HoHCI-BikeSteering/External/antplus_simulator_src/devices/GeocacheSensor.cpp

/*******************************************************************************
 * THE FOLLOWING EXAMPLE CODE IS INTENDED FOR LIMITED CIRCULATION ONLY.
 * 
 * Please forward all questions regarding this code to ANT Technical Support.
 * 
 * Dynastream Innovations Inc.
 * 
 * (P) +1 403 932 9292
 * (F) +1 403 932 4196
 * (E) support@thisisant.com
 * 
 * www.thisisant.com
 *
 * Reference Design Disclaimer
 *
 * The references designs and codes provided may be used with ANT devices only and remain the copyrighted property of 
 * Dynastream Innovations Inc. The reference designs and codes are being provided on an "as-is" basis and as an accommodation, 
 * and therefore all warranties, representations, or guarantees of any kind (whether express, implied or statutory) including, 
 * without limitation, warranties of merchantability, non-infringement,
 * or fitness for a particular purpose, are specifically disclaimed.
 *
 * ©2012 Dynastream Innovations Inc. All Rights Reserved
 * This software may not be reproduced by
 * any means without express written approval of Dynastream
 * Innovations Inc.
 *
 *******************************************************************************/


#pragma once
#include "stdafx.h"
#include "GeocacheSensor.h"
#include "antmessage.h"

using namespace System::Runtime::InteropServices;

static ULONG ulMessageCount = 0;
static UCHAR ucPageCount = 0;

static BOOL bCloseEvent = FALSE;	


/**************************************************************************
* GeocacheSensor::InitializeSim
* 
* Initialize the simulator variables
*
* returns: N/A
*
**************************************************************************/
void GeocacheSensor::InitializeSim()
{
	ulTimerInterval = 250; // in ms - simulates the sensor sending the most relevant information every message period
	ulTotalTime = 0;

	// initialize Geocache
	GeocacheData->InitSensor();
	GeocacheData->ucTotalPages = GeocacheData->START_PROG_PAGES;
	GeocacheData->usMessagePeriod = GeocacheData->MESG_P5HZ_PERIOD;	// Defaults to Beacon Rate of 0.5Hz
	GeocacheData->b4HzRotation = FALSE;

	// required common pages
	commonData->ulSerialNum = System::Convert::ToUInt32(this->textBox_Glb_SerialNumChange->Text);
	commonData->ucSwVersion = System::Convert::ToByte(this->textBox_Glb_SoftwareVerChange->Text);
	commonData->ucHwVersion = System::Convert::ToByte(this->textBox_Glb_HardwareVerChange->Text);
	commonData->usMfgID = System::Convert::ToUInt16(this->textBox_Glb_ManfIDChange->Text);
	commonData->usModelNum = System::Convert::ToUInt16(this->textBox_Glb_ModelNumChange->Text);

	//battery common page
	commonData->bBattPageEnabled = TRUE;
	// update the variables
	UpdateBatStatus();
	commonData->eTimeResolution = CommonData::TimeResolution::TWO;
	commonData->ulOpTime = ulTotalTime / (UCHAR) commonData->eTimeResolution;
	commonData->usBatVoltage256 = ((USHORT) System::Convert::ToByte(this->numericUpDown_Bat_VoltInt->Value)) << 8 | (commonData->usBatVoltage256 & 0xFF);	// Integer portion in high byte
	commonData->usBatVoltage256 |= System::Convert::ToByte(this->numericUpDown_Bat_VoltFrac->Value) | (commonData->usBatVoltage256 & 0xFF00);	// Fractional portion in low byte
	commonData->eTimeResolution = CommonData::TimeResolution::TWO;
	commonData->ulOpTime = ulTotalTime;
}

/**************************************************************************
* GeocacheSensor::ANT_eventNotification
* 
* Process ANT channel event
*
* ucEventCode_: code of ANT channel event
* pucEventBuffer_: pointer to buffer containing data received from ANT,
*		or a pointer to the transmit buffer in the case of an EVENT_TX
* 
* returns: N/A
*
**************************************************************************/
void GeocacheSensor::ANT_eventNotification(UCHAR ucEventCode_, UCHAR* pucEventBuffer_)
{
	switch(ucEventCode_)
	{
	case EVENT_TX:
		HandleTransmit((UCHAR*) pucEventBuffer_);
		break;

	case EVENT_RX_BROADCAST:
	case EVENT_RX_ACKNOWLEDGED:
		HandleReceive((UCHAR*) pucEventBuffer_);
		break;

	case EVENT_TRANSFER_TX_COMPLETED:
		UpdateDisplayAckStatus(GeocacheData->ACK_SUCCESS);
		break;

	case EVENT_ACK_TIMEOUT:	
	case EVENT_TRANSFER_TX_FAILED: // intentional fall through
		UpdateDisplayAckStatus(GeocacheData->ACK_FAIL);
		break;

	case MESG_CLOSE_CHANNEL_ID:
		bCloseEvent = TRUE;
		break;

	default:
		break;
	}
}

/**************************************************************************
 * GeocacheSensor::HandleReceive
 * 
 * Handle incoming (GPS) requests
 *
 * pucRxBuffer_: pointer to the receive buffer
 * 
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::HandleReceive(UCHAR* pucRxBuffer_)
{
	ulMessageCount = 0;	// Reset Message Counter on Any Request

	// Change to 4Hz and begin Page Rotation on *ANY* RX
	if (!GeocacheData->b4HzRotation)
	{
		GeocacheData->b4HzRotation = TRUE;
		GeocacheData->usMessagePeriod = GeocacheData->MESG_4HZ_PERIOD;
		requestUpdateMesgPeriod(GeocacheData->MESG_4HZ_PERIOD);
	}

	if (pucRxBuffer_[0] == commonData->PAGE70)	// Data Page Request
	{
		GeocacheData->ucRequestedPageNum = pucRxBuffer_[6];

		// How should we respond ?  Broadcast (added to Page Rotation) or Ack'd ?
		if (pucRxBuffer_[5] == GeocacheData->MESG_REQ_RESP_ACK)
			GeocacheData->bAckResponseRequest = TRUE;
		else
			GeocacheData->bAckResponseRequest = FALSE;

		switch (GeocacheData->ucRequestedPageNum)	// Get Requested Page # 
		{
			case GeocacheData->PAGE_1 :
				GeocacheData->GetPageData(GeocacheData->ucRequestedPageNum, pucRxBuffer_);

				// Start Point for Page Rotation
				if (GeocacheData->ucTotalPages > 2)			
					ucPageCount = GeocacheData->PAGE_2;
				else
					ucPageCount = commonData->PAGE80;

				break;

			case commonData->PAGE80 :
				commonData->Encode(commonData->PAGE80, pucRxBuffer_);
				break;

			case commonData->PAGE81 :
				commonData->Encode(commonData->PAGE81, pucRxBuffer_);
				break;

			case commonData->PAGE82 :
				if (commonData->bBattPageEnabled)
				{
					commonData->Encode(commonData->PAGE82, pucRxBuffer_);
				}
				break;

			default:
				GeocacheData->GetPageData(GeocacheData->ucRequestedPageNum, pucRxBuffer_);
				break;

		}
		// Broadcast (added to Page Rotation) or Ack'd ?
		if (GeocacheData->bAckResponseRequest)
		{
			requestAckMsg(pucRxBuffer_);
		}
		else
		{
			GeocacheData->bPageRequest = TRUE;
		}
	}
	else if (pucRxBuffer_[0] < GeocacheData->PAGE_32)	// GPS is Programming Pages
	{
		GeocacheData->Decode(pucRxBuffer_);
	}
	else if (pucRxBuffer_[0] == GeocacheData->PAGE_32)	// Authentication Request
	{
		Authentication(pucRxBuffer_);
		GeocacheData->bPageRequest = TRUE;
		GeocacheData->ucRequestedPageNum = pucRxBuffer_[0];
	}
}

/**************************************************************************
 * Geocache::Authentication
 * 
 * Generate Authentication Token from GPS Serial # and Nonce
 *
 *
 * pucRxBuffer_: pointer to the buffer containing the received data
 * 
 * returns: N/A
 *
 **************************************************************************/
using namespace System::Security::Cryptography;

void GeocacheSensor::Authentication(UCHAR* pucRxBuffer_)
{
	cli::array<Byte>^ Nonce_SerialNum = gcnew cli::array<Byte>(6);
	for (int i=0; i<6; i++) Nonce_SerialNum[i] = (byte)pucRxBuffer_[2+i];

	HashAlgorithm^ sha = gcnew SHA1CryptoServiceProvider;

	array<Byte>^ result = sha->ComputeHash( Nonce_SerialNum );

	for (int i=0; i<7; i++)
		GeocacheData->ucAuthToken[i] = (UCHAR)result[i];
}	

/**************************************************************************
 * GeocacheSensor::HandleTransmit
 * 
 * Encode data generated by simulator for transmission
 *
 * ucPageNum_: The page number to be transmitted
 * pucTxBuffer_: pointer to the transmit buffer
 * 
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::HandleTransmit(UCHAR* pucTxBuffer_)
{
	// Kill Page Requests and Switch to 0.5Hz Beacon Mode
	if (bCloseEvent)
	{
		bCloseEvent = FALSE;
		GeocacheData->bPageRequest = FALSE;
		GeocacheData->b4HzRotation = FALSE;
		GeocacheData->usMessagePeriod = GeocacheData->MESG_P5HZ_PERIOD;
		requestUpdateMesgPeriod(GeocacheData->MESG_P5HZ_PERIOD);
	}

	if (GeocacheData->bPageRequest)
	{
		switch (GeocacheData->ucRequestedPageNum)
		{
			case commonData->PAGE80 :
				commonData->Encode(commonData->PAGE80, pucTxBuffer_);
				break;

			case commonData->PAGE81 :
				commonData->Encode(commonData->PAGE81, pucTxBuffer_);
				break;

			case commonData->PAGE82 :
				if (commonData->bBattPageEnabled)
				{
					commonData->Encode(commonData->PAGE82, pucTxBuffer_);
				}
				break;

			default:
				GeocacheData->GetPageData(GeocacheData->ucRequestedPageNum, pucTxBuffer_);
				break;
		}
		GeocacheData->bPageRequest = FALSE;
	}
	else if (GeocacheData->b4HzRotation)
	{
		switch (ucPageCount)
		{
			case GeocacheData->PAGE_0 :
				// Encode PAGE 0
				GeocacheData->GetPageData(GeocacheData->PAGE_0, pucTxBuffer_);
				ucPageCount = GeocacheData->PAGE_1;
				break;

			case GeocacheData->PAGE_1 :
				// Encode PAGE 1
				GeocacheData->GetPageData(GeocacheData->PAGE_1, pucTxBuffer_);

				// Do we have Programmed Pages ?
				if (GeocacheData->ucTotalPages > 2)			
					ucPageCount = GeocacheData->PAGE_2;
				else
					ucPageCount = commonData->PAGE80;
				break;

			case commonData->PAGE80 :
				commonData->Encode(ucPageCount, pucTxBuffer_);
				ucPageCount = commonData->PAGE81;
				break;

			case commonData->PAGE81 :
				commonData->Encode(ucPageCount, pucTxBuffer_);
				if (commonData->bBattPageEnabled)
					ucPageCount = commonData->PAGE82;
				else
					ucPageCount = GeocacheData->PAGE_0;
				break;

			case commonData->PAGE82 :
				commonData->Encode(ucPageCount, pucTxBuffer_);
				ucPageCount = GeocacheData->PAGE_0;
				break;

			default :
				GeocacheData->GetPageData(ucPageCount, pucTxBuffer_);
				ucPageCount++;
				if (ucPageCount > (GeocacheData->ucTotalPages-1)) ucPageCount = commonData->PAGE80;
				break;
		}
	}
	else	// Not in 4Hz Rotation - just send Beacon (PAGE 0)
	{
		GeocacheData->GetPageData(GeocacheData->PAGE_0, pucTxBuffer_);
	}

	ulMessageCount++;

	// Return to 0.5Hz Beacon ONLY after 30 secs ... of no GPS requests
	if (GeocacheData->b4HzRotation && (ulMessageCount > GeocacheData->MESG_4HZ_TIMEOUT)) 
	{
		GeocacheData->b4HzRotation = FALSE;
		GeocacheData->usMessagePeriod = GeocacheData->MESG_P5HZ_PERIOD;
		requestUpdateMesgPeriod(GeocacheData->MESG_P5HZ_PERIOD);
	}

	static UCHAR ucTimeCount = 0;
	// update the batt op time every second
	if (ucTimeCount == 3)
	{
		ulTotalTime++;
		commonData->ulOpTime = ulTotalTime / (UCHAR) commonData->eTimeResolution;
		ucTimeCount = 0;
	}
	else
		ucTimeCount++;
}

/**************************************************************************
 * GeocacheSensor::buttonProgram_Click
 * 
 * Update the Programmable Pages (per UI Values)
 * 
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::buttonProgram_Click(System::Object^  sender, System::EventArgs^  e)
{
	GeocacheData->bLatitudeEnabled = FALSE;
	GeocacheData->bLongitudeEnabled = FALSE;
	GeocacheData->bHintEnabled = FALSE;
	GeocacheData->bLoggedVisitsEnabled = FALSE;

	// ID
	if (this->checkBoxID->Checked)
	{
		char* stringPointer = (char*) Marshal::StringToHGlobalAnsi(this->textBoxID->Text->ToUpper()).ToPointer();
		for (int i=0; i<this->textBoxID->Text->Length; i++)
			GeocacheData->cID[i] = stringPointer[i] - 0x20;
		for (int i=this->textBoxID->Text->Length; i<9; i++)
			GeocacheData->cID[i] = 0x00;
		// Always free the unmanaged string.
		Marshal::FreeHGlobal(IntPtr(stringPointer));
	}

	// PIN
	if (this->checkBoxPIN->Checked)
	{
		if (this->textBoxPIN->Text->Length > 0)
      {
         if(!UInt32::TryParse(this->textBoxPIN->Text, (unsigned int)GeocacheData->ulPIN))
            System::Windows::Forms::MessageBox::Show(this, "PIN could not be parsed as an unsigned 4 byte number");
      }
		else
			GeocacheData->ulPIN = GeocacheData->DEFAULT_PIN;
	}

	if (this->checkBoxLatitude->Checked)
	{
		GeocacheData->bLatitudeEnabled = TRUE;
		GeocacheData->slLatitude_SC = System::Convert::ToInt32(double (this->numericUpDownLatitude->Value) * GeocacheData->SEMI_CIRCLE_CONVERSION);
	}
	if (this->checkBoxLongitude->Checked)
	{
		GeocacheData->bLongitudeEnabled = TRUE;
		GeocacheData->slLongitude_SC = System::Convert::ToInt32(double (this->numericUpDownLongitude->Value) * GeocacheData->SEMI_CIRCLE_CONVERSION);
	}
	if (this->checkBoxLoggedVisits->Checked)
	{
		time_t tmtEpoch, tmtLastVisit;
		struct tm tmEpoch, tmLastVisit;

		tmEpoch.tm_year = 1989 - 1900;
		tmEpoch.tm_mon = 12 - 1;
		tmEpoch.tm_mday = 31;
		tmEpoch.tm_hour = 00;
		tmEpoch.tm_min = 00;
		tmEpoch.tm_sec = 00;
		tmtEpoch = mktime(&tmEpoch);

		tmLastVisit.tm_year = System::Convert::ToUInt16(this->numericUpDownYear->Value) - 1900;
		tmLastVisit.tm_mon = System::Convert::ToUInt16(this->numericUpDownMonth->Value) - 1;
		tmLastVisit.tm_mday = System::Convert::ToUInt16(this->numericUpDownDay->Value);
		tmLastVisit.tm_hour = System::Convert::ToUInt16(this->numericUpDownHours->Value);
		tmLastVisit.tm_min = System::Convert::ToUInt16(this->numericUpDownMinutes->Value);
		tmLastVisit.tm_sec = System::Convert::ToUInt16(this->numericUpDownSeconds->Value);
		tmtLastVisit = mktime(&tmLastVisit);

		//if (tmLastVisit.tm_isdst > 0)  //Removed. We are calculating an absolute difference in UTC time, which is not impacted by daylight savings
		GeocacheData->ulLastVisitTimestamp = (ULONG) difftime(tmtLastVisit, tmtEpoch);

		GeocacheData->bLoggedVisitsEnabled = TRUE;
		GeocacheData->usNumVisits = System::Convert::ToUInt16(this->numericUpDownNumVisits->Value);
	}
	if (this->checkBoxHint->Checked)
	{
		char* stringPointer = (char*) Marshal::StringToHGlobalAnsi(this->textBoxHint->Text).ToPointer();
		for (int i=0; i<this->textBoxHint->Text->Length; i++)
			GeocacheData->cHint[i] = stringPointer[i];

		GeocacheData->ucNumHintPages = (this->textBoxHint->Text->Length/GeocacheData->HINT_CHARS_PER_PAGE) + 1;
		GeocacheData->bHintEnabled = TRUE;
	}

	GeocacheData->GenerateProgPages();
	UpdateDisplay();
}

/**************************************************************************
 * GeocacheSensor::Update Display
 * 
 * Update the GUI with all the changes
 * 
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::UpdateDisplay()
{
	// ID
	System::Text::StringBuilder^ builder = gcnew System::Text::StringBuilder();
	for(int i=0; i<GeocacheData->cID->Length; i++) builder->Append((Char)(GeocacheData->cID[i]+0x20));
	this->labelID->Text = builder->ToString();

	// PIN
	if (!this->checkBoxPIN->Checked) // Don't update if Selected
		this->textBoxPIN->Text = GeocacheData->ulPIN.ToString();
	this->labelPIN->Text = GeocacheData->ulPIN.ToString();

	// Total Pages
	this->labelTotNumPages->Text = GeocacheData->ucTotalPages.ToString();

	// Determine which pages are Enabled
	GeocacheData->EnabledProgPages();

	// Lat/Lon Pages
	if (GeocacheData->bLatitudeEnabled)
	{
		if (!this->checkBoxLatitude->Checked) // Don't update if Selected
			this->numericUpDownLatitude->Text = ((double)GeocacheData->slLatitude_SC / GeocacheData->SEMI_CIRCLE_CONVERSION).ToString("N2");
		this->labelLat->Text = ((double)GeocacheData->slLatitude_SC / GeocacheData->SEMI_CIRCLE_CONVERSION).ToString("N2");
	}
	else
	{
		this->labelLat->Text = "---";
	}
	if (GeocacheData->bLongitudeEnabled)
	{
		if (!this->checkBoxLongitude->Checked) // Don't update if Selected
			this->numericUpDownLongitude->Text = ((double)GeocacheData->slLongitude_SC / GeocacheData->SEMI_CIRCLE_CONVERSION).ToString("N2");
		this->labelLon->Text = ((double)GeocacheData->slLongitude_SC / GeocacheData->SEMI_CIRCLE_CONVERSION).ToString("N2");
	}
	else
	{
		this->labelLon->Text = "---";
	}

	// Hint Page(s)
	if (GeocacheData->bHintEnabled)
	{
		System::Text::StringBuilder^ builder = gcnew System::Text::StringBuilder();
		for(int i=0; i<GeocacheData->cHint->Length; i++) builder->Append((Char)GeocacheData->cHint[i]);
		this->labelHint->Text = builder->ToString();
		if (!this->checkBoxHint->Checked) // Don't update if Selected
			this->textBoxHint->Text = builder->ToString();
	}
	else
	{
		this->labelHint->Text = "---";
	}

	// Logged Visits Page
	if (GeocacheData->bLoggedVisitsEnabled && (GeocacheData->ulLastVisitTimestamp > 0))
	{
		if (!this->checkBoxLoggedVisits->Checked) // Don't update if Selected
			this->numericUpDownNumVisits->Value = GeocacheData->usNumVisits;
		this->labelNumVisits->Text = this->numericUpDownNumVisits->Text;

		time_t tmtEpoch;
		struct tm tmEpoch;

		tmEpoch.tm_year = 1989 - 1900;
		tmEpoch.tm_mon = 12 - 1;
		tmEpoch.tm_mday = 31;
		tmEpoch.tm_hour = 00;
		tmEpoch.tm_min = 00;
		tmEpoch.tm_sec = 00;
		tmtEpoch = mktime(&tmEpoch);

		time_t tmtLastVisit; 
		struct tm * tmLastVisit;

		tmtLastVisit = ((time_t)GeocacheData->ulLastVisitTimestamp + tmtEpoch);
#pragma warning (disable : 4068)
#pragma warning (disable : 4996)
		tmLastVisit = localtime(&tmtLastVisit);

		//Additional correction for daylight savings not required

		if (!this->checkBoxLoggedVisits->Checked) // Don't update if Selected
		{
			this->numericUpDownYear->Value = tmLastVisit->tm_year + 1900;
			this->numericUpDownMonth->Value = tmLastVisit->tm_mon + 1;
			this->numericUpDownDay->Value = tmLastVisit->tm_mday;
			this->numericUpDownHours->Value = tmLastVisit->tm_hour;
			this->numericUpDownMinutes->Value = tmLastVisit->tm_min;
			this->numericUpDownSeconds->Value = tmLastVisit->tm_sec;
		}

		System::Text::StringBuilder^ builder = gcnew System::Text::StringBuilder();
		for(int i=0; i<26; i++) builder->Append((Char)((asctime(&tmLastVisit[0]))[i]));
		this->labelTimestamp->Text = builder->ToString();
	}
	else
	{
		this->labelNumVisits->Text = "-";
		this->labelTimestamp->Text = "-";
	}

	// Authentication Token
	UInt64 ui64AuthToken =	((UInt64)GeocacheData->ucAuthToken[0]) +
							((UInt64)GeocacheData->ucAuthToken[1] << 8) +
							((UInt64)GeocacheData->ucAuthToken[2] << 16) +
							((UInt64)GeocacheData->ucAuthToken[3] << 24) +
							((UInt64)GeocacheData->ucAuthToken[4] << 32) +
							((UInt64)GeocacheData->ucAuthToken[5] << 40) +
							((UInt64)GeocacheData->ucAuthToken[6] << 48);
	this->labelAuthToken->Text = ui64AuthToken.ToString("X2");

	// update the operating time for the battery common page
	this->label_Bat_ElpTimeDisplay->Text = ulTotalTime.ToString();
}

/**************************************************************************
 * GeocacheSensor::onTimerTock
 * 
 * Simulates a sensor event, updating simulator data based on this event
 * Modifications to the timer interval are applied immediately after this
 * at ANTChannel
 *
 * usEventTime_: current time (ms)
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::onTimerTock(USHORT eventTime)
{
	UpdateDisplay();
}

/**************************************************************************
 * GeocacheSensor::UpdateDisplayAckStatus
 * 
 * Adjusts the GUI depending on the ACK status of the tx message
 *
 * UCHAR status_:  gives the success or fail status of the tx message
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::UpdateDisplayAckStatus(UCHAR status_)
{
	// Nothing to do ...
}


/**************************************************************************
 * GeocacheSensor::numericUpDownLongitude_ValueChanged
 * 
 * Adjusts the current longitude via the GUI
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownLongitude_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
//	GeocacheData->slLongitude_SC = System::Convert::ToInt32(double (this->numericUpDownLongitude->Value) * GeocacheData->SEMI_CIRCLE_CONVERSION);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownLatitude_ValueChanged
 * 
 * Adjusts the current latitude via the GUI
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownLatitude_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
//	GeocacheData->slLatitude_SC = System::Convert::ToInt32(double (this->numericUpDownLatitude->Value) * GeocacheData->SEMI_CIRCLE_CONVERSION);
}

/**************************************************************************
 * GeocacheSensor::checkBoxID_CheckedChanged
 * 
 * Enables and disables the ID Text Box
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxID_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxID->Checked == TRUE)
	{
		this->textBoxID->Enabled = TRUE;
	}
	else
	{
		this->textBoxID->Enabled = FALSE;
	}
}

// Boolean flag used to determine when a character other than a number is entered.
bool nonNumberEntered;


/**************************************************************************
 * GeocacheSensor::textBoxID_TextChanged
 * 
 * Ensures ID uses characters in the valid ASCII 6 bit range.
 * We use the text changed event so we have the actual characters and don't have to mess around with key codes.
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::textBoxID_TextChanged(System::Object^  sender, System::EventArgs^  e)
{
   System::Text::StringBuilder^ sb = gcnew System::Text::StringBuilder();
   for(int i=0; i < textBoxID->Text->Length; ++i)
   {
      if(textBoxID->Text[i] >= 32 && textBoxID->Text[i] <= 95)
         sb->Append(textBoxID->Text[i]);
   }

   textBoxID->Text = sb->ToString();
}


/**************************************************************************
 * GeocacheSensor::checkBoxPIN_CheckedChanged
 * 
 * Enables and disables the PIN Text Box
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxPIN_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxPIN->Checked == TRUE)
	{
		this->textBoxPIN->Enabled = TRUE;
	}
	else
	{
		this->textBoxPIN->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor:textBoxPIN_KeyDown
 * 
 * Handle the KeyDown event to determine the type of character entered into the control.
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::textBoxPIN_KeyDown( Object^ /*sender*/, System::Windows::Forms::KeyEventArgs^ e )
   {
      // Initialize the flag to false.
      nonNumberEntered = false;

      // Determine whether the keystroke is a number from the top of the keyboard.
	   // ... or a valid KEY ...
      if ( e->KeyCode < Keys::D0 || e->KeyCode > Keys::D9 )
      {
         // Determine whether the keystroke is a number from the keypad.
         if ( e->KeyCode < Keys::NumPad0 || e->KeyCode > Keys::NumPad9 )
         {
            // Determine whether the keystroke is a backspace.
            if ( e->KeyCode != Keys::Back )
            {
               // A non-numerical keystroke was pressed.
               // Set the flag to true and evaluate in KeyPress event.
               nonNumberEntered = true;
            }
         }
      }
      // If shift key was pressed, it's not a number.
      if (Control::ModifierKeys == Keys::Shift) {
         nonNumberEntered = true;
      }
   }

/**************************************************************************
 * GeocacheSensor:textBoxPIN_KeyPress
 * 
 * This event occurs after the KeyDown event and can be used to prevent
 * characters from entering the control.
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::textBoxPIN_KeyPress( Object^ /*sender*/, System::Windows::Forms::KeyPressEventArgs^ e )
   {
      // Check for the flag being set in the KeyDown event.
      if ( nonNumberEntered == true )
      {         // Stop the character from being entered into the control since it is non-numerical.
         e->Handled = true;
      }
   }


/**************************************************************************
 * GeocacheSensor::checkBoxLatitude_CheckedChanged
 * 
 * Enables and disables the Latitude numeric upDown
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxLatitude_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxLatitude->Checked == TRUE)
	{
		this->numericUpDownLatitude->Enabled = TRUE;
	}
	else
	{
		this->numericUpDownLatitude->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor::checkBoxLongitude_CheckedChanged
 * 
 * Enables and disables the Longitude numeric upDown
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxLongitude_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxLongitude->Checked == TRUE)
	{
		this->numericUpDownLongitude->Enabled = TRUE;
	}
	else
	{
		this->numericUpDownLongitude->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor::checkBoxHint_CheckedChanged
 * 
 * Enables and disables the Hint Test Box
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxHint_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxHint->Checked == TRUE)
	{
		this->textBoxHint->Enabled = TRUE;
	}
	else
	{
		this->textBoxHint->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor::checkBoxLoggedVisits_CheckedChanged
 * 
 * Enables and disables the Various Logged Visit Parameters ...
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBoxLoggedVisits_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBoxLoggedVisits->Checked == TRUE)
	{
		this->numericUpDownNumVisits->Enabled = TRUE;
		this->numericUpDownYear->Enabled = TRUE;
		this->numericUpDownMonth->Enabled = TRUE;
		this->numericUpDownDay->Enabled = TRUE;
		this->numericUpDownHours->Enabled = TRUE;
		this->numericUpDownMinutes->Enabled = TRUE;
		this->numericUpDownSeconds->Enabled = TRUE;
	}
	else
	{
		this->numericUpDownNumVisits->Enabled = FALSE;
		this->numericUpDownYear->Enabled = FALSE;
		this->numericUpDownMonth->Enabled = FALSE;
		this->numericUpDownDay->Enabled = FALSE;
		this->numericUpDownHours->Enabled = FALSE;
		this->numericUpDownMinutes->Enabled = FALSE;
		this->numericUpDownSeconds->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor::numericUpDownNumVisits_ValueChanged
 * 
 * Adjusts the current Number of Visits via the GUI
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownNumVisits_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	// Nothing to do ...
}

/**************************************************************************
 * GeocacheSensor::button_Glb_GlobalDataUpdate_Click
 * 
 * Adjusts the global pages 80 and 81 via the GUI
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::button_Glb_GlobalDataUpdate_Click(System::Object^  sender, System::EventArgs^  e)
{
	this->labelError->Visible = false;
	// required common pages
	try
	{
		if(this->checkBox_NoSerial->Checked)
			commonData->ulSerialNum = 0xFFFFFFFF;
		else
			commonData->ulSerialNum = System::Convert::ToUInt32(this->textBox_Glb_SerialNumChange->Text);

		commonData->ucSwVersion = System::Convert::ToByte(this->textBox_Glb_SoftwareVerChange->Text);
		commonData->ucHwVersion = System::Convert::ToByte(this->textBox_Glb_HardwareVerChange->Text);
		commonData->usMfgID = System::Convert::ToUInt16(this->textBox_Glb_ManfIDChange->Text);
		commonData->usModelNum = System::Convert::ToUInt16(this->textBox_Glb_ModelNumChange->Text);
	}
	catch(...)
	{
		this->labelError->Visible = true;
	}
}


/**************************************************************************
 * GeocacheSensor::checkBox_Bat_Status_CheckedChanged
 * 
 * Enables and disables the battery voltage GUI elements
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBox_Bat_Status_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBox_Bat_Status->Checked == TRUE)
	{
		commonData->bBattPageEnabled = TRUE;
		this->comboBoxBatStatus->Enabled = TRUE;
		this->label_Bat_ElpTimeDisplay->Enabled = TRUE;
		this->textBox_Bat_ElpTimeChange->Enabled = TRUE;
		this->checkBox_Bat_Voltage->Enabled = TRUE;
		this->checkBox_Bat_Voltage->Checked = TRUE;
		this->numericUpDown_Bat_VoltFrac->Enabled = TRUE;
		this->numericUpDown_Bat_VoltInt->Enabled = TRUE;
		this->groupBox_Resol->Enabled = TRUE;
		this->button_Bat_ElpTimeUpdate->Enabled = TRUE;

		// update the variables
		UpdateBatStatus();
		if (this->radioButton_Bat_Elp16Units->Checked)
			commonData->eTimeResolution = CommonData::TimeResolution::SIXTEEN;
		
		if (this->radioButton_Bat_Elp2Units->Checked)
			commonData->eTimeResolution = CommonData::TimeResolution::TWO;

		commonData->ulOpTime = ulTotalTime / (UCHAR) commonData->eTimeResolution;
		commonData->usBatVoltage256 = ((USHORT) System::Convert::ToByte(this->numericUpDown_Bat_VoltInt->Value)) << 8 | (commonData->usBatVoltage256 & 0xFF);	// Integer portion in high byte
		commonData->usBatVoltage256 |= System::Convert::ToByte(this->numericUpDown_Bat_VoltFrac->Value) | (commonData->usBatVoltage256 & 0xFF00);	// Fractional portion in low byte
	}

	else
	{
		commonData->bBattPageEnabled = FALSE;
		this->comboBoxBatStatus->Enabled = FALSE;
		this->label_Bat_ElpTimeDisplay->Enabled = FALSE;
		this->textBox_Bat_ElpTimeChange->Enabled = FALSE;
		this->checkBox_Bat_Voltage->Enabled = FALSE;
		this->checkBox_Bat_Voltage->Checked = FALSE;
		this->numericUpDown_Bat_VoltFrac->Enabled = FALSE;
		this->numericUpDown_Bat_VoltInt->Enabled = FALSE;
		this->groupBox_Resol->Enabled = FALSE;
		this->button_Bat_ElpTimeUpdate->Enabled = FALSE;
	}
}

/**************************************************************************
 * GeocacheSensor::checkBox_Bat_Voltage_CheckedChanged
 * 
 * Enables and disables the battery voltage numeric upDown
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBox_Bat_Voltage_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->checkBox_Bat_Voltage->Checked == TRUE)
	{
		this->numericUpDown_Bat_VoltInt->Enabled = TRUE;
		this->numericUpDown_Bat_VoltFrac->Enabled = TRUE;
		commonData->usBatVoltage256 = ((USHORT) System::Convert::ToByte(this->numericUpDown_Bat_VoltInt->Value)) << 8 | (commonData->usBatVoltage256 & 0xFF);	// Integer portion in high byte
		commonData->usBatVoltage256 |= System::Convert::ToByte(this->numericUpDown_Bat_VoltFrac->Value) | (commonData->usBatVoltage256 & 0xFF00);	// Fractional portion in low byte
	}
	else
	{
		this->numericUpDown_Bat_VoltInt->Enabled = FALSE;
		this->numericUpDown_Bat_VoltFrac->Enabled = FALSE;
		commonData->usBatVoltage256 = commonData->BATTERY_VOLTAGE_INVALID;
	}
}

/**************************************************************************
 * GeocacheSensor::numericUpDown_Bat_VoltInt_ValueChanged
 * 
 * changes the coarse battery voltage
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDown_Bat_VoltInt_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->usBatVoltage256 = ((USHORT) System::Convert::ToByte(this->numericUpDown_Bat_VoltInt->Value)) << 8 | (commonData->usBatVoltage256 & 0xFF);	// Integer portion in high byte
}

/**************************************************************************
 * GeocacheSensor::numericUpDown_Bat_VoltFrac_ValueChanged
 * 
 * changes the fractional battery voltage
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDown_Bat_VoltFrac_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->usBatVoltage256 = System::Convert::ToByte(this->numericUpDown_Bat_VoltFrac->Value) | (commonData->usBatVoltage256 & 0xFF00);	// Fractional portion in low byte
}

/**************************************************************************
 * GeocacheSensor::comboBoxBatStatus_SelectedIndexChanged
 * 
 * changes the battery status
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::comboBoxBatStatus_SelectedIndexChanged(System::Object^  sender, System::EventArgs^  e)
{
	UpdateBatStatus();
}

/**************************************************************************
 * GeocacheSensor::UpdateBatStatus
 * 
 * Updates the battery status
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::UpdateBatStatus()
{
	if (this->comboBoxBatStatus->Text->Equals("New"))
	{
		commonData->eBatStatus = CommonData::BatStatus::NEW;
	}

	else if (this->comboBoxBatStatus->Text->Equals("Good"))
	{
		commonData->eBatStatus = CommonData::BatStatus::GOOD;
	}

	else if (this->comboBoxBatStatus->Text->Equals("Ok"))
	{
		commonData->eBatStatus = CommonData::BatStatus::OK;
	}

	else if (this->comboBoxBatStatus->Text->Equals("Low"))
	{
		commonData->eBatStatus = CommonData::BatStatus::LOW;
	}

	else if (this->comboBoxBatStatus->Text->Equals("Critical"))
	{
		commonData->eBatStatus = CommonData::BatStatus::CRITICAL;
	}

	else if (this->comboBoxBatStatus->Text->Equals("Invalid"))
	{
		commonData->eBatStatus = CommonData::BatStatus::INVALID;
	}
}

/**************************************************************************
 * GeocacheSensor::button_Bat_ElpTimeUpdate_Click
 * 
 * changes the elapsed battery time
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::button_Bat_ElpTimeUpdate_Click(System::Object^  sender, System::EventArgs^  e)
{
	ulTotalTime = System::Convert::ToUInt32(this->textBox_Bat_ElpTimeChange->Text);
	commonData->ulOpTime = ulTotalTime / (UCHAR) commonData->eTimeResolution;
}

/**************************************************************************
 * GeocacheSensor::radioButton_Bat_Elp2Units_CheckedChanged
 * 
 * changes the elapsed battery time units
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::radioButton_Bat_Elp2Units_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->radioButton_Bat_Elp2Units->Checked)
		commonData->eTimeResolution = CommonData::TimeResolution::TWO;
}

/**************************************************************************
 * GeocacheSensor::radioButton_Bat_Elp2Units_CheckedChanged
 * 
 * changes the elapsed battery time units
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::radioButton_Bat_Elp16Units_CheckedChanged(System::Object^  sender, System::EventArgs^  e)
{
	if (this->radioButton_Bat_Elp16Units->Checked)
		commonData->eTimeResolution = CommonData::TimeResolution::SIXTEEN;
}



/**************************************************************************
 * GeocacheSensor::numericUpDownDay_ValueChanged
 * 
 * Sets value of the day
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownDay_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucDays = System::Convert::ToByte(this->numericUpDownDay->Value);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownMonth_ValueChanged
 * 
 * Sets value of the month
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownMonth_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucMonth = System::Convert::ToByte(this->numericUpDownMonth->Value);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownYear_ValueChanged
 * 
 * Sets value of the year
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownYear_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucYears = System::Convert::ToByte(this->numericUpDownYear->Value);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownHours_ValueChanged
 * 
 * Sets value of the hours
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownHours_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucHours = System::Convert::ToByte(this->numericUpDownHours->Value);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownMinutes_ValueChanged
 * 
 * Sets value of the minutes
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownMinutes_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucMinutes = System::Convert::ToByte(this->numericUpDownMinutes->Value);
}

/**************************************************************************
 * GeocacheSensor::numericUpDownSeconds_ValueChanged
 * 
 * Sets value of the minutes
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::numericUpDownSeconds_ValueChanged(System::Object^  sender, System::EventArgs^  e)
{
	commonData->ucSeconds = System::Convert::ToByte(this->numericUpDownSeconds->Value);
}



/**************************************************************************
 * GeocacheSensor::checkBox_NoSerial_CheckedChanged
 * 
 * Handles checkBox CheckedChanged event
 *
 * returns: N/A
 *
 **************************************************************************/
void GeocacheSensor::checkBox_NoSerial_CheckedChanged(System::Object ^sender, System::EventArgs ^e)
{
	if(this->checkBox_NoSerial->Checked)
		this->textBox_Glb_SerialNumChange->Enabled = false;
	else
		this->textBox_Glb_SerialNumChange->Enabled = true;
}