/// <summary>
/// 此成员重写 <see cref="M:System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message@)" />。
/// </summary>
/// <param name="m">一个 Windows 消息对象。</param>
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if (m.Msg == 0x0201) // WM_LBUTTONDOWN
{
if (!DesignMode)
{
if (IsShowCloseBtn)
{
var mouseLocation = this.PointToClient(Control.MousePosition);
int index = GetMouseDownTabHead(mouseLocation);
if (index >= 0)
{
if (UncloseTabIndexs != null)
{
if (UncloseTabIndexs.ToList().Contains(index))
{
return;
}
}
Rectangle rect = this.GetTabRect(index);
var closeRect = new Rectangle(rect.Right - 15, rect.Top + 5, 10, 10);
if (closeRect.Contains(mouseLocation))
{
this.TabPages.RemoveAt(index);
return;
}
}
}
}
}
}
/// <summary>
/// Paints the tab.
/// </summary>
/// <param name="e">The <see cref="System.Windows.Forms.PaintEventArgs" /> instance containing the event data.</param>
/// <param name="index">The index.</param>
private void PaintTab(System.Windows.Forms.PaintEventArgs e, int index)
{
GraphicsPath path = this.GetTabPath(index);
this.PaintTabBackground(e.Graphics, index, path);
this.PaintTabBorder(e.Graphics, index, path);
this.PaintTabText(e.Graphics, index);
this.PaintTabImage(e.Graphics, index);
if (IsShowCloseBtn)
{
if (UncloseTabIndexs != null)
{
if (UncloseTabIndexs.ToList().Contains(index))
{
return;
}
}
Rectangle rect = this.GetTabRect(index);
e.Graphics.DrawLine(new Pen(closeBtnColor, 1F), new Point(rect.Right - 15, rect.Top + 5), new Point(rect.Right - 5, rect.Top + 15));
e.Graphics.DrawLine(new Pen(closeBtnColor, 1F), new Point(rect.Right - 5, rect.Top + 5), new Point(rect.Right - 15, rect.Top + 15));
}
}
