when handling paste, a switch statement is used on dropElement.type() (result is of type ElementType). Before this commit, there was no case for ElementType::STICKING, and paste wouldn't work (default behavior).
Resolves: https://musescore.org/en/node/294866.
When a ChordRest is removed from its beam during layout, we need to relayout its old beam. This will cause a recalculation of the stem direction, in case it needs to change.
In the original implementation of accessibility,
we had the screenreader always read all extra information associated with a chord
(including articulations, lyrics, staff text, etc)
every time a note in that chord was selected.
This was necessary becayse we had no no way at the time to reach those elements individually.
Now that the next/previous element commands can access those elements directly,
we no longer need to read them on selection of the note.
And yet, reading this information on ordinary navigation (left/right) is not without value.
So this change simply limits the reading of the extra info to the top note of a chord,
and even then also checks voices for segment annotations.
The result is, when navigating, you'll hear the extra information read
when the chord is first hit, because we navigate chords top to bottom,
ut will not hear the extra information repeated for each subsequent note in the chord.
Beat information continues to be read always.
for some strange reason `QList::size()` returns `int` rather than
`size_t`, IMHO a bug in Qt, as even a `QList` can't have a negative
number of members.
And fix another warning reg. shadowing a local variable as well as reg.
some unused parameters
Articulations needed to be added to Chord::accessibleExtraInfo.
Also, refactoring was needed to move code around as a result of
articulations and fermatas being moved between Chord and ChordRest.
- tick names a position on the time axis
- tick is always a Fraction()
- only Measure() and Segment() (and Tuplet?) have a tick value
- tick() for an generic element return only a sensible value if isMeasure() or isSegment() or isSegment(parent())
- "ticks" names a duration stored in a Fraction()
- the tick value for an Segment is relative to its measure
- rename "duration" to "ticks"
- rename afrac() to tick()
- rename rfrac() to rtick()
- rename some variables, changing "fraction" into "tick"
(example: actualFraction() into actualTicks())
- Lyrics ticks are written as Fraction, on read if xmlreader sees a "/" it reads a fraction
else midi ticks for backwards compatibility
