tran_colr.c File Reference

#include <string.h>
#include <grass/display.h>
#include <grass/colors.h>
#include <grass/raster.h>
#include <grass/glocale.h>
#include "driver.h"

Include dependency graph for tran_colr.c:

Go to the source code of this file.

Functions
int	D_parse_color (const char *str, int none_acceptable)
	color option text to usable color number More...
int	D_translate_color (const char *str)
	color name to number More...
int	D_use_color (int color)
	draw with a color from D_parse_color More...
int	D_color_number_to_RGB (int color, int *r, int *g, int *b)
	get RGB values from color number More...
void	D_RGB_color (int red, int grn, int blu)

Function Documentation

D_color_number_to_RGB()

int D_color_number_to_RGB	(	int	color,
		int *	r,
		int *	g,
		int *	b
	)

get RGB values from color number

Translates the color number provided by D_parse_color into 0-255 RGB values.

Returns 1 if color can be used to draw (is good and isn't 'none'), 0 otherwise.

Parameters

color_number
red
green
blue

Returns

int

Definition at line 177 of file tran_colr.c.

D_parse_color()

int D_parse_color	(	const char *	str,
		int	none_acceptable
	)

color option text to usable color number

Converts or looks up the color provided in the string. Returns a color number usable by D_use_color. If the color does not exist exits with a fatal error and message. If the color is none and none_acceptable is not true exits with a fatal error and message.

Parameters

name_or_code
none_acceptable

Returns

int

Definition at line 101 of file tran_colr.c.

Referenced by D_erase(), and D_translate_color().

D_RGB_color()

void D_RGB_color	(	int	red,
		int	grn,
		int	blu
	)

Definition at line 211 of file tran_colr.c.

References COM_Color_RGB().

D_translate_color()

int D_translate_color

(

const char *

str

)

color name to number

Takes a color name in ascii and returns the color number for that color. Returns 0 if color is not known. The color number returned is for lines and text, not raster graphics.

Parameters

name

Returns

int

Definition at line 125 of file tran_colr.c.

References D_parse_color().

D_use_color()

int D_use_color

(

int

color

)

draw with a color from D_parse_color

Calls R_color or R_standard_color to use the color provided by D_parse_color. Returns 1 if color can be used to draw (is good and isn't none), 0 otherwise.

Parameters

color

Returns

int

Definition at line 141 of file tran_colr.c.

References COM_Standard_color(), and G_num_standard_colors().

Referenced by D_erase().