/// <summary>
/// 引发 System.Windows.Forms.Form.MouseDown。
/// </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);
var point = e.Location;
if (e.Button == MouseButtons.Right)
{
if (this.TitleBarRect.Contains(point) && !SysBtnRect.Contains(point))
{
var menu = NativeMethods.GetSystemMenu(this.Handle, false);
RECT rect = new RECT();
var result = NativeMethods.TrackPopupMenu(menu, (int)WindowsMessage.WM_KEYDOWN, MousePosition.X, MousePosition.Y, 0, this.Handle, ref rect);
MenuClick((MenuType)result);
}
return;
}
if (CloseContains(point))
{
CloseState = TMouseState.Down;
}
else if (MiniRect.Contains(point))
{
MinState = TMouseState.Down;
}
else if (MaxRect.Contains(point))
{
MaxState = TMouseState.Down;
}
if ((_sysButton == TSysButton.Normal || _sysButton == TSysButton.Close_Max) && e.Clicks == 2)
{
WindowMax();
}
}
/// <summary>
/// 引发 System.Windows.Forms.Form.MouseUp。
/// </summary>
/// <param name="e">包含事件数据的 System.Windows.Forms.MouseEventArgs。</param>
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
if (e.Button != MouseButtons.Left)
{
return;
}
var point = e.Location;
if (CloseContains(point) && CloseState == TMouseState.Down)
{
CloseState = TMouseState.Move;
Close();
}
else
{
CloseState = TMouseState.Normal;
}
if (MiniRect.Contains(point) && MinState == TMouseState.Down)
{
MinState = TMouseState.Move;
WindowState = FormWindowState.Minimized;
}
else
{
MinState = TMouseState.Normal;
}
if (MaxRect.Contains(point) && MaxState == TMouseState.Down)
{
MaxState = TMouseState.Move;
WindowMax();
}
else
{
MaxState = TMouseState.Normal;
}
}
/// <summary>
/// 引发 System.Windows.Forms.Form.MouseMove。
/// </summary>
/// <param name="e">包含事件数据的 System.Windows.Forms.MouseEventArgs。</param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button == MouseButtons.Left)
{
return;
}
var flag = true;
string tipText = null;
var point = e.Location;
if (CloseContains(point))
{
flag = false;
if (CloseState != TMouseState.Move)
{
CloseState = TMouseState.Move;
tipText = "关闭";
}
}
else
{
CloseState = TMouseState.Normal;
}
if (MiniRect.Contains(point))
{
flag = false;
if (MinState != TMouseState.Move)
{
MinState = TMouseState.Move;
tipText = "最小化";
}
}
else
{
MinState = TMouseState.Normal;
}
if (MaxRect.Contains(point))
{
flag = false;
if (MaxState != TMouseState.Move)
{
MaxState = TMouseState.Move;
tipText = WindowState == FormWindowState.Maximized ? "还原" : "最大化";
}
}
else
{
MaxState = TMouseState.Normal;
}
if (TitleBarMenuRect.Contains(e.Location))
{
flag = false;
if (TitleBarMenuState != TMouseState.Move)
{
TitleBarMenuState = TMouseState.Move;
tipText = "菜单栏";
}
}
else
{
TitleBarMenuState = TMouseState.Normal;
}
if (tipText != null)
{
ShowTooTip(tipText);
}
if (flag)
{
HideToolTip();
}
}
/// <summary>
/// 拖动窗口大小。
/// </summary>
/// <param name="m"></param>
protected virtual void DragFormSize(ref Message m)
{
bool isR = false;
int param = m.LParam.ToInt32();
Point point = new Point(param & 0xFFFF, param >> 16);
point = PointToClient(point);
if (this.WindowState != FormWindowState.Maximized)
{
if (IsResize)
{
if (point.X <= 3)
{
if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOPLEFT;
isR = true;
}
else if (point.Y > Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOMLEFT;
isR = true;
}
else
{
m.Result = (IntPtr)WM_NCHITTEST.HTLEFT;
isR = true;
}
}
else if (point.X >= Width - 3)
{
if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOPRIGHT;
isR = true;
}
else if (point.Y >= Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOMRIGHT;
isR = true;
}
else
{
m.Result = (IntPtr)WM_NCHITTEST.HTRIGHT;
isR = true;
}
}
else if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOP;
isR = true;
}
else if (point.Y >= Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOM;
isR = true;
}
}
}
if (!isR)
{
if (TitleRect.Contains(point))
{
if (!this.MaximizeBox ||
CloseRect.Contains(point) ||
MaxRect.Contains(point) ||
MiniRect.Contains(point) ||
SkinRect.Contains(point))
{
return;
}
m.Result = (IntPtr)2;
}
}
}
