/// <summary>
/// 引发 System.Windows.Forms.Form.MouseDown 事件。
/// </summary>
/// <param name="e">包含事件数据的 System.Windows.Forms.MouseEventArgs。</param>
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (!this.DesignMode)
{
Point point = e.Location;
foreach (UIToolBarItem item in this.Items)
{
if (item.Rectangle.Contains(point))
{
if (item != this.SelectedItem)
{
this._selectedItem = item;
this.OnSelectedItemChanged(EventArgs.Empty);
this._selectedIndex = this.Items.GetIndexOfRange(item);
this.OnSelectedIndexChanged(EventArgs.Empty);
this.Invalidate();
}
}
else
{
item.MouseState = MouseOperate.Normal;
this.Invalidate(item.Rectangle);
}
}
}
}
/// <summary>
/// 跳到选择项
/// </summary>
/// <param name="index">索引</param>
public void SelectIndex(int index)
{
if (index >= this._items.Count || index < 0)
{
return;
}
this._selectedItem = _items[index];
this._selectedIndex = index;
this.Invalidate();
this.OnSelectedIndexChanged(EventArgs.Empty);
}