GRASS GIS 7 Programmer's Manual
7.9.dev(2021)-e5379bbd7
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#include <string.h>
#include <grass/display.h>
#include <grass/colors.h>
#include <grass/raster.h>
#include <grass/glocale.h>
#include "driver.h"
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) |
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.
color_number | |
red | |
green | |
blue |
Definition at line 180 of file tran_colr.c.
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.
name_or_code | |
none_acceptable |
Definition at line 101 of file tran_colr.c.
Referenced by D_erase(), and D_translate_color().
void D_RGB_color | ( | int | red, |
int | grn, | ||
int | blu | ||
) |
Definition at line 214 of file tran_colr.c.
References COM_Color_RGB().
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.
name |
Definition at line 126 of file tran_colr.c.
References D_parse_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.
color |
Definition at line 143 of file tran_colr.c.
References COM_Standard_color(), and G_num_standard_colors().
Referenced by D_erase().