rcfile.h

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/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  This program is free software: you can redistribute it and/or modify
**  it under the terms of the GNU General Public License as published by
**  the Free Software Foundation, either version 3 of the License, or
**  (at your option) any later version.
**
**  This program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
/***********************************************************************************************
 ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
 ***********************************************************************************************
 *                                                                                             *
 *                 Project Name : wwlib                                                        *
 *                                                                                             *
 *                     $Archive:: /Commando/Code/wwlib/rcfile.h                               $*
 *                                                                                             *
 *                       Author:: Greg Hjelstrom                                               *
 *                                                                                             *
 *                     $Modtime:: 11/02/01 1:21p                                              $*
 *                                                                                             *
 *                    $Revision:: 8                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
#if defined(_MSC_VER)
#pragma once
#endif
 
#ifndef RCFILE_H
#define RCFILE_H
 
#include "always.h"
#include "wwfile.h"
#include "win.h"
 
/*
** ResourceFileClass
** This is a file class which allows you to read from a binary file that you have
** imported into your resources.  Just import the file as a custom resource of the
** type "File".  Replace the "id" of the resource with its filename (change
** IDR_FILE1 to "MyFile.w3d") and then you will be able to access it by using this
** class.
*/
class ResourceFileClass : public FileClass
{
    public:
 
        ResourceFileClass(HMODULE hmodule, char const *filename);
        virtual ~ResourceFileClass(void);
        
        virtual char const * File_Name(void) const                 { return ResourceName; }
        virtual char const * Set_Name(char const *filename);
        virtual int Create(void)                                          { return false; }
        virtual int Delete(void)                                          { return false; }
        virtual bool Is_Available(int /*forced=false*/)             { return Is_Open (); }
        virtual bool Is_Open(void) const                                 { return (FileBytes != NULL); } 
        
        virtual int Open(char const * /*fname*/, int /*rights=READ*/)   { return Is_Open(); }
        virtual int Open(int /*rights=READ*/)                           { return Is_Open(); }
 
        virtual int Read(void *buffer, int size);
        virtual int Seek(int pos, int dir=SEEK_CUR);
        virtual int Size(void);
        virtual int Write(void const * /*buffer*/, int /*size*/)   { return 0; }
        virtual void Close(void)                                           { }
        virtual void Error(int error, int canretry = false, char const * filename=NULL);
        virtual void Bias(int start, int length=-1) {}
 
        virtual unsigned char *Peek_Data(void) const                   { return FileBytes; }
 
    protected:
 
        char *              ResourceName;
 
        HMODULE             hModule;
        
        unsigned char * FileBytes;
        unsigned char * FilePtr;
        unsigned char * EndOfFile;
 
};
 
 
#endif