Fixed cvpcb crash (only when compiled in Debug version)

cvpcb/displayframe.cpp

@@ -62,6 +62,12 @@ WinEDA_DisplayFrame::WinEDA_DisplayFrame( WinEDA_CvpcbFrame* father,
     SetBaseScreen( new PCB_SCREEN() );
 
     LoadSettings();
+
+    // Initialize some display options
+    DisplayOpt.DisplayPadIsol = false;      // Pad clearance has no meaning here
+    DisplayOpt.ShowTrackClearanceMode = 0;  // tracks and vias clearance has no meaning here
+
+
     SetSize( m_FramePos.x, m_FramePos.y, m_FrameSize.x, m_FrameSize.y );
     ReCreateHToolbar();
     ReCreateVToolbar();

cvpcb/loadcmp.cpp

@@ -119,7 +119,6 @@ found in the default search paths." ),
             if( stricmp( Name, CONV_TO_UTF8( CmpName ) ) == 0 )  /* composant localise */
             {
                 Module = new MODULE( GetBoard() );
-
                 // Switch the locale to standard C (needed to print floating point numbers like 1.3)
                 SetLocaleTo_C_standard();
                 Module->ReadDescr( file, &LineNum );

gerbview/gerbview.cpp

@@ -74,6 +74,10 @@ bool WinEDA_App::OnInit()
     frame->SetTitle( GetTitle() + wxT( " " ) + GetBuildVersion() );
     frame->SetBoard( new BOARD( NULL, frame ) );
 
+    // Initialize some display options
+    DisplayOpt.DisplayPadIsol = false;      // Pad clearance has no meaning here
+    DisplayOpt.ShowTrackClearanceMode = 0;  // tracks and vias clearance has no meaning here
+
     SetTopWindow( frame );              // Set GerbView mainframe on top
     frame->Show( TRUE );                // Show GerbView mainframe
     frame->Zoom_Automatique( TRUE );    // Zoomfit drawing in frame

pcbnew/class_board_connected_item.cpp

@@ -74,8 +74,8 @@ int BOARD_CONNECTED_ITEM::GetClearance( BOARD_CONNECTED_ITEM* aItem ) const
 {
     NETCLASS*   myclass  = GetNetClass();
 
-    wxASSERT( myclass );
-
+    // DO NOT use wxASSERT, because GetClearance is called inside an OnPaint event
+    // and a call to wxASSERT can crash the application.
     if( myclass )
     {
         // @todo : after GetNetClass() is reliably not returning NULL, remove the
@@ -84,18 +84,20 @@ int BOARD_CONNECTED_ITEM::GetClearance( BOARD_CONNECTED_ITEM* aItem ) const
         if( aItem )
         {
             NETCLASS*   hisclass = aItem->GetNetClass();
-            wxASSERT( hisclass );
-
             if( hisclass )
             {
                 int hisClearance = hisclass->GetClearance();
                 int myClearance  = myclass->GetClearance();
                 return max( hisClearance, myClearance );
             }
+            else
+                wxLogWarning(wxT("BOARD_CONNECTED_ITEM::GetClearance(): NULL hisclass") );
         }
 
         return myclass->GetClearance();
     }
+    else
+        wxLogWarning(wxT("BOARD_CONNECTED_ITEM::GetClearance(): NULL netclass") );
 
     return 0;
 }
@@ -105,20 +107,24 @@ NETCLASS* BOARD_CONNECTED_ITEM::GetNetClass() const
 {
     // It is important that this be implemented without any sequential searching.
     // Simple array lookups should be fine, performance-wise.
-
     BOARD*  board = GetBoard();
-    wxASSERT( board );
+    // DO NOT use wxASSERT, because GetNetClass is called inside an OnPaint event
+    // and a call to wxASSERT can crash the application.
     if( board )
     {
         NETINFO_ITEM* net = board->FindNet( GetNet() );
-        wxASSERT( net );
         if( net )
         {
             NETCLASS* netclass = net->GetNetClass();
-            wxASSERT( netclass );
+            if( netclass == NULL )
+                wxLogWarning(wxT("BOARD_CONNECTED_ITEM::GetNetClass(): NULL netclass") );
             return netclass;
         }
+        else
+            wxLogWarning(wxT("BOARD_CONNECTED_ITEM::GetNetClass(): NULL net") );
     }
+    else
+        wxLogWarning(wxT("BOARD_CONNECTED_ITEM::GetNetClass(): NULL board, type %d"), Type() );
 
     return NULL;
 }

pcbnew/class_pad_draw_functions.cpp

@@ -38,9 +38,6 @@ void D_PAD::Draw( WinEDA_DrawPanel* panel, wxDC* DC, int draw_mode, const wxPoin
     if( m_Flags & DO_NOT_DRAW )
         return;
 
-    wxASSERT( panel );
-
-
     WinEDA_BasePcbFrame* frame  = (WinEDA_BasePcbFrame*) panel->m_Parent;
     PCB_SCREEN*          screen = frame->GetScreen();
     if( frame->m_DisplayPadFill == FILLED )
@@ -205,9 +202,14 @@ void D_PAD::Draw( WinEDA_DrawPanel* panel, wxDC* DC, int draw_mode, const wxPoin
     if( ( m_Masque_Layer & ALL_CU_LAYERS ) == 0 )
         DisplayIsol = FALSE;
 
-    SetAlpha(&color, 170);
+    SetAlpha( &color, 170 );
 
-    int padClearance = GetClearance();
+    /* Get the pad clearance. This has a meaning only for Pcbnew.
+     *  for Cvpcb (and Gerbview) GetClearance() creates debug errors because there is no
+     *  net classes so a call to GetClearance() is made only when needed
+     *  (never needed in Cvpcb nor in Gerbview)
+     */
+    int padClearance =  DisplayIsol ? GetClearance() : 0;
 
     switch( GetShape() )
     {
@@ -423,7 +425,7 @@ void D_PAD::Draw( WinEDA_DrawPanel* panel, wxDC* DC, int draw_mode, const wxPoin
     wxPoint tpos  = tpos0;
     wxSize  AreaSize;                           // size of text area, normalized to AreaSize.y < AreaSize.x
     int     shortname_len = m_ShortNetname.Len();
-    if( ! display_netname )
+    if( !display_netname )
         shortname_len = 0;
     if( GetShape() == PAD_CIRCLE )
         angle = 0;
@@ -466,11 +468,13 @@ void D_PAD::Draw( WinEDA_DrawPanel* panel, wxDC* DC, int draw_mode, const wxPoin
         #define CHAR_SIZE_MIN 5
         if( screen->Scale( tsize ) >= CHAR_SIZE_MIN )       // Not drawable when size too small.
         {
-            tsize = (int) (tsize * 0.8);                // reserve room for marges and segments thickness
+            tsize = (int) ( tsize * 0.8 );                  // reserve room for marges and segments thickness
 
             DrawGraphicText( panel, DC, tpos,
-                             WHITE, buffer, t_angle, wxSize( tsize, tsize ),
-                             GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_CENTER, tsize / 7, false, false, false );
+                             WHITE, buffer, t_angle, wxSize( tsize,
+                                                             tsize ),
+                             GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_CENTER, tsize / 7, false,
+                             false, false );
         }
     }
 
@@ -483,14 +487,14 @@ void D_PAD::Draw( WinEDA_DrawPanel* panel, wxDC* DC, int draw_mode, const wxPoin
 
     if( screen->Scale( tsize ) >= CHAR_SIZE_MIN )   // Not drawable in size too small.
     {
-         if( !(!IsOnLayer( screen->m_Active_Layer )&& DisplayOpt.ContrastModeDisplay)){
-
+        if( !(!IsOnLayer( screen->m_Active_Layer )&& DisplayOpt.ContrastModeDisplay) )
+        {
             tpos = tpos0;
-        if ( display_padnum )
+            if( display_padnum )
                 tpos.y += AreaSize.y / 2;
             RotatePoint( &tpos, wxPoint( ux0, uy0 ), angle );
 
-        tsize = (int) (tsize * 0.8);         // reserve room for marges and segments thickness
+            tsize = (int) ( tsize * 0.8 );   // reserve room for marges and segments thickness
             DrawGraphicText( panel, DC, tpos,
                              WHITE, m_ShortNetname, t_angle, wxSize( tsize, tsize ),
                              GR_TEXT_HJUSTIFY_CENTER, GR_TEXT_VJUSTIFY_CENTER, tsize / 7,

polygon/PolyLine.cpp

@@ -481,7 +481,9 @@ int CPolyLine::MakeKboolPoly( int aStart_contour, int aEnd_contour, std::vector<
         }
 
         if( n_vertices != ivtx )
+        {
             wxASSERT( 0 );
+        }
 
         //  close list added to the bool engine
         booleng->EndPolygonAdd();
@@ -795,7 +797,9 @@ void CPolyLine::AppendCorner( int x, int y, int style, bool bDraw )
 void CPolyLine::Close( int style, bool bDraw )
 {
     if( GetClosed() )
+    {
         wxASSERT( 0 );
+    }
     Undraw();
     side_style[corner.size() - 1] = style;
     corner[corner.size() - 1].end_contour = TRUE;
@@ -1349,7 +1353,9 @@ void CPolyLine::Hatch()
 bool CPolyLine::TestPointInside( int px, int py )
 {
     if( !GetClosed() )
+    {
         wxASSERT( 0 );
+    }
 
     // define line passing through (x,y), with slope = 2/3;
     // get intersection points
@@ -1426,7 +1432,9 @@ bool CPolyLine::TestPointInsideContour( int icont, int px, int py )
     if( icont >= GetNumContours() )
         return FALSE;
     if( !GetClosed() )
+    {
         wxASSERT( 0 );
+    }
 
 // define line passing through (x,y), with slope = 2/3;
 // get intersection points