swayfx/include/util.h
2018-11-18 13:49:30 -05:00

71 lines
1.7 KiB
C

#ifndef _SWAY_UTIL_H
#define _SWAY_UTIL_H
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <wlr/types/wlr_output_layout.h>
#include <xkbcommon/xkbcommon.h>
/**
* Wrap i into the range [0, max[
*/
int wrap(int i, int max);
/**
* Count number of digits in int
*/
int numlen(int n);
/**
* Get modifier mask from modifier name.
*
* Returns the modifer mask or 0 if the name isn't found.
*/
uint32_t get_modifier_mask_by_name(const char *name);
/**
* Get modifier name from modifier mask.
*
* Returns the modifier name or NULL if it isn't found.
*/
const char *get_modifier_name_by_mask(uint32_t modifier);
/**
* Get an array of modifier names from modifier_masks
*
* Populates the names array and return the number of names added.
*/
int get_modifier_names(const char **names, uint32_t modifier_masks);
/**
* Get the pid of a parent process given the pid of a child process.
*
* Returns the parent pid or NULL if the parent pid cannot be determined.
*/
pid_t get_parent_pid(pid_t pid);
/**
* Given a string that represents an RGB(A) color, return a uint32_t
* version of the color.
*/
uint32_t parse_color(const char *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);
enum wlr_direction opposite_direction(enum wlr_direction d);
#endif