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117 lines
3.5 KiB
117 lines
3.5 KiB
//======= Copyright © 1996-2006, Valve Corporation, All rights reserved. ======
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//
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// Utility classes for creating maya commands
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//
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//=============================================================================
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#ifndef VSMAYACOMMAND_H
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#define VSMAYACOMMAND_H
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#if defined( _WIN32 )
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#pragma once
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#endif
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#include "tier0/dbg.h"
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#include "xsi_status.h"
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#include "idccmain.h"
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#include "xsi_context.h"
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//-----------------------------------------------------------------------------
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// Forward declarations
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//-----------------------------------------------------------------------------
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namespace XSI
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{
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class Context;
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class CRef;
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class PluginRegistrar;
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}
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//-----------------------------------------------------------------------------
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// Base class for maya commands
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//-----------------------------------------------------------------------------
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class CVsMayaCommand
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{
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public:
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CVsMayaCommand();
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virtual void OnRegister( XSI::PluginRegistrar& in_reg ) {}
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virtual XSI::CStatus doIt( XSI::Context &ctx ) = 0;
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// Derived classes must specify this to override syntax
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virtual void SpecifySyntax( const XSI::Context &ctx ) {}
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};
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//-----------------------------------------------------------------------------
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// Base class for maya command factories
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//-----------------------------------------------------------------------------
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class CVsMayaCommandFactoryBase
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{
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public:
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// Returns the commandname associated with the factory
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const char *GetCommandName();
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// Called when we register
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virtual void OnRegister( XSI::PluginRegistrar& in_reg ) {}
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// Registers/deregisters all commands
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static bool RegisterAllCommands( XSI::PluginRegistrar& in_reg );
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static void DeregisterAllCommands( const XSI::PluginRegistrar& in_reg );
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protected:
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// Constructor
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CVsMayaCommandFactoryBase( const char *pCommandName );
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private:
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CVsMayaCommandFactoryBase* m_pNextFactory;
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const char* m_CommandName;
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static CVsMayaCommandFactoryBase *s_pFirstCommandFactory;
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};
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template < class T >
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class CVsDCCCommandFactory : public CVsMayaCommandFactoryBase
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{
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typedef CVsMayaCommandFactoryBase BaseClass;
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public:
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// Constructor
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CVsDCCCommandFactory( const char *pCommandName ) : BaseClass( pCommandName ) {}
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// Called when we register
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virtual void OnRegister( XSI::PluginRegistrar& in_reg )
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{
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m_Singleton.OnRegister( in_reg );
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}
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T m_Singleton;
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};
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//-----------------------------------------------------------------------------
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// Helper macro to instantiate a command
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//-----------------------------------------------------------------------------
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#define INSTALL_MAYA_COMMAND( _commandClassName, _stringName ) \
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static CVsDCCCommandFactory< _commandClassName > s_##_commandClassName##_Factory( #_stringName ); \
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XSIPLUGINCALLBACK XSI::CStatus _stringName##_Init( const XSI::CRef& in_context ) \
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{ \
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if ( !g_pDCCMain->IsInitialized() ) \
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return XSI::CStatus::Fail; \
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XSI::Context ctx(in_context); \
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s_##_commandClassName##_Factory.m_Singleton.SpecifySyntax( ctx ); \
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return XSI::CStatus::OK; \
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} \
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XSIPLUGINCALLBACK XSI::CStatus _stringName##_Execute( XSI::CRef& in_context ) \
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{ \
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if ( !g_pDCCMain->IsInitialized() ) \
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return XSI::CStatus::Fail; \
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XSI::Context ctxt( in_context ); \
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s_##_commandClassName##_Factory.m_Singleton.doIt( ctxt ); \
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} \
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#endif // VSMAYACOMMAND_H
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