Pcbnew: Fix a crash when reloading python scripts, when Kicad uses wxPython.

also, refresh the board editor action plugins menu, when reloading python scripts from the footprint wizard selector.

include/wxPcbStruct.h

@@ -139,9 +139,8 @@ protected:
     void OnActionPluginRefresh( wxCommandEvent& aEvent);
 #endif
 
-
-    // Has meaning only if DKICAD_SCRIPTING_WXPYTHON option is on
-    /**
+    /** Has meaning only if KICAD_SCRIPTING_WXPYTHON option is
+     * not defined
      * @return the frame name identifier for the python console frame
      */
     static const wxChar * pythonConsoleNameId()
@@ -249,6 +248,13 @@ public:
 
     void OnQuit( wxCommandEvent& event );
 
+    /**
+     * Reload the Python plugins if they are newer than
+     * the already loaded, and load new plugins if any
+     * Do nothing if KICAD_SCRIPTING is not defined
+     */
+    void PythonPluginsReload();
+
     /**
      * Function GetAutoSaveFilePrefix
      *

pcbnew/dialogs/dialog_footprint_wizard_list.cpp

@@ -33,6 +33,7 @@
 #include <kiface_i.h>
 #include <dialog_footprint_wizard_list.h>
 #include <class_footprint_wizard.h>
+#include <footprint_wizard_frame.h>
 
 #if defined(KICAD_SCRIPTING) || defined(KICAD_SCRIPTING_WXPYTHON)
 #include <python_scripting.h>
@@ -150,13 +151,9 @@ void DIALOG_FOOTPRINT_WIZARD_LIST::initLists()
 
 void DIALOG_FOOTPRINT_WIZARD_LIST::onUpdatePythonModulesClick( wxCommandEvent& event )
 {
-#if defined(KICAD_SCRIPTING) || defined(KICAD_SCRIPTING_WXPYTHON)
-    char cmd[1024];
-    snprintf( cmd, sizeof(cmd),
-              "pcbnew.LoadPlugins(\"%s\")", TO_UTF8( PyScriptingPath() ) );
-    PyLOCK lock;
-    // ReRun the Python method pcbnew.LoadPlugins (already called when starting Pcbnew)
-    PyRun_SimpleString( cmd );
+#if defined(KICAD_SCRIPTING)
+    FOOTPRINT_WIZARD_FRAME* fpw_frame = static_cast<FOOTPRINT_WIZARD_FRAME*>( GetParent() );
+    fpw_frame->PythonPluginsReload();
 
     initLists();
 #endif

pcbnew/footprint_wizard_frame.cpp

@@ -720,6 +720,30 @@ void FOOTPRINT_WIZARD_FRAME::ReCreateVToolbar()
     // Currently, there is no vertical toolbar
 }
 
+#if defined(KICAD_SCRIPTING)
+#include <python_scripting.h>
+void FOOTPRINT_WIZARD_FRAME::PythonPluginsReload()
+{
+    // Reload the Python plugins
+    // Because the board editor has also a plugin python menu,
+    // call PCB_EDIT_FRAME::PythonPluginsReload() if the board editor
+    // is running
+    PCB_EDIT_FRAME* brd_frame =
+        static_cast<PCB_BASE_FRAME*>( Kiway().Player( FRAME_PCB, false ) );
+
+    if( brd_frame )
+        brd_frame->PythonPluginsReload();
+    else
+    {
+        char cmd[1024];
+        snprintf( cmd, sizeof(cmd),
+                  "pcbnew.LoadPlugins(\"%s\")", TO_UTF8( PyScriptingPath() ) );
+        PyLOCK lock;
+        // ReRun the Python method pcbnew.LoadPlugins (already called when starting Pcbnew)
+        PyRun_SimpleString( cmd );
+    }
+}
+#endif
 
 // frame to display messages from footprint builder scripts
 FOOTPRINT_WIZARD_MESSAGES::FOOTPRINT_WIZARD_MESSAGES( FOOTPRINT_WIZARD_FRAME* aParent, wxConfigBase* aCfg ) :

pcbnew/footprint_wizard_frame.h

@@ -74,6 +74,13 @@ public:
 
     MODULE*             GetBuiltFootprint();
 
+    /**
+     * Reload the Python plugins if they are newer than
+     * the already loaded, and load new plugins if any
+     * Do nothing if KICAD_SCRIPTING is not defined
+     */
+    void PythonPluginsReload();
+
 private:
 
     void                OnSize( wxSizeEvent& event ) override;

pcbnew/pcbframe.cpp

@@ -1,10 +1,10 @@
 /*
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
- * Copyright (C) 2013 Jean-Pierre Charras, jp.charras at wanadoo.fr
+ * Copyright (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
  * Copyright (C) 2013 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
  * Copyright (C) 2013-2016 Wayne Stambaugh <stambaughw@verizon.net>
- * Copyright (C) 2013-2016 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 2013-2017 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -1056,7 +1056,6 @@ void PCB_EDIT_FRAME::ScriptingConsoleEnableDisable( wxCommandEvent& aEvent )
     else
         wxMessageBox( wxT( "Error: unable to create the Python Console" ) );
 }
-
 #endif
 
 
@@ -1159,3 +1158,26 @@ void PCB_EDIT_FRAME::OnFlipPcbView( wxCommandEvent& evt )
     view->RecacheAllItems();
     Refresh();
 }
+
+void PCB_EDIT_FRAME::PythonPluginsReload()
+{
+    // Reload plugin list: reload Python plugins if they are newer than
+    // the already loaded, and load new plugins
+#if defined(KICAD_SCRIPTING)
+    //Reload plugin list: reload Python plugins if they are newer than
+    // the already loaded, and load new plugins
+    char cmd[1024];
+
+    snprintf( cmd, sizeof(cmd),
+            "pcbnew.LoadPlugins(\"%s\")", TO_UTF8( PyScriptingPath() ) );
+
+    PyLOCK lock;
+
+    // ReRun the Python method pcbnew.LoadPlugins (already called when starting Pcbnew)
+    PyRun_SimpleString( cmd );
+
+    #if defined(KICAD_SCRIPTING_ACTION_MENU)
+        RebuildActionPluginMenus();
+    #endif
+#endif
+}

pcbnew/swig/pcbnew_action_plugins.cpp

@@ -199,16 +199,7 @@ void PCB_EDIT_FRAME::OnActionPlugin( wxCommandEvent& aEvent )
 
 void PCB_EDIT_FRAME::OnActionPluginRefresh( wxCommandEvent& aEvent )
 {
-    char cmd[1024];
-
-    snprintf( cmd, sizeof(cmd),
-            "pcbnew.LoadPlugins(\"%s\")", TO_UTF8( PyScriptingPath() ) );
-
-    PyLOCK lock;
-    // ReRun the Python method pcbnew.LoadPlugins (already called when starting Pcbnew)
-    PyRun_SimpleString( cmd );
-
-    RebuildActionPluginMenus();
+   PythonPluginsReload();
 }
 
 

pcbnew/swig/python_scripting.h

@@ -73,10 +73,14 @@ void        pcbnewGetScriptsSearchPaths( wxString& aNames );
 void        pcbnewGetWizardsBackTrace( wxString& aNames );
 
 #ifdef KICAD_SCRIPTING_WXPYTHON
-
 void        RedirectStdio();
 wxWindow*   CreatePythonShellWindow( wxWindow* parent, const wxString& aFramenameId );
+#endif
+
 
+#if 0 && defined (KICAD_SCRIPTING_WXPYTHON)
+// This definition of PyLOCK crashed Pcbnew under some conditions (JPC),
+// especially reloading plugins
 class PyLOCK
 {
     wxPyBlock_t b;