Calibre scroll text

normnmiles · 09-01-2009, 02:17 PM

Hello. I am having a problem with the 0.6.x versions of Calibre's ebook viewer. The 0.6.x versions scroll multiple lines when using the mouse wheel. In past 0.5.x versions the mouse wheel only scrolled one line at a time. I am not sure what controls the amount of lines that are scrolled and haven't seen any preferences for it. I have also tried changing my mouse wheel settings under Windows but that hasn't helped.

Is there a way to change the scrolling behavior? If not is there a way to map the down arrow to scroll one line instead of a page?

Thank you.

kovidgoyal · 09-01-2009, 03:28 PM

If I remember right it should be scrolling two lines with the mouse wheel. Is that not the case?

Kostas · 09-01-2009, 03:32 PM

Quote:

Originally Posted by kovidgoyal

If I remember right it should be scrolling two lines with the mouse wheel. Is that not the case?

Yep! That's what it does on my system (Win XP). And of course it scrolls on line with the down arrow.

kovidgoyal · 09-01-2009, 03:36 PM

IIRC you can also scroll up/down one line with the j/k keys

normnmiles · 09-01-2009, 07:49 PM

It scrolls about 5-7 lines using the wheel. Thanks for the j/k tip. I will try that.

Kostas, I have Windows XP as well but have noticed this behavior on my Windows 7 machine as well. Just noticed the difference with the 0.6.x versions.

Could it be the .epub files I am using?

Kostas · 09-01-2009, 08:14 PM

(error)

kovidgoyal · 09-01-2009, 08:15 PM

Open a ticket and attach one of your epub files to it.

user_none · 09-01-2009, 09:10 PM

It's not the epub. Scrolling was changed to be 1/8 (honestly I can't remember what I made it) the page with 0.6. The issue was switching to PyQt 4.5 caused double scroll bars and when the internal scroll bars were disabled (due to the design of the viewer) scrolling stopped completely. I chose a percentage to scroll instead of one line mainly because large screens would take forever to scroll. With j/k and the arrows scrolling by smaller amounts I decided that the wheel should scroll a larger amount.

normnmiles · 09-01-2009, 09:21 PM

Quote:

Originally Posted by kovidgoyal

Open a ticket and attach one of your epub files to it.

Created ticket #3383. Thank you again.

normnmiles · 09-04-2009, 09:01 AM

Quote:

Originally Posted by user_none

It's not the epub. Scrolling was changed to be 1/8 (honestly I can't remember what I made it) the page with 0.6. The issue was switching to PyQt 4.5 caused double scroll bars and when the internal scroll bars were disabled (due to the design of the viewer) scrolling stopped completely. I chose a percentage to scroll instead of one line mainly because large screens would take forever to scroll. With j/k and the arrows scrolling by smaller amounts I decided that the wheel should scroll a larger amount.

Thanks for the information which explains the behavior. Though my j/k scrolls 1/8 of the page and the arrow down scrolls a page. I don't know of an option to scroll line by line. It's bothersome for me since I lose my place if I scroll more than a line.

Thanks again for the explanation.

user_none · 09-04-2009, 06:49 PM

Quote:

Originally Posted by normnmiles

Thanks for the information which explains the behavior. Though my j/k scrolls 1/8 of the page and the arrow down scrolls a page. I don't know of an option to scroll line by line. It's bothersome for me since I lose my place if I scroll more than a line.

Thanks again for the explanation.

I'll play with the scrolling a bit so that 1 line, part of page, and 1 page will all be available.

user_none · 09-05-2009, 08:52 AM

I've committed a change to the scrolling behavior. Here is how each way should scroll:

Page down, down, space: Scroll to next page.
Page up, up, backspace: Scroll to previous page.
Home: Go to start of section (this may or may not be the start of the document).
End: Go to end of section (this may or may not be the end of the document).
Mouse wheel: Scroll by 20% of page either up or down (this may not be 20% depending on the sensitivity of your mouse wheel).
J: Scroll 15 pixels down.
K: Scroll 15 pixels up.
H: Scroll 15 pixels left.
L: Scroll 15 pixels right.

kovidgoyal · 09-05-2009, 10:32 AM

May be a good idea to add Ctrl+Home and Ctrl+End for beginning of doc/end of doc

user_none · 09-05-2009, 11:17 AM

Quote:

Originally Posted by kovidgoyal

May be a good idea to add Ctrl+Home and Ctrl+End for beginning of doc/end of doc

Already does. Missed that when I was making the list.

09-01-2009, 02:17 PM	#1
normnmiles Junior Member Posts: 4 Karma: 10 Join Date: Mar 2009 Device: bebook	Calibre scroll text Hello. I am having a problem with the 0.6.x versions of Calibre's ebook viewer. The 0.6.x versions scroll multiple lines when using the mouse wheel. In past 0.5.x versions the mouse wheel only scrolled one line at a time. I am not sure what controls the amount of lines that are scrolled and haven't seen any preferences for it. I have also tried changing my mouse wheel settings under Windows but that hasn't helped. Is there a way to change the scrolling behavior? If not is there a way to map the down arrow to scroll one line instead of a page? Thank you.

09-01-2009, 08:14 PM	#6
Kostas Still wondering why Posts: 253 Karma: 800 Join Date: Jun 2009 Location: Athens, Greece Device: PRS 505, (BlackBerry Bold ?)	(error) Last edited by Kostas; 09-01-2009 at 08:18 PM.

09-05-2009, 08:52 AM	#12
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	I've committed a change to the scrolling behavior. Here is how each way should scroll: Page down, down, space: Scroll to next page. Page up, up, backspace: Scroll to previous page. Home: Go to start of section (this may or may not be the start of the document). End: Go to end of section (this may or may not be the end of the document). Mouse wheel: Scroll by 20% of page either up or down (this may not be 20% depending on the sensitivity of your mouse wheel). J: Scroll 15 pixels down. K: Scroll 15 pixels up. H: Scroll 15 pixels left. L: Scroll 15 pixels right.

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09-01-2009, 03:28 PM	#2
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If I remember right it should be scrolling two lines with the mouse wheel. Is that not the case?

09-01-2009, 03:36 PM	#4
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	IIRC you can also scroll up/down one line with the j/k keys

09-01-2009, 07:49 PM	#5
normnmiles Junior Member Posts: 4 Karma: 10 Join Date: Mar 2009 Device: bebook	It scrolls about 5-7 lines using the wheel. Thanks for the j/k tip. I will try that. Kostas, I have Windows XP as well but have noticed this behavior on my Windows 7 machine as well. Just noticed the difference with the 0.6.x versions. Could it be the .epub files I am using?

09-01-2009, 08:15 PM	#7
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Open a ticket and attach one of your epub files to it.

09-01-2009, 09:10 PM	#8
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	It's not the epub. Scrolling was changed to be 1/8 (honestly I can't remember what I made it) the page with 0.6. The issue was switching to PyQt 4.5 caused double scroll bars and when the internal scroll bars were disabled (due to the design of the viewer) scrolling stopped completely. I chose a percentage to scroll instead of one line mainly because large screens would take forever to scroll. With j/k and the arrows scrolling by smaller amounts I decided that the wheel should scroll a larger amount.

09-05-2009, 10:32 AM	#13
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	May be a good idea to add Ctrl+Home and Ctrl+End for beginning of doc/end of doc

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