From 69dfcd2ae694c5e94fc79c5608cc6529c5eff2f0 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Wed, 2 Aug 2017 23:59:41 +0200
Subject: [PATCH] add method to get ccx version and inform user in case of
 problems

---
 src/Mod/Fem/FemToolsCcx.py                    | 19 +++++++++++++++++++
 .../Fem/PyGui/_TaskPanelFemSolverCalculix.py  |  5 +++++
 2 files changed, 24 insertions(+)

diff --git a/src/Mod/Fem/FemToolsCcx.py b/src/Mod/Fem/FemToolsCcx.py
index b0ef18e771..68b5bc2eaa 100644
--- a/src/Mod/Fem/FemToolsCcx.py
+++ b/src/Mod/Fem/FemToolsCcx.py
@@ -202,6 +202,25 @@ class FemToolsCcx(FemTools.FemTools):
             return p.returncode
         return -1
 
+    def get_ccx_version(self):
+        import re
+        import subprocess
+        from platform import system
+        startup_info = None
+        if system() == "Windows":
+            # Windows workaround to avoid blinking terminal window
+            startup_info = subprocess.STARTUPINFO()
+            startup_info.dwFlags = subprocess.STARTF_USESHOWWINDOW
+        ccx_stdout = None
+        ccx_stderr = None
+        # Now extract the version number
+        p = subprocess.Popen([self.ccx_binary, '-v'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE, shell=False,
+                             startupinfo=startup_info)
+        ccx_stdout, ccx_stderr = p.communicate()
+        m = re.search(r"(\d+).(\d+)", ccx_stdout)
+        return (int(m.group(1)), int(m.group(2)))
+
     def run(self):
         ret_code = 0
         message = self.check_prerequisites()
diff --git a/src/Mod/Fem/PyGui/_TaskPanelFemSolverCalculix.py b/src/Mod/Fem/PyGui/_TaskPanelFemSolverCalculix.py
index 08d136e88a..625038319d 100644
--- a/src/Mod/Fem/PyGui/_TaskPanelFemSolverCalculix.py
+++ b/src/Mod/Fem/PyGui/_TaskPanelFemSolverCalculix.py
@@ -169,6 +169,11 @@ class _TaskPanelFemSolverCalculix:
             fea.load_results()
         except:
             QApplication.restoreOverrideCursor()
+            majorVersion, minorVersion = fea.get_ccx_version()
+            if majorVersion == 2 and minorVersion <= 10:
+                message = "The used CalculiX version {}.{} creates broken output files.\n" \
+                "Please upgrade to a newer version.".format(majorVersion, minorVersion)
+                QtGui.QMessageBox.warning(None, "Upgrade CalculiX", message)
             raise
         else:
             QApplication.restoreOverrideCursor()