Two interesting behaviors when operating the mouse wheel on Sticky Notes

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rakunavi
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Two interesting behaviors when operating the mouse wheel on Sticky Notes

Post by rakunavi »

Hello all,

Case 1

  • Turning the mouse wheel while holding down the Ctrl key changes the Zoom factor. On the other hand, the size of Sticky Notes is not affected by the Zoom factor of the screen and remains constant. Therefore, if you move the mouse pointer to around the right side of the Sticky Notes and then zoom out using Ctrl+Wheel, the mouse pointer and the sticky will overlap somewhere unless you move the mouse pointer.

    Now, here is the main point. If the mouse pointer and Sticky Notes have overlaped and you continue to turning the wheel while hold down the Ctrl key, I noticed that the page will change. In other words, although the user is only supposed to be changing the magnification of the page by Ctrl+wheel operation, the screen may suddenly switch to another page.

    The verification procedure in the video is as follows.

    1. Set the page layout to non-continuous single page and the Zoom factor to Page Fit.
    2. Move the mouse pointer to the right of Sticky Notes.
    3. When trying to zoom out using Ctrl+Wheel, the page changes unintentionally.
    • Animation1.gif
    • sample.zip
    In Acrobat, when the mouse pointer and Sticky Notes overlap, subsequent Ctrl+Whell operations are ignored; in Foxit PDF Editor, the Zoom factor continues to change even when the mouse pointer and Sticky Notes overlap. There is a slight difference in behavior between the two, but the page does not change as it does in the PDF-XChange Editor. The behavior of PDF-XChange Editor seems somewhat surprising to me at least, but I wonder if this is intended by the developer.

    • Acrobat.gif

      FOXIT.gif
Case 2

  • When the mouse pointer is over Sticky Notes and the mouse wheel is turned (without pressing the Ctrl key), the page changes. If the mouse pointer is not moved at all during the series of operations, I noticed that the Zoom factor cannot be changed by Ctrl+Wheel on the page after the page is changed. Note that it is almost impossible to keep the mouse pointer position fixed with a normal mouse, so this issue is limited to cases in which a trackball or similar device is used to control the mouse pointer. Compared to the behavior in case 1, this behavior seems even more surprising, but is this intended by the developer?

    The verification procedure in the video is as follows.

    1. Set the page layout to non-continuous single page and the Zoom factor to Page Fit.
    2. Move the mouse pointer over the Sticky Notes. Note that the mouse pointer is not moved at all in subsequent operations.
    3. Use the mouse wheel to change pages.
    4. After the page has been changed, Ctrl + wheel operation does not change the zoom factor.
  • Animation2.gif

I hesitate to post a series of posts (1st, 2nd, 3rd, 4th, 5th) in succession, but the capacity of my brain register is extremely limited, so please forgive me somehow.

Thank you for taking the time to read this message.

Best regards,
rakunavi

- PDF-XChange Editor Plus Version: 10.4.0 build 388
- Adobe Acrobat Reader Continuous Release Version 2024.003.20112
- Foxit PDF Editor Pro Version 13.1.2.22442
- OS Version: Windows 11 Home 23H2 Build 22631.4169
- PC Model: Lenovo IdeaPad C340-15IWL, HP All-in-One 22-c0xx
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Paul - PDF-XChange
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Re: Two interesting behaviors when operating the mouse wheel on Sticky Notes

Post by Paul - PDF-XChange »

Hi, rakunavi

thanks for this. I think this is the result of the Wheel being used to scroll when the CTRL modifier is not used. Perhaps that is being influenced by the mouse being over the sticky note. I see that at the zoom level where I was getting the change from zoom to scroll was also the the one where the note obscured the page for me. If I move the note and put the mouse over the page it again zooms.

Do you see the same?
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Paul O'Rorke
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rakunavi
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Re: Two interesting behaviors when operating the mouse wheel on Sticky Notes

Post by rakunavi »

Hi Paul, thank you for your reply.

I have the same understanding of the technical background as you. Currently, this issue has to do with the fact that Wheel functions as a scroll even when the Ctrl modifier is used.

However, in case 1, when there are many Sticky Notes, it is very strange to switch pages just because the mouse pointer happens to be over a Sticky Note when the zoom factor is changed by Ctrl+Wheel operation in succession. Also, as shown in the video below, this problem does not occur when the comment text spans multiple lines, but only when it fits on a single line. Wonder why the number of lines of text affects the behavior of Ctrl+Wheel?

  • Animation.gif
In case 2, even though there are no Sticky Notes on the new page, the process continues as it did before the page was switched, and the Ctrl+Wheel operation does not seem to be working.

Personally, case 2 seems like an obvious bug. I am also suspicious of the behavior of case 1, since generally when there is a bug of some sort, it is often due to the developer not having any idea of the behavior leading up to that state.

Best regards,
rakunavi
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Re: Two interesting behaviors when operating the mouse wheel on Sticky Notes

Post by Paul - PDF-XChange »

Hi, rakunavi

thanks for the clarification. As always it is appreciated.
I see now what you mean, especially example 2.

I have asked the devs to take a look.
Best regards

Paul O'Rorke
PDF-XChange Support
http://www.pdf-xchange.com