// $Source: /usr/local/SimSoft/Sfx3D/src/gts/Gts.cpp,v $
// $Revision: 1.2 $
// $Author: baum $
// $Date: 2001/11/29 15:18:10 $
//
// Login name of the user who locked the revision
// $Locker:  $
// Tag name used to checkout the file
// $Name: Release-14 $
// State assigned to revision
// $State: Exp $
//
//
// $Log: Gts.cpp,v $
// Revision 1.2  2001/11/29 15:18:10  baum
// -Realzeitsteuerung eingebaut
// -Handsteuerung eingebaut
//

#ifdef WIN32
#include <windows.h>
#include <malloc.h>
#include <locale.h>
#endif

#include <tk.h>
#include "ProgArgs.h"
#include "Messager.h"
#include "StrmSet.h"
#include "FileSys.h"

/*
#ifndef TIX_LIBRARY
#define TIX_LIBRARY "../../lib/tix8.1"
#endif
*/

//extern void Tk_MyMain(int argc, char** argv, Tcl_AppInitProc *appInitProc);

#ifdef WIN32
/*
 * Forward declarations for procedures defined later in this file:
 */

//static void		setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
//static void		WishPanic _ANSI_ARGS_(TCL_VARARGS(CONST char *,format));

/*
 * The following #if block allows you to change the AppInit
 * function by using a #define of TCL_LOCAL_APPINIT instead
 * of rewriting this entire file.  The #if checks for that
 * #define and uses Tcl_AppInit if it doesn't exist.
 */
    
#ifndef TK_LOCAL_APPINIT
#define TK_LOCAL_APPINIT Tcl_AppInit    
#endif
extern int TK_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
    
/*
 *----------------------------------------------------------------------
 *
 * WishPanic --
 *
 *	Display a message and exit.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Exits the program.
 *
 *----------------------------------------------------------------------
 */

void
WishPanic TCL_VARARGS_DEF(CONST char *,arg1)
//WishPanic TCL_VARARGS_DEF(char *,arg1)
{
    va_list argList;
    char buf[1024];
    CONST char *format;
    
    format = TCL_VARARGS_START(CONST char *,arg1,argList);
    vsprintf(buf, format, argList);

    MessageBeep(MB_ICONEXCLAMATION);
    MessageBox(NULL, buf, "Fatal Error in GTS",
	    MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND);
#ifdef _MSC_VER
    DebugBreak();
#endif
    ExitProcess(1);
}

/*
 *-------------------------------------------------------------------------
 *
 * setargv --
 *
 *	Parse the Windows command line string into argc/argv.  Done here
 *	because we don't trust the builtin argument parser in crt0.  
 *	Windows applications are responsible for breaking their command
 *	line into arguments.
 *
 *	2N backslashes + quote -> N backslashes + begin quoted string
 *	2N + 1 backslashes + quote -> literal
 *	N backslashes + non-quote -> literal
 *	quote + quote in a quoted string -> single quote
 *	quote + quote not in quoted string -> empty string
 *	quote -> begin quoted string
 *
 * Results:
 *	Fills argcPtr with the number of arguments and argvPtr with the
 *	array of arguments.
 *
 * Side effects:
 *	Memory allocated.
 *
 *--------------------------------------------------------------------------
 */

static void
setargv(int * argcPtr, char ***argvPtr)
    //int *argcPtr;		/* Filled with number of argument strings. */
    //char ***argvPtr;		/* Filled with argument strings (malloc'd). */
{
    char *cmdLine, *p, *arg, *argSpace;
    char **argv;
    int argc, size, inquote, copy, slashes;
    
    cmdLine = GetCommandLine();	/* INTL: BUG */

    /*
     * Precompute an overly pessimistic guess at the number of arguments
     * in the command line by counting non-space spans.
     */

    size = 2;
    for (p = cmdLine; *p != '\0'; p++) {
	if ((*p == ' ') || (*p == '\t')) {	/* INTL: ISO space. */
	    size++;
	    while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
		p++;
	    }
	    if (*p == '\0') {
		break;
	    }
	}
    }
    argSpace = (char *) Tcl_Alloc(
	    (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
    argv = (char **) argSpace;
    argSpace += size * sizeof(char *);
    size--;

    p = cmdLine;
    for (argc = 0; argc < size; argc++) {
	argv[argc] = arg = argSpace;
	while ((*p == ' ') || (*p == '\t')) {	/* INTL: ISO space. */
	    p++;
	}
	if (*p == '\0') {
	    break;
	}

	inquote = 0;
	slashes = 0;
	while (1) {
	    copy = 1;
	    while (*p == '\\') {
		slashes++;
		p++;
	    }
	    if (*p == '"') {
		if ((slashes & 1) == 0) {
		    copy = 0;
		    if ((inquote) && (p[1] == '"')) {
			p++;
			copy = 1;
		    } else {
			inquote = !inquote;
		    }
                }
                slashes >>= 1;
            }

            while (slashes) {
		*arg = '\\';
		arg++;
		slashes--;
	    }

	    if ((*p == '\0')
		    || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
		break;
	    }
	    if (copy != 0) {
		*arg = *p;
		arg++;
	    }
	    p++;
        }
	*arg = '\0';
	argSpace = arg + 1;
    }
    argv[argc] = NULL;

    *argcPtr = argc;
    *argvPtr = argv;
}

/*
 *----------------------------------------------------------------------
 *
 * WinMain --
 *
 *	Main entry point from Windows.
 *
 * Results:
 *	Returns false if initialization fails, otherwise it never
 *	returns. 
 *
 * Side effects:
 *	Just about anything, since from here we call arbitrary Tcl code.
 *
 *----------------------------------------------------------------------
 */

#ifdef __BORLANDC__
#pragma argsused
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int) {
#else
int APIENTRY WinMain (HINSTANCE /*hInstance*/, HINSTANCE /*hPrevInstance*/,
                      LPSTR /*lpszCmdLine*/, int /*nCmdShow*/) {
#endif
    char **argv;
    int argc;
    char buffer[MAX_PATH+1];
    char *p;

    Tcl_SetPanicProc(WishPanic);

    /*
     * Set up the default locale to be standard "C" locale so parsing
     * is performed correctly.
     */

    setlocale(LC_ALL, "C");
    setargv(&argc, &argv);

    /*
     * Replace argv[0] with full pathname of executable, and forward
     * slashes substituted for backslashes.
     */

    GetModuleFileName(NULL, buffer, sizeof(buffer));
    argv[0] = buffer;
    for (p = buffer; *p != '\0'; p++) {
	    if (*p == '\\') {
	      *p = '/';
	    }
    }

#else
int main ( int argc, char **argv ) {
#endif

    ProgArgs::setup (argc, argv);
    if (!StdStreamControl::isInitialized ()) StdStreamControl::setup ();
    if (!Messager::isInitialized ()) Messager::setup ();
    if (!FileSystem::isInitialized ()) FileSystem::setup ();      

    Tk_Main(argc, argv, TK_LOCAL_APPINIT);

    if (FileSystem::isInitialized ()) FileSystem::cleanup ();
    if (Messager::isInitialized ()) Messager::cleanup ();
    if (StdStreamControl::isInitialized ()) StdStreamControl::cleanup ();
    ProgArgs::cleanup ();
    return 1;
}

