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Diffstat (limited to 'gnu/lib/libdialog/help.c')
| -rw-r--r-- | gnu/lib/libdialog/help.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/gnu/lib/libdialog/help.c b/gnu/lib/libdialog/help.c deleted file mode 100644 index de49c6a..0000000 --- a/gnu/lib/libdialog/help.c +++ /dev/null @@ -1,194 +0,0 @@ -/*************************************************************** - * - * Program: help.c - * Author: Marc van Kempen - * Desc: get help - * - * - * Copyright (c) 1995, Marc van Kempen - * - * All rights reserved. - * - * This software may be used, modified, copied, distributed, and - * sold, in both source and binary form provided that the above - * copyright and these terms are retained, verbatim, as the first - * lines of this file. Under no circumstances is the author - * responsible for the proper functioning of this software, nor does - * the author assume any responsibility for damages incurred with - * its use. - * - ***************************************************************/ - -#include <stdlib.h> -#include <sys/param.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <string.h> -#include <dialog.h> - -static char _helpfilebuf[MAXPATHLEN]; -static char _helplinebuf[77]; /* limit the helpline to 76 characters */ -static char *_helpfile = NULL; -static char *_helpline = NULL; - -/****************************************************************** - * - * helpfile routines - * - ******************************************************************/ - -void -use_helpfile(char *hfile) -/* - * desc: set the helpfile to be opened on pressing F1 to <helpfile> - */ -{ - if (hfile != NULL) { - _helpfile = _helpfilebuf; - strcpy(_helpfile, hfile); - } else { - _helpfile = NULL; - } - - return; -} /* use_helpfile() */ - -void -display_helpfile(void) -/* - * desc: display the current helpfile in a window - */ -{ - WINDOW *w; - FILE *f; - struct stat sb; - char msg[80], *buf; - static int in_help = FALSE; - char *savehline = NULL; - - if (in_help) return; /* dont call help when you're in help */ - - if (_helpfile != NULL) { - if ((w = dupwin(newscr)) == NULL) { - dialog_notify("No memory to dup previous screen\n"); - return; - } - if ((f = fopen(_helpfile, "r")) == NULL) { - sprintf(msg, "Can't open helpfile : %s\n", _helpfile); - dialog_notify(msg); - return; - } - if (fstat(fileno(f), &sb)) { - sprintf(msg, "Can't stat helpfile : %s\n", _helpfile); - dialog_notify(msg); - return; - } - if ((buf = (char *) malloc( sb.st_size )) == NULL) { - sprintf(msg, "Could not malloc space for helpfile : %s\n", _helpfile); - dialog_notify(msg); - return; - } - if (fread(buf, 1, sb.st_size, f) != sb.st_size) { - sprintf(msg, "Could not read entire help file : %s", _helpfile); - dialog_notify(msg); - free(buf); - return; - } - buf[sb.st_size] = 0; - in_help = TRUE; - savehline = get_helpline(); - use_helpline("Use arrowkeys, PgUp, PgDn, Home and End to move through text"); - dialog_mesgbox("Online help", buf, LINES-4, COLS-4); - restore_helpline(savehline); - in_help = FALSE; - touchwin(w); - wrefresh(w); - delwin(w); - free(buf); - } else { - /* do nothing */ - } - - return; -} /* display_helpfile() */ - - -/****************************************************************** - * - * helpline routines - * - ******************************************************************/ - -void -use_helpline(char *hline) -/* - * desc: set the helpline to printed in dialogs - */ -{ - if (hline) { - _helpline = _helplinebuf; - if (strlen(hline) > 76) { - /* only display the first 76 characters in the helpline */ - strncpy(_helpline, hline, 76); - _helpline[76] = 0; - } else { - strcpy(_helpline, hline); - } - } else { - _helpline = NULL; - } - - return; -} /* use_helpline() */ - -void -display_helpline(WINDOW *w, int y, int width) -/* - * desc: display the helpline at the given coordinates <y, x> in the window <w> - */ -{ - if (_helpline != NULL) { - if (strlen(_helpline) > width - 6) { - _helpline[width - 6] = 0; - } - wmove(w, y, (int) (width - strlen(_helpline)- 4) / 2); - wattrset(w, title_attr); - waddstr(w, "[ "); - waddstr(w, _helpline); - waddstr(w, " ]"); - } else { - /* do nothing */ - } - - return; -} - -char * -get_helpline(void) -/* - * desc: allocate new space, copy the helpline to it and return a pointer to it - */ -{ - char *hlp; - - if (_helpline) { - hlp = (char *) malloc( strlen(_helpline) + 1 ); - strcpy(hlp, _helpline); - } else { - hlp = NULL; - } - - return(hlp); -} /* get_helpline() */ - -void -restore_helpline(char *helpline) -/* - * Desc: set the helpline to <helpline> and free the space allocated to it - */ -{ - use_helpline(helpline); - free(helpline); - - return; -} /* restore_helpline() */ |
