myfile.step7

BREW程序：在BREW手机上的文件操作程序

      		return(TRUE);


        // An SMS message has arrived for this app. Message is in the dwParam above as (char *)
        // sender simply uses this format "//BREW:ClassId:Message", example //BREW:0x00000001:Hello World
        case EVT_APP_MESSAGE:
		    // Add your code here...

      		return(TRUE);

        // A key was pressed. Look at the wParam above to see which key was pressed. The key
        // codes are in AEEVCodes.h. Example "AVK_1" means that the "1" key was pressed.
        case EVT_KEY:
		    // Add your code here...
		  if((wParam == AVK_CLR) && (pMe->status != STATUS_MENU)) 
		  {
			  IFILEMGR_Release(pMe->pMyFileMgr);
			  pMe->pMyFileMgr = NULL;
			  IMENUCTL_Redraw(pMe->pMenu);
			  IMENUCTL_SetActive(pMe->pMenu,TRUE);
			  pMe->status = STATUS_MENU;
			  return TRUE;
		  }
		  else //When the user press clear key and the current page is main menu, the application should exit.
			  return FALSE;

      		return(TRUE);

		 case EVT_COMMAND:
			 item = IMENUCTL_GetSel (pMe->pMenu);
			 switch(item)
			  {
			  case ID_CREATE_FILE:
				  CreateFile(pMe);
				  break;
			  case ID_READ_FILE:
				  ReadFile(pMe);
				  break;
			  default:
				  break;
			  }
			  return TRUE;


        // If nothing fits up to this point then we'll just break out
        default:
            break;
   }

   return FALSE;
}


// this function is called when your application is starting up
boolean myfile_InitAppData(myfile* pMe)
{
    // Get the device information for this handset.
    // Reference all the data by looking at the pMe->DeviceInfo structure
    // Check the API reference guide for all the handy device info you can get
    pMe->DeviceInfo.wStructSize = sizeof(pMe->DeviceInfo);
    ISHELL_GetDeviceInfo(pMe->a.m_pIShell,&pMe->DeviceInfo);

    // The display and shell interfaces are always created by
    // default, so we'll asign them so that you can access
    // them via the standard "pMe->" without the "a."
    pMe->pIDisplay = pMe->a.m_pIDisplay;
    pMe->pIShell   = pMe->a.m_pIShell;

    // Insert your code here for initializing or allocating resources...
	pMe->pMenu = NULL;
	pMe->pMyFileMgr = NULL;


    // if there have been no failures up to this point then return success
    return TRUE;
}

// this function is called when your application is exiting
void myfile_FreeAppData(myfile* pMe)
{
    // insert your code here for freeing any resources you have allocated...

    // example to use for releasing each interface:
    // if ( pMe->pIMenuCtl != NULL )         // check for NULL first
    // {
    //    IMENUCTL_Release(pMe->pIMenuCtl)   // release the interface
    //    pMe->pIMenuCtl = NULL;             // set to NULL so no problems trying to free later
    // }
    //
	if(pMe->pMenu)
	{
		IMENUCTL_Release(pMe->pMenu);
		pMe->pMenu = NULL;
	}
	if(pMe->pMyFileMgr)
	{
		IFILEMGR_Release(pMe->pMyFileMgr);
		pMe->pMyFileMgr = NULL;
	}
}

static void BuildMainMenu(myfile *pMe)
{
	if(!pMe->pMenu)
	{
		if(ISHELL_CreateInstance(pMe->pIShell,AEECLSID_MENUCTL,(void**)&pMe->pMenu) != SUCCESS)
			return ;
	}

	IMENUCTL_SetTitle(pMe->pMenu,MYFILE_RES_FILE,IDS_TITLE,NULL);

	IMENUCTL_AddItem(pMe->pMenu,MYFILE_RES_FILE,IDS_CREATE_FILE,ID_CREATE_FILE,NULL,0);
	IMENUCTL_AddItem(pMe->pMenu,MYFILE_RES_FILE,IDS_READ_FILE,ID_READ_FILE,NULL,0);

	IMENUCTL_SetActive(pMe->pMenu,TRUE);
	pMe->status = STATUS_MENU;
}

static void CreateFile(myfile *pMe)
{
	IFile   *pMyFile;
	AECHAR  w_str[100];
	char    str[100];
	AECHAR  str_open_fail[] = {'O','p','e','n',' ','f','i','l','e',' ','f','a','i','l','\0'};
	AECHAR  str_success[] = {'W','r','i','t','e',' ','S','u','c','c','e','s','s','\0'};
	AECHAR  str_fail[] = {'W','r','i','t','e',' ','F','a','i','l','\0'};

	if(ISHELL_CreateInstance(pMe->pIShell, AEECLSID_FILEMGR,(void **)&pMe->pMyFileMgr))
		return;

	IMENUCTL_SetActive(pMe->pMenu,FALSE);
	pMyFile = IFILEMGR_OpenFile(pMe->pMyFileMgr,"mydir/myfile.txt",_OFM_CREATE);
	if(pMyFile == NULL)
	{
		 IDISPLAY_ClearScreen(pMe->pIDisplay);
         IDISPLAY_DrawText(pMe->pIDisplay,    // Display instance
                           AEE_FONT_BOLD,       // Use BOLD font
                           str_open_fail,        // Text - Normally comes from resource
                           -1,                  // -1 = Use full string length
                           0,                   // Ignored - IDF_ALIGN_CENTER
                           0,                   // Ignored - IDF_ALIGN_MIDDLE
                           NULL,                // No clipping
                           IDF_ALIGN_CENTER | IDF_ALIGN_MIDDLE);
		 IDISPLAY_Update(pMe->pIDisplay);
	     pMe->status = STATUS_CREATE;
		 return;
	}
	ISHELL_LoadResString(pMe->pIShell,MYFILE_RES_FILE,IDS_FILE_DATA,w_str,sizeof(w_str));
	WSTRTOSTR(w_str,str,sizeof(str));
	if(IFILE_Write(pMyFile,str,STRLEN(str)) == 0)
	{
		IDISPLAY_ClearScreen(pMe->pIDisplay);
         IDISPLAY_DrawText(pMe->pIDisplay,    // Display instance
                           AEE_FONT_BOLD,       // Use BOLD font
                           str_fail,        // Text - Normally comes from resource
                           -1,                  // -1 = Use full string length
                           0,                   // Ignored - IDF_ALIGN_CENTER
                           0,                   // Ignored - IDF_ALIGN_MIDDLE
                           NULL,                // No clipping
                           IDF_ALIGN_CENTER | IDF_ALIGN_MIDDLE);
	}
	else
	{
		 IDISPLAY_ClearScreen(pMe->pIDisplay);
         IDISPLAY_DrawText(pMe->pIDisplay,    // Display instance
                           AEE_FONT_BOLD,       // Use BOLD font
                           str_success,        // Text - Normally comes from resource
                           -1,                  // -1 = Use full string length
                           0,                   // Ignored - IDF_ALIGN_CENTER
                           0,                   // Ignored - IDF_ALIGN_MIDDLE
                           NULL,                // No clipping
                           IDF_ALIGN_CENTER | IDF_ALIGN_MIDDLE);
	}
	IDISPLAY_Update(pMe->pIDisplay);
	IFILE_Release(pMyFile);
	pMe->status = STATUS_CREATE;
}

static void ReadFile(myfile  *pMe)
{
	IFile   *pMyFile;
	AECHAR   str_open_fail[] = {'N','o',' ','S','u','c','h',' ','f','i','l','e','\0'};
	char     buf[100];
	char     *pDest;
	AECHAR  w_buf[100];

	if(ISHELL_CreateInstance(pMe->pIShell, AEECLSID_FILEMGR,(void **)&pMe->pMyFileMgr))
		return;

	IMENUCTL_SetActive(pMe->pMenu,FALSE);
	pMyFile = IFILEMGR_OpenFile(pMe->pMyFileMgr,"mydir/myfile.txt",_OFM_READ);
	if(pMyFile == NULL)
	{
		 IDISPLAY_ClearScreen(pMe->pIDisplay);
         IDISPLAY_DrawText(pMe->pIDisplay,    // Display instance
                           AEE_FONT_BOLD,       // Use BOLD font
                           str_open_fail,        // Text - Normally comes from resource
                           -1,                  // -1 = Use full string length
                           0,                   // Ignored - IDF_ALIGN_CENTER
                           0,                   // Ignored - IDF_ALIGN_MIDDLE
                           NULL,                // No clipping
                           IDF_ALIGN_CENTER | IDF_ALIGN_MIDDLE);
		 IDISPLAY_Update(pMe->pIDisplay);
	     pMe->status = STATUS_READ;
		 return;
	}
	IFILE_Read(pMyFile,buf,sizeof(buf));
	pDest = STRCHR(buf,'.');
	pDest ++;
	*pDest = 0;
	STRTOWSTR(buf,w_buf,sizeof(w_buf));
	IDISPLAY_ClearScreen(pMe->pIDisplay);
	IDISPLAY_DrawText(pMe->pIDisplay,    // Display instance
					   AEE_FONT_BOLD,       // Use BOLD font
					   w_buf,        // Text - Normally comes from resource
					   -1,                  // -1 = Use full string length
					   0,                   // Ignored - IDF_ALIGN_CENTER
					   0,                   // Ignored - IDF_ALIGN_MIDDLE
					   NULL,                // No clipping
					   IDF_ALIGN_CENTER | IDF_ALIGN_MIDDLE);
	IDISPLAY_Update(pMe->pIDisplay);
	IFILE_Release(pMyFile);
	pMe->status = STATUS_READ;
}