Added support for reading image resolutions from PNG images.

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

diff --git a/src/common/cmdproc.cpp b/src/common/cmdproc.cpp
index 3d3d024abf2026c5e8c9b878ea5b1483747f11a0..cb0d3930492d76aab84dcfe90402aad227bdf875 100644 (file)
--- a/src/common/cmdproc.cpp
+++ b/src/common/cmdproc.cpp
@@ -122,13 +122,14 @@ void wxCommandProcessor::Store(wxCommand *command)
         while (node)
         {
             wxList::compatibility_iterator next = node->GetNext();
-            delete (wxCommand *)node->GetData();
-            m_commands.Erase(node);
 
             // Make sure m_lastSavedCommand won't point to freed memory
-            if ( m_lastSavedCommand == node )
+            if ( m_lastSavedCommand && m_lastSavedCommand == node )
                 m_lastSavedCommand = wxList::compatibility_iterator();
 
+            delete (wxCommand *)node->GetData();
+            m_commands.Erase(node);
+
             node = next;
         }
     }
@@ -136,13 +137,14 @@ void wxCommandProcessor::Store(wxCommand *command)
     if ( (int)m_commands.GetCount() == m_maxNoCommands )
     {
         wxList::compatibility_iterator firstNode = m_commands.GetFirst();
-        wxCommand *firstCommand = (wxCommand *)firstNode->GetData();
-        delete firstCommand;
-        m_commands.Erase(firstNode);
 
         // Make sure m_lastSavedCommand won't point to freed memory
-        if ( m_lastSavedCommand == firstNode )
+        if ( m_lastSavedCommand && m_lastSavedCommand == firstNode )
             m_lastSavedCommand = wxList::compatibility_iterator();
+
+        wxCommand *firstCommand = (wxCommand *)firstNode->GetData();
+        delete firstCommand;
+        m_commands.Erase(firstNode);
     }
 
     m_commands.Append(command);