pleditor: Ensure toolbars are redrawn when icon size changes

This ensures the icon scaling factor is applied to the toolbars,
and also fixes a drawing artifact where the old dropdown boxes
would still be visible on top of the scaled icons (with the new
ones in their proper place.

pagelayout_editor/pl_editor_frame.cpp

@@ -79,18 +79,20 @@ END_EVENT_TABLE()
 PL_EDITOR_FRAME::PL_EDITOR_FRAME( KIWAY* aKiway, wxWindow* aParent ) :
         EDA_DRAW_FRAME( aKiway, aParent, FRAME_PL_EDITOR, wxT( "PlEditorFrame" ),
                         wxDefaultPosition, wxDefaultSize,
-                        KICAD_DEFAULT_DRAWFRAME_STYLE, PL_EDITOR_FRAME_NAME )
+                        KICAD_DEFAULT_DRAWFRAME_STYLE, PL_EDITOR_FRAME_NAME ),
+        m_propertiesFrameWidth( 200 ),
+        m_originSelectBox( nullptr ),
+        m_originSelectChoice( 0 ),
+        m_pageSelectBox( nullptr ),
+        m_propertiesPagelayout( nullptr )
 {
     m_userUnits = EDA_UNITS::MILLIMETRES;
 
     m_showBorderAndTitleBlock   = true; // true for reference drawings.
-    m_originSelectChoice = 0;
     WS_DATA_MODEL::GetTheInstance().m_EditMode = true;
     SetShowPageLimits( true );
     m_AboutTitle = "PlEditor";
 
-    m_propertiesFrameWidth = 200;
-
     // Give an icon
     wxIcon icon;
     icon.CopyFromBitmap( KiBitmap( icon_pagelayout_editor_xpm ) );
@@ -597,6 +599,10 @@ void PL_EDITOR_FRAME::CommonSettingsChanged( bool aEnvVarsChanged, bool aTextVar
 
     GetCanvas()->GetView()->UpdateAllItems( KIGFX::COLOR );
     GetCanvas()->Refresh();
+
+    RecreateToolbars();
+    Layout();
+    SendSizeEvent();
 }
 
 

pagelayout_editor/toolbars_pl_editor.cpp

@@ -80,17 +80,24 @@ void PL_EDITOR_FRAME::ReCreateHToolbar()
         _("Left Top page corner")
     };
 
+    if( !m_originSelectBox )
+    {
         m_originSelectBox = new wxChoice( m_mainToolBar, ID_SELECT_COORDINATE_ORIGIN,
                                           wxDefaultPosition, wxDefaultSize, 5, choiceList );
+    }
+
+
     m_mainToolBar->AddControl( m_originSelectBox );
     m_originSelectBox->SetToolTip( _("Origin of coordinates displayed to the status bar") );
 
     int minwidth = 0;
+
     for( int ii = 0; ii < 5; ii++ )
     {
         int width = GetTextSize( choiceList[ii], m_originSelectBox ).x;
         minwidth = std::max( minwidth, width );
     }
+
     m_originSelectBox->SetMinSize( wxSize( minwidth, -1 ) );
     m_originSelectBox->SetSelection( m_originSelectChoice );
 
@@ -100,8 +107,12 @@ void PL_EDITOR_FRAME::ReCreateHToolbar()
         _("Other pages")
     };
 
+    if( !m_pageSelectBox )
+    {
         m_pageSelectBox = new wxChoice( m_mainToolBar, ID_SELECT_PAGE_NUMBER,
                                         wxDefaultPosition, wxDefaultSize, 2, pageList );
+    }
+
     m_mainToolBar->AddControl( m_pageSelectBox );
     m_pageSelectBox->SetToolTip( _("Simulate page 1 or other pages to show how items\n"\
                                  "which are not on all page are displayed") );