AGS.Editor.GUIEditor.bgPanel_MouseDown C# (CSharp) Метод

        private void bgPanel_MouseDown(object sender, MouseEventArgs e)
        {
            this.Focus();
            int mouseX, mouseY;
            GetCoordinatesAtGameResolution(e, out mouseX, out mouseY);

            if (_gui is TextWindowGUI)
            {
                SetSelectedControlToControlAtPosition(mouseX, mouseY);
            }
            else if (AboutToAddControl())
            {
                _addingControl = true;
                _addingControlX = e.X;
                _addingControlY = e.Y;
            }
            else if ((_inResizingArea) && (_selectedControl != null) && (!_selectedControl.Locked))
            {
                _resizingControl = true;
                _mouseXOffset = _selectedControl.Width - (mouseX - _selectedControl.Left);
                _mouseYOffset = _selectedControl.Height - (mouseY - _selectedControl.Top);
            }
            else
            {
                fromCombo = false;
                SetSelectedControlToControlAtPosition(mouseX, mouseY);
                if ((_selectedControl != null) && (!_selectedControl.Locked))
                {
                    _movingControl = true;
                    _mouseXOffset = mouseX - _selectedControl.Left;
                    _mouseYOffset = mouseY - _selectedControl.Top;
                }
                else if (e.Button == MouseButtons.Left && _selectedControl == null)//nothing selected
                {
                    _drawingSelectionBox = true;
                    _selectionRect = new Rectangle(mouseX, mouseY, 1, 1);
                    _selectionBoxX = mouseX;
                    _selectionBoxY = mouseY;
            }
            }
        }