Pcbnew auto save improvements.

* Factor auto save common code into base frame class so all frame windows
  can take advantage of the shiny new auto save goodness.
* Use a timer instead of depending on mouse and keyboard events to trigger
  an auto save.
* Check for auto save file when opening a board and ask user if they
  wish to use the auto save file or the last saved board file.
* Protect all base frame public members.

3d-viewer/3d_toolbar.cpp

-/********************/
-/*	3d_toolbar.cpp  */
-/********************/
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file 3d_toolbar.cpp
+ */
 
 #include "fctsys.h"
 
@@ -105,10 +130,9 @@ void EDA_3D_FRAME::ReCreateMenuBar()
 {
     bool full_options = true;
 
-    // If called from the display frame of cvpcb, only some options are
-    // relevant
-    if( m_Parent->m_FrameName == wxT( "CmpFrame" ) )
-    // Called from cvpcb: do not display all options
+    // If called from the display frame of CvPcb, only some options are relevant
+    if( m_Parent->GetName() == wxT( "CmpFrame" ) )
+    // Called from CvPcb: do not display all options
         full_options = false;
 
     wxMenuBar* menuBar = new wxMenuBar;

common/drawpanel.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file drawpanel.cpp
  */
@@ -841,7 +866,7 @@ void EDA_DRAW_PANEL::OnMouseEvent( wxMouseEvent& event )
     if( !IsMouseCaptured() )          // No mouse capture in progress.
         m_AutoPAN_Request = false;
 
-    if( GetParent()->m_FrameIsActive )
+    if( GetParent()->IsActive() )
         SetFocus();
     else
         return;

eeschema/dialogs/dialog_SVG_print.cpp

-/////////////////////////////////////////////////////////////////////////////
-// Name:        dialog_svg_print.cpp
-// Author:      jean-pierre Charras
-// Modified by:
-// Licence: GPL
-/////////////////////////////////////////////////////////////////////////////
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file dialog_SVG_print.cpp
+ */
 
 #include "fctsys.h"
 #include "appl_wxstruct.h"
@@ -100,7 +122,7 @@ void DIALOG_SVG_PRINT::PrintSVGDoc( bool aPrintAll, bool aPrint_Sheet_Ref )
 
     SCH_SCREEN* screen = (SCH_SCREEN*) m_Parent->GetScreen();
 
-    if( aPrintAll && m_Parent->m_Ident == SCHEMATIC_FRAME )
+    if( aPrintAll && m_Parent->IsType( SCHEMATIC_FRAME ) )
     {
         SCH_EDIT_FRAME*  schframe = (SCH_EDIT_FRAME*) m_Parent;
         SCH_SHEET_PATH*  sheetpath, * oldsheetpath = schframe->GetSheet();

eeschema/lib_pin.cpp

-/***************/
-/* lib_pin.cpp */
-/***************/
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2009 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file lib_pin.cpp
+ */
 
 #include "fctsys.h"
 #include "appl_wxstruct.h"
@@ -804,7 +829,7 @@ void LIB_PIN::drawGraphic( EDA_DRAW_PANEL*  aPanel,
         if( aPanel && aPanel->GetParent() )
             frame = (EDA_DRAW_FRAME*)aPanel->GetParent();
 
-        if( frame && frame->m_Ident == SCHEMATIC_FRAME &&
+        if( frame && frame->IsType( SCHEMATIC_FRAME ) &&
             ! ((SCH_EDIT_FRAME*)frame)->m_ShowAllPins )
             return;
 

include/id.h

-/* Liste des identificateurs des boutons et menus */
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2009 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file id.h
+ */
+
+
 #ifndef ID_H
 #define ID_H
 
@@ -29,6 +58,7 @@ enum main_id
     ID_NEW_BOARD,
     ID_SAVE_BOARD,
     ID_SAVE_BOARD_AS,
+    ID_AUTO_SAVE_TIMER,
 
     ID_CONFIG_REQ,
     ID_CONFIG_SAVE,

include/wxPcbStruct.h

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file wxPcbStruct.h
  */
@@ -18,6 +43,10 @@
 #endif
 
 
+#define CREATE_BACKUP_FILE    true
+#define NO_BACKUP_FILE        false
+
+
 /*  Forward declarations of classes. */
 class PCB_SCREEN;
 class BOARD;
@@ -57,9 +86,6 @@ class PCB_EDIT_FRAME : public PCB_BASE_FRAME
     int             m_RecordingMacros;
     MACROS_RECORDED m_Macros[10];
 
-    int m_saveInterval;                 ///< Time interval in seconds for automatic saving.
-    int m_lastSaveTime;                 ///< Last save time.
-
 protected:
 
     PCB_LAYER_WIDGET* m_Layers;
@@ -116,6 +142,21 @@ protected:
 
     virtual void unitsChangeRefresh();
 
+    /**
+     * Function doAutoSave
+     * performs auto save when the board has been modified and not saved within the
+     * auto save interval.
+     *
+     * @return true if the auto save was successful.
+     */
+    virtual bool doAutoSave();
+
+    /**
+     * Function isModified
+     * returns true if the board has been modified.
+     */
+    virtual bool isModified() const;
+
 public:
     LAYER_BOX_SELECTOR* m_SelLayerBox;  // a combo box to display and select active layer
     wxComboBox* m_SelTrackWidthBox;     // a combo box to display and select current track width
@@ -233,12 +274,6 @@ public:
      */
     virtual void SetGridColor(int aColor);
 
-    void ResetAutoSaveTimeOut() { m_lastSaveTime = time( NULL ); }
-
-    int GetAutoSaveTimeInterval() { return m_saveInterval; }
-
-    void SetAutoSaveTimeInterval( int aInterval ) { m_saveInterval = aInterval; }
-
     // Configurations:
     void InstallConfigFrame();
     void Process_Config( wxCommandEvent& event );
@@ -684,9 +719,12 @@ public:
      *
      * @param aFileName The file name to write or wxEmptyString to prompt user for
      *                  file name.
+     * @param aCreateBackupFile Creates a back of \a aFileName if true.  Helper
+     *                          definitions #CREATE_BACKUP_FILE and #NO_BACKUP_FILE
+     *                          are defined for improved code readability.
      * @return True if file was saved successfully.
      */
-    bool SavePcbFile( const wxString& aFileName );
+    bool SavePcbFile( const wxString& aFileName, bool aCreateBackupFile = CREATE_BACKUP_FILE );
 
     int SavePcbFormatAscii( FILE* File );
     bool WriteGeneralDescrPcb( FILE* File );

include/wxstruct.h

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file wxstruct.h
  * @brief Base window classes and related definitions.
@@ -82,7 +107,7 @@ enum id_toolbar {
  */
 class EDA_BASE_FRAME : public wxFrame
 {
-public:
+protected:
     int          m_Ident;        // Id Type (pcb, schematic, library..)
     wxPoint      m_FramePos;
     wxSize       m_FrameSize;
@@ -96,13 +121,67 @@ public:
 
     wxAuiManager m_auimgr;
 
+    /// Flag to indicate if this frame supports auto save.
+    bool         m_hasAutoSave;
+
+    /// Flag to indicate the last auto save state.
+    bool         m_autoSaveState;
+
+    /// The auto save interval time in seconds.
+    int          m_autoSaveInterval;
+
+    /// The timer used to implement the auto save feature;
+    wxTimer*     m_autoSaveTimer;
+
+    /**
+     * Function onAutoSaveTimer
+     * handles the auto save timer event.
+     */
+    void onAutoSaveTimer( wxTimerEvent& aEvent );
+
+    /**
+     * Function isModified
+     * returns the modification status of the application.  Override this function if
+     * your derived frame supports automatic file saving.
+     */
+    virtual bool isModified() const { return false; }
+
+    /**
+     * Function doAutoSave
+     * should be overridden by the derived class to handle the auto save feature.
+     *
+     * @return true if the auto save was successful otherwise false.
+     */
+    virtual bool doAutoSave();
+
 public:
     EDA_BASE_FRAME( wxWindow* father, int idtype, const wxString& title,
                     const wxPoint& pos, const wxSize& size,
                     long style = KICAD_DEFAULT_DRAWFRAME_STYLE );
+
     ~EDA_BASE_FRAME();
 
+    /**
+     * Function ProcessEvent
+     * overrides the default process event handler to implement the auto save feature.
+     *
+     * @warning If you override this function in a derived class, make sure you call
+     *          down to this or the auto save feature will be disabled.
+     */
+    virtual bool ProcessEvent( wxEvent& aEvent );
+
+    void SetAutoSaveInterval( int aInterval ) { m_autoSaveInterval = aInterval; }
+
+    int GetAutoSaveInterval() const { return m_autoSaveInterval; }
+
+    wxString GetName() const { return m_FrameName; }
+
+    bool IsActive() const { return m_FrameIsActive; }
+
+    bool IsType( int aType ) const { return m_Ident == aType; }
+
     void GetKicadHelp( wxCommandEvent& event );
+
     void GetKicadAbout( wxCommandEvent& event );
 
     /**
@@ -120,7 +199,22 @@ public:
      */
     void AddHelpVersionInfoMenuEntry( wxMenu* aMenu );
 
+    /**
+     * Load common frame parameters from configuration.
+     *
+     * The method is virtual so you can override it to load frame specific
+     * parameters.  Don't forget to call the base method or your frames won't
+     * remember their positions and sizes.
+     */
     virtual void LoadSettings();
+
+    /**
+     * Save common frame parameters from configuration.
+     *
+     * The method is virtual so you can override it to save frame specific
+     * parameters.  Don't forget to call the base method or your frames won't
+     * remember their positions and sizes.
+     */
     virtual void SaveSettings();
 
     /**
@@ -209,6 +303,9 @@ public:
      */
     void UpdateFileHistory( const wxString& FullFileName, wxFileHistory * aFileHistory = NULL );
 
+    /*
+     * Display a bargraph (0 to 50 point length) for a PerCent value from 0 to 100
+     */
     void DisplayActivity( int PerCent, const wxString& Text );
 
     /**

pcbnew/class_module.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file class_module.cpp
  * @brief MODULE class implementation.
@@ -708,7 +733,7 @@ void MODULE::DisplayInfo( EDA_DRAW_FRAME* frame )
 
     frame->EraseMsgBox();
 
-    if( frame->m_Ident != PCB_FRAME )
+    if( frame->IsType( PCB_FRAME ) )
         flag = true;
 
     frame->AppendMsgPanel( m_Reference->m_Text, m_Value->m_Text, DARKCYAN );

pcbnew/class_track.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2009 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file class_track.h
  * @brief Functions relatives to tracks, vias and segments used to fill zones.
@@ -985,7 +1010,7 @@ void TRACK::DisplayInfo( EDA_DRAW_FRAME* frame )
     DisplayInfoBase( frame );
 
     // Display full track length (in Pcbnew)
-    if( frame->m_Ident == PCB_FRAME )
+    if( frame->IsType( PCB_FRAME ) )
     {
         int trackLen = 0;
         int lenDie = 0;
@@ -1053,7 +1078,7 @@ void TRACK::DisplayInfoBase( EDA_DRAW_FRAME* frame )
     frame->AppendMsgPanel( _( "Type" ), msg, DARKCYAN );
 
     // Display Net Name (in Pcbnew)
-    if( frame->m_Ident == PCB_FRAME )
+    if( frame->IsType( PCB_FRAME ) )
     {
         NETINFO_ITEM* net = board->FindNet( GetNet() );
 

pcbnew/controle.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file pcbnew/controle.cpp
  */
@@ -241,33 +266,6 @@ void PCB_EDIT_FRAME::GeneralControl( wxDC* aDC, const wxPoint& aPosition, int aH
     wxPoint     oldpos;
     wxPoint     pos = GetScreen()->GetNearestGridPosition( aPosition );
 
-    // Save the board after the time out :
-    int CurrentTime = time( NULL );
-
-    if( !GetScreen()->IsModify() || GetScreen()->IsSave() )
-    {
-        /* If no change, reset the time out */
-        m_lastSaveTime = CurrentTime;
-    }
-
-    if( (CurrentTime - m_lastSaveTime) > m_saveInterval )
-    {
-        wxString tmpFileName = GetScreen()->GetFileName();
-        wxFileName fn = wxFileName( wxEmptyString, g_SaveFileName, PcbFileExtension );
-        bool flgmodify = GetScreen()->IsModify();
-
-        SavePcbFile( fn.GetFullPath() );
-
-        if( flgmodify ) // Set the flags m_Modify cleared by SavePcbFile()
-        {
-            OnModify();
-            GetScreen()->SetSave(); // Set the flags m_FlagSave cleared by SetModify()
-        }
-
-        GetScreen()->SetFileName( tmpFileName );
-        UpdateTitle();
-    }
-
     oldpos = GetScreen()->GetCrossHairPosition();
 
     gridSize = GetScreen()->GetGridSize();

pcbnew/dialogs/dialog_general_options.cpp

-/////////////////////////////////////////////////////////////////////////////
-// Name:        dialog_general_options.cpp
-// Author:      jean-pierre Charras
-/////////////////////////////////////////////////////////////////////////////
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file dialog_general_options.cpp
+ */
 
 /* functions relatives to the dialogs opened from the main menu :
  *   Preferences/general
@@ -55,7 +78,7 @@ void Dialog_GeneralOptions::init()
     }
 
     wxString timevalue;
-    timevalue << GetParent()->GetAutoSaveTimeInterval() / 60;
+    timevalue << GetParent()->GetAutoSaveInterval() / 60;
     m_SaveTime->SetValue( timevalue );
     m_MaxShowLinks->SetValue( g_MaxLinksShowed );
 
@@ -93,7 +116,7 @@ void Dialog_GeneralOptions::OnOkClick( wxCommandEvent& event )
         GetParent()->ReCreateAuxiliaryToolbar();
 
     GetParent()->m_CursorShape = m_CursorShape->GetSelection();
-    GetParent()->SetAutoSaveTimeInterval( 60 * m_SaveTime->GetValue() );
+    GetParent()->SetAutoSaveInterval( m_SaveTime->GetValue() * 60 );
 
     g_RotationAngle = 10 * wxAtoi( m_RotationAngle->GetStringSelection() );
 

pcbnew/files.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2004-2010 Jean-Pierre Charras, jean-pierre.charras@gpisa-lab.inpg.fr
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 2010 KiCad Developers, see change_log.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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file pcbnew/files.cpp
  * @brief Read and write board files.
@@ -14,6 +39,7 @@
 #include "3d_viewer.h"
 #include "richio.h"
 #include "filter_reader.h"
+#include "appl_wxstruct.h"
 
 #include "pcbnew.h"
 #include "protos.h"
@@ -169,11 +195,58 @@ the changes?" ) ) )
     if( !aAppend )
         Clear_Pcb( false );     // pass false since we prompted above for a modified board
 
-    GetScreen()->SetFileName( fileName.GetFullPath() );
+    // Check for board auto save file.
+    wxFileName autoSaveFileName = fileName;
+
+    autoSaveFileName.SetName( wxT( "$" ) + autoSaveFileName.GetName() );
+
+    if( autoSaveFileName.FileExists() )
+    {
+        int response = wxMessageBox( _( "Well this is embarrassing!  It appears that the last \
+time you were editing this board the file was not save properly.  Do you wish to restore the \
+last edits you made?" ), wxGetApp().GetAppName(), wxYES_NO | wxICON_QUESTION, this );
+
+        // Make a backup of the current board file, delete the board file, and copy
+        // the auto save file to the board file name.
+        if( response == wxYES )
+        {
+            /* Get the backup file name */
+            wxFileName backupFileName = fileName;
+            backupFileName.SetExt( BACKUP_FILE_EXT );
+
+            /* If an old backup file exists, delete it.  If an old board file exists, rename
+             * it to the backup file name
+            */
+            if( fileName.FileExists() )
+            {
+                /* rename the "old" file" from xxx.brd to xxx.000 */
+                if( backupFileName.FileExists() )    /* Remove the old file xxx.000 (if exists) */
+                    wxRemoveFile( backupFileName.GetFullPath() );
+
+                if( !wxRenameFile( fileName.GetFullPath(), backupFileName.GetFullPath() ) )
+                {
+                    msg = _( "Could not create backup file " ) + backupFileName.GetFullPath();
+                    DisplayError( this, msg );
+                }
+            }
+
+            if( !wxRenameFile( autoSaveFileName.GetFullPath(), fileName.GetFullPath() ) )
+            {
+                wxMessageBox( _( "The auto save file could not be renamed to the board file \
+name." ),
+                              wxGetApp().GetAppName(), wxOK | wxICON_EXCLAMATION, this );
+            }
+        }
+        else
+        {
+            // Remove the auto save file when using the board file as is.
+            wxRemoveFile( autoSaveFileName.GetFullPath() );
+        }
+    }
 
-    /* Start read PCB file
-    */
+    GetScreen()->SetFileName( fileName.GetFullPath() );
 
+    // Start read PCB file
     source = wxFopen( GetScreen()->GetFileName(), wxT( "rt" ) );
 
     if( source == NULL )
@@ -284,9 +357,6 @@ this file again." ) );
     Compile_Ratsnest( NULL, true );
     GetBoard()->DisplayInfo( this );
 
-    /* reset the auto save timer */
-    m_lastSaveTime = time( NULL );
-
     // Refresh the 3D view, if any
     if( m_Draw3DFrame )
         m_Draw3DFrame->NewDisplay();
@@ -306,7 +376,7 @@ this file again." ) );
 }
 
 
-bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName )
+bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName, bool aCreateBackupFile )
 {
     wxFileName  backupFileName;
     wxFileName  pcbFileName;
@@ -344,31 +414,35 @@ bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName )
     if( !IsWritable( pcbFileName ) )
         return false;
 
-    /* Get the backup file name */
-    backupFileName = pcbFileName;
-    backupFileName.SetExt( BACKUP_FILE_EXT );
-
-    /* If an old backup file exists, delete it.
-    if an old board file exists, rename it to the backup file name
-    */
-    if( pcbFileName.FileExists() )
+    if( aCreateBackupFile )
     {
-        /* rename the "old" file" from xxx.brd to xxx.000 */
-        if( backupFileName.FileExists() )    /* Remove the old file xxx.000 (if exists) */
-            wxRemoveFile( backupFileName.GetFullPath() );
-
-        if( !wxRenameFile( pcbFileName.GetFullPath(), backupFileName.GetFullPath() ) )
+        /* Get the backup file name */
+        backupFileName = pcbFileName;
+        backupFileName.SetExt( BACKUP_FILE_EXT );
+
+        /* If an old backup file exists, delete it.  If an old board file exists, rename
+         * it to the backup file name
+         */
+        if( pcbFileName.FileExists() )
+        {
+            // Remove the old file xxx.000 if it exists.
+            if( backupFileName.FileExists() )
+                wxRemoveFile( backupFileName.GetFullPath() );
+
+            // Rename the "old" file" from xxx.brd to xxx.000
+            if( !wxRenameFile( pcbFileName.GetFullPath(), backupFileName.GetFullPath() ) )
+            {
+                msg = _( "Warning: unable to create backup file " ) + backupFileName.GetFullPath();
+                DisplayError( this, msg );
+                saveok = false;
+            }
+        }
+        else
         {
-            msg = _( "Warning: unable to create backup file " ) + backupFileName.GetFullPath();
-            DisplayError( this, msg );
+            backupFileName.Clear();
             saveok = false;
         }
     }
-    else
-    {
-        backupFileName.Clear();
-        saveok = false;
-    }
 
     /* Create the file */
     dest = wxFopen( pcbFileName.GetFullPath(), wxT( "wt" ) );
@@ -394,6 +468,13 @@ bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName )
 
     if( saveok )
     {
+        // Delete auto save file on successful save.
+        wxFileName autoSaveFileName = pcbFileName;
+        autoSaveFileName.SetName( wxT( "$" ) + pcbFileName.GetName() );
+
+        if( autoSaveFileName.FileExists() )
+            wxRemoveFile( autoSaveFileName.GetFullPath() );
+
         upperTxt = _( "Backup file: " ) + backupFileName.GetFullPath();
     }
 
@@ -407,8 +488,29 @@ bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName )
     ClearMsgPanel();
     AppendMsgPanel( upperTxt, lowerTxt, CYAN );
 
-    m_lastSaveTime = time( NULL );    /* Reset timer for the automatic saving */
-
     GetScreen()->ClrModify();
     return true;
 }
+
+
+bool PCB_EDIT_FRAME::doAutoSave()
+{
+    wxFileName tmpFileName = GetScreen()->GetFileName();
+    wxFileName fn = tmpFileName;
+
+    // Auto save file name is the normal file name prepended with $.
+    fn.SetName( wxT( "$" ) + fn.GetName() );
+
+    if( SavePcbFile( fn.GetFullPath(), NO_BACKUP_FILE ) )
+    {
+        OnModify();
+        GetScreen()->SetSave();      // Set the flags m_FlagSave cleared by SetModify()
+        GetScreen()->SetFileName( tmpFileName.GetFullPath() );
+        UpdateTitle();
+        return true;
+    }
+
+    GetScreen()->SetFileName( tmpFileName.GetFullPath() );
+
+    return false;
+}

pcbnew/loadcmp.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file pcbnew/loadcmp.cpp
  * @brief Footprints selection and loading functions.
@@ -193,7 +217,6 @@ MODULE* PCB_BASE_FRAME::GetModuleLibrary( const wxString& aLibraryFullFilename,
     FILE*      file = NULL;
     unsigned   ii;
     bool       one_lib = aLibraryFullFilename.IsEmpty() ? false : true;
-    PCB_EDIT_FRAME* parent = (PCB_EDIT_FRAME*) GetParent();
 
     for( ii = 0; ii < g_LibraryNames.GetCount(); ii++ )
     {

pcbnew/pcbframe.cpp

@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2004-2010 Jean-Pierre Charras, jean-pierre.charras@gpisa-lab.inpg.fr
  * Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
  * Copyright (C) 2010 KiCad Developers, see change_log.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
@@ -23,25 +24,26 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  */
 
-
-/******************************************/
-/* pcbframe.cpp - PCB editor main window. */
-/******************************************/
+/**
+ * @file pcbframe.cpp
+ * @brief PCB editor main window implementation.
+ */
 
 #include "fctsys.h"
 #include "appl_wxstruct.h"
 #include "class_drawpanel.h"
 #include "confirm.h"
-#include "pcbnew.h"
 #include "wxPcbStruct.h"
 #include "pcbcommon.h"      // enum PCB_VISIBLE
 #include "collectors.h"
 #include "build_version.h"
+#include "macros.h"
+#include "3d_viewer.h"
+
+#include "pcbnew.h"
 #include "protos.h"
 #include "pcbnew_id.h"
 #include "drc_stuff.h"
-#include "3d_viewer.h"
-#include "kbool/include/kbool/booleng.h"
 #include "layer_widget.h"
 #include "dialog_design_rules.h"
 #include "class_pcb_layer_widget.h"
@@ -275,8 +277,9 @@ PCB_EDIT_FRAME::PCB_EDIT_FRAME( wxWindow* parent, const wxString& title,
     m_show_microwave_tools = false;
     m_show_layer_manager_tools = true;
     m_HotkeysZoomAndGridList = g_Board_Editor_Hokeys_Descr;
-
+    m_hasAutoSave = true;
     m_RecordingMacros = -1;
+
     for ( int i = 0; i < 10; i++ )
         m_Macros[i].m_Record.clear();
 
@@ -410,6 +413,12 @@ PCB_EDIT_FRAME::~PCB_EDIT_FRAME()
 }
 
 
+bool PCB_EDIT_FRAME::isModified() const
+{
+    return GetScreen()->IsModify();
+}
+
+
 void PCB_EDIT_FRAME::ReFillLayerWidget()
 {
     m_Layers->ReFill();
@@ -464,6 +473,23 @@ void PCB_EDIT_FRAME::OnCloseWindow( wxCloseEvent& Event )
         }
     }
 
+    // Delete the auto save file if it exists.
+    wxFileName fn = GetScreen()->GetFileName();
+
+    // Auto save file name is the normal file name prefixed with a '$'.
+    fn.SetName( wxT( "$" ) + fn.GetName() );
+
+    // Remove the auto save file on a normal close of Pcbnew.
+    if( fn.FileExists() && !wxRemoveFile( fn.GetFullPath() ) )
+    {
+        wxString msg;
+
+        msg.Printf( _( "The auto save file <%s> could not be removed!" ),
+                    GetChars( fn.GetFullPath() ) );
+
+        wxMessageBox( msg, wxGetApp().GetAppName(), wxOK | wxICON_ERROR, this );
+    }
+
     SaveSettings();
 
     // do not show the window because ScreenPcb will be deleted and we do not

pcbnew/pcbnew.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file pcbnew.cpp
  * @brief Pcbnew main program.
@@ -151,7 +175,6 @@ Changing extension to .brd." ), GetChars( fn.GetFullPath() ) );
             frame->UpdateTitle();
             frame->UpdateFileHistory( frame->GetScreen()->GetFileName() );
             frame->OnModify();          // Ready to save the new empty board
-            frame->ResetAutoSaveTimeOut();
 
             wxString msg;
             msg.Printf( _( "File <%s> does not exist.\nThis is normal for a new project" ),

pcbnew/pcbnew_config.cpp

+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
 /**
  * @file pcbnew_config.cpp
  */
@@ -368,8 +393,6 @@ PARAM_CFG_ARRAY& PCB_EDIT_FRAME::GetConfigurationSettings()
     // Miscellaneous:
     m_configSettings.push_back( new PARAM_CFG_INT( true, wxT( "RotationAngle" ), &g_RotationAngle,
                                                    900, 450, 900 ) );
-    m_configSettings.push_back( new PARAM_CFG_INT( true, wxT( "TimeOut" ), &m_saveInterval,
-                                                   600, 0, 60000 ) );
     m_configSettings.push_back( new PARAM_CFG_INT( true, wxT( "MaxLnkS" ), &g_MaxLinksShowed,
                                                    3, 0, 15 ) );
     m_configSettings.push_back( new PARAM_CFG_BOOL( true, wxT( "ShowMRa" ),

pcbnew/printout_controler.cpp

-/**************************/
-/* printout_controler.cpp */
-/**************************/
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
+ * Copyright (C) 1992-2011 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * printout_controler.cpp
+ */
 
 // Set this to 1 if you want to test PostScript printing under MSW.
 #define wxTEST_POSTSCRIPT_IN_MSW 1
@@ -50,13 +74,11 @@ BOARD_PRINTOUT_CONTROLER::BOARD_PRINTOUT_CONTROLER( const PRINT_PARAMETERS& prin
 }
 
 
-/*****************************************************/
 bool BOARD_PRINTOUT_CONTROLER::OnPrintPage( int page )
-/*****************************************************/
 {
     int layers_count = NB_LAYERS;
 
-    if( m_Parent->m_Ident == GERBER_FRAME )
+    if( m_Parent->IsType( GERBER_FRAME ) )
         layers_count = 32;
 
     int mask_layer = m_PrintParams.m_PrintMaskLayer;
@@ -65,15 +87,18 @@ bool BOARD_PRINTOUT_CONTROLER::OnPrintPage( int page )
     if( m_PrintParams.m_OptionPrintPage == 0 )  // One page per layer
     {
         int ii, jj, mask = 1;
+
         for( ii = 0, jj = 0; ii < layers_count; ii++ )
         {
             if( mask_layer & mask )
                 jj++;
+
             if( jj == page )
             {
                 m_PrintParams.m_PrintMaskLayer = mask;
                 break;
             }
+
             mask <<= 1;
         }
     }
@@ -148,7 +173,7 @@ void BOARD_PRINTOUT_CONTROLER::DrawPage()
     // In module editor, the module is located at 0,0 but for printing
     // it is moved to SheetSize.x/2, SheetSize.y/2.
     // So the equivalent board must be moved:
-    if( m_Parent->m_Ident == MODULE_EDITOR_FRAME )
+    if( m_Parent->IsType( MODULE_EDITOR_FRAME ) )
     {
         wxPoint mv_offset;
         mv_offset.x = SheetSize.x / 2;