void HexStringToBytes(const WCHAR* str, uint8* buf, int length)
{
for (int i = 0; i < length; i++)
{
int l = Hex2Number(str[i*2+0]);
int h = Hex2Number(str[i*2+1]);
buf[i] = (l<<4) | h;
}
}
ErrorCode ParseRGBColor(/*[in]*/ const WCHAR* p, /*[out]*/ const WCHAR** pp, /*[out,retval]*/ Graphics::Color* pVal)
{
ASSERT(pVal != NULL);
ASSERT(pp != NULL);
*pp = NULL;
if (*p == '#')
{
p++;
const WCHAR* s = p;
while (*p && isxdigit(*p))
{
p++;
}
if (p-s == 3)
{
*pp = p;
*pVal = Graphics::Color(255,
(Hex2Number(s[0])<<4) | Hex2Number(s[0]),
(Hex2Number(s[1])<<4) | Hex2Number(s[1]),
(Hex2Number(s[2])<<4) | Hex2Number(s[2]));
return 0;
}
else if (p-s == 6)
{
*pp = p;
*pVal = Graphics::Color(255,
(Hex2Number(s[0])<<4) | Hex2Number(s[1]),
(Hex2Number(s[2])<<4) | Hex2Number(s[3]),
(Hex2Number(s[4])<<4) | Hex2Number(s[5]));
return 0;
}
}
else if ((p[0] == 'r') && (p[1] == 'g') && (p[2] == 'b'))
{
p += 3;
while (*p && *p == L' ') p++; // Skip spaces
if (*p++ != L'(') return -1; // Error
while (*p && *p == L' ') p++; // Skip spaces
double red = getfnumber(&p);
if (p == NULL) return -1;
if (*p == L'%')
{
p++;
red = red * 255 / 100;
}
while (*p && *p == L' ') p++; // Skip spaces
if (*p++ != L',') return -1;
while (*p && *p == L' ') p++; // Skip spaces
double green = getfnumber(&p);
if (p == NULL) return -1;
if (*p == L'%')
{
p++;
green = green * 255 / 100;
}
while (*p && *p == L' ') p++; // Skip spaces
if (*p++ != L',') return -1;
while (*p && *p == L' ') p++; // Skip spaces
double blue = getfnumber(&p);
if (p == NULL) return -1;
if (*p == L'%')
{
p++;
blue = blue * 255 / 100;
}
while (*p && *p == L' ') p++; // Skip spaces
if (*p++ != L')') return -1; // Error
*pp = p;
if (red < 0) red = 0;
else if (red > 255) red = 255;
if (green < 0) green = 0;
else if (green > 255) green = 255;
if (blue < 0) blue = 0;
else if (blue > 255) blue = 255;
*pVal = Graphics::Color(255, (uint8)red, (uint8)green, (uint8)blue);
return 0;
}
else // Named color
{
// TODO, smarter search given that array is sorted
// TODO, make one array only
int i = 0;
ASSERT(0);
#if 0
while (i < ColorNames_length)
{
// int len = wcslen(ColorNames[i].name);
if (ColorNames[i].get_Name() == p, len))
{
*pp = p + len;
*pVal = ColorNames[i].clr | 0xff000000;
return 0;
}
++i;
}
i = 0;
while (SystemColors[i].name)
{
int len = wcslen(SystemColors[i].name);
if (!wcsncmp(SystemColors[i].name, p, len))
{
*pp = p + len;
*pVal = SystemColors[i].clr | 0xff000000;
return 0;
}
i++;
}
#endif
}
return -1;
}
