sdljava-users

[sdljava-users] guichan sdlinput - most key not handled

[David L. <sys...@ho...>]

Hi,

I've tried to use a guichan TextField but found that most of the key input 
aren't handled. The special cases like the arrows or the delete key work 
fine, but the common letters and numbers aren't recognized as input. The Key 
event generated by the keypressed has a keyvalue of 0.

I believe the problem is in the sdljavax.guichan.sdl.SDLInput 
convertKeyCharacter method. The first block seems to handle those numbers 
and letters but really doesn't.

private Key convertKeyCharacter(SDLKeyboardEvent keysym) {
int value = 0;

if (keysym.getUnicode() < 255) {
  value = keysym.getUnicode();
}

switch (keysym.getSym()) {
  case SDLKey.SDLK_TAB :
  value = Key.TAB;
  break;

  ...

}

...

}


I've added the following in the switch statement, and it fixes the problem:
case SDLKey.SDLK_a:
  value = (int)'a';
  break;
... for each letter and number


I'm not sure if that's the best solution. Perhaps someone might know why the 
getUnicode() method returns 0. I'm using Windows XP by the way, I don't know 
if it matters.

Anyhow, yay my first somewhat-contribution to an open source project!

Cheers,
David Lareau

Re: [sdljava-users] guichan sdlinput - most key not handled

[Ivan Z. G. <iva...@ya...>]

Hi David,

Welcome to open source ;-)

I think you have to actually enable unicode by calling
SDLEvent.enableUNICODE(1) -- I wonder if that fixes the problem?

The question remains if we should assume unicode or what the best thing
to do here is.  We can actually query if UNICODE is enabled so maybe do
something based on if it is or isn't set.

Rainer wrote the wonderfull guichan port.  Any thoughts what the best
thing to do here is Rainer?

-Ivan/

David Lareau wrote:

> Hi,
>
> I've tried to use a guichan TextField but found that most of the key
> input aren't handled. The special cases like the arrows or the delete
> key work fine, but the common letters and numbers aren't recognized as
> input. The Key event generated by the keypressed has a keyvalue of 0.
>
> I believe the problem is in the sdljavax.guichan.sdl.SDLInput
> convertKeyCharacter method. The first block seems to handle those
> numbers and letters but really doesn't.
>
> private Key convertKeyCharacter(SDLKeyboardEvent keysym) {
> int value = 0;
>
> if (keysym.getUnicode() < 255) {
>  value = keysym.getUnicode();
> }
>
> switch (keysym.getSym()) {
>  case SDLKey.SDLK_TAB :
>  value = Key.TAB;
>  break;
>
>  ...
>
> }
>
> ...
>
> }
>
>
> I've added the following in the switch statement, and it fixes the
> problem:
> case SDLKey.SDLK_a:
>  value = (int)'a';
>  break;
> ... for each letter and number
>
>
> I'm not sure if that's the best solution. Perhaps someone might know
> why the getUnicode() method returns 0. I'm using Windows XP by the
> way, I don't know if it matters.
>
> Anyhow, yay my first somewhat-contribution to an open source project!
>
> Cheers,
> David Lareau
>
>
>
>
> -------------------------------------------------------
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> from IBM. Find simple to follow Roadmaps, straightforward articles,
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/sdljava-users

Re: [sdljava-users] guichan sdlinput - most key not handled

[Rainer K. <ar...@gm...>]

Ivan Z. Ganza wrote:
> Hi David,
> 
> Welcome to open source ;-)
> 
> I think you have to actually enable unicode by calling
> SDLEvent.enableUNICODE(1) -- I wonder if that fixes the problem?
> 
> The question remains if we should assume unicode or what the best thing
> to do here is.  We can actually query if UNICODE is enabled so maybe do
> something based on if it is or isn't set.
> 
> Rainer wrote the wonderfull guichan port.  Any thoughts what the best
> thing to do here is Rainer?
> 
> -Ivan/

The demos call SDLEvent.enableUNICODE(1) explicitly, and the text input 
fields and areas are working there, so I assume that it is the right 
thing to do.  I didn't have much time to work on the game for which I 
ported guichan originally so I don't have too much experience with it 
either (ironically :)).

Rainer

> David Lareau wrote:
> 
> 
>>Hi,
>>
>>I've tried to use a guichan TextField but found that most of the key
>>input aren't handled. The special cases like the arrows or the delete
>>key work fine, but the common letters and numbers aren't recognized as
>>input. The Key event generated by the keypressed has a keyvalue of 0.
>>
>>I believe the problem is in the sdljavax.guichan.sdl.SDLInput
>>convertKeyCharacter method. The first block seems to handle those
>>numbers and letters but really doesn't.
>>
>>private Key convertKeyCharacter(SDLKeyboardEvent keysym) {
>>int value = 0;
>>
>>if (keysym.getUnicode() < 255) {
>> value = keysym.getUnicode();
>>}
>>
>>switch (keysym.getSym()) {
>> case SDLKey.SDLK_TAB :
>> value = Key.TAB;
>> break;
>>
>> ...
>>
>>}
>>
>>...
>>
>>}
>>
>>
>>I've added the following in the switch statement, and it fixes the
>>problem:
>>case SDLKey.SDLK_a:
>> value = (int)'a';
>> break;
>>... for each letter and number
>>
>>
>>I'm not sure if that's the best solution. Perhaps someone might know
>>why the getUnicode() method returns 0. I'm using Windows XP by the
>>way, I don't know if it matters.
>>
>>Anyhow, yay my first somewhat-contribution to an open source project!
>>
>>Cheers,
>>David Lareau
>>
>>
>>
>>
>>-------------------------------------------------------
>>SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
>>from IBM. Find simple to follow Roadmaps, straightforward articles,
>>informative Webcasts and more! Get everything you need to get up to
>>speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
>>_______________________________________________
>>sdljava-users mailing list
>>sdl...@li...
>>https://lists.sourceforge.net/lists/listinfo/sdljava-users
> 
> 
> 
> 
> 
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
> _______________________________________________
> sdljava-users mailing list
> sdl...@li...
> https://lists.sourceforge.net/lists/listinfo/sdljava-users
> 
> 

Re: [sdljava-users] guichan sdlinput - most key not handled

[David L. <sys...@ho...>]

I've turned on the unicode in SDLEvent and it's working fine. I noticed that 
though letters and number work, other characters such as + - ~ aren't 
handled. It's not a big issue since they aren't often used, but I'm 
wondering why wouldn't all characters be handled.

Thanks guys,
David Lareau