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/*
* XFrisk - The classic board game for X
* Copyright (C) 1993-1999 Elan Feingold (elan@aetherworks.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: help.c,v 1.4 1999/11/13 21:58:31 morphy Exp $
*/
#include <X11/X.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/List.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include "riskgame.h"
#include "network.h"
#include "types.h"
#include "help.h"
#include "client.h"
#include "gui-vars.h"
#include "callbacks.h"
#include "utils.h"
#include "debug.h"
static CString *pstrIndexCStrings;
static CString *pstrHelpCStrings;
static Int32 iNumHelpTopics=0;
/* The first is the default number of topics, and the latter is the
* number of new topics to allocate if we run out room.
*/
#define HELP_TOPICS 32
#define HELP_MORETOPICS 8
/************************************************************************
* FUNCTION: HELP_Init
* HISTORY:
* 04.01.94 ESF Created
* 04.02.94 ESF Added allocation of more memory if needed.
* PURPOSE:
* NOTES:
************************************************************************/
void HELP_Init(CString strHelpFile)
{
FILE *hHelpFile;
struct stat statBuf;
char *pHelpText;
Int32 i, j, iTopicsMemory = HELP_TOPICS;
char buf[256];
/* Allocate the default amount of room for the help topics */
pstrIndexCStrings = (CString *)MEM_Alloc(sizeof(CString)*iTopicsMemory);
pstrHelpCStrings = (CString *)MEM_Alloc(sizeof(CString)*iTopicsMemory);
/* Open the file, and find out its size to allocate memory for it */
if ((hHelpFile=UTIL_OpenFile(HELPFILE, "r"))==NULL)
{
#ifdef ENGLISH
snprintf(buf, sizeof(buf), "HELP: cannot open %s!", HELPFILE);
UTIL_PopupDialog("Fatal Error", buf, 1, "Ok", NULL, NULL);
#endif
#ifdef FRENCH
snprintf(buf, sizeof(buf), "HELP: impossible d'ouvrir %s!", HELPFILE);
UTIL_PopupDialog("Erreur fatale", buf, 1, "Ok", NULL, NULL);
#endif
UTIL_ExitProgram(-1);
}
if (fstat(fileno(hHelpFile), &statBuf)!=0)
{
#ifdef ENGLISH
UTIL_PopupDialog("Fatal Error", "HELP: Couldn't get size of file",
#endif
#ifdef FRENCH
UTIL_PopupDialog("Erreur fatale", "HELP: Impossible d'obtenir la "
"taille du fichier",
#endif
1, "Ok", NULL, NULL);
UTIL_ExitProgram(-1);
}
/* Read in the file after allocating room for it */
pHelpText = strHelpFile = (CString)MEM_Alloc(statBuf.st_size);
fread(strHelpFile, statBuf.st_size, 1, hHelpFile);
/* Search through the file for topics, filling out the tables of topic
* pointers as we go, and allocating more memory as needed. When we
* find an end of topic, stick a '\0' in, and erase '\n' since the
* text widget will do the word wrapping for us. This can be sped up!
*/
for (i=0; i!=statBuf.st_size; i++)
{
if (pHelpText[i] == '\n' &&
(pHelpText[i+1] == '\n' || pHelpText[i+1] == '\t'))
i++;
/* Stick in a blank as long as the last character wasn't a space */
else if (pHelpText[i] == '\n' && i>0 && pHelpText[i-1] != ' ')
pHelpText[i] = ' ';
else if (pHelpText[i] == '%' && pHelpText[i+1] == '%')
{
/* We've found the end of a topic */
pHelpText[i] = '\0';
i+=2;
}
else if (pHelpText[i] == '%')
{
/* We've found the beginning of a topic */
pstrIndexCStrings[iNumHelpTopics] = &pHelpText[i+1];
/* Find the beginning of the topic */
for (j=i; pHelpText[j]!='\n'; j++)
; /* TwiddleThumbs() */
pHelpText[j] = '\0';
pstrHelpCStrings[iNumHelpTopics++] = &pHelpText[j+1];
/* Allocate more memory? */
if (iNumHelpTopics > iTopicsMemory)
{
iTopicsMemory += HELP_MORETOPICS;
pstrHelpCStrings = (CString *)realloc(pstrHelpCStrings,
sizeof(CString)*
iTopicsMemory);
pstrIndexCStrings = (CString *)realloc(pstrIndexCStrings,
sizeof(CString)*
iTopicsMemory);
}
}
}
/* Put the index strings in the list widget */
XtVaSetValues(wHelpTopicList,
XtNlist, pstrIndexCStrings,
XtNnumberStrings, iNumHelpTopics,
NULL);
}
/************************************************************************
* FUNCTION:
* HISTORY:
* 04.01.94 ESF Created
* PURPOSE:
* NOTES:
************************************************************************/
void HELP_IndexPopupHelp(Int32 iTopic)
{
if (iTopic<0 || iTopic>=iNumHelpTopics)
{
UTIL_PopupDialog("Warning", "HELP: Topic not available!",
1, "Ok", NULL, NULL);
return;
}
XtVaSetValues(wHelpLabel,
XtNlabel, pstrIndexCStrings[iTopic],
NULL);
XtVaSetValues(wHelpText,
XtNstring, pstrHelpCStrings[iTopic],
NULL);
}
/************************************************************************
* FUNCTION:
* HISTORY:
* 04.01.94 ESF Created
* PURPOSE:
* NOTES:
************************************************************************/
void HELP_CStringPopupHelp(CString strTopic)
{
UNUSED(strTopic);
D_Assert(FALSE, "Not implemented!");
}
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