No more needed to use -i to disable icon padding

Now xmenu detects if a menu has an icon, and if it doesn't have, the
menu will not have the gaps fgor icons, making the -i flag unecessary
to disable the padding.   The -i option is still necessary, however,
to speed up xmenu loading, since it disables imlib2 initialization
routines.

xmenu.c

@@ -467,6 +467,7 @@ allocmenu(struct Menu *parent, struct Item *list, unsigned level)
 	menu->y = 0;    /* calculated by setupmenu() */
 	menu->level = level;
 	menu->drawn = 0;
+	menu->hasicon = 0;
 
 	swa.override_redirect = (wflag) ? False : True;
 	swa.background_pixel = dc.normal[ColorBG].pixel;
@@ -541,6 +542,9 @@ buildmenutree(unsigned level, const char *label, const char *output, char *file)
 		curritem->prev = NULL;
 	}
 
+	if (curritem->file)
+		prevmenu->hasicon = 1;
+
 	return rootmenu;
 }
 
@@ -718,7 +722,7 @@ setupitems(struct Menu *menu)
 		 * padding appears 3 times: before the label and around the triangle.
 		 */
 		itemwidth = textwidth + config.triangle_width + config.horzpadding * 3;
-		itemwidth += (iflag) ? 0 : config.iconsize + config.horzpadding;
+		itemwidth += (iflag || !menu->hasicon) ? 0 : config.iconsize + config.horzpadding;
 		menu->w = MAX(menu->w, itemwidth);
 	}
 }
@@ -902,7 +906,7 @@ drawitems(struct Menu *menu)
 
 			/* draw text */
 			x = config.horzpadding;
-			x += (iflag) ? 0 : config.horzpadding + config.iconsize;
+			x += (iflag || !menu->hasicon) ? 0 : config.horzpadding + config.iconsize;
 			dsel = XftDrawCreate(dpy, item->sel, visual, colormap);
 			dunsel = XftDrawCreate(dpy, item->unsel, visual, colormap);
 			XSetForeground(dpy, dc.gc, dc.selected[ColorFG].pixel);

xmenu.h

@@ -84,6 +84,7 @@ struct Menu {
 	struct Item *list;      /* list of items contained by the menu */
 	struct Item *selected;  /* item currently selected in the menu */
 	int x, y, w, h;         /* menu geometry */
+	int hasicon;            /* whether the menu has item with icons */
 	int drawn;              /* whether the menu was already drawn */
 	unsigned level;         /* menu level relative to root */
 	Window win;             /* menu window to map on the screen */