micromizing dmenu step 1

Makefile

@@ -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}

config.h

@@ -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 */

dmenu.h

@@ -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 */

draw.c

@@ -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);
-}

util.c

@@ -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;
-}