationWindow {
         for (let i = 1; i <= root.demoPhCount; ++i)
         phModel.append({
                            "phId": i,
-                           "versionInfo": ""
+                           "versionInfo": "",
+                           "valid": false
                        });
     }
 
@@ -54,16 +55,24 @@ ApplicationWindow {
                                      fpgaFirmwareVersion: string,
                                      fpgaHardwareVersion: string,
                                      bootloaderVersion: string) {
+            // A printhead is present only if it reports a non-zero version.
+            // Absent slots reply with all zeros; mcuHardwareVersion and
+            // mcuFirmwareVariant are "00" even on present heads, so they are
+            // excluded from the check (see docs/DISCREPANCIES.md).
+            let isZero = v => parseFloat(v) === 0 || v === "";
+            let valid = !(isZero(mcuFirmwareVersion) && isZero(fpgaFirmwareVersion)
+                          && isZero(fpgaHardwareVersion) && isZero(bootloaderVersion));
+            let info = valid ? "MCU %1/%2 (%3) | FPGA %4/%5 | Boot %6".arg(
+                                   mcuFirmwareVersion).arg(
+                                   mcuHardwareVersion).arg(
+                                   mcuFirmwareVariant).arg(
+                                   fpgaFirmwareVersion).arg(
+                                   fpgaHardwareVersion).arg(
+                                   bootloaderVersion) : "(Printhead unavailable)";
             for (let i = 0; i < phModel.count; ++i) {
                 if (phModel.get(i).phId === printheadId) {
-                    phModel.setProperty(i, "versionInfo",
-                                        "MCU %1/%2 (%3) | FPGA %4/%5 | Boot %6".arg(
-                                            mcuFirmwareVersion).arg(
-                                            mcuHardwareVersion).arg(
-                                            mcuFirmwareVariant).arg(
-                                            fpgaFirmwareVersion).arg(
-                                            fpgaHardwareVersion).arg(
-                                            bootloaderVersion));
+                    phModel.setProperty(i, "versionInfo", info);
+                    phModel.setProperty(i, "valid", valid);
                     break;
                 }
             }