From dbe98ebfe07754606c16c475efc07089126fe700 Mon Sep 17 00:00:00 2001
From: pgrondek <pgrondek@gmail.com>
Date: Fri, 29 May 2020 11:02:22 +0200
Subject: [PATCH] Add fullgaps

---
 config.def.h |  4 ++++
 config.h     |  1 +
 dwm.c        | 31 ++++++++++++++++++++++---------
 3 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/config.def.h b/config.def.h
index 2d824d1..92ba526 100644
--- a/config.def.h
+++ b/config.def.h
@@ -2,6 +2,7 @@
 
 /* appearance */
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
+static const unsigned int gappx     = 5;        /* gaps between windows */
 static const unsigned int snap      = 32;       /* snap pixel */
 static const unsigned int systraypinning = 0;   /* 0: sloppy systray follows selected monitor, >0: pin systray to monitor X */
 static const unsigned int systrayspacing = 2;   /* systray spacing */
@@ -86,6 +87,9 @@ static Key keys[] = {
 	{ MODKEY|ShiftMask,             XK_0,      tag,            {.ui = ~0 } },
 	{ MODKEY,                       XK_comma,  focusmon,       {.i = -1 } },
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
+    { MODKEY,                       XK_minus,  setgaps,        {.i = -1 } },
+    { MODKEY,                       XK_equal,  setgaps,        {.i = +1 } },
+    { MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = 0  } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
 	TAGKEYS(                        XK_1,                      0)
diff --git a/config.h b/config.h
index 024e0ce..8f990c6 100644
--- a/config.h
+++ b/config.h
@@ -2,6 +2,7 @@
 
 /* appearance */
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
+static const unsigned int gappx     = 5;        /* gaps between windows */
 static const unsigned int snap      = 32;       /* snap pixel */
 static const unsigned int systraypinning = 0;   /* 0: sloppy systray follows selected monitor, >0: pin systray to monitor X */
 static const unsigned int systrayspacing = 2;   /* systray spacing */
diff --git a/dwm.c b/dwm.c
index 3e361fa..4d8c7a2 100644
--- a/dwm.c
+++ b/dwm.c
@@ -137,6 +137,7 @@ struct Monitor {
 	int by;               /* bar geometry */
 	int mx, my, mw, mh;   /* screen size */
 	int wx, wy, ww, wh;   /* window area  */
+    int gappx;            /* gaps between windows */
 	unsigned int seltags;
 	unsigned int sellt;
 	unsigned int tagset[2];
@@ -228,6 +229,7 @@ static void sendmon(Client *c, Monitor *m);
 static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
+static void setgaps(const Arg *arg);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
@@ -727,7 +729,8 @@ createmon(void)
 	m->nmaster = nmaster;
 	m->showbar = showbar;
 	m->topbar = topbar;
-	m->lt[0] = &layouts[0];
+    m->gappx = gappx;
+    m->lt[0] = &layouts[0];
 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
 	return m;
@@ -1676,6 +1679,16 @@ setfullscreen(Client *c, int fullscreen)
 	}
 }
 
+void
+setgaps(const Arg *arg)
+{
+	if ((arg->i == 0) || (selmon->gappx + arg->i < 0))
+		selmon->gappx = 0;
+	else
+		selmon->gappx += arg->i;
+	arrange(selmon);
+}
+
 void
 setlayout(const Arg *arg)
 {
@@ -1871,16 +1884,16 @@ tile(Monitor *m)
 	if (n > m->nmaster)
 		mw = m->nmaster ? m->ww * m->mfact : 0;
 	else
-		mw = m->ww;
-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+        mw = m->ww - m->gappx;
+    for (i = 0, my = ty = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
 		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
-			my += HEIGHT(c);
+            h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
+            resize(c, m->wx + m->gappx, m->wy + my, mw - (2*c->bw) - m->gappx, h - (2*c->bw), 0);
+            my += HEIGHT(c) + m->gappx;
 		} else {
-			h = (m->wh - ty) / (n - i);
-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
-			ty += HEIGHT(c);
+            h = (m->wh - ty) / (n - i) - m->gappx;
+            resize(c, m->wx + mw + m->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gappx, h - (2*c->bw), 0);
+            ty += HEIGHT(c) + m->gappx;
 		}
 }