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dmenu/center.diff (view raw)

  1diff --git a/config.def.h b/config.def.h
  2index 1edb647..7ee3247 100644
  3--- a/config.def.h
  4+++ b/config.def.h
  5@@ -2,6 +2,7 @@
  6 /* Default settings; can be overriden by command line. */
  7 
  8 static int topbar = 1;                      /* -b  option; if 0, dmenu appears at bottom     */
  9+static int centered = 0;                    /* -c option; centers dmenu on screen */
 10 /* -fn option overrides fonts[0]; default X11 font or font set */
 11 static const char *fonts[] = {
 12 	"monospace:size=10"
 13diff --git a/dmenu.1 b/dmenu.1
 14index 323f93c..c036baa 100644
 15--- a/dmenu.1
 16+++ b/dmenu.1
 17@@ -40,6 +40,9 @@ which lists programs in the user's $PATH and runs the result in their $SHELL.
 18 .B \-b
 19 dmenu appears at the bottom of the screen.
 20 .TP
 21+.B \-c
 22+dmenu appears centered on the screen.
 23+.TP
 24 .B \-f
 25 dmenu grabs the keyboard before reading stdin if not reading from a tty. This
 26 is faster, but will lock up X until stdin reaches end\-of\-file.
 27diff --git a/dmenu.c b/dmenu.c
 28index 65f25ce..bc7d087 100644
 29--- a/dmenu.c
 30+++ b/dmenu.c
 31@@ -89,6 +89,15 @@ calcoffsets(void)
 32 			break;
 33 }
 34 
 35+static int
 36+max_textw(void)
 37+{
 38+	int len = 0;
 39+	for (struct item *item = items; item && item->text; item++)
 40+		len = MAX(TEXTW(item->text), len);
 41+	return len;
 42+}
 43+
 44 static void
 45 cleanup(void)
 46 {
 47@@ -611,6 +620,7 @@ setup(void)
 48 	bh = drw->fonts->h + 2;
 49 	lines = MAX(lines, 0);
 50 	mh = (lines + 1) * bh;
 51+	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 52 #ifdef XINERAMA
 53 	i = 0;
 54 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
 55@@ -637,9 +647,16 @@ setup(void)
 56 				if (INTERSECT(x, y, 1, 1, info[i]))
 57 					break;
 58 
 59-		x = info[i].x_org;
 60-		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
 61-		mw = info[i].width;
 62+		if (centered) {
 63+			mw = MIN(MAX(max_textw() + promptw, 100), info[i].width);
 64+			x = info[i].x_org + ((info[i].width  - mw) / 2);
 65+			y = info[i].y_org + ((info[i].height - mh) / 2);
 66+		} else {
 67+			x = info[i].x_org;
 68+			y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
 69+			mw = info[i].width;
 70+		}
 71+
 72 		XFree(info);
 73 	} else
 74 #endif
 75@@ -647,11 +664,17 @@ setup(void)
 76 		if (!XGetWindowAttributes(dpy, parentwin, &wa))
 77 			die("could not get embedding window attributes: 0x%lx",
 78 			    parentwin);
 79-		x = 0;
 80-		y = topbar ? 0 : wa.height - mh;
 81-		mw = wa.width;
 82+
 83+		if (centered) {
 84+			mw = MIN(MAX(max_textw() + promptw, 100), wa.width);
 85+			x = (wa.width  - mw) / 2;
 86+			y = (wa.height - mh) / 2;
 87+		} else {
 88+			x = 0;
 89+			y = topbar ? 0 : wa.height - mh;
 90+			mw = wa.width;
 91+		}
 92 	}
 93-	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 94 	inputw = MIN(inputw, mw/3);
 95 	match();
 96 
 97@@ -709,6 +732,8 @@ main(int argc, char *argv[])
 98 			topbar = 0;
 99 		else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
100 			fast = 1;
101+		else if (!strcmp(argv[i], "-c"))   /* centers dmenu on screen */
102+			centered = 1;
103 		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
104 			fstrncmp = strncasecmp;
105 			fstrstr = cistrstr;