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#5584 closed feature (worksforme)

Opened May 05, 2010 11:57AM UTC

Closed May 06, 2010 02:46AM UTC

does not seem able to be able to take into account width of handle when positioning

Reported by: GayQuery Owned by:
Priority: major Milestone: 1.9.0
Component: ui.slider Version: 1.8.1
Keywords: handle width left Cc:
Blocked by: Blocking:

Actually this could be considered a bug since as far as I can tell it doesn't support changing the width of the handle at all without this happening.



Where min=1 and Max=pages the handle juts out of the end of the slider.

An example, if pages is 4, this gives the range 1,2,3,4 and width 25%. However:

Line 629:

valPercent = ( self.values(i) - self._valueMin() ) / ( self._valueMax() - self._valueMin() ) * 100;

This sets the positions like so (exclam=pos, square=container):

[! ! ! !] :(

The result is that when in the last position the slider starts from the last ! and ends at the sad face landmark.

The last position is 100% left. It should be 100%-width. slider is using 33.3% increments each time instead of 25%.

It is easy to take into account the handle width with:

valPercent = ( self.values(i) - self._valueMin() ) / ( (self._valueMax() - self._valueMin()-1) ) * 100;

Line 626 also needs to be changed.

Resulting in:

[! ! ! ! :]

I probably wouldn't recommend just doing this blind as it would probably break some other aspect of how slider is to be used. A conditional/option would be ideal to choose between handler positioning/sizing settings. which should choose between centred or to the left. I believe some better/clearer settings are required for the handle settings.

Also, left=(handlewidth*(self.values(i)-self._valueMin()))+"%" would be more efficient.

Apparently, the scrollbar example seems to manage to keep the bar contained. If you look at the code it is unnecessarily complex. Slider should support this ability internally. It was quicker for me to add a couple of -1s to the minified source than to fully absorb the scrollbar example and exactly how it works which seems to be an ugly and kludged solution to implementing a feature that slider doesn't seem to provide; it probably should.

I would recommend making a "get val percent" function to start of with.

This should also be investigated for the slider's onclick clipping.

Attachments (0)
Change History (3)

Changed May 05, 2010 12:00PM UTC by GayQuery comment:1

Make: ((self._valueMax()-self._valueMin()-1))

As: (self._valueMax()-(self._valueMin()-1))

Changed May 05, 2010 12:01PM UTC by GayQuery comment:2

Ugg, line 656*

Changed May 06, 2010 02:46AM UTC by scottgonzalez comment:3

resolution: → worksforme
status: newclosed

Slider handles are centered over the appropriate value. When the slider is at the highest possible value, the center of the handle is lined up with the end of the bar. The same is true when the slider is at the lowest possible value. This is as designed.