private void LView_OpenFileList_DragDrop(object sender, DragEventArgs e)
{
DebugManager.MessageOut("DragDrop");
var target_indices = (int[])e.Data.GetData(typeof(int[]));
var target_files = new List <FileControlParam>();
foreach (var target_index in target_indices)
{
if (LView_OpenFileList.Items[target_index].Tag is FileControlParam file)
{
target_files.Add(file);
}
}
var insert_index = GetOpenFileInsertIndex(LView_OpenFileList.PointToClient(new Point(e.X, e.Y)));
files_.InsertRange(insert_index, target_files);
foreach (var remove_index in target_indices.Reverse())
{
if (remove_index > insert_index)
{
files_.RemoveAt(remove_index + target_files.Count);
}
}
LView_OpenFileList.InsertionMark.Index = -1;
}
private void LView_OpenFileList_DragOver(object sender, DragEventArgs e)
{
DebugManager.MessageOut("DragOver");
// e.Effect = DragDropEffects.Move;
var insert_index = GetOpenFileInsertIndex(LView_OpenFileList.PointToClient(new Point(e.X, e.Y)));
if (insert_index >= LView_OpenFileList.Items.Count)
{
LView_OpenFileList.InsertionMark.AppearsAfterItem = true;
insert_index = Math.Max(insert_index - 1, 0);
}
else
{
LView_OpenFileList.InsertionMark.AppearsAfterItem = false;
}
LView_OpenFileList.InsertionMark.Index = insert_index;
}
