public DrawableCodeSymbol(ICodeSymbol codeSymbol, SymbolColors symbolColors)
{
this.CodeSymbol = codeSymbol;
this.SymbolColoring = symbolColors;
this.DrawSymbol = false;
this.DrawSymbolValue = false;
this.DrawBitIndices = false;
}
public void DrawCodeSymbol(ICodeSymbol symbol,
Graphics g,
SymbolColors symbolColors,
bool drawBitIndices,
bool drawSymbolValue)
{
// Draw symbol edges
float penWidth = 2;
var p = new Pen(symbolColors.Outline, penWidth);
var smallFont = new Font(this.fontFamily, 0.5F * CodeElHeight, FontStyle.Regular, GraphicsUnit.Pixel);
var largeFont = new Font(this.fontFamily, CodeElHeight, FontStyle.Regular, GraphicsUnit.Pixel);
var solidbrush = new SolidBrush(symbolColors.BitIndex);
foreach (var edge in symbol.GetContour())
{
var edgeStartX = edge.Start.X * this.CodeElWidth;
var edgeStartY = edge.Start.Y * this.CodeElHeight;
var edgeEndX = edge.End.X * this.CodeElWidth;
var edgeEndY = edge.End.Y * this.CodeElHeight;
switch (edge.GetDirection()) // Inside is on the right looking in edge direction.
{
case PolygonEdge.Direction.Down:
edgeStartX -= penWidth / 2; // shift left
edgeEndX -= penWidth / 2; // shift left
edgeStartY += penWidth / 2; // push down
edgeEndY -= penWidth / 2; // pull up
break;
case PolygonEdge.Direction.Up:
edgeStartX += penWidth / 2; // shift right
edgeEndX += penWidth / 2; // shift right
edgeStartY -= penWidth / 2; // push up
edgeEndY += penWidth / 2; // pull down
break;
case PolygonEdge.Direction.Left:
edgeStartX -= penWidth / 2; // shift left
edgeEndX += penWidth / 2; // shift right
edgeStartY -= penWidth / 2; // pull up
edgeEndY -= penWidth / 2; // pull up
break;
case PolygonEdge.Direction.Right:
edgeStartX += penWidth / 2; // shift right
edgeEndX -= penWidth / 2; // shift left
edgeStartY += penWidth / 2; // push down
edgeEndY += penWidth / 2; // push down
break;
default:
throw new NotImplementedException("Drawing Direction type " + edge.GetDirection().ToString() + " is not implemented.");
}
g.DrawLine(p, edgeStartX, edgeStartY, edgeEndX, edgeEndY);
}
// Draw bit index
if (drawBitIndices)
{
for (uint i = 0; i < symbol.CurrentSymbolLength; i++)
{
var pixCoord = symbol.GetBitCoordinate(i);
g.DrawString(i.ToString(),
smallFont,
solidbrush,
new Point((int)((pixCoord.X + 0.4F) * CodeElWidth), (int)((pixCoord.Y + 0.4F) * CodeElHeight)));
}
}
if (drawSymbolValue && (symbol.CurrentSymbolLength > 0))
{
var drawLocation = symbol.GetBitCoordinate(Math.Min(4, symbol.CurrentSymbolLength - 1));
var solidBrush = new SolidBrush(symbolColors.SymbolValue);
g.DrawString(symbol.ToString(),
largeFont,
solidBrush,
new Point((int)(drawLocation.X * CodeElWidth), (int)(drawLocation.Y * CodeElHeight)));
}
}
