/* 
 * tixAppInit.c --
 *
 *	Provides a default version of the Tcl_AppInit procedure for
 *	use in wish and similar Tk-based applications.
 *
 * Copyright (c) 1995 Ioi K Lam
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <tcl.h>
#include <tk.h>
#include <tix.h>

/*
 * The following variable is a special hack that is needed in order for
 * Sun shared libraries to be used for Tcl.
 */

extern int matherr();
int *tclDummyMathPtr = (int *) matherr;

/* A function which translates button events to wheel events */
int mousewheel_proc(ClientData cd, XEvent *eventPtr) {
    if (eventPtr->type != ButtonPress && eventPtr->type != ButtonRelease)
	return 0;

    if (eventPtr->xbutton.button != 4 && eventPtr->xbutton.button != 5)
	return 0;

    if (eventPtr->type == ButtonRelease)
	return 1;

    eventPtr->type = MouseWheelEvent;
    if (eventPtr->xbutton.button == 4) {
	eventPtr->xkey.keycode = 120;
    } else {
	eventPtr->xkey.keycode = -120;
    }

    return 0;
}

void register_mousewheel_proc(void) {
    Tk_CreateGenericHandler( mousewheel_proc, 0 );
}


/*
 *----------------------------------------------------------------------
 *
 * main --
 *
 *	This is the main program for the application.
 *
 * Results:
 *	None: Tk_Main never returns here, so this procedure never
 *	returns either.
 *
 * Side effects:
 *	Whatever the application does.
 *
 *----------------------------------------------------------------------
 */

int
main(argc, argv)
    int argc;			/* Number of command-line arguments. */
    char **argv;		/* Values of command-line arguments. */
{

  char *pwd, *foo, *bar, *baz;

  pwd = strdup(argv[0]);

  for(foo = pwd; (bar = strstr(foo, "/bin/")) != NULL; foo = ++bar);
  if(foo != NULL && strstr(foo, "bin/") != NULL) {
    *foo = (char)0;
    bar = (char *)malloc(strlen("TCL_LIBRARY=") + strlen(pwd) + 42);
    baz = (char *)malloc(strlen("BLT_LIBRARY=") + strlen(pwd) + 42);
    sprintf(bar, "TCL_LIBRARY=%slib/tcl8.4", pwd);
    putenv(bar);
    sprintf(baz, "BLT_LIBRARY=%slib/blt2.4", pwd);
    putenv(baz);
  } /* if */
  free(pwd);

    Tk_Main(argc, argv, Tcl_AppInit);
    return 0;			/* Needed only to prevent compiler warning. */
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *	This procedure performs application-specific initialization.
 *	Most applications, especially those that incorporate additional
 *	packages, will have their own version of this procedure.
 *
 * Results:
 *	Returns a standard Tcl completion code, and leaves an error
 *	message in interp->result if an error occurs.
 *
 * Side effects:
 *	Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_AppInit(interp)
    Tcl_Interp *interp;		/* Interpreter for application. */
{
    if (Tcl_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    if (Tk_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "Tk",  Tk_Init,  (Tcl_PackageInitProc *) NULL);
    if (Tix_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "Tix", Tix_Init, (Tcl_PackageInitProc *) NULL);

    /*
     * Call the init procedures for included packages.  Each call should
     * look like this:
     *
     * if (Mod_Init(interp) == TCL_ERROR) {
     *     return TCL_ERROR;
     * }
     *
     * where "Mod" is the name of the module.
     */
    if (Blt_Init(interp) != TCL_OK) {
      return TCL_ERROR;
    }
    if (Tktable_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    if (oe_init(interp) != TCL_OK) {
      return TCL_ERROR;
    }

    /*
     * Call Tcl_CreateCommand for application-specific commands, if
     * they weren't already created by the init procedures called above.
     */


    /*
     * Specify a user-specific startup file to invoke if the application
     * is run interactively.  Typically the startup file is "~/.apprc"
     * where "app" is the name of the application.  If this line is deleted
     * then no user-specific startup file will be run under any conditions.
     */
    Tix_SetRcFileName(interp, "~/.swishrc");

    return TCL_OK;
}