public override void MouseMove(int x, int y)
{
// keep adding or removing if we're dragging
if (Handler.Action == ClipMouseAction.MultiSelect)
{
var foundNote = Handler.Renderer.GetNoteAt(x, y);
if (foundNote != null && isRemoving)
{
Handler.Renderer.Clip.Notes.Remove(foundNote);
Handler.Renderer.Render();
}
else if (foundNote == null && isRemoving == false)
{
var note = new SequencerClip.Note();
note.Length = 24;
note.Tick = MidiMath.Quantize(Handler.Renderer.GetTickAt(x), note.Length);
note.Pitch = Handler.Renderer.GetNoteAt(y);
note.Velocity = 100;
Handler.Renderer.Clip.Notes.Add(note);
Handler.Renderer.Clip.Sort();
Handler.Renderer.Render();
}
}
}
public override void MouseDown(int x, int y, Keys modifierKeys)
{
// action is always multiselect, to indicate we're going to
// keep adding or removing as we go to new places
Handler.Action = ClipMouseAction.MultiSelect;
// delete a note if an existing on is clicked on
var foundNote = Handler.Renderer.GetNoteAt(x, y);
if (foundNote != null)
{
isRemoving = true;
Handler.Renderer.Clip.Notes.Remove(foundNote);
}
else
{
isRemoving = false;
// add a note if clicking outside of a note
var note = new SequencerClip.Note();
note.Length = 24;
note.Tick = MidiMath.Quantize(Handler.Renderer.GetTickAt(x), note.Length);
note.Pitch = Handler.Renderer.GetNoteAt(y);
note.Velocity = 100;
Handler.Renderer.Clip.Notes.Add(note);
Handler.Renderer.Clip.Sort();
}
Handler.Renderer.Render();
}
/// <summary>
/// Returns how far through a note the given coord is as a
/// percentage. Useful to detect if we've grabed the start
/// or the end of a note.
/// </summary>
public float GetPercentageThroughNoteAt(SequencerClip.Note note, int x)
{
if (note == null)
{
return(0);
}
var startX = GetTickX(note.Tick);
var endX = GetTickX(note.Tick + note.Length);
if (startX == endX)
{
return(0);
}
if (x < startX)
{
return(0);
}
if (x > endX)
{
return(1);
}
return((x - startX) / (endX - startX));
}
public override void MouseDown(int x, int y, Keys modifierKeys)
{
// default action is none
Handler.Action = ClipMouseAction.None;
// save original mouse position
Handler.MousePosition.SetStart(x, y);
Handler.MousePosition.Set(x, y);
// create a new note with control click.
if (modifierKeys == Keys.Control)
{
var note = new SequencerClip.Note();
note.Length = 24;
note.Tick = MidiMath.Quantize(Handler.Renderer.GetTickAt(x), note.Length);
note.Pitch = Handler.Renderer.GetNoteAt(y);
note.Velocity = 100;
Handler.Renderer.Clip.Notes.Add(note);
Handler.Renderer.Clip.Sort();
Handler.Renderer.Render();
Handler.Renderer.SelectedNote = note;
Handler.Renderer.SelectedNotes = null;
Handler.Action = ClipMouseAction.Resize;
}
// select a single note if we click on a note
else
{
// find the single note we clicked on
Handler.Renderer.SelectedNote = Handler.Renderer.GetNoteAt(x, y);
if (Handler.Renderer.SelectedNote == null)
{
Handler.Renderer.SelectedNotes = null;
}
// if that note was part of an already selected group
// then we need to move the entire group
if (Handler.Renderer.SelectedNotes != null && Handler.Renderer.SelectedNotes.Contains(Handler.Renderer.SelectedNote))
{
Handler.Action = ClipMouseAction.MovingGroup;
}
else if (Handler.Renderer.SelectedNote != null)
{
// unselect group if not part of previous selected group
Handler.Renderer.SelectedNotes = null;
// decide action based on if we're at the start
// or the end of a note
var p = Handler.Renderer.GetPercentageThroughNoteAt(Handler.Renderer.SelectedNote, x);
if (p < 0.5f)
{
Handler.Action = ClipMouseAction.MovingSingle;
}
else
{
Handler.Action = ClipMouseAction.Resize;
}
}
else
{
// multi select if we didn't click on anythin
Handler.Action = ClipMouseAction.MultiSelect;
Handler.Renderer.SelectBox.X = x;
Handler.Renderer.SelectBox.Y = y;
Handler.Renderer.SelectBox.Width = 1;
Handler.Renderer.SelectBox.Height = 1;
Handler.Renderer.ShowSelectBox = true;
}
}
// save original values of selected notes
if (Handler.Renderer.SelectedNotes != null)
{
Handler.UpdateOriginal(Handler.Renderer.SelectedNotes.ToArray());
}
else
{
Handler.UpdateOriginal(Handler.Renderer.SelectedNote);
}
// draw
Handler.Renderer.Render();
}
