From 60f2c0b7de50c7b680730a1a75922acb329ccf25 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Thu, 23 Apr 2020 23:55:29 -0500
Subject: [PATCH] draw window borders

Works with scaled/rotated displays too!
---
 README.md    |  2 +-
 config.def.h |  1 +
 dwl.c        | 18 ++++++++++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 8ec06b0..a7dfd1f 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ number of ways:
 - Features not yet implemented:
     - xdg-shell popups
     - Urgent/attention/focus-request
-    - Borders and selected/normal/urgent colors
+    - Normal/selected/urgent border colors
     - layer-shell
     - Statusbar support (built-in or external)
     - Damage tracking
diff --git a/config.def.h b/config.def.h
index 57cc6de..d445daa 100644
--- a/config.def.h
+++ b/config.def.h
@@ -2,6 +2,7 @@
 static const int sloppyfocus        = 1;  /* focus follows mouse */
 static const unsigned int borderpx  = 1;  /* border pixel of windows */
 static const float rootcolor[]      = {0.3, 0.3, 0.3, 1.0};
+static const float bordercolor[]    = {0.5, 0.5, 0.5, 1.0};
 
 /* tagging */
 static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
diff --git a/dwl.c b/dwl.c
index 80a3d49..5f24226 100644
--- a/dwl.c
+++ b/dwl.c
@@ -847,6 +847,24 @@ renderclients(Monitor *m, struct timespec *now)
 		if (!VISIBLEON(c, m))
 			continue;
 
+		double ox = c->x, oy = c->y;
+		wlr_output_layout_output_coords(output_layout, m->wlr_output,
+				&ox, &oy);
+		int w = c->xdg_surface->surface->current.width;
+		int h = c->xdg_surface->surface->current.height;
+		struct wlr_box borders[] = {
+			{ox, oy, w + 2 * c->bw, c->bw},             /* top */
+			{ox, oy + c->bw, c->bw, h},                 /* left */
+			{ox + c->bw + w, oy + c->bw, c->bw, h},     /* right */
+			{ox, oy + c->bw + h, w + 2 * c->bw, c->bw}, /* bottom */
+		};
+		int i;
+		for (i = 0; i < sizeof(borders) / sizeof(borders[0]); i++) {
+			scalebox(&borders[i], m->wlr_output->scale);
+			wlr_render_rect(drw, &borders[i], bordercolor,
+					m->wlr_output->transform_matrix);
+		}
+
 		struct render_data rdata = {
 			.output = m->wlr_output,
 			.when = now,