qtplasmac: check for valid default material

Author: phillc54

share/qtvcp/screens/qtplasmac/qtplasmac_handler.py

@@ -1,4 +1,4 @@
-VERSION = '238.310'
+VERSION = '238.311'
 LCNCVER = '2.9'
 DOCSVER = LCNCVER
 
@@ -5015,6 +5015,9 @@ def load_material_file(self, keepTemp=False):
             self.write_materials_to_dict(mat)
         self.display_materials()
         self.defaultMaterial = self.PREFS.getpref('Default material', self.materialNumList[0], int, 'GUI_OPTIONS')
+        if not self.material_exists(self.defaultMaterial):
+            self.defaultMaterial = self.materialList[0]
+            self.PREFS.putpref('Default material', self.defaultMaterial, int, 'GUI_OPTIONS')
         self.change_material(self.defaultMaterial)
         self.w.materials_box.setCurrentIndex(self.materialList.index(self.defaultMaterial))
         self.w.material_selector.setCurrentIndex(self.w.materials_box.currentIndex())

share/qtvcp/screens/qtplasmac/versions.html

@@ -26,6 +26,11 @@ <h2>QtPlasmaC Version History - LinuxCNC 2.9</h2>
 </table>
 <br>
 <!--- ****** ADD NEXT VERSION BELOW THIS LINE ****** --->
+<br><b><u>238.311 2024 Mar 30</u></b>
+<ul style="margin:0;">
+  <li>check for valid default material</li>
+</ul>
+
 <br><b><u>238.310 2024 Mar 21</u></b>
 <ul style="margin:0;">
   <li>fix missing error message for invalid parameter in temporary material</li>