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+/*
+ * $Xorg: xsetroot.c,v 1.4 2001/02/09 02:05:59 xorgcvs Exp $
+ *
+Copyright 1987, 1998 The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+ */
+
+/*
+ * 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"
+
+
+#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*/
+}
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