#include <windows.h>
#include <commctrl.h>
#include <stdio.h>

static char g_szClassName[] = "MyWindowClass";
static HINSTANCE g_hInst = NULL;
HMENU hMenu, hSubMenu;
HWND ListView;
unsigned char dsp_mem[0x20000];

#define IDC_EDIT_1 1001
#define CM_FILE_OPEN 9001
#define CM_FILE_SAVE 9002
#define CM_FILE_EXIT 9003
#define CM_STUFF_REFRESH 9011
#define CM_STUFF_GO2 9012
#define IDC_BTN_1	102
#define IDC_STATIC_1	201
#define IDC_LIST_1 301
#define IDC_LIST_2 302

#define BUFFER_SIZE 256
#define NO_OF_COLS 17
//#define MAX_PATH 512

clear_dsp_mem(char *dsp_mem) {
   int i;

   for(i=0;i<0x20000;i++) {
      dsp_mem[i] = 0;
   }
}

BOOL LoadFile(HWND hwnd, LPSTR pszFileName)
{
   HANDLE hFile;
   BOOL bSuccess = FALSE;

   hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
      OPEN_EXISTING, NULL, NULL);
   if(hFile != INVALID_HANDLE_VALUE)
   {
      DWORD dwFileSize;
      dwFileSize = GetFileSize(hFile, NULL);
      if(dwFileSize != 0xFFFFFFFF)
      {
         DWORD dwRead;
         if(dwFileSize >0x20000)
            dwFileSize = 0x20000;

         if(ReadFile(hFile, dsp_mem, dwFileSize, &dwRead, NULL))
            {
               //MessageBox(hwnd, "read dsp_mem ok", "read mem", MB_OK);
               bSuccess = TRUE; // It worked!
            }
      }
      CloseHandle(hFile);
   }
   return bSuccess;
}


LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
   char szText[BUFFER_SIZE];
	LV_COLUMN lvc;
   LVITEM LvItem;
   int i,j;
   OPENFILENAME ofn;
   char szFileName[MAX_PATH];


   switch(Message)
   {
      case WM_CREATE:

         ListView = CreateWindowEx(WS_EX_CLIENTEDGE, WC_LISTVIEW, "listview1",
               LVS_REPORT|LVS_EDITLABELS|WS_BORDER|WS_TABSTOP|LVS_SINGLESEL|
               WS_CHILD|WS_VISIBLE, 0, 0, 600, 180,
               hwnd, (HMENU) IDC_LIST_2, g_hInst, NULL);

	      SendMessage(ListView, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);

	      memset(&lvc, 0, sizeof(LV_COLUMN) );
	      lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_SUBITEM | LVCF_TEXT;
	      lvc.fmt = LVCFMT_RIGHT;

	      // first column
	      lvc.iSubItem   = 0;
	      lvc.cx         = 60;
	      lvc.cchTextMax = 10;
	      lvc.pszText    = "Nr.";
	      SendMessage(ListView, LVM_INSERTCOLUMN, 1, (LPARAM)&lvc);

			for(i=0;i<16;i++) {
				// second column
	         lvc.fmt = LVCFMT_CENTER;
				lvc.iSubItem   = i;
			   lvc.cx         = 30;
				lvc.cchTextMax = 2;
				sprintf(szText, "%X", i);
				lvc.pszText    = szText;
				SendMessage(ListView, LVM_INSERTCOLUMN, i+2, (LPARAM)&lvc);
			}

			memset(&LvItem,0,sizeof(LvItem)); // Zero struct's Members

			//  Setting properties Of members:

			LvItem.mask=LVIF_TEXT;
			LvItem.cchTextMax = 256;

         for(i=0;i<8;i++) {
				LvItem.iItem=i;
				LvItem.iSubItem=0;

				sprintf(szText, "%08X", i*0x10);
				LvItem.pszText= szText;

				SendMessage(ListView,LVM_INSERTITEM,0,(LPARAM)&LvItem);

				for(j=0;j<16;j++) {
					LvItem.iSubItem= j+1;
					LvItem.iItem=i;
					sprintf(szText, "%02X", j);
					LvItem.pszText=szText;

					SendMessage(ListView,LVM_SETITEM,0,(LPARAM)&LvItem);
				}
			}

			//CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "",
         //      WS_CHILD|WS_VISIBLE|WS_OVERLAPPED|
         //      ES_WANTRETURN, 10, 10, 100,
         //      20, hwnd, (HMENU) IDC_EDIT_1, g_hInst, NULL);

         //CreateWindowEx(WS_EX_CLIENTEDGE, "LISTBOX", "list1",
         //      LBS_NOTIFY|WS_CHILD|WS_VISIBLE|WS_OVERLAPPED|
         //      ES_WANTRETURN, 150, 10, 100,
         //      100, hwnd, (HMENU) IDC_LIST_1, g_hInst, NULL);

         //CreateWindowEx(0, "BUTTON", "View",
         //      BS_DEFPUSHBUTTON|BS_CENTER|WS_CHILD|
         //      WS_VISIBLE|WS_TABSTOP, 30, 150, 100,
         //      30, hwnd, (HMENU) IDC_BTN_1, g_hInst, NULL);

         //CreateWindowEx(0, "STATIC", "static",
         //      SS_SIMPLE|SS_NOPREFIX|WS_CHILD|WS_VISIBLE|WS_TABSTOP, 30, 200, 100,
         //      30, hwnd, (HMENU) IDC_STATIC_1, g_hInst, NULL);

         hMenu = CreateMenu();
         hSubMenu = CreatePopupMenu();
         AppendMenu(hSubMenu, MF_STRING, CM_FILE_OPEN, "&Open");
         AppendMenu(hSubMenu, MF_STRING, CM_FILE_SAVE, "&Save");
         AppendMenu(hSubMenu, MF_STRING, CM_FILE_EXIT, "E&xit");
         AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&File");

         hSubMenu = CreatePopupMenu();
         AppendMenu(hSubMenu, MF_STRING, CM_STUFF_REFRESH, "&Refresh");
         AppendMenu(hSubMenu, MF_STRING, CM_STUFF_GO2, "&Go2");
         AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Stuff");

         SetMenu(hwnd, hMenu);

         break;
      case WM_COMMAND:
         switch(LOWORD(wParam))
         {
            case IDC_BTN_1:
               GetDlgItemText(hwnd, IDC_EDIT_1, szText, BUFFER_SIZE);
               SetDlgItemText(hwnd, IDC_STATIC_1, szText);
            return TRUE;
            case CM_STUFF_REFRESH:
               //MessageBox(hwnd, "refresh disp", "refresh", MB_OK);
			   memset(&LvItem,0,sizeof(LvItem)); // Zero struct's Members

			   //  Setting properties Of members:

			   LvItem.mask=LVIF_TEXT;
			   LvItem.cchTextMax = 256;
            for(i=0;i<8;i++) {
				   LvItem.iItem=i;
				   LvItem.iSubItem=0;

				   sprintf(szText, "%08X", i*0x10);
				   LvItem.pszText= szText;

				   SendMessage(ListView,LVM_SETITEM,0,(LPARAM)&LvItem);

				   for(j=0;j<16;j++) {
					   LvItem.iSubItem= j+1;
					   LvItem.iItem=i;
					   sprintf(szText, "%02X", dsp_mem[i*0x10+j]&0xff);
					   LvItem.pszText=szText;

					   SendMessage(ListView,LVM_SETITEM,0,(LPARAM)&LvItem);
				   }
			   }
            return TRUE;
            case CM_STUFF_GO2:
               GetDlgItemText(hwnd, IDC_EDIT_1, szText, BUFFER_SIZE);
               SetDlgItemText(hwnd, IDC_STATIC_1, szText);
            return TRUE;
            case CM_FILE_SAVE:

               ZeroMemory(&ofn, sizeof(ofn));
               szFileName[0]=0;

               ofn.lStructSize = sizeof(ofn);
               ofn.hwndOwner = hwnd;
               ofn.lpstrFilter = "Fls files (*.fls)\0*.fls\0All files (*.*)\0*.*\0\0";
               ofn.lpstrFile = szFileName;
               ofn.nMaxFile = MAX_PATH;
               ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY |
         OFN_OVERWRITEPROMPT;
               ofn.lpstrDefExt = "fls";

               if(GetOpenFileName(&ofn)) {
                  MessageBox(hwnd, szFileName, "You chose to save...", MB_OK);
               }
            return TRUE;
            case CM_FILE_OPEN:

               ZeroMemory(&ofn, sizeof(ofn));
               szFileName[0]=0;

               ofn.lStructSize = sizeof(ofn);
               ofn.hwndOwner = hwnd;
               ofn.lpstrFilter = "Fls files (*.fls)\0*.fls\0All files (*.*)\0*.*\0\0";
               ofn.lpstrFile = szFileName;
               ofn.nMaxFile = MAX_PATH;
               ofn.Flags = OFN_EXPLORER|OFN_HIDEREADONLY;
               ofn.lpstrDefExt = "fls";

               if(GetOpenFileName(&ofn)) {
                  //MessageBox(hwnd, szFileName, "You chose to open...", MB_OK);
                  LoadFile(hwnd, szFileName);
               }

            return TRUE;
            case CM_FILE_EXIT:
               DestroyWindow(hwnd);
            return TRUE;
         }
         break;

      case WM_SIZE:
         //if(wParam != SIZE_MINIMIZED)
            //MoveWindow(GetDlgItem(hwnd, IDC_MAIN_TEXT), 10, 10, 100,
            //      50, TRUE);
         break;
      case WM_LBUTTONDOWN:
         MessageBox(hwnd, "left click","message",
                     MB_OK|MB_ICONINFORMATION);
         break;
      case WM_CLOSE:
         DestroyWindow(hwnd);
         break;
      case WM_DESTROY:
         PostQuitMessage(0);
         break;
      default:
         return DefWindowProc(hwnd, Message, wParam, lParam);
   }
   return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
                   LPSTR lpCmdLine, int nCmdShow)
{
   WNDCLASSEX WndClass;
   HWND hwnd;
   MSG Msg;
   INITCOMMONCONTROLSEX InitCtrls;

   InitCtrls.dwICC = ICC_LISTVIEW_CLASSES;
   InitCtrls.dwSize = sizeof(INITCOMMONCONTROLSEX);
   BOOL bRet = InitCommonControlsEx(&InitCtrls);

   g_hInst = hInstance;

   clear_dsp_mem(dsp_mem);

   WndClass.cbSize = sizeof(WNDCLASSEX);
   WndClass.style = NULL;
   WndClass.lpfnWndProc = WndProc;
   WndClass.cbClsExtra = 0;
   WndClass.cbWndExtra = 0;
   WndClass.hInstance = g_hInst;
   WndClass.hIcon = 0;
   WndClass.hCursor = 0;
   WndClass.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
   WndClass.lpszMenuName = NULL;
   WndClass.lpszClassName = g_szClassName;
   WndClass.hIconSm = 0;

   if(!RegisterClassEx(&WndClass))
   {
      MessageBox(0, "Window reg failed", "error",
            MB_ICONEXCLAMATION|MB_OK|MB_SYSTEMMODAL);
      return 0;
   }

   hwnd = CreateWindowEx(
      WS_EX_WINDOWEDGE,
      g_szClassName,
      "title of window",
      WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, CW_USEDEFAULT, 620, 400,
      NULL, NULL, g_hInst, NULL);

   if(hwnd == NULL)
   {
      MessageBox(0, "window creation failed", "error",
                  MB_ICONEXCLAMATION|MB_OK|MB_SYSTEMMODAL);
      return 0;
   }

   ShowWindow(hwnd, nCmdShow);
   UpdateWindow(hwnd);

   while(GetMessage(&Msg, NULL, 0, 0))
   {
      TranslateMessage(&Msg);
      DispatchMessage(&Msg);
   }
   return Msg.wParam;
}