void FITSHistogramCommand::undo()
{
FITSView *image = tab->getView();
FITSData *image_data = image->getImageData();
QApplication::setOverrideCursor(Qt::WaitCursor);
if (delta != NULL)
{
double min,max,stddev,average,median,snr;
min = image_data->getMin();
max = image_data->getMax();
stddev = image_data->getStdDev();
average = image_data->getMean();
median = image_data->getMedian();
snr = image_data->getSNR();
reverseDelta();
restoreStats();
saveStats(min, max, stddev, average, median, snr);
}
else
{
switch (type)
{
case FITS_ROTATE_CW:
image_data->applyFilter(FITS_ROTATE_CCW);
break;
case FITS_ROTATE_CCW:
image_data->applyFilter(FITS_ROTATE_CW);
break;
case FITS_FLIP_H:
case FITS_FLIP_V:
image_data->applyFilter(type);
break;
default:
break;
}
}
if (histogram != NULL)
{
histogram->constructHistogram();
if (tab->getViewer()->isStarsMarked())
image_data->findStars();
}
image->popFilter();
image->rescale(ZOOM_KEEP_LEVEL);
image->updateFrame();
QApplication::restoreOverrideCursor();
}
void FITSHistogramCommand::redo()
{
FITSView *image = tab->getImage();
FITSImage *image_data = image->getImageData();
float *image_buffer = image_data->getImageBuffer();
int width = image_data->getWidth();
int height = image_data->getHeight();
memcpy(buffer, image_buffer, width * height * sizeof(float));
switch (type)
{
case FITS_AUTO:
case FITS_LINEAR:
image_data->applyFilter(FITS_LINEAR, image_buffer, min, max);
break;
case FITS_LOG:
image_data->applyFilter(FITS_LOG, image_buffer, min, max);
break;
case FITS_SQRT:
image_data->applyFilter(FITS_SQRT, image_buffer, min, max);
break;
default:
image_data->applyFilter(type, image_buffer);
break;
}
if (histogram != NULL)
{
histogram->updateHistogram();
if (tab->getViewer()->isStarsMarked())
image_data->findStars();
}
image->rescale(ZOOM_KEEP_LEVEL);
image->updateFrame();
}
void FITSHistogramCommand::undo()
{
FITSView *image = tab->getImage();
FITSImage *image_data = image->getImageData();
memcpy( image_data->getImageBuffer(), buffer, image_data->getWidth() * image_data->getHeight() * sizeof(float));
image_data->calculateStats(true);
if (histogram != NULL)
{
histogram->updateHistogram();
if (tab->getViewer()->isStarsMarked())
image_data->findStars();
}
image->rescale(ZOOM_KEEP_LEVEL);
image->updateFrame();
}
void FITSHistogramCommand::redo()
{
FITSView *image = tab->getView();
FITSData *image_data = image->getImageData();
uint8_t *image_buffer = image_data->getImageBuffer();
unsigned int size = image_data->getSize();
int channels = image_data->getNumOfChannels();
int BBP = image_data->getBytesPerPixel();
QApplication::setOverrideCursor(Qt::WaitCursor);
if (delta != NULL)
{
double min,max,stddev,average,median,snr;
min = image_data->getMin();
max = image_data->getMax();
stddev = image_data->getStdDev();
average = image_data->getMean();
median = image_data->getMedian();
snr = image_data->getSNR();
reverseDelta();
restoreStats();
saveStats(min, max, stddev, average, median, snr);
}
else
{
saveStats(image_data->getMin(), image_data->getMax(), image_data->getStdDev(), image_data->getMean(), image_data->getMedian(), image_data->getSNR());
// If it's rotation of flip, no need to calculate delta
if (type >= FITS_ROTATE_CW && type <= FITS_FLIP_V)
{
image_data->applyFilter(type, image_buffer);
}
else
{
uint8_t *buffer = new uint8_t[size * channels * BBP];
if (buffer == NULL)
{
qWarning() << "Error! not enough memory to create image buffer in redo()" << endl;
QApplication::restoreOverrideCursor();
return;
}
memcpy(buffer, image_buffer, size * channels * BBP);
float dataMin = min, dataMax = max;
switch (type)
{
case FITS_AUTO:
case FITS_LINEAR:
image_data->applyFilter(FITS_LINEAR, NULL, &dataMin, &dataMax);
break;
case FITS_LOG:
image_data->applyFilter(FITS_LOG, NULL, &dataMin, &dataMax);
break;
case FITS_SQRT:
image_data->applyFilter(FITS_SQRT, NULL, &dataMin, &dataMax);
break;
default:
image_data->applyFilter(type);
break;
}
calculateDelta(buffer);
delete [] buffer;
}
}
if (histogram != NULL)
{
histogram->constructHistogram();
if (tab->getViewer()->isStarsMarked())
image_data->findStars();
}
image->pushFilter(type);
image->rescale(ZOOM_KEEP_LEVEL);
image->updateFrame();
QApplication::restoreOverrideCursor();
}
