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Add support for zooming to show all notes, separate from max zoom

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This is now the behavior of Zoom Reset, with Max Zoom being given the previous behavior.  Shift+Right-Click alternates between the two -- it zooms to all notes, unless it currently is zoomed to all notes in which case it performs a max zoom.

This fixes Bug 2093.  It also fixes Bug 1815, by performing the all-notes zoom when importing a track.
This commit is contained in:
Pokechu22
2018-01-14 12:08:54 -08:00
committed by James Crook
parent 567b3972b8
commit 99f4c35e18
4 changed files with 53 additions and 25 deletions
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23
src/import/ImportMIDI.cpp
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@@ -69,27 +69,8 @@ bool ImportMIDI(const FilePath &fName, NoteTrack * dest)
wxString trackNameBase = fName.AfterLast(wxFILE_SEP_PATH).BeforeLast('.');
dest->SetName(trackNameBase);
mf.Close();
// the mean pitch should be somewhere in the middle of the display
Alg_iterator iterator( &dest->GetSeq(), false );
iterator.begin();
// for every event
Alg_event_ptr evt;
int note_count = 0;
int pitch_sum = 0;
while (NULL != (evt = iterator.next())) {
// if the event is a note
if (evt->get_type() == 'n') {
Alg_note_ptr note = (Alg_note_ptr) evt;
pitch_sum += (int) note->pitch;
note_count++;
}
}
int mean_pitch = (note_count > 0 ? pitch_sum / note_count : 60);
// initial track is about 27 half-steps high; if bottom note is C,
// then middle pitch class is D. Round mean_pitch to the nearest D:
int mid_pitch = ((mean_pitch - 2 + 6) / 12) * 12 + 2;
dest->SetBottomNote(mid_pitch - 14);
dest->SetTopNote(mid_pitch + 13);
dest->ZoomAllNotes();
return true;
}