/*	**************************************************************  */
/*
 *	Module HP3457UI
 *	This module contains functions for the HP3457 multimeter
 *	user interface.                 
 *
 *	Zachary Wolf
 *	8/3/98
 */

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

/*  INCLUDES  */
#include <utility.h>
#include <ansi_c.h>
#include <cvirte.h>		/* Needed if linking in external compiler; harmless otherwise */
#include <userint.h>
#include "hp3457uir.h"
#include "hp3457ui.h"
#include "hp3457.h"

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

/*  PRIVATE VARIABLES  */
static int hp3457_ID;
static int hp3457_panel;

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

/*  PRIVATE FUNCTION DECLARATIONS  */
void hp3457ui_error(char* msg);

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

/*  PUBLIC FUNCTIONS  */

/*	**************************************************************  */
/*
 *	hp3457ui_init
 *  This function initializes the user interface for the HP3457 DMM.
 *
 *	Input:
 *	ID, HP3457 device identifier
 *
 *	Zachary Wolf
 *	8/3/98
 */

void hp3457ui_init(int ID)
{
	/* Save the HP3457 ID */
	hp3457_ID = ID;
	
	/* Open the HP3457 panel */
	hp3457_panel = LoadPanel(0, "hp3457uir.uir", HPPANEL);
	if (hp3457_panel < 0)
	{
		hp3457ui_error("Could not open user interface panel");
		return;
	}
	
	/* Display the panel when the user interface runs */
	DisplayPanel(hp3457_panel);
	
	/* Done */
	return;
}

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

/*  PRIVATE FUNCTIONS  */

/*	**************************************************************  */
/*
 *	hp3457ui_error
 *  This function handles error messages for the HP3457 user interface.
 *
 *	Input:
 *	message, string to display in standard I/O
 *
 *	Zachary Wolf
 *	8/3/98
 */

void hp3457ui_error(char* message)
{
	/* Declare variables */
	char buf[80];
	
	/* Notify the operator of the error */
	printf("\nHP3457UI ERROR: %s\n", message);
	Beep();
	Delay(.5);
	Beep();
	
	/* Terminate the program if the operator desires */
	printf("Press ENTER to continue.\nPress any key then ENTER to terminate program.\n");
	fgets(buf, 80, stdin);
	if (buf[0] == '\n') return;
	else exit(0);
}

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

/*  PRIVATE USER INTERFACE FUNCTIONS  */

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

int CVICALLBACK hp3457ui_quit(int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	switch (event)
	{
		case EVENT_COMMIT:
			hp3457_exit(hp3457_ID);
			QuitUserInterface(0);

			break;
		case EVENT_RIGHT_CLICK:

			break;
	}
	return 0;
}

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

int CVICALLBACK hp3457ui_get_chan_voltage(int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int chan;
	double voltage;
	switch (event)
	{
		case EVENT_COMMIT:
			GetCtrlVal(hp3457_panel, HPPANEL_HP3457_CHAN, &chan);
			hp3457_get_chan_voltage(hp3457_ID, chan, &voltage);
			SetCtrlVal(hp3457_panel, HPPANEL_HP3457_CHAN_VOLTAGE, voltage);

			break;
		case EVENT_RIGHT_CLICK:

			break;
	}
	return 0;
}