Bug report #6718
Edit button toggle not processed if qgis is busy
|Affected QGIS version:||master||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||end of life|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||15883|
Steps to reproduce:
1. Have an expensive layer loaded (a postgis view using a chain of st_buffer with positive and negative values, maybe)
2. Load another layer (linear, I was using)
3. Enable snapping option, requiring snapping on both the above layers
4. Enter editing mode in the linear layer
5. Request moving a vertex
6. Verify that the move takes a LOT of time. CPU should be spinning, you shouldn't see the move on the canvas (yet). The cursor spins and changes shape when you move from canvas to menu bar. If this is not happening try better the steps before.
7. While the CPU is spinning, click on the Edit button again. You should NOT see the button immediately rendered as depressed because qgis is still busy.
8. Wait for the hard qgis task to complete. At this point you should see the vertex moved. BUT:
- QGIS asks you to Save changes
- QGIS doesn't ask you anything.
- The Edit button is depressed
- The layer being edited has the "edit" icon in the layer manager.
#1 Updated by ramon . almost 8 years ago
I think this is more general than just the edit button. For example, I routinely encounter something very like this if I'm zooming around an image and selecting the pan tool while QGIS is thinking, results in the pan tool not being selected once QGIS stops thinking.
A related, but maybe not quite the same one (which is rarer) is if I have a vector layer I'm editing over a raster. Zoom in on the raster, select Add Feature while QGIS is thinking, and usually the Add Feature bit is ignored, and I still have a zoom tool. Occassionaly, the Add Feature is depressed, but I have a mouse cusor that looks and works like a zoom tool.
#3 Updated by Giovanni Manghi over 1 year ago
- Resolution set to end of life
- Status changed from Open to Closed
End of life notice: QGIS 2.18 LTR