Scrolling Problem

chantw0968 · 07-11-2020, 03:40 PM

Lately, I am unable to scroll through an ebook unless I keep scrolling. This might have happened because of an update. But, I updated to the most recent release 4.20 and that did not fix the issue. I even thought that it was my mouse. So, I replaced it with a better one and that did not fix the problem. I am currently using Logitech M510 on Windows 10. Please help it's very annoying to have to scroll 3 times on the wheel to go only 1 page. I have resorted to using my keyboard to get to another page.

Thank you for any help you can provide.

theducks · 07-11-2020, 03:48 PM

Preferences in the viewer: scrolling
scroll by page

chantw0968 · 07-11-2020, 04:13 PM

So like before when we could simply scroll using the mouse, that function is not available? Now we have to click the margins on either side to go forward a page and backward a page?

thiago.eec · 07-11-2020, 05:23 PM

I have experienced the same problem after updating to 4.20.
But I think the problem is already solved for the next release, according to this bug report: https://bugs.launchpad.net/calibre/+bug/1886231

P. S.: I've tested it running from source, but it didn't work. But, IIRC, the Viewer is built on the fly in that case, so it might not work 100% as expected.

BetterRed · 07-11-2020, 06:06 PM

Quote:

Originally Posted by thiago.eec

I have experienced the same problem after updating to 4.20.
But I think the problem is already solved for the next release, according to this bug report: https://bugs.launchpad.net/calibre/+bug/1886231

P. S.: I've tested it running from source, but it didn't work. But, IIRC, the Viewer is built on the fly in that case, so it might not work 100% as expected.

I think you should report that it's not working at launchpad, your assumption regarding 'built on-the-fly' may be false

BR

Kuram · 07-17-2020, 08:44 PM

I'm getting the same issue now. I usually infrequently update so I couldn't tell you what my old version was, but it now takes 3 'ticks' of mouse-wheel scrolling to advance one page.

jbacelar · 07-18-2020, 04:06 AM

Quote:

Originally Posted by Kuram

it now takes 3 'ticks' of mouse-wheel scrolling to advance one page.

The same happens to me.

theducks · 07-18-2020, 02:20 PM

Quote:

Originally Posted by jbacelar

The same happens to me.

seems to ignore the setting in preferences.
Spacebar is an alternate FORWARD 1 page
Shift spacebar 1 back

thiago.eec · 07-18-2020, 03:00 PM

Quote:

Originally Posted by theducks

seems to ignore the setting in preferences.
Spacebar is an alternate FORWARD 1 page
Shift spacebar 1 back

Well, if you are using the Paged Mode, you can just Arrow Down/Up to change pages. But, the problem here is for people using mouse.
It always worked fine, but now, to solve a problem for touchpads*, it broke things for, at least, some mouses (mine included).

I'm not here criticizing. I know Kovid tried to solve the problem for those using touchpads, but it seems that the solution brought a problem for others that were just fine.

*A fix was made to solve the problem of touchpads passing many pages for the slightest movement.

jbacelar · 07-18-2020, 05:29 PM

Quote:

Originally Posted by theducks

Spacebar is an alternate FORWARD 1 page
Shift spacebar 1 back

A spacebar is not the same as mouse-wheel.

theducks · 07-18-2020, 06:00 PM

Quote:

Originally Posted by jbacelar

A spacebar is not the same as mouse-wheel.

Uhmm
I date before Mice were commonly used with PC's (the original IBM PC. Floppies only) so I know there are alternate ways of navigating (although I am running into a few app that you MUST use a mouse or other pointing device, because TAB, and arrows just move that pesky focus or pointer

FWIW I remember Wordstar (~4.x) making fun of Word slowing folk down by having them use a mouse. they even included a timed 'typing test' using both ways

thiago.eec · 07-18-2020, 08:09 PM

Quote:

Originally Posted by theducks

Uhmm
I date before Mice were commonly used with PC's (the original IBM PC. Floppies only) so I know there are alternate ways of navigating (although I am running into a few app that you MUST use a mouse or other pointing device, because TAB, and arrows just move that pesky focus or pointer

FWIW I remember Wordstar (~4.x) making fun of Word slowing folk down by having them use a mouse. they even included a timed 'typing test' using both ways

Sure... keyboard is always my first option. But, sometimes, I like using the mouse. Also, there might be others that are mouse only people. The goal is to be flexible, reaching every one.

theducks · 07-18-2020, 08:12 PM

Quote:

Originally Posted by thiago.eec

Sure... keyboard is always my first option. But, sometimes, I like using the mouse. Also, there might be others that are mouse only people. The goal is to be flexible, reaching every one.

Oh yes, they type in data and must use the mouse to click OK when a simpl 'enter' will do the job because the OK has those tiny lines around it (box), that makes it the default action.

kovidgoyal · 07-19-2020, 12:19 AM

Since apparently wheel mice behave wildly differently and there is no reliable way of guessing what a given mouse will produce, I suppose the only fix is to add an option to control this behavior, for wheels that generate pixel scrolls.

jbacelar · 07-19-2020, 03:21 AM

Wonderful idea.
Thank you very much, Kovid.

And I hope you are recovering as provided.

07-11-2020, 03:40 PM	#1
chantw0968 Enthusiast Posts: 46 Karma: 10 Join Date: Apr 2014 Device: sony e-reader	Scrolling Problem Lately, I am unable to scroll through an ebook unless I keep scrolling. This might have happened because of an update. But, I updated to the most recent release 4.20 and that did not fix the issue. I even thought that it was my mouse. So, I replaced it with a better one and that did not fix the problem. I am currently using Logitech M510 on Windows 10. Please help it's very annoying to have to scroll 3 times on the wheel to go only 1 page. I have resorted to using my keyboard to get to another page. Thank you for any help you can provide.

07-11-2020, 03:48 PM	#2
theducks Well trained by Cats Posts: 29,968 Karma: 55705602 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Preferences in the viewer: scrolling scroll by page Attached Thumbnails

07-19-2020, 03:21 AM	#15
jbacelar Interested in the matter Posts: 421 Karma: 426094 Join Date: Dec 2011 Location: Spain, south coast Device: Pocketbook InkPad 3	Wonderful idea. Thank you very much, Kovid. And I hope you are recovering as provided. Last edited by jbacelar; 07-19-2020 at 03:24 AM.

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07-11-2020, 04:13 PM	#3
chantw0968 Enthusiast Posts: 46 Karma: 10 Join Date: Apr 2014 Device: sony e-reader	So like before when we could simply scroll using the mouse, that function is not available? Now we have to click the margins on either side to go forward a page and backward a page?

07-11-2020, 05:23 PM	#4
thiago.eec Guru Posts: 946 Karma: 1183425 Join Date: Dec 2016 Location: Goiânia - Brazil Device: iPad, Kindle Paperwhite	I have experienced the same problem after updating to 4.20. But I think the problem is already solved for the next release, according to this bug report: https://bugs.launchpad.net/calibre/+bug/1886231 P. S.: I've tested it running from source, but it didn't work. But, IIRC, the Viewer is built on the fly in that case, so it might not work 100% as expected.

07-17-2020, 08:44 PM	#6
Kuram Enthusiast Posts: 38 Karma: 10 Join Date: Aug 2013 Device: PW1, KAO (current)	I'm getting the same issue now. I usually infrequently update so I couldn't tell you what my old version was, but it now takes 3 'ticks' of mouse-wheel scrolling to advance one page.

07-19-2020, 12:19 AM	#14
kovidgoyal creator of calibre Posts: 44,012 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Since apparently wheel mice behave wildly differently and there is no reliable way of guessing what a given mouse will produce, I suppose the only fix is to add an option to control this behavior, for wheels that generate pixel scrolls.

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