If I have understood your question correctly, what you are trying to do is,
1. Create a custom LED Style type (say MyStyle) with additional properties.
2. Identify the LED Style type based on values of the properties of the MyStyle instance.
If it is so, this is what I would do.
public class MyStyle : LedStyle
{
public MyStyle()
{
}
public MyStyle(Color color, bool textOnValue)
{
ellipseColor = color;
textOn = textOnValue;
}
private bool textOn = false;
public Boolean TextOn
{
get
{
return textOn;
}
set
{
textOn = value;
}
}
private Color ellipseColor;
public Color EllipseColor
{
get
{
return ellipseColor;
}
set
{
ellipseColor = value;
}
}
public override void Draw(object context, LedStyleDrawArgs args)
{
LedStyle.Round3D.Draw(context, args);
// Some drawing code here.
// I am simply drawing an circle around the LED and
// draw 'hello' string if TextOn is true.
args.Graphics.DrawEllipse(new Pen(ellipseColor, 2), args.Bounds);
if (TextOn)
{
args.Graphics.DrawString("Hello", SystemFonts.DefaultFont, Brushes.Brown, new PointF(5, 5));
}
}
/////////////////////////////////////////////////////////////////////////////
// Solution 1
// The measurement studio provides 4 LED styles. You can customize it to have more LED Styles.
// If your requirement is to have a very small set of variations of properties, then you can create static instances of the custom LED style. Following are some sample static properties.
// NOTE: For this to work, the properties TextOn and EllipseColor should be GET only.
/////////////////////////////////////////////////////////////////////////////
public static readonly MyStyle myBlueColoredEllipseWithTextOff = new MyStyle(Color.Blue, true);
public static MyStyle MyBlueColoredEllipseWithTextOff
{
get
{
return myBlueColoredEllipseWithTextOff;
}
}
public static readonly MyStyle myRedColoredEllipseWithTextOn = new MyStyle(Color.Red, false);
public static MyStyle MyRedColoredEllipseWithTextOn
{
get
{
return myRedColoredEllipseWithTextOn;
}
}
/// Comparison of the style yet remains the same as follows.
/// if(myLedInstance.LedStyle == MyStyle.MyRedColoredEllipseWithTextOn)
/// {
/// //do something here.
/// }
/////////////////////////////////////////////////////////////////////////////
// Solution 2
// If the properties are both GET and SET types then you should consider this option.
/////////////////////////////////////////////////////////////////////////////
public override int GetHashCode()
{
int returnValue = 0;
//<ADD CODE HERE TO GET A UNIQUE HASHCODE FOR AN INSTANCE.
// THE HASH CODE CALCULATION SHOULD DEPEND ON THE NEW PROPERITES THAT YOU ADD.>
// So when you want to compare the instances, you just need to get the HashCode and compare the values.
return returnValue;
}
/////////////////////////////////////////////////////////////////////////////
// Solution 3
// This is another alternative if Hash code calculation isn't going to be easy.
/////////////////////////////////////////////////////////////////////////////
public string GetInstanceAsString()
{
StringBuilder returnString = new StringBuilder();
returnString.Append("TextOn: " + TextOn.ToArgb());
returnString.Append(", ");
returnString.Append("EllipseColor: " + EllipseColor.ToArgb());
// Use this string to compare.
return returnString.ToString();
}
/////////////////////////////////////////////////////////////////////////////
}
I hope this is what you are looking for. Let us know if you wanted something else.
Vijet Patankar
National Instruments.
