quake-style console with xterm
initial revision
+281
+43
Makefile
+43
Makefile
···
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# $Id: Makefile,v 1.1 2008/10/02 05:25:26 jcs Exp $
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# vim:ts=8
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CC = cc
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CFLAGS = -g -O2 -Wall -Wunused -Wmissing-prototypes -Wstrict-prototypes
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PREFIX = /usr/local
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BINDIR = $(DESTDIR)$(PREFIX)/bin
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INSTALL_PROGRAM = install -s
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X11BASE = /usr/X11R6
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INCLUDES= -I$(X11BASE)/include
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LDPATH = -L$(X11BASE)/lib
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LIBS = -lX11
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PROG = qconsole
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OBJS = qconsole.o
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VERS := `grep Id qconsole.c | sed -e 's/.*,v //' -e 's/ .*//'`
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all: $(PROG)
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$(PROG): $(OBJS)
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$(CC) $(OBJS) $(LDPATH) $(LIBS) -o $@
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$(OBJS): *.o: *.c
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$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
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install: all
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$(INSTALL_PROGRAM) $(PROG) $(BINDIR)
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clean:
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rm -f $(PROG) $(OBJS)
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release: all
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@mkdir $(PROG)-${VERS}
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@cp Makefile *.c $(PROG)-$(VERS)/
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@tar -czf ../$(PROG)-$(VERS).tar.gz $(PROG)-$(VERS)
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@rm -rf $(PROG)-$(VERS)/
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@echo "made release ${VERS}"
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.PHONY: all install clean
+238
qconsole.c
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qconsole.c
···
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/* vim:ts=8
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* $Id: qconsole.c,v 1.1 2008/10/02 05:25:26 jcs Exp $
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*
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* qconsole
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*
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* Copyright (c) 2005, 2008 joshua stein <jcs@jcs.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <err.h>
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#include <getopt.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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/* so our window manager knows us */
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char* win_name = "qconsole";
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struct xinfo {
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Display* dpy;
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int dpy_width, dpy_height;
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int screen;
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Window win;
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int width;
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int height;
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} x;
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pid_t xterm_pid = 0;
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int shutting_down = 0;
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extern char *__progname;
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void xterm_handler(int sig);
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void exit_handler(int sig);
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void draw_window(void);
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void scroll_down(void);
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void usage(void);
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int
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main(int argc, char* argv[])
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{
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XEvent event;
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signal(SIGCHLD, xterm_handler);
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signal(SIGINT, exit_handler);
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signal(SIGTERM, exit_handler);
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draw_window();
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/* all set, fire up xterm */
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xterm_handler(0);
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for (;;) {
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bzero(&event, sizeof(XEvent));
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XNextEvent (x.dpy, &event);
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if (event.type == ReparentNotify) {
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XReparentEvent *e = (XReparentEvent *) &event;
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printf("got notify signal, win is %d\n",
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e->window);
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XMoveWindow(x.dpy, e->window, 0, 0);
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XResizeWindow(x.dpy, e->window, x.width, x.height);
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XSetInputFocus(x.dpy, e->window, RevertToParent,
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CurrentTime);
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scroll_down();
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} else
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printf("unknown event type 0x%x for win %d\n",
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event.type, event.xany.window);
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}
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exit(1);
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}
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void
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draw_window(void)
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{
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int rc;
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char *display = NULL;
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XSetWindowAttributes attributes;
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XTextProperty win_name_prop;
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bzero(&x, sizeof(struct xinfo));
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if (!(x.dpy = XOpenDisplay(display)))
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errx(1, "Unable to open display %s", XDisplayName(display));
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/* NOTREACHED */
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x.screen = DefaultScreen(x.dpy);
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x.width = x.dpy_width = DisplayWidth(x.dpy, x.screen);
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x.dpy_height = DisplayHeight(x.dpy, x.screen);
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x.height = x.dpy_height / 5;
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x.win = XCreateSimpleWindow(x.dpy, RootWindow(x.dpy, x.screen),
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0, -(x.height),
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x.width, x.height,
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0,
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BlackPixel(x.dpy, x.screen),
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BlackPixel(x.dpy, x.screen));
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if (!(rc = XStringListToTextProperty(&win_name, 1, &win_name_prop)))
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errx(1, "XStringListToTextProperty");
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/* NOTREACHED */
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XSetWMName(x.dpy, x.win, &win_name_prop);
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/* remove all window manager decorations and force our position/size */
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/* XXX: apparently this is not very nice */
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attributes.override_redirect = True;
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XChangeWindowAttributes(x.dpy, x.win, CWOverrideRedirect, &attributes);
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XMapWindow(x.dpy, x.win);
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XFlush(x.dpy);
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XSync(x.dpy, False);
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/* we want to know when we're exposed */
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XSelectInput(x.dpy, x.win, SubstructureNotifyMask);
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}
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void
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exit_handler(int sig)
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{
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shutting_down = 1;
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if (xterm_pid)
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kill(xterm_pid, SIGKILL);
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XCloseDisplay(x.dpy);
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exit(0);
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/* NOTREACHED */
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}
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void
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xterm_handler(int sig)
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{
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char *pargv[8] = {
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"xterm", "-bg", "black", "-fg", "gray", "-into", "",
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NULL
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};
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pid_t pid;
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if (shutting_down)
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return;
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printf("in xterm_handler\n");
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if (xterm_pid) {
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int s;
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XUnmapSubwindows(x.dpy, x.win);
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printf("waiting\n");
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wait(&s);
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printf("done\n");
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xterm_pid = 0;
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}
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if (!xterm_pid) {
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switch (pid = fork()) {
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case -1:
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errx(1, "Unable to fork");
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case 0:
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asprintf(&pargv[6], "%d", x.win);
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execvp("xterm", pargv);
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exit(0);
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default:
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xterm_pid = pid;
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}
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}
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}
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void
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scroll_down(void)
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{
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int cur_x, cur_y, j;
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unsigned width, height, bw, depth;
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Window root;
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XGetGeometry(x.dpy, x.win, &root,
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&cur_x, &cur_y, &width, &height, &bw, &depth);
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printf("currently at %d/%d\n", cur_x, cur_y);
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for (j = cur_y; j <= 0;) {
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printf("moving to %d/%d\n", 0, j);
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XMoveWindow(x.dpy, x.win, 0, j);
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XFlush(x.dpy);
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XSync(x.dpy, False);
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j -= (cur_y / 20) - 1;
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}
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XMoveWindow(x.dpy, x.win, 0, 0);
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}
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void
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usage(void)
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{
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fprintf(stderr, "usage: %s %s\n", __progname,
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"[-display host:dpy] [-width <pixels>] [time time2 ...]");
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exit(1);
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}