don't crash if conversion of a command line argument to Unicode fails

[wxWidgets.git] / src / common / statbar.cpp

diff --git a/src/common/statbar.cpp b/src/common/statbar.cpp
index 1ebaf0e3df76cb03a6da3ae9e4ecf9e888220015..e3a2a150667fb95e244f932eb74586964d24739a 100644 (file)
--- a/src/common/statbar.cpp
+++ b/src/common/statbar.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "statbar.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -29,13 +25,14 @@
 #endif
 
 #ifndef WX_PRECOMP
+    #include "wx/frame.h"
     #include "wx/statusbr.h"
 #endif //WX_PRECOMP
 
 #if wxUSE_STATUSBAR
 
 #include "wx/listimpl.cpp"
-WX_DEFINE_LIST(wxListString);
+WX_DEFINE_LIST(wxListString)
 
 // ============================================================================
 // wxStatusBarBase implementation
@@ -60,7 +57,15 @@ wxStatusBarBase::~wxStatusBarBase()
 {
     FreeWidths();
     FreeStacks();
-    InitStyles();
+    FreeStyles();
+
+    // notify the frame that it doesn't have a status bar any longer to avoid
+    // dangling pointers
+    wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
+    if ( frame && frame->GetStatusBar() == this )
+    {
+        frame->SetStatusBar(NULL);
+    }
 }
 
 // ----------------------------------------------------------------------------
@@ -99,7 +104,7 @@ void wxStatusBarBase::SetFieldsCount(int number, const int *widths)
 {
     wxCHECK_RET( number > 0, _T("invalid field number in SetFieldsCount") );
 
-    bool refresh = FALSE;
+    bool refresh = false;
 
     if ( number != m_nFields )
     {
@@ -152,7 +157,7 @@ void wxStatusBarBase::SetFieldsCount(int number, const int *widths)
 
         ReinitWidths();
 
-        refresh = TRUE;
+        refresh = true;
     }
     //else: keep the old m_statusWidths if we had them
 
@@ -161,7 +166,7 @@ void wxStatusBarBase::SetFieldsCount(int number, const int *widths)
         SetStatusWidths(number, widths);
 
         // already done from SetStatusWidths()
-        refresh = FALSE;
+        refresh = false;
     }
 
     if ( refresh )
@@ -243,16 +248,7 @@ wxArrayInt wxStatusBarBase::CalculateAbsWidths(wxCoord widthTotal) const
         }
 
         // the amount of extra width we have per each var width field
-        int nVarWidth;
-        if ( nVarCount )
-        {
-            int widthExtra = widthTotal - nTotalWidth;
-            nVarWidth = widthExtra > 0 ? widthExtra / nVarCount : 0;
-        }
-        else // no var width fields at all
-        {
-            nVarWidth = 0;
-        }
+        int widthExtra = widthTotal - nTotalWidth;
 
         // do fill the array
         for ( i = 0; i < m_nFields; i++ )
@@ -263,7 +259,10 @@ wxArrayInt wxStatusBarBase::CalculateAbsWidths(wxCoord widthTotal) const
             }
             else
             {
-                widths.Add(-m_statusWidths[i]*nVarWidth);
+                int nVarWidth = widthExtra > 0 ? (widthExtra * -m_statusWidths[i]) / nVarCount : 0;
+                nVarCount += m_statusWidths[i];
+                widthExtra -= nVarWidth;
+                widths.Add(nVarWidth);
             }
         }
     }
@@ -282,12 +281,12 @@ void wxStatusBarBase::InitStacks()
 
 void wxStatusBarBase::FreeStacks()
 {
-    if(!m_statusTextStacks) return;
-    size_t i;
+    if ( !m_statusTextStacks )
+        return;
 
-    for(i = 0; i < (size_t)m_nFields; ++i)
+    for ( size_t i = 0; i < (size_t)m_nFields; ++i )
     {
-        if(m_statusTextStacks[i])
+        if ( m_statusTextStacks[i] )
         {
             wxListString& t = *m_statusTextStacks[i];
             WX_CLEAR_LIST(wxListString, t);