Re: [Denemo-devel] Playback View: an important advance for Denemo

[Richard Shann]

> Tried 
> http://denemo.org/~jjbenham/gub/uploads/denemo-0.0.0-0.darwin-x86.tar.bz2 on 
> the Mac, see attachment.  
> Nothing showing in the Playback window, but the Play and Stop commands
> work.  
> The Movement command doesnt seem to do anything
> The Part command bring up a window saying "Already Typesetting Abandon
> this typeset?

Thanks - this is the same as the windows build then; it is all just one
bug: the score is being drawn in white on a white background. The
Movement button re-typesets the movement (all parts) for playback while
the Part button just typesets the part the cursor is in. If you hit
either while it is already at work you will get that message.

Actually, you didn't report on the presence or absence of scroll bars -
they should appear if you make the Playback View small enough...

Quite surprising that it fails the same way as Windows because the Mac
build is Gtk2 rather than Gtk3 as I understand it.

Richard


> Jil
> 
> 
> 
> On Thu, Dec 10, 2015 at 12:02 PM, Richard Shann
> <address@hidden> wrote:
>         I have created a Playback View window in Denemo. It shows the
>         music
>         typeset by LilyPond with the currently playing notes
>         highlighted.
>         Starting the playback from a certain note is just a matter of
>         clicking
>         on the note, playing a range is achieved by dragging from the
>         desired
>         start note to the desired end note. Looping over a range is
>         achieved by
>         shift-dragging.
>         
>         This has the advantage over the current playback regime (which
>         is still
>         working simultaneously) that you are looking at the music
>         properly
>         typeset (in the correct key if you have transposed on print)
>         and there
>         are no pages to turn (the typesetting is done on one long
>         page).
>         
>         The current visualization in the Denemo Display will continue
>         to be
>         preferred in the case of a playback that is just a quick check
>         for the
>         correct notes as you do not have to wait for LilyPond to
>         typeset the
>         Playback View to do that.
>         
>         There are some caveats: tempo changes that don't have an
>         explicit beats
>         per minute are not detected by the Playback View. The text
>         fonts in the
>         playback view are ugly ones. You have to scroll the view if it
>         runs off
>         the bottom of your screen - and at the moment a one metre page
>         length is
>         scripted in.
>         
>         The windows version does not work - I'll email separately
>         about that. If
>         someone could check
>         
> http://denemo.org/~jjbenham/gub/uploads/denemo-0.0.0-0.darwin-x86.tar.bz2
>         
>         on an Apple Mac and report back that would be great. Just
>         create a
>         simple score with a few notes and select Playback->Playback
>         View.
>         
>         A big thank you is due to Mathieu Demange whose code is
>         re-used to get
>         this working. A demo of his project can be seen at
>         
>         http://www.mathieudemange.fr/lilypond-html-live-score-demo/
>         
>         (On my browser the highlighting is not very marked and the
>         page needed
>         reloading between plays last time I tried).
>         
>         Feedback most welcome! I plan to add auto scrolling (e.g.
>         drifting
>         upwards) of one sort or another and to substitute LilyPond's
>         MIDI
>         rendering for the crude MIDI we use at present.
>         
>         Richard
>         
>         
> 
>