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- /*
- * $XConsortium: xsetroot.c,v 1.21 91/04/24 08:22:41 gildea Exp $
- *
- * Copyright 1987, Massachusetts Institute of Technology
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
- * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
- /*
- * xsetroot.c MIT Project Athena, X Window System root window
- * parameter setting utility. This program will set
- * various parameters of the X root window.
- *
- * Author: Mark Lillibridge, MIT Project Athena
- * 11-Jun-87
- */
-
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/Xatom.h>
- #include <stdio.h>
- #include "X11/bitmaps/gray"
-
- char *index();
-
- #define Dynamic 1
-
- char *program_name;
- Display *dpy;
- int screen;
- Window root;
- char *fore_color = NULL;
- char *back_color = NULL;
- int reverse = 0;
- int save_colors = 0;
- int unsave_past = 0;
- Pixmap save_pixmap = (Pixmap)None;
-
- usage()
- {
- fprintf(stderr, "usage: %s [options]\n", program_name);
- fprintf(stderr, " where options are:\n");
- fprintf(stderr, " -display <display> or -d <display>\n");
- fprintf(stderr, " -fg <color> or -foreground <color>\n");
- fprintf(stderr, " -bg <color> or -background <color>\n");
- fprintf(stderr, " -rv or -reverse\n");
- fprintf(stderr, " -help\n");
- fprintf(stderr, " -def or -default\n");
- fprintf(stderr, " -name <string>\n");
- fprintf(stderr, " -cursor <cursor file> <mask file>\n");
- fprintf(stderr, " -cursor_name <cursor-font name>\n");
- fprintf(stderr, " -solid <color>\n");
- fprintf(stderr, " -gray or -grey\n");
- fprintf(stderr, " -bitmap <filename>\n");
- fprintf(stderr, " -mod <x> <y>\n");
- exit(1);
- /*NOTREACHED*/
- }
-
- Pixmap MakeModulaBitmap(), ReadBitmapFile();
- XColor NameToXColor();
- unsigned long NameToPixel();
- Cursor CreateCursorFromName();
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- int excl = 0;
- int nonexcl = 0;
- int restore_defaults = 0;
- char *display_name = NULL;
- char *name = NULL;
- char *cursor_file = NULL;
- char *cursor_mask = NULL;
- char *cursor_name = NULL;
- char *solid_color = NULL;
- Cursor cursor;
- int gray = 0;
- char *bitmap_file = NULL;
- int mod_x = 0;
- int mod_y = 0;
- register int i;
- unsigned int ww, hh;
- Pixmap bitmap;
-
- program_name=argv[0];
-
- for (i = 1; i < argc; i++) {
- if (!strcmp ("-display", argv[i]) || !strcmp ("-d", argv[i])) {
- if (++i>=argc) usage ();
- display_name = argv[i];
- continue;
- }
- if (!strcmp("-help", argv[i])) {
- usage();
- }
- if (!strcmp("-def", argv[i]) || !strcmp("-default", argv[i])) {
- restore_defaults = 1;
- continue;
- }
- if (!strcmp("-name", argv[i])) {
- if (++i>=argc) usage();
- name = argv[i];
- nonexcl++;
- continue;
- }
- if (!strcmp("-cursor", argv[i])) {
- if (++i>=argc) usage();
- cursor_file = argv[i];
- if (++i>=argc) usage();
- cursor_mask = argv[i];
- nonexcl++;
- continue;
- }
- if (!strcmp("-cursor_name", argv[i])) {
- if (++i>=argc) usage();
- cursor_name = argv[i];
- nonexcl++;
- continue;
- }
- if (!strcmp("-fg",argv[i]) || !strcmp("-foreground",argv[i])) {
- if (++i>=argc) usage();
- fore_color = argv[i];
- continue;
- }
- if (!strcmp("-bg",argv[i]) || !strcmp("-background",argv[i])) {
- if (++i>=argc) usage();
- back_color = argv[i];
- continue;
- }
- if (!strcmp("-solid", argv[i])) {
- if (++i>=argc) usage();
- solid_color = argv[i];
- excl++;
- continue;
- }
- if (!strcmp("-gray", argv[i]) || !strcmp("-grey", argv[i])) {
- gray = 1;
- excl++;
- continue;
- }
- if (!strcmp("-bitmap", argv[i])) {
- if (++i>=argc) usage();
- bitmap_file = argv[i];
- excl++;
- continue;
- }
- if (!strcmp("-mod", argv[i])) {
- if (++i>=argc) usage();
- mod_x = atoi(argv[i]);
- if (mod_x <= 0) mod_x = 1;
- if (++i>=argc) usage();
- mod_y = atoi(argv[i]);
- if (mod_y <= 0) mod_y = 1;
- excl++;
- continue;
- }
- if (!strcmp("-rv",argv[i]) || !strcmp("-reverse",argv[i])) {
- reverse = 1;
- continue;
- }
- usage();
- }
-
- /* Check for multiple use of exclusive options */
- if (excl > 1) {
- fprintf(stderr, "%s: choose only one of {solid, gray, bitmap, mod}\n",
- program_name);
- usage();
- }
-
- dpy = XOpenDisplay(display_name);
- if (!dpy) {
- fprintf(stderr, "%s: unable to open display '%s'\n",
- program_name, XDisplayName (display_name));
- exit (2);
- }
- screen = DefaultScreen(dpy);
- root = RootWindow(dpy, screen);
-
- /* If there are no arguments then restore defaults. */
- if (!excl && !nonexcl)
- restore_defaults = 1;
-
- /* Handle a cursor file */
- if (cursor_file) {
- cursor = CreateCursorFromFiles(cursor_file, cursor_mask);
- XDefineCursor(dpy, root, cursor);
- XFreeCursor(dpy, cursor);
- }
-
- if (cursor_name) {
- cursor = CreateCursorFromName (cursor_name);
- if (cursor)
- {
- XDefineCursor (dpy, root, cursor);
- XFreeCursor (dpy, cursor);
- }
- }
- /* Handle -gray and -grey options */
- if (gray) {
- bitmap = XCreateBitmapFromData(dpy, root, gray_bits,
- gray_width, gray_height);
- SetBackgroundToBitmap(bitmap, gray_width, gray_height);
- }
-
- /* Handle -solid option */
- if (solid_color) {
- XSetWindowBackground(dpy, root, NameToPixel(solid_color,
- BlackPixel(dpy, screen)));
- XClearWindow(dpy, root);
- unsave_past = 1;
- }
-
- /* Handle -bitmap option */
- if (bitmap_file) {
- bitmap = ReadBitmapFile(bitmap_file, &ww, &hh, (int *)NULL, (int *)NULL);
- SetBackgroundToBitmap(bitmap, ww, hh);
- }
-
- /* Handle set background to a modula pattern */
- if (mod_x) {
- bitmap = MakeModulaBitmap(mod_x, mod_y);
- SetBackgroundToBitmap(bitmap, 16, 16);
- }
-
- /* Handle set name */
- if (name)
- XStoreName(dpy, root, name);
-
- /* Handle restore defaults */
- if (restore_defaults) {
- if (!cursor_file)
- XUndefineCursor(dpy, root);
- if (!excl) {
- XSetWindowBackgroundPixmap(dpy, root, (Pixmap) None);
- XClearWindow(dpy, root);
- unsave_past = 1;
- }
- }
-
- FixupState();
- XCloseDisplay(dpy);
- exit (0);
- }
-
-
- /* Free past incarnation if needed, and retain state if needed. */
- FixupState()
- {
- Atom prop, type;
- int format;
- unsigned long length, after;
- unsigned char *data;
-
- if (!(DefaultVisual(dpy, screen)->class & Dynamic))
- unsave_past = 0;
- if (!unsave_past && !save_colors)
- return;
- prop = XInternAtom(dpy, "_XSETROOT_ID", False);
- if (unsave_past) {
- (void)XGetWindowProperty(dpy, root, prop, 0L, 1L, True, AnyPropertyType,
- &type, &format, &length, &after, &data);
- if ((type == XA_PIXMAP) && (format == 32) &&
- (length == 1) && (after == 0))
- XKillClient(dpy, *((Pixmap *)data));
- else if (type != None)
- fprintf(stderr, "%s: warning: _XSETROOT_ID property is garbage\n",
- program_name);
- }
- if (save_colors) {
- if (!save_pixmap)
- save_pixmap = XCreatePixmap(dpy, root, 1, 1, 1);
- XChangeProperty(dpy, root, prop, XA_PIXMAP, 32, PropModeReplace,
- (unsigned char *) &save_pixmap, 1);
- XSetCloseDownMode(dpy, RetainPermanent);
- }
- }
-
- /*
- * SetBackgroundToBitmap: Set the root window background to a caller supplied
- * bitmap.
- */
- SetBackgroundToBitmap(bitmap, width, height)
- Pixmap bitmap;
- unsigned int width, height;
- {
- Pixmap pix;
- GC gc;
- XGCValues gc_init;
-
- gc_init.foreground = NameToPixel(fore_color, BlackPixel(dpy, screen));
- gc_init.background = NameToPixel(back_color, WhitePixel(dpy, screen));
- if (reverse) {
- unsigned long temp=gc_init.foreground;
- gc_init.foreground=gc_init.background;
- gc_init.background=temp;
- }
- gc = XCreateGC(dpy, root, GCForeground|GCBackground, &gc_init);
- pix = XCreatePixmap(dpy, root, width, height,
- (unsigned int)DefaultDepth(dpy, screen));
- XCopyPlane(dpy, bitmap, pix, gc, 0, 0, width, height, 0, 0, (unsigned long)1);
- XSetWindowBackgroundPixmap(dpy, root, pix);
- XFreeGC(dpy, gc);
- XFreePixmap(dpy, bitmap);
- if (save_colors)
- save_pixmap = pix;
- else
- XFreePixmap(dpy, pix);
- XClearWindow(dpy, root);
- unsave_past = 1;
- }
-
-
- /*
- * CreateCursorFromFiles: make a cursor of the right colors from two bitmap
- * files.
- */
- #define BITMAP_HOT_DEFAULT 8
-
- CreateCursorFromFiles(cursor_file, mask_file)
- char *cursor_file, *mask_file;
- {
- Pixmap cursor_bitmap, mask_bitmap;
- unsigned int width, height, ww, hh;
- int x_hot, y_hot;
- Cursor cursor;
- XColor fg, bg, temp;
-
- fg = NameToXColor(fore_color, BlackPixel(dpy, screen));
- bg = NameToXColor(back_color, WhitePixel(dpy, screen));
- if (reverse) {
- temp = fg; fg = bg; bg = temp;
- }
-
- cursor_bitmap = ReadBitmapFile(cursor_file, &width, &height, &x_hot, &y_hot);
- mask_bitmap = ReadBitmapFile(mask_file, &ww, &hh, (int *)NULL, (int *)NULL);
-
- if (width != ww || height != hh) {
- fprintf(stderr,
- "%s: dimensions of cursor bitmap and cursor mask bitmap are different\n",
- program_name);
- exit(1);
- /*NOTREACHED*/
- }
-
- if ((x_hot == -1) && (y_hot == -1)) {
- x_hot = BITMAP_HOT_DEFAULT;
- y_hot = BITMAP_HOT_DEFAULT;
- }
- if ((x_hot < 0) || (x_hot >= width) ||
- (y_hot < 0) || (y_hot >= height)) {
- fprintf(stderr, "%s: hotspot is outside cursor bounds\n", program_name);
- exit(1);
- /*NOTREACHED*/
- }
-
- cursor = XCreatePixmapCursor(dpy, cursor_bitmap, mask_bitmap, &fg, &bg,
- (unsigned int)x_hot, (unsigned int)y_hot);
- XFreePixmap(dpy, cursor_bitmap);
- XFreePixmap(dpy, mask_bitmap);
-
- return(cursor);
- }
-
- Cursor
- CreateCursorFromName (name)
- char *name;
- {
- XColor fg, bg, temp;
- int i;
- Font fid;
-
- fg = NameToXColor(fore_color, BlackPixel(dpy, screen));
- bg = NameToXColor(back_color, WhitePixel(dpy, screen));
- if (reverse) {
- temp = fg; fg = bg; bg = temp;
- }
- i = XmuCursorNameToIndex (name);
- if (i == -1)
- return (Cursor) 0;
- fid = XLoadFont (dpy, "cursor");
- if (!fid)
- return (Cursor) 0;
- return XCreateGlyphCursor (dpy, fid, fid,
- i, i+1, &fg, &bg);
- }
-
- /*
- * MakeModulaBitmap: Returns a modula bitmap based on an x & y mod.
- */
- Pixmap MakeModulaBitmap(mod_x, mod_y)
- int mod_x, mod_y;
- {
- int i;
- long pattern_line = 0;
- char modula_data[16*16/8];
-
- for (i=0; i<16; i++) {
- pattern_line <<=1;
- if ((i % mod_x) == 0) pattern_line |= 0x0001;
- }
- for (i=0; i<16; i++) {
- if ((i % mod_y) == 0) {
- modula_data[i*2] = 0xff;
- modula_data[i*2+1] = 0xff;
- } else {
- modula_data[i*2] = pattern_line & 0xff;
- modula_data[i*2+1] = (pattern_line>>8) & 0xff;
- }
- }
-
- return(XCreateBitmapFromData(dpy, root, modula_data, 16, 16));
- }
-
-
- /*
- * NameToXColor: Convert the name of a color to its Xcolor value.
- */
- XColor NameToXColor(name, pixel)
- char *name;
- unsigned long pixel;
- {
- XColor c;
-
- if (!name || !*name) {
- c.pixel = pixel;
- XQueryColor(dpy, DefaultColormap(dpy, screen), &c);
- } else if (!XParseColor(dpy, DefaultColormap(dpy, screen), name, &c)) {
- fprintf(stderr, "%s: unknown color or bad color format: %s\n",
- program_name, name);
- exit(1);
- /*NOTREACHED*/
- }
- return(c);
- }
-
- unsigned long NameToPixel(name, pixel)
- char *name;
- unsigned long pixel;
- {
- XColor ecolor;
-
- if (!name || !*name)
- return pixel;
- if (!XParseColor(dpy,DefaultColormap(dpy,screen),name,&ecolor)) {
- fprintf(stderr,"%s: unknown color \"%s\"\n",program_name,name);
- exit(1);
- /*NOTREACHED*/
- }
- if (!XAllocColor(dpy, DefaultColormap(dpy, screen),&ecolor)) {
- fprintf(stderr, "%s: unable to allocate color for \"%s\"\n",
- program_name, name);
- exit(1);
- /*NOTREACHED*/
- }
- if ((ecolor.pixel != BlackPixel(dpy, screen)) &&
- (ecolor.pixel != WhitePixel(dpy, screen)) &&
- (DefaultVisual(dpy, screen)->class & Dynamic))
- save_colors = 1;
- return(ecolor.pixel);
- }
-
- Pixmap ReadBitmapFile(filename, width, height, x_hot, y_hot)
- char *filename;
- unsigned int *width, *height;
- int *x_hot, *y_hot;
- {
- Pixmap bitmap;
- int status;
-
- status = XReadBitmapFile(dpy, root, filename, width,
- height, &bitmap, x_hot, y_hot);
- if (status == BitmapSuccess)
- return(bitmap);
- else if (status == BitmapOpenFailed)
- fprintf(stderr, "%s: can't open file: %s\n", program_name, filename);
- else if (status == BitmapFileInvalid)
- fprintf(stderr, "%s: bad bitmap format file: %s\n",
- program_name, filename);
- else
- fprintf(stderr, "%s: insufficient memory for bitmap: %s",
- program_name, filename);
- exit(1);
- /*NOTREACHED*/
- }
-