50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
|
#include <amethyst/color.hpp>
|
||
|
|
|
||
|
|
namespace Amy {
|
||
|
|
// The Solution of the biggest performance issue
|
||
|
|
// A Simple Lookup table
|
||
|
|
static const std::map<char, int> HEX_DEC = {
|
||
|
|
{'0', 0}, {'1', 1}, {'2', 2}, {'3', 3}, {'4', 4}, {'5', 5},
|
||
|
|
{'6', 6}, {'7', 7}, {'8', 8}, {'9', 9}, {'a', 10}, {'b', 11},
|
||
|
|
{'c', 12}, {'d', 13}, {'e', 14}, {'f', 15}, {'A', 10}, {'B', 11},
|
||
|
|
{'C', 12}, {'D', 13}, {'E', 14}, {'F', 15}};
|
||
|
|
|
||
|
|
Color& Color::Hex(const std::string& hex) {
|
||
|
|
// zu dumm nen safetey check zu schreiben wadafuk
|
||
|
|
/**#ifndef AMY_GOD_DEV
|
||
|
|
/// Safetey check (not required if you just program well xd)
|
||
|
|
if (hex.length() != 7 || hex.length() != 9 || hex.length() != 6 ||
|
||
|
|
hex.length() != 8 || std::find_if(hex.begin(), hex.end(), [](char c) {
|
||
|
|
return !std::isxdigit(c);
|
||
|
|
}) != hex.end()) {
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
#endif*/
|
||
|
|
int offset = ((hex.length() == 7 || hex.length() == 9) ? 1 : 0);
|
||
|
|
r = HEX_DEC.at(hex[offset]) * 16 + HEX_DEC.at(hex[offset + 1]);
|
||
|
|
offset += 2;
|
||
|
|
g = HEX_DEC.at(hex[offset]) * 16 + HEX_DEC.at(hex[offset + 1]);
|
||
|
|
offset += 2;
|
||
|
|
b = HEX_DEC.at(hex[offset]) * 16 + HEX_DEC.at(hex[offset + 1]);
|
||
|
|
offset += 2;
|
||
|
|
if (hex.length() == 9) {
|
||
|
|
a = HEX_DEC.at(hex[offset]) * 16 + HEX_DEC.at(hex[offset + 1]);
|
||
|
|
} else {
|
||
|
|
a = 255;
|
||
|
|
}
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string Color::Hex(bool rgba) const {
|
||
|
|
/** Need to int cast (so it is used as num and not char...) */
|
||
|
|
std::stringstream s;
|
||
|
|
s << "#";
|
||
|
|
s << std::hex << std::setw(2) << std::setfill('0') << (int)r;
|
||
|
|
s << std::hex << std::setw(2) << std::setfill('0') << (int)g;
|
||
|
|
s << std::hex << std::setw(2) << std::setfill('0') << (int)b;
|
||
|
|
if (rgba) {
|
||
|
|
s << std::hex << std::setw(2) << std::setfill('0') << (int)a;
|
||
|
|
}
|
||
|
|
return s.str();
|
||
|
|
}
|
||
|
|
} // namespace Amy
|