X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7520f3da332d64a676b6f7d27a56004fabf2db36..8a540c887cd30960c77e6c171ecabe30273321a8:/src/motif/spinbutt.cpp

diff --git a/src/motif/spinbutt.cpp b/src/motif/spinbutt.cpp
index fcdc7ec477..a84d1f38dd 100644
--- a/src/motif/spinbutt.cpp
+++ b/src/motif/spinbutt.cpp
@@ -15,8 +15,12 @@
 #if wxUSE_SPINBTN
 
 #include "wx/spinbutt.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/timer.h"
+#endif
+
 #include "wx/spinctrl.h"
-#include "wx/timer.h"
 
 #ifdef __VMS__
 #pragma message disable nosimpint
@@ -89,7 +93,7 @@ public:
         Create( parent, id, d, pos, size );
     }
 
-    ~wxArrowButton()
+    virtual ~wxArrowButton()
         { delete m_timer; }
 
     bool Create( wxSpinButton* parent, wxWindowID id, ArrowDirection d,
@@ -185,6 +189,8 @@ bool wxArrowButton::Create( wxSpinButton* parent,
                             ArrowDirection d,
                             const wxPoint& pos, const wxSize& size )
 {
+    wxCHECK_MSG( parent, false, _T("must have a valid parent") );
+
     int arrow_dir = XmARROW_UP;
 
     switch( d )
@@ -203,7 +209,7 @@ bool wxArrowButton::Create( wxSpinButton* parent,
         break;
     }
 
-    if( parent ) parent->AddChild( this );
+    parent->AddChild( this );
 
     Widget parentWidget = (Widget) parent->GetClientWidget();
     m_mainWidget = (WXWidget) XtVaCreateManagedWidget( "XmArrowButton",