em/dmenu
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micromizing dmenu step 1

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This commit is contained in:
Anselm R. Garbe 2007-09-16 20:14:09 +02:00
parent b97783b07f
commit 06ae894434
6 changed files with 149 additions and 152 deletions
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6
Makefile
View File

@ -3,7 +3,7 @@
include config.mk
SRC = draw.c main.c util.c
SRC = dmenu.c
OBJ = ${SRC:.c=.o}
all: options dmenu
@ -18,7 +18,7 @@ options:
@echo CC $<
@${CC} -c ${CFLAGS} $<
${OBJ}: dmenu.h config.mk
${OBJ}: config.h config.mk
dmenu: ${OBJ}
@echo CC -o $@
@ -31,7 +31,7 @@ clean:
dist: clean
@echo creating dist tarball
@mkdir -p dmenu-${VERSION}
@cp -R LICENSE Makefile README config.mk dmenu.1 dmenu.h dmenu_path ${SRC} dmenu-${VERSION}
@cp -R LICENSE Makefile README config.mk dmenu.1 config.h dmenu_path ${SRC} dmenu-${VERSION}
@tar -cf dmenu-${VERSION}.tar dmenu-${VERSION}
@gzip dmenu-${VERSION}.tar
@rm -rf dmenu-${VERSION}

10
config.h Normal file
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@ -0,0 +1,10 @@
/* See LICENSE file for copyright and license details. */
/* appearance */
#define FONT "-*-terminus-medium-r-*-*-12-*-*-*-*-*-iso10646-*"
#define NORMBGCOLOR "#000"
#define NORMFGCOLOR "#ccc"
#define SELBGCOLOR "#00f"
#define SELFGCOLOR "#fff"
/* next macro defines the space between menu items */
#define SPACE 30 /* px */

149
main.c → dmenu.c
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@ -1,16 +1,37 @@
/* See LICENSE file for copyright and license details. */
#include "dmenu.h"
#include <ctype.h>
#include <locale.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
/* macros */
#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
/* enums */
enum { ColFG, ColBG, ColLast };
/* typedefs */
typedef struct {
int x, y, w, h;
unsigned long norm[ColLast];
unsigned long sel[ColLast];
Drawable drawable;
GC gc;
struct {
XFontStruct *xfont;
XFontSet set;
int ascent;
int descent;
int height;
} font;
} DC; /* draw context */
typedef struct Item Item;
struct Item {
Item *next; /* traverses all items */
@ -18,8 +39,29 @@ struct Item {
char *text;
};
/* static */
/* forward declarations */
static void *emalloc(unsigned int size);
static void eprint(const char *errstr, ...);
static char *estrdup(const char *str);
static void drawtext(const char *text, unsigned long col[ColLast]);
static unsigned int textw(const char *text);
static unsigned int textnw(const char *text, unsigned int len);
static void calcoffsets(void);
static void drawmenu(void);
static Bool grabkeyboard(void);
static unsigned long getcolor(const char *colstr);
static void initfont(const char *fontstr);
static int strido(const char *text, const char *pattern);
static void match(char *pattern);
static void kpress(XKeyEvent * e);
static char *readstdin(void);
static void usage(void);
/* variables */
static int screen;
static Display *dpy;
static DC dc = {0};
static char text[4096];
static char *prompt = NULL;
static int mw, mh;
@ -38,6 +80,93 @@ static Item *curr = NULL;
static Window root;
static Window win;
#include "config.h"
static void *
emalloc(unsigned int size) {
void *res = malloc(size);
if(!res)
eprint("fatal: could not malloc() %u bytes\n", size);
return res;
}
static void
eprint(const char *errstr, ...) {
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
static char *
estrdup(const char *str) {
void *res = strdup(str);
if(!res)
eprint("fatal: could not malloc() %u bytes\n", strlen(str));
return res;
}
static void
drawtext(const char *text, unsigned long col[ColLast]) {
int x, y, w, h;
static char buf[256];
unsigned int len, olen;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = strlen(text);
if(len >= sizeof buf)
len = sizeof buf - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(buf, len)) > dc.w - h)
buf[--len] = 0;
if(len < olen) {
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
if(w > dc.w)
return; /* too long */
XSetForeground(dpy, dc.gc, col[ColFG]);
if(dc.font.set)
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
else
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
static unsigned int
textw(const char *text) {
return textnw(text, strlen(text)) + dc.font.height;
}
static unsigned int
textnw(const char *text, unsigned int len) {
XRectangle r;
if(dc.font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(dc.font.xfont, text, len);
}
static void
calcoffsets(void) {
unsigned int tw, w;
@ -119,7 +248,7 @@ grabkeyboard(void) {
}
static unsigned long
initcolor(const char *colstr) {
getcolor(const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen);
XColor color;
@ -435,12 +564,6 @@ usage(void) {
" [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
}
/* extern */
int screen;
Display *dpy;
DC dc = {0};
int
main(int argc, char *argv[]) {
Bool bottom = False;
@ -508,10 +631,10 @@ main(int argc, char *argv[]) {
}
XFreeModifiermap(modmap);
/* style */
dc.norm[ColBG] = initcolor(normbg);
dc.norm[ColFG] = initcolor(normfg);
dc.sel[ColBG] = initcolor(selbg);
dc.sel[ColFG] = initcolor(selfg);
dc.norm[ColBG] = getcolor(normbg);
dc.norm[ColFG] = getcolor(normfg);
dc.sel[ColBG] = getcolor(selbg);
dc.sel[ColFG] = getcolor(selfg);
initfont(font);
/* menu window */
wa.override_redirect = 1;

41
dmenu.h
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@ -1,41 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include <X11/Xlib.h>
#define FONT "-*-fixed-medium-r-normal-*-13-*-*-*-*-*-*-*"
#define NORMBGCOLOR "#eeeeee"
#define NORMFGCOLOR "#222222"
#define SELBGCOLOR "#006699"
#define SELFGCOLOR "#ffffff"
#define SPACE 30 /* px */
/* color */
enum { ColFG, ColBG, ColLast };
typedef struct {
int x, y, w, h;
unsigned long norm[ColLast];
unsigned long sel[ColLast];
Drawable drawable;
GC gc;
struct {
XFontStruct *xfont;
XFontSet set;
int ascent;
int descent;
int height;
} font;
} DC; /* draw context */
extern int screen;
extern Display *dpy;
extern DC dc; /* global drawing context */
/* draw.c */
void drawtext(const char *text, unsigned long col[ColLast]);
unsigned int textw(const char *text);
unsigned int textnw(const char *text, unsigned int len);
/* util.c */
void *emalloc(unsigned int size); /* allocates memory, exits on error */
void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
char *estrdup(const char *str); /* duplicates str, exits on allocation error */

61
draw.c
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@ -1,61 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dmenu.h"
#include <string.h>
/* extern */
void
drawtext(const char *text, unsigned long col[ColLast]) {
int x, y, w, h;
static char buf[256];
unsigned int len, olen;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = strlen(text);
if(len >= sizeof buf)
len = sizeof buf - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(buf, len)) > dc.w - h)
buf[--len] = 0;
if(len < olen) {
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
if(w > dc.w)
return; /* too long */
XSetForeground(dpy, dc.gc, col[ColFG]);
if(dc.font.set)
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
else
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
unsigned int
textw(const char *text) {
return textnw(text, strlen(text)) + dc.font.height;
}
unsigned int
textnw(const char *text, unsigned int len) {
XRectangle r;
if(dc.font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(dc.font.xfont, text, len);
}

34
util.c
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@ -1,34 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dmenu.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void *
emalloc(unsigned int size) {
void *res = malloc(size);
if(!res)
eprint("fatal: could not malloc() %u bytes\n", size);
return res;
}
void
eprint(const char *errstr, ...) {
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
char *
estrdup(const char *str) {
void *res = strdup(str);
if(!res)
eprint("fatal: could not malloc() %u bytes\n", strlen(str));
return res;
}