NULL is not bool.

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

diff --git a/src/common/cmdproc.cpp b/src/common/cmdproc.cpp
index 6d4ea446425ac5bb408393fc5c080c4c258c4602..0bfe20d3f59f2320515938ad1eb2faf90a893e4c 100644 (file)
--- a/src/common/cmdproc.cpp
+++ b/src/common/cmdproc.cpp
@@ -5,7 +5,7 @@
 // Modified by:
 // Created:     05.11.00
 // RCS-ID:      $Id$
-// Copyright:   (c) wxWindows team
+// Copyright:   (c) wxWidgets team
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "cmdproc.h"
 #endif
 
@@ -53,10 +53,6 @@ wxCommand::wxCommand(bool canUndoIt, const wxString& name)
     m_commandName = name;
 }
 
-wxCommand::~wxCommand()
-{
-}
-
 // ----------------------------------------------------------------------------
 // Command processor
 // ----------------------------------------------------------------------------
@@ -69,6 +65,9 @@ wxCommandProcessor::wxCommandProcessor(int maxCommands)
 #endif // wxUSE_MENUS
     m_undoAccelerator = wxT("\tCtrl+Z");
     m_redoAccelerator = wxT("\tCtrl+Y");
+#if !wxUSE_STL
+    m_currentCommand = NULL;
+#endif
 }
 
 wxCommandProcessor::~wxCommandProcessor()
@@ -88,23 +87,25 @@ bool wxCommandProcessor::UndoCommand(wxCommand& cmd)
 
 // Pass a command to the processor. The processor calls Do();
 // if successful, is appended to the command history unless
-// storeIt is FALSE.
+// storeIt is false.
 bool wxCommandProcessor::Submit(wxCommand *command, bool storeIt)
 {
-    wxCHECK_MSG( command, FALSE, _T("no command in wxCommandProcessor::Submit") );
+    wxCHECK_MSG( command, false, _T("no command in wxCommandProcessor::Submit") );
 
     if ( !DoCommand(*command) )
     {
         // the user code expects the command to be deleted anyhow
         delete command;
 
-        return FALSE;
+        return false;
     }
 
     if ( storeIt )
         Store(command);
+    else
+        delete command;
 
-    return TRUE;
+    return true;
 }
 
 void wxCommandProcessor::Store(wxCommand *command)
@@ -149,17 +150,21 @@ bool wxCommandProcessor::Undo()
         {
             m_currentCommand = m_currentCommand->GetPrevious();
             SetMenuStrings();
-            return TRUE;
+            return true;
         }
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxCommandProcessor::Redo()
 {
     wxCommand *redoCommand = (wxCommand *) NULL;
-    wxList::compatibility_iterator redoNode = 0;
+    wxList::compatibility_iterator redoNode
+#if !wxUSE_STL
+        = NULL          // just to avoid warnings
+#endif // !wxUSE_STL
+        ;
 
     if ( m_currentCommand )
     {
@@ -186,10 +191,10 @@ bool wxCommandProcessor::Redo()
         {
             m_currentCommand = redoNode;
             SetMenuStrings();
-            return TRUE;
+            return true;
         }
     }
-    return FALSE;
+    return false;
 }
 
 bool wxCommandProcessor::CanUndo() const
@@ -202,15 +207,15 @@ bool wxCommandProcessor::CanUndo() const
 bool wxCommandProcessor::CanRedo() const
 {
     if (m_currentCommand && !m_currentCommand->GetNext())
-        return FALSE;
+        return false;
 
     if (m_currentCommand && m_currentCommand->GetNext())
-        return TRUE;
+        return true;
 
     if (!m_currentCommand && (m_commands.GetCount() > 0))
-        return TRUE;
+        return true;
 
-    return FALSE;
+    return false;
 }
 
 void wxCommandProcessor::Initialize()
@@ -226,7 +231,7 @@ void wxCommandProcessor::SetMenuStrings()
     {
         wxString undoLabel = GetUndoMenuLabel();
         wxString redoLabel = GetRedoMenuLabel();
-        
+
         m_commandEditMenu->SetLabel(wxID_UNDO, undoLabel);
         m_commandEditMenu->Enable(wxID_UNDO, CanUndo());
 
@@ -255,7 +260,7 @@ wxString wxCommandProcessor::GetUndoMenuLabel() const
     {
         buf = _("&Undo") + m_undoAccelerator;
     }
-    
+
     return buf;
 }