Oh, well read the manual: Shoes thinks of percentages in decimals from 0.0 to 1.0 (0% to 100%). 50% = 0.5 in Shoes.
On Fri, May 22, 2009 at 10:10 AM, Satoshi Asakawa <[email protected]> wrote: > Hi _why, > > Thank you for the explanation. > I understood to need `start` block! > > But still a bit confusing for the following behavior. :( > > Shoes.app do > o = oval :top => "50%", :left => "50%" > start do > para "oval is at (#{o.top}, #{o.left})" > end > end > > Run the above snippet, it didn't work and I got the error > on Shoes console window: > > Error in C:/Program Files/Common Files/Shoes/0.r1134/lib/shoes.rb line 394 : > can't convert String into Integer > > Then replaced "50%" to 0.5. > It works but displayed `oval is at(0, 0)`. > > Then again replaced "50%" to 100. > It works and displayed `oval is at(100, 100)`. > > Umm... I'm using Windows XP and Shoes 2 (0.r1134). > > Regards, > ashbb > > > On Sat, May 23, 2009 at 12:50 AM, _why <[email protected]> wrote: >> >> On Fri, May 22, 2009 at 12:04:35PM +0000, Ehsanul Hoque wrote: >> > Ahh, well I did expect it to work like that, hmmm... It still >> > could be justified I suppose, it's really upto _why whether >> > it's a bug, or just a "feature", just how it works. >> >> Until the image is drawn, you can't really know `top` and `left`. >> >> For instance, let's say you're using percentages: >> >> Shoes.app do >> o = oval :top => "50%", :left => "50%", :radius => 20 >> para "Oval is at (#{oval.top}, #{oval.left})" >> end >> >> Until we compute the window size, the coordinates can't be shown. >> So, what you do is get the coordinates in the `start` block: >> >> Shoes.app do >> o = oval :top => "50%", :left => "50%", :radius => 20 >> start do >> para "Oval is at (#{oval.top}, #{oval.left})" >> end >> end >> >> Because the start block runs after the first paint. >> >> It still feels like a bug, but I'm not sure if I want to recompute >> every slot each time a new element is added. I will probably have >> `top` and `left` and `width` and so on return exceptions if you >> try to use them before the window is painted... I don't know. >> >> _why > > -- ~devyn
