FEM: Ensure post task dialogs work without VTK python build

src/Mod/Fem/Gui/ViewProviderFemPostFilter.cpp

@@ -31,8 +31,10 @@
 #include "TaskPostBoxes.h"
 #include "ViewProviderFemPostFilter.h"
 #include "ViewProviderFemPostFilterPy.h"
-#include "TaskPostExtraction.h"
 
+#ifdef FC_USE_VTK_PYTHON
+#include "TaskPostExtraction.h"
+#endif
 
 using namespace FemGui;
 
@@ -91,9 +93,11 @@ void ViewProviderFemPostDataAlongLine::setupTaskDialog(TaskDlgPost* dlg)
     auto panel = new TaskPostDataAlongLine(this);
     dlg->addTaskBox(panel->getIcon(), panel);
 
+#ifdef FC_USE_VTK_PYTHON
     // and the extraction
     auto extr_panel = new TaskPostExtraction(this);
     dlg->addTaskBox(extr_panel->windowIcon().pixmap(32), extr_panel);
+#endif
 }
 
 
@@ -144,9 +148,11 @@ void ViewProviderFemPostDataAtPoint::setupTaskDialog(TaskDlgPost* dlg)
     auto panel = new TaskPostDataAtPoint(this);
     dlg->addTaskBox(panel->getIcon(), panel);
 
+#ifdef FC_USE_VTK_PYTHON
     // and the extraction
     auto extr_panel = new TaskPostExtraction(this);
     dlg->addTaskBox(extr_panel->windowIcon().pixmap(32), extr_panel);
+#endif
 }
 
 

src/Mod/Fem/Gui/ViewProviderFemPostFilterPyImp.cpp

@@ -27,7 +27,9 @@
 #include <Gui/PythonWrapper.h>
 #include "ViewProviderFemPostFilter.h"
 #include "TaskPostBoxes.h"
+#ifdef FC_USE_VTK_PYTHON
 #include "TaskPostExtraction.h"
+#endif
 // inclusion of the generated files (generated out of ViewProviderFemPostFilterPy.xml)
 #include "ViewProviderFemPostFilterPy.h"
 #include "ViewProviderFemPostFilterPy.cpp"
@@ -63,6 +65,7 @@ PyObject* ViewProviderFemPostFilterPy::createDisplayTaskWidget(PyObject* args)
 
 PyObject* ViewProviderFemPostFilterPy::createExtractionTaskWidget(PyObject* args)
 {
+#ifdef FC_USE_VTK_PYTHON
     // we take no arguments
     if (!PyArg_ParseTuple(args, "")) {
         return nullptr;
@@ -77,6 +80,10 @@ PyObject* ViewProviderFemPostFilterPy::createExtractionTaskWidget(PyObject* args
 
     PyErr_SetString(PyExc_TypeError, "creating the panel failed");
     return nullptr;
+#else
+    PyErr_SetString(PyExc_NotImplementedError, "VTK python wrapper not available");
+    Py_Return;
+#endif
 }
 
 PyObject* ViewProviderFemPostFilterPy::getCustomAttributes(const char* /*attr*/) const

src/Mod/Fem/Gui/ViewProviderFemPostObject.cpp

@@ -67,7 +67,9 @@
 #include <Mod/Fem/App/FemPostFilter.h>
 
 #include "TaskPostBoxes.h"
+#ifdef FC_USE_VTK_PYTHON
 #include "TaskPostExtraction.h"
+#endif
 #include "ViewProviderAnalysis.h"
 #include "ViewProviderFemPostObject.h"
 
@@ -1024,8 +1026,10 @@ void ViewProviderFemPostObject::setupTaskDialog(TaskDlgPost* dlg)
     auto disp_panel = new TaskPostDisplay(this);
     dlg->addTaskBox(disp_panel->windowIcon().pixmap(32), disp_panel);
 
+#ifdef FC_USE_VTK_PYTHON
     auto extr_panel = new TaskPostExtraction(this);
     dlg->addTaskBox(extr_panel->windowIcon().pixmap(32), extr_panel);
+#endif
 }
 
 void ViewProviderFemPostObject::unsetEdit(int ModNum)