/**
* Create string representation of a fop-rgb-icc (or fop-rgb-named-color) function call from the
* given color.
*
* @param color the color to turn into a function call
* @return the string representing the internal fop-rgb-icc() or fop-rgb-named-color() function
* call
*/
private static String toFunctionCall(ColorWithAlternatives color) {
ColorSpace cs = color.getColorSpace();
if (cs.isCS_sRGB() && !color.hasAlternativeColors()) {
return toRGBFunctionCall(color);
}
if (cs instanceof CIELabColorSpace) {
return toCIELabFunctionCall(color);
}
Color specColor = color;
if (color.hasAlternativeColors()) {
Color alt = color.getAlternativeColors()[0];
if (ColorSpaces.isDeviceColorSpace(alt.getColorSpace())) {
cs = alt.getColorSpace();
specColor = alt;
}
}
ColorSpaceOrigin origin = ColorSpaces.getColorSpaceOrigin(cs);
String functionName;
Color fallbackColor = getsRGBFallback(color);
float[] rgb = fallbackColor.getColorComponents(null);
assert rgb.length == 3;
StringBuffer sb = new StringBuffer(40);
sb.append("(");
sb.append(rgb[0]).append(",");
sb.append(rgb[1]).append(",");
sb.append(rgb[2]).append(",");
String profileName = origin.getProfileName();
sb.append(profileName).append(",");
if (origin.getProfileURI() != null) {
sb.append("\"").append(origin.getProfileURI()).append("\"");
}
if (cs instanceof NamedColorSpace) {
NamedColorSpace ncs = (NamedColorSpace) cs;
if (SEPARATION_PSEUDO_PROFILE.equalsIgnoreCase(profileName)) {
functionName = "fop-rgb-icc";
} else {
functionName = "fop-rgb-named-color";
}
sb.append(",").append(ncs.getColorName());
} else {
functionName = "fop-rgb-icc";
float[] colorComponents = specColor.getColorComponents(null);
for (float colorComponent : colorComponents) {
sb.append(",");
sb.append(colorComponent);
}
}
sb.append(")");
return functionName + sb.toString();
}
private static Color getsRGBFallback(ColorWithAlternatives color) {
Color fallbackColor;
if (color instanceof ColorWithFallback) {
fallbackColor = ((ColorWithFallback) color).getFallbackColor();
if (!fallbackColor.getColorSpace().isCS_sRGB()) {
fallbackColor = toSRGBColor(fallbackColor);
}
} else {
fallbackColor = toSRGBColor(color);
}
return fallbackColor;
}
/**
* Set the non stroking color, specified as RGB.
*
* @param color The color to set.
* @throws IOException If an IO error occurs while writing to the stream.
*/
public void setNonStrokingColor(Color color) throws IOException {
ColorSpace colorSpace = color.getColorSpace();
if (colorSpace.getType() == ColorSpace.TYPE_RGB) {
setNonStrokingColor(color.getRed(), color.getGreen(), color.getBlue());
} else if (colorSpace.getType() == ColorSpace.TYPE_GRAY) {
color.getColorComponents(colorComponents);
setNonStrokingColor(colorComponents[0]);
} else if (colorSpace.getType() == ColorSpace.TYPE_CMYK) {
color.getColorComponents(colorComponents);
setNonStrokingColor(
colorComponents[0], colorComponents[2], colorComponents[2], colorComponents[3]);
} else {
throw new IOException("Error: unknown colorspace:" + colorSpace);
}
}
/**
* Creates a re-parsable string representation of the given color.
*
* <p>First, the color will be converted into the sRGB colorspace. It will then be printed as
* #rrggbb, or as #rrrggbbaa if an alpha value is present.
*
* @param color the color to represent.
* @return a re-parsable string representadion.
*/
public static String colorToString(Color color) {
ColorSpace cs = color.getColorSpace();
if (color instanceof ColorWithAlternatives) {
return toFunctionCall((ColorWithAlternatives) color);
} else if (cs != null && cs.getType() == ColorSpace.TYPE_CMYK) {
StringBuffer sbuf = new StringBuffer(24);
float[] cmyk = color.getColorComponents(null);
sbuf.append("cmyk(")
.append(cmyk[0])
.append(",")
.append(cmyk[1])
.append(",")
.append(cmyk[2])
.append(",")
.append(cmyk[3])
.append(")");
return sbuf.toString();
} else {
return toRGBFunctionCall(color);
}
}