#include "ImgPF.h"

static L_BOOL AFNDlg_OnInit    (HWND hWnd, HWND hWndCtl, LPARAM Data);
static L_VOID AFNDlg_OnCommand (HWND hWnd, L_INT nID, HWND hWndCtl, L_UINT uCodeNotify);
static L_VOID AFNDlg_OnHScroll (HWND hWnd, HWND hWndCtl, L_UINT uRequest,  L_INT nPosition);
static L_VOID AFNDlg_OnTimer   (HWND hWnd, L_INT nID);
static L_VOID L_ApplyFilter    (HWND hWnd);
static L_VOID EnableDlgItems   (HWND hWnd, L_UINT uFlags);
static L_VOID DisableDlgItems  (HWND hWnd, L_UINT uFlags);

L_BOOL CALLBACK AfnEfctDlgProc(HWND hWnd, L_UINT uMessage, WPARAM wParam, LPARAM lParam)
{
   switch(uMessage)
   {
      HANDLE_MSG(hWnd, WM_INITDIALOG, AFNDlg_OnInit);
      HANDLE_MSG(hWnd, WM_COMMAND   , AFNDlg_OnCommand);
      HANDLE_MSG(hWnd, WM_HSCROLL   , AFNDlg_OnHScroll);
      HANDLE_MSG(hWnd, WM_TIMER     , AFNDlg_OnTimer);      

   case WM_USER_UPDATEVIEW:
      StatusProc.ProgressValue = 100;
      L_ApplyFilter(hWnd);
      break;
   }
   return FALSE;
}

static LRESULT CALLBACK Mouse(L_INT nCode, WPARAM wParam, LPARAM lParam) 
{
   LPAFNDLGDATA      pAfnDlgData;
   LPMOUSEHOOKSTRUCT pMouseHook;
   HWND              hWndParent;
   pCHILDDATA        pData;
   RECT              rcRect;
   POINT             TmpPoint;
   DWORD             dwStyle;   

   hWndParent      = FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage);
   pData           = LOCKCHILDDATA (hWndParent);
   pAfnDlgData     = (LPAFNDLGDATA)GetWindowLong(hGlobalWnd, GWL_USERDATA);
   pMouseHook      = (LPMOUSEHOOKSTRUCT)lParam;

   GetWindowRect(hGlobalWnd, &rcRect);
   if (PtInRect(&rcRect, pMouseHook->pt))
      return 0;

   switch(LOWORD(wParam))
   {
   case WM_NCMOUSEMOVE:
      TmpPoint = pMouseHook->pt;
      if (PtInRect(&rcRect, TmpPoint))
         break;
      if (pAfnDlgData->bPushed) 
      {
         PostMessage (hWndParent, WM_USER_CHANGECURSOR, 0, (LONG)IDC_CROSS);
      }
      else
      {
         dwStyle  = GetWindowLong (hWndParent, GWL_STYLE);
         if ((WS_VSCROLL & dwStyle) || (WS_HSCROLL & dwStyle))
            PostMessage(hWndParent, WM_USER_CHANGECURSOR, (WPARAM)hInst, (LONG)MAKEINTRESOURCE(IDC_CURS11));
         ScreenToClient(hWndParent, &pMouseHook->pt);
         GetClientRect(hGlobalWnd, &rcRect);
         if (!PtInRect(&rcRect, pMouseHook->pt))
            SendMessage((hWndParent), WM_MOUSEMOVE, wParam, MAKELPARAM((pMouseHook->pt.x), (pMouseHook->pt.y)));
      }
      break;

   case WM_NCLBUTTONDOWN:
      TmpPoint = pMouseHook->pt;
      if (PtInRect(&rcRect, TmpPoint))
         break;
      if (pAfnDlgData->bPushed)
      {
         PostMessage (hWndParent, WM_USER_CHANGECURSOR, 0, (LONG)IDC_CROSS);
         ScreenToClient(hWndParent, &pMouseHook->pt);
         GetClientRect(hWndParent, &rcRect);
         if (PtInRect(&pData->rcView, pMouseHook->pt))
         {
            if (L_BitmapHasRgn(&pData->LeadBitmap))
            {
               L_GetBitmapRgnBounds(&pData->LeadBitmap, NULL, &rcRect);
               TmpPoint.x = pMouseHook->pt.x + pData->nHScrollPos;
               TmpPoint.y = pMouseHook->pt.y + pData->nVScrollPos;
               if (!PtInRect(&rcRect, TmpPoint))
                  return CallNextHookEx(pAfnDlgData->hMouseHook, nCode, wParam, lParam); 
            }

            pData->ptCenter.x = pAfnDlgData->AddFuncNois.uXOrigin = pMouseHook->pt.x + pData->nHScrollPos;
            pData->ptCenter.y = pAfnDlgData->AddFuncNois.uYOrigin = pMouseHook->pt.y + pData->nVScrollPos;
            
            SetDlgItemInt(hGlobalWnd, IDC_AFN_XPOS_EDT, pAfnDlgData->AddFuncNois.uXOrigin, TRUE);
            SetDlgItemInt(hGlobalWnd, IDC_AFN_YPOS_EDT, pAfnDlgData->AddFuncNois.uYOrigin, TRUE);
            InvalidateRect(hWndParent, NULL, FALSE);
            L_ApplyFilter (hGlobalWnd);
            PostMessage (hWndParent, WM_USER_CHANGECURSOR, 0, (LONG)IDC_CROSS);
         }
         else
         {
            PostMessage (hWndParent, WM_USER_CHANGECURSOR, 0, (LONG)IDC_ARROW);
         }
      }
      else
      {
         dwStyle  = GetWindowLong (hWndParent, GWL_STYLE);
         if ((WS_VSCROLL & dwStyle) || (WS_HSCROLL & dwStyle))
            PostMessage(hWndParent, WM_USER_CHANGECURSOR, (WPARAM)hInst, (LONG)MAKEINTRESOURCE(IDC_CURS11));
         ScreenToClient(hWndParent, &pMouseHook->pt);
         SendMessage(hWndParent, WM_LBUTTONDOWN, wParam, MAKELPARAM((pMouseHook->pt.x), (pMouseHook->pt.y)));
      }
      break;

   case WM_NCLBUTTONUP:
      TmpPoint = pMouseHook->pt;
      if (PtInRect(&rcRect, TmpPoint))
         break;
      if (pAfnDlgData->bPushed)
      {
         PostMessage (hWndParent, WM_USER_CHANGECURSOR, 0, (LONG)IDC_CROSS);
      }
      else
      {
         dwStyle  = GetWindowLong (hWndParent, GWL_STYLE);
         if ((WS_VSCROLL & dwStyle) || (WS_HSCROLL & dwStyle))
            PostMessage(hWndParent, WM_USER_CHANGECURSOR, (WPARAM)hInst, (LONG)MAKEINTRESOURCE(IDC_CURS11));
         ScreenToClient(hWndParent, &pMouseHook->pt);
         GetClientRect(hGlobalWnd, &rcRect);
         if (!PtInRect(&rcRect, pMouseHook->pt))
            SendMessage(hWndParent, WM_LBUTTONUP, wParam, MAKELPARAM((pMouseHook->pt.x), (pMouseHook->pt.y)));
      }
      break;
   }
   
   if (pAfnDlgData)
   {
      if (LOWORD(wParam) >= WM_NCMOUSEMOVE && LOWORD(wParam) <= WM_NCMBUTTONDBLCLK)
         return TRUE;
      else
         return CallNextHookEx(pAfnDlgData->hMouseHook , nCode, wParam, lParam); 
   }
   else
      return FALSE;
}

static L_BOOL AFNDlg_OnInit(HWND hWnd, HWND hWndCtl, LPARAM Data)
{
   LPAFNDLGDATA   pAfnDlgData;
   pCHILDDATA     pData;
   HWND           hWndParent;
   L_INT          nIndex;
   L_INT          nRangeMin[] = {0  , 0  , 0  , 1    , -18000, -180, 0, 0};
   L_INT          nRangeMax[] = {100, 100, 100, 10000,  18000,  180, 0, 0};
   L_INT          nPosInit[]  = {50 , 50 , 50 , 1500 ,  0    ,  0  , 0, 0};
   RECT           rcRgn;

   hWndParent    = FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage);
   pData         = (pCHILDDATA)GetWindowLong(hWndParent, GWL_USERDATA);
   pAfnDlgData   = (LPAFNDLGDATA)Data;
   hGlobalWnd    = hWnd;
   pData->bCross = TRUE;
   MoveDialogToMiddle(hWnd);

   SetWindowLong(hWnd, GWL_USERDATA, (LONG)pAfnDlgData);

      //MEMDISK...//
   MemorizeAndCopyBitmap (hWndParent, &pAfnDlgData->LeadBitmap);

   L_GetBitmapRgnBounds(&pAfnDlgData->LeadBitmap, NULL, &rcRgn);

   nRangeMax[6] = rcRgn.right - 1;
   nRangeMax[7] = rcRgn.bottom - 1;
   nRangeMin[6] = rcRgn.left;
   nRangeMin[7] = rcRgn.top;
   nPosInit[6]  = pData->ptCenter.x = (rcRgn.right + rcRgn.left) >> 1;
   nPosInit[7]  = pData->ptCenter.y = (rcRgn.bottom + rcRgn.top) >> 1;

   pAfnDlgData->AddFuncNois.uStructSize = sizeof(LIGHTPARAMS); 
   pAfnDlgData->AddFuncNois.uFreq    = 1500;  
   pAfnDlgData->AddFuncNois.uRAmp    = 50;  
   pAfnDlgData->AddFuncNois.uGAmp    = 50;  
   pAfnDlgData->AddFuncNois.uBAmp    = 50;  
   pAfnDlgData->AddFuncNois.nAngle   = 0;  
   pAfnDlgData->AddFuncNois.nPhase   = 0;  
   pAfnDlgData->AddFuncNois.uXOrigin = nPosInit[6];  
   pAfnDlgData->AddFuncNois.uYOrigin = nPosInit[7];  
   pAfnDlgData->AddFuncNois.uFlags   = FL_ADD | FL_CIRCLES;  
   pAfnDlgData->nSldBaseID           = IDC_AFN_RAMP_SLD;  
   pAfnDlgData->nEdtBaseID           = IDC_AFN_RAMP_EDT;  
   pAfnDlgData->nSlideNum            = 8;  
   StatusProc.bProgress              = TRUE;       
   StatusProc.bInvalidate            = FALSE;       
   StatusProc.bKillProgress          = FALSE;       
   StatusProc.bEnd                   = FALSE;       
   StatusProc.DlgWnd                 = hWnd;       
   StatusProc.ProgressValue          = 100;       
   StatusProc.ProgWnd                = GetDlgItem(hWnd, IDC_AFN_PROG);       

   ComboBox_AddString(GetDlgItem(hWnd, IDC_AFN_SHP_COM), TEXT("Unidirection"));
   ComboBox_AddString(GetDlgItem(hWnd, IDC_AFN_SHP_COM), TEXT("Circles"));
   ComboBox_AddString(GetDlgItem(hWnd, IDC_AFN_OPR_COM), TEXT("ADD"));
   ComboBox_AddString(GetDlgItem(hWnd, IDC_AFN_OPR_COM), TEXT("MUL"));
   ComboBox_SetCurSel(GetDlgItem(hWnd, IDC_AFN_SHP_COM), 1);
   ComboBox_SetCurSel(GetDlgItem(hWnd, IDC_AFN_OPR_COM), 0);
   
   Progress_SetRange(GetDlgItem(hWnd, IDC_AFN_PROG), 0, 100);
   Progress_SetPos(GetDlgItem(hWnd, IDC_AFN_PROG), 0);

   CreateAngleControl(GetDlgItem(hWnd, IDC_AFN_ANGL_SLD), IDC_AFN_ANGL_EDT, FROM_180_TO_180, 1, APPLY_ON_MOVE);

   for(nIndex = 0 ; nIndex < pAfnDlgData->nSlideNum; nIndex++)
   {
      if (nIndex != 5)
         Trackbar_SetTheRange(GetDlgItem(hWnd, pAfnDlgData->nSldBaseID + nIndex), TRUE, nRangeMin[nIndex], nRangeMax[nIndex]);

      SetNumericEditBox(GetDlgItem(hWnd, pAfnDlgData->nEdtBaseID + nIndex), nRangeMin[nIndex], nRangeMax[nIndex], 1, 0, FALSE);
      SetDlgItemInt(hWnd, pAfnDlgData->nEdtBaseID + nIndex, nPosInit[nIndex], FALSE);
   }
   DisableDlgItems(hWnd, FL_UNIDIRECTION);
   EnableDlgItems(hWnd, FL_CIRCLES);
   EnableDlgItems(hWnd, FL_ADD);
   pData->uTimerID = SetTimer(hWnd, 1, 100, NULL);

   if(L_IsGrayScaleBitmap(&pAfnDlgData->LeadBitmap))
   {
      DisableDlgItems(hWnd, FL_ADD);
   }
   UpdateWindow(hWnd);
   ShowWindow(hWnd, SW_SHOW);
   pAfnDlgData->bPushed    = FALSE;
   pAfnDlgData->hIcon      = LoadIcon(hInst, MAKEINTRESOURCE(IDI_MOUSE));
   pAfnDlgData->hMouseHook = SetWindowsHookEx(WH_MOUSE, Mouse, hInst, GetCurrentThreadId());
   SendMessage(GetDlgItem(hWnd, IDC_AFN_POS_BTN), BM_SETIMAGE, IMAGE_ICON, (LPARAM)(HICON)pAfnDlgData->hIcon);
   L_ApplyFilter(hWnd);

   return ( TRUE );
}

static L_VOID AFNDlg_OnTimer (HWND hWnd, L_INT nID)
{
   Dialog_Timer(nID);
}

static L_VOID AFNDlg_OnCommand(HWND hWnd, L_INT nID, HWND hWndCtl, L_UINT uCodeNotify)
{ 
 
   HWND           hWndParent;
   LPAFNDLGDATA   pAfnDlgData;
   pCHILDDATA     pData;
   L_UINT         uCurrentSelection;
   L_INT          nValue, nIndex;
   L_INT          nRangeMin[] = { 0,   0,   0,   1,    -18000, -180, 0, 0 };
   L_INT          nRangeMax[] = { 100, 100, 100, 10000, 18000,  180, 0, 0 };
   L_BOOL         Signed[]    = { FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, FALSE, FALSE };
   
   hWndParent   = FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage);
   pData        = (pCHILDDATA)GetWindowLong(hWndParent, GWL_USERDATA);
   pAfnDlgData  = (LPAFNDLGDATA) GetWindowLong(hWnd, GWL_USERDATA);

   nRangeMax[6] = pAfnDlgData->LeadBitmap.Width - 1; 
   nRangeMax[7] = pAfnDlgData->LeadBitmap.Height- 1;

   switch(nID)
   {
   case IDC_AFN_ANGL_EDT:
      nValue = GetDlgItemInt(hWnd, nID, NULL, TRUE);
      if ((uCodeNotify == EN_CHANGE) && nValue != pAfnDlgData->AddFuncNois.nAngle)
      {
         pAfnDlgData->AddFuncNois.nAngle = nValue;
         DrawAngleControl(GetDlgItem(hWnd, IDC_AFN_ANGL_SLD), nValue);
         L_ApplyFilter(hWnd);
      }
      return;

   case IDC_AFN_POS_BTN:
      pAfnDlgData->bPushed = Button_GetCheck(hWndCtl);
      break;

   case IDCANCEL:
      pData->bCross            = FALSE;
      UnhookWindowsHookEx(pAfnDlgData->hMouseHook);
      DestroyIcon(pAfnDlgData->hIcon);
      StatusProc.bProgress     = FALSE;
      StatusProc.bKillProgress = TRUE ;
      StatusProc.ProgressValue = 100 ;
      EndDialog(hWnd, FALSE);
      break;

   case IDOK:
      pData->bCross            = FALSE;
      UnhookWindowsHookEx(pAfnDlgData->hMouseHook);
      DestroyIcon(pAfnDlgData->hIcon);
      ShowStatusWindow(FALSE);
      StatusProc.bStillWork  = TRUE;
      StatusProc.bInvalidate = TRUE;
      StatusProc.bEnd = TRUE;
      EndDialog(hWnd, TRUE);
      break;

   case IDC_AFN_SHP_COM:
      if(uCodeNotify == CBN_SELCHANGE)
      {
         uCurrentSelection = ComboBox_GetCurSel(GetDlgItem(hWnd, nID));
         if((1<<(uCurrentSelection + 4)) & pAfnDlgData->AddFuncNois.uFlags)
            return;

         pAfnDlgData->AddFuncNois.uFlags &= 0xFFCF;
         pAfnDlgData->AddFuncNois.uFlags |= (1<<(uCurrentSelection + 4));
         EnableDlgItems  (hWnd, 1 <<(uCurrentSelection + 4));
         if(pAfnDlgData->AddFuncNois.uFlags & FL_UNIDIRECTION)
         {
            DisableDlgItems (hWnd, FL_CIRCLES);
            pAfnDlgData->bPushed = FALSE;
         }
         else
         {
            DisableDlgItems (hWnd, FL_UNIDIRECTION);
            pAfnDlgData->bPushed = Button_GetCheck(GetDlgItem(hWnd, IDC_AFN_POS_BTN));

         }

         InvalidateRect(hWndCtl, NULL, FALSE);
         L_ApplyFilter(hWnd);
      }
      break;

   case IDC_AFN_OPR_COM:
      if(uCodeNotify == CBN_SELCHANGE)
      {
         uCurrentSelection = ComboBox_GetCurSel(GetDlgItem(hWnd, nID));
         if((1<<(uCurrentSelection + 6)) & pAfnDlgData->AddFuncNois.uFlags)
         return;

         pAfnDlgData->AddFuncNois.uFlags &= 0xFF3F;
         pAfnDlgData->AddFuncNois.uFlags |= (1<<(uCurrentSelection + 6));

         EnableDlgItems  (hWnd, 1<<(uCurrentSelection + 6));
         if(pAfnDlgData->AddFuncNois.uFlags & FL_ADD)
         DisableDlgItems (hWnd, FL_MUL);
         else
         DisableDlgItems (hWnd, FL_ADD);

         if(L_IsGrayScaleBitmap(&pAfnDlgData->LeadBitmap))
         {
            DisableDlgItems(hWnd, FL_ADD);
         }

         InvalidateRect(hWndCtl, NULL, FALSE);
         L_ApplyFilter(hWnd);
      }
      break;
   }

   if(nID >= (L_INT)pAfnDlgData->nEdtBaseID && nID <(L_INT)(pAfnDlgData->nEdtBaseID + pAfnDlgData->nSlideNum))
   {
      if(uCodeNotify == EN_CHANGE)
      {
         nIndex  = nID - pAfnDlgData->nEdtBaseID;
         nValue  = GetDlgItemInt(hWnd, nID, NULL, Signed[nIndex]);
         
         Trackbar_SetPos(GetDlgItem(hWnd, nIndex + pAfnDlgData->nSldBaseID), TRUE, nValue);
   
         switch(nIndex)
         {
         case 0:
            if(pAfnDlgData->AddFuncNois.uRAmp == (L_UINT)nValue)
               return;
            pAfnDlgData->AddFuncNois.uRAmp = (L_UINT)nValue;
            break;
         case 1:
            if(pAfnDlgData->AddFuncNois.uGAmp == (L_UINT)nValue)
               return;
           pAfnDlgData->AddFuncNois.uGAmp = (L_UINT)nValue;
            break;
         case 2:
            if(pAfnDlgData->AddFuncNois.uBAmp == (L_UINT)nValue)
               return;
           pAfnDlgData->AddFuncNois.uBAmp = (L_UINT)nValue;
            break;
         case 3:
            if(pAfnDlgData->AddFuncNois.uFreq == (L_UINT)nValue)
               return;
            pAfnDlgData->AddFuncNois.uFreq = (L_UINT)nValue;
            break;
         case 4:
            if(pAfnDlgData->AddFuncNois.nPhase == nValue)
               return;
            pAfnDlgData->AddFuncNois.nPhase = nValue;
            break;
         case 5:
            if(pAfnDlgData->AddFuncNois.nAngle == nValue)
               return;
           pAfnDlgData->AddFuncNois.nAngle = nValue;
            break;
         case 6:
            if(pAfnDlgData->AddFuncNois.uXOrigin == (L_UINT)nValue)
               return;
            pAfnDlgData->AddFuncNois.uXOrigin = nValue;
            pData->ptCenter.x               = nValue;
            break;
         case 7:
            if(pAfnDlgData->AddFuncNois.uYOrigin == (L_UINT)nValue)
               return;
            pAfnDlgData->AddFuncNois.uYOrigin = nValue;
            pData->ptCenter.y               = nValue;
            break;
         }
         L_ApplyFilter(hWnd);
      }
   }
}

static L_VOID AFNDlg_OnHScroll(HWND hWnd, HWND hWndCtl, L_UINT uRequest, L_INT nPosition)
{
   LPAFNDLGDATA pAfnDlgData = (LPAFNDLGDATA) GetWindowLong(hWnd, GWL_USERDATA);
   SetDlgItemInt(hWnd, GetDlgCtrlID(hWndCtl) - pAfnDlgData->nSlideNum, Trackbar_GetPos(hWndCtl), TRUE);
   
}

static L_VOID L_ApplyFilter(HWND hWnd)
{
   pCHILDDATA   pData;
   L_INT        nRet = 0;
   HWND         hWndParent;
   LPAFNDLGDATA pAfnDlgData;
   LIGHTPARAMS  AddFuncNoise;

   if ( 100 != StatusProc.ProgressValue )
   {
      StatusProc.bKillProgress = TRUE ;
      return ;
   }

   pAfnDlgData  = (LPAFNDLGDATA) GetWindowLong(hWnd, GWL_USERDATA);
   hWndParent   = FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage);
   pData        = (pCHILDDATA)GetWindowLong(hWndParent, GWL_USERDATA);

   FreeMemorizedBitmap (hWndParent); //MEMDISK//
   L_CopyBitmap(&pData->LeadBitmap, &pAfnDlgData->LeadBitmap, sizeof(BITMAPHANDLE));

   memcpy(&AddFuncNoise, &pAfnDlgData->AddFuncNois, sizeof(LIGHTPARAMS));
   AddFuncNoise.uFlags |= FL_TRIGONOMETRY;
   AddFuncNoise.nAngle *= 100;

   nRet = L_FunctionalLightBitmap(&pData->LeadBitmap, &AddFuncNoise);

   if(nRet == SUCCESS)
   {
      InvalidateRect(hWndParent, NULL, FALSE);
      StatusProc.ProgressValue = 100;
      Progress_SetPos(StatusProc.ProgWnd, 0);
      if(StatusProc.bEnd)
      {
         StatusProc.bProgress     = FALSE;
         StatusProc.bKillProgress = TRUE ;
      }
   }
}

static L_VOID EnableDlgItems(HWND hWnd, L_UINT uFlags)
{
   switch(uFlags)
   {
      case FL_UNIDIRECTION   : 
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_ANGL_SLD),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_ANGL_EDT),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_POS_BTN), FALSE);
         (LOCKCHILDDATA(FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage)))->bCross = FALSE;
         ((LPAFNDLGDATA)GetWindowLong(hWnd, GWL_USERDATA))->AddFuncNois.nAngle = GetDlgItemInt(hWnd, IDC_AFN_ANGL_EDT, NULL, TRUE);
         break;
      
      case FL_CIRCLES :
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_XPOS_EDT),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_XPOS_SLD),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_YPOS_EDT),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_YPOS_SLD),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_POS_BTN), TRUE);
         (LOCKCHILDDATA(FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage)))->bCross = TRUE;
         break;

      case FL_ADD :
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_GAMP_SLD),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_BAMP_SLD),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_GAMP_EDT),  TRUE );
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_BAMP_EDT),  TRUE );
         Static_SetText(GetDlgItem(hWnd, IDC_AFN_RAMP_TXT   ), TEXT("RAmplitude"));
         break;
      case FL_MUL :
         Static_SetText(GetDlgItem(hWnd, IDC_AFN_RAMP_TXT   ), TEXT("Amplitude"));
         break;
   }
}

static L_VOID DisableDlgItems(HWND hWnd, L_UINT uFlags)
{
   switch(uFlags)
   {
      case FL_UNIDIRECTION   : 
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_ANGL_SLD), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_ANGL_EDT), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_POS_BTN), TRUE);
         (LOCKCHILDDATA(FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage)))->bCross = TRUE;
         break;
      
      case FL_CIRCLES :
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_XPOS_EDT), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_XPOS_SLD), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_YPOS_EDT), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_YPOS_SLD), FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_POS_BTN), FALSE);
         (LOCKCHILDDATA(FORWARD_WM_MDIGETACTIVE(hWndClient, SendMessage)))->bCross = FALSE;
         break;

      case FL_ADD :
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_GAMP_SLD),  FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_BAMP_SLD),  FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_GAMP_EDT),  FALSE);
         EnableWindow( GetDlgItem(hWnd, IDC_AFN_BAMP_EDT),  FALSE);
         Static_SetText(GetDlgItem(hWnd, IDC_AFN_RAMP_TXT), TEXT("Amplitude"));
         break;
      case FL_MUL :
         Static_SetText(GetDlgItem(hWnd, IDC_AFN_RAMP_TXT), TEXT("RAmplitude"));
         break;
   }
}