bool GisBinFile::readCompressdRow(int row, char* charValues)
{
char nBytes;
if(file_.get(nBytes))
{
if((int) nBytes == 4 || (int) nBytes == 8)
{
setWordSize((int) nBytes);
int totBytes = nCols() * dataSize_;
gotoPos(row * nBytes + 1L);
int rowSize;
if((int) nBytes == 4)
{
int rowPtr, nextRowPtr;
read(&rowPtr);
read(&nextRowPtr);
gotoPos(rowPtr);
rowSize = nextRowPtr - rowPtr - 1;
}
else
{
off_t rowPtr, nextRowPtr;
read(&rowPtr);
read(&nextRowPtr);
gotoPos(rowPtr);
rowSize = nextRowPtr - rowPtr;
}
char compressFlag;
file_.get(compressFlag);
// if ( rowSize < totBytes )
if((compressFlag == 0x01) && ((rowSize - 1) < totBytes))
{
unsigned int i = 0;
while (i < totBytes)
{
char charCount;
file_.get(charCount);
char charValue;
file_.get(charValue);
unsigned int j = 0;
for(j = i; j < i + (unsigned char) charCount; j++)
charValues[j] = charValue;
i += (unsigned char) charCount;
}
}
else
this->readNChar(charValues, totBytes);
return true;
}
}
return false;
}
/** No descriptions */
void DirHistoryButton::slotPopupActivated(QAction * action)
{
if (action && action->data().canConvert<int>()) {
int id = action->data().toInt();
emit gotoPos(id);
}
}
void CMap::refreshStripes()
{
const int oldx = m_mapx<<4;
const int oldy = m_mapy<<4;
resetScrolls();
gotoPos(oldx, oldy);
}
bool GisBinFile::readCompressdRow(int row, float* floatValues)
{
char nBytes;
if(file_.get(nBytes))
{
if((int) nBytes == 4 || (int) nBytes == 8)
{
setWordSize((int) nBytes);
int totBytes = nCols() * dataSize_;
unsigned char* expandedValues = new unsigned char[totBytes];
gotoPos(row * nBytes + 1L);
int rowSize;
if((int) nBytes == 4)
{
int rowPtr, nextRowPtr;
read(&rowPtr);
read(&nextRowPtr);
gotoPos(rowPtr);
rowSize = nextRowPtr - rowPtr - 1;
}
else
{
off_t rowPtr, nextRowPtr;
read(&rowPtr);
read(&nextRowPtr);
gotoPos(rowPtr);
rowSize = nextRowPtr - rowPtr - 1;
}
char compressFlag;
file_.get(compressFlag);
if(compressFlag == 0x31)
{
unsigned char* charValues = new unsigned char[rowSize];
this->readNChar((char *) charValues, rowSize);
if(!GisUncompress(rowSize, charValues, totBytes, expandedValues))
{
delete[] charValues;
return false;
}
delete[] charValues;
}
else
this->readNChar((char *) expandedValues, totBytes);
int i = 0;
int j = 0;
while (i < totBytes)
{
char fvalchar[4];
for(int k = 0; k < 4; k++)
{
if(swappMode_)
fvalchar[3 - k] = expandedValues[i++];
else
fvalchar[k] = expandedValues[i++];
}
floatValues[j++] = *((float*) &fvalchar[0]);
}
delete[] expandedValues;
return true;
}
}
return false;
}
