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77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Registrar.cpp
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James Crook
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Audacity is free software.
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This file is licensed under the wxWidgets license, see License.txt
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********************************************************************//**
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\class Registrar
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\brief Registrar is a class that other classes register resources of
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various kinds with. It makes a system that is much more amenable to
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plugging in of new resources.
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*//********************************************************************/
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#include <wx/wx.h>
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#include "Registrar.h"
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Registrar * pRegistrar = NULL;
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// By defining the external function and including it here, we save ourselves maintaing two lists.
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// Also we save ourselves recompiling Registrar each time the classes that regiser change.
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// Part of the idea is that the Registrar knows very little about the classes that
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// register with it.
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#define DISPATCH( Name ) extern int Name##Dispatch( Registrar & R, t_RegistrarDispatchType Type );\
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Name##Dispatch( *pRegistrar, Type )
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// Not a class function, otherwise the functions called
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// are treated as belonging to the class.
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int RegistrarDispatch( t_RegistrarDispatchType Type )
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{
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wxASSERT( pRegistrar != NULL );
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DISPATCH( SkewedRuler );
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DISPATCH( MidiArtist );
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DISPATCH( WaveArtist );
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DISPATCH( EnvelopeArtist );
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DISPATCH( LabelArtist );
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DISPATCH( DragGridSizer );
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DISPATCH( TrackPanel2 );
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return 0;
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}
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// Start()
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// Static function. Allocates Registrar.
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void Registrar::Start()
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{
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wxASSERT( pRegistrar ==NULL );
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pRegistrar = new Registrar();
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RegistrarDispatch( RegResource );
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RegistrarDispatch( RegArtist );
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RegistrarDispatch( RegDataType );
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RegistrarDispatch( RegCommand );
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RegistrarDispatch( RegMenuItem );
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}
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// Finish()
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// Static function. DeAllocates Registrar.
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void Registrar::Finish()
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{
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wxASSERT( pRegistrar !=NULL );
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delete pRegistrar;
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pRegistrar = NULL;
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}
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void Registrar::ShowNewPanel()
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{
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wxASSERT( pRegistrar !=NULL );
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if( pRegistrar->pShowFn != NULL)
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pRegistrar->pShowFn();
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} |