Re: [Jsynthlib-devel] Complex sysex parameters

[federico <xa...@in...>]

Jeff Weber wrote:

>--- federico <xa...@in...> wrote:
>  
>
>>how can i make 4 different widgets that manipulate
>>the same param_number?
>>    
>>
>
>You can subclass a ParamModel and then make all four
>widgets use the subclassed ParamModel.
>
>Check out the AlesisDM5.BitModel. This is a ParamModel
>subclass that manipulates the individual bits of a
>single sysex byte. There is one additional parameter
>on the constructor, which is a bitmask. There are a
>bunch of public static final int definitions at the
>beginning. These are masks provided for the DM5. You
>specify one of these masks when you create the
>BitModel on your widget. You can copy this code and
>modify the masks for your own purposes. 
>
>  
>
>>please consider that if go to change octave range, i
>>should mask other 
>>bits, like this:
>> new_val = (old_val & 0x28) | (oct_range & 0x03)
>>to avoid re-setting to zero saw/pulse/chorus
>>    
>>
>
>This might be a little more complicated to answer. You
>could just use the BitModel subclass with a mask of
>00000111 and then have your widget pass values of 1,
>2, or 4. The easy way would be to use a
>ScrollBarLookupWidget or a KnobLookupWidget but that
>would limit you to those types of widgets. If you
>wanted to use a ComboBoxWidget (which I'm guessing
>would be a more appropriate choice), then you would
>have to further subclass BitModel to change the value
>0 to 1, 1 to 2, and 2 to 4.
>  
>
thanks a lot!
i am going to finish the editor...
maybe in two ours will be on the list

bye!

-- 
Federico