rectangle of 0,0,0,0 ok?

[Doug Lerner]

OK. I'll try that!

Thanks,

doug

On 1/19/04 9:25 AM, "Scott Rossi" <scott at tactilemedia.com> wrote:

> On 1/18/04 3:49 PM, "Doug Lerner" <doug at webcrossing.com> wrote:
> 
>>>> Those don't truly *hide* the field, in the sense that if you check to see
>>>> if
>>>> the mouse is in the region of the field it still turns out to be true, even
>>>> if the field is not visible.
>>> 
>>> How are you testing the mouse?  When I use the following script and the
>>> field is hidden, the result is consistently false:
>>> 
>>> put within(fld myField,the mouseLoc)
>> 
>> if exists(field "canvas") and the mouseLoc is within the rectangle of field
>> "canvas" then
>> 
>> This shows true whether or not the field is hidden.
> 
> That's because you're testing the rect of the field, which is a position on
> the card, as opposed to testing if the mouse is within the field object
> itself. Try testing the field itself as explained above.
> 
> You can also gain speed improvements by testing variables instead of testing
> physical objects.  For example, you can use properties to store the presence
> of the canvas field and its rect from other scripts, and then test the
> properties, instead of testing the actual objects.  Something like:
> 
> on mouseDown
>  -- TEST THE SITUATION ONCE
>  if exists(fld "canvas") and the visible of fld "canvas" then
>     set the uCanvasRect of this cd to the rect of fld "canvas"
>     set the uCanvasReady of this cd to true
>  end if
> end mouseDown
> 
> on mouseMove X,Y
>  -- EXIT IF THE SITUATION IS NOT APPROPRIATE
>  if not the uCanvasReady of this cd then exit mouseMove
>  if (X&","&Y) is  within the uCanvasRect of this cd then
>     -- do my stuff
>  else
>     -- do other stuff
>  end if
> end mouseMove
> 
> on mouseUp
>  hide fld "canvas"
>  set the uCanvasReady of this cd to false
> end mouseUp
> 
> 
> The above may not be completely appropriate to your situation but may give
> you an idea of where to start.
> 
> Regards,
> 
> Scott Rossi
> Creative Director
> Tactile Media, Development & Design
> -----
> E: scott at tactilemedia.com
> W: http://www.tactilemedia.com
> 
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