void Dropper::handleInternalDrag( QDropEvent* dropEvent, AbstractByteArrayView* sourceByteArrayView )
{
// get drag origin
AddressRange selection = sourceByteArrayView->tableRanges()->removeSelection();
ByteArrayTableCursor* tableCursor = mByteArrayView->tableCursor();
AbstractByteArrayModel* byteArrayModel = mByteArrayView->byteArrayModel();
Address insertIndex = tableCursor->realIndex();
// is this a move?
if( dropEvent->proposedAction() == Qt::MoveAction )
{
// ignore the copy hold in the event but only move
Address newCursorIndex;
// need to swap?
if( selection.end() < insertIndex )
{
newCursorIndex = insertIndex;
const Address firstIndex = selection.start();
selection.set( selection.nextBehindEnd(), insertIndex-1 );
insertIndex = firstIndex;
}
else
newCursorIndex = insertIndex + selection.width();
const bool success = byteArrayModel->swap( insertIndex, selection );
if( success )
{
tableCursor->gotoCIndex( newCursorIndex );
emit mByteArrayView->cursorPositionChanged( tableCursor->realIndex() );
}
}
// is a copy
else
{
// TODO: should this be a method of AbstractByteArrayModel, to reuse piece data?
// get data
const QByteArray data =
dropEvent->mimeData()->data( QLatin1String(DropperOctetStreamFormatName) );
if( !data.isEmpty() )
{
if( mByteArrayView->isOverwriteMode() )
{
const Size length = mByteArrayView->layout()->length();
if( !tableCursor->isBehind() && length > 0 )
{
AddressRange overwriteRange = AddressRange::fromWidth( insertIndex, data.size() );
overwriteRange.restrictEndTo( length-1 );
if( overwriteRange.isValid() )
byteArrayModel->replace( overwriteRange, reinterpret_cast<const Byte*>(data.constData()), overwriteRange.width() );
}
}
else
byteArrayModel->insert( insertIndex, reinterpret_cast<const Byte*>(data.constData()), data.size() );
}
}
}
void MouseNavigator::handleMouseMove( const QPoint& point ) // handles the move of the mouse with pressed buttons
{
ByteArrayTableCursor* tableCursor = mView->tableCursor();
ByteArrayTableRanges* tableRanges = mView->tableRanges();
const bool oldHasSelection = tableRanges->hasSelection();
const int yOffset = mView->yOffset();
const int behindLastYOffset = yOffset + mView->visibleHeight();
// scrolltimer but inside of viewport?
if( mScrollTimer->isActive() )
{
if( yOffset <= point.y() && point.y() < behindLastYOffset )
mScrollTimer->stop();
}
// no scrolltimer and outside of viewport?
else
{
if( point.y() < yOffset || behindLastYOffset <= point.y() )
mScrollTimer->start( DefaultScrollTimerPeriod );
}
mView->pauseCursor();
mView->placeCursor( point );
mView->ensureCursorVisible();
// do wordwise selection?
if( mInLMBDoubleClick && tableRanges->hasFirstWordSelection() )
{
Address newIndex = tableCursor->realIndex();
const AddressRange firstWordSelection = tableRanges->firstWordSelection();
const WordByteArrayService WBS( mView->byteArrayModel(), mView->charCodec() );
// are we before the selection?
if( firstWordSelection.startsBehind(newIndex) )
{
tableRanges->ensureWordSelectionForward( false );
newIndex = WBS.indexOfLeftWordSelect( newIndex );
}
// or behind?
else if( firstWordSelection.endsBefore(newIndex) )
{
tableRanges->ensureWordSelectionForward( true );
newIndex = WBS.indexOfRightWordSelect( newIndex );
}
// or inside?
else
{
tableRanges->ensureWordSelectionForward( true );
newIndex = firstWordSelection.nextBehindEnd();
}
tableCursor->gotoIndex( newIndex );
}
if( tableRanges->selectionStarted() )
tableRanges->setSelectionEnd( mView->cursorPosition() );
mView->updateChanged();
mView->unpauseCursor();
const bool newHasSelection = tableRanges->hasSelection();
emit mView->cursorPositionChanged( mView->cursorPosition() );
emit mView->selectionChanged( tableRanges->selection() );
if( oldHasSelection != newHasSelection )
{
if( ! mView->isOverwriteMode() ) emit mView->cutAvailable( newHasSelection );
emit mView->copyAvailable( newHasSelection );
emit mView->hasSelectedDataChanged( newHasSelection );
}
}