text_file_handler.cpp

以wxWidget撰寫的簡繁體中文轉換程式 已在Linux上編譯過

/* 
 * Copyright (C) 2006, Dung-Bang Tsai
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * ( If you wnat to use this library for commercial use, 
 *	  feel free to contact me, just cost some money, I could sell
 *		you the code without GPL license, so you could use this code
 *		for your product without public your source code.  				)
 *
 * Authors:
 *	Tsai, Dung-Bang <[e-mail]>
 *			
*			2006/03/10		at NCKU physics
 */

#include "text_file_handler.h" 
#include <fstream>

void text_file_handler::Read(size_t n_byte)
{	
	wxFFile fp(filename);
	
	raw_n_bytes = fp.Length();  
	
	if(n_byte >= raw_n_bytes || n_byte == 0)
	{ 
		raw_buffer_n_bytes = raw_n_bytes;
	}
	else
	{ 
		raw_buffer_n_bytes = n_byte;
	}

	raw_data = new unsigned char[raw_buffer_n_bytes + 10];
	
	raw_buffer_n_bytes = fp.Read(raw_data, raw_buffer_n_bytes);	

	fp.Close();
	
	code_page.SetSrcChar(this->raw_data);
	code_page.SetSrcBytes(this->raw_buffer_n_bytes);    
	code_page.SetTestBytes(this->raw_buffer_n_bytes);  // Fix me when config file down
	code_page.SetOutputString(*string);
}

void text_file_handler::Detect_code_page()
{	
	int code_t;
	if(code > 0) return;
		

	code_t = code_page.UnicodeBOM_test();
	if(code_t > 0){ code = code_t; BOM = true; return ;}  // Test BOM first.
	
	code_t = code_page.Unicode_signature_test();		// Test if Unicode
	if(code_t > 0){ code = code_t; return ;}
	
	if(code_page.IsBinaryData()==true )  // If binary,error.
	{code_t = -1; return;}	

	if( code_page.IsASCII() ){ code = ASCII_CODE; return ;}  // Test if ASCII
	code = Big5_UAO_CODE;
}
void text_file_handler::ConvertFromSrcToString()
{
	code_page.ConvertFromSrctoResultString(code);
	newline = string->GetNewLineType();
	if(raw_data!=NULL){delete raw_data; raw_data = NULL;}
}