[Laszlo-user] syntax problem using variables in a view's x and y

William Krick wkrick at eio-online.com
Thu Apr 6 10:33:55 EDT 2006


I was wondering if anyone had any thoughts on "x" vs "absolutex"...



-----Original Message-----
From: William Krick [mailto:wkrick at eio-online.com]
Sent: Thursday, February 09, 2006 3:05 PM
To: laszlo-user at openlaszlo.org
Subject: RE: [Laszlo-user] syntax problem using variables in a view's x
and y


Ok, that makes sense now.

It *is* a little strange though in that it isn't symmetrical...

When I query a view for its x or y, it gives me its position relative to the canvas, but when I set a view's x or y, I'm setting the its position relative to its parent.

I think it would make more sense if there were two types of x positions..

view.x  and  view.absolutex

view.x is always the x relative to the view's parent.

view.absolutex is always the x relative to the canvas.

Obviously, this all applies to y as well.





-----Original Message-----
From: Dan Stowell [mailto:dstowell at laszlosystems.com]
Sent: Thursday, February 09, 2006 2:47 PM
To: William Krick; laszlo-user at openlaszlo.org
Subject: RE: [Laszlo-user] syntax problem using variables in a view's x
and y


> But shouldn't it still work with parent.x+5 anyway?

Not quite. parent.x refers to the parent's x position relative to the 
canvas. In your example, the first red view has an x of 0 in the canvas. 
The interior view is constrained to have an x of parent.x + 5, which 
works out to 5 in this case. The second red view has an x of 100 
relative to the canvas. The interior view therefore has an x of 105. 
Since it is being place 105 pixels from the left of the second red view, 
the views are not working as desired. Here's a modified version:

<canvas width="600" height="400">

     <simplelayout axis="x"/>

     <view name="first"
           bgcolor="red" width="100" height="100">
         <view bgcolor="black"
               width="${ parent.width - 10 }" height="${ parent.height - 
10 }"
               x="5" y="5"/>
     </view>

     <view name="second"
           bgcolor="red" width="100" height="100">
         <view bgcolor="black"
               width="${ parent.width - 10 }" height="${ parent.height - 
10 }"
               x="5" y="5"/>
     </view>

</canvas>

>> <canvas width="600" height="400">
>>   <simplelayout axis="x"/>
>>
>>   <view bgcolor="red" width="100" height="100">
>>     <view bgcolor="black"
>>           width="${parent.width-10}"
>>           height="${parent.height-10}"
>>           x="${parent.x+5}"
>>           y="${parent.y+5}"/>
>>   </view>
>>
>>   <view bgcolor="red" width="100" height="100">
>>     <view bgcolor="black"
>>           width="${parent.width-10}"
>>           height="${parent.height-10}"
>>           x="${parent.x+5}"
>>           y="${parent.y+5}"/>
>>   </view>
>>
>> </canvas>
>> _______________________________________________
>> Laszlo-user mailing list
>> Laszlo-user at openlaszlo.org
>> http://www.openlaszlo.org/mailman/listinfo/laszlo-user
>
>
> Dan Stowell
> Software Engineer
> Laszlo Studios
>
>
>


Dan Stowell
Software Engineer
Laszlo Studios




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