protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
PointInWindowPart ptPos = this.FindPointPossition(e.MouseDevice.GetPosition(this));
if (ptPos == PointInWindowPart.InTitle ||
this.DragFullWindows && (ptPos == PointInWindowPart.None))
{
this.DragMove();
}
else if (ptPos != PointInWindowPart.None && this.Resizable)
{
Win32API.SendMessage(this._interopHelper.Handle, Win32API.WM_SYSCOMMAND, (int)(Win32API.SC_SIZE + ptPos), 0);
}
base.OnMouseLeftButtonDown(e);
}
private PointInWindowPart FindPointPossition(Point pt)
{
if (this.ResizeMode != ResizeMode.NoResize &&
this.ResizeMode != ResizeMode.CanMinimize)
{
return(PointInWindowPart.None);
}
if (this.WindowState == System.Windows.WindowState.Maximized)
{
return(PointInWindowPart.None);
}
Rect titleRect = new Rect(this.CornerRadius,
this.BorderThickness.Top,
this.ActualWidth - this.CornerRadius * 2,
this.TitleHeight - this.BorderThickness.Top);
Rect leftBorderRect = new Rect(0,
this.CornerRadius,
this.BorderThickness.Left,
this.ActualHeight - this.CornerRadius * 2);
Rect rightBorderRect = new Rect(this.ActualWidth - this.BorderThickness.Right,
this.CornerRadius,
this.BorderThickness.Right,
this.ActualHeight - this.CornerRadius * 2);
Rect topBorderRect = new Rect(this.CornerRadius,
0,
this.ActualWidth - this.CornerRadius * 2,
this.BorderThickness.Top);
Rect botttomBorderRect = new Rect(this.CornerRadius,
this.ActualHeight - this.BorderThickness.Bottom,
this.ActualWidth - this.CornerRadius * 2,
this.BorderThickness.Bottom);
Rect topLeftBorderRect = new Rect(0,
0,
this.CornerRadius,
this.CornerRadius);
Rect topRightBorderRect = new Rect(this.ActualWidth - this.CornerRadius,
0,
this.CornerRadius,
this.CornerRadius);
Rect bottomLeftBorderRect = new Rect(0,
this.ActualHeight - this.CornerRadius,
this.CornerRadius,
this.CornerRadius);
Rect bottomRightBorderRect = new Rect(this.ActualWidth - this.CornerRadius,
this.ActualHeight - this.CornerRadius,
this.CornerRadius,
this.CornerRadius);
PointInWindowPart ptPos = PointInWindowPart.None;
if (this.PtInRect(pt, titleRect))
{
ptPos = PointInWindowPart.InTitle;
this.Cursor = Cursors.Arrow;
}
else if (this.PtInRect(pt, leftBorderRect))
{
ptPos = PointInWindowPart.Left;
if (this.Resizable)
{
this.Cursor = Cursors.SizeWE;
}
}
else if (this.PtInRect(pt, rightBorderRect))
{
ptPos = PointInWindowPart.Right;
if (this.Resizable)
{
this.Cursor = Cursors.SizeWE;
}
}
else if (this.PtInRect(pt, topBorderRect))
{
ptPos = PointInWindowPart.Top;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNS;
}
}
else if (this.PtInRect(pt, botttomBorderRect))
{
ptPos = PointInWindowPart.Bottom;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNS;
}
}
else if (this.PtInRect(pt, topLeftBorderRect))
{
ptPos = PointInWindowPart.TopLeft;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNWSE;
}
}
else if (this.PtInRect(pt, topRightBorderRect))
{
ptPos = PointInWindowPart.TopRight;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNESW;
}
}
else if (this.PtInRect(pt, bottomLeftBorderRect))
{
ptPos = PointInWindowPart.BottomLeft;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNESW;
}
}
else if (this.PtInRect(pt, bottomRightBorderRect))
{
ptPos = PointInWindowPart.BottomRight;
if (this.Resizable)
{
this.Cursor = Cursors.SizeNWSE;
}
}
else
{
this.Cursor = Cursors.Arrow;
}
Debug.WriteLine(ptPos);
return(ptPos);
}
