Pcbnew: avoid crash when closing pcbnew if the DRC dialog is open.

Cvpcb: change from commit 9ceca583:
the root class close event that save settings is now seeing the close event.

cvpcb/cvpcb_mainframe.cpp

@@ -320,15 +320,9 @@ void CVPCB_MAINFRAME::OnCloseWindow( wxCloseEvent& Event )
     // clear highlight symbol in schematic:
     SendMessageToEESCHEMA( true );
 
-    // Save config. Because the wxCloseEvent is captured,
-    // the EDA_BASE_FRAME will not see the event and will not save the config.
-    wxConfigBase* cfg = config();
-
-    if( cfg )
-        SaveSettings( cfg );
-
-    // Delete window
-    Destroy();
+    // Skip the close event. Looks like needed to have the close event sent to the
+    // root class EDA_BASE_FRAME, and save config
+    Event.Skip();
 }
 
 

pcbnew/dialogs/dialog_drc.cpp

@@ -56,6 +56,8 @@ DIALOG_DRC_CONTROL::DIALOG_DRC_CONTROL( DRC* aTester, PCB_EDIT_FRAME* aEditorFra
     m_uviaMinSize( aEditorFrame, m_MicroViaMinTitle, m_SetMicroViakMinSizeCtrl,
                    m_MicroViaMinUnit, true )
 {
+    SetName( DIALOG_DRC_WINDOW_NAME );  // Set a window name to be able to find it
+
     m_config = Kiface().KifaceSettings();
     m_tester = aTester;
     m_brdEditor = aEditorFrame;

pcbnew/dialogs/dialog_drc.h

@@ -46,6 +46,7 @@ class BOARD_DESIGN_SETTINGS;
 /*!
  * DrcDialog class declaration
  */
+#define DIALOG_DRC_WINDOW_NAME "DialogDrcWindowName"
 
 class DIALOG_DRC_CONTROL: public DIALOG_DRC_CONTROL_BASE
 {

pcbnew/footprint_edit_frame.cpp

@@ -461,8 +461,8 @@ void FOOTPRINT_EDIT_FRAME::OnCloseWindow( wxCloseEvent& Event )
 
     Clear_Pcb( false );
 
-    //close the editor
-    Destroy();
+    // Close the editor
+    Event.Skip();
 }
 
 

pcbnew/pcb_edit_frame.cpp

@@ -85,6 +85,7 @@
 #include <netlist_reader.h>
 #include <pcb_netlist.h>
 #include <wx/wupdlock.h>
+#include <dialog_drc.h>     // for DIALOG_DRC_WINDOW_NAME definition
 
 #if defined(KICAD_SCRIPTING) || defined(KICAD_SCRIPTING_WXPYTHON)
 #include <python_scripting.h>
@@ -460,6 +461,15 @@ void PCB_EDIT_FRAME::OnQuit( wxCommandEvent& event )
 
 void PCB_EDIT_FRAME::OnCloseWindow( wxCloseEvent& Event )
 {
+    // First close the DRC dialog.
+    // For some reason, if the board editor frame is destroyed when the DRC
+    // dialog currently open, Pcbnew crashes, At least on Windows.
+    DIALOG_DRC_CONTROL* open_dlg = static_cast<DIALOG_DRC_CONTROL*>(
+                                        wxWindow::FindWindowByName( DIALOG_DRC_WINDOW_NAME ) );
+
+    if( open_dlg )
+        open_dlg->Close( true );
+
     if( GetScreen()->IsModify() && !GetBoard()->IsEmpty() )
     {
         wxFileName fileName = GetBoard()->GetFileName();
@@ -518,7 +528,8 @@ void PCB_EDIT_FRAME::OnCloseWindow( wxCloseEvent& Event )
     // want any paint event
     Show( false );
 
-    Destroy();
+    // Close frame:
+    Event.Skip();
 }