From f999acff8fb732bea747ba9e64622de33dd52290 Mon Sep 17 00:00:00 2001
From: Raghuram Subramani <raghus2247@gmail.com>
Date: Tue, 8 Oct 2024 22:58:52 +0530
Subject: (patch): gaps.patch

---
 dwl.c | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

(limited to 'dwl.c')

diff --git a/dwl.c b/dwl.c
index 3262b0a..b71adcb 100644
--- a/dwl.c
+++ b/dwl.c
@@ -202,6 +202,7 @@ struct Monitor {
 	struct wlr_box w; /* window area, layout-relative */
 	struct wl_list layers[4]; /* LayerSurface.link */
 	const Layout *lt[2];
+	int gaps;
 	Pertag *pertag;
 	unsigned int seltags;
 	unsigned int sellt;
@@ -343,6 +344,7 @@ static void tagmon(const Arg *arg);
 static void tile(Monitor *m);
 static void togglefloating(const Arg *arg);
 static void togglefullscreen(const Arg *arg);
+static void togglegaps(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unlocksession(struct wl_listener *listener, void *data);
@@ -1037,6 +1039,8 @@ createmon(struct wl_listener *listener, void *data)
 
 	wlr_output_state_init(&state);
 	/* Initialize monitor state using configured rules */
+	m->gaps = gaps;
+
 	m->tagset[0] = m->tagset[1] = 1;
 	for (r = monrules; r < END(monrules); r++) {
 		if (!r->name || strstr(wlr_output->name, r->name)) {
@@ -2733,7 +2737,7 @@ tagmon(const Arg *arg)
 void
 tile(Monitor *m)
 {
-	unsigned int mw, my, ty;
+	unsigned int h, r, e = m->gaps, mw, my, ty;
 	int i, n = 0;
 	Client *c;
 
@@ -2742,23 +2746,30 @@ tile(Monitor *m)
 			n++;
 	if (n == 0)
 		return;
+	if (smartgaps == n)
+		e = 0;
 
 	if (n > m->nmaster)
-		mw = m->nmaster ? (int)roundf(m->w.width * m->mfact) : 0;
+		mw = m->nmaster ? (int)roundf((m->w.width + gappx*e) * m->mfact) : 0;
 	else
 		mw = m->w.width;
-	i = my = ty = 0;
+	i = 0;
+	my = ty = gappx*e;
 	wl_list_for_each(c, &clients, link) {
 		if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
 			continue;
 		if (i < m->nmaster) {
-			resize(c, (struct wlr_box){.x = m->w.x, .y = m->w.y + my, .width = mw,
-				.height = (m->w.height - my) / (MIN(n, m->nmaster) - i)}, 0);
-			my += c->geom.height;
+			r = MIN(n, m->nmaster) - i;
+			h = (m->w.height - my - gappx*e - gappx*e * (r - 1)) / r;
+			resize(c, (struct wlr_box){.x = m->w.x + gappx*e, .y = m->w.y + my,
+				.width = mw - 2*gappx*e, .height = h}, 0);
+			my += c->geom.height + gappx*e;
 		} else {
+			r = n - i;
+			h = (m->w.height - ty - gappx*e - gappx*e * (r - 1)) / r;
 			resize(c, (struct wlr_box){.x = m->w.x + mw, .y = m->w.y + ty,
-				.width = m->w.width - mw, .height = (m->w.height - ty) / (n - i)}, 0);
-			ty += c->geom.height;
+				.width = m->w.width - mw - gappx*e, .height = h}, 0);
+			ty += c->geom.height + gappx*e;
 		}
 		i++;
 	}
@@ -2781,6 +2792,13 @@ togglefullscreen(const Arg *arg)
 		setfullscreen(sel, !sel->isfullscreen);
 }
 
+void
+togglegaps(const Arg *arg)
+{
+	selmon->gaps = !selmon->gaps;
+	arrange(selmon);
+}
+
 void
 toggletag(const Arg *arg)
 {
-- 
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