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Old 08-23-2014, 12:31 AM   #1
eris23
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Mouse-Wheel Scrolling changed in Calibre 2.0 ebook-viewer?
Is there a way to adjust mouse-wheel scrolling in Calibre 2.0 ebook-viewer? It seems that each click of the mouse-wheel scrolls fewer lines than in previous versions. I can't seem to find a place to change it in thhe preferences.
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Old 08-23-2014, 12:53 AM   #2
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https://github.com/kovidgoyal/calibr...0115153709409a
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Old 08-23-2014, 05:00 PM   #3
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Originally Posted by kovidgoyal View Post
Can you add a preference for how many lines will be scrolled for each scroll-wheel click?
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Old 08-23-2014, 05:15 PM   #4
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No, it doesn't go by lines, since the concept of "line: is undefined, different parts of the book can have different line sizes.
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Old 08-29-2014, 03:49 AM   #5
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No, it doesn't go by lines, since the concept of "line: is undefined, different parts of the book can have different line sizes.
Can a preference be made to alter the "8" in:

"scroll_amount = ((num_degrees if vertical else num_degrees_h)/ 120.0) * .2 * -1 * 8"

to, for instance, a choice of "1, 4, 8, 12, 16" or "1, 2, 4, 8, 16" or an arbitrary number?
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Old 08-29-2014, 04:03 AM   #6
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You are welcome to run calibre from source and change it to whatever you like, doing so is very easy, instructions are in the user manual.
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