swayfx/include/util.h
Brian Ashworth 66dc33296c cmd_client_*: refactor duplicated code
This is the second in a series of commits to refactor the color handling
in sway. This removes the duplicated color parsing code in
sway/commands/client.c. Additionally, this combines the parsing of
colors to float arrays with that in sway/config.c and introduces a
color_to_rgba function in commom/util.c.

As an added bonus, this also makes it so non of the colors in a border
color class will be changed unless all of the colors specified are
valid. This ensures that an invalid command does not get partially
applied.
2019-12-28 10:07:25 +01:00

41 lines
1.1 KiB
C

#ifndef _SWAY_UTIL_H
#define _SWAY_UTIL_H
#include <stdint.h>
#include <stdbool.h>
#include <wayland-server-protocol.h>
/**
* Wrap i into the range [0, max[
*/
int wrap(int i, int max);
/**
* Given a string that represents an RGB(A) color, result will be set to a
* uint32_t version of the color, as long as it is valid. If it is invalid,
* then false will be returned and result will be untouched.
*/
bool parse_color(const char *color, uint32_t *result);
void color_to_rgba(float dest[static 4], uint32_t color);
/**
* Given a string that represents a boolean, return the boolean value. This
* function also takes in the current boolean value to support toggling. If
* toggling is not desired, pass in true for current so that toggling values
* get parsed as not true.
*/
bool parse_boolean(const char *boolean, bool current);
/**
* Given a string that represents a floating point value, return a float.
* Returns NAN on error.
*/
float parse_float(const char *value);
const char *sway_wl_output_subpixel_to_string(enum wl_output_subpixel subpixel);
bool sway_set_cloexec(int fd, bool cloexec);
#endif