If the QmitkSliderLevelWindowWidget has to handle a image with a lower level window range that is negative infinite (e.g. on pixel in the image with value negative infinite) it got stuck in a infinite loop in QmitkSliderLevelWindowWidget.cpp line 152ff.
Reason: It is unpossible to ever reach the stopping criteria
i < m_MoveHeight;
The paint event should be rewritten to also handle situations, where the range contain infinite boundaries or NaN values, without crashing ot get stucked,
| Restricted Differential Revision | |
| Restricted Differential Revision |
@kislinsk / @nolden: The onPaint method is quite a mess and the documentation of the class does not really cover painting/UI features. Do you know what the features are/where. The paint code looks quite large and mingeled for the small tasks to just get ticks and numbers at certain positions. But may be I am missing something or there is stuff going on that in not painting at all ?!?
@kislinsk: I think found a minimal "patch" (more a workarround) to get at least rid of the "freeze". We should discuss it tomorrow.
The accute problem is fixed. But the LevelWindow and widget need some treat and refactoring (see also T24962).