public EncapsulatedPostScriptRenderer(ISizeCalculation iSize, GColor darkColor, GColor lightColor)
{
#endif
m_iSize = iSize;
m_DarkColor = darkColor;
m_LightColor = lightColor;
m_DrawingTechnique = EpsModuleDrawingTechnique.Squares;
}
public SVGRenderer(ISizeCalculation isize, GColor darkcolor, GColor lightcolor)
{
#endif
m_iSize = isize;
m_DarkColor = darkcolor;
m_LightColor = lightcolor;
}
private static double Luminance(GColor color)
{
#endif
double r, g, b;
r = Colorspace(color.R);
g = Colorspace(color.G);
b = Colorspace(color.B);
return(0.2126 * r + 0.7152 * g + 0.0722 * b);
}
internal static string BackgroundStyle(GColor color)
{
#endif
double alpha = ConvertAlpha(color.A);
return(string.Format(CultureInfo.InvariantCulture.NumberFormat,
"style=\"background-color:rgb({0},{1},{2});background-color:rgba({0},{1},{2},{3});\"",
color.R,
color.G,
color.B,
alpha));
}
public static Contrast GetContrast(GColor backGround, GColor frontColor)
{
GColor back = new FormColor(Color.FromArgb(backGround.A, backGround.R, backGround.G, backGround.B));
GColor front = new FormColor(Color.FromArgb(frontColor.A, frontColor.R, frontColor.G, frontColor.B));
#endif
if (back.A == 255)
{
if (front.A < 255)
{
front = OverlayOn(front, back);
}
double l1 = Luminance(back) + 0.05;
double l2 = Luminance(front) + 0.05;
double ratio = l2 > l1 ? l2 / l1 : l1 / l2;
ratio = Math.Round(ratio, 1);
return(new Contrast()
{
Ratio = ratio,
Error = 0,
Min = ratio,
Max = ratio,
Closet = null,
Farthest = null
});
}
double onBlack = GetContrast(OverlayOn(back, Black), front).Ratio;
double onWhite = GetContrast(OverlayOn(back, White), front).Ratio;
double max = Math.Max(onBlack, onWhite);
#if NETFX_CORE || SILVERLIGHT
Color closest = Closest(backGround, frontColor);
#else
GColor closest = Closest(backGround, frontColor);
#endif
double min = GetContrast(OverlayOn(back, closest), front).Ratio;
return(new Contrast()
{
Ratio = Math.Round((max + min) / 2, 2),
Error = Math.Round((max - min) / 2, 2),
Min = min,
Max = max,
Closet = closest,
Farthest = onWhite == max ? White : Black
});
}
private static GColor Closest(GColor backGround, GColor frontColor)
{
#endif
double alpha = Convert.ToDouble(backGround.A) / Convert.ToDouble(byte.MaxValue);
#if NETFX_CORE || SILVERLIGHT
return(Color.FromArgb(byte.MaxValue,
ConvertByte((Convert.ToDouble(frontColor.R) - Convert.ToDouble(backGround.R) * alpha) / (1 - alpha)),
ConvertByte((Convert.ToDouble(frontColor.G) - Convert.ToDouble(backGround.G) * alpha) / (1 - alpha)),
ConvertByte((Convert.ToDouble(frontColor.B) - Convert.ToDouble(backGround.B) * alpha) / (1 - alpha))));
#else
return(new FormColor(Color.FromArgb(byte.MaxValue,
ConvertByte((Convert.ToDouble(frontColor.R) - Convert.ToDouble(backGround.R) * alpha) / (1 - alpha)),
ConvertByte((Convert.ToDouble(frontColor.G) - Convert.ToDouble(backGround.G) * alpha) / (1 - alpha)),
ConvertByte((Convert.ToDouble(frontColor.B) - Convert.ToDouble(backGround.B) * alpha) / (1 - alpha)))));
#endif
}
private static GColor OverlayOn(this GColor color, GColor backGround)
{
#endif
byte r, g, b, a;
double alpha, bAlpha;
if (color.A == 255)
#if NETFX_CORE || SILVERLIGHT
{ return(Color.FromArgb(color.A, color.R, color.G, color.B)); }
#else
{ return(new FormColor(Color.FromArgb(color.A, color.R, color.G, color.B))); }
#endif
alpha = Convert.ToDouble(color.A) / Convert.ToDouble(byte.MaxValue);
bAlpha = Convert.ToDouble(backGround.A) / Convert.ToDouble(byte.MaxValue);
r = ConvertByte(Convert.ToDouble(color.R) * alpha + Convert.ToDouble(backGround.R) * bAlpha * (1 - alpha));
g = ConvertByte(Convert.ToDouble(color.G) * alpha + Convert.ToDouble(backGround.G) * bAlpha * (1 - alpha));
b = ConvertByte(Convert.ToDouble(color.B) * alpha + Convert.ToDouble(backGround.B) * bAlpha * (1 - alpha));
a = backGround.A == byte.MaxValue ? byte.MaxValue : ConvertByte((alpha + bAlpha * (1 - alpha)) * Convert.ToDouble(byte.MaxValue));
#if NETFX_CORE || SILVERLIGHT
return(Color.FromArgb(a, r, g, b));
#else
return(new FormColor(Color.FromArgb(a, r, g, b)));
#endif
}
internal static StringBuilder AppendSVGTag(this StringBuilder sb, MatrixPoint displaysize, MatrixPoint viewboxSize, GColor background, GColor fill)
{
#endif
if (displaysize.X <= 0 || displaysize.Y <= 0)
{
return(sb.Append(string.Format(CultureInfo.InvariantCulture.NumberFormat,
"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.2\" baseProfile=\"tiny\" viewBox=\"0 0 {0} {1}\" viewport-fill=\"rgb({2}, {3}, {4})\" viewport-fill-opacity=\"{5}\" fill=\"rgb({6}, {7}, {8})\" fill-opacity=\"{9}\" {10}>",
viewboxSize.X,
viewboxSize.Y,
background.R,
background.G,
background.B,
ConvertAlpha(background.A),
fill.R,
fill.G,
fill.B,
ConvertAlpha(fill.A),
BackgroundStyle(background)
)));
}
else
{
return(sb.Append(string.Format(CultureInfo.InvariantCulture.NumberFormat,
"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.2\" baseProfile=\"tiny\" viewBox=\"0 0 {0} {1}\" viewport-fill=\"rgb({2}, {3}, {4})\" viewport-fill-opacity=\"{5}\" fill=\"rgb({6}, {7}, {8})\" fill-opacity=\"{9}\" {10} width=\"{11}\" height=\"{12}\">",
viewboxSize.X,
viewboxSize.Y,
background.R,
background.G,
background.B,
ConvertAlpha(background.A),
fill.R,
fill.G,
fill.B,
ConvertAlpha(fill.A),
BackgroundStyle(background),
displaysize.X,
displaysize.Y)));
}
}
private static GColor InverseColor(GColor color)
{
Color result = Color.FromArgb(color.A, byte.MaxValue - color.R, byte.MaxValue - color.G, byte.MaxValue - color.B);
return(new FormColor(result));
}