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330 lines
6.3 KiB
330 lines
6.3 KiB
/*
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* khexedit - Versatile hex editor
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* Copyright (C) 1999 Espen Sand, espensa@online.no
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include <ctype.h>
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#include <stdio.h>
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#include <tqwidget.h>
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#include "hexvalidator.h"
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CHexValidator::CHexValidator( TQWidget *parent, EState state,
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const char *name )
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:TQValidator( TQT_TQOBJECT(parent), name )
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{
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setState( state );
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}
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CHexValidator::~CHexValidator( void )
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{
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}
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TQValidator::State CHexValidator::validate( TQString &string, int &/*pos*/ ) const
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{
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if( mState == hexadecimal )
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{
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for( uint i=0; i < string.length(); i++ )
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{
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int val = string[i].latin1();
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if( isxdigit( val ) == 0 && isspace( val ) == 0 )
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{
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return( TQValidator::Invalid );
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}
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}
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return( TQValidator::Valid );
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}
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if( mState == decimal )
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{
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for( uint i=0; i < string.length(); i++ )
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{
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int val = string[i].latin1();
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if( isdigit( val ) == 0 && isspace( val ) == 0 )
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{
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return( TQValidator::Invalid );
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}
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}
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return( TQValidator::Valid );
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}
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else if( mState == octal )
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{
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for( uint i=0; i < string.length(); i++ )
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{
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int val = string[i].latin1();
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if( (isdigit( val ) == 0 || val == '8' || val == '9') &&
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isspace( val ) == 0 )
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{
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return( TQValidator::Invalid );
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}
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}
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return( TQValidator::Valid );
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}
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else if( mState == binary )
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{
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for( uint i=0; i < string.length(); i++ )
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{
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int val = string[i].latin1();
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if( val != '0' && val != '1' && isspace( val ) == 0 )
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{
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return( TQValidator::Invalid );
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}
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}
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return( TQValidator::Valid );
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}
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else if( mState == regularText )
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{
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return( TQValidator::Valid );
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}
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else
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{
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return( TQValidator::Invalid );
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}
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}
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void CHexValidator::setState( EState state )
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{
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mState = state;
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}
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void CHexValidator::convert( TQByteArray &dest, const TQString &src )
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{
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uint value;
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uint k=0;
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if( mState == hexadecimal )
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{
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dest.resize(0);
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char buf[3];
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for( uint i=0; i < src.length(); i++ )
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{
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int val = src[i].latin1();
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if( isxdigit(val) )
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{
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buf[k++] = val;
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if( k == 2 )
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{
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buf[k] = 0;
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sscanf( buf, "%X", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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k = 0;
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}
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}
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}
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if( k == 1 )
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{
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buf[1] = buf[0];
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buf[0] = '0';
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buf[2] = 0;
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sscanf( buf, "%X", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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}
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}
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else if( mState == decimal )
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{
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dest.resize(0);
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char buf[4];
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for( uint i=0; i < src.length(); i++ )
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{
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int val = src[i].latin1();
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if( isdigit(val) )
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{
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buf[k++] = val;
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if( k == 3 )
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{
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buf[k] = 0;
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sscanf( buf, "%u", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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k = 0;
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}
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}
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}
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if( k == 1 || k == 2 )
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{
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if( k == 1 )
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{
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buf[2] = buf[0];
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buf[0] = buf[1] = '0';
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}
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else
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{
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buf[2] = buf[1];
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buf[1] = buf[0];
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buf[0] = '0';
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}
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buf[3] = 0;
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sscanf( buf, "%u", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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}
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}
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else if( mState == octal )
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{
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dest.resize(0);
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char buf[4];
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for( uint i=0; i < src.length(); i++ )
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{
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int val = src[i].latin1();
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if( isdigit(val) )
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{
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buf[k++] = val;
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if( k == 3 )
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{
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if( buf[0] > '3' ) { buf[0] = '3'; }
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buf[k] = 0;
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sscanf( buf, "%o", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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k = 0;
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}
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}
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}
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if( k == 1 || k == 2 )
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{
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if( k == 1 )
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{
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buf[2] = buf[0];
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buf[0] = buf[1] = '0';
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}
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else
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{
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buf[2] = buf[1];
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buf[1] = buf[0];
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buf[0] = '0';
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}
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buf[3] = 0;
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sscanf( buf, "%o", &value );
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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}
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}
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else if( mState == binary )
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{
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dest.resize(0);
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char buf[9];
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for( uint i=0; i < src.length(); i++ )
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{
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int val = src[i].latin1();
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if( isdigit(val) )
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{
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buf[k++] = val;
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if( k == 8 )
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{
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value = 0;
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for( uint j=0; j < 8; j++ )
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{
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value |= (buf[8-j-1] == '1') ? 1<<j : 0;
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}
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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k = 0;
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}
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}
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}
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if( k > 0 )
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{
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value = 0;
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for( uint j=0; j < k; j++ )
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{
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value |= (buf[k-j-1] == '1') ? 1<<j : 0;
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}
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dest.resize( dest.size()+1 );
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dest[ dest.size()-1 ] = value;
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}
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}
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else if( mState == regularText )
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{
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dest.resize(src.length());
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for( uint i=0; i < src.length(); i++ )
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{
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dest[i] = src[i].latin1();
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}
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}
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else
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{
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dest.resize(0);
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}
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}
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void CHexValidator::format( TQString &dest, const TQByteArray &src )
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{
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for( uint i=0; i<src.size(); ++i )
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{
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unsigned char srcCh = (unsigned char)src[i];
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TQString formattedCh;
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switch( mState )
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{
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case hexadecimal:
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formattedCh = zeroExtend( TQString::number( srcCh, 16 ), 2 );
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break;
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case decimal:
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formattedCh = zeroExtend( TQString::number( srcCh, 10), 3 );
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break;
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case octal:
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formattedCh = zeroExtend( TQString::number( srcCh, 8), 3 );
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break;
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case binary:
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formattedCh = zeroExtend( TQString::number( srcCh, 2), 8 );
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break;
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case regularText:
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formattedCh = TQString( TQChar( srcCh ) );
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break;
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}
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dest += formattedCh + " ";
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}
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}
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TQString CHexValidator::zeroExtend( const TQString &src, unsigned destLen) const
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{
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if( src.length() >= destLen )
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return src;
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TQString zeroes;
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zeroes.fill( '0', destLen - src.length() );
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return zeroes + src;
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}
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#include "hexvalidator.moc"
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