[Kdenlive-devel] Drag Value

[Gabriel Gazzán]

2011/2/3 Simon Eugster <simon.eu at gmail.com>

> I think we could drop both the reset button (e.g. modifier + mouse
> button) and the radio button (click on a slider to select it, as in
> the screenshot shown by jb).
>

Agreed


>
> I find it hard to interpret colors as relative numbers (regarding
> background color). And I always want to see the relative value, not
> only when dragging.
> http://granjow.net/uploads/kdenlive/kdenlive-slider-colors.png
> Though the advantage is that it does not take much space. But on the
> other hand I find tiny sliders generally a nuisance, or, to put it
> differently, big sliders are much more comfortable to work with.
> Better precision, better visualization of the current value.
>

The problem I see with that system is that the interface will always have a
heavy charge of colored rectangles visible.
Frankly I think I prefer any valid method for hiding/showing the standard
sliders over any of the other proposals seen up to now.



But couldn't we optimize the Effect Stack widget as well? Take a look
> at the screenshot above; Half of the space is empty.
> I did a quick sketch, which took about 100 times as long as it should
> have because of the packed unintuitivity in GIMP:
> http://granjow.net/uploads/kdenlive/kdenlive-effect-stack.png
> * Effect Stack list moved to the top, taking only as much room as required
> * Arrow indicating which effect is applied first
> * Reset icon and Radiobuttons removed
> * Parameters can flow side-by-side
>

I'm all for saving space (used by controls) on every place we can.
I see a problem though with the arrange of the effect stack and the selected
effect parameters seen in *kdenlive-effect-stack.png*:
- the effect stack area would tend to require big horizontal room to be
comfortable used/understood.
- the selected effect parameters area would adapt well to this wide
proportion, no doubt, BUT
- where do we place the panel then? Now, placed behind the Project Tree and
beside the monitor panel, the space we have for that panel is usually more
taller than wide, not the opposite. I don't think devoting more horizontal
space to the effects stack/parameters is a good thing.

To me After Effects effects stack has the answer for this as well.
http://www.rtraction.com/blog/wp-content/uploads/2009/05/vine-2.gif
This image shows two effects (named Stroke and Stroke 2), each one showing
its parameters.
The effect has a control in the form of a little triangle to the left of
each effect name (but could be + - signs of course) to expand/collapse the
effect parameter visibility.
This way, we could not only get rid of the current two column
arrangement *[effects
| parameters of selected effect]*, but also be able to do something we
cannot currently do: tweak at the same time parameters of several (expanded)
effects!




> Original image:
> http://granjow.net/uploads/kdenlive/kdenlive-effect-stack-original.png
>

I don't have any problem with what's shown in this image, provided:
- there's a central way to hide all the sliders easily.
- we hide the reset buttons, keeping the function as a right click menu
option


greetings,
Gabriel
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