private void PlaylistView_DragOver(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(typeof(List <ListViewItem>)))
{
e.Effect = DragDropEffects.Move;
}
int N = PlaylistView.Items.Count;
if (N == 0)
{
DropIndex = 0;
Application.DoEvents();
return;
}
Point mLoc = PlaylistView.PointToClient(Cursor.Position);
Rectangle r0 = PlaylistView.Items[0].Bounds;
Rectangle r1 = PlaylistView.Items[N - 1].Bounds;
var hitt = PlaylistView.HitTest(mLoc);
if (hitt.Item == null)
{
if (mLoc.Y < r0.Y)
{
PlaylistView.InsertionMark.AppearsAfterItem = false;
PlaylistView.InsertionMark.Index = 0;
DropIndex = 0;
}
else if (mLoc.Y > r1.Y)
{
PlaylistView.InsertionMark.AppearsAfterItem = true;
PlaylistView.InsertionMark.Index = N - 1;
DropIndex = N;
}
}
else
{
int idx = hitt.Item.Index;
PlaylistView.InsertionMark.Index = idx;
if (mLoc.Y < r0.Y)
{
PlaylistView.InsertionMark.AppearsAfterItem = false;
DropIndex = 0;
}
else
{
PlaylistView.InsertionMark.AppearsAfterItem = true;
DropIndex = idx + 1;
}
if (idx == prevItem)
{
return;
}
}
Application.DoEvents();
}
private void BmpMidiEntryList_MouseDown(object sender, MouseEventArgs e)
{
rowIndex = PlaylistView.HitTest(e.X, e.Y).RowIndex;
if (rowIndex != -1)
{
Size dragSize = SystemInformation.DragSize;
dragBox = new Rectangle(new Point(e.X - (dragSize.Width / 2), e.Y - (dragSize.Height / 2)), dragSize);
}
else
{
dragBox = Rectangle.Empty;
}
}
private void BmpMidiEntryList_DragDrop(object sender, DragEventArgs e)
{
Point clientPoint = this.PointToClient(new Point(e.X, e.Y));
DataGridView.HitTestInfo hit = PlaylistView.HitTest(clientPoint.X, clientPoint.Y);
// for internal drag-and-drop
if (actuallyMoving)
{
int targetRowIndex = hit.RowIndex - 1;
if (hit.Type == DataGridViewHitTestType.None)
{
// user has dnd onto empty space, simply move midi to the end of the playlist
targetRowIndex = PlaylistView.RowCount - 1;
}
BmpMidiEntry oldData = PlaylistView.Rows[initialRowIndexForMovement].DataBoundItem as BmpMidiEntry;
RemovePlaylistEntry(initialRowIndexForMovement);
AddPlaylistEntry(oldData.FilePath.FilePath, oldData.Track.Track, targetRowIndex);
actuallyMoving = false;
return;
}
int dropIndex = 0;
if (hit.Type == DataGridViewHitTestType.Cell)
{
// user has dnd onto an existing cell, move above the hovered midi
dropIndex = hit.RowIndex - 1;
}
else if (hit.Type == DataGridViewHitTestType.None)
{
// user has dnd onto empty space, simply add midi to the end of the playlist
dropIndex = playlistEntries.Count;
}
if (e.Effect == DragDropEffects.Move)
{
// just in case the user gets fancy with it and dnd's multiple midis
string[] midiList = (string[])e.Data.GetData(DataFormats.FileDrop, false);
foreach (string midiFilePath in midiList)
{
string filename = Path.GetFileName(midiFilePath);
BmpPlaylistRequestAddEvent addEvent = new BmpPlaylistRequestAddEvent(filename, 0, dropIndex);
OnPlaylistManualRequestAdd?.Invoke(this, addEvent);
}
}
}
private void BmpMidiEntryList_DragDrop(object sender, DragEventArgs e)
{
Point clientPoint = this.PointToClient(new Point(e.X, e.Y));
dropIndex = PlaylistView.HitTest(clientPoint.X, clientPoint.Y).RowIndex;
if (dropIndex >= playlistEntries.Count || dropIndex == -1)
{
dropIndex = playlistEntries.Count - 1;
}
if (e.Effect == DragDropEffects.Move)
{
//DataGridViewRow data = e.Data.GetData(typeof(DataGridViewRow)) as DataGridViewRow;
var data = e.Data.GetData(typeof(BmpMidiEntry)) as BmpMidiEntry;
playlistEntries.RemoveAt(rowIndex);
playlistEntries.Insert(dropIndex, new BmpMidiEntry(data.FilePath.FilePath, data.Track.Track));
Select(dropIndex);
}
playlistBinding = new BindingList <BmpMidiEntry>(playlistEntries);
PlaylistView.DataSource = playlistBinding;
this.SaveSettings();
}