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DialSlider (curved slider ctrl) [message #15530]

Mon, 28 April 2008 16:58

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

I really only made this as an experiment to see how easy it was, so I thought I may as well post the results. It wasn't as easy as I'd hoped, the difficulty is mainly in creating the images and layering them correctly with an alpha mask.

It works quite well though (the frames are a bit too thick here, but look better when it's slightly smaller):
index.php?t=getfile&id=1168&private=0

Works like a normal SliderCtrl (but with some features missing). Clicking once sets the bar to the correct position by working out the necessary angle.

(source and example in next post)

James

Attachment: DialSlider.png
(Size: 11.15KB, Downloaded 885 times)

[Updated on: Mon, 28 April 2008 17:09]

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Re: DialSlider (curved slider ctrl) [message #15531 is a reply to message #15530]

Mon, 28 April 2008 17:01

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

Moved to later post.

[Updated on: Tue, 29 April 2008 11:07]

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Re: DialSlider (curved slider ctrl) [message #15532 is a reply to message #15531]

Mon, 28 April 2008 17:44

bytefield
Messages: 210
Registered: December 2007

Experienced Member

Hi, I've tested it on Linux and have trouble. It isn't displayed correct. Also don't forget to end DialSlider.cpp with new line, Gcc give warnings Razz

.
However, it is a nice widget and an good example.
index.php?t=getfile&id=1170&private=0

Andrei

Attachment: DialSlider.jpg
(Size: 33.28KB, Downloaded 842 times)

cdabbd745f1234c2751ee1f932d1dd75

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Re: DialSlider (curved slider ctrl) [message #15533 is a reply to message #15532]

Mon, 28 April 2008 18:02

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

Thanks, I was too lazy to reboot in to Linux to test it. My suspicion is that the display problem is something internal to Draw/ImageDraw (I know there have been some fixes recently), but I'll test it tomorrow and see if I can fix it.

[Updated on: Mon, 28 April 2008 18:04]

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Re: DialSlider (curved slider ctrl) [message #15550 is a reply to message #15533]

Tue, 29 April 2008 00:38

Mindtraveller
Messages: 917
Registered: August 2007
Location: Russia, Moscow rgn.

Experienced Contributor

Thanx for new useful control.
I think arrow should be more straight ("official looking"). Also it would be handy to see minimum/maximum values along with current value. Display of these values should be optional. It`s a kind`of de-facto standard.

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Re: DialSlider (curved slider ctrl) [message #15564 is a reply to message #15550]

Tue, 29 April 2008 11:05

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

Mindtraveller wrote on Mon, 28 April 2008 23:38

I think arrow should be more straight ("official looking"). Also it would be handy to see minimum/maximum values along with current value. Display of these values should be optional.

I'm not 100% sure what you mean about the arrow, something like this?
index.php?t=getfile&id=1174&private=0

(IMO a bit ugly, perhaps it's too long now)

I've added min/max labels and improved the mouse handling when dragging. Zip in next post.

Ps. I should warn you that at the moment the control does 2 rotations on 192x192 images everytime the position is changed (these are cached for Paint, so that is fast). I can optimize it at some point but it makes the code much more complex/difficult so I haven't bothered yet.

Attachment: DialSlider.png
(Size: 12.64KB, Downloaded 802 times)

[Updated on: Tue, 29 April 2008 12:44]

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Re: DialSlider (curved slider ctrl) [message #15565 is a reply to message #15564]

Tue, 29 April 2008 11:08

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

See later post for source.

[Updated on: Tue, 29 April 2008 18:47]

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Re: DialSlider (curved slider ctrl) [message #15567 is a reply to message #15565]

Tue, 29 April 2008 12:31

bytefield
Messages: 210
Registered: December 2007

Experienced Member

Still not work under Linux. To see the problems, I've attached a video with it in which you will see it working improper until slider(green) is full loaded, moment in which it work better, but showing green image under the control.
Good luck.

Andrei

Attachment: out.ogg.tar.gz
(Size: 348.40KB, Downloaded 379 times)

cdabbd745f1234c2751ee1f932d1dd75

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Re: DialSlider (curved slider ctrl) [message #15569 is a reply to message #15567]

Tue, 29 April 2008 12:42

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

Sorry. I meant to say that I haven't tried it on Linux yet.

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Re: DialSlider (curved slider ctrl) [message #15584 is a reply to message #15569]

Tue, 29 April 2008 18:46

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

I've fixed the Linux problem. In case you're interested the cause was this.
I've also optimized it to greatly reduce the number of pixels that need rotating and (I think) improved the marker/arrow.

This is absolutely the final version though, I wasn't intending to spend this much time fiddling with it Rolling Eyes