138 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			138 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
/*
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 * BARGRAPH.H
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 *
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 *  Header file for ArchiveLib 2.0
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 *
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 *  Copyright (c) 1994-1996 Greenleaf Software, Inc.
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 *  All Rights Reserved
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 *
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 * DESCRIPTION
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 *
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 *  The class definition for ALBarGraph is found here.
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 *
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 * CLASS DEFINITIONS:
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 *
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 *  class ALBarGraph
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 *
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 * REVISION HISTORY
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 *
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 *  May 26, 1994  1.0A  : First release
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 *
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 *  January 9, 1995  1.01A : The bargraph class was modified so that it
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 *                           could be used in a DOS DLL.  This mostly
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 *                           meant adding those far definitions to the
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 *                           member function prototypes.  It also meant
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 *                           creation of ALBarGraph::new().
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 *
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 *  February 14, 1996  2.0: New release
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 */
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#ifndef _BARGRAPH_H
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#define _BARGRAPH_H
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#include "arclib.h"
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/*
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 * class ALBarGraph : public ALMonitor
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 *
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 * DESCRIPTION
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 *
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 *  This is a utility class.  The constructor opens a file for input,
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 *  and keeps track of whether it was already open or not.  The destructor
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 *  will automatically close the file if it was closed when the
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 *  ctor was invoked.
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 *
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 * DATA MEMBERS
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 *
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 *  miCurrentOffset   : The current offset of the bargraph, in screen
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 *                      units.  Usually the bar itself is 20 characters
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 *                      long, in which case this value will be somewhere
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 *                      between 0 and 19.
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 *
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 *  miBarLength       : The length of the bar, defined when the 
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 *                      constructor is called.  This is a const member,
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 *                      which means we can leave it public.
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 *
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 *  mrStream          : Reference to an output stream.  This is the
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 *                      stream where the bargraph gets drawn.
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 *                    
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 * MEMBER FUNCTIONS
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 *
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 *  ALBarGraph()        : The constructor.
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 *  ~ALBarGraph()       : Virtual destructor.
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 *  Progress()          : The progress routine, where the bargraph
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 *                        gets updated.
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 *  ArchiveOperation()  : The routine that gets called when files
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 *                        are opened, closed, etc.
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 *
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 * REVISION HISTORY
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 *
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 *  May 26, 1994  1.0A  : First release
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 *
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 *  February 14, 1996  2.0A : New release
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 */
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/*
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 * Microsoft refuses to define cout if you are building a
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 * windows DLL.  So, we work around that here by preventing
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 * anyone from using the bargraph class from a DLL.  That's
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 * okay anyway, since Microsoft doesn't have a 16 bit
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 * DLL RTL.
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 */
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#if !defined( AL_MICROSOFT) || !defined( AL_BUILDING_DLL ) || ( defined( AL_MICROSOFT ) && defined( AL_FLAT_MODEL ) )
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#if defined( __cplusplus )
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class AL_CLASS_TYPE ALBarGraph : public ALMonitor {  /* Tag public class */
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/*
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 * Constructors, destructors, and friend classes
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 */
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     public :
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          AL_PROTO ALBarGraph( ALMonitorType monitor_type,
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                               ostream AL_DLL_FAR& stream = cout,
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                               int bar_length = 25 );
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          virtual AL_PROTO ~ALBarGraph();
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#if defined( AL_USING_DLL ) || defined( AL_BUILDING_DLL )
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        void AL_DLL_FAR * AL_PROTO operator new( size_t size );
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#endif
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/*
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 * The copy constructor and assignment operator do not exist.
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 */
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     protected :
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          AL_PROTO ALBarGraph( const ALBarGraph AL_DLL_FAR & );
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          ALBarGraph AL_DLL_FAR & AL_PROTO operator=( const ALBarGraph AL_DLL_FAR & );
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/*
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 * Member functions
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 */
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     protected :
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          virtual void AL_PROTO Progress( long object_so_far,
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                                          ALStorage AL_DLL_FAR & object );
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          virtual void AL_PROTO
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          ArchiveOperation( ALArchiveOperation operation,
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                            ALArchive AL_DLL_FAR *archive,
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                            ALEntry AL_DLL_FAR *job );
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/*
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 * Data Members
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 */
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     protected :
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          int miCurrentOffset;
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          const int miBarLength;
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          ostream AL_DLL_FAR & mrStream;
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     public :
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          AL_CLASS_TAG( _ALBarGraphTag );
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};
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#else  /* #if defined( __cplusplus ) ... */
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AL_LINKAGE hALMonitor AL_FUNCTION
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newALBarGraph( enum ALMonitorType monitor_type );
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#endif /* #if defined( __cplusplus ) ... #else ... */
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#endif /* #if !defined( AL_MICROSOFT) || !defined( AL_BUILDING_DLL ) */
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#endif /* #ifdef _BARGRAPH_H          */
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