https://bugs.kde.org/show_bug.cgi?id=436174
Bug ID: 436174
Summary: Usability issues with zooming & scrolling the time
line
Product: kdenlive
Version: 20.12.2
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: User Interface
Assignee: j...@kdenlive.org
Reporter: jer...@ecere.com
Target Milestone: ---
SUMMARY
The interface to scroll and zoom the timeline is very difficult to use and
wastes users a lot of time ending up scrolled at an unintended point.
Aspect #1
STEPS TO REPRODUCE
Use ctrl-mouse wheel with the intent to zoom in & out on the current time
positon
OBSERVED RESULT
Always zooming where I don't intend to zoom. I'm not even sure whether it zooms
in on the cursor or in the middle of the screen because it appears so random.
EXPECTED RESULT
When the time bar is on the screen, more likely than not the user intends to
zoom on the time bar.
Especially if it's centered on the screen and/or the cursor is close to the
time bar.
Aspect #2
STEPS TO REPRODUCE
Click the timeline horizontal scroll bar to try to scroll
OBSERVED RESULT
The timeline is scrolled even before the mouse is moved.
EXPECTED RESULT
No scrolling until the suer moves the mouse. Taking into account the user's
click position on the scroll thumb so that any scrolling is relative to where
the user clicked and where the scroll thumb was originally.
Aspect #3
STEPS TO REPRODUCE
Go to hotkeys, find a hotkey for scrolling or zooming the time line via the
keyboard
OBSERVED RESULT
Could not find any hotkeys for scrolling or zooming the timeline
EXPECTED RESULT
There should be easy keyboard hotkeys for scrolling and zooming the timeline
(towards the timebar if in view / center of the screen otherwise).
SOFTWARE/OS VERSIONS
appimage 20.12.2 on Artix Linux
ADDITIONAL INFORMATION
There are serious usability issues with zooming in/out & scrolling the
timeline...
Clicking the scroll thumb should not move it if you just click it but don't
move the mouse yet...
and exactly what ctrl-wheel mouse centers on is super on clear. My opinion is
that it should always keep the time bar right in the middle of screen as you
ctrl-wheel up/down super not* clear. sometimes it feels like it centers on the
mouse position, but sometimes it simply does not do that.
even if it did always center on the mouse, 2 notches and wherever you're trying
to zoom on (which really is ALWAYS the timebar) is no longer in the middle of
the screen so you get lost. (also keyboard hotkeys for scrolling the timeline
would be extremely helpful)
as well for zooming in/out on the timebar centered in the middle of the screen.
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