void Feeder_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
return;
}
if (_isDragging)
{
this.Capture = true;
this.Location = new Point(this.Location.X + e.X - _mouseLocationOnButton.X, this.Location.Y + e.Y - _mouseLocationOnButton.Y);
if (PanelArranged.Contains(this))
{
Point location = PanelUnArranged.PointToClient(Cursor.Position);
if (PanelUnArranged.ClientRectangle.Contains(location))
{
location = MoveOnPanelUnArranged(location);
}
}
else
{
Point location = PanelArranged.PointToClient(Cursor.Position);
if (PanelArranged.ClientRectangle.Contains(location))
{
location = MoveOnPanelArranged(location);
}
}
}
}
private Point MoveOnPanelArranged(Point location)
{
location = PanelArranged.PointToClient(Cursor.Position);
location = new Point(location.X - _mouseLocationOnButton.X, location.Y - _mouseLocationOnButton.Y + PanelArranged.Height);
PanelUnArranged.Controls.Remove(this);
this.Location = location;
PanelArranged.Controls.Add(this);
this.Capture = true;
this.BringToFront();
this.PanelArranged.Refresh();
return(location);
}
private Control GetTargetControl(Point controlLocation)
{
if (PanelArranged.ClientRectangle.Contains(PanelArranged.PointToClient(Cursor.Position)))
{
foreach (Control control in PanelArranged.Controls)
{
Rectangle clientRectangle = new Rectangle(control.Location, control.Size);
if (control is GroupBox && clientRectangle.Contains(controlLocation))
{
return(control as GroupBox);
}
}
}
return(null);
}