Re: [Hydrogen-devel] programming H2 ... sort of :-)

[<ma...@sm...>]

Hi Thijs,

most probably you have already figured it out, but anyway: Often there 
is an update() or updateFoo() function which can call to update all 
widgets of an editor. I can also have a look at your code if you have it 
somewhere in a git branch..

Best regards,

Sebastian



Am 29.01.2017 23:23, schrieb Thijs van severen:
> hi all
> 
> so i think i managed to set up everything to create and push an event,
> but i'm not quite there yet
> 
> in SongEditor.cpp i have added some lines that should draw a .png
> (using drawPixmap) based on the bNext flag
> I added some debug, did lots of tests and it looks like this part of
> the code is executed when i expect it to, but the gui does not update
> at that same moment  :-(
> i have the feeling that the actual gui update is done somewhere else,
> but i cant figure out how that happens
> 
> all help is welcome !
> 
> grtz
> Thijs
> 
> 2017-01-20 18:02 GMT+01:00 <ma...@sm...>:
> 
>> Hi Thijs!
>> 
>> Great to see that you're starting to play around with the code.
>> 
>> About your gui update problem: There is a event mechanism which
>> enables
>> the core of hydrogen to notify the user interface about any
>> changes.
>> Have a look at pull request 460
>> (https://github.com/hydrogen-music/hydrogen/pull/460 [3]),
>> it is an example of how to refresh a part of the user interface
>> after a midi event
>> has happened.
>> 
>> Best regards and happy hacking,
>> Sebastian
>> 
>> Am 20.01.2017 17:42, schrieb Thijs van severen:
>> 
>>> Hi guys !
>>> 
>>> i have just created a ticket for an enhancement that would really
>>> make
>>> my life a lot easier
>>> (see https://github.com/hydrogen-music/hydrogen/issues/471 [1]
>>> [1])
>>> 
>>> i'm actually trying to have a go at it, but i'm a bit stuck :-)
>>> 
>>> So far i have figured out that void
>>> SongEditor::createBackground() in
>>> SongEditor.cpp does the actual gui update, but it seems that it
>>> is
>>> only called when the pattern loops
>>> i have no clue how i can trigger this gui update when a
>>> select_next_pattern midi message is recieved
>>> 
>>> I have also found out that when you send a midi
>>> select_next_pattern
>>> message to H2 this triggers the
>>> MidiActionManager::select_next_pattern
>>> function in midi_actions.cpp
>>> if i could trigger the gui update from here i might be able to
>>> make
>>> this work
>>> 
>>> any ideas ?
>>> 
>>> grtz
>>> Thijs--
>>> 
>>> follow me on my Audio & Linux blog
>>> <http://audio-and-linux.blogspot.com/ [2] [2]> !
>>> 
>>> Links:
>>> ------
>>> [1] https://github.com/hydrogen-music/hydrogen/issues/471 [1]
>>> [2] http://audio-and-linux.blogspot.com/ [2]
> 
> --
> 
> follow me on my Audio & Linux blog
> <http://audio-and-linux.blogspot.com/ [2]> !
> 
> 
> 
> Links:
> ------
> [1] https://github.com/hydrogen-music/hydrogen/issues/471
> [2] http://audio-and-linux.blogspot.com/
> [3] https://github.com/hydrogen-music/hydrogen/pull/460