**Fixed a crash in Pcbnew that happens sometimes when opening the design rules dialog editor.

Preparing 3D view autorefresh when editing a footprint in modedit (not yet working)

3d-viewer/3d_frame.cpp

@@ -33,6 +33,7 @@ double       DataScale3D; // 3D conversion units.
 
 
 BEGIN_EVENT_TABLE( WinEDA3D_DrawFrame, wxFrame )
+    EVT_ACTIVATE( WinEDA3D_DrawFrame::OnActivate )
     EVT_TOOL_RANGE( ID_ZOOM_IN, ID_ZOOM_PAGE, WinEDA3D_DrawFrame::Process_Zoom )
     EVT_TOOL_RANGE( ID_START_COMMAND_3D, ID_END_COMMAND_3D,
                     WinEDA3D_DrawFrame::Process_Special_Functions )
@@ -351,6 +352,18 @@ void WinEDA3D_DrawFrame::NewDisplay()
 }
 
 
+void WinEDA3D_DrawFrame::OnActivate( wxActivateEvent& event )
+{
+    // Reload data if 3D frame shows a footprint,
+    // because it can be changed since last frame activation
+    if( m_Parent->m_Ident == MODULE_EDITOR_FRAME )
+    {
+//        NewDisplay();
+    }
+    event.Skip();   // required under wxMAC
+}
+
+
 /* called to set the background color of the 3D scene
  */
 void WinEDA3D_DrawFrame::Set3DBgColor()

3d-viewer/3d_viewer.h

@@ -123,7 +123,7 @@ public:
     double    m_BoardScale;     /* Normalization scale for coordinates:
                                  * when scaled between -1.0 and +1.0 */
     double    m_LayerZcoord[32];
-	double	  m_ActZpos;	
+	double	  m_ActZpos;
 public: Info_3D_Visu();
     ~Info_3D_Visu();
 };
@@ -219,6 +219,7 @@ public:
     void RedrawActiveWindow( wxDC* DC, bool EraseBg );
     void Process_Special_Functions( wxCommandEvent& event );
     void Process_Zoom( wxCommandEvent& event );
+    void OnActivate( wxActivateEvent& event );
 
     void NewDisplay();
     void Set3DBgColor();

CHANGELOG.txt

@@ -4,6 +4,14 @@ KiCad ChangeLog 2010
 Please add newer entries at the top, list the date and your name with
 email address.
 
+2010-apr-29, UPDATE Jean-Pierre Charras <jean-pierre.charras@gipsa-lab.inpg.fr>
+================================================================================
+++Pcbnew:
+    Fixed a crash that happens sometimes when opening the design rule dialog.
+    (due to the sorting function by netclass then by netname)
+    The sorting by netclass then by netname is now working well.
+
+
 2010-apr-23, UPDATE Jean-Pierre Charras <jean-pierre.charras@gipsa-lab.inpg.fr>
 ================================================================================
 ++Pcbnew:

eeschema/class_libentry.cpp

@@ -241,7 +241,7 @@ wxString LIB_COMPONENT::ReturnSubReference( int aUnit )
  #if defined(KICAD_GOST)
     subRef.Printf( wxT(".%d" ), aUnit);
 #else
-    subRef.Append( aUnit + 'A' - 1 );
+    subRef.Append( wxChar(aUnit + 'A' - 1) );
 #endif
     return subRef;
 }

pcbnew/dialog_design_rules.cpp

@@ -290,12 +290,15 @@ void DIALOG_DESIGN_RULES::InitDimensionsLists()
 static bool sortByClassThenName( NETCUP* a, NETCUP* b )
 {
     // return a < b
-
     if( a->clazz < b->clazz )
         return true;
 
-    if( a->net < b->net )
-        return true;
+    // inside the same class, sort by net name:
+    if( a->clazz == b->clazz )
+    {
+        if( a->net < b->net )
+            return true;
+    }
 
     return false;
 }