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tdeutils/khexedit/hextoolwidget.cc

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11 KiB

/*
* khexedit - Versatile hex editor
* Copyright (C) 1999 Espen Sand, espensa@online.no
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <kdialog.h>
#include <klocale.h>
#include "hextoolwidget.h"
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqlineedit.h>
#include <tqcheckbox.h>
#include <tqcombobox.h>
CHexToolWidget::CHexToolWidget( TQWidget *parent, const char *name )
: TQFrame( parent, name )
{
setFrameStyle( TQFrame::Panel | TQFrame::Raised );
setLineWidth( 1 );
TQString text;
mUtilBox = new TQGridLayout( this, 5, 4, KDialog::marginHint(), KDialog::spacingHint() );
mUtilBox->setColStretch( 3, 10 );
TQString msg1[4] =
{
i18n("Signed 8 bit:"), i18n("Unsigned 8 bit:"),
i18n("Signed 16 bit:"), i18n("Unsigned 16 bit:")
};
TQString msg2[4] =
{
i18n("Signed 32 bit:"), i18n("Unsigned 32 bit:"),
i18n("32 bit float:"), i18n("64 bit float:")
};
TQString msg3[4] =
{
i18n("Hexadecimal:"), i18n("Octal:"),
i18n("Binary:"), i18n("Text:")
};
TQGridLayout *ValuesBox = new TQGridLayout( this, 4, 6, 0, KDialog::spacingHint() );
ValuesBox->setColStretch( 2, 10 );
ValuesBox->setColStretch( 5, 10 );
for( int i=0; i<4; i++ )
{
TQLabel *Label = new TQLabel( msg1[i], this );
Label->setAlignment( AlignRight|AlignVCenter );
ValuesBox->addWidget( Label, i, 0 );
mText1[i] = new TQLineEdit( this );
mText1[i]->setReadOnly( true );
mText1[i]->setAlignment( AlignRight );
ValuesBox->addWidget( mText1[i], i, 1 );
Label = new TQLabel( msg2[i], this );
Label->setAlignment( AlignRight|AlignVCenter );
ValuesBox->addWidget( Label, i, 3 );
mText2[i] = new TQLineEdit( this );
mText2[i]->setReadOnly( true );
mText2[i]->setAlignment( AlignRight );
ValuesBox->addWidget( mText2[i], i, 4 );
Label = new TQLabel( msg3[i], this );
Label->setAlignment( AlignRight|AlignVCenter );
mUtilBox->addWidget( Label, i, 1 );
mText3[i] = new TQLineEdit( this );
mText3[i]->setReadOnly( true );
mText3[i]->setAlignment( AlignRight );
mUtilBox->addWidget( mText3[i], i, 2 );
}
TQBoxLayout * SettingsBox = new TQHBoxLayout( this, 0, KDialog::spacingHint() );
text = i18n("Show little endian decoding");
mCheckIntelFormat = new TQCheckBox( text, this );
mCheckIntelFormat->setMinimumSize( mCheckIntelFormat->sizeHint() );
connect( mCheckIntelFormat, TQT_SIGNAL(clicked()), this, TQT_SLOT(intelFormat()) );
SettingsBox->addWidget( mCheckIntelFormat, 0, AlignVCenter );
mCheckIntelFormat->setChecked( // default value to please endian system users
#ifdef WORDS_BIGENDIAN
false // Big Endian: SUN, Motorola machines (amongst others)
#else
true // Little Endian: Intel, Alpha
#endif
);
// TODO: make this a pulldown box, adding PDP endianess
text = i18n("Show unsigned as hexadecimal");
mCheckHexadecimal = new TQCheckBox( text, this );
mCheckHexadecimal->setMinimumSize( mCheckHexadecimal->sizeHint() );
connect( mCheckHexadecimal, TQT_SIGNAL(clicked()), this, TQT_SLOT(unsignedFormat()) );
SettingsBox->addWidget( mCheckHexadecimal, 0, AlignVCenter );
mUtilBox->addMultiCellLayout( ValuesBox, 0, 3, 0, 0, AlignLeft|AlignVCenter );
mUtilBox->addMultiCellLayout( SettingsBox, 4, 4, 0, 0, AlignLeft|AlignVCenter );
//
// Variable bitwidth. Based on Craig Graham's work.
//
TQLabel *bitLabel = new TQLabel( i18n("Stream length:"), this );
bitLabel->setAlignment( AlignRight|AlignVCenter );
mUtilBox->addWidget( bitLabel, 4, 1 );
mBitCombo = new TQComboBox( false, this );
text = i18n("Fixed 8 Bit" );
mBitCombo->insertItem( text );
for( int i=0; i<16; i++ )
{
text.sprintf("%u ", i+1 );
text += i==0 ? i18n("Bit Window") : i18n("Bits Window");
mBitCombo->insertItem( text );
}
mBitCombo->setMinimumSize( mBitCombo->sizeHint() );
connect( mBitCombo, TQT_SIGNAL(activated(int)), TQT_SLOT(bitWidthChanged(int)));
mUtilBox->addWidget( mBitCombo, 4, 2 );
/* load font metrics */
fontChanged();
mUtilBox->activate();
connect( kapp, TQT_SIGNAL( kdisplayFontChanged() ),
TQT_SLOT( fontChanged() ) );
mCursorState.valid = false;
mViewHexCaps = true;
setMinimumSize( sizeHint() );
show();
}
CHexToolWidget::~CHexToolWidget( void )
{
}
void CHexToolWidget::writeConfiguration( KConfig &config )
{
config.setGroup("Conversion" );
config.writeEntry("LittleEndian", mCheckIntelFormat->isChecked() );
config.writeEntry("UnsignedAsHex", mCheckHexadecimal->isChecked() );
config.writeEntry("StreamWindow", mBitCombo->currentItem() );
}
void CHexToolWidget::readConfiguration( KConfig &config )
{
config.setGroup("Conversion" );
bool s1 = config.readBoolEntry( "LittleEndian", true );
bool s2 = config.readBoolEntry( "UnsignedAsHex", false );
int val = config.readNumEntry( "StreamWindow", 0 );
mCheckIntelFormat->setChecked( s1 );
mCheckHexadecimal->setChecked( s2 );
mBitCombo->setCurrentItem( val );
}
//++cg[6/7/1999]: handler for change signal from bit width combo
void CHexToolWidget::bitWidthChanged( int /*i*/ )
{
cursorChanged( mCursorState );
}
//
// Variable bitwidth. Based on Craig Graham's work.
//
// ++cg[6/7/1999]: Read n bit's from a bitstream (allows N length bit
// values to cross byte boundarys).
//
unsigned long CHexToolWidget::bitValue( SCursorState &state, int n )
{
static const unsigned char bitmask[9] =
{
0, 1<<7, 3<<6, 7<<5, 15<<4, 31<<3, 63<<2, 127<<1, 255
};
unsigned long rtn = 0;
unsigned char *byte = state.data;
int bit = 7 - state.cell;
while( n )
{
//
// c hold's current byte, shifted to put remaining bits in
// high bits of byte
//
unsigned char c = *byte << bit;
//
// if there are n bits or more remaining in this byte, we
// swallow n bits, otherwise we swallow as many
// bits as we can (8-bit)
//
int this_time = ((8-bit)>=n)?n:(8-bit);
//
// mask to get only the bit's we're swallowing
//
c &= bitmask[this_time];
//
// shift down to get bit's in low part of byte
//
c >>= 8-this_time;
//
// shift up previous results to make room and OR in the extracted bits.
//
rtn = (rtn<<this_time)|c;
n -= this_time; // update the count of remaining bits
bit += this_time; // tell the stream we swallowed some swallowed bits
//
// if we've swallowed 8 bits, we zero the bit count and move on to
// the next byte
//
if( bit==8 )
{
bit=0;
byte++;
}
}
return( rtn );
}
void CHexToolWidget::cursorChanged( SCursorState &state )
{
if( state.valid == true )
{
TQString buf;
// change by Kossebau[03.11.2003]:
// checking for system endianess, using the compiler for the byte interpretation and cutting bloaded code
// TODO: add PDP endianess
void *P8Bit, *P16Bit, *P32Bit, *P64Bit;
// ensure strict alignment for double as needed on some architectures (e.g. PA-RISC)
typedef union { unsigned char b[8]; double d; } aligned_t;
aligned_t Data;
if(
#ifdef WORDS_BIGENDIAN
! // Assume Big Endian. This is the case for SUN machines (amongst others)
#else
// Assume Little Endian. This is the case for the Intel architecture.
#endif
mCheckIntelFormat->isChecked() )
{
// take it as it is
memcpy( Data.b, state.data, 8 );
P8Bit = P16Bit = P32Bit = P64Bit = Data.b;
}
else
{
// reverse order
for( int i=0,j=7; i<8; ++i,--j )
Data.b[i] = state.data[j];
P8Bit = &Data.b[7];
P16Bit = &Data.b[6];
P32Bit = &Data.b[4];
P64Bit = Data.b;
}
bool NoHex = !mCheckHexadecimal->isChecked();
// unsigned 8 bit
buf.sprintf( NoHex?"%u":mViewHexCaps?"0x%02X":"0x%02x", *(unsigned char*)P8Bit );
mText1[1]->setText( buf );
// signed int 8 bit
buf.sprintf( "%d", *(signed char*)P8Bit );
mText1[0]->setText( buf );
// unsigned int 16 bit
buf.sprintf( NoHex?"%u":mViewHexCaps?"0x%04X":"0x%04x", *(unsigned short*)P16Bit );
mText1[3]->setText( buf );
// signed int 16 bit
buf.sprintf( "%d", *(short*)P16Bit );
mText1[2]->setText( buf );
// unsigned int 32 bit
buf.sprintf( NoHex?"%u":mViewHexCaps?"0x%08X":"0x%08x", *(unsigned int*)P32Bit );
mText2[1]->setText( buf );
// signed int 32 bit
buf.sprintf( "%d", *(int*)P32Bit );
mText2[0]->setText( buf );
// float 32 bit
buf.sprintf( "%E", *(float*)P32Bit );
mText2[2]->setText( buf );
// float 64 bit
buf.sprintf( "%E", *(double*)P64Bit );
mText2[3]->setText( buf );
int numBits = mBitCombo->currentItem();
if( numBits == 0 )
{
//
// This is the original stuff
//
unsigned char data = (unsigned char)state.data[0];
buf.sprintf( mViewHexCaps?"%02X":"%02x", data );
mText3[0]->setText( buf );
buf.sprintf( "%03o", data );
mText3[1]->setText( buf );
char bitBuf[32];
for( int i = 0; i < 8; i++ )
bitBuf[7-i] = (data&(1<<i)) ? '1' : '0';
bitBuf[8] = 0;
mText3[2]->setText( TQString(bitBuf) );
}
else
{
//
// Variable bitwidth. Based on Craig Graham's work.
//
unsigned long data = bitValue( state, numBits );
buf.sprintf( mViewHexCaps?"%02lX %02lX":"%02lx %02lx", (data>>8)&0xFF, data&0xFF );
mText3[0]->setText( buf );
buf.sprintf( "%03lo %03lo", (data>>8)&0xFF, data&0xFF );
mText3[1]->setText( buf );
char bitBuf[32];
for( int i = 0; i<numBits; i++ )
bitBuf[numBits-i-1] = (data&(1L<<i)) ? '1' : '0';
bitBuf[numBits] = 0;
mText3[2]->setText( TQString(bitBuf) );
}
// Fix by Sergey A. Sukiyazov
unsigned char data[2] = { 0, 0 };
data[0] = state.charValid == false ? '.' :
(char)((unsigned char)state.data[0]&0xff );
buf = TQString::fromLocal8Bit( (const char *)data );
mText3[3]->setText( buf );
}
else
{
TQString str;
for( int i=0; i<4; i++)
{
mText1[i]->setText( str );
mText2[i]->setText( str );
mText3[i]->setText( str );
}
}
mCursorState = state;
}
void CHexToolWidget::fontChanged( void )
{
TQFontMetrics fm( mText1[0]->font() );
int W1 = fm.width( "XXXXXXXX" );
int W2 = fm.width( "XXXXXXXXXXXX" );
int W3 = fm.width( "888888888888888888" );
for( int i=0; i<4; i++ )
{
mText1[i]->setFixedWidth( W1 );
mText2[i]->setFixedWidth( W2 );
mText3[i]->setFixedWidth( W3 );
}
}
void CHexToolWidget::intelFormat( void )
{
cursorChanged( mCursorState );
}
void CHexToolWidget::unsignedFormat( void )
{
cursorChanged( mCursorState );
}
void CHexToolWidget::resizeEvent( TQResizeEvent */*e*/ )
{
}
void CHexToolWidget::closeEvent( TQCloseEvent *e )
{
e->accept();
emit closed();
}
#include "hextoolwidget.moc"