More hit-test notifications

[WindowsNT]

GuidoGetMap returns rects for many elements.

It would be nice if:

• Key placement was returned
• Dynamics placement was returned
• Text placement was returned
• Lyrics placement was returned
• Articulation placement was returned

Best.

[dfober]

I'm afraid I won't have time to extend the mapping for a while.
If you'd like to try your hand at it, I can show you how. It's not necessarily difficult, but it does take a bit of time.
The mapping is based on the elements bounding boxes and one of the problems that can occur is that the bounding boxes are not exact (when the elements are adjusted manually e.g. dx, dy, size...). That's what can take time.

[WindowsNT]

Yes, tell me how.
Happy new Year also.

[dfober]

Happy new year too !

Here are some indications:
all graphic objects (GR) have a mMapping field, computed from the bounding box (mBoundingBox) that stores mapping information (which may be slightly different from the bounding box)
see GObject.h

to extend the mapping:

• extend GuidoElementSelector and GuidoElementType with you target types (GuidoScoreMap.h)
• make sure that the mMapping field is set by the target object type
  mMapping is computed by GR objects, generally by the updateBoundingBox method, but for a set of objects it is set by the setHPosition method (objects that don't implement updateBoundingBox)
• the target object must override the GetMap method (defined in GObject)

That's basically the way the extend the mapping (not sure that I didn't forget a point)
Keep me informed and I'll be happy with a PR at the end.

[WindowsNT]

I'm trying to extend the mapping.
What would help is a custom parameter passed e.g. \key<...,param="map"> that would then be passed back to the mapping - this way I can find the referred element faster.

Give me some clues on how to do that.

Also, it seems that the mapper only works for time-elements. For example (in my PR) the text is now mapped, but only for texts related to a note, not the title or the composer.

[dfober]

What would help is a custom parameter passed e.g. \key<...,param="map"> that would then be passed back to the mapping - this way I can find the referred element faster.

Not so easy to do because tags are handled on AR side and maps on GR side. What's the idea with the param="map" parameter?

Also, it seems that the mapper only works for time-elements. For example (in my PR) the text is now mapped, but only for texts related to a note, not the title or the composer.

yes, because the mapping is a relation between the graphic and the time space, thus elements that have no time dimension are excluded from the mapping.

[WindowsNT]

The idea is to have parameters mapped depending on what the client wants, so no matter if there are timed or not, the client can find where they are drawn.

If i have a note with a feature like param="5436573763", a unique number, I can find it later from my callback with or without a time mapping.