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016e1949ae
... This involved populating it with a new registration system. BatchEvalCommand, HelpCommand, MessageCommand escape from cycles and move higher in the dependency graph, and CommandDirectory moves lower.
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/**********************************************************************
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Audacity - A Digital Audio Editor
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Copyright 1999-2009 Audacity Team
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License: wxWidgets
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Dan Horgan
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******************************************************************//**
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\file CommandDirectory.h
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\brief Contains declarations for CommandDirectory class
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\class CommandDirectory
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\brief Allows registration and lookup (by name) of command types.
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A singleton. This fulfills a similar purpose to CommandManager, but for general
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Commands rather than menu items. Eventually they could be unified but for now
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they are kept separate to make things simpler.
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*//*******************************************************************/
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#ifndef __COMMANDDIRECTORY__
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#define __COMMANDDIRECTORY__
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#include "CommandType.h"
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class CommandOutputTargets;
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class CommandDirectory
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{
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private:
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static std::unique_ptr<CommandDirectory> mInstance;
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static CommandMap &sCmdMap();
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static void AddCommand(std::unique_ptr<OldStyleCommandType> type);
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public:
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/// Register a type of command with the directory with a statically
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/// constructed instance of this class.
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struct RegisterType{
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RegisterType( std::unique_ptr<OldStyleCommandType> type )
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{ AddCommand( std::move( type ) ); }
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};
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~CommandDirectory();
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/// If a command with the given name has been registered in the directory,
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/// return a pointer to the factory for commands of that type.
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/// Otherwise return NULL.
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OldStyleCommandType *LookUp(const wxString &cmdName) const;
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/// Get a pointer to the singleton instance
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static CommandDirectory *Get();
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private:
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CommandDirectory();
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};
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#endif /* End of include guard: __COMMANDDIRECTORY__ */
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