Try to fix Bug #1431765 (Pcbnew crashes in GAL when entering 3d display when a...

Try to fix Bug #1431765 (Pcbnew crashes in GAL when entering 3d display when a board outline is not closed)
This change modify the way warning messages are displayed: now the are displayed outside a paint event.

3d-viewer/3d_canvas.h

@@ -132,9 +132,11 @@ public:
     /**
      * Function CreateDrawGL_List
      * Prepares the parameters of the OpenGL draw list
-     * creates the OpenGL draw list items (board, grid ...
+     * creates the OpenGL draw list items (board, grid ...)
+     * @param aErrorMessages = a wxString which will filled with error messages,
+     * if any
      */
-    void   CreateDrawGL_List();
+    void   CreateDrawGL_List( wxString* aErrorMessages );
     void   InitGL();
     void   SetLights();
 
@@ -209,15 +211,17 @@ private:
      * Called by CreateDrawGL_List()
      * Populates the OpenGL GL_ID_BOARD draw list with board items only on copper layers.
      * 3D footprint shapes, tech layers and aux layers are not on this list
+     * Fills aErrorMessages with error messages created by some calculation function
      */
-    void   BuildBoard3DView(GLuint aBoardList, GLuint aBodyOnlyList);
+    void   BuildBoard3DView(GLuint aBoardList, GLuint aBodyOnlyList, wxString* aErrorMessages );
 
     /**
      * Function BuildTechLayers3DView
      * Called by CreateDrawGL_List()
      * Populates the OpenGL GL_ID_TECH_LAYERS draw list with items on tech layers
+     * Add error messages in aErrorMessages, if any
      */
-    void   BuildTechLayers3DView();
+    void   BuildTechLayers3DView( wxString* aErrorMessages );
 
     /**
      * Function BuildShadowList
@@ -301,7 +305,7 @@ private:
                                std::vector<S3D_MODEL_PARSER *>& model_parsers_list,
                                std::vector<wxString>& model_filename_list );
 
-    void   GenerateFakeShadowsTextures();
+    void   GenerateFakeShadowsTextures( wxString* aErrorMessages );
 
     DECLARE_EVENT_TABLE()
 };

3d-viewer/3d_draw.cpp

@@ -160,7 +160,7 @@ void EDA_3D_CANVAS::Create_and_Render_Shadow_Buffer( GLuint *aDst_gl_texture,
 
 #define SHADOW_BOARD_SCALE 1.5f
 
-void EDA_3D_CANVAS::GenerateFakeShadowsTextures()
+void EDA_3D_CANVAS::GenerateFakeShadowsTextures( wxString* aErrorMessages )
 {
     if( m_shadow_init == true )
     {
@@ -168,7 +168,7 @@ void EDA_3D_CANVAS::GenerateFakeShadowsTextures()
     }
 
     // Init info 3d parameters and create gl lists:
-    CreateDrawGL_List();
+    CreateDrawGL_List( aErrorMessages );
 
     m_shadow_init = true;
 
@@ -225,6 +225,8 @@ void EDA_3D_CANVAS::Redraw()
     if( !IsShown() )
         return;
 
+    wxString errorMessages;
+
     SetCurrent( *m_glRC );
 
     // Set the OpenGL viewport according to the client size of this canvas.
@@ -240,7 +242,7 @@ void EDA_3D_CANVAS::Redraw()
     if( isEnabled( FL_MODULE ) && isRealisticMode() &&
         isEnabled( FL_RENDER_SHADOWS ) )
     {
-        GenerateFakeShadowsTextures();
+        GenerateFakeShadowsTextures( &errorMessages );
     }
 
     // *MUST* be called *after*  SetCurrent( ):
@@ -336,7 +338,7 @@ void EDA_3D_CANVAS::Redraw()
 
 
     if( ! m_glLists[GL_ID_BOARD] || ! m_glLists[GL_ID_TECH_LAYERS] )
-        CreateDrawGL_List();
+        CreateDrawGL_List( &errorMessages );
 
     if( isEnabled( FL_AXIS ) && m_glLists[GL_ID_AXIS] )
         glCallList( m_glLists[GL_ID_AXIS] );
@@ -352,7 +354,7 @@ void EDA_3D_CANVAS::Redraw()
     if( isEnabled( FL_MODULE ) )
     {
         if( ! m_glLists[GL_ID_3DSHAPES_SOLID_FRONT] )
-            CreateDrawGL_List();
+            CreateDrawGL_List( &errorMessages );
     }
 
     glEnable( GL_BLEND );
@@ -402,7 +404,7 @@ void EDA_3D_CANVAS::Redraw()
     if( isEnabled( FL_COMMENTS ) || isEnabled( FL_COMMENTS )  )
     {
         if( ! m_glLists[GL_ID_AUX_LAYERS] )
-            CreateDrawGL_List();
+            CreateDrawGL_List( &errorMessages );
 
         glCallList( m_glLists[GL_ID_AUX_LAYERS] );
     }
@@ -450,7 +452,7 @@ void EDA_3D_CANVAS::Redraw()
     if( isEnabled( FL_MODULE ) )
     {
         if( ! m_glLists[GL_ID_3DSHAPES_SOLID_FRONT] )
-            CreateDrawGL_List();
+            CreateDrawGL_List( &errorMessages );
 
         glCallList( m_glLists[GL_ID_3DSHAPES_SOLID_FRONT] );
     }
@@ -492,6 +494,9 @@ void EDA_3D_CANVAS::Redraw()
     }
 
     SwapBuffers();
+
+    if( !errorMessages.IsEmpty() )
+        wxLogMessage( errorMessages );
 }
 
 
@@ -571,7 +576,8 @@ void EDA_3D_CANVAS::BuildShadowList( GLuint aFrontList, GLuint aBacklist, GLuint
 }
 
 
-void EDA_3D_CANVAS::BuildBoard3DView( GLuint aBoardList, GLuint aBodyOnlyList )
+void EDA_3D_CANVAS::BuildBoard3DView( GLuint aBoardList, GLuint aBodyOnlyList,
+                                      wxString* aErrorMessages  )
 {
     BOARD* pcb = GetBoard();
 
@@ -609,10 +615,12 @@ void EDA_3D_CANVAS::BuildBoard3DView( GLuint aBoardList, GLuint aBodyOnlyList )
 
     if( !pcb->GetBoardPolygonOutlines( bufferPcbOutlines, allLayerHoles, &msg ) )
     {
-        msg << wxT("\n\n") <<
+        if( aErrorMessages )
+        {
+            *aErrorMessages << msg << wxT("\n") <<
                 _("Unable to calculate the board outlines.\n"
-              "Therefore use the board boundary box.");
-        wxMessageBox( msg );
+                  "Therefore use the board boundary box.") << wxT("\n\n");
+        }
     }
 
     CPOLYGONS_LIST  bufferZonesPolys;
@@ -878,7 +886,7 @@ void EDA_3D_CANVAS::BuildBoard3DView( GLuint aBoardList, GLuint aBodyOnlyList )
 }
 
 
-void EDA_3D_CANVAS::BuildTechLayers3DView()
+void EDA_3D_CANVAS::BuildTechLayers3DView( wxString* aErrorMessages )
 {
     BOARD* pcb = GetBoard();
     bool useTextures = isRealisticMode() && isEnabled( FL_RENDER_TEXTURES );
@@ -899,15 +907,23 @@ void EDA_3D_CANVAS::BuildTechLayers3DView()
     allLayerHoles.reserve( 20000 );
 
     CPOLYGONS_LIST  bufferPcbOutlines;          // stores the board main outlines
+
     // Build a polygon from edge cut items
     wxString msg;
 
     if( !pcb->GetBoardPolygonOutlines( bufferPcbOutlines, allLayerHoles, &msg ) )
     {
-        msg << wxT("\n\n") <<
+#if 0
+        // Usually this message is already shown when the  copper layers are built
+        // So do not show it twice.
+        // TODO: display it only if when copper layers are not built
+        if( aErrorMessages )
+        {
+            *aErrorMessages << msg << wxT("\n") <<
                 _("Unable to calculate the board outlines.\n"
-              "Therefore use the board boundary box.");
-        wxMessageBox( msg );
+                  "Therefore use the board boundary box.") << wxT("\n\n");
+        }
+#endif
     }
 
     int thickness = GetPrm3DVisu().GetCopperThicknessBIU();
@@ -1194,7 +1210,7 @@ void EDA_3D_CANVAS::BuildBoard3DAuxLayers()
     }
 }
 
-void EDA_3D_CANVAS::CreateDrawGL_List()
+void EDA_3D_CANVAS::CreateDrawGL_List( wxString* aErrorMessages)
 {
     BOARD* pcb = GetBoard();
 
@@ -1232,7 +1248,7 @@ void EDA_3D_CANVAS::CreateDrawGL_List()
     {
         m_glLists[GL_ID_BOARD] = glGenLists( 1 );
         m_glLists[GL_ID_BODY] = glGenLists( 1 );
-        BuildBoard3DView(m_glLists[GL_ID_BOARD], m_glLists[GL_ID_BODY]);
+        BuildBoard3DView(m_glLists[GL_ID_BOARD], m_glLists[GL_ID_BODY], aErrorMessages );
         CheckGLError( __FILE__, __LINE__ );
     }
 
@@ -1240,7 +1256,7 @@ void EDA_3D_CANVAS::CreateDrawGL_List()
     {
         m_glLists[GL_ID_TECH_LAYERS] = glGenLists( 1 );
         glNewList( m_glLists[GL_ID_TECH_LAYERS], GL_COMPILE );
-        BuildTechLayers3DView();
+        BuildTechLayers3DView( aErrorMessages );
         glEndList();
         CheckGLError( __FILE__, __LINE__ );
     }

3d-viewer/3d_frame.cpp

@@ -626,9 +626,10 @@ void EDA_3D_FRAME::NewDisplay( int aGlList )
     m_reloadRequest = false;
 
     m_canvas->ClearLists( aGlList );
-    m_canvas->CreateDrawGL_List();
 
+    // Rebuild the 3D board and refresh the view:
     m_canvas->Refresh( true );
+
     m_canvas->DisplayStatus();
 }
 

pcbnew/specctra_export.cpp

@@ -1336,13 +1336,18 @@ bool SPECCTRA_DB::GetBoardPolygonOutlines( BOARD* aBoard,
         // Creates a valid polygon outline is not possible.
         // So uses the board edge cuts bounding box to create a
         // rectangular outline
-        // (when no edge cuts items, fillBOUNDARY biuld n outline
+        // (when no edge cuts items, fillBOUNDARY build a contour
         // from global bounding box
         success = false;
         if( aErrorText )
             *aErrorText = ioe.errorText;
 
         EDA_RECT bbbox = aBoard->ComputeBoundingBox( true );
+
+        // Ensure non null area. If happen, gives a minimal size.
+        if( ( bbbox.GetWidth() ) == 0 || ( bbbox.GetHeight() == 0 ) )
+            bbbox.Inflate( Millimeter2iu( 1.0 ) );
+
         corner.x = bbbox.GetOrigin().x;
         corner.y = bbbox.GetOrigin().y;
         aOutlines.Append( corner );