void HistoryScrollBuffer::addCellsVector(const QVector<Character>& cells)
{
_head++;
if ( _usedLines < _maxLineCount )
_usedLines++;
if ( _head >= _maxLineCount )
{
_head = 0;
}
_historyBuffer[bufferIndex(_usedLines-1)] = cells;
_wrappedLine[bufferIndex(_usedLines-1)] = false;
}
bool HistoryScrollBuffer::isWrappedLine(int lineNumber)
{
Q_ASSERT( lineNumber >= 0 && lineNumber < _maxLineCount );
if (lineNumber < _usedLines)
{
//kDebug() << "Line" << lineNumber << "wrapped is" << _wrappedLine[bufferIndex(lineNumber)];
return _wrappedLine[bufferIndex(lineNumber)];
}
else
return false;
}
int HistoryScrollBuffer::getLineLen(int lineNumber)
{
Q_ASSERT( lineNumber >= 0 && lineNumber < _maxLineCount );
if ( lineNumber < _usedLines )
{
return _historyBuffer[bufferIndex(lineNumber)].size();
}
else
{
return 0;
}
}
void IndexPage::loadPage(BufferManager* manager) {
Buffer* buffer = manager->getBuffer(bufferIndex());
buffer->seek(bufferPos());
__int32 bsize = buffer->readInt();
char* data = buffer->readChars();
MemoryStream* helperStream = new MemoryStream(data, bsize);
helperStream->seek(0);
helperStream->readInt(); // BUCKET_MAX_ELEMENTS
size = helperStream->readInt();
IndexPage* tempPointer = NULL;
for (int x = 0; x < BUCKET_MAX_ELEMENTS; x++) {
Index* index = retrieveIndexElement(helperStream);
elements[x] = index;
tempPointer = retrievePointer(helperStream);
pointers[x] = tempPointer;
if (tempPointer != NULL) {
tempPointer->parentElement = this;
}
}
// Recovers the last pointer
tempPointer = retrievePointer(helperStream);
pointers[BUCKET_MAX_ELEMENTS] = tempPointer;
if (tempPointer != NULL) {
tempPointer->parentElement = this;
}
// Recovers siblings
leftSibling = retrievePointer(helperStream);
rightSibling = retrievePointer(helperStream);
setLoaded(true);
/*
for (int x = 0; x <= BUCKET_MAX_ELEMENTS; x++) {
IndexPage* temp = page->pointers[x];
if ((temp != NULL) && (temp->bufferIndex() > -1)) {
loadPage(temp);
}
}
*/
delete helperStream;
}
void HistoryScrollBuffer::setMaxNbLines(unsigned int lineCount)
{
HistoryLine* oldBuffer = _historyBuffer;
HistoryLine* newBuffer = new HistoryLine[lineCount];
for ( int i = 0 ; i < qMin(_usedLines,(int)lineCount) ; i++ )
{
newBuffer[i] = oldBuffer[bufferIndex(i)];
}
_usedLines = qMin(_usedLines,(int)lineCount);
_maxLineCount = lineCount;
_head = ( _usedLines == _maxLineCount ) ? 0 : _usedLines-1;
_historyBuffer = newBuffer;
delete[] oldBuffer;
_wrappedLine.resize(lineCount);
}
void HistoryScrollBuffer::getCells(int lineNumber, int startColumn, int count, Character* buffer)
{
if ( count == 0 ) return;
Q_ASSERT( lineNumber < _maxLineCount );
if (lineNumber >= _usedLines)
{
memset(buffer, 0, count * sizeof(Character));
return;
}
const HistoryLine& line = _historyBuffer[bufferIndex(lineNumber)];
//kDebug() << "startCol " << startColumn;
//kDebug() << "line.size() " << line.size();
//kDebug() << "count " << count;
Q_ASSERT( startColumn <= line.size() - count );
memcpy(buffer, line.constData() + startColumn , count * sizeof(Character));
}
void HistoryScrollBuffer::addLine(bool previousWrapped)
{
_wrappedLine[bufferIndex(_usedLines-1)] = previousWrapped;
}
