Fix some issues created by rev 5632:

*  Use only double to store zoom levels in class BASE_SCREEN (int type is not working for eeschema or page layout editor) (this fix Bug #1450551, Assertion failed on wxRound() when zooming)
*  Fix crash in all apps but Pcbnew when a grid or a zoom was selected from the popup menu.
*  Modify default hotkeys for Next Grid and Previous Grid: the initial key was a dead key, not suitable as hotkey. the 'N' and Shift N keys are used instead (with a change for unfill zone hotkey)
*  Modify code in EDA_DRAW_FRAME::SetNextGrid() and EDA_DRAW_FRAME::SetPreviousGrid() to make them compatible with other editors than the board editor.

common/draw_frame.cpp

@@ -369,7 +369,7 @@ void EDA_DRAW_FRAME::OnSelectGrid( wxCommandEvent& event )
 
     if( event.GetEventType() == wxEVT_COMMAND_COMBOBOX_SELECTED )
     {
-        if( m_gridSelectBox == NULL )
+        if( m_gridSelectBox == NULL )   // Should no happen
             return;
 
         /*
@@ -526,35 +526,44 @@ wxPoint EDA_DRAW_FRAME::GetGridPosition( const wxPoint& aPosition ) const
 
 void EDA_DRAW_FRAME::SetNextGrid()
 {
-    if( m_gridSelectBox )
-        SetPresetGrid( ( m_gridSelectBox->GetSelection() + 1 ) % m_gridSelectBox->GetCount() );
+    BASE_SCREEN * screen = GetScreen();
+    int grid_cnt = screen->GetGridCount();
+
+    int new_grid_idx = screen->GetGridId() - ID_POPUP_GRID_LEVEL_1000 + 1;
+
+    if( new_grid_idx >= grid_cnt )
+        new_grid_idx = 0;
+
+   SetPresetGrid( new_grid_idx );
 }
 
 
 void EDA_DRAW_FRAME::SetPrevGrid()
 {
-    if( m_gridSelectBox )
-    {
-        int idx = m_gridSelectBox->GetSelection();
+    BASE_SCREEN * screen = GetScreen();
+    int grid_cnt = screen->GetGridCount();
 
-        if( --idx < 0 )
-            idx = m_gridSelectBox->GetCount() - 1;
+    int new_grid_idx = screen->GetGridId() - ID_POPUP_GRID_LEVEL_1000 - 1;
 
-        SetPresetGrid( idx );
-    }
+    if( new_grid_idx < 0 )
+        new_grid_idx = grid_cnt - 1;
+
+    SetPresetGrid( new_grid_idx );
 }
 
 
 void EDA_DRAW_FRAME::SetPresetGrid( int aIndex )
 {
-    if( aIndex < 0 || aIndex >= (int) m_gridSelectBox->GetCount() )
+    if( m_gridSelectBox )
     {
-        wxASSERT_MSG( false, "Invalid grid index" );
-        return;
-    }
+        if( aIndex < 0 || aIndex >= (int) m_gridSelectBox->GetCount() )
+        {
+            wxASSERT_MSG( false, "Invalid grid index" );
+            return;
+        }
 
-    if( m_gridSelectBox )
         m_gridSelectBox->SetSelection( aIndex );
+    }
 
     // Be sure m_LastGridSizeId is up to date.
     m_LastGridSizeId = aIndex;

common/zoom.cpp

@@ -223,7 +223,8 @@ void EDA_DRAW_FRAME::SetPresetZoom( int aIndex )
         return;
     }
 
-    m_zoomSelectBox->SetSelection( aIndex );
+    if( m_zoomSelectBox )
+        m_zoomSelectBox->SetSelection( aIndex );
 
     if( screen->SetZoom( screen->m_ZoomList[aIndex] ) )
         RedrawScreen( GetScrollCenterPosition(), true );
@@ -238,7 +239,7 @@ void EDA_DRAW_FRAME::SetPresetZoom( int aIndex )
 void EDA_DRAW_FRAME::AddMenuZoomAndGrid( wxMenu* MasterMenu )
 {
     int         maxZoomIds;
-    int         zoom;
+    double      zoom;
     wxString    msg;
     BASE_SCREEN* screen = m_canvas->GetScreen();
 

include/class_base_screen.h

@@ -215,7 +215,7 @@ public:
     int                 m_ScreenNumber;
     int                 m_NumberOfScreens;
 
-    std::vector<int>    m_ZoomList;         ///< standard zoom (i.e. scale) coefficients.
+    std::vector<double> m_ZoomList;         ///< standard zoom (i.e. scale) coefficients.
     bool                m_IsPrinting;
 
 public:

pcbnew/hotkeys.cpp

@@ -141,7 +141,7 @@ static EDA_HOTKEY HkCanvasCairo( _HKI( "Switch to Cairo Canvas" ),
 static EDA_HOTKEY HkZoneFillOrRefill( _HKI( "Fill or Refill All Zones" ),
                                  HK_ZONE_FILL_OR_REFILL, 'B' );
 static EDA_HOTKEY HkZoneRemoveFilled( _HKI( "Remove Filled Areas in All Zones" ),
-                                 HK_ZONE_REMOVE_FILLED, 'N' );
+                                 HK_ZONE_REMOVE_FILLED, 'B' + GR_KB_CTRL );
 /* Fit on Screen */
 #if !defined( __WXMAC__ )
 static EDA_HOTKEY HkZoomAuto( _HKI( "Zoom Auto" ), HK_ZOOM_AUTO, WXK_HOME );
@@ -203,10 +203,10 @@ static EDA_HOTKEY HkSwitchGridToFastGrid2( _HKI( "Switch Grid To Fast Grid2" ),
                                            HK_SWITCH_GRID_TO_FASTGRID2, GR_KB_ALT + '2' );
 
 static EDA_HOTKEY HkSwitchGridToNext( _HKI( "Switch Grid To Next" ),
-                                      HK_SWITCH_GRID_TO_NEXT, '`' );
+                                      HK_SWITCH_GRID_TO_NEXT, 'N' );
 
 static EDA_HOTKEY HkSwitchGridToPrevious( _HKI( "Switch Grid To Previous" ),
-                                          HK_SWITCH_GRID_TO_PREVIOUS, '`' + GR_KB_CTRL );
+                                          HK_SWITCH_GRID_TO_PREVIOUS, 'N' + GR_KB_SHIFT );
 
 static EDA_HOTKEY HkSwitchUnits( _HKI( "Switch Units" ), HK_SWITCH_UNITS, 'U' + GR_KB_CTRL );
 static EDA_HOTKEY HkTrackDisplayMode( _HKI( "Track Display Mode" ),

pcbnew/tools/common_actions.cpp

@@ -312,11 +312,11 @@ TOOL_ACTION COMMON_ACTIONS::gridFast2( "common.Control.gridFast2",
         "", "" );
 
 TOOL_ACTION COMMON_ACTIONS::gridNext( "common.Control.gridNext",
-        AS_GLOBAL, '`',
+        AS_GLOBAL, 'N',
         "", "" );
 
 TOOL_ACTION COMMON_ACTIONS::gridPrev( "common.Control.gridPrev",
-        AS_GLOBAL, MD_CTRL + int( '`' ),
+        AS_GLOBAL, MD_SHIFT + int( 'N' ),
         "", "" );
 
 TOOL_ACTION COMMON_ACTIONS::gridSetOrigin( "common.Control.gridSetOrigin",
@@ -363,7 +363,7 @@ TOOL_ACTION COMMON_ACTIONS::zoneUnfill( "pcbnew.EditorControl.zoneUnfill",
         _( "Unfill" ), _( "Unfill zone(s)" ), zone_unfill_xpm );
 
 TOOL_ACTION COMMON_ACTIONS::zoneUnfillAll( "pcbnew.EditorControl.zoneUnfillAll",
-        AS_GLOBAL, int( 'N' ),
+        AS_GLOBAL, MD_CTRL + int( 'B' ),
         _( "Unfill all" ), _( "Unfill all zones" ) );
 
 

pcbnew/tools/pcbnew_control.cpp

@@ -129,7 +129,7 @@ int PCBNEW_CONTROL::ZoomFitScreen( const TOOL_EVENT& aEvent )
 int PCBNEW_CONTROL::ZoomPreset( const TOOL_EVENT& aEvent )
 {
     unsigned int idx = aEvent.Parameter<long>();
-    std::vector<int>& zoomList = m_frame->GetScreen()->m_ZoomList;
+    std::vector<double>& zoomList = m_frame->GetScreen()->m_ZoomList;
     KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
     KIGFX::GAL* gal = m_frame->GetGalCanvas()->GetGAL();
 

pcbnew/tools/zoom_menu.cpp

@@ -64,7 +64,7 @@ OPT_TOOL_EVENT ZOOM_MENU::EventHandler( const wxMenuEvent& aEvent )
 void ZOOM_MENU::Update()
 {
     double zoom = m_parent->GetScreen()->GetZoom();
-    const std::vector<int>& zoomList = m_parent->GetScreen()->m_ZoomList;
+    const std::vector<double>& zoomList = m_parent->GetScreen()->m_ZoomList;
 
     for( unsigned int i = 0; i < GetMenuItemCount(); ++i )
         Check( ID_POPUP_ZOOM_LEVEL_START + i, zoomList[i] == zoom );