argv@island.uu.net (Dan Heller) (05/17/89)
Submitted-by: Richard Neitzel <thor@thor.ucar.edu>
Posting-number: Volume 4, Issue 2
Archive-name: xcursor/part01
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#!/bin/sh
# shar: Shell Archiver
# Run the following text with /bin/sh to create:
# Makefile
# README
# xcursor.c
# xcursor.h
# xcursor.l
# This archive created: Mon May 15 09:12:25 1989
cat << \SHAR_EOF > Makefile
XLIB = -lX11
CDEBUGOPTIONS = -O4
xcursor:
cc -o xcursor $(CDEBUGOPTIONS) xcursor.c $(XLIB)
SHAR_EOF
cat << \SHAR_EOF > README
xcursor is small tool that lets one set the cursor for a window. Note
that not all windows will allow this type of change. To make, edit
xcursor.h to reflect the location of cursorfont.h and the local
default cursor type and make any local changes to Makefile.
This program has been tested on the following:
Sun-3/260
Sun-3E
all running SunOS 4.0.1 and X11r3.
Send comments, flames, etc. to:
Richard Neitzel
National Center for Atmospheric Research
Box 3000
Boulder, CO 80307
thor@thor.ucar.edu
SHAR_EOF
cat << \SHAR_EOF > xcursor.c
/*
Module: xcursor.c
Author: Richard Neitzel
Date: 12 May 1989
revision history
----------------
1.0,12may89,rekn Written.
This is a quick program that reads the header file defining cursors
and lets one change the cursor for a specified window. Window
defaults to root, cursor to what's in xcursor.h.
*/
#include "xcursor.h"
main(argc,argv)
int argc;
char **argv;
{
register int opt; /* Parsed option letter */
char *id_str; /* Window id in ASCII */
extern int optind;
extern char *optarg;
if ((display = XOpenDisplay(NULL)) == NULL)
{
perror("xcursor - no display");
exit(1);
}
while ((opt = getopt(argc,argv,"lvw:")) != -1)
{
switch(opt)
{
case 'l': /* Just list cursors */
lflg++;
break;
case 'v': /* Print version */
print_vers();
break;
case 'w': /* Do this window */
wflg++;
id_str = optarg;
break;
case '?':
local_help();
break;
}
}
if (optind < argc) /* check for user requested cursor */
find_cursor = argv[optind];
else
find_cursor = default_cursor;
if (wflg) /* Use strtol to handle hex */
window = (Window)strtol(id_str,(char **)NULL,0);
else
window = DefaultRootWindow(display);
work();
exit(0);
}
void print_vers()
{
fprintf(stderr,"xcursor version %s\n",version_number);
exit(0);
}
char *help_text[] = {
"xcursor is a small tool to set the cursor for a specified window.",
"The syntax is:",
"",
" xcursor [-l][-w id] [cursor]",
"",
"the -l flag lists all known cursors, the -w flag sets the cursor for",
"window id (defaults to root window) and cursor is the name of the",
"cursor you want (defaults to whatever local builder desired)",
0};
void local_help()
{
register char **ptr;
for (ptr = help_text; *ptr; ptr++)
fprintf(stderr,"%s\n",*ptr);
exit(1);
}
void work()
{
register FILE *fp; /* Source file */
register char *start; /* Cursor name */
register char *middle; /* Value in ASCII */
register Cursor curs; /* Selected cursor */
register unsigned int cursor; /* Converted middle */
register int flag = 0; /* OK flag */
char buffer[BUFSIZE]; /* Read buffer */
if ((fp = fopen(cursor_file,"r")) == (FILE *)NULL)
{
perror("xcursor");
exit(1);
}
while (fgets(buffer,BUFSIZE,fp))
{
if ((start = strchr(buffer,'X')) != NULL)
{
if (!strncmp(start,"XC_",3))
{
middle = strchr(start,' ');
*middle++ = 0;
cursor = (unsigned int)strtol(middle,(char **)NULL,0);
if (lflg)
{
flag++;
printf("%s\n",start);
}
else if (!strcmp(start,find_cursor))
{
curs = XCreateFontCursor(display,cursor);
XDefineCursor(display,window,curs);
XCloseDisplay(display);
flag++;
break;
}
}
}
}
if (!flag)
fprintf(stderr,"xcursor - Cannot find %s\n",find_cursor);
fclose(fp);
}
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cat << \SHAR_EOF > xcursor.h
/*
*/
#ifndef INCxcursor
#define INCxcursor
#include <stdio.h>
#include <string.h>
#include <X11/Xlib.h>
Display *display;
Window window;
char cursor_file[] = "/usr/include/X11/cursorfont.h";
char default_cursor[] = "XC_gumby";
char version_number[] = "1.0";
char *find_cursor;
int lflg = 0;
int wflg = 0;
#define BUFSIZE 100
void print_vers(), local_help(), work();
#endif
SHAR_EOF
cat << \SHAR_EOF > xcursor.l
.TH xcursor 1 "12 May 1989"
.SH NAME
xcursor \- set cursor in an X window
.SH SYNOPSIS
xcursor [-v][-l][-w id] [cursor]
.SH DESCRIPTION
.I Xcursor
allows the cursor for a window to be set to one of the standard X
cursors or lists the available cursors. If no window id is specified,
.I xcursor
will act on the root window by default. If no cursor name is given,
the default cursor selected at the time
.I xcursor
was built will be used. Cursors are extracted from the file
cursorfont.h.
.SH OPTIONS
.nf
\-l This causes a list of the standard X cursors to be
given on standard output.
\-v Prints the version number.
\-w Denotes that the next option is the window id of the
window whose cursor will be effected. May be entered
in decimal, octal or hexadecimal.
.fi
.SH FILES
Requires read access to the cursorfonts.h file (located in the X
includes path).
.SH BUGS
Not all windows will allow their cursor to be reset in this fashion.
Does not understand user defined cursors.
.SH AUTHOR
.nf
Richard Neitzel
National Center for Atmospheric Research
Box 3000
Boulder, CO 80307
thor@thor.ucar.edu
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