introduced tile.c, some refactoring of functions

1 files changed, 132 insertions, 0 deletions

diff --git a/tile.c b/tile.c
new file mode 100644
index 00000000..a9bc0f51
--- /dev/null
+++ b/tile.c
@@ -0,0 +1,132 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "dwm.h"
+
+/* static */
+
+static void
+togglemax(Client *c) {
+	XEvent ev;
+		
+	if(c->isfixed)
+		return;
+
+	if((c->ismax = !c->ismax)) {
+		c->rx = c->x;
+		c->ry = c->y;
+		c->rw = c->w;
+		c->rh = c->h;
+		resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
+	}
+	else
+		resize(c, c->rx, c->ry, c->rw, c->rh, True);
+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+/* extern */
+
+void
+dotile(void) {
+	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
+	Client *c;
+
+	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
+		n++;
+	/* window geoms */
+	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
+	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
+	th = (n > nmaster) ? wah / (n - nmaster) : 0;
+	tw = waw - mw;
+
+	for(i = 0, c = clients; c; c = c->next)
+		if(isvisible(c)) {
+			if(c->isbanned)
+				XMoveWindow(dpy, c->win, c->x, c->y);
+			c->isbanned = False;
+			if(c->isfloat)
+				continue;
+			c->ismax = False;
+			nx = wax;
+			ny = way;
+			if(i < nmaster) {
+				ny += i * mh;
+				nw = mw - 2 * BORDERPX;
+				nh = mh - 2 * BORDERPX;
+			}
+			else {  /* tile window */
+				nx += mw;
+				nw = tw - 2 * BORDERPX;
+				if(th > 2 * BORDERPX) {
+					ny += (i - nmaster) * th;
+					nh = th - 2 * BORDERPX;
+				}
+				else /* fallback if th <= 2 * BORDERPX */
+					nh = wah - 2 * BORDERPX;
+			}
+			resize(c, nx, ny, nw, nh, False);
+			i++;
+		}
+		else {
+			c->isbanned = True;
+			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+		}
+	if(!sel || !isvisible(sel)) {
+		for(c = stack; c && !isvisible(c); c = c->snext);
+		focus(c);
+	}
+	restack();
+}
+
+void
+incnmaster(Arg *arg) {
+	if((arrange == dofloat) || (nmaster + arg->i < 1)
+	|| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
+		return;
+	nmaster += arg->i;
+	if(sel)
+		arrange();
+	else
+		drawstatus();
+}
+
+void
+resizemaster(Arg *arg) {
+	if(arrange != dotile)
+		return;
+	if(arg->i == 0)
+		master = MASTER;
+	else {
+		if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
+		|| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
+			return;
+		master += arg->i;
+	}
+	arrange();
+}
+
+void
+zoom(Arg *arg) {
+	unsigned int n;
+	Client *c;
+
+	if(!sel)
+		return;
+	if(sel->isfloat || (arrange == dofloat)) {
+		togglemax(sel);
+		return;
+	}
+	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
+		n++;
+
+	if((c = sel) == nextmanaged(clients))
+		if(!(c = nextmanaged(c->next)))
+			return;
+	detach(c);
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	clients = c;
+	focus(c);
+	arrange();
+}