Add setting "status_on_all_monitors"

src/dwm.c

@@ -741,9 +741,11 @@ drawbar(Monitor *m)
 		stw = getsystraywidth();
 
 	/* draw status first so it can be overdrawn by tags later */
-	drw_setscheme(drw, scheme[SchemeNorm]);
-	tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
-	drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
+	if (m == selmon || settings_get_status_on_all_monitors()) {
+		drw_setscheme(drw, scheme[SchemeNorm]);
+		tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
+		drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
+	}
 
 	resizebarwin(m);
 	for (c = m->clients; c; c = c->next) {
@@ -783,10 +785,9 @@ drawbar(Monitor *m)
 void
 drawbars(void)
 {
-	Monitor *m;
-
-	for (m = mons; m; m = m->next)
+	for (Monitor *m = mons; m; m = m->next) {
 		drawbar(m);
+	}
 }
 
 void
@@ -2186,8 +2187,10 @@ updatestatus(void)
 		strcpy(stext, "polytreewm-"VERSION);
 	}
 
-	for (Monitor *m = mons; m; m = m->next) {
-		drawbar(m);
+	if (settings_get_status_on_all_monitors()) {
+		drawbars();
+	} else {
+		drawbar(selmon);
 	}
 
 	updatesystray();

src/settings.c

@@ -23,6 +23,7 @@ static bool respect_resize_hints_in_floating_layout = false;
 static bool show_bar_by_default = true;
 static bool show_bar_per_tag = false;
 static unsigned int snap_distance = 32;
+static bool status_on_all_monitors = false;
 static bool swallow_floating = false;
 
 int settings_get_border_width()
@@ -162,6 +163,17 @@ void settings_set_snap_distance(unsigned int new_snap_distance)
 	snap_distance = new_snap_distance;
 }
 
+bool settings_get_status_on_all_monitors()
+{
+	return status_on_all_monitors;
+}
+
+void settings_set_status_on_all_monitors(bool new_status_on_all_monitors)
+{
+	status_on_all_monitors = new_status_on_all_monitors;
+	// TODO: notify WM to rearrange clients
+}
+
 bool settings_get_swallow_floating()
 {
 	return swallow_floating;

src/settings.h

@@ -46,6 +46,9 @@ void settings_set_show_bar_per_tag(bool new_show_bar_per_tag);
 unsigned int settings_get_snap_distance();
 void         settings_set_snap_distance(unsigned int new_snap_distance);
 
+bool settings_get_status_on_all_monitors();
+void settings_set_status_on_all_monitors(bool new_status_on_all_monitors);
+
 bool settings_get_swallow_floating();
 void settings_set_swallow_floating(bool new_swallow_floating);