/// <summary>
/// Draws the marker (circle) inside the box
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="Unconditional"></param>
private void DrawMarker(Gdk.Window win, int x, int y, bool Unconditional) // *****
{ // * | *
if (x < 0)
{
x = 0; // * | *
}
if (x > this.Allocation.Width - 4)
{
x = this.Allocation.Width - 4; // * | *
}
if (y < 0)
{
y = 0; // * | *
}
if (y > this.Allocation.Height - 4)
{
y = this.Allocation.Height - 4; // *----X----*
}
// * | *
if (m_iMarker_Y == y && m_iMarker_X == x && !Unconditional) // * | *
{
return; // * | *
}
// * | *
ClearMarker(win); // *****
m_iMarker_X = x;
m_iMarker_Y = y;
//Graphics g = Gtk.DotNet.Graphics.FromDrawable( win );
//Pen pen;
GraphUtil.HSL _hsl = GetColor(x, y); // The selected color determines the color of the marker drawn over
// it (black or white)
Color color = Color.White;
if (_hsl.L < (double)200 / 255)
{
color = Color.White; // White marker if selected color is dark
}
else if (_hsl.H < (double)26 / 360 || _hsl.H > (double)200 / 360)
{
if (_hsl.S > (double)70 / 255)
{
color = Color.White;
}
else
{
color = Color.Black; // Else use a black marker for lighter colors
}
}
else
{
color = Color.Black;
}
Gdk.GC gc = new Gdk.GC(win);
gc.RgbFgColor = GraphUtil.gdkColorFromWinForms(color);
win.DrawArc(gc, false, x - 3, y - 3, 10, 10, 0 * 64, 360 * 64);
//DrawBorder(win); // Force the border to be redrawn, just in case the marker has been drawn over it.
}