/// <summary>
/// Return image for specific Id and Hex Color
/// </summary>
/// <param name="symbolId">Symbol Id</param>
/// <param name="hexColor">Symbol color as a hex string</param>
/// <returns>Image as a byte array</returns>
public static byte[] GetSymbolImage(long symbolId, string hexColor = "")
{
var connectionString = ConnectionManager.DefaultInstance.ConnectionString;
var symbolSet = new SymbolSet(connectionString);
var ms = new MemoryStream();
var img = symbolSet.GetImage(symbolId);
if (img == null)
{
img = new Bitmap(16, 16);
//((Bitmap)img).MakeTransparent(Color.White);
var g = Graphics.FromImage(img);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.Clear(Color.Transparent);
Color color;
try
{
color = hexColor == "" ? Color.Green : ColorTranslator.FromHtml(hexColor);
}
catch (Exception ex)
{
color = Color.Green;
Trace.WriteLine(ex);
}
var rect = new Rectangle(0, 0, 15, 15);
switch (symbolId)
{
case 0:
g.FillEllipse(new SolidBrush(color), rect);
g.DrawEllipse(new Pen(Color.Black, 1), rect);
break;
case 1:
var pntArrey = new PointF[3];
pntArrey[0] = new PointF(0, 14);
pntArrey[1] = new PointF(7f, 0);
pntArrey[2] = new PointF(14, 14);
g.FillPolygon(new SolidBrush(color), pntArrey);
g.DrawPolygon(new Pen(Color.Black, 1), pntArrey);
break;
default:
g.FillRectangle(new SolidBrush(color), rect);
g.DrawRectangle(new Pen(Color.Black, 1), rect);
break;
}
g.Dispose();
}
//img.Save(@"C:/test.png", ImageFormat.Png);
img.Save(ms, ImageFormat.Png);
symbolSet.Dispose();
return(ms.ToArray());
}
