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135 lines
3.3 KiB
135 lines
3.3 KiB
/***************************************************************************
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kvaluecolumn.cpp - description
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-------------------
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begin : Mit Sep 3 2003
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copyright : (C) 2003 by Friedrich W. H. Kossebau
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email : Friedrich.W.H@Kossebau.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License version 2 as published by the Free Software Foundation. *
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* *
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***************************************************************************/
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// qt specific
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#include <tqpainter.h>
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// lib specific
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#include "kcolumnsview.h"
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#include "kbuffercursor.h"
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#include "kbufferlayout.h"
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#include "kbufferranges.h"
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#include "kvaluecolumn.h"
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#include "helper.h"
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#include "kcharcodec.h"
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using namespace KHE;
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static const KCoding DefaultCoding = HexadecimalCoding;
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static const KCoding NotDefaultCoding = DecimalCoding;
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static const int DefaultBinaryGapWidth = 1;
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KValueColumn::KValueColumn( KColumnsView *CV, KDataBuffer *B, TDEBufferLayout *L, TDEBufferRanges *R )
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: TDEBufferColumn( CV, B, L, R ),
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Coding( NotDefaultCoding ),
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ByteCodec( 0 ),
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BinaryGapWidth( DefaultBinaryGapWidth )
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{
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setCoding( DefaultCoding );
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}
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KValueColumn::~KValueColumn()
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{
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}
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bool KValueColumn::setCoding( KCoding C )
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{
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// no changes?
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if( Coding == C )
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return false;
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delete ByteCodec;
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Coding = C;
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ByteCodec = KByteCodec::createCodec( Coding );
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CodedByte.setLength( ByteCodec->encodingWidth() );
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// recalculate depend sizes
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recalcByteWidth();
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if( PosX )
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recalcX();
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return true;
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}
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bool KValueColumn::setBinaryGapWidth( KPixelX BGW )
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{
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// no changes?
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if( BinaryGapWidth == BGW )
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return false;
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BinaryGapWidth = BGW;
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// recalculate depend sizes
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recalcByteWidth();
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if( PosX )
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recalcX();
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return true;
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}
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void KValueColumn::recalcByteWidth()
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{
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ByteWidth = ByteCodec->encodingWidth() * DigitWidth;
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if( Coding == BinaryCoding )
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{
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BinaryHalfOffset = 4 * DigitWidth + BinaryGapWidth;
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ByteWidth += BinaryGapWidth;
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}
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recalcVerticalGridX();
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}
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// perhaps sometimes there will be a grammar
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void KValueColumn::paintEditedByte( TQPainter *P, char Byte, const TQString &EditBuffer )
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{
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KHEChar B = Codec->decode( Byte );
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const TQColorGroup &CG = View->colorGroup();
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P->fillRect( 0,0,ByteWidth,LineHeight, TQBrush(colorForChar(B),TQt::SolidPattern) );
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drawCode( P, EditBuffer, CG.base() );
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}
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void KValueColumn::drawByte( TQPainter *P, char Byte, KHEChar /*B*/, const TQColor &Color ) const
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{
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ByteCodec->encode( CodedByte, 0, Byte );
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drawCode( P, CodedByte, Color );
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}
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void KValueColumn::drawCode( TQPainter *P, const TQString &Code, const TQColor &Color ) const
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{
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P->setPen( Color );
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if( Coding == BinaryCoding )
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{
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// leave a gap in the middle
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P->drawText( 0, DigitBaseLine, Code.left(4) );
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P->drawText( BinaryHalfOffset, DigitBaseLine, Code.right(4) );
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}
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else
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P->drawText( 0, DigitBaseLine, Code );
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}
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