added runtime protection for no SL_LABEL style case

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36619 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/mac/carbon/slider.cpp b/src/mac/carbon/slider.cpp
index bbf97a3d9f50d8e90f5b0ff25e07535e703d9ce0..187b651bcc0ab3d1ae7fab562a2f4f065c7ab5aa 100644 (file)
--- a/src/mac/carbon/slider.cpp
+++ b/src/mac/carbon/slider.cpp
@@ -44,6 +44,10 @@ END_EVENT_TABLE()
     m_rangeMax = 0;
     m_rangeMin = 0;
     m_tickFreq = 0;
+
+    m_macMinimumStatic = NULL ;
+    m_macMaximumStatic = NULL ;
+    m_macValueStatic = NULL ;
 }
 
 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
@@ -55,6 +59,18 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
 {
     m_macIsUserPane = false ;
 
+    m_macMinimumStatic = NULL ;
+    m_macMaximumStatic = NULL ;
+    m_macValueStatic = NULL ;
+
+    m_lineSize = 1;
+    m_tickFreq = 0;
+
+    m_rangeMax = maxValue;
+    m_rangeMin = minValue;
+
+    m_pageSize = (int)((maxValue-minValue)/10);
+
     // our styles are redundant: wxSL_LEFT/RIGHT imply wxSL_VERTICAL and
     // wxSL_TOP/BOTTOM imply wxSL_HORIZONTAL, but for backwards compatibility
     // reasons we can't really change it, instead try to infer the orientation
@@ -72,13 +88,15 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
             break;
 
         case 0:
+        default:
             // no specific direction, do we have at least the orientation?
             if ( !(style & (wxSL_HORIZONTAL | wxSL_VERTICAL)) )
             {
                 // no, choose default
                 style |= wxSL_BOTTOM | wxSL_HORIZONTAL;
             }
-    };
+            break;
+    }
 
     wxASSERT_MSG( !(style & wxSL_VERTICAL) || !(style & wxSL_HORIZONTAL),
         _T("incompatible slider direction and orientation") );
@@ -86,18 +104,6 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
         return false;
 
-    m_macMinimumStatic = NULL ;
-    m_macMaximumStatic = NULL ;
-    m_macValueStatic = NULL ;
-
-    m_lineSize = 1;
-    m_tickFreq = 0;
-
-    m_rangeMax = maxValue;
-    m_rangeMin = minValue;
-
-    m_pageSize = (int)((maxValue-minValue)/10);
-
     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
 
     //
@@ -131,10 +137,11 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
         m_macMinimumStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
         m_macMaximumStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
         m_macValueStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
-        SetRange(minValue, maxValue);
-        SetValue(value);
     }
 
+    SetRange(minValue, maxValue);
+    SetValue(value);
+
     MacPostControlCreate(pos,size) ;
 
     return true;
@@ -160,10 +167,12 @@ int wxSlider::GetValue() const
 
 void wxSlider::SetValue(int value)
 {
-    wxString valuestring ;
-    valuestring.Printf( wxT("%d") , value ) ;
     if ( m_macValueStatic )
+    {
+        wxString valuestring ;
+        valuestring.Printf( wxT("%d") , value ) ;
         m_macValueStatic->SetLabel( valuestring ) ;
+    }
 
     // We only invert for the setting of the actual native widget
     m_peer->SetValue( ValueInvertOrNot ( value ) ) ;