Major refactoring in preparation for bar modules

patch/bar_statusbutton.c

@@ -0,0 +1,21 @@
+int
+width_stbutton(Monitor *m, int max_width)
+{
+	return TEXTW(buttonbar);
+}
+
+int
+draw_stbutton(Monitor *m, int x, int w)
+{
+	#if BAR_PANGO_PATCH
+	return drw_text(drw, x, 0, w, bh, lrpad / 2, buttonbar, 0, False);
+	#else
+	return drw_text(drw, x, 0, w, bh, lrpad / 2, buttonbar, 0);
+	#endif // BAR_PANGO_PATCH
+}
+
+int
+click_stbutton(Monitor *m, Arg *arg, int rel_x, int rel_y, int rel_w, int rel_h)
+{
+	return ClkButton;
+}