first pass of wxUniv merge - nothing works, most parts don't even compile

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10673 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cmdproc.h

@@ -0,0 +1,109 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/cmdproc.h
+// Purpose:     undo/redo capable command processing framework
+// Author:      Julian Smart (extracted from docview.h by VZ)
+// Modified by:
+// Created:     05.11.00
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWindows team
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_CMDPROC_H_
+#define _WX_CMDPROC_H_
+
+#ifdef __GNUG__
+    #pragma interface "cmdproc.h"
+#endif
+
+#include "wx/object.h"
+#include "wx/list.h"
+
+// ----------------------------------------------------------------------------
+// wxCommand: a single command capable of performing itself
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxCommand : public wxObject
+{
+public:
+    wxCommand(bool canUndoIt = FALSE, const wxString& name = "");
+    ~wxCommand();
+
+    // Override this to perform a command
+    virtual bool Do() = 0;
+
+    // Override this to undo a command
+    virtual bool Undo() = 0;
+
+    virtual bool CanUndo() const { return m_canUndo; }
+    virtual wxString GetName() const { return m_commandName; }
+
+protected:
+    bool     m_canUndo;
+    wxString m_commandName;
+
+private:
+    DECLARE_CLASS(wxCommand)
+};
+
+// ----------------------------------------------------------------------------
+// wxCommandProcessor: wxCommand manager
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxCommandProcessor : public wxObject
+{
+public:
+    // if max number of commands is -1, it is unlimited
+    wxCommandProcessor(int maxCommands = -1);
+    virtual ~wxCommandProcessor();
+
+    // Pass a command to the processor. The processor calls Do(); if
+    // successful, is appended to the command history unless storeIt is FALSE.
+    virtual bool Submit(wxCommand *command, bool storeIt = TRUE);
+
+    // just store the command without executing it
+    virtual void Store(wxCommand *command);
+
+    virtual bool Undo();
+    virtual bool Redo();
+    virtual bool CanUndo() const;
+    virtual bool CanRedo() const;
+
+    virtual void Initialize();
+    virtual void SetMenuStrings();
+
+#if wxUSE_MENUS
+    // Call this to manage an edit menu.
+    void SetEditMenu(wxMenu *menu) { m_commandEditMenu = menu; }
+    wxMenu *GetEditMenu() const { return m_commandEditMenu; }
+#endif // wxUSE_MENUS
+
+    // command list access
+    wxList& GetCommands() const { return (wxList&) m_commands; }
+    wxCommand *GetCurrentCommand() const
+    {
+        return (wxCommand *)(m_currentCommand ? m_currentCommand->Data() : NULL);
+    }
+    int GetMaxCommands() const { return m_maxNoCommands; }
+    virtual void ClearCommands();
+
+protected:
+    // for further flexibility, command processor doesn't call wxCommand::Do()
+    // and Undo() directly but uses these functions which can be overridden in
+    // the derived class
+    virtual bool DoCommand(wxCommand& cmd);
+    virtual bool UndoCommand(wxCommand& cmd);
+
+    int           m_maxNoCommands;
+    wxList        m_commands;
+    wxNode*       m_currentCommand;
+
+#if wxUSE_MENUS
+    wxMenu*       m_commandEditMenu;
+#endif // wxUSE_MENUS
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxCommandProcessor)
+};
+
+#endif // _WX_CMDPROC_H_