public Point GetTangentPosition(Forms.NotifyIcon icon)
{
#region Verbose
#if Verbose
var wa = icon.GetScreen().WorkingArea;
Logger.Debug($"GetTangent trayIcon.ScreenOf x={wa.X} y={wa.Y} left={wa.Left} " +
$"top={wa.Top} width={wa.Width} height={wa.Height} (Win32 unscaled)");
#endif
#endregion
var location = icon.GetRectangle();
if (location.Equals(Rect.Empty))
{
location = SystemTray.GetRectangle();
// we need to estimate full geometry of icon based on taskbar orientation
// presume standard icon size of 16x16
if ((Edge == ScreenEdge.Bottom) || (Edge == ScreenEdge.Top))
{
location = new Rect(new Point(location.X, location.Y), new Size(16, location.Y));
}
else // left|right
{
location = new Rect(new Point(location.X, location.Y), new Size(location.X, 16));
}
#region Verbose
#if Verbose
Logger.Debug("GetTangent fallback to tray location " +
$"x={location.X}, y={location.Y} w={location.Width} h={location.Height}");
#endif
#endregion
}
#region Verbose
#if Verbose
else
{
// we should have full geometry of icon rectange regardless of taskbar Edge
Logger.Debug("GetTangent notify icon location " +
$"x={location.X}, y={location.Y} w={location.Width} h={location.Height}" +
" (Win32 unscaled)");
}
var xa = SystemParameters.WorkArea;
Logger.Debug($"...WPF workarea x={xa.X} y={xa.Y} left={xa.Left} top={xa.Top} " +
$"width={xa.Width} height={xa.Height}");
var fa = Forms.Screen.PrimaryScreen.WorkingArea;
Logger.Debug($"...FRM workarea x={fa.X} y={fa.Y} left={fa.Left} top={fa.Top} " +
$"width={fa.Width} height={fa.Height}");
#endif
#endregion
// calculate scaling factors
// TODO: this is limited to the primary monitor so we must assume this is where our
// notify icon resides; otherwise, this may not be correct in a multi-DPI desktop
var xscale = Forms.Screen.PrimaryScreen.WorkingArea.Width / SystemParameters.WorkArea.Width;
var yscale = Forms.Screen.PrimaryScreen.WorkingArea.Height / SystemParameters.WorkArea.Height;
location = new Rect(
new Point(location.X / xscale, location.Y / yscale),
new Size(location.Width / xscale, location.Height / yscale));
#region Verbose
#if Verbose
Logger.Debug("GetTangent scale-adjusted location " +
$"x={location.X}, y={location.Y} w={location.Width} h={location.Height}");
#endif
#endregion
var x = 0.0;
var y = 0.0;
switch (Edge)
{
case ScreenEdge.Bottom:
case ScreenEdge.Right:
// return upper-left corner of icon
x = location.Left; // + (int)(location.Width / 2);
y = location.Top;
break;
case ScreenEdge.Top:
// return lower-left corner of tray
x = location.Left;
y = location.Bottom;
break;
case ScreenEdge.Left:
// return upper-right corner of tray
x = location.Top;
y = location.Right;
break;
}
#region Verbose
#if Verbose
Logger.Debug($"GetTangent X={x}, Y={y}");
#endif
#endregion
return(new Point {
X = x, Y = y
});
}
