vanitygaps patch

3 files changed, 168 insertions, 11 deletions

diff --git a/README.md b/README.md
index d6384d7..413f2cc 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,5 @@ patches applied:
 
 [bar](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/bar)
 [hide vacant tags](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/hide_vacant_tags)
+[vanitygaps](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/vanitygaps)
 
diff --git a/config.def.h b/config.def.h
index 5d1dc2b..2dd1e08 100644
--- a/config.def.h
+++ b/config.def.h
@@ -6,7 +6,13 @@
 /* appearance */
 static const int sloppyfocus               = 1;  /* focus follows mouse */
 static const int bypass_surface_visibility = 0;  /* 1 means idle inhibitors will disable idle tracking even if it's surface isn't visible  */
+static const int smartgaps                 = 0;  /* 1 means no outer gap when there is only one window */
+static const int monoclegaps               = 0;  /* 1 means outer gaps in monocle layout */
 static const unsigned int borderpx         = 1;  /* border pixel of windows */
+static const unsigned int gappih           = 10; /* horiz inner gap between windows */
+static const unsigned int gappiv           = 10; /* vert inner gap between windows */
+static const unsigned int gappoh           = 10; /* horiz outer gap between windows and screen edge */
+static const unsigned int gappov           = 10; /* vert outer gap between windows and screen edge */
 static const int showbar                   = 1; /* 0 means no bar */
 static const int topbar                    = 1; /* 0 means bottom bar */
 static const char *fonts[]                 = {"monospace:size=10"};
@@ -140,6 +146,22 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_d,          incnmaster,     {.i = -1} },
 	{ MODKEY,                    XKB_KEY_h,          setmfact,       {.f = -0.05f} },
 	{ MODKEY,                    XKB_KEY_l,          setmfact,       {.f = +0.05f} },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_h,          incgaps,       {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_l,          incgaps,       {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_SHIFT,   XKB_KEY_H,      incogaps,      {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_SHIFT,   XKB_KEY_L,      incogaps,      {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_CTRL,    XKB_KEY_h,      incigaps,      {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_CTRL,    XKB_KEY_l,      incigaps,      {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_0,          togglegaps,     {0} },
+	{ MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_SHIFT,   XKB_KEY_parenright,defaultgaps,    {0} },
+	{ MODKEY,                    XKB_KEY_y,          incihgaps,     {.i = +1 } },
+	{ MODKEY,                    XKB_KEY_o,          incihgaps,     {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_CTRL,  XKB_KEY_y,          incivgaps,     {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_CTRL,  XKB_KEY_o,          incivgaps,     {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_y,          incohgaps,     {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_o,          incohgaps,     {.i = -1 } },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_Y,          incovgaps,     {.i = +1 } },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_O,          incovgaps,     {.i = -1 } },
 	{ MODKEY,                    XKB_KEY_Return,     zoom,           {0} },
 	{ MODKEY,                    XKB_KEY_Tab,        view,           {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_C,          killclient,     {0} },
diff --git a/dwl.c b/dwl.c
index cd8705d..00475f4 100644
--- a/dwl.c
+++ b/dwl.c
@@ -221,6 +221,10 @@ struct Monitor {
 	struct wlr_box w; /* window area, layout-relative */
 	struct wl_list layers[4]; /* LayerSurface.link */
 	const Layout *lt[2];
+	int gappih;           /* horizontal gap between windows */
+	int gappiv;           /* vertical gap between windows */
+	int gappoh;           /* horizontal outer gaps */
+	int gappov;           /* vertical outer gaps */
 	unsigned int seltags;
 	unsigned int sellt;
 	uint32_t tagset[2];
@@ -304,6 +308,7 @@ static void createpopup(struct wl_listener *listener, void *data);
 static void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint);
 static void cursorframe(struct wl_listener *listener, void *data);
 static void cursorwarptohint(void);
+static void defaultgaps(const Arg *arg);
 static void destroydecoration(struct wl_listener *listener, void *data);
 static void destroydragicon(struct wl_listener *listener, void *data);
 static void destroyidleinhibitor(struct wl_listener *listener, void *data);
@@ -326,6 +331,13 @@ static void fullscreennotify(struct wl_listener *listener, void *data);
 static void gpureset(struct wl_listener *listener, void *data);
 static void handlesig(int signo);
 static void incnmaster(const Arg *arg);
+static void incgaps(const Arg *arg);
+static void incigaps(const Arg *arg);
+static void incihgaps(const Arg *arg);
+static void incivgaps(const Arg *arg);
+static void incogaps(const Arg *arg);
+static void incohgaps(const Arg *arg);
+static void incovgaps(const Arg *arg);
 static void inputdevice(struct wl_listener *listener, void *data);
 static int keybinding(uint32_t mods, xkb_keysym_t sym);
 static void keypress(struct wl_listener *listener, void *data);
@@ -359,6 +371,7 @@ static void setcursorshape(struct wl_listener *listener, void *data);
 static void setfloating(Client *c, int floating);
 static void setfullscreen(Client *c, int fullscreen);
 static void setgamma(struct wl_listener *listener, void *data);
+static void setgaps(int oh, int ov, int ih, int iv);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setmon(Client *c, Monitor *m, uint32_t newtags);
@@ -374,6 +387,7 @@ static void tile(Monitor *m);
 static void togglebar(const Arg *arg);
 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);
@@ -457,6 +471,8 @@ static const struct wlr_buffer_impl buffer_impl = {
     .end_data_ptr_access = bufdataend,
 };
 
+static int enablegaps = 1;   /* enables gaps, used by togglegaps */
+
 #ifdef XWAYLAND
 static void activatex11(struct wl_listener *listener, void *data);
 static void associatex11(struct wl_listener *listener, void *data);
@@ -1156,6 +1172,11 @@ createmon(struct wl_listener *listener, void *data)
 	for (i = 0; i < LENGTH(m->layers); i++)
 		wl_list_init(&m->layers[i]);
 
+	m->gappih = gappih;
+	m->gappiv = gappiv;
+	m->gappoh = gappoh;
+	m->gappov = gappov;
+
 	wlr_output_state_init(&state);
 	/* Initialize monitor state using configured rules */
 	m->tagset[0] = m->tagset[1] = 1;
@@ -1346,6 +1367,12 @@ cursorwarptohint(void)
 }
 
 void
+defaultgaps(const Arg *arg)
+{
+	setgaps(gappoh, gappov, gappih, gappiv);
+}
+
+void
 destroydecoration(struct wl_listener *listener, void *data)
 {
 	Client *c = wl_container_of(listener, c, destroy_decoration);
@@ -1770,6 +1797,83 @@ incnmaster(const Arg *arg)
 }
 
 void
+incgaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh + arg->i,
+		selmon->gappov + arg->i,
+		selmon->gappih + arg->i,
+		selmon->gappiv + arg->i
+	);
+}
+
+void
+incigaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh,
+		selmon->gappov,
+		selmon->gappih + arg->i,
+		selmon->gappiv + arg->i
+	);
+}
+
+void
+incihgaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh,
+		selmon->gappov,
+		selmon->gappih + arg->i,
+		selmon->gappiv
+	);
+}
+
+void
+incivgaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh,
+		selmon->gappov,
+		selmon->gappih,
+		selmon->gappiv + arg->i
+	);
+}
+
+void
+incogaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh + arg->i,
+		selmon->gappov + arg->i,
+		selmon->gappih,
+		selmon->gappiv
+	);
+}
+
+void
+incohgaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh + arg->i,
+		selmon->gappov,
+		selmon->gappih,
+		selmon->gappiv
+	);
+}
+
+void
+incovgaps(const Arg *arg)
+{
+	setgaps(
+		selmon->gappoh,
+		selmon->gappov + arg->i,
+		selmon->gappih,
+		selmon->gappiv
+	);
+}
+
+void
 inputdevice(struct wl_listener *listener, void *data)
 {
 	/* This event is raised by the backend when a new input device becomes
@@ -2020,8 +2124,12 @@ monocle(Monitor *m)
 	wl_list_for_each(c, &clients, link) {
 		if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
 			continue;
-		resize(c, m->w, 0);
 		n++;
+		if (!monoclegaps)
+			resize(c, m->w, 0);
+		else
+			resize(c, (struct wlr_box){.x = m->w.x + gappoh, .y = m->w.y + gappov,
+				.width = m->w.width - 2 * gappoh, .height = m->w.height - 2 * gappov}, 0);
 	}
 	if (n)
 		snprintf(m->ltsymbol, LENGTH(m->ltsymbol), "[%d]", n);
@@ -2545,6 +2653,16 @@ setgamma(struct wl_listener *listener, void *data)
 }
 
 void
+setgaps(int oh, int ov, int ih, int iv)
+{
+	selmon->gappoh = MAX(oh, 0);
+	selmon->gappov = MAX(ov, 0);
+	selmon->gappih = MAX(ih, 0);
+	selmon->gappiv = MAX(iv, 0);
+	arrange(selmon);
+}
+
+void
 setlayout(const Arg *arg)
 {
 	if (!selmon)
@@ -2914,7 +3032,7 @@ tagmon(const Arg *arg)
 void
 tile(Monitor *m)
 {
-	unsigned int mw, my, ty;
+	unsigned int mw, my, ty, h, r, oe = enablegaps, ie = enablegaps;
 	int i, n = 0;
 	Client *c;
 
@@ -2924,22 +3042,31 @@ tile(Monitor *m)
 	if (n == 0)
 		return;
 
+	if (smartgaps == n) {
+		oe = 0; // outer gaps disabled
+	}
+
 	if (n > m->nmaster)
-		mw = m->nmaster ? (int)roundf(m->w.width * m->mfact) : 0;
+		mw = m->nmaster ? (int)roundf((m->w.width + m->gappiv*ie) * m->mfact) : 0;
 	else
-		mw = m->w.width;
-	i = my = ty = 0;
+		mw = m->w.width - 2*m->gappov*oe + m->gappiv*ie;
+	i = 0;
+	my = ty = m->gappoh*oe;
 	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 - m->gappoh*oe - m->gappih*ie * (r - 1)) / r;
+			resize(c, (struct wlr_box){.x = m->w.x + m->gappov*oe, .y = m->w.y + my,
+				.width = mw - m->gappiv*ie, .height = h}, 0);
+			my += c->geom.height + m->gappih*ie;
 		} else {
-			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;
+			r = n - i;
+			h = (m->w.height - ty - m->gappoh*oe - m->gappih*ie * (r - 1)) / r;
+			resize(c, (struct wlr_box){.x = m->w.x + mw + m->gappov*oe, .y = m->w.y + ty,
+				.width = m->w.width - mw - 2*m->gappov*oe, .height = h}, 0);
+			ty += c->geom.height + m->gappih*ie;
 		}
 		i++;
 	}
@@ -2971,6 +3098,13 @@ togglefullscreen(const Arg *arg)
 }
 
 void
+togglegaps(const Arg *arg)
+{
+	enablegaps = !enablegaps;
+	arrange(selmon);
+}
+
+void
 toggletag(const Arg *arg)
 {
 	uint32_t newtags;