The markers of selection misbehave after image zoom in

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dma_k
Posts: 80
Joined: Tue Apr 14, 2009 8:50 am

The markers of selection misbehave after image zoom in

Post by dma_k » Mon Apr 26, 2010 10:29 pm

The problem can be shortly described as follows: when I make a selection on the image (e.g. using a mouse) and then zoom the image in, the eight selection rectangular markers (corner or side) do not function correctly: when the mouse is over them, the cursor pointer does not change the shape indicating the resize of selection, and the is no way to resize the selection. I think, the information about the position of selection markers is not updated correctly after zooming.

The workarounds:
  • scroll the image (up/down/left/right) a bit
  • switch to another application and back (Alt+Tab, Alt+Tab)
and now the selection is again resizable using the markers.
Steps to reproduce:
  1. Open the image (that when zoomed in, will not fit the window and cause scroll bars to appear)
  2. Make any selection (I used Ctrl+A) (It does not matter, if selection will fit the window after zooming in or not: the bug is reproducible in both cases, maybe smaller selection is more evident)
  3. Zoom image in (I used Alt+MouseScroll). Now the selection cannot be resized using markers.
Environment:
  • XnVew v1.97.2
  • WinXP Pro EN SP3
Last edited by dma_k on Tue Apr 27, 2010 9:33 am, edited 2 times in total.

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Clo
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Re: The markers of selection misbehave after image zoom in

Post by Clo » Mon Apr 26, 2010 11:12 pm

:arrow: dma_k

:) Hello !

• I cannot confirm, here I can always resize the selection after the image was zoomed in, using any of the eight grab points…
Win XP-Pro SP2 - Fr. XnView 1.97.3

:mrgreen: KR
Claude
Clo
Old user ON SELECTIVE STRIKE till further notice

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dma_k
Posts: 80
Joined: Tue Apr 14, 2009 8:50 am

Re: The markers of selection misbehave after image zoom in

Post by dma_k » Tue Apr 27, 2010 9:25 am

Claude, thank you very much for testing. I have made corrections on test steps: when you zoom the image in, the image should be larger then your view size, so scrollbars appear – then the drag points do not work. This bug exists for already quite a long time :) I have re-tested it for v1.97.3 – the same story. I have also found a nice effect: when you zoom in and zoom out (Alt+MouseScroll Up/Down sequentially), the drag points work every 2nd round :) Very funny.

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dma_k
Posts: 80
Joined: Tue Apr 14, 2009 8:50 am

Re: The markers of selection misbehave after image zoom in

Post by dma_k » Thu Jun 16, 2011 11:14 pm

v1.98.2 – the bug is almost fixed!

I supply the screenshots of xnview before the zoom:
Image

and after the the zoom (I used Ctrl + mouse scroll in, the image was zoomed to 100%):
Image

Notice the mouse pointer does not change the shape. But the resize works at expected position.

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