X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/301b4e55912dc611bd941002b27c72f17fcc5b39..d9c24564d2f46312a9ed94539e0299a9859e87d9:/dmenu.c?ds=sidebyside

diff --git a/dmenu.c b/dmenu.c
index 5f81d25..2cc2cad 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -1,133 +1,134 @@
 /* See LICENSE file for copyright and license details. */
 #include <ctype.h>
 #include <locale.h>
-#include <stdarg.h>
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <X11/keysym.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
-#include <X11/keysym.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
+#include <draw.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 */
+#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
+#define MIN(a, b)               ((a) < (b) ? (a) : (b))
+#define MAX(a, b)               ((a) > (b) ? (a) : (b))
+#define IS_UTF8_1ST_CHAR(c)     ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
 
 typedef struct Item Item;
 struct Item {
-	Item *next;		/* traverses all items */
-	Item *left, *right;	/* traverses items matching current search pattern */
 	char *text;
+	Item *next;         /* traverses all items */
+	Item *left, *right; /* traverses items matching current search pattern */
 };
 
 /* forward declarations */
-Item *appenditem(Item *i, Item *last);
-void calcoffsets(void);
-void cleanup(void);
-void drawmenu(void);
-void drawtext(const char *text, unsigned long col[ColLast]);
-void *emalloc(unsigned int size);
-void eprint(const char *errstr, ...);
-char *estrdup(const char *str);
-unsigned long getcolor(const char *colstr);
-Bool grabkeyboard(void);
-void initfont(const char *fontstr);
-void kpress(XKeyEvent * e);
-void match(char *pattern);
-void readstdin(void);
-void run(void);
-void setup(int x, int y, int w);
-char *cistrstr(const char *s, const char *sub);
-unsigned int textnw(const char *text, unsigned int len);
-unsigned int textw(const char *text);
+static void appenditem(Item *i, Item **list, Item **last);
+static void calcoffsetsh(void);
+static void calcoffsetsv(void);
+static char *cistrstr(const char *s, const char *sub);
+static void cleanup(void);
+static void dinput(void);
+static void drawmenu(void);
+static void drawmenuh(void);
+static void drawmenuv(void);
+static void grabkeyboard(void);
+static void kpress(XKeyEvent *e);
+static void match(char *pattern);
+static void readstdin(void);
+static void run(void);
+static void setup(void);
 
 #include "config.h"
 
 /* variables */
-char *font = FONT;
-char *maxname = NULL;
-char *normbg = NORMBGCOLOR;
-char *normfg = NORMFGCOLOR;
-char *prompt = NULL;
-char *selbg = SELBGCOLOR;
-char *selfg = SELFGCOLOR;
-char text[4096];
-int screen;
-int ret = 0;
-unsigned int cmdw = 0;
-unsigned int mw, mh;
-unsigned int promptw = 0;
-unsigned int nitem = 0;
-unsigned int numlockmask = 0;
-Bool running = True;
-Display *dpy;
-DC dc = {0};
-Item *allitems = NULL;	/* first of all items */
-Item *item = NULL;	/* first of pattern matching items */
-Item *sel = NULL;
-Item *next = NULL;
-Item *prev = NULL;
-Item *curr = NULL;
-Window root, win;
-int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
-char *(*fstrstr)(const char *, const char *) = strstr;
-
-Item *
-appenditem(Item *i, Item *last) {
-	if(!last)
-		item = i;
+static char **argp = NULL;
+static char *maxname = NULL;
+static char *prompt = NULL;
+static char text[4096];
+static int cmdw = 0;
+static int promptw = 0;
+static int screen;
+static unsigned int lines = 0;
+static unsigned int numlockmask = 0;
+static unsigned int mw, mh;
+static unsigned long normcol[ColLast];
+static unsigned long selcol[ColLast];
+static Bool topbar = True;
+static DC dc;
+static Display *dpy;
+static Item *allitems = NULL;  /* first of all items */
+static Item *item = NULL;      /* first of pattern matching items */
+static Item *sel = NULL;
+static Item *next = NULL;
+static Item *prev = NULL;
+static Item *curr = NULL;
+static Window win, root;
+static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
+static char *(*fstrstr)(const char *, const char *) = strstr;
+static void (*calcoffsets)(void) = calcoffsetsh;
+
+void
+appenditem(Item *i, Item **list, Item **last) {
+	if(!(*last))
+		*list = i;
 	else
-		last->right = i;
-	i->left = last;
+		(*last)->right = i;
+	i->left = *last;
 	i->right = NULL;
-	last = i;
-	nitem++;
-	return last;
+	*last = i;
 }
 
 void
-calcoffsets(void) {
-	unsigned int tw, w;
+calcoffsetsh(void) {
+	unsigned int x;
 
-	if(!curr)
-		return;
-	w = promptw + cmdw + 2 * SPACE;
-	for(next = curr; next; next=next->right) {
-		tw = textw(next->text);
-		if(tw > mw / 3)
-			tw = mw / 3;
-		w += tw;
-		if(w > mw)
+	x = promptw + cmdw + (2 * spaceitem);
+	for(next = curr; next; next = next->right)
+		if((x += MIN(textw(&dc, next->text), mw / 3)) > mw)
 			break;
-	}
-	w = promptw + cmdw + 2 * SPACE;
-	for(prev = curr; prev && prev->left; prev=prev->left) {
-		tw = textw(prev->left->text);
-		if(tw > mw / 3)
-			tw = mw / 3;
-		w += tw;
-		if(w > mw)
+	x = promptw + cmdw + (2 * spaceitem);
+	for(prev = curr; prev && prev->left; prev = prev->left)
+		if((x += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
 			break;
+}
+
+void
+calcoffsetsv(void) {
+	unsigned int i;
+
+	next = prev = curr;
+	for(i = 0; i < lines && next; i++)
+		next = next->right;
+	mh = (dc.font.height + 2) * (i + 1);
+	for(i = 0; i < lines && prev && prev->left; i++)
+		prev = prev->left;
+}
+
+char *
+cistrstr(const char *s, const char *sub) {
+	int c, csub;
+	unsigned int len;
+
+	if(!sub)
+		return (char *)s;
+	if((c = tolower(*sub++)) != '\0') {
+		len = strlen(sub);
+		do {
+			do {
+				if((csub = *s++) == '\0')
+					return NULL;
+			}
+			while(tolower(csub) != c);
+		}
+		while(strncasecmp(s, sub, len) != 0);
+		s--;
 	}
+	return (char *)s;
 }
 
 void
@@ -140,293 +141,182 @@ cleanup(void) {
 		free(allitems);
 		allitems = itm;
 	}
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
-	else
-		XFreeFont(dpy, dc.font.xfont);
-	XFreePixmap(dpy, dc.drawable);
-	XFreeGC(dpy, dc.gc);
+	cleanupdraw(&dc);
 	XDestroyWindow(dpy, win);
 	XUngrabKeyboard(dpy, CurrentTime);
+	XCloseDisplay(dpy);
 }
 
 void
-drawmenu(void) {
-	Item *i;
+dinput(void) {
+	cleanup();
+	argp[0] = "dinput";
+	argp[1] = text;
+	execvp("dinput", argp);
+	eprint("cannot exec dinput\n");
+}
 
+void
+drawmenu(void) {
 	dc.x = 0;
 	dc.y = 0;
 	dc.w = mw;
 	dc.h = mh;
-	drawtext(NULL, dc.norm);
+	drawtext(&dc, NULL, normcol, False);
+	dc.h = dc.font.height + 2;
+	dc.y = topbar ? 0 : mh - dc.h;
 	/* print prompt? */
-	if(promptw) {
+	if(prompt) {
 		dc.w = promptw;
-		drawtext(prompt, dc.sel);
+		drawtext(&dc, prompt, selcol, False);
+		dc.x += dc.w;
 	}
-	dc.x += promptw;
-	dc.w = mw - promptw;
+	dc.w = mw - dc.x;
 	/* print command */
-	if(cmdw && item)
+	if(cmdw && item && lines == 0)
 		dc.w = cmdw;
-	drawtext(text[0] ? text : NULL, dc.norm);
-	dc.x += cmdw;
-	if(curr) {
-		dc.w = SPACE;
-		drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
-		dc.x += dc.w;
-		/* determine maximum items */
-		for(i = curr; i != next; i=i->right) {
-			dc.w = textw(i->text);
-			if(dc.w > mw / 3)
-				dc.w = mw / 3;
-			drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
-			dc.x += dc.w;
-		}
-		dc.x = mw - SPACE;
-		dc.w = SPACE;
-		drawtext(next ? ">" : NULL, dc.norm);
-	}
+	drawtext(&dc, *text ? text : NULL, normcol, False);
+	if(lines > 0)
+		drawmenuv();
+	else if(curr)
+		drawmenuh();
 	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
-	XFlush(dpy);
 }
 
 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);
-}
-
-void *
-emalloc(unsigned int size) {
-	void *res = malloc(size);
+drawmenuh(void) {
+	Item *i;
 
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", size);
-	return res;
+	dc.x += cmdw;
+	dc.w = spaceitem;
+	drawtext(&dc, curr->left ? "<" : NULL, normcol, False);
+	dc.x += dc.w;
+	for(i = curr; i != next; i = i->right) {
+		dc.w = MIN(textw(&dc, i->text), mw / 3);
+		drawtext(&dc, i->text, (sel == i) ? selcol : normcol, False);
+		dc.x += dc.w;
+	}
+	dc.w = spaceitem;
+	dc.x = mw - dc.w;
+	drawtext(&dc, next ? ">" : NULL, normcol, False);
 }
 
 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;
-}
-
-unsigned long
-getcolor(const char *colstr) {
-	Colormap cmap = DefaultColormap(dpy, screen);
-	XColor color;
+drawmenuv(void) {
+	Item *i;
+	XWindowAttributes wa;
 
-	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
-		eprint("error, cannot allocate color '%s'\n", colstr);
-	return color.pixel;
+	dc.y = topbar ? dc.h : 0;
+	dc.w = mw - dc.x;
+	for(i = curr; i != next; i = i->right) {
+		drawtext(&dc, i->text, (sel == i) ? selcol : normcol, False);
+		dc.y += dc.h;
+	}
+	if(!XGetWindowAttributes(dpy, win, &wa))
+		eprint("cannot get window attributes");
+	XMoveResizeWindow(dpy, win, wa.x, wa.y + (topbar ? 0 : wa.height - mh), mw, mh);
 }
 
-Bool
+void
 grabkeyboard(void) {
 	unsigned int len;
 
 	for(len = 1000; len; len--) {
 		if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
-			== GrabSuccess)
+		== GrabSuccess)
 			break;
 		usleep(1000);
 	}
-	return len > 0;
-}
-
-void
-initfont(const char *fontstr) {
-	char *def, **missing;
-	int i, n;
-
-	if(!fontstr || fontstr[0] == '\0')
-		eprint("error, cannot load font: '%s'\n", fontstr);
-	missing = NULL;
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
-	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
-	if(missing)
-		XFreeStringList(missing);
-	if(dc.font.set) {
-		XFontSetExtents *font_extents;
-		XFontStruct **xfonts;
-		char **font_names;
-		dc.font.ascent = dc.font.descent = 0;
-		font_extents = XExtentsOfFontSet(dc.font.set);
-		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
-		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
-			if(dc.font.ascent < (*xfonts)->ascent)
-				dc.font.ascent = (*xfonts)->ascent;
-			if(dc.font.descent < (*xfonts)->descent)
-				dc.font.descent = (*xfonts)->descent;
-			xfonts++;
-		}
-	}
-	else {
-		if(dc.font.xfont)
-			XFreeFont(dpy, dc.font.xfont);
-		dc.font.xfont = NULL;
-		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
-		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
-			eprint("error, cannot load font: '%s'\n", fontstr);
-		dc.font.ascent = dc.font.xfont->ascent;
-		dc.font.descent = dc.font.xfont->descent;
-	}
-	dc.font.height = dc.font.ascent + dc.font.descent;
+	if(!len)
+		exit(EXIT_FAILURE);
 }
 
 void
-kpress(XKeyEvent * e) {
-	char buf[32];
-	int i, num;
-	unsigned int len;
+kpress(XKeyEvent *e) {
+	char buf[sizeof text];
+	int num;
+	unsigned int i, len;
 	KeySym ksym;
 
 	len = strlen(text);
-	buf[0] = 0;
-	num = XLookupString(e, buf, sizeof buf, &ksym, 0);
-	if(IsKeypadKey(ksym)) { 
-		if(ksym == XK_KP_Enter) {
-			ksym = XK_Return;
-		} else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
-			ksym = (ksym - XK_KP_0) + XK_0;
-		}
-	}
-	if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
-			|| IsMiscFunctionKey(ksym) || IsPFKey(ksym)
-			|| IsPrivateKeypadKey(ksym))
+	num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
+	if(ksym == XK_KP_Enter)
+		ksym = XK_Return;
+	else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
+		ksym = (ksym - XK_KP_0) + XK_0;
+	else if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
+	|| IsMiscFunctionKey(ksym) || IsPFKey(ksym)
+	|| IsPrivateKeypadKey(ksym))
 		return;
 	/* first check if a control mask is omitted */
 	if(e->state & ControlMask) {
-		switch (ksym) {
-		default:	/* ignore other control sequences */
+		switch(tolower(ksym)) {
+		default:
 			return;
-		case XK_bracketleft:
+		case XK_a:
+			ksym = XK_Home;
+			break;
+		case XK_b:
+			ksym = XK_Left;
+			break;
+		case XK_c:
 			ksym = XK_Escape;
 			break;
+		case XK_e:
+			ksym = XK_End;
+			break;
+		case XK_f:
+			ksym = XK_Right;
+			break;
 		case XK_h:
-		case XK_H:
 			ksym = XK_BackSpace;
 			break;
 		case XK_i:
-		case XK_I:
 			ksym = XK_Tab;
 			break;
 		case XK_j:
-		case XK_J:
+		case XK_m:
 			ksym = XK_Return;
 			break;
-		case XK_u:
-		case XK_U:
-			text[0] = 0;
-			match(text);
-			drawmenu();
-			return;
-		case XK_w:
-		case XK_W:
-			if(len) {
-				i = len - 1;
-				while(i >= 0 && text[i] == ' ')
-					text[i--] = 0;
-				while(i >= 0 && text[i] != ' ')
-					text[i--] = 0;
-				match(text);
-				drawmenu();
-			}
-			return;
-		}
-	}
-	if(CLEANMASK(e->state) & Mod1Mask) {
-		switch(ksym) {
-		default: return;
-		case XK_h:
-			ksym = XK_Left;
+		case XK_n:
+			ksym = XK_Down;
 			break;
-		case XK_l:
-			ksym = XK_Right;
+		case XK_p:
+			ksym = XK_Up;
 			break;
-		case XK_j:
-			ksym = XK_Next;
-			break;
-		case XK_k:
-			ksym = XK_Prior;
-			break;
-		case XK_g:
-			ksym = XK_Home;
+		case XK_u:
+			text[0] = '\0';
+			match(text);
 			break;
-		case XK_G:
-			ksym = XK_End;
+		case XK_w:
+			if(len == 0)
+				return;
+			i = len;
+			while(i-- > 0 && text[i] == ' ');
+			while(i-- > 0 && text[i] != ' ');
+			text[++i] = '\0';
+			match(text);
 			break;
 		}
 	}
 	switch(ksym) {
 	default:
+		num = MIN(num, sizeof text);
 		if(num && !iscntrl((int) buf[0])) {
-			buf[num] = 0;
-			if(len > 0)
-				strncat(text, buf, sizeof text);
-			else
-				strncpy(text, buf, sizeof text);
+			memcpy(text + len, buf, num + 1);
+			len += num;
 			match(text);
 		}
 		break;
 	case XK_BackSpace:
-		if(len) {
-			text[--len] = 0;
-			match(text);
-		}
+		if(len == 0)
+			return;
+		for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++);
+		len -= i;
+		text[len] = '\0';
+		match(text);
 		break;
 	case XK_End:
-		if(!item)
-			return;
 		while(next) {
 			sel = curr = next;
 			calcoffsets();
@@ -435,19 +325,16 @@ kpress(XKeyEvent * e) {
 			sel = sel->right;
 		break;
 	case XK_Escape:
-		ret = 1;
-		running = False;
-		break;
+		exit(EXIT_FAILURE);
 	case XK_Home:
-		if(!item)
-			return;
 		sel = curr = item;
 		calcoffsets();
 		break;
 	case XK_Left:
-		if(!(sel && sel->left))
+	case XK_Up:
+		if(!sel || !sel->left)
 			return;
-		sel=sel->left;
+		sel = sel->left;
 		if(sel->right == curr) {
 			curr = prev;
 			calcoffsets();
@@ -466,29 +353,25 @@ kpress(XKeyEvent * e) {
 		calcoffsets();
 		break;
 	case XK_Return:
-		if((e->state & ShiftMask) && text)
-			fprintf(stdout, "%s", text);
-		else if(sel)
-			fprintf(stdout, "%s", sel->text);
-		else if(text)
-			fprintf(stdout, "%s", text);
+		if(e->state & ShiftMask)
+			dinput();
+		fprintf(stdout, "%s", sel ? sel->text : text);
 		fflush(stdout);
-		running = False;
-		break;
+		exit(EXIT_SUCCESS);
 	case XK_Right:
-		if(!(sel && sel->right))
+	case XK_Down:
+		if(!sel || !sel->right)
 			return;
-		sel=sel->right;
+		sel = sel->right;
 		if(sel == next) {
 			curr = next;
 			calcoffsets();
 		}
 		break;
 	case XK_Tab:
-		if(!sel)
-			return;
-		strncpy(text, sel->text, sizeof text);
-		match(text);
+		if(sel)
+			strncpy(text, sel->text, sizeof text);
+		dinput();
 		break;
 	}
 	drawmenu();
@@ -497,38 +380,61 @@ kpress(XKeyEvent * e) {
 void
 match(char *pattern) {
 	unsigned int plen;
-	Item *i, *j;
+	Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 
 	if(!pattern)
 		return;
 	plen = strlen(pattern);
-	item = j = NULL;
-	nitem = 0;
+	item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 	for(i = allitems; i; i = i->next)
-		if(!fstrncmp(pattern, i->text, plen)
-				|| fstrstr(i->text, pattern))
-			j = appenditem(i, j);
+		if(!fstrncmp(pattern, i->text, plen + 1))
+			appenditem(i, &lexact, &exactend);
+		else if(!fstrncmp(pattern, i->text, plen))
+			appenditem(i, &lprefix, &prefixend);
+		else if(fstrstr(i->text, pattern))
+			appenditem(i, &lsubstr, &substrend);
+	if(lexact) {
+		item = lexact;
+		itemend = exactend;
+	}
+	if(lprefix) {
+		if(itemend) {
+			itemend->right = lprefix;
+			lprefix->left = itemend;
+		}
+		else
+			item = lprefix;
+		itemend = prefixend;
+	}
+	if(lsubstr) {
+		if(itemend) {
+			itemend->right = lsubstr;
+			lsubstr->left = itemend;
+		}
+		else
+			item = lsubstr;
+	}
 	curr = prev = next = sel = item;
 	calcoffsets();
 }
 
 void
 readstdin(void) {
-	char *p, buf[1024];
+	char *p, buf[sizeof text];
 	unsigned int len = 0, max = 0;
 	Item *i, *new;
 
-	i = 0;
+	i = NULL;
 	while(fgets(buf, sizeof buf, stdin)) {
 		len = strlen(buf);
-		if (buf[len - 1] == '\n')
-			buf[len - 1] = 0;
-		p = estrdup(buf);
-		if(max < len) {
+		if(buf[len-1] == '\n')
+			buf[--len] = '\0';
+		if(!(p = strdup(buf)))
+			eprint("cannot strdup %u bytes\n", len);
+		if((max = MAX(max, len)) == len)
 			maxname = p;
-			max = len;
-		}
-		new = emalloc(sizeof(Item));
+		if(!(new = malloc(sizeof *new)))
+			eprint("cannot malloc %u bytes\n", sizeof *new);
 		new->next = new->left = new->right = NULL;
 		new->text = p;
 		if(!i)
@@ -544,10 +450,9 @@ run(void) {
 	XEvent ev;
 
 	/* main event loop */
-	while(running && !XNextEvent(dpy, &ev))
-		switch (ev.type) {
-		default:	/* ignore all crap */
-			break;
+	XSync(dpy, False);
+	while(!XNextEvent(dpy, &ev))
+		switch(ev.type) {
 		case KeyPress:
 			kpress(&ev.xkey);
 			break;
@@ -555,12 +460,21 @@ run(void) {
 			if(ev.xexpose.count == 0)
 				drawmenu();
 			break;
+		case VisibilityNotify:
+			if(ev.xvisibility.state != VisibilityUnobscured)
+				XRaiseWindow(dpy, win);
+			break;
 		}
+	exit(EXIT_FAILURE);
 }
 
 void
-setup(int x, int y, int w) {
-	unsigned int i, j;
+setup(void) {
+	int i, j, x, y;
+#if XINERAMA
+	int n;
+	XineramaScreenInfo *info = NULL;
+#endif
 	XModifierKeymap *modmap;
 	XSetWindowAttributes wa;
 
@@ -574,147 +488,120 @@ setup(int x, int y, int w) {
 		}
 	XFreeModifiermap(modmap);
 
-	/* style */
-	dc.norm[ColBG] = getcolor(normbg);
-	dc.norm[ColFG] = getcolor(normfg);
-	dc.sel[ColBG] = getcolor(selbg);
-	dc.sel[ColFG] = getcolor(selfg);
-	initfont(font);
+	dc.dpy = dpy;
+	normcol[ColBG] = getcolor(&dc, normbgcolor);
+	normcol[ColFG] = getcolor(&dc, normfgcolor);
+	selcol[ColBG] = getcolor(&dc, selbgcolor);
+	selcol[ColFG] = getcolor(&dc, selfgcolor);
+	initfont(&dc, font);
 
 	/* menu window */
-	wa.override_redirect = 1;
+	wa.override_redirect = True;
 	wa.background_pixmap = ParentRelative;
-	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
-	mw = w ? w : DisplayWidth(dpy, screen);
-	mh = dc.font.height + 2;
+	wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+
+	/* menu window geometry */
+	mh = (dc.font.height + 2) * (lines + 1);
+#if XINERAMA
+	if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
+		i = 0;
+		if(n > 1) {
+			int di;
+			unsigned int dui;
+			Window dummy;
+			if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
+				for(i = 0; i < n; i++)
+					if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
+						break;
+		}
+		x = info[i].x_org;
+		y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
+		mw = info[i].width;
+		XFree(info);
+	}
+	else
+#endif
+	{
+		x = 0;
+		y = topbar ? 0 : mh - DisplayHeight(dpy, screen);
+		mw = DisplayWidth(dpy, screen);
+	}
+
 	win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
 			DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 
-	/* pixmap */
-	dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, root, 0, 0);
-	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
-	if(!dc.font.set)
-		XSetFont(dpy, dc.gc, dc.font.xfont->fid);
+	setupdraw(&dc, win);
 	if(maxname)
-		cmdw = textw(maxname);
-	if(cmdw > mw / 3)
-		cmdw = mw / 3;
+		cmdw = MIN(textw(&dc, maxname), mw / 3);
 	if(prompt)
-		promptw = textw(prompt);
-	if(promptw > mw / 5)
-		promptw = mw / 5;
-	text[0] = 0;
+		promptw = MIN(textw(&dc, prompt), mw / 5);
+	text[0] = '\0';
 	match(text);
 	XMapRaised(dpy, win);
 }
 
-char *
-cistrstr(const char *s, const char *sub) {
-	int c, csub;
-	unsigned int len;
-
-	if(!sub)
-		return (char *)s;
-	if((c = *sub++) != 0) {
-		c = tolower(c);
-		len = strlen(sub);
-		do {
-			do {
-				if((csub = *s++) == 0)
-					return (NULL);
-			}
-			while(tolower(csub) != c);
-		}
-		while(strncasecmp(s, sub, len) != 0);
-		s--;
-	}
-	return (char *)s;
-}
-
-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);
-}
-
-unsigned int
-textw(const char *text) {
-	return textnw(text, strlen(text)) + dc.font.height;
-}
-
 int
 main(int argc, char *argv[]) {
-	int x = 0, y = 0, w = 0;
 	unsigned int i;
 
 	/* command line args */
+	progname = "dmenu";
 	for(i = 1; i < argc; i++)
 		if(!strcmp(argv[i], "-i")) {
 			fstrncmp = strncasecmp;
 			fstrstr = cistrstr;
 		}
+		else if(!strcmp(argv[i], "-b"))
+			topbar = False;
+		else if(!strcmp(argv[i], "-l")) {
+			if(++i < argc) lines = atoi(argv[i]);
+			if(lines > 0)
+				calcoffsets = calcoffsetsv;
+		}
 		else if(!strcmp(argv[i], "-fn")) {
 			if(++i < argc) font = argv[i];
 		}
 		else if(!strcmp(argv[i], "-nb")) {
-			if(++i < argc) normbg = argv[i];
+			if(++i < argc) normbgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-nf")) {
-			if(++i < argc) normfg = argv[i];
+			if(++i < argc) normfgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-p")) {
 			if(++i < argc) prompt = argv[i];
 		}
 		else if(!strcmp(argv[i], "-sb")) {
-			if(++i < argc) selbg = argv[i];
+			if(++i < argc) selbgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-sf")) {
-			if(++i < argc) selfg = argv[i];
-		}
-		else if(!strcmp(argv[i], "-x")) {
-			if(++i < argc) x = atoi(argv[i]);
+			if(++i < argc) selfgcolor = argv[i];
 		}
-		else if(!strcmp(argv[i], "-y")) {
-			if(++i < argc) y = atoi(argv[i]);
+		else if(!strcmp(argv[i], "-v")) {
+			printf("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
+			exit(EXIT_SUCCESS);
 		}
-		else if(!strcmp(argv[i], "-w")) {
-			if(++i < argc) w = atoi(argv[i]);
+		else {
+			fputs("usage: dmenu [-i] [-b] [-l <lines>] [-fn <font>] [-nb <color>]\n"
+			      "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n", stderr);
+			exit(EXIT_FAILURE);
 		}
-		else if(!strcmp(argv[i], "-v"))
-			eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
-		else
-			eprint("usage: dmenu [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
-			       "             [-p <prompt>] [-sb <color>] [-sf <color>]\n"
-			       "             [-x <x>] [-y <y>] [-w <w>] [-v]\n");
-	setlocale(LC_CTYPE, "");
-	dpy = XOpenDisplay(0);
-	if(!dpy)
-		eprint("dmenu: cannot open display\n");
+	if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+		fprintf(stderr, "dmenu: warning: no locale support\n");
+	if(!(dpy = XOpenDisplay(NULL)))
+		eprint("cannot open display\n");
+	if(atexit(&cleanup) != 0)
+		eprint("cannot register cleanup\n");
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
+	if(!(argp = malloc(sizeof *argp * (argc+2))))
+		eprint("cannot malloc %u bytes\n", sizeof *argp * (argc+2));
+	memcpy(argp + 2, argv + 1, sizeof *argp * argc);
 
-	if(isatty(STDIN_FILENO)) {
-		readstdin();
-		running = grabkeyboard();
-	}
-	else { /* prevent keypress loss */
-		running = grabkeyboard();
-		readstdin();
-	}
-
-	setup(x, y, w);
-	drawmenu();
-	XSync(dpy, False);
+	readstdin();
+	grabkeyboard();
+	setup();
 	run();
-	cleanup();
-	XCloseDisplay(dpy);
-	return ret;
+	return 0;
 }