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From Greg Brown <gkbr...@mac.com>
Subject Re: Square PushButton
Date Fri, 07 Aug 2009 03:58:49 GMT
Did you sync with the latest from SVN? When I run your WTKX, all the  
buttons are the same size (though the text is clipped - an aspect  
ratio of 1.2 doesn't seem to be large enough).

One thought - it almost looks like you are trying to replicate tab  
pane behavior here. Might TabPane be an alternative? We do support  
vertical tabs. But maybe you want horizontal text and a vertical  
layout, which TabPane doesn't currently support. Maybe it should...  ;-)

On Aug 6, 2009, at 11:13 PM, Scott Lanham wrote:

> Attached is my wtkx file. For one button the aspect ratio worked  
> great, but for
> two and three buttons they get progressively smaller.
> On Fri, 7 Aug 2009 12:41:01 pm Greg Brown wrote:
>> For an example, see:
>> http://svn.apache.org/repos/asf/incubator/pivot/trunk/wtk/test/org/apache/p
>> ivot/wtk/test/preferred_aspect_ratio_test.wtkx
>> G
>> On Aug 6, 2009, at 10:36 PM, Greg Brown wrote:
>>> OK, TerraPushButtonSkin now properly respects the
>>> "preferredAspectRatio" style. If you set it to 1 (and the parent
>>> container respects the button's preferred size), you'll get a square
>>> button.
>>> However, you won't be able to simply rely on the box pane for
>>> calculating the correct preferred height for all of the buttons. The
>>> (unconstrained) preferred height of the box pane is still going to
>>> be determined as the sum of the unconstrained preferred heights of
>>> the buttons. Only when the width of the box pane is constrained can
>>> we determine the actual button heights (since they depend on the
>>> max. button width, which isn't known until layout - it is not, and
>>> cannot be, known at preferred size calculation time).
>>> So, you identified a valid issue - thank you! But in order to meet
>>> your use case, you'll need to ensure that the box pane is given
>>> enough vertical height to accommodate all the buttons - that height
>>> can't be determined automatically. Even a scroll pane or panorama
>>> can't help here - your box pane must simply be given enough vertical
>>> screen real estate to display all of the buttons.
>>> Hope this helps.
>>> G
>>> On Aug 6, 2009, at 9:47 PM, Greg Brown wrote:
>>>> I understand your use case. I think that a vertical box pane with
>>>> fill set to true would meet your needs, if we can get PushButton to
>>>> behave correctly with respect to preferred aspect ratio.  :-)  I'm
>>>> looking into it right now.
>>>> On Aug 6, 2009, at 9:42 PM, Scott Lanham wrote:
>>>>> Thanks Greg,
>>>>> What I originally expected aspect ratio to do is to increase the
>>>>> smallest of
>>>>> either height or width to keep the ratio constant. But my focus is
>>>>> only on my
>>>>> own needs so it is hard to see the big picture. It turns out a
>>>>> square button
>>>>> looks terrible when I did get it working and I ended up using an
>>>>> aspect ratio
>>>>> of 1.2. To get that ratio to work I had to set preferred height
>>>>> but I don't
>>>>> like setting explicit dimensions if it can be avoided though.
>>>>> What I am ultimately trying to do at the moment is create a
>>>>> vertical "toolbar"
>>>>> that keeps all buttons the same size. The size of the buttons are
>>>>> dictated by
>>>>> the button with the largest content and the aspect ratio is to
>>>>> keep all the
>>>>> buttons at a nice shape. One of the apps I work on is touch screen
>>>>> based so
>>>>> keeping the buttons large and a nice shape is important.
>>>>> On Fri, 7 Aug 2009 11:21:22 am Greg Brown wrote:
>>>>>> Preferred aspect ratio currently affects the height if it is less
>>>>>> than
>>>>>> 1, and the width if it is greater than or equal to 1. However, I
>>>>>> can
>>>>>> see why you might expect that setting it to a value of 1 would
>>>>>> produce
>>>>>> a square button. I'll look into that.
>>>>>> In the meantime, your best bet is to either a) use square content
>>>>>> (such as an icon whose width and height are equal) or b) manually
>>>>>> set
>>>>>> the preferred width and height to the same value.
>>>>>> G
>>>>>> On Aug 6, 2009, at 8:44 PM, Scott Lanham wrote:
>>>>>>> Hi,
>>>>>>> I would like to create a PushButton that stays square no matter
>>>>>>> what
>>>>>>> its
>>>>>>> button data contains. I have tried to set preferredAspectRatio
>>>>>>> to 1
>>>>>>> but it
>>>>>>> only appears to affect the button width. Is there any way I can
>>>>>>> keep
>>>>>>> a button
>>>>>>> square besides setting the preferred height and width to be the
>>>>>>> same?
>>>>>>> Thanks,
>>>>>>> Scott.
> <applicationUi.xml>

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