#include "Hp33220uir.h"

/*	**************************************************************  */
/*
 *	Module HP33220UI
 *	This module contains functions for the HP33220 function generator
 *	user interface.                 
 *
 *	Zachary Wolf
 *	8/26/04
 */

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

/*  INCLUDES  */
#include <utility.h>
#include <ansi_c.h>
#include <cvirte.h>		/* Needed if linking in external compiler; harmless otherwise */
#include <userint.h>
#include "hp33220uir.h"
#include "hp33220ui.h"
#include "hp33220.h"

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

/*  PRIVATE VARIABLES  */
static int hp33220_ID;
static int hp33220_panel;

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

/*  PRIVATE FUNCTION DECLARATIONS  */
void hp33220ui_error(char* msg);

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

/*  PUBLIC FUNCTIONS  */

/*	**************************************************************  */
/*
 *	hp33220ui_init
 *  This function initializes the user interface for the HP33220 DMM.
 *
 *	Input:
 *	ID, HP33220 device identifier
 *
 *	Zachary Wolf
 *	8/26/04
 */

void hp33220ui_init(int ID)
{
	/* Save the HP33220 ID */
	hp33220_ID = ID;
	
	/* Open the HP33220 panel */
	hp33220_panel = LoadPanel(0, "hp33220uir.uir", HPPANEL);
	if (hp33220_panel < 0)
	{
		hp33220ui_error("Could not open user interface panel");
		return;
	}
	
	/* Display the panel when the user interface runs */
	DisplayPanel(hp33220_panel);
	
	/* Done */
	return;
}

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

/*  PRIVATE FUNCTIONS  */

/*	**************************************************************  */
/*
 *	hp33220ui_error
 *  This function handles error messages for the HP33220 user interface.
 *
 *	Input:
 *	message, string to display in standard I/O
 *
 *	Zachary Wolf
 *	8/26/04
 */

void hp33220ui_error(char* message)
{
	/* Declare variables */
	char buf[80];
	
	/* Notify the operator of the error */
	printf("\nHP33220UI 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 hp33220ui_quit(int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	switch (event)
	{
		case EVENT_COMMIT:
			hp33220_exit(hp33220_ID);
			QuitUserInterface(0);

			break;
		case EVENT_RIGHT_CLICK:

			break;
	}
	return 0;
}

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

int CVICALLBACK hp33220ui_set (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int waveform;
	double ampl;
	double freq;
	double offset;
	
	switch (event)
		{
		case EVENT_COMMIT:
			GetCtrlVal(panel, HPPANEL_RING_WAVEFORM, &waveform);
			GetCtrlVal(panel, HPPANEL_NUMERIC_AMPL, &ampl);
			GetCtrlVal(panel, HPPANEL_NUMERIC_FREQ, &freq);
			GetCtrlVal(panel, HPPANEL_NUMERIC_DC_OFFSET, &offset);
			if (waveform == 0)
				hp33220_output_sine(hp33220_ID, ampl, freq);
			else if (waveform == 1)
				hp33220_output_square(hp33220_ID, ampl, freq, 50.);
			else if (waveform == 2)
				hp33220_output_ramp(hp33220_ID, ampl, freq, 100.);
			else
				hp33220ui_error("hp33220ui_set: Unknown waveform.");
			hp33220_set_dc_offset(hp33220_ID, offset);

			break;
		}
	return 0;
}