Initial revision

screen.c

@@ -0,0 +1,103 @@
+/*
+ * calmwm - the calm window manager
+ *
+ * Copyright (c) 2004 Marius Aamodt Eriksen <marius@monkey.org>
+ * All rights reserved.
+ *
+ * $Id$
+ */
+
+#include "headers.h"
+#include "calmwm.h"
+
+extern struct screen_ctx_q	G_screenq;
+extern struct screen_ctx       *G_curscreen;
+
+static void
+_clearwindow_cb(int sig)
+{
+	struct screen_ctx *sc = screen_current();
+	XUnmapWindow(G_dpy, sc->infowin);
+}
+
+struct screen_ctx *
+screen_fromroot(Window rootwin)
+{
+	struct screen_ctx *sc;
+
+	TAILQ_FOREACH(sc, &G_screenq, entry)
+		if (sc->rootwin == rootwin)
+			return (sc);
+
+	/* XXX FAIL HERE */
+	return (TAILQ_FIRST(&G_screenq));
+}
+
+struct screen_ctx *
+screen_current(void)
+{
+	return (G_curscreen);
+}
+
+void
+screen_updatestackingorder(void)
+{
+	Window *wins, w0, w1;
+	struct screen_ctx *sc = screen_current();
+	u_int nwins, i, s;
+	struct client_ctx *cc;
+
+	if (!XQueryTree(G_dpy, sc->rootwin, &w0, &w1, &wins, &nwins))
+		return;
+
+	for (s = 0, i = 0; i < nwins; i++) {
+		/* Skip hidden windows */
+		if ((cc = client_find(wins[i])) == NULL ||
+		    cc->flags & CLIENT_HIDDEN)
+			continue;
+
+		cc->stackingorder = s++;
+	}
+
+	XFree(wins);
+}
+
+void
+screen_init(void)
+{
+
+	struct screen_ctx *sc = screen_current();
+
+	sc->cycle_client = NULL;
+
+	sc->infowin = XCreateSimpleWindow(G_dpy, sc->rootwin, 0, 0,
+	    1, 1, 1, sc->blackpixl, sc->whitepixl);
+
+	/* XXX - marius. */
+	if (signal(SIGALRM, _clearwindow_cb) == SIG_ERR)
+		err(1, "signal");
+}
+
+void
+screen_infomsg(char *msg)
+{
+	struct screen_ctx *sc = screen_current();
+	char buf[1024];
+	int dy, dx;
+	struct fontdesc *font = DefaultFont;
+
+	XUnmapWindow(G_dpy, sc->infowin);
+	alarm(0);
+
+	snprintf(buf, sizeof(buf), ">%s", msg);
+	dy = font_ascent(font) + font_descent(font) + 1;
+	dx = font_width(font, buf, strlen(buf));
+
+	XMoveResizeWindow(G_dpy, sc->infowin, 0, 0, dx, dy);
+	XMapRaised(G_dpy, sc->infowin);
+
+	font_draw(font, buf, strlen(buf), sc->infowin,
+	    0, font_ascent(font) + 1);
+
+	alarm(1);
+}