/****************************************************************

                      Uebungen zur Vorlesung
		  "Graphische Datenverarbeitung"
                       Sommersemester  1996

       Programm: hallo.c
       Autor:    Christian Boehm

****************************************************************/

# include <stdio.h>
# include <stdlib.h>
# include <Xm/Xm.h>
# include <Xm/RowColumn.h>
# include <Xm/Label.h>
# include <Xm/PushB.h>

void halloCB (Widget dum1, XtPointer dum2, XtPointer dum3)
{
	static int count = 0 ;
	printf ("%3d. Hallo\n", ++count) ;
}

void exitCB (Widget dum1, XtPointer dum2, XtPointer dum3)
{
	exit (0) ;
}

void InitWidgetBaum (Widget applShell)
{
	Widget box, box2, exitBt, halloBt ;
	box = 	XtCreateManagedWidget	("box", xmRowColumnWidgetClass,
			 applShell, (Arg*)NULL, 0);
		XtCreateManagedWidget	("titel", xmLabelWidgetClass,
			 box, (Arg*)NULL, 0);
	box2 = 	XtCreateManagedWidget	("box2", xmRowColumnWidgetClass,
			 box, (Arg*)NULL, 0) ;
	halloBt =	XtCreateManagedWidget	("hallo", xmPushButtonWidgetClass,
                           			 box2, (Arg*)NULL, 0);
	exitBt =	XtCreateManagedWidget	("exit", xmPushButtonWidgetClass,
			 box2, (Arg*)NULL, 0);
	XtAddCallback (halloBt, XmNactivateCallback, halloCB, (XtPointer)NULL);
	XtAddCallback (exitBt, XmNactivateCallback, exitCB, (XtPointer)NULL);
}

static char * fallbackRessourcen [] = {
	"*titel.labelString: Titelzeile",
	"*hallo.labelString: Hallo !",
	"*box2.orientation:     horizontal",
	NULL
} ;

main (int argc, char ** argv)
{
	XtAppContext kontext;        /* Applikations-Umgebung */
	Widget       applShell;      /* Applikations-Shell */

	applShell = XtAppInitialize (&kontext, "Hallo",
                                 (XrmOptionDescRec*)NULL, 0,
                                 &argc, argv, fallbackRessourcen,
                                 (Arg*)NULL, 0);

	InitWidgetBaum (applShell);
	XtRealizeWidget (applShell);
	XtAppMainLoop (kontext);
}