text: /*
   * $XConsortium: xstdcmap.c,v 1.10 94/04/17 20:38:44 hersh Exp $
   *
   * 
  Copyright (c) 1989  X Consortium
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  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
  X CONSORTIUM 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 X Consortium 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 X Consortium.
   * *
   * Author:  Donna Converse, MIT X Consortium
   */
  
  #include <stdio.h>
  #include <X11/Xos.h>
  #include <X11/Xlib.h>
  #include <X11/Xutil.h>
  #include <X11/Xresource.h>
  #include <X11/Xatom.h>
  #include <X11/Xmu/StdCmap.h>
  
  extern void exit();
  
  #define REPLACE		1
  #define DO_NOT_REPLACE  0
  #define RETAIN		1
  #define DO_NOT_RETAIN	0
  
  static char		*display_name = NULL;
  static char		*program_name = NULL;
  static Bool		all = 0;
  static Bool		help = 0;
  static Bool 		verbose = 0;
  static Display		*dpy = NULL;
  
  typedef struct
  {
      Bool	create;
      Bool	delete;
      Atom	property;
      char	*name;
      char	*nickname;
  } colormap_property;
  
  static colormap_property propertyTable[]=
  {
  {0,	0,	XA_RGB_DEFAULT_MAP,	"RGB_DEFAULT_MAP",	"default"},
  {0,	0,	XA_RGB_BEST_MAP,	"RGB_BEST_MAP",		"best"},
  {0,	0,	XA_RGB_GRAY_MAP,	"RGB_GRAY_MAP",		"gray"},
  {0,	0,	XA_RGB_RED_MAP,		"RGB_RED_MAP",		"red"},
  {0,	0,	XA_RGB_GREEN_MAP,	"RGB_GREEN_MAP",	"green"},
  {0,	0,	XA_RGB_BLUE_MAP,	"RGB_BLUE_MAP",		"blue"},
  };
  #define NPROPERTIES (sizeof propertyTable / sizeof propertyTable[0])
  
  #define DEFAULT	0
  #define BEST	1
  #define GRAY	2
  #define RED	3
  #define GREEN	4
  #define BLUE	5
  
  static char	*usage_message[]=
  {
  "    -all               make all standard colormaps for the display",
  "    -best              make the RGB_BEST_MAP",
  "    -blue              make the RGB_BLUE_MAP",
  "    -default           make the RGB_DEFAULT_MAP",
  "    -delete name       remove a standard colormap",
  "    -display dpy       X server to use",
  "    -gray              make the RGB_GRAY_MAP",
  "    -green             make the RGB_GREEN_MAP",
  "    -red               make the RGB_RED_MAP",
  "    -verbose           turn on logging",
  "",
  NULL };
  
  static XrmOptionDescRec optionTable[]=
  {
  {"-all",	".all",		XrmoptionNoArg,		(caddr_t) "on"},
  {"-best",	".best",	XrmoptionNoArg,		(caddr_t) "on"},
  {"-blue",	".blue",	XrmoptionNoArg,		(caddr_t) "on"},
  {"-default",	".default",	XrmoptionNoArg,		(caddr_t) "on"},
  {"-delete",	".delete",	XrmoptionSepArg,	(caddr_t) NULL},
  {"-display",	".display", 	XrmoptionSepArg,	(caddr_t) NULL},
  {"-gray",	".gray",	XrmoptionNoArg,		(caddr_t) "on"},
  {"-green",	".green",	XrmoptionNoArg,		(caddr_t) "on"},
  {"-help",	".help",        XrmoptionNoArg,		(caddr_t) "on"},
  {"-red",	".red",		XrmoptionNoArg,		(caddr_t) "on"},
  {"-verbose",	".verbose",	XrmoptionNoArg,		(caddr_t) "on"},
  };
  #define NOPTIONS (sizeof optionTable / sizeof optionTable[0])
  
  static void parse(argc, argv)
      int		argc;
      char	**argv;
  {
      XrmDatabase		database = NULL;
      char		*type;
      XrmValue		value;
      char		option[512];
  
      if (argc == 1)
  	usage(0);
  
      XrmInitialize();
      XrmParseCommand(&database, optionTable, NOPTIONS, program_name, &argc,
  		    argv);
      if (--argc)
  	usage(1);
  
      (void) sprintf(option, "%s%s", program_name, ".all");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
      	all++;
  
      (void) sprintf(option, "%s%s", program_name, ".best");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
      	propertyTable[BEST].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".blue");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	propertyTable[BLUE].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".default");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	propertyTable[DEFAULT].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".delete");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value)) {
  	register int i;
  	for (i=0; i < NPROPERTIES; i++) {
  	    if (strcmp((char *) value.addr, propertyTable[i].nickname) == 0) {
  		propertyTable[i].delete++;
  		break;
  	    }
  	    if (strcmp((char *) value.addr, "all") == 0)
  		propertyTable[i].delete++;
  	}
      }
  		
      (void) sprintf(option, "%s%s", program_name, ".display");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	display_name = value.addr;
  
      (void) sprintf(option, "%s%s", program_name, ".gray");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	propertyTable[GRAY].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".green");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	propertyTable[GREEN].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".help");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	help++;
  
      (void) sprintf(option, "%s%s", program_name, ".red");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	propertyTable[RED].create++;
  
      (void) sprintf(option, "%s%s", program_name, ".verbose");
      if (XrmGetResource(database, option, (char *) NULL, &type, &value))
  	verbose++;
  }
  
  Exit(status)
      Status	status;
  {
      if (dpy)
  	XCloseDisplay(dpy);
      exit(status);
  }
  
  usage(status)
      Status		status;
  {
      register char	**i;
      (void) fprintf(stderr, "usage:  %s [-options]\n\n", program_name);
      (void) fprintf(stderr, "where options include:\n");
      for (i = usage_message; *i != NULL; i++)
  	(void) fprintf(stderr, "%s\n", *i);
      Exit(status);
  }
  
  /* Determine the visual of greatest depth in a given visual class.
   * If no such visual exists, return NULL.  
   */
  static XVisualInfo *getDeepestVisual(visual_class, vinfo, nvisuals)
      int		visual_class;	/* specifies the desired visual class */
      XVisualInfo	*vinfo;		/* specifies all visuals for a screen */
      int		nvisuals;	/* specifies number of visuals in the list */
  {
      register int	i;
      unsigned int	maxdepth = 0;
      XVisualInfo		*v = NULL;
      
      for (i=0; i < nvisuals; i++, vinfo++)
  	if (vinfo->class == visual_class && vinfo->depth > maxdepth)
  	{
  	    maxdepth = vinfo->depth;
  	    v = vinfo;
  	}
      return(v);
  }
  
  /* Determine the ``best'' visual of the screen for a standard colormap
   * property.  Return NULL if no visual is appropriate.
   */
  static XVisualInfo *getBestVisual(property, vinfo, nvisuals)
      Atom	property;	/* specifies the standard colormap */
      XVisualInfo *vinfo;		/* specifies all visuals of the screen */
      int		nvisuals;	/* specifies number of visuals of screen */
  {	
      XVisualInfo	*v1 = NULL, *v2 = NULL;
  
      if (vinfo == NULL)		 /* unexpected: a screen with no visuals */
  	return v1;
      v1 = getDeepestVisual(DirectColor, vinfo, nvisuals);
      v2 = getDeepestVisual(PseudoColor, vinfo, nvisuals);
      if (v2 && (!v1 || (v2->colormap_size >=
  		       ((v1->red_mask | v1->green_mask | v1->blue_mask) + 1))))
  	return v2;
      else if (v1)
  	return v1;
      if (property == XA_RGB_BEST_MAP)
  	if (((v1 = getDeepestVisual(TrueColor, vinfo, nvisuals)) != NULL) ||
  	    ((v1 = getDeepestVisual(StaticColor, vinfo, nvisuals)) != NULL))
  	    return v1;
      if (property == XA_RGB_GRAY_MAP)
  	if (((v1 = getDeepestVisual(GrayScale, vinfo, nvisuals)) != NULL) ||
  	    ((v1 = getDeepestVisual(StaticGray, vinfo, nvisuals)) != NULL))
  	    return v1;
      if (property == XA_RGB_DEFAULT_MAP)
  	for (v1 = vinfo; v1->visual != DefaultVisual(dpy, v1->screen); v1++)
  	    ;
      return v1;
  
  }
  
  static char *visualStringFromClass(class)
      int	class;
  {
      switch (class) {
        case PseudoColor: return "PseudoColor";
        case DirectColor: return "DirectColor";
        case GrayScale: return "GrayScale";
        case StaticColor: return "StaticColor";
        case TrueColor: return "TrueColor";
        case StaticGray: return "StaticGray";
      }
      return "unknown visual class";
  }
  
  static int doIndividualColormaps()
  {
      int			i, screen, nvisuals;
      Status		status;
      XVisualInfo		*vinfo = NULL, *v = NULL, template;
      
      screen = DefaultScreen(dpy);
      template.screen = screen;
      vinfo = XGetVisualInfo(dpy, VisualScreenMask, &template, &nvisuals);
  
      /* check for individual standard colormap requests */
      for (i=0; i < NPROPERTIES; i++) {
  
  	if (propertyTable[i].delete) {
  	    XmuDeleteStandardColormap(dpy, screen, propertyTable[i].property);
  	    if (verbose)
  		fprintf(stderr, "%s: %s was deleted or did not exist.\n",
  			program_name, propertyTable[i].name);
  	}
  
  	if (! propertyTable[i].create)	
  	    continue;
  	
  	/* which visual is best for this property? */
  	v = getBestVisual(propertyTable[i].property, vinfo, nvisuals);
  	if (v == NULL) {
  	    if (verbose)
  		(void) fprintf(stderr,
  		       "%s: no visual appropriate for %s on screen %d.\n",
  			program_name, propertyTable[i].name, screen);
  	    continue;
  	}
  
  
  	if (verbose)
  	    (void) fprintf(stderr,
  			   "%s: making %s on a %s visual of depth %u.\n",
  			   program_name, propertyTable[i].name,
  			   visualStringFromClass(v->class), v->depth);
  	
  	status = XmuLookupStandardColormap(dpy, screen, v->visualid,
  					   v->depth,
  					   propertyTable[i].property,
  					   DO_NOT_REPLACE, RETAIN);
  	if (verbose)
  	    (void) fprintf(stderr,
  			   "%s: %s standard colormap %s.\n", program_name,
  			   propertyTable[i].name, (status)
  			   ? "was created or already exists"
  			   : "cannot be defined");
  	if (!status)
  	    break;
      }
      XFree((char *) vinfo);
      return status;
  }
  
  /* Bare bones standard colormap generation utility */
  main(argc, argv)
      int		argc;
      char	**argv;
  {
      Status	status = 0;
  
      if (program_name = strrchr(*argv, '/'))
  	program_name++;
      else
  	program_name = *argv;
  
      parse(argc, argv);
  
      if ((dpy = XOpenDisplay(display_name)) == NULL) {
  	(void) fprintf(stderr, "%s: cannot open display \"%s\".\n",
  		       program_name, XDisplayName(display_name));
  	exit(1);
      }
  
      if (help) {
  	usage(0);
  	Exit(0);
      }
  
      if (all) {
  	if (verbose)
  	    (void) fprintf(stderr,
  			   "%s: making all appropriate standard colormaps...",
  			   program_name);
  	status = XmuAllStandardColormaps(dpy);
  	if (verbose)
  	    (void) fprintf(stderr,
  			   "\n%s!\n", (status) ? "success" : "failure");
      }
      else {
  	status = doIndividualColormaps();
  	if (!status && verbose)
  	    (void) fprintf(stderr, 
  		    "Not all new colormap definitions will be retained.\n");
      }
      Exit((status == 0) ? 1 : 0);
  }
  