Reply Embeded...
On Jan 23, 2008 3:00 AM, Sergio Ordoño Marín <[EMAIL PROTECTED]> wrote:
> Hi everyone!
>
> I got some questions related with the canvas class. I hope someone can
> help.
>
> I'm making an app for my sony ericsson so I'm using pictures of 128x160
> pixels... but... I wonder if any function or procedure exist that allows
> you
> to resize images to fit the screen so that way I may be able to use the
> app
> in others cells with bigger or tinier screens resolutions.
Well for MIDP 2.0/2.1 there is no scaling of images. (It may be coming in
MIDP 3.0). You can do it with some tricks in 3D, but still not many hndsets
will support 3D. Instead you can get better Image quality and file size if
you target individual canvas size.
>
>
> More things... can you load animated gif file?. If so, how can you make
> them
> not cycle and show the animation only one time?.
I have not tried animated gif. But what we use is image sequence. Please
check out Sprite class for more information.
>
>
> last is a simple one... what happen if you put one imagen on top of
> another... which one shows?, if the one on top is tinier than the other,
> do
> you see the big one behind it?
Rendering is done in a way you call. So you draw a big image, it will be
shown. Then you draw another image, it will be drawn on top of previous one.
And yes, the parts of old image not blocked by new one will still remain
there.
> Is there some way of making some colors
> transparent (I guess, maybe with png files)?.
Yes, PNG supports transparency, as well as alpha channel. 8-bit PNG as
indexed colored with one of the color set as transparent. PNG 24 can have an
alpha chennel (semi-transparency) too.
Thank you very much!
---
Ashish Patil
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