/*	Hugh Fisher Feb 92

	Program to display and edit the numerical
	values in a GMT binary grid file.	*/

#include <gmt.h>
#include <stdio.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>

#include <X11/Xaw/Form.h>
#include <X11/Xaw/Paned.h>

#include "xgrid_utility.h"
#include "xgrid_controls.h"
#include "xgrid_messages.h"
#include "xgrid_view.h"
#include "xgrid_textInput.h"

static Boolean done;

/****	Local procedures  ****/

static void usage (); /* String argv[] */
static void quitGridEdit (); /* Widget w, void * callData, void * clientData */

static void usage (argv)
	String argv[];
{
  printf("Usage: %s <grid file name>\n", argv[0]);
}

static void quitGridEdit (w, call, client)
	Widget	w;
	void *	call;
	void *	client;
{
  /* There may be more than one callback on the Quit button, and
     the order of execution is undefined. We therefore can't
     destroy the application context, call exit, or similar
     destructive actions.					*/
  done = True;
}

int main (argc, argv)
  int argc;
  String argv[];
{
  XtAppContext self;
  String gridFileName;
  Widget shell;
  Widget frame;
  Widget control, view, message;
  Arg    args[8];
  int    nargs;
  XEvent event;

  GMT_grdio_init ();
  GMT_program = argv[0];
  GMT_make_dnan (GMT_d_NaN);
  GMT_grd_in_nan_value = GMT_grd_out_nan_value = GMT_d_NaN;

  /* This is a pretty simple application, so don't bother
     with WM_TAKE_FOCUS messages.	*/
  nargs = 0;
  XtSetArg(args[nargs], XtNinput, True); nargs ++;  
  shell = XtAppInitialize(&self, "XGridEdit", NULL, 0, &argc, argv,
  		NULL, args, nargs);
  
  if (argc != 2) {
    usage(argv);
    XtDestroyApplicationContext(self);
    exit(1);
  } else {
    gridFileName = argv[1];
    /* Change app title to that of file. Should really
       have application name + file name */
    XtVaSetValues(shell, XtNtitle, gridFileName, NULL);
  }
      
  frame = XtCreateManagedWidget("frame", panedWidgetClass, shell, NULL, 0);

  /* Control bar: see controls.c */
  nargs = 0;
  XtSetArg(args[nargs], XtNshowGrip, False); nargs ++;
  XtSetArg(args[nargs], XtNskipAdjust, True); nargs ++;
  control = createControlBar("control", frame, args, nargs);

  addQuitCallback(quitGridEdit, NULL);
  createFileCommands(control);	/* view.c */
  createTextInputArea(control);	/* textInput.c */
  
  /* Display widget: see view.c */
  nargs = 0;
  XtSetArg(args[nargs], XtNshowGrip, False); nargs ++;
  XtSetArg(args[nargs], XtNskipAdjust, False); nargs ++;
  view = createView(gridFileName, frame, args, nargs);
  
  /* Status/info line: see messages.c */
  nargs = 0;
  XtSetArg(args[nargs], XtNshowGrip, False); nargs ++;
  XtSetArg(args[nargs], XtNskipAdjust, True); nargs ++;
  message = createMessageLine("message", frame, args, nargs);

  XtRealizeWidget(shell);

  /* Don't use XtAppMainLoop: see quit routine for reason */  
  done = False;
  while (! done) {
    XtAppNextEvent(self, &event);
    XtDispatchEvent(&event);
  }
  XtDestroyApplicationContext(self);
  exit(0);
}