wmfs/src/util.h
2012-02-21 07:01:35 +01:00

100 lines
2.8 KiB
C

/*
* wmfs2 by Martin Duquesnoy <xorg62@gmail.com> { for(i = 2011; i < 2111; ++i) ©(i); }
* For license, see COPYING.
*/
#ifndef UTIL_H
#define UTIL_H
#include "wmfs.h"
#include <string.h>
/* Todo FREE_LIST(type, head, function_remove) */
#define FREE_LIST(type, head) \
do { \
struct type *Z; \
while(!SLIST_EMPTY(&head)) { \
Z = SLIST_FIRST(&head); \
SLIST_REMOVE_HEAD(&head, next); \
free(Z); /* function_remove(t)*/ \
} \
} while(/* CONSTCOND */ 0);
/* Insert at the end with SLIST */
#define SLIST_INSERT_TAIL(head, elem, field, prev) \
if(!prev) \
SLIST_INSERT_HEAD(head, elem, field); \
else \
SLIST_INSERT_AFTER(prev, elem, field);
/* t is Map or Unmap */
#define WIN_STATE(w, t) do { \
X##t##Subwindows(W->dpy, w); \
X##t##Window(W->dpy, w); \
} while( /* CONSTCOND */ 0);
#define ATOM(a) XInternAtom(W->dpy, (a), False)
#define LEN(x) (sizeof(x) / sizeof(*x))
#define FLAGINT(i) (1 << i)
#define FLAGAPPLY(f, b, m) (f |= (b ? m : 0))
#define ATOI(s) strtol(s, NULL, 10)
#define ABS(j) (j < 0 ? -j : j)
#define INAREA(i, j, a) ((i) >= (a).x && (i) <= (a).x + (a).w && (j) >= (a).y && (j) <= (a).y + (a).h)
#define GEOCMP(g1, g2) ((g1).x == (g2).x && (g1).y == (g2).y && (g1).w == (g2).w && (g1).h == (g2).h)
/*
* "#RRGGBB" -> 0xRRGGBB
*/
static inline Color
color_atoh(const char *col)
{
XColor xcolor;
if(!XAllocNamedColor(W->dpy, DefaultColormap(W->dpy, W->xscreen), col, &xcolor, &xcolor))
warnl("Error: cannot allocate color \"%s\".", col);
return xcolor.pixel;
}
static inline void
swap_ptr(void **x, void **y)
{
void *t = *x;
*x = *y;
*y = t;
}
static inline void
swap_int(int *x, int *y)
{
*y = *x ^ *y;
*x = *y ^ *x;
*y = *x ^ *y;
}
static inline enum position
str_to_position(char *str)
{
enum position i;
static const char index[PositionLast][8] = { "right", "left", "top", "bottom", "center" };
for(i = 0; i < PositionLast; ++i)
if(!strcmp(index[i], str))
return i;
return Right;
}
void *xmalloc(size_t nmemb, size_t size);
void *xcalloc(size_t nmemb, size_t size);
void *xrealloc(void *ptr, size_t nmemb, size_t size);
int xasprintf(char **strp, const char *fmt, ...);
char *xstrdup(const char *str);
pid_t spawn(const char *format, ...);
int parse_args(char *str, char delim, char end, int narg, char *args[]);
void uicb_spawn(Uicb cmd);
#endif /* UTIL_H */