void QHexEdit::adjust()
{
// recalc Graphics
if (_addressArea)
{
_addrDigits = addressWidth();
_pxPosHexX = _pxGapAdr + _addrDigits*_pxCharWidth + _pxGapAdrHex;
}
else
_pxPosHexX = _pxGapAdrHex;
_pxPosAdrX = _pxGapAdr;
_pxPosAsciiX = _pxPosHexX + HEXCHARS_IN_LINE * _pxCharWidth + _pxGapHexAscii;
// set horizontalScrollBar()
int pxWidth = _pxPosAsciiX;
if (_asciiArea)
pxWidth += BYTES_PER_LINE*_pxCharWidth;
horizontalScrollBar()->setRange(0, pxWidth - viewport()->width());
horizontalScrollBar()->setPageStep(viewport()->width());
// set verticalScrollbar()
_rowsShown = ((viewport()->height()-4)/_pxCharHeight);
int lineCount = (int)(_chunks->size() / (qint64)BYTES_PER_LINE) + 1;
verticalScrollBar()->setRange(0, lineCount - _rowsShown);
verticalScrollBar()->setPageStep(_rowsShown);
int value = verticalScrollBar()->value();
_bPosFirst = (qint64)value * BYTES_PER_LINE;
_bPosLast = _bPosFirst + (qint64)(_rowsShown * BYTES_PER_LINE) - 1;
if (_bPosLast >= _chunks->size())
_bPosLast = _chunks->size() - 1;
readBuffers();
setCursorPosition(_cursorPosition);
}
void QHexEdit::resizeEvent(QResizeEvent *)
{
if (_dynamicBytesPerLine)
{
int pxFixGaps = 0;
if (_addressArea)
pxFixGaps = addressWidth() * _pxCharWidth + _pxGapAdr;
pxFixGaps += _pxGapAdrHex;
if (_asciiArea)
pxFixGaps += _pxGapHexAscii;
// +1 because the last hex value do not have space. so it is effective one char more
int charWidth = (viewport()->width() - pxFixGaps ) / _pxCharWidth + 1;
// 2 hex alfa-digits 1 space 1 ascii per byte = 4; if ascii is disabled then 3
// to prevent devision by zero use the min value 1
setBytesPerLine(std::max(charWidth / (_asciiArea ? 4 : 3),1));
}
adjust();
}
QString QHexEdit::toReadable(const QByteArray &ba)
{
QString result;
for (int i=0; i < ba.size(); i += 16)
{
QString addrStr = QString("%1").arg(_addressOffset + i, addressWidth(), 16, QChar('0'));
QString hexStr;
QString ascStr;
for (int j=0; j<16; j++)
{
if ((i + j) < ba.size())
{
hexStr.append(" ").append(ba.mid(i+j, 1).toHex());
char ch = ba[i + j];
if ((ch < 0x20) || (ch > 0x7e))
ch = '.';
ascStr.append(QChar(ch));
}
}
result += addrStr + " " + QString("%1").arg(hexStr, -48) + " " + QString("%1").arg(ascStr, -17) + "\n";
}
return result;
}
