Re: [Denemo-devel] Wrong display on pasting into different clef

[Nils]

> OK. I have fixed display after cut and paste and clef insertion. 
Does that include the strange paste behaviour where you have to move the cursor 
through the mesaures to let it look right?


> Copying multiple staffs does not seem to work - should it be disabled?

Never worked since I know Denemo. But I think it would be a great thing. And 
selecting multiple staffs already works. 
Copy and Paste Multiple Staffs at once enables you to copy whole parts at once 
instead of each staff measure X to Y on its own.


Nils


> Richard
> 
> 
> 
> On Sun, 2009-09-27 at 08:44 +0100, Richard Shann wrote:
> > On Sat, 2009-09-26 at 10:23 +0100, Richard Shann wrote:
> > > When you paste a note from an area with one clef into an area with
> > > another the display is wrong. I have (at last) tracked down why.
> > In fact there is more stuff cached about where to draw stuff for the
> > chord: 
> > 
> >       * the field y of each note caches the y-position of the notehead,
> >       * the field highesty of a chord caches the field y of the highest
> >         pitched note (ditto lowest)
> >       * the field stemy of a chord holds the y-position of the end of
> >         any stem the chord might have
> >       * the field is_stemup of a chord caches which way the stem should
> >         go (which changes with change of clef)
> >       * the field is_reversealigned of a chord caches the head
> >         x-position (left/right) relative to the stem.
> > 
> > As with any caching system it is crucial to know when the caches are
> > invalidated: things like pasting chords, clef changes, stem directives
> > as well as changing the initial clef and of course ordinary note entry.
> > And it would be useful to have a clear way to re-build the caches - the
> > only secure method that I know of at the moment is to store the file to
> > disk and reload it!
> > At the moment I suspect one of the re-caching routines is wrong - if you
> > put an eighth note c'' into a newly opened Denemo score and change to
> > Bass clef and put in the note e the display shows the c'' with the stem
> > up (the tail and the notehead are correct).
> > So perhaps I should start with that bug.
> > Richard
> > 
> > 
> > > There are fields highesty and lowesty which cache the y-positions of the
> > > notes in a chord they are calculated thus:
> > > 
> > >   if (mid_c_offset > ((chord *) thechord->object)->highestpitch)
> > >     {
> > >       ((chord *) thechord->object)->highestpitch = mid_c_offset;
> > >       ((chord *) thechord->object)->highesty =
> > >   calculateheight (mid_c_offset, dclef);
> > >     }
> > > 
> > > this calculation however is not repeated on pasting chords, so the draw
> > > routines draw them in the wrong places.
> > > I'll look into fixing this
> > > 
> > > Richard
> > > 
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > Denemo-devel mailing list
> > > address@hidden
> > > http://lists.gnu.org/mailman/listinfo/denemo-devel
> > 
> > 
> > 
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> 
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-- 
Nils <address@hidden>