path: root/dwm/patches/dwm-exresize-r1606.diff

diff --git a/config.def.h b/config.def.h
index 7fb4d82..959a119 100644
--- a/config.def.h
+++ b/config.def.h
@@ -88,6 +88,33 @@ static Key keys[] = {
 	TAGKEYS(                        XK_8,                      7)
 	TAGKEYS(                        XK_9,                      8)
 	{ MODKEY|ShiftMask,             XK_q,      quit,           {0} },
+
+	{ MODKEY,                       XK_KP_7,   explace,                {.ui = EX_NW }},
+	{ MODKEY,                       XK_KP_8,   explace,                {.ui = EX_N  }},
+	{ MODKEY,                       XK_KP_9,   explace,                {.ui = EX_NE }},
+	{ MODKEY,                       XK_KP_4,   explace,                {.ui = EX_W  }},
+	{ MODKEY,                       XK_KP_5,   explace,                {.ui = EX_C  }},
+	{ MODKEY,                       XK_KP_6,   explace,                {.ui = EX_E  }},
+	{ MODKEY,                       XK_KP_1,   explace,                {.ui = EX_SW }},
+	{ MODKEY,                       XK_KP_2,   explace,                {.ui = EX_S  }},
+	{ MODKEY,                       XK_KP_3,   explace,                {.ui = EX_SE }},
+
+	{ MODKEY|ShiftMask,             XK_KP_8,   exresize,               {.v = (int []){   0,  25 }}},
+	{ MODKEY|ShiftMask,             XK_KP_2,   exresize,               {.v = (int []){   0, -25 }}},
+	{ MODKEY|ShiftMask,             XK_KP_6,   exresize,               {.v = (int []){  25,   0 }}},
+	{ MODKEY|ShiftMask,             XK_KP_4,   exresize,               {.v = (int []){ -25,   0 }}},
+	{ MODKEY|ShiftMask,             XK_KP_5,   exresize,               {.v = (int []){  25,  25 }}},
+	{ MODKEY|ShiftMask|ControlMask, XK_KP_5,   exresize,               {.v = (int []){ -25, -25 }}},
+
+	{ MODKEY|ControlMask,           XK_KP_6,   togglehorizontalexpand, {.i = +1} },
+	{ MODKEY|ControlMask,           XK_KP_3,   togglehorizontalexpand, {.i =  0} },
+	{ MODKEY|ControlMask,           XK_KP_4,   togglehorizontalexpand, {.i = -1} },
+	{ MODKEY|ControlMask,           XK_KP_8,   toggleverticalexpand,   {.i = +1} },
+	{ MODKEY|ControlMask,           XK_KP_1,   toggleverticalexpand,   {.i =  0} },
+	{ MODKEY|ControlMask,           XK_KP_2,   toggleverticalexpand,   {.i = -1} },
+	{ MODKEY|ControlMask,           XK_KP_9,   togglemaximize,         {.i = -1} },
+	{ MODKEY|ControlMask,           XK_KP_7,   togglemaximize,         {.i = +1} },
+	{ MODKEY|ControlMask,           XK_KP_5,   togglemaximize,         {.i =  0} },
 };

 /* button definitions */
diff --git a/dwm.c b/dwm.c
index 4986b07..8fc0c57 100644
--- a/dwm.c
+++ b/dwm.c
@@ -89,11 +89,14 @@ struct Client {
 	char name[256];
 	float mina, maxa;
 	int x, y, w, h;
+	int sfx, sfy, sfw, sfh; /* stored float geometry, used on mode revert */
 	int oldx, oldy, oldw, oldh;
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 	int bw, oldbw;
 	unsigned int tags;
-	Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	unsigned char expandmask;
+	int expandx1, expandy1, expandx2, expandy2;
+	Bool wasfloating, isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
 	Client *next;
 	Client *snext;
 	Monitor *mon;
@@ -1132,8 +1135,14 @@ manage(Window w, XWindowAttributes *wa) {
 	updatewindowtype(c);
 	updatesizehints(c);
 	updatewmhints(c);
+	c->sfx = c->x;
+	c->sfy = c->y;
+	c->sfw = c->w;
+	c->sfh = c->h;
 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
 	grabbuttons(c, False);
+	c->wasfloating = False;
+	c->expandmask = 0;
 	if(!c->isfloating)
 		c->isfloating = c->oldstate = trans != None || c->isfixed;
 	if(c->isfloating)
@@ -1234,8 +1243,9 @@ movemouse(const Arg *arg) {
 		case MotionNotify:
 			nx = ocx + (ev.xmotion.x - x);
 			ny = ocy + (ev.xmotion.y - y);
-			if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
-			&& ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
+			if ((m = recttomon(nx, ny, c->w, c->h))) {
+				if (m != selmon)
+					sendmon(c, m);
 				if(abs(selmon->wx - nx) < snap)
 					nx = selmon->wx;
 				else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
@@ -1343,6 +1353,7 @@ resizeclient(Client *c, int x, int y, int w, int h) {
 	c->oldy = c->y; c->y = wc.y = y;
 	c->oldw = c->w; c->w = wc.width = w;
 	c->oldh = c->h; c->h = wc.height = h;
+	c->expandmask = 0;
 	wc.border_width = c->bw;
 	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
 	configure(c);
@@ -1379,9 +1390,9 @@ resizemouse(const Arg *arg) {
 		case MotionNotify:
 			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
 			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
-			if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
-			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
-			{
+			if ((m = recttomon(c->x, c->y, nw, nh))) {
+				if (m != selmon)
+					sendmon(c, m);
 				if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
 				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
 					togglefloating(NULL);
@@ -1463,6 +1474,7 @@ scan(void) {

 void
 sendmon(Client *c, Monitor *m) {
+	Monitor *oldm = selmon;
 	if(c->mon == m)
 		return;
 	unfocus(c, True);
@@ -1472,8 +1484,11 @@ sendmon(Client *c, Monitor *m) {
 	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
 	attach(c);
 	attachstack(c);
-	focus(NULL);
-	arrange(NULL);
+	if (oldm != m)
+		arrange(oldm);
+	arrange(m);
+	focus(c);
+	restack(m);
 }

 void
@@ -1549,8 +1564,18 @@ setfullscreen(Client *c, Bool fullscreen) {

 void
 setlayout(const Arg *arg) {
-	if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
+	if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) {
 		selmon->sellt ^= 1;
+		if (!selmon->lt[selmon->sellt]->arrange) {
+			for (Client *c = selmon->clients ; c ; c = c->next) {
+				if(!c->isfloating) {
+					/*restore last known float dimensions*/
+					resize(c, selmon->mx + c->sfx, selmon->my + c->sfy,
+					       c->sfw, c->sfh, False);
+				}
+			}
+		}
+	}
 	if(arg && arg->v)
 		selmon->lt[selmon->sellt] = (Layout *)arg->v;
 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
@@ -1732,9 +1757,19 @@ togglefloating(const Arg *arg) {
 	if(selmon->sel->isfullscreen) /* no support for fullscreen windows */
 		return;
 	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
-	if(selmon->sel->isfloating)
-		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
-		       selmon->sel->w, selmon->sel->h, False);
+	if(selmon->sel->isfloating) {
+		/*restore last known float dimensions*/
+		resize(selmon->sel, selmon->mx + selmon->sel->sfx, selmon->my + selmon->sel->sfy,
+		       selmon->sel->sfw, selmon->sel->sfh, False);
+	} else {
+		if (selmon->sel->isfullscreen)
+			setfullscreen(selmon->sel, False);
+		/*save last known float dimensions*/
+		selmon->sel->sfx = selmon->sel->x - selmon->mx;
+		selmon->sel->sfy = selmon->sel->y - selmon->my;
+		selmon->sel->sfw = selmon->sel->w;
+		selmon->sel->sfh = selmon->sel->h;
+	}
 	arrange(selmon);
 }

diff --git a/exresize.c b/exresize.c
new file mode 100644
index 0000000..2343ffe
--- /dev/null
+++ b/exresize.c
@@ -0,0 +1,195 @@
+#define EXPAND_LEFT  (1 << 0)
+#define EXPAND_RIGHT (1 << 2)
+#define EXPAND_UP    (1 << 4)
+#define EXPAND_DOWN  (1 << 6)
+
+#define IS_SET(q, w) ((q & w) != 0)
+#define IS_FORCED(q, w) IS_SET((q << 1), w)
+
+#define EXPANDALL       (EXPAND_LEFT | EXPAND_RIGHT | EXPAND_UP | EXPAND_DOWN)
+#define UNEXPAND       (EXPANDALL << 1) // Force all directions to 0
+#define FORCE_EXPANDALL ~0 // Force expand in all directions
+
+enum { EX_NW, EX_N, EX_NE, EX_W, EX_C, EX_E, EX_SW, EX_S, EX_SE };
+
+void expand(unsigned char mask);
+
+void togglemaximize(const Arg *arg);
+void toggleverticalexpand(const Arg *arg);
+void togglehorizontalexpand(const Arg *arg);
+void exresize(const Arg *arg);
+void explace(const Arg *arg);
+
+void
+exresize(const Arg *arg) {
+	Client *c;
+	int x, y, nx, ny, nw, nh;
+	c = selmon->sel;
+
+	if (!c || !arg) return;
+	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
+		togglefloating(NULL);
+	if (c->expandmask != 0)
+		expand(UNEXPAND);
+
+	x = ((int *)arg->v)[0];
+	y = ((int *)arg->v)[1];
+
+	nw = MIN(selmon->ww - c->bw*2, c->w + x);
+	nh = MIN(selmon->wh - c->bw*2, c->h + y);
+	nx = c->x - x/2;
+	ny = c->y - y/2;
+
+	if (!((abs(c->x + c->w/2 - (selmon->wx + selmon->ww/2)) < snap))) {
+		if ((nw == selmon->ww) ||
+				(nx < selmon->wx) ||
+				(abs(selmon->wx - c->x) < snap))
+			nx = selmon->wx;
+		else if ((nx+nw > (selmon->wx + selmon->ww)) ||
+				(abs((selmon->wx + selmon->ww) - (c->x + c->w)) < snap))
+			nx = (selmon->wx + selmon->ww) - nw - c->bw*2;
+    } else
+		nx = selmon->wx + selmon->ww/2 - nw/2;
+
+    if (!((abs(c->y + c->h/2 - (selmon->wy + selmon->wh/2)) < snap))) {
+
+		if ((nh == selmon->wh) ||
+				(ny < selmon->wy) ||
+				(abs(selmon->wy - c->y) < snap))
+			ny = selmon->wy;
+		else if ((ny+nh > (selmon->wy + selmon->wh)) ||
+				(abs((selmon->wy + selmon->wh) - (c->y + c->h)) < snap))
+			ny = (selmon->wy + selmon->wh) - nh - c->bw*2;
+	} else
+        ny = selmon->wy + selmon->wh/2 - nh/2;
+
+
+	resizeclient(c, nx, ny, MAX(nw, 32), MAX(nh, 32));
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
+}
+
+void
+explace(const Arg *arg) {
+	Client *c;
+	int nx, ny;
+
+	c = selmon->sel;
+	if (!c || (arg->ui >= 9)) return;
+	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
+		togglefloating(NULL);
+
+	nx = (arg->ui % 3) - 1;
+	ny = (arg->ui / 3) - 1;
+
+	if (nx < 0) nx = selmon->wx;
+	else if (nx > 0) nx = selmon->wx + selmon->ww - c->w - c->bw*2;
+	else nx = selmon->wx + selmon->ww/2 - c->w/2;
+
+	if (ny < 0) ny = selmon->wy;
+	else if (ny > 0) ny = selmon->wy + selmon->wh - c->h - c->bw*2;
+	else ny = selmon->wy + selmon->wh/2 - c->h/2;
+
+	resize(c, nx, ny, c->w, c->h, 0);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
+}
+
+int
+calculate_expand(unsigned char mask, unsigned char curmask,
+		unsigned char *newmask, unsigned char key,
+		int *reset_value, int new_reset_value,
+		int max_value, int old_value) {
+	if (IS_SET(key, mask) ||
+			(IS_SET(key, curmask) && (!IS_SET(key, mask) && IS_FORCED(key, mask))) ||
+			(!IS_SET(key, curmask) && (IS_SET(key, mask) && IS_FORCED(key, mask)))) {
+
+		if (IS_SET(key, mask) && (!IS_SET(key,curmask) || IS_FORCED(key,mask)))
+		{
+			if (!IS_SET(key, curmask))
+				*reset_value = new_reset_value;
+			*newmask |= key;
+			return max_value;
+		} else if ((IS_SET(key,curmask) && IS_SET(key, mask)) ||
+				(!IS_SET(key, mask) && IS_FORCED(key, mask))) {
+			*newmask &= ~key;
+			return *reset_value;
+		} else {
+			*newmask &= ~key;
+			return old_value;
+		}
+	} else
+		return new_reset_value;
+}
+
+void
+expand(unsigned char mask) {
+	XEvent ev;
+	int nx1, ny1, nx2, ny2;
+	unsigned char curmask;
+	unsigned char newmask;
+
+	if(!selmon->sel || selmon->sel->isfixed)
+		return;
+	XRaiseWindow(dpy, selmon->sel->win);
+	newmask = curmask = selmon->sel->expandmask;
+
+	if (curmask == 0) {
+		if(!selmon->lt[selmon->sellt]->arrange || selmon->sel->isfloating)
+			selmon->sel->wasfloating = 0;
+		else {
+			togglefloating(NULL);
+			selmon->sel->wasfloating = 0;
+		}
+	}
+
+	nx1 = calculate_expand(mask, curmask, &newmask,
+			EXPAND_LEFT, &selmon->sel->expandx1,
+			selmon->sel->x,
+			selmon->wx,
+			selmon->sel->oldx);
+	nx2 = calculate_expand(mask, curmask, &newmask,
+			EXPAND_RIGHT, &selmon->sel->expandx2,
+			selmon->sel->x + selmon->sel->w,
+			selmon->wx + selmon->ww - 2*borderpx,
+			selmon->sel->oldw + selmon->sel->x);
+	ny1 = calculate_expand(mask, curmask, &newmask,
+			EXPAND_UP, &selmon->sel->expandy1,
+			selmon->sel->y,
+			selmon->wy,
+			selmon->sel->oldy);
+	ny2 = calculate_expand(mask, curmask, &newmask,
+			EXPAND_DOWN, &selmon->sel->expandy2,
+			selmon->sel->y + selmon->sel->h,
+			selmon->wy + selmon->wh - 2*borderpx,
+			selmon->sel->oldh + selmon->sel->y);
+
+
+	resizeclient(selmon->sel, nx1, ny1, MAX(nx2-nx1, 32), MAX(ny2-ny1, 32));
+
+	if ((newmask == 0) && (!selmon->sel->wasfloating))
+		togglefloating(NULL);
+	selmon->sel->expandmask = newmask;
+	drawbar(selmon);
+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+togglemaximize(const Arg *arg) {
+	if (arg->i > 0) expand(FORCE_EXPANDALL);
+	else if (arg->i < 0) expand(UNEXPAND);
+	else expand(EXPANDALL);
+}
+
+void
+toggleverticalexpand(const Arg *arg) {
+	if (arg->i < 0) expand(EXPAND_DOWN);
+	else if (arg->i > 0) expand(EXPAND_UP);
+	else expand(EXPAND_DOWN | EXPAND_UP);
+}
+
+void
+togglehorizontalexpand(const Arg *arg) {
+	if (arg->i < 0) expand(EXPAND_LEFT);
+	else if (arg->i > 0) expand(EXPAND_RIGHT);
+	else expand(EXPAND_LEFT | EXPAND_RIGHT);
+}
+