private void EditNoteModeHoldFlick(ScoreEditorHitTestResult hit, MouseEventArgs e)
{
var editor = _visualizer.Editor;
Note lastNote = null;
if (editor.HasOneSelectedNote)
{
lastNote = editor.GetSelectedNote();
}
else if (hit.HitAnyNote && editor.HasSelectedNotes)
{
Debug.Print("You can only select one note to create a hold pair.");
return;
}
Note thisNote = null;
var isNoteAdded = false;
if (hit.HitAnyNote)
{
// The clicked note is always selected.
thisNote = hit.Note == _lastMouseDownNote ? hit.Note : null;
}
else if (hit.HitBarGridIntersection)
{
// If not selected, add a note and select it.
thisNote = EditorAddNote(hit);
isNoteAdded = true;
}
// If the user clicked on nothing, then clear all selections.
if (thisNote == null)
{
ClearNoteAndBarSelection();
editor.Invalidate();
return;
}
// If the user clicked on the same note, just perform the standard note selection.
if (lastNote == null || lastNote == thisNote)
{
thisNote.EditorToggleSelected();
editor.Invalidate();
return;
}
var relationCreated = false;
if (thisNote.Basic.FinishPosition == lastNote.Basic.FinishPosition)
{
do
{
// If the selected note is already a hold note (start/end) and there is a hold relation between the
// two notes, then switch selection.
if (NoteHelper.AreNotesInHoldChain(thisNote, lastNote))
{
// Yep just switch selection. Do nothing in this branch.
}
else
{
var errStr = EnsureHoldValid(thisNote, lastNote);
if (errStr != null)
{
if (isNoteAdded)
{
thisNote.Basic.Bar.RemoveNote(thisNote);
}
Debug.Print(errStr);
break;
}
// Make hold.
var(first, second) = NoteHelper.Split(thisNote, lastNote);
NoteHelper.MakeHold(first, second);
_visualizer.InformProjectModified();
relationCreated = true;
}
} while (false);
}
else
{
do
{
// If the selected note is already a flick note and there is a flick relation between the
// two notes, then switch selection.
if (NoteHelper.AreNotesInFlickChain(thisNote, lastNote))
{
// Yep just switch selection. Do nothing in this branch.
}
else
{
var errStr = EnsureFlickValid(thisNote, lastNote);
if (errStr != null)
{
if (isNoteAdded)
{
thisNote.Basic.Bar.RemoveNote(thisNote);
}
Debug.Print(errStr);
break;
}
// Make flick.
var(first, second) = NoteHelper.Split(thisNote, lastNote);
NoteHelper.MakeFlick(first, second);
_visualizer.InformProjectModified();
relationCreated = true;
}
} while (false);
}
// Now handle a special case: link flick after a slide.
if (!relationCreated)
{
var(first, second) = NoteHelper.Split(thisNote, lastNote);
if (first.Basic.FinishPosition != second.Basic.FinishPosition)
{
if (first.Helper.IsSlideEnd && second.Helper.IsFlickStart)
{
NoteHelper.MakeSlideToFlick(first, second);
_visualizer.InformProjectModified();
relationCreated = true;
}
}
}
if (relationCreated)
{
thisNote.EditorUnselect();
lastNote.EditorUnselect();
}
else
{
lastNote.EditorUnselect();
thisNote.EditorSelect();
}
// Did we created a hold pair?
// If so, ensure the pair's start position being the same.
if (relationCreated)
{
if (thisNote.Helper.IsHoldStart)
{
thisNote.Editor.HoldPair.Basic.StartPosition = thisNote.Basic.StartPosition;
}
else if (thisNote.Helper.IsHoldEnd)
{
thisNote.Basic.StartPosition = thisNote.Editor.HoldPair.Basic.StartPosition;
}
}
editor.Invalidate();
}