Revert "Do not draw status bar" and previous commits

This reverts commits:

8cdaca193b
b18c865e7f
3edd3cd647

src/dwm.c

@@ -56,10 +56,7 @@
 #include "unit.h"
 #include "util.h"
 
-/**********
+/* macros */
- * macros *
- **********/
-
 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 #define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
 #define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
@@ -69,6 +66,7 @@
 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 #define WIDTH(X)                ((X)->w + 2 * (X)->bw)
 #define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
+#define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
 
 /*********
  * types *
@@ -129,6 +127,7 @@ typedef struct {
 typedef struct Bar {
 	int by;
 	int topbar;
+	Window barwin;
 	int bh;
 } *Bar;
 
@@ -137,6 +136,7 @@ struct Monitor {
 	Bar bar;
 
 	Pertag *pertag;
+	char ltsymbol[16];
 	int nmaster;
 	int num;
 	int mx, my, mw, mh;   /* screen size */
@@ -266,6 +266,7 @@ static Unit global_unit = NULL;
 static const char broken[] = "broken";
 static int screen;
 static int sw, sh;           /* X display screen geometry width, height */
+static int lrpad;            /* sum of left and right padding for text */
 static int (*xerrorxlib)(Display *, XErrorEvent *);
 static unsigned int numlockmask = 0;
 static void (*handler[LASTEvent]) (XEvent *) = {
@@ -274,6 +275,7 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[ConfigureRequest] = on_configure_request,
 	[ConfigureNotify] = on_configure_notify,
 	[DestroyNotify] = on_destroy_notify,
+	[Expose] = on_expose,
 	[FocusIn] = on_focus_in,
 	[KeyPress] = on_key_press,
 	[MappingNotify] = on_mapping_notify,
@@ -485,6 +487,14 @@ arrangemon(Monitor *m)
 		if (ISVISIBLE(client)) ++visible_clients;
 	}
 
+	layouts_symbol_func(
+		m->lt[m->sellt]->symbol_func,
+		m->ltsymbol,
+		sizeof(m->ltsymbol),
+		m->nmaster,
+		visible_clients
+	);
+
 	if (m->lt[m->sellt]->arrange)
 		m->lt[m->sellt]->arrange(m);
 	else {
@@ -594,7 +604,11 @@ cleanupmon(Monitor *mon)
 		UNIT_DELETE(mon->pertag->units[i]);
 	}
 	free(mon->pertag);
-	free(mon->bar);
+	{
+		XUnmapWindow(dpy, mon->bar->barwin);
+		XDestroyWindow(dpy, mon->bar->barwin);
+		free(mon->bar);
+	}
 	UNIT_DELETE(mon->unit);
 	free(mon);
 }
@@ -642,6 +656,14 @@ createmon(void)
 	m->lt[0] = &layouts[0];
 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 
+	layouts_symbol_func(
+		layouts[0].symbol_func,
+		m->ltsymbol,
+		sizeof(m->ltsymbol),
+		m->nmaster,
+		0
+	);
+
 	if (!(m->pertag = ecalloc(1, sizeof(Pertag)))) goto fail_without_pertag;
 
 	m->pertag->curtag = m->pertag->prevtag = 1;
@@ -744,6 +766,7 @@ focus(Client *c)
 		XDeleteProperty(dpy, root, atoms->netatom[NetActiveWindow]);
 	}
 	selmon->sel = c;
+	drawbars();
 }
 
 void
@@ -1177,6 +1200,8 @@ nametag(__attribute__((unused)) const Arg *arg) {
 			tags_rename(i, name);
 		}
 	}
+
+	drawbars();
 }
 
 void
@@ -1385,15 +1410,14 @@ restack(Monitor *m)
 	XEvent ev;
 	XWindowChanges wc;
 
+	drawbar(m);
 	if (!m->sel)
 		return;
 	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
 		XRaiseWindow(dpy, m->sel->win);
 	if (m->lt[m->sellt]->arrange) {
 		wc.stack_mode = Below;
-		// TODO: Learn what is sibling and what
+		wc.sibling = m->bar->barwin;
-		// is the following line responsible for.
-		// wc.sibling = m->bar->barwin;
 		for (c = m->stack; c; c = c->snext)
 			if (!c->isfloating && ISVISIBLE(c)) {
 				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
@@ -1540,8 +1564,18 @@ setlayout(const Arg *arg)
 		if (ISVISIBLE(client)) ++visible_clients;
 	}
 
+	layouts_symbol_func(
+		selmon->lt[selmon->sellt]->symbol_func,
+		selmon->ltsymbol,
+		sizeof(selmon->ltsymbol),
+		selmon->nmaster,
+		visible_clients
+	);
+
 	if (selmon->sel) {
 		arrange(selmon);
+	} else {
+		drawbar(selmon);
 	}
 }
 
@@ -1578,6 +1612,7 @@ setup(void)
 	drw = drw_create(dpy, screen, root, sw, sh);
 	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
 		die("no fonts could be loaded.");
+	lrpad = drw->fonts->h;
 	updategeom();
 	/* init atoms */
 	atoms = atoms_create(dpy);
@@ -1590,6 +1625,8 @@ setup(void)
 	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
 	for (unsigned int i = 0; i < LENGTH(colors); i++)
 		scheme[i] = drw_scm_create(drw, colors[i], 3);
+	/* init bars */
+	createbars();
 
 	/* supporting window for NetWMCheck */
 	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
@@ -2152,9 +2189,13 @@ wintomon(Window w)
 {
 	int x, y;
 	Client *c;
+	Monitor *m;
 
 	if (w == root && getrootptr(&x, &y))
 		return recttomon(x, y, 1, 1);
+	for (m = mons; m; m = m->next)
+		if (w == m->bar->barwin)
+			return m;
 	if ((c = wintoclient(w)))
 		return c->mon;
 	return selmon;

src/dwm/bar.c

@@ -1,6 +1,83 @@
 #ifndef _DWM_BAR_C
 #define _DWM_BAR_C
 
+void
+createbars(void)
+{
+	XClassHint ch = {"polytreewm", "polytreewm"};
+	XSetWindowAttributes wa = {
+		.override_redirect = True,
+		.background_pixmap = ParentRelative,
+		.event_mask = ButtonPressMask|ExposureMask
+	};
+
+	for (Monitor *m = mons; m; m = m->next) {
+		if (m->bar->barwin) continue;
+
+		m->bar->barwin = XCreateWindow(
+			dpy,
+			root,
+			m->wx,
+			m->bar->by,
+			m->ww,
+			m->bar->bh,
+			0,
+			DefaultDepth(dpy, screen),
+			CopyFromParent,
+			DefaultVisual(dpy, screen),
+			CWOverrideRedirect | CWBackPixmap | CWEventMask,
+			&wa
+		);
+
+		XDefineCursor(dpy, m->bar->barwin, cursor[CurNormal]->cursor);
+		XMapRaised(dpy, m->bar->barwin);
+		XSetClassHint(dpy, m->bar->barwin, &ch);
+	}
+}
+
+void
+drawbar(Monitor *m)
+{
+	int x, w, tw = 0;
+	unsigned int i, occ = 0, urg = 0;
+	Client *c;
+
+	for (c = m->clients; c; c = c->next) {
+		occ |= c->tags == 255 ? 0 : c->tags;
+		if (c->isurgent)
+			urg |= c->tags;
+	}
+	x = 0;
+	for (i = 0; i < TAGS_COUNT; i++) {
+		/* do not draw vacant tags */
+		if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i || tags_get(i)->has_custom_name))
+		continue;
+
+		w = TEXTW(tags_get(i)->name.cstr);
+		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
+		drw_text(drw, x, 0, w, m->bar->bh, lrpad / 2, tags_get(i)->name.cstr, urg & 1 << i);
+		x += w;
+	}
+	w = TEXTW(m->ltsymbol);
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	x = drw_text(drw, x, 0, w, m->bar->bh, lrpad / 2, m->ltsymbol, 0);
+
+	if ((w = m->ww - tw - x) > m->bar->bh) {
+		drw_setscheme(drw, scheme[SchemeNorm]);
+		drw_rect(drw, x, 0, w, m->bar->bh, 1, 1);
+	}
+
+	drw_map(drw, m->bar->barwin, 0, 0, m->ww, m->bar->bh);
+}
+
+void
+drawbars(void)
+{
+	for (Monitor *m = mons; m; m = m->next) {
+		drawbar(m);
+	}
+}
+
 void
 togglebar(const Arg *arg)
 {
@@ -15,6 +92,7 @@ updatebar(Monitor *m)
 	m->show_bar = unit_get_show_bar(m->pertag->units[m->pertag->curtag]);
 
 	updatebarpos(m);
+	XMoveResizeWindow(dpy, selmon->bar->barwin, selmon->wx, selmon->bar->by, selmon->ww, m->bar->bh);
 	arrange(m);
 }
 

src/dwm/bar.h

@@ -1,6 +1,9 @@
 #ifndef _DWM_BAR_H
 #define _DWM_BAR_H
 
+static void createbars(void);
+static void drawbar(Monitor *m);
+static void drawbars(void);
 static void togglebar(const Arg *arg);
 static void updatebarpos(Monitor *m);
 static void updatebar(Monitor *m);

src/dwm/handlers.c

@@ -121,6 +121,7 @@ on_configure_request(XEvent *e)
 void
 on_configure_notify(XEvent *e)
 {
+	Monitor *m;
 	XConfigureEvent *ev = &e->xconfigure;
 	int dirty;
 
@@ -130,6 +131,11 @@ on_configure_notify(XEvent *e)
 		sw = ev->width;
 		sh = ev->height;
 		if (updategeom() || dirty) {
+			createbars();
+			for (m = mons; m; m = m->next) {
+				drw_resize(drw, sw, m->bar->bh);
+				XMoveResizeWindow(dpy, m->bar->barwin, m->wx, m->bar->by, m->ww, m->bar->bh);
+			}
 			focus(NULL);
 			arrange(NULL);
 		}
@@ -150,6 +156,17 @@ on_destroy_notify(XEvent *e)
 	}
 }
 
+void
+on_expose(XEvent *e)
+{
+	Monitor *m;
+	XExposeEvent *ev = &e->xexpose;
+
+	if (ev->count == 0 && (m = wintomon(ev->window))) {
+		drawbar(m);
+	}
+}
+
 /* there are some broken focus acquiring clients needing extra handling */
 void
 on_focus_in(XEvent *e)
@@ -222,10 +239,13 @@ on_property_notify(XEvent *e)
 			break;
 		case XA_WM_HINTS:
 			updatewmhints(c);
+			drawbars();
 			break;
 		}
 		if (ev->atom == XA_WM_NAME || ev->atom == atoms->netatom[NetWMName]) {
 			updatetitle(c);
+			if (c == c->mon->sel)
+				drawbar(c->mon);
 		}
 		if (ev->atom == atoms->netatom[NetWMWindowType])
 			updatewindowtype(c);

src/dwm/handlers.h

@@ -6,6 +6,7 @@ static void on_client_message(XEvent *e);
 static void on_configure_notify(XEvent *e);
 static void on_configure_request(XEvent *e);
 static void on_destroy_notify(XEvent *e);
+static void on_expose(XEvent *e);
 static void on_focus_in(XEvent *e);
 static void on_key_press(XEvent *e);
 static void on_mapping_notify(XEvent *e);