FLTK2 uses the long RGBA form for colors, e.g. '0xff000000' for red.
'parse_color("0xff000000") returns the red color.
My X11R7-system accepts '0xf800' for red ('0x1f':blue), but FLTK2 not.
My X11R7-system refuses '0xff000000' for red, but FLTK2 not.
The following patch does what I expect. But it may be not general
enough.
winfried
--- Color.cxx.orig 2009-08-26 06:08:51.000000000 +0200
+++ Color.cxx 2009-08-26 13:40:08.000000000 +0200
@@ -102,6 +102,22 @@
}
if (length > 2 && name[0]=='0' && (name[1]=='x' || name[1]=='X')) {
+#if USE_X11
+ if(length <= 6)
+ {
+ XColor xcolor;
+ unsigned long pixel;
+
+ sscanf(name+2, "%lx", &pixel);
+ memset(&xcolor, 0, sizeof(XColor));
+ if(pixel != 0)
+ {
+ xcolor.pixel = pixel;
+ XQueryColor(xdisplay, xcolormap, &xcolor);
+ }
+ return ccolor(xcolor.red>>8,xcolor.green>>8,xcolor.blue>>8);
+ }
+#endif
sscanf(name+2, "%x%n", &r, &n);
if (n == length-2) return Color(r);
}
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