Revision 67a9a9459633dcf11ca4c37dc224ce8f9a8945b6 authored by Drew DeVault on 13 October 2016, 02:42:23 UTC, committed by Drew DeVault on 13 October 2016, 02:42:23 UTC
This does two important things when using alpha:

1. At corners, borders don't double in opacity
2. Foreground elements (text) can be made transparent and you can see
fully through to the wallpaper
1 parent 56a7e5f
Raw File
util.h
#ifndef _SWAY_UTIL_H
#define _SWAY_UTIL_H

#include <stdint.h>
#include <unistd.h>
#include <wlc/wlc.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);

#endif
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