IABSD.fr/xenocara/app/xlockmore/modes/blank.c

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• Author : matthieu
  Date : 2006-11-26 11:07:42
  Hash : 110b2a92
  Message : Importing xlockmore 5.22

• app/xlockmore/modes/blank.c

• /* -*- Mode: C; tab-width: 4 -*- */
  /* blank --- blank screen */
  
  #if !defined( lint ) && !defined( SABER )
  static const char sccsid[] = "@(#)blank.c	5.00 2000/11/01 xlockmore";
  
  #endif
  
  /*-
   * Copyright (c) 1991 by Patrick J. Naughton.
   *
   * Permission to use, copy, modify, and distribute this software and its
   * documentation for any purpose and without fee is hereby granted,
   * provided that the above copyright notice appear in all copies and that
   * both that copyright notice and this permission notice appear in
   * supporting documentation.
   *
   * This file is provided AS IS with no warranties of any kind.  The author
   * shall have no liability with respect to the infringement of copyrights,
   * trade secrets or any patents by this file or any part thereof.  In no
   * event will the author be liable for any lost revenue or profits or
   * other special, indirect and consequential damages.
   *
   * Revision History:
   * 10-May-1997: Compatible with xscreensaver :)  OK you probably should not
   *              use this for xscreensaver but I could not resist.
   * 21-Mar-1996: Ron Hitchens <ron@idiom.com>
   *		        Bonehead alert.  Don't blank during password prompting.
   * 19-Mar-1996: Ron Hitchens <ron@idiom.com>
   *		        Changed to activate X server's native screensaver.
   *		        On some devices, this will result in power saving "sleep"
   *		        mode, or video blanking.
   * 31-Aug-1990: Written.
   */
  
  #ifdef STANDALONE
  #define PROGCLASS "Blank"
  #define HACK_INIT init_blank
  #define HACK_DRAW draw_blank
  #define blank_opts xlockmore_opts
  #define DEFAULTS "*delay: 1000000 \n"
  #include "xlockmore.h"		/* in xscreensaver distribution */
  #else /* STANDALONE */
  #include "xlock.h"		/* in xlockmore distribution */
  #endif /* STANDALONE */
  
  ModeSpecOpt blank_opts =
  {0, (XrmOptionDescRec *) NULL, 0, (argtype *) NULL, (OptionStruct *) NULL};
  
  #ifdef USE_MODULES
  const ModStruct blank_description =
  {"blank", "init_blank", "draw_blank", "release_blank",
   "refresh_blank", "init_blank", (char *) NULL, &blank_opts,
   3000000, 1, 1, 1, 64, 1.0, "",
   "Shows nothing but a black screen", 0, NULL};
  
  #endif
  
  extern Bool enablesaver;
  
  void
  init_blank(ModeInfo * mi)
  {
  	MI_CLEARWINDOW(mi);
  	/* Must set PreferBlanking, or XForceScreenSaver won't work */
  	if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver)
  		XSetScreenSaver(MI_DISPLAY(mi), 0, 0, PreferBlanking, 0);
  }
  
  /* ARGSUSED */
  void
  draw_blank(ModeInfo * mi)
  {
  	/* Leave the lights on while user types password */
  	if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver) {
  		if (MI_IS_ICONIC(mi))
  			XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverReset);
  		else
  			XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverActive);
  	}
  }
  
  void
  release_blank(ModeInfo * mi)
  {
  	/* clear screensaver settings, just in case */
  	if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver) {
  		XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverReset);
  		XSetScreenSaver(MI_DISPLAY(mi), 0, 0, 0, 0);
  	}
  }
  
  void
  refresh_blank(ModeInfo * mi)
  {
  	/* Do nothing, it will refresh by itself :) */
  }