QString QHexEdit::selectionToReadableString()
{
QByteArray ba;
for (qint64 i = getSelectionBegin(); i <= getSelectionEnd(); i++)
ba.append(reader ? reader(i) : 0);
return toReadable(ba);
}
void QHexEditPrivate::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
// draw some patterns if needed
painter.fillRect(event->rect(), this->palette().color(QPalette::Base));
if (_addressArea)
painter.fillRect(QRect(_xPosAdr, event->rect().top(), _xPosHex - GAP_ADR_HEX + 2, height()), _addressAreaColor);
if (_asciiArea)
{
int linePos = _xPosAscii - (GAP_HEX_ASCII / 2);
painter.setPen(Qt::gray);
painter.drawLine(linePos, event->rect().top(), linePos, height());
}
painter.setPen(this->palette().color(QPalette::WindowText));
// calc position
int firstLineIdx = ((event->rect().top()/ _charHeight) - _charHeight) * BYTES_PER_LINE;
if (firstLineIdx < 0)
firstLineIdx = 0;
int lastLineIdx = ((event->rect().bottom() / _charHeight) + _charHeight) * BYTES_PER_LINE;
if (lastLineIdx > _xData.size())
lastLineIdx = _xData.size();
int yPosStart = ((firstLineIdx) / BYTES_PER_LINE) * _charHeight + _charHeight;
// paint address area
if (_addressArea)
{
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
QString address = QString("%1")
.arg(lineIdx + _xData.addressOffset(), _xData.realAddressNumbers(), 16, QChar('0'));
painter.drawText(_xPosAdr, yPos, address);
}
}
// paint hex area
QByteArray hexBa(_xData.data().mid(firstLineIdx, lastLineIdx - firstLineIdx + 1).toHex());
QBrush highLighted = QBrush(_highlightingColor);
QPen colHighlighted = QPen(this->palette().color(QPalette::WindowText));
QBrush selected = QBrush(_selectionColor);
QPen colSelected = QPen(Qt::white);
QPen colStandard = QPen(this->palette().color(QPalette::WindowText));
painter.setBackgroundMode(Qt::TransparentMode);
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
QByteArray hex;
int xPos = _xPosHex;
for (int colIdx = 0; ((lineIdx + colIdx) < _xData.size() && (colIdx < BYTES_PER_LINE)); colIdx++)
{
int posBa = lineIdx + colIdx;
if ((getSelectionBegin() <= posBa) && (getSelectionEnd() > posBa))
{
painter.setBackground(selected);
painter.setBackgroundMode(Qt::OpaqueMode);
painter.setPen(colSelected);
}
else
{
if (_highlighting)
{
// hilight diff bytes
painter.setBackground(highLighted);
if (_xData.dataChanged(posBa))
{
painter.setPen(colHighlighted);
painter.setBackgroundMode(Qt::OpaqueMode);
}
else
{
painter.setPen(colStandard);
painter.setBackgroundMode(Qt::TransparentMode);
}
}
}
// render hex value
if (colIdx == 0)
{
hex = hexBa.mid((lineIdx - firstLineIdx) * 2, 2);
painter.drawText(xPos, yPos, hex.toUpper());
xPos += 2 * _charWidth;
} else {
hex = hexBa.mid((lineIdx + colIdx - firstLineIdx) * 2, 2).prepend(" ");
painter.drawText(xPos, yPos, hex.toUpper());
xPos += 3 * _charWidth;
}
}
}
painter.setBackgroundMode(Qt::TransparentMode);
painter.setPen(this->palette().color(QPalette::WindowText));
// paint ascii area
if (_asciiArea)
{
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
int xPosAscii = _xPosAscii;
for (int colIdx = 0; ((lineIdx + colIdx) < _xData.size() && (colIdx < BYTES_PER_LINE)); colIdx++)
{
painter.drawText(xPosAscii, yPos, _xData.asciiChar(lineIdx + colIdx));
xPosAscii += _charWidth;
}
}
}
// paint cursor
if (_blink && !_readOnly && hasFocus())
{
if (_overwriteMode)
painter.fillRect(_cursorX, _cursorY + _charHeight - 2, _charWidth, 2, this->palette().color(QPalette::WindowText));
else
painter.fillRect(_cursorX, _cursorY, 2, _charHeight, this->palette().color(QPalette::WindowText));
}
if (_size != _xData.size())
{
_size = _xData.size();
emit currentSizeChanged(_size);
}
}
void QHexEditPrivate::keyPressEvent(QKeyEvent *event)
{
int charX = (_cursorX - _xPosHex) / _charWidth;
int posX = (charX / 3) * 2 + (charX % 3);
int posBa = (_cursorY / _charHeight) * BYTES_PER_LINE + posX / 2;
/*****************************************************************************/
/* Cursor movements */
/*****************************************************************************/
if (event->matches(QKeySequence::MoveToNextChar))
{
setCursorPos(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousChar))
{
setCursorPos(_cursorPosition - 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfLine))
{
setCursorPos(_cursorPosition | (2 * BYTES_PER_LINE -1));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfLine))
{
setCursorPos(_cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousLine))
{
setCursorPos(_cursorPosition - (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextLine))
{
setCursorPos(_cursorPosition + (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextPage))
{
setCursorPos(_cursorPosition + (((_scrollArea->viewport()->height() / _charHeight) - 1) * 2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousPage))
{
setCursorPos(_cursorPosition - (((_scrollArea->viewport()->height() / _charHeight) - 1) * 2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfDocument))
{
setCursorPos(_xData.size() * 2);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfDocument))
{
setCursorPos(0);
resetSelection(_cursorPosition);
}
/*****************************************************************************/
/* Select commands */
/*****************************************************************************/
if (event->matches(QKeySequence::SelectAll))
{
resetSelection(0);
setSelection(2*_xData.size() + 1);
}
if (event->matches(QKeySequence::SelectNextChar))
{
int pos = _cursorPosition + 1;
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousChar))
{
int pos = _cursorPosition - 1;
setSelection(pos);
setCursorPos(pos);
}
if (event->matches(QKeySequence::SelectEndOfLine))
{
int pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE);
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfLine))
{
int pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE));
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousLine))
{
int pos = _cursorPosition - (2 * BYTES_PER_LINE);
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextLine))
{
int pos = _cursorPosition + (2 * BYTES_PER_LINE);
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextPage))
{
int pos = _cursorPosition + (((_scrollArea->viewport()->height() / _charHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousPage))
{
int pos = _cursorPosition - (((_scrollArea->viewport()->height() / _charHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectEndOfDocument))
{
int pos = _xData.size() * 2;
setCursorPos(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfDocument))
{
int pos = 0;
setCursorPos(pos);
setSelection(pos);
}
/*****************************************************************************/
/* Edit Commands */
/*****************************************************************************/
if (!_readOnly)
{
/* Hex input */
int key = int(event->text()[0].toAscii());
if ((key>='0' && key<='9') || (key>='a' && key <= 'f'))
{
if (getSelectionBegin() != getSelectionEnd())
{
posBa = getSelectionBegin();
remove(posBa, getSelectionEnd() - posBa);
setCursorPos(2*posBa);
resetSelection(2*posBa);
}
// If insert mode, then insert a byte
if (_overwriteMode == false)
if ((charX % 3) == 0)
{
insert(posBa, char(0));
}
// Change content
if (_xData.size() > 0)
{
QByteArray hexValue = _xData.data().mid(posBa, 1).toHex();
if ((charX % 3) == 0)
hexValue[0] = key;
else
hexValue[1] = key;
replace(posBa, QByteArray().fromHex(hexValue)[0]);
setCursorPos(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
}
/* Cut & Paste */
if (event->matches(QKeySequence::Cut))
{
QString result = QString();
for (int idx = getSelectionBegin(); idx < getSelectionEnd(); idx++)
{
result += _xData.data().mid(idx, 1).toHex() + " ";
if ((idx % 16) == 15)
result.append("\n");
}
remove(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(result);
setCursorPos(getSelectionBegin());
resetSelection(getSelectionBegin());
}
if (event->matches(QKeySequence::Paste))
{
QClipboard *clipboard = QApplication::clipboard();
QByteArray ba = QByteArray().fromHex(clipboard->text().toLatin1());
insert(_cursorPosition / 2, ba);
setCursorPos(_cursorPosition + 2 * ba.length());
resetSelection(getSelectionBegin());
}
/* Delete char */
if (event->matches(QKeySequence::Delete))
{
if (getSelectionBegin() != getSelectionEnd())
{
posBa = getSelectionBegin();
remove(posBa, getSelectionEnd() - posBa);
setCursorPos(2*posBa);
resetSelection(2*posBa);
}
else
{
if (_overwriteMode)
replace(posBa, char(0));
else
remove(posBa, 1);
}
}
/* Backspace */
if ((event->key() == Qt::Key_Backspace) && (event->modifiers() == Qt::NoModifier))
{
if (getSelectionBegin() != getSelectionEnd())
{
posBa = getSelectionBegin();
remove(posBa, getSelectionEnd() - posBa);
setCursorPos(2*posBa);
resetSelection(2*posBa);
}
else
{
if (posBa > 0)
{
if (_overwriteMode)
replace(posBa - 1, char(0));
else
remove(posBa - 1, 1);
setCursorPos(_cursorPosition - 2);
}
}
}
/* undo */
if (event->matches(QKeySequence::Undo))
{
undo();
}
/* redo */
if (event->matches(QKeySequence::Redo))
{
redo();
}
}
if (event->matches(QKeySequence::Copy))
{
QString result = QString();
for (int idx = getSelectionBegin(); idx < getSelectionEnd(); idx++)
{
result += _xData.data().mid(idx, 1).toHex() + " ";
if ((idx % 16) == 15)
result.append('\n');
}
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(result.toUpper());
}
// Switch between insert/overwrite mode
if ((event->key() == Qt::Key_Insert) && (event->modifiers() == Qt::NoModifier))
{
_overwriteMode = !_overwriteMode;
setCursorPos(_cursorPosition);
overwriteModeChanged(_overwriteMode);
}
ensureVisible();
update();
}
QString QHexEditPrivate::selectionToReadableString()
{
return _xData.toRedableString(getSelectionBegin(), getSelectionEnd());
}
void QHexEditPrivate::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
// draw some patterns if needed
painter.fillRect(event->rect(), this->palette().color(QPalette::Base));
if (_addressArea)
painter.fillRect(QRect(_xPosAdr, event->rect().top(), _xPosHex - GAP_ADR_HEX + 2, height()), _addressAreaColor);
if (_asciiArea)
{
int linePos = _xPosAscii - (GAP_HEX_ASCII / 2);
painter.setPen(Qt::gray);
painter.drawLine(linePos, event->rect().top(), linePos, height());
}
painter.setPen(this->palette().color(QPalette::WindowText));
// calc position
int firstLineIdx = ((event->rect().top()/ _charHeight) - _charHeight) * BYTES_PER_LINE;
if (firstLineIdx < 0)
firstLineIdx = 0;
int lastLineIdx = ((event->rect().bottom() / _charHeight) + _charHeight) * BYTES_PER_LINE;
if (lastLineIdx > _data.size())
lastLineIdx = _data.size();
int yPosStart = ((firstLineIdx) / BYTES_PER_LINE) * _charHeight + _charHeight;
// paint address area
if (_addressArea)
{
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
QString address = QString("%1")
.arg(lineIdx + _addressOffset, _realAddressNumbers, 16, QChar('0'));
// address.insert(address.length()-4,':');
painter.drawText(_xPosAdr, yPos, address.toUpper());
}
}
// paint hex area
QByteArray hexBa(_data.mid(firstLineIdx, lastLineIdx - firstLineIdx + 1).toHex());
QBrush highLighted = QBrush(_highlightingColor);
QPen colHighlighted = QPen(this->palette().color(QPalette::WindowText));
QBrush selected = QBrush(_selectionColor);
QPen colSelected = QPen(Qt::white);
QPen colStandard = QPen(this->palette().color(QPalette::WindowText));
painter.setBackgroundMode(Qt::TransparentMode);
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
QByteArray hex;
int xPos = _xPosHex;
QString hl_block;
int hl_block_i;
if (_highlighting)
{
painter.setPen(Qt::yellow);
hl_block_i=0;
hl_block="██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██";
for (int colIdx = 0; ((lineIdx + colIdx) < _data.size() and (colIdx < BYTES_PER_LINE)); colIdx++)
{
int posBa = lineIdx + colIdx;
if (_changedData[posBa])
{
hl_block[hl_block_i] = QChar(' ');
hl_block[hl_block_i+1] = QChar(' ');
}
hl_block_i=hl_block_i+3;
}
if(hl_block_i!=0)
{
while(hl_block_i<hl_block.size())
{
hl_block[hl_block_i] = QChar(' ');
hl_block_i++;
}
painter.drawText(xPos, yPos, hl_block);
}
}
if (_exteralHl.size()!=0)
{
painter.setPen(Qt::green);
hl_block_i=0;
hl_block="██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██";
for (int colIdx = 0; ((lineIdx + colIdx) < _data.size() and (colIdx < BYTES_PER_LINE)); colIdx++)
{
int posBa = lineIdx + colIdx;
if (_exteralHl[posBa]=='\0')
{
hl_block[hl_block_i] = QChar(' ');
hl_block[hl_block_i+1] = QChar(' ');
}
hl_block_i=hl_block_i+3;
}
if(hl_block_i!=0)
{
while(hl_block_i<hl_block.size())
{
hl_block[hl_block_i] = QChar(' ');
hl_block_i++;
}
painter.drawText(xPos, yPos, hl_block);
}
}
// if (_selected)
painter.setPen(Qt::cyan);
hl_block_i=0;
hl_block="██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██";
for (int colIdx = 0; ((lineIdx + colIdx) < _data.size() and (colIdx < BYTES_PER_LINE)); colIdx++)
{
int posBa = lineIdx + colIdx;
if (!((getSelectionBegin() <= posBa) && (getSelectionEnd() > posBa)))
{
hl_block[hl_block_i] = QChar(' ');
hl_block[hl_block_i+1] = QChar(' ');
}
hl_block_i=hl_block_i+3;
}
if(hl_block_i!=0)
{
while(hl_block_i<hl_block.size())
{
hl_block[hl_block_i] = QChar(' ');
hl_block_i++;
}
painter.drawText(xPos, yPos, hl_block);
}
painter.setPen(this->palette().color(QPalette::WindowText));
hex = hexBa.mid((lineIdx - firstLineIdx) * 2, BYTES_PER_LINE * 2);
QString new_hex=" "; //BYTES_PER_LINE*3
int i_new_hex = 0;
for(int i_hex=0;i_hex<hex.size();i_hex++,i_new_hex++)
{
new_hex[i_new_hex] = hex[i_hex];
if((i_hex+1)%2 == 0)i_new_hex++;
}
painter.drawText(xPos, yPos, new_hex.toUpper());
}
painter.setBackgroundMode(Qt::TransparentMode);
painter.setPen(this->palette().color(QPalette::WindowText));
// paint ascii area
if (_asciiArea)
{
for (int lineIdx = firstLineIdx, yPos = yPosStart; lineIdx < lastLineIdx; lineIdx += BYTES_PER_LINE, yPos +=_charHeight)
{
QByteArray ascii = _data.mid(lineIdx, BYTES_PER_LINE);
for (int idx=0; idx < ascii.size(); idx++)
if (((char)ascii[idx] < 0x20) or ((char)ascii[idx] > 0x7e))
ascii[idx] = '.';
painter.drawText(_xPosAscii, yPos, ascii);
}
}
// paint cursor
if (_blink)
{
if (_overwriteMode)
painter.fillRect(_cursorX, _cursorY + _charHeight - 2, _charWidth, 2, this->palette().color(QPalette::WindowText));
else
painter.fillRect(_cursorX, _cursorY, 2, _charHeight, this->palette().color(QPalette::WindowText));
}
if (_size != _data.size())
{
_size = _data.size();
emit currentSizeChanged(_size);
}
QString adr; adr.setNum(_cursorPosition/2,16); adr = adr.toUpper();
while(adr.length()<8)
{
adr.prepend("0");
}
QString val; val.setNum(_data[_cursorPosition/2],16); val = val.toUpper();
if(val.length()<2)val.prepend("0");
val = val.mid(val.length()-2,2);
QString bval; bval.setNum(_data[_cursorPosition/2],2);
while(bval.length()<8)bval.prepend("0");
if(bval.length()>8)
{
bval = bval.mid(bval.length()-8,8);
}
emit updateText("Address: "+adr+" Value: "+val+" Binary: "+bval);
}
void QHexEdit::paintEvent(QPaintEvent *event)
{
QPainter painter(viewport());
if (event->rect() != _cursorRect)
{
// process some useful calculations
int pxOfsX = horizontalScrollBar()->value();
int pxPosStartY = _pxCharHeight;
// draw some patterns if needed
painter.fillRect(event->rect(), viewport()->palette().color(QPalette::Base));
if (_addressArea)
painter.fillRect(QRect(-pxOfsX, event->rect().top(), _pxPosHexX - _pxGapAdrHex/2 - pxOfsX, height()), _addressAreaColor);
if (_asciiArea)
{
int linePos = _pxPosAsciiX - (_pxGapHexAscii / 2);
painter.setPen(Qt::gray);
painter.drawLine(linePos - pxOfsX, event->rect().top(), linePos - pxOfsX, height());
}
painter.setPen(viewport()->palette().color(QPalette::WindowText));
// paint address area
if (_addressArea)
{
QString address;
for (int row=0, pxPosY = _pxCharHeight; row <= (_dataShown.size()/BYTES_PER_LINE); row++, pxPosY +=_pxCharHeight)
{
address = QString("%1").arg(_bPosFirst + row*BYTES_PER_LINE + _addressOffset, _addrDigits, 16, QChar('0'));
painter.drawText(_pxPosAdrX - pxOfsX, pxPosY, address);
}
}
// paint hex and ascii area
QPen colStandard = QPen(viewport()->palette().color(QPalette::WindowText));
painter.setBackgroundMode(Qt::TransparentMode);
for (int row = 0, pxPosY = pxPosStartY; row <= _rowsShown; row++, pxPosY +=_pxCharHeight)
{
QByteArray hex;
int pxPosX = _pxPosHexX - pxOfsX;
int pxPosAsciiX2 = _pxPosAsciiX - pxOfsX;
qint64 bPosLine = row * BYTES_PER_LINE;
for (int colIdx = 0; ((bPosLine + colIdx) < _dataShown.size() && (colIdx < BYTES_PER_LINE)); colIdx++)
{
QColor c = viewport()->palette().color(QPalette::Base);
painter.setPen(colStandard);
qint64 posBa = _bPosFirst + bPosLine + colIdx;
if ((getSelectionBegin() <= posBa) && (getSelectionEnd() > posBa))
{
c = _brushSelection.color();
painter.setPen(_penSelection);
}
else
{
if (_highlighting)
if (_markedShown.at((int)(posBa - _bPosFirst)))
{
c = _brushHighlighted.color();
painter.setPen(_penHighlighted);
}
}
// render hex value
QRect r;
if (colIdx == 0)
r.setRect(pxPosX, pxPosY - _pxCharHeight + _pxSelectionSub, 2*_pxCharWidth, _pxCharHeight);
else
r.setRect(pxPosX - _pxCharWidth, pxPosY - _pxCharHeight + _pxSelectionSub, 3*_pxCharWidth, _pxCharHeight);
painter.fillRect(r, c);
hex = _hexDataShown.mid((bPosLine + colIdx) * 2, 2);
painter.drawText(pxPosX, pxPosY, hex);
pxPosX += 3*_pxCharWidth;
// render ascii value
if (_asciiArea)
{
char ch = _dataShown.at(bPosLine + colIdx);
if ((ch < 0x20) || (ch > 0x7e))
ch = '.';
r.setRect(pxPosAsciiX2, pxPosY - _pxCharHeight + _pxSelectionSub, _pxCharWidth, _pxCharHeight);
painter.fillRect(r, c);
painter.drawText(pxPosAsciiX2, pxPosY, QChar(ch));
pxPosAsciiX2 += _pxCharWidth;
}
}
}
painter.setBackgroundMode(Qt::TransparentMode);
painter.setPen(viewport()->palette().color(QPalette::WindowText));
}
// paint cursor
if (_blink && !_readOnly && hasFocus())
painter.fillRect(_cursorRect, this->palette().color(QPalette::WindowText));
else
painter.drawText(_pxCursorX, _pxCursorY, _hexDataShown.mid(_cursorPosition - _bPosFirst * 2, 1));
// emit event, if size has changed
if (_lastEventSize != _chunks->size())
{
_lastEventSize = _chunks->size();
emit currentSizeChanged(_lastEventSize);
}
}
// ********************************************************************** Handle events
void QHexEdit::keyPressEvent(QKeyEvent *event)
{
// Cursor movements
if (event->matches(QKeySequence::MoveToNextChar))
{
setCursorPosition(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousChar))
{
setCursorPosition(_cursorPosition - 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfLine))
{
setCursorPosition(_cursorPosition | (2 * BYTES_PER_LINE -1));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfLine))
{
setCursorPosition(_cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousLine))
{
setCursorPosition(_cursorPosition - (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextLine))
{
setCursorPosition(_cursorPosition + (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextPage))
{
setCursorPosition(_cursorPosition + (((_rowsShown - 1) * 2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousPage))
{
setCursorPosition(_cursorPosition - (((_rowsShown - 1) * 2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfDocument))
{
setCursorPosition(_chunks->size() * 2);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfDocument))
{
setCursorPosition(0);
resetSelection(_cursorPosition);
}
// Select commands
if (event->matches(QKeySequence::SelectAll))
{
resetSelection(0);
setSelection(2*_chunks->size() + 1);
}
if (event->matches(QKeySequence::SelectNextChar))
{
qint64 pos = _cursorPosition + 1;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousChar))
{
qint64 pos = _cursorPosition - 1;
setSelection(pos);
setCursorPosition(pos);
}
if (event->matches(QKeySequence::SelectEndOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE));
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousLine))
{
qint64 pos = _cursorPosition - (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextLine))
{
qint64 pos = _cursorPosition + (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextPage))
{
qint64 pos = _cursorPosition + (((viewport()->height() / _pxCharHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousPage))
{
qint64 pos = _cursorPosition - (((viewport()->height() / _pxCharHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectEndOfDocument))
{
qint64 pos = _chunks->size() * 2;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfDocument))
{
qint64 pos = 0;
setCursorPosition(pos);
setSelection(pos);
}
// Edit Commands
if (!_readOnly)
{
if ((QApplication::keyboardModifiers() == Qt::NoModifier) ||
(QApplication::keyboardModifiers() == Qt::KeypadModifier))
{
/* Hex input */
int key = int(event->text()[0].toLatin1());
if ((key>='0' && key<='9') || (key>='a' && key <= 'f'))
{
if (getSelectionBegin() != getSelectionEnd())
{
if (_overwriteMode)
{
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
}
else
{
remove(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
_bPosCurrent = getSelectionBegin();
}
setCursorPosition(2*_bPosCurrent);
resetSelection(2*_bPosCurrent);
}
// If insert mode, then insert a byte
if (_overwriteMode == false)
if ((_cursorPosition % 2) == 0)
insert(_bPosCurrent, char(0));
// Change content
if (_chunks->size() > 0)
{
QByteArray hexValue = _chunks->data(_bPosCurrent, 1).toHex();
if ((_cursorPosition % 2) == 0)
hexValue[0] = key;
else
hexValue[1] = key;
replace(_bPosCurrent, QByteArray().fromHex(hexValue)[0]);
setCursorPosition(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
}
}
/* Cut */
if (event->matches(QKeySequence::Cut))
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin()).toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
if (_overwriteMode)
{
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
}
else
{
remove(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
}
setCursorPosition(2*getSelectionBegin());
resetSelection(2*getSelectionBegin());
}
/* Paste */
if (event->matches(QKeySequence::Paste))
{
QClipboard *clipboard = QApplication::clipboard();
QByteArray ba = QByteArray().fromHex(clipboard->text().toLatin1());
if (_overwriteMode)
replace(_bPosCurrent, ba.size(), ba);
else
insert(_bPosCurrent, ba);
setCursorPosition(_cursorPosition + 2 * ba.size());
resetSelection(getSelectionBegin());
}
/* Delete char */
if (event->matches(QKeySequence::Delete))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
if (_overwriteMode)
{
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
}
else
{
remove(_bPosCurrent, getSelectionEnd() - getSelectionBegin());
}
}
else
{
if (_overwriteMode)
replace(_bPosCurrent, char(0));
else
remove(_bPosCurrent, 1);
}
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
/* Backspace */
if ((event->key() == Qt::Key_Backspace) && (event->modifiers() == Qt::NoModifier))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
setCursorPosition(2 * _bPosCurrent);
if (_overwriteMode)
{
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
}
else
{
remove(_bPosCurrent, getSelectionEnd() - getSelectionBegin());
}
resetSelection(2 * _bPosCurrent);
}
else
{
bool behindLastByte = false;
if ((_cursorPosition / 2) == _chunks->size())
behindLastByte = true;
_bPosCurrent -= 1;
if (_overwriteMode)
replace(_bPosCurrent, char(0));
else
remove(_bPosCurrent, 1);
if (!behindLastByte)
_bPosCurrent -= 1;
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
}
/* undo */
if (event->matches(QKeySequence::Undo))
{
undo();
}
/* redo */
if (event->matches(QKeySequence::Redo))
{
redo();
}
}
/* Copy */
if (event->matches(QKeySequence::Copy))
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin()).toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
}
// Switch between insert/overwrite mode
if ((event->key() == Qt::Key_Insert) && (event->modifiers() == Qt::NoModifier))
{
setOverwriteMode(!overwriteMode());
setCursorPosition(_cursorPosition);
}
// Refresh Event
if ((event->key() == Qt::Key_F5))
executableViewer->getMainWindow()->refresh();
refresh();
}
QString QHexEdit::selectionToReadableString()
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
return toReadable(ba);
}
void QHexEdit::paintEvent(QPaintEvent *event)
{
QPainter painter(viewport());
int pxOfsX = horizontalScrollBar()->value();
if (event->rect() != _cursorRect)
{
int pxPosStartY = _pxCharHeight;
// draw some patterns if needed
painter.fillRect(event->rect(), viewport()->palette().color(QPalette::Base));
if (_addressArea)
painter.fillRect(QRect(-pxOfsX, event->rect().top(), _pxPosHexX - _pxGapAdrHex/2, height()), _addressAreaColor);
if (_asciiArea)
{
int linePos = _pxPosAsciiX - (_pxGapHexAscii / 2);
painter.setPen(Qt::gray);
painter.drawLine(linePos - pxOfsX, event->rect().top(), linePos - pxOfsX, height());
}
painter.setPen(viewport()->palette().color(QPalette::WindowText));
// paint address area
if (_addressArea)
{
QString address;
for (int row=0, pxPosY = _pxCharHeight; row <= (_dataShown.size()/_bytesPerLine); row++, pxPosY +=_pxCharHeight)
{
address = QString("%1").arg(_bPosFirst + row*_bytesPerLine + _addressOffset, _addrDigits, 16, QChar('0'));
painter.drawText(_pxPosAdrX - pxOfsX, pxPosY, address);
}
}
// paint hex and ascii area
QPen colStandard = QPen(viewport()->palette().color(QPalette::WindowText));
painter.setBackgroundMode(Qt::TransparentMode);
for (int row = 0, pxPosY = pxPosStartY; row <= _rowsShown; row++, pxPosY +=_pxCharHeight)
{
QByteArray hex;
int pxPosX = _pxPosHexX - pxOfsX;
int pxPosAsciiX2 = _pxPosAsciiX - pxOfsX;
qint64 bPosLine = row * _bytesPerLine;
for (int colIdx = 0; ((bPosLine + colIdx) < _dataShown.size() && (colIdx < _bytesPerLine)); colIdx++)
{
QColor c = viewport()->palette().color(QPalette::Base);
painter.setPen(colStandard);
qint64 posBa = _bPosFirst + bPosLine + colIdx;
if ((getSelectionBegin() <= posBa) && (getSelectionEnd() > posBa))
{
c = _brushSelection.color();
painter.setPen(_penSelection);
}
else
{
if (_highlighting)
if (_markedShown.at((int)(posBa - _bPosFirst)))
{
c = _brushHighlighted.color();
painter.setPen(_penHighlighted);
}
}
// render hex value
QRect r;
if (colIdx == 0)
r.setRect(pxPosX, pxPosY - _pxCharHeight + _pxSelectionSub, 2*_pxCharWidth, _pxCharHeight);
else
r.setRect(pxPosX - _pxCharWidth, pxPosY - _pxCharHeight + _pxSelectionSub, 3*_pxCharWidth, _pxCharHeight);
painter.fillRect(r, c);
hex = _hexDataShown.mid((bPosLine + colIdx) * 2, 2);
painter.drawText(pxPosX, pxPosY, hexCaps()?hex.toUpper():hex);
pxPosX += 3*_pxCharWidth;
// render ascii value
if (_asciiArea)
{
int ch = (uchar)_dataShown.at(bPosLine + colIdx);
if ( ch < ' ' || ch > '~' )
ch = '.';
r.setRect(pxPosAsciiX2, pxPosY - _pxCharHeight + _pxSelectionSub, _pxCharWidth, _pxCharHeight);
painter.fillRect(r, c);
painter.drawText(pxPosAsciiX2, pxPosY, QChar(ch));
pxPosAsciiX2 += _pxCharWidth;
}
}
}
painter.setBackgroundMode(Qt::TransparentMode);
painter.setPen(viewport()->palette().color(QPalette::WindowText));
}
// _cursorPosition counts in 2, _bPosFirst counts in 1
int hexPositionInShowData = _cursorPosition - 2 * _bPosFirst;
// due to scrolling the cursor can go out of the currently displayed data
if ((hexPositionInShowData >= 0) && (hexPositionInShowData < _hexDataShown.size()))
{
// paint cursor
if (_readOnly)
{
// make the background stick out
QColor color = viewport()->palette().dark().color();
painter.fillRect(QRect(_pxCursorX - pxOfsX, _pxCursorY - _pxCharHeight + _pxSelectionSub, _pxCharWidth, _pxCharHeight), color);
}
else
{
if (_blink && hasFocus())
painter.fillRect(_cursorRect, this->palette().color(QPalette::WindowText));
}
if (_editAreaIsAscii)
{
// every 2 hex there is 1 ascii
int asciiPositionInShowData = hexPositionInShowData / 2;
int ch = (uchar)_dataShown.at(asciiPositionInShowData);
if (ch < ' ' || ch > '~')
ch = '.';
painter.drawText(_pxCursorX - pxOfsX, _pxCursorY, QChar(ch));
}
else
{
painter.drawText(_pxCursorX - pxOfsX, _pxCursorY, _hexDataShown.mid(hexPositionInShowData, 1));
}
}
// emit event, if size has changed
if (_lastEventSize != _chunks->size())
{
_lastEventSize = _chunks->size();
emit currentSizeChanged(_lastEventSize);
}
}
// ********************************************************************** Handle events
void QHexEdit::keyPressEvent(QKeyEvent *event)
{
// Cursor movements
if (event->matches(QKeySequence::MoveToNextChar))
{
qint64 pos = _cursorPosition + 1;
if (_editAreaIsAscii)
pos += 1;
setCursorPosition(pos);
resetSelection(pos);
}
if (event->matches(QKeySequence::MoveToPreviousChar))
{
qint64 pos = _cursorPosition - 1;
if (_editAreaIsAscii)
pos -= 1;
setCursorPosition(pos);
resetSelection(pos);
}
if (event->matches(QKeySequence::MoveToEndOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * _bytesPerLine)) + (2 * _bytesPerLine) - 1;
setCursorPosition(pos);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * _bytesPerLine));
setCursorPosition(pos);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousLine))
{
setCursorPosition(_cursorPosition - (2 * _bytesPerLine));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextLine))
{
setCursorPosition(_cursorPosition + (2 * _bytesPerLine));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextPage))
{
setCursorPosition(_cursorPosition + (((_rowsShown - 1) * 2 * _bytesPerLine)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousPage))
{
setCursorPosition(_cursorPosition - (((_rowsShown - 1) * 2 * _bytesPerLine)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfDocument))
{
setCursorPosition(_chunks->size() * 2 );
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfDocument))
{
setCursorPosition(0);
resetSelection(_cursorPosition);
}
// Select commands
if (event->matches(QKeySequence::SelectAll))
{
resetSelection(0);
setSelection(2 * _chunks->size() + 1);
}
if (event->matches(QKeySequence::SelectNextChar))
{
qint64 pos = _cursorPosition + 1;
if (_editAreaIsAscii)
pos += 1;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousChar))
{
qint64 pos = _cursorPosition - 1;
if (_editAreaIsAscii)
pos -= 1;
setSelection(pos);
setCursorPosition(pos);
}
if (event->matches(QKeySequence::SelectEndOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * _bytesPerLine)) + (2 * _bytesPerLine) - 1;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * _bytesPerLine));
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousLine))
{
qint64 pos = _cursorPosition - (2 * _bytesPerLine);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextLine))
{
qint64 pos = _cursorPosition + (2 * _bytesPerLine);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextPage))
{
qint64 pos = _cursorPosition + (((viewport()->height() / _pxCharHeight) - 1) * 2 * _bytesPerLine);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousPage))
{
qint64 pos = _cursorPosition - (((viewport()->height() / _pxCharHeight) - 1) * 2 * _bytesPerLine);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectEndOfDocument))
{
qint64 pos = _chunks->size() * 2;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfDocument))
{
qint64 pos = 0;
setCursorPosition(pos);
setSelection(pos);
}
// Edit Commands
if (!_readOnly)
{
/* Cut */
if (event->matches(QKeySequence::Cut))
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin()).toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
if (_overwriteMode)
{
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
}
else
{
remove(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
}
setCursorPosition(2 * getSelectionBegin());
resetSelection(2 * getSelectionBegin());
} else
/* Paste */
if (event->matches(QKeySequence::Paste))
{
QClipboard *clipboard = QApplication::clipboard();
QByteArray ba = QByteArray().fromHex(clipboard->text().toLatin1());
if (_overwriteMode)
{
ba = ba.left(std::min<qint64>(ba.size(), (_chunks->size() - _bPosCurrent)));
replace(_bPosCurrent, ba.size(), ba);
}
else
insert(_bPosCurrent, ba);
setCursorPosition(_cursorPosition + 2 * ba.size());
resetSelection(getSelectionBegin());
} else
/* Delete char */
if (event->matches(QKeySequence::Delete))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
if (_overwriteMode)
{
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
}
else
{
remove(_bPosCurrent, getSelectionEnd() - getSelectionBegin());
}
}
else
{
if (_overwriteMode)
replace(_bPosCurrent, char(0));
else
remove(_bPosCurrent, 1);
}
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
} else
/* Backspace */
if ((event->key() == Qt::Key_Backspace) && (event->modifiers() == Qt::NoModifier))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
setCursorPosition(2 * _bPosCurrent);
if (_overwriteMode)
{
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
}
else
{
remove(_bPosCurrent, getSelectionEnd() - getSelectionBegin());
}
resetSelection(2 * _bPosCurrent);
}
else
{
bool behindLastByte = false;
if ((_cursorPosition / 2) == _chunks->size())
behindLastByte = true;
_bPosCurrent -= 1;
if (_overwriteMode)
replace(_bPosCurrent, char(0));
else
remove(_bPosCurrent, 1);
if (!behindLastByte)
_bPosCurrent -= 1;
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
} else
/* undo */
if (event->matches(QKeySequence::Undo))
{
undo();
} else
/* redo */
if (event->matches(QKeySequence::Redo))
{
redo();
} else
if ((QApplication::keyboardModifiers() == Qt::NoModifier) ||
(QApplication::keyboardModifiers() == Qt::KeypadModifier) ||
(QApplication::keyboardModifiers() == Qt::ShiftModifier) ||
(QApplication::keyboardModifiers() == (Qt::AltModifier | Qt::ControlModifier)) ||
(QApplication::keyboardModifiers() == Qt::GroupSwitchModifier))
{
/* Hex and ascii input */
int key;
if (_editAreaIsAscii)
key = (uchar)event->text()[0].toLatin1();
else
key = int(event->text()[0].toLower().toLatin1());
if ((((key >= '0' && key <= '9') || (key >= 'a' && key <= 'f')) && _editAreaIsAscii == false)
|| (key >= ' ' && _editAreaIsAscii))
{
if (getSelectionBegin() != getSelectionEnd())
{
if (_overwriteMode)
{
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
} else
{
remove(getSelectionBegin(), getSelectionEnd() - getSelectionBegin());
_bPosCurrent = getSelectionBegin();
}
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
// If insert mode, then insert a byte
if (_overwriteMode == false)
if ((_cursorPosition % 2) == 0)
insert(_bPosCurrent, char(0));
// Change content
if (_chunks->size() > 0)
{
char ch = key;
if (!_editAreaIsAscii){
QByteArray hexValue = _chunks->data(_bPosCurrent, 1).toHex();
if ((_cursorPosition % 2) == 0)
hexValue[0] = key;
else
hexValue[1] = key;
ch = QByteArray().fromHex(hexValue)[0];
}
replace(_bPosCurrent, ch);
if (_editAreaIsAscii)
setCursorPosition(_cursorPosition + 2);
else
setCursorPosition(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
}
}
}
/* Copy */
if (event->matches(QKeySequence::Copy))
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin()).toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
}
// Switch between insert/overwrite mode
if ((event->key() == Qt::Key_Insert) && (event->modifiers() == Qt::NoModifier))
{
setOverwriteMode(!overwriteMode());
setCursorPosition(_cursorPosition);
}
// switch from hex to ascii edit
if (event->key() == Qt::Key_Tab && !_editAreaIsAscii){
_editAreaIsAscii = true;
setCursorPosition(_cursorPosition);
}
// switch from ascii to hex edit
if (event->key() == Qt::Key_Backtab && _editAreaIsAscii){
_editAreaIsAscii = false;
setCursorPosition(_cursorPosition);
}
refresh();
}
QString QHexEdit::selectedData()
{
QByteArray ba = _chunks->data(getSelectionBegin(), getSelectionEnd() - getSelectionBegin()).toHex();
return ba;
}
// ********************************************************************** Handle events
void QHexEdit::keyPressEvent(QKeyEvent *event)
{
// Cursor movements
if (event->matches(QKeySequence::MoveToNextChar))
{
setCursorPosition(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousChar))
{
setCursorPosition(_cursorPosition - 1);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfLine))
{
setCursorPosition(_cursorPosition | (2 * BYTES_PER_LINE -1));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfLine))
{
setCursorPosition(_cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousLine))
{
setCursorPosition(_cursorPosition - (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextLine))
{
setCursorPosition(_cursorPosition + (2 * BYTES_PER_LINE));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToNextPage))
{
setCursorPosition(_cursorPosition + (((_rowsShown - 1) * 2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToPreviousPage))
{
setCursorPosition(_cursorPosition - (((_rowsShown - 1) * 2 * BYTES_PER_LINE)));
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToEndOfDocument))
{
setCursorPosition(_editorSize * 2);
resetSelection(_cursorPosition);
}
if (event->matches(QKeySequence::MoveToStartOfDocument))
{
setCursorPosition(0);
resetSelection(_cursorPosition);
}
// Select commands
if (event->matches(QKeySequence::SelectAll))
{
resetSelection(0);
setSelection(2*_editorSize + 1);
}
if (event->matches(QKeySequence::SelectNextChar))
{
qint64 pos = _cursorPosition + 1;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousChar))
{
qint64 pos = _cursorPosition - 1;
setSelection(pos);
setCursorPosition(pos);
}
if (event->matches(QKeySequence::SelectEndOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfLine))
{
qint64 pos = _cursorPosition - (_cursorPosition % (2 * BYTES_PER_LINE));
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousLine))
{
qint64 pos = _cursorPosition - (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextLine))
{
qint64 pos = _cursorPosition + (2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectNextPage))
{
qint64 pos = _cursorPosition + (((viewport()->height() / _pxCharHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectPreviousPage))
{
qint64 pos = _cursorPosition - (((viewport()->height() / _pxCharHeight) - 1) * 2 * BYTES_PER_LINE);
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectEndOfDocument))
{
qint64 pos = _editorSize * 2;
setCursorPosition(pos);
setSelection(pos);
}
if (event->matches(QKeySequence::SelectStartOfDocument))
{
qint64 pos = 0;
setCursorPosition(pos);
setSelection(pos);
}
// Edit Commands
if (!_readOnly)
{
if ((QApplication::keyboardModifiers() == Qt::NoModifier) ||
(QApplication::keyboardModifiers() == Qt::KeypadModifier))
{
/* Hex input */
int key = int(event->text()[0].toLatin1());
if ((key>='0' && key<='9') || (key>='a' && key <= 'f'))
{
if (getSelectionBegin() != getSelectionEnd())
{
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
setCursorPosition(2*_bPosCurrent);
resetSelection(2*_bPosCurrent);
}
// Change content
if (_editorSize > 0)
{
const char byte = reader ? reader(_bPosCurrent) : 0;
QByteArray hexValue = QByteArray(&byte, 1).toHex();
if ((_cursorPosition % 2) == 0)
hexValue[0] = key;
else
hexValue[1] = key;
replace(_bPosCurrent, QByteArray().fromHex(hexValue)[0]);
setCursorPosition(_cursorPosition + 1);
resetSelection(_cursorPosition);
}
}
}
/* Cut */
if (event->matches(QKeySequence::Cut))
{
QByteArray bytes;
for (qint64 i = getSelectionBegin(); i <= getSelectionEnd(); i++)
bytes.append(reader ? reader(i) : 0);
QByteArray ba = bytes.toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
qint64 len = getSelectionEnd() - getSelectionBegin();
replace(getSelectionBegin(), (int)len, QByteArray((int)len, char(0)));
setCursorPosition(2*getSelectionBegin());
resetSelection(2*getSelectionBegin());
}
/* Paste */
if (event->matches(QKeySequence::Paste))
{
QClipboard *clipboard = QApplication::clipboard();
QByteArray ba = QByteArray().fromHex(clipboard->text().toLatin1());
replace(_bPosCurrent, ba.size(), ba);
setCursorPosition(_cursorPosition + 2 * ba.size());
resetSelection(getSelectionBegin());
}
/* Delete char */
if (event->matches(QKeySequence::Delete))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
}
else
{
replace(_bPosCurrent, char(0));
}
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
/* Backspace */
if ((event->key() == Qt::Key_Backspace) && (event->modifiers() == Qt::NoModifier))
{
if (getSelectionBegin() != getSelectionEnd())
{
_bPosCurrent = getSelectionBegin();
setCursorPosition(2 * _bPosCurrent);
QByteArray ba = QByteArray(getSelectionEnd() - getSelectionBegin(), char(0));
replace(_bPosCurrent, ba.size(), ba);
resetSelection(2 * _bPosCurrent);
}
else
{
_bPosCurrent -= 1;
replace(_bPosCurrent, char(0));
_bPosCurrent -= 1;
setCursorPosition(2 * _bPosCurrent);
resetSelection(2 * _bPosCurrent);
}
}
/* undo */
if (event->matches(QKeySequence::Undo))
{
undo();
}
/* redo */
if (event->matches(QKeySequence::Redo))
{
redo();
}
}
/* Copy */
if (event->matches(QKeySequence::Copy))
{
QByteArray bytes;
for (qint64 i = getSelectionBegin(); i <= getSelectionEnd(); i++)
bytes.append(reader ? reader(i) : 0);
QByteArray ba = bytes.toHex();
for (qint64 idx = 32; idx < ba.size(); idx +=33)
ba.insert(idx, "\n");
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(ba);
}
refresh();
}
