/*
 ***********************************************************************
 *  Program     : ALARM.C                                              *
 *  Description : Demo program for Win 16 with Alarm functions         *
 *  Revision    : 1.00                                                 *
 *  Date        : 9/5/1996                     Advantech Co., Ltd.     *
 ***********************************************************************
 *
 * FUNCTIONS:
 *
 *   InitApplication() - Initializes window data and registers window class
 *
 *   InitInstance() - Saves instance handle and creates main window
 *
 *   MainWndProc() - Process main window messages
 *
 *   ConfigDlgProc() - Process the dialog box messages for configuration
 */


#include <windows.h>
#include <stdlib.h>
#include <dos.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "..\..\include\driver.h"
#include "..\..\include\os.h"
#include "resource.h"

// ------------------------------------------------------------------------
// CONSTANT DEFINITION
// ------------------------------------------------------------------------
#define     MAX_DEVICES     100


// ------------------------------------------------------------------------
// GLOBAL VARIABLES
// ------------------------------------------------------------------------
HANDLE      hInst;                      // current instance
HWND        hMainWnd;                   // main window handle


static      DEVFEATURES     DevFeatures;    // structure for device features
static      PT_AlarmConfig  ptAlarmConfig;  // structure for AlarmConfig table
static      PT_AlarmEnable  ptAlarmEnable;  // structure for AlarmEnable table
static      PT_AlarmCheck   ptAlarmCheck;   // structure for AlarmCheck table
static      PT_DeviceGetFeatures  ptDevFeatures;

char        szErrMsg[80];               // Use for MESSAGEBOX function
LRESULT     ErrCde;                     // Return error code

//
// used for dynamic allocation memory for the installed devices
//
// static  HGLOBAL     hDeviceList,hSubDeviceList;
// static  LPDEVLIST   DeviceList,SubDeviceList;
//

//
// used for fixed memory for the installed devices
//
DEVLIST     DeviceList[MAX_DEVICES];
DEVLIST     SubDeviceList[MAX_DEVICES];

LONG        DriverHandle = (LONG)NULL;          // driver handle
BOOL        bRun = FALSE;                       // flag for running
USHORT      gwDevice = 0, gwSubDevice = 0;      // device index
USHORT      gwChannel = 0;                      // input channel
FLOAT       gfLoLimit = 0.0f, gfHiLimit = 0.0f; // High and low limits
USHORT      gwLatchMode = 1;                    // momentary mode
USHORT      gwLoState = 0, gwHiState = 0;       // alarm status
SHORT       gnNumOfDevices, gnNumOfSubdevices;  // number of installed devices
USHORT      gwScanTime = 1000;                  // scan time
DWORD       gdwStartTime;                       // start time
DWORD       gdwElapseTime = 0;                  // elapse time
USHORT      gwOverrunCount = 0;                 // overrun count
FARPROC     lpfnConfigDlgProc;                  // config. dialog procedure
FARPROC     lpfnScanDlgProc;                    // scan dialog procedure


// ------------------------------------------------------------------------
// FUNCTION DECLARATION
// ------------------------------------------------------------------------
BOOL InitApplication(HANDLE);
BOOL InitInstance(HANDLE, int);
long FTYPE MainWndProc(HWND, UINT, WPARAM, LPARAM);
int  FTYPE WinMain(HANDLE, HANDLE, LPSTR, int);


/***************************************************************************
    FUNCTION: WinMain(HANDLE, HANDLE, LPSTR, int)

    PURPOSE: calls initialization function, processes message loop
****************************************************************************/

int FTYPE WinMain(hInstance, hPrevInstance, lpCmdLine, nCmdShow)
HANDLE hInstance;                          /* current instance             */
HANDLE hPrevInstance;                      /* previous instance            */
LPSTR lpCmdLine;                           /* command line                 */
int nCmdShow;                              /* show-window type (open/icon) */
{
    MSG msg;                               /* message                      */

    if (!hPrevInstance)                /* Other instances of app running?  */
      if (!InitApplication(hInstance)) /* Initialize shared things         */
          return (FALSE);              /* Exits if unable to initialize    */

    // Perform initializations that apply to a specific instance
    if (!InitInstance(hInstance, nCmdShow))
        return (FALSE);

    // Acquire and dispatch messages until a WM_QUIT message is received.
    while (GetMessage(&msg,      /* message structure                      */
        (HWND)NULL,              /* handle of window receiving the message */
        (UINT)NULL,              /* lowest message to examine              */
        (UINT)NULL))             /* highest message to examine             */
    {
        TranslateMessage(&msg);  /* Translates virtual key codes           */
        DispatchMessage(&msg);   /* Dispatches message to window           */
    }
    return (msg.wParam);         /* Returns the value from PostQuitMessage */
}

/****************************************************************************
    FUNCTION: InitApplication(HANDLE)

    PURPOSE: Initializes window data and registers window class
****************************************************************************/

BOOL InitApplication(hInstance)
HANDLE hInstance;                            /* current instance           */
{
    WNDCLASS  wc;

    // Fill in window class structure with parameters that describe the
    // main window.
    wc.style = CS_HREDRAW | CS_VREDRAW; /* Class style(s).                 */
    wc.lpfnWndProc = (WNDPROC)MainWndProc;  /* window process procedure    */
    wc.cbClsExtra = 0;                  /* No per-class extra data.        */
    wc.cbWndExtra = 0;                  /* No per-window extra data.       */
    wc.hInstance = hInstance;           /* Application that owns the class.*/
    wc.hIcon = LoadIcon(hInstance, "IDI_ICON1");
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = GetStockObject(WHITE_BRUSH);
    wc.lpszMenuName =  "MyMenu";   /* Name of menu resource in .RC file.  */
    wc.lpszClassName = "MyClass";  /* Name used in call to CreateWindow. */

    // Register the window class and return success/failure code.
    return (RegisterClass(&wc));

}

/***************************************************************************
    FUNCTION:  InitInstance(HANDLE, int)

    PURPOSE:  Saves instance handle and creates main window
****************************************************************************/

BOOL InitInstance
(
    HANDLE          hInstance,          // Current instance identifier.
    int             nCmdShow            // Param for first ShowWindow() call.
)
{
    // Save the instance handle in static variable, which will be used in
    // many subsequence calls from this application to Windows.
    hInst = hInstance;

    // Create a main window for this application instance.
    hMainWnd = CreateWindow(
        "MyClass",                 /* See RegisterClass() call.           */
        "Advantech Driver Demo : Alarm" , /* Window title bar  */
        WS_OVERLAPPEDWINDOW,        /* Window style.                       */
        CW_USEDEFAULT,              /* Default horizontal position.        */
        CW_USEDEFAULT,              /* Default vertical position.          */
        CW_USEDEFAULT,              /* Default width.                      */
        CW_USEDEFAULT,              /* Default height.                     */
        NULL,                       /* Overlapped windows have no parent.  */
        NULL,                       /* Use the window class menu.          */
        hInstance,                  /* This instance owns this window.     */
        NULL                        /* Pointer not needed.                 */
        );

    // If window could not be created, return "failure"
    if (!hMainWnd)
        return (FALSE);

    // Make the window visible; update its client area; and return "success"

    ShowWindow(hMainWnd, nCmdShow);   // Show the window
    UpdateWindow(hMainWnd);           // Sends WM_PAINT message
    return (TRUE);                // Returns the value from PostQuitMessage
}

/***************************************************************************
    FUNCTION: ConfigDlgProc(HWND, unsigned, WPARAM, LPARAM)

    PURPOSE:  Processes dialog box messages for configuration
****************************************************************************/

BOOL FTYPE ConfigDlgProc
(
    HWND        hDlg,                          // window handle
    unsigned    message,                       // type of message
    WPARAM      wParam,                        // additional information
    LPARAM      lParam                         // additional information
)
{
    int         i;
    DWORD       dwIndex;
    char        szBuffer[40];
    int         nOutEntries;

    switch (message)
    {
    case WM_INITDIALOG :

        // --------------------------------
        // Initialize Device List Combobox
        // --------------------------------

        // get number of the installed devices

        if ((ErrCde = DRV_DeviceGetNumOfList((SHORT far *)&gnNumOfDevices)) !=
            SUCCESS)
        {
             DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
             MessageBox(hMainWnd,(LPCSTR)szErrMsg, "Driver Message", MB_OK);
             return TRUE;
        }


        // ----------------------------------------------------------------
        // used for dynamic allocation memory for these installed devices
        //
        // if ((hDeviceList = GlobalAlloc(GHND, gnNumOfDevices *
        //      sizeof(DEVLIST))) == NULL)
        // {
        //    MessageBox(hMainWnd, (LPCSTR)"Not Enough Memory",
        //        "Memory Allocation", MB_OK);
        //    return TRUE;
        // }
        // DeviceList = (LPDEVLIST)GlobalLock(hDeviceList);
        // ----------------------------------------------------------------


        if (gnNumOfDevices > MAX_DEVICES)
            gnNumOfDevices = MAX_DEVICES;

        // retrieve the information of all installed devices

        if ((ErrCde = DRV_DeviceGetList((DEVLIST far *)&DeviceList[0],
            (SHORT)gnNumOfDevices, (SHORT far *)&nOutEntries)) != (LONG)SUCCESS)
        {
            DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
            MessageBox(hMainWnd,(LPCSTR)szErrMsg,"Driver Message",MB_OK);
            return TRUE;
        }

        // initialize the Device List Combobox with the retrieved information

        for (i = 0; i < gnNumOfDevices; i ++)
            SendDlgItemMessage(hDlg, IDC_DEVICE, CB_ADDSTRING, 0,
                        (LPARAM)((LPSTR)DeviceList[i].szDeviceName));

        SendDlgItemMessage(hDlg, IDC_DEVICE, CB_SETCURSEL,(WPARAM)gwDevice,
                        (LPARAM)0);


        // -----------------------------------------------------------
        // Initialize Module List Combobox for COM port or CAN devices
        // -----------------------------------------------------------

        // check if there is any device attached on this COM port or CAN

        gnNumOfSubdevices = DeviceList[gwDevice].nNumOfSubdevices;
        if (gnNumOfSubdevices > MAX_DEVICES)
            gnNumOfSubdevices = MAX_DEVICES;


        // --------------------------------------------------------------
        // used for dynamic allocation memory for these installed devices
        //
        // if ((hSubDeviceList = GlobalAlloc(GHND, gnNumOfSubdevices *
        //    sizeof(DEVLIST))) == NULL)
        // {
        //    MessageBox(hMainWnd, (LPCSTR)"Not Enough Memory",
        //        "Memory Allocation", MB_OK);
        //    return TRUE;
        // }
        //
        // SubDeviceList = (LPDEVLIST)GlobalLock(hSubDeviceList);
        // --------------------------------------------------------------


        // retrieve the information of all installed devices
        if (gnNumOfSubdevices != 0)
        {
            if ((ErrCde = DRV_DeviceGetSubList(
                (DWORD)DeviceList[gwDevice].dwDeviceNum,
                (DEVLIST far *)&SubDeviceList[0],
                (SHORT)gnNumOfSubdevices,
                (SHORT far *)&nOutEntries)) != (LONG)SUCCESS)
            {
                DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
                MessageBox(hMainWnd,(LPCSTR)szErrMsg,"Driver Message",MB_OK);
                return TRUE;
            }


            // initialize the Module List Combobox with the retrieved
            // information

            EnableWindow(GetDlgItem(hDlg, IDC_MODULE), TRUE);
            SendDlgItemMessage(hDlg, IDC_MODULE, CB_RESETCONTENT, 0,
                    (LPARAM)((LPSTR)0));

            for (i = 0; i < gnNumOfSubdevices; i++)
                SendDlgItemMessage(hDlg, IDC_MODULE, CB_ADDSTRING, 0,
                        (LPARAM)((LPSTR)SubDeviceList[i].szDeviceName));

            SendDlgItemMessage(hDlg, IDC_MODULE, CB_SETCURSEL,
					(WPARAM)gwSubDevice, (LPARAM)0);
        }
        else
        {
            EnableWindow(GetDlgItem(hDlg, IDC_MODULE), FALSE);
            SendDlgItemMessage(hDlg, IDC_MODULE, CB_RESETCONTENT, 0,
                    (LPARAM)((LPSTR)0));
        }


        // ------------------------------------------------------------
        // Initialize Channel Edit, it needs to get device
        // features for alarm channels
        // ------------------------------------------------------------

        // first : Open Device