Hace mucho, publicaba en esta web stermp, es una versión libre de la biblioteca conio para C. Esa biblioteca muy popular en los 90 escribía en colores por la consola, pero propietaria y sólo para entornos DOS y Windows.
Aunque cuando utilizamos C++, es normal querer utilizar un método más acorde con lo que estamos haciendo, es decir, utilizar streams.
Para ello, podemos utilizar el siguiente código:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | class ccolor { public: ccolor(unsigned short c) { setColor(c); background=-1; } ccolor(unsigned short fc, unsigned short bc) { setColor(fc); background=(bc<BRILLO_MIN)?ansicolors[bc & 15]+10:-1; } friend std::ostream& operator <<(std::ostream& out, ccolor c) { if (c.background>-1) out<<"\033["<<c.background<<"m"; out<<"\033["<<c.attributes<<";"<<c.foreground<<"m"; return out; } static const unsigned short BLACK = 0; static const unsigned short BLUE = 1; static const unsigned short GREEN = 2; static const unsigned short CYAN = 3; static const unsigned short RED = 4; static const unsigned short MAGENTA = 5; static const unsigned short BROWN = 6; static const unsigned short LIGHTGRAY = 7; static const unsigned short DARKGRAY = 8; static const unsigned short LIGHTBLUE = 9; static const unsigned short LIGHTGREEN = 10; static const unsigned short LIGHTCYAN = 11; static const unsigned short LIGHTRED = 12; static const unsigned short LIGHTMAGENTA = 13; static const unsigned short YELLOW = 14; static const unsigned short WHITE = 15; /* Special attributes */ static const unsigned short UNDERLINE = 64; static const unsigned short BLINK = 128; private: inline void setColor(unsigned short c) { attributes=0; if (c & UNDERLINE) attributes=UNDERLINE_ATTR; else if (c & BLINK) attributes=BLINK_ATTR; else if (c>=BRILLO_MIN) attributes=BRILLO_ATTR; foreground=ansicolors[c & 15]; /* Eliminamos los atributos */ } /* Color codes */ static const short ansicolors[16]; /* Special attributes for letters */ static const unsigned short UNDERLINE_ATTR = 4; static const unsigned short BLINK_ATTR = 5; static const unsigned short BRILLO_ATTR = 1; /* Bright colors start on 9th color */ static const unsigned short BRILLO_MIN = 9; unsigned short foreground; short background; unsigned short attributes; }; inline std::ostream& endColor(std::ostream &s) { return s<<"\033[00m"; } const short ccolor::ansicolors[16]= {30, 34, 32, 36, 31, 35, 33, 37, 0, 34, 32, 36, 31, 35, 33, 37}; |
Hacemos lo mismo que en C, utilizar los códigos ANSI para representar colores en la terminal, aunque esta vez lo pasamos vía streams, por eso tenemos el operator::CODECOLORER_BLOCK_2::
Con esto sacaremos el texto «Hola mundo!» en amarillo, utilizaremos endColor cuando queramos volver a escribir en el mismo color inicial de la terminal (no seguir escribiendo en nuestros colores) y si queremos algo más complicado podemos hacer:
1 2 3 4 5 | int main(int argc, char *argv[]) { cout << ccolor(ccolor::YELLOW | ccolor::UNDERLINE, ccolor::BLUE)<< "Hola mundo!"<<endColor<<endl; return 0; } |
donde asignamos el atributo UNDERLINE (subrayado) al texto que saldrá por la terminal, además, le pondremos fondo azul. Si miráis la clase ccolor, cuando la construimos con dos parámetros, podremos definir el color de primer plano y el de fondo.
Pingback: Bitacoras.com /
This is a great inspiring article. I am pretty much pleased with your good work. You put really very helpful information. The Fall Guy Red Bomber Jacket
Revitalize your senses at 출장마사지.shop in Changwon, the go-to destination for business trip massages in 2024. Our skilled therapists are dedicated to providing a soothing experience tailored to your needs. With regular training, our managers ensure a level of service that keeps clients coming back for more. Experience the best in relaxation and make your reservation today.