persistdlg.cpp

visual c++ 实例编程

/*  This file was written by Amir Israeli , July 2000   Email: [e-mail]  
No warranty of any kind . Dont remove this header . Thanks.
*/
// PersistDlg.cpp : implementation file
//

#include "stdafx.h"
#include "serialize.h"
#include "PersistDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CPersistDlg dialog


CPersistDlg::CPersistDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPersistDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPersistDlg)
	m_strDefault = _T("");
	m_iAge = 0;
	m_strName = _T("");
	m_strPoint = _T("");
	m_strRect = _T("");
	//}}AFX_DATA_INIT
}


void CPersistDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPersistDlg)
	DDX_Text(pDX, IDC_DEFAULT, m_strDefault);
	DDX_Text(pDX, IDC_AGE, m_iAge);
	DDV_MinMaxInt(pDX, m_iAge, 0, 150);
	DDX_Text(pDX, IDC_NAME, m_strName);
	DDX_Text(pDX, IDC_POINT, m_strPoint);
	DDX_Text(pDX, IDC_RECT, m_strRect);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CPersistDlg, CDialog)
	//{{AFX_MSG_MAP(CPersistDlg)
	ON_BN_CLICKED(IDC_INSTALL, OnInstall)
	ON_BN_CLICKED(IDC_UNINSTALL, OnUninstall)
	ON_BN_CLICKED(IDC_LOAD, OnLoad)
	ON_BN_CLICKED(IDC_SAVE, OnSave)
	ON_BN_CLICKED(IDC_SAVEMAP, OnSavemap)
	ON_BN_CLICKED(IDC_LOADMAP, OnLoadmap)
	ON_BN_CLICKED(IDC_INFO, OnInfo)
	ON_BN_CLICKED(IDC_LOADRES, OnLoadres)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()



BOOL CPersistDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	
	/* This is how we build a map in prorammatic way , instead we 
		 (1) can load a resource (LoadFromResource) in one line : and by that
		 eliminate the need to write these line (great when we have a big map)
		 (2) another method is using an external file (not recommented: what 
		 happens if someone (for heaven sake) deletes it.
	*/
	persistObj.InsertPath(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence"),FALSE);
	persistObj.InsertValue( NULL, _T(""), _T("CString") );//default value
	persistObj.InsertValue( NULL, _T("Name"), _T("CString") );
	persistObj.InsertValue( NULL, _T("Age"), _T("int"));//default value

	persistObj.InsertPath(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey"),FALSE);
	persistObj.InsertValue( NULL, _T("rect"), _T("CRect") );
	persistObj.InsertValue( NULL, _T("point"), _T("CPoint") );
	persistObj.InsertPath(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey\\Subkey2Delete"),TRUE);
	persistObj.InsertPath(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey\\Another SubKey"),TRUE);
	//////////////////////////////////


	/// setting data tips
	if (tip.Create(this)) {
		tip.AddTool( GetDlgItem(IDC_INSTALL) , _T("Installs a map of keys \nand values in the registry ,\ninstalled values of any type \nwill have default data (Zero's) ,\n so you'll have to take another\n step to initialize it."));
		tip.AddTool( GetDlgItem(IDC_UNINSTALL) , _T("UnInstalls a map from the \nregistry , If you want to leave a\n key or value (still there after \nuninstalling) you can do it \n(a BOOL flag)"));
		tip.AddTool( GetDlgItem(IDC_LOAD) , _T("load data of values from their \nplace in registry and show it in \nedit boxes , if edit ctrl doesn't \nsupport a ddx with the type \nof value : as the case of rect/point data\n use some conversion function"));
		tip.AddTool( GetDlgItem(IDC_SAVE) , _T("save the data in edit boxes\ninto proper place in registry\n (use conversion if direct\n ddx not supported)"));
		tip.AddTool( GetDlgItem(IDC_SAVEMAP) , _T("save the map to \nan external file"));
		tip.AddTool( GetDlgItem(IDC_LOADMAP) , _T("load map from external file"));
		tip.AddTool( GetDlgItem(IDC_INFO) , _T("get information about your map\n (defined only in debug build)"));
		tip.AddTool( GetDlgItem(IDC_LOADRES) , _T("load a map from a resource"));
	}

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}


/////////////////////////////////////////////////////////////////////////////
// CPersistDlg message handlers

void CPersistDlg::OnInstall() 
{
	persistObj.Install();//TRUE
}

void CPersistDlg::OnUninstall() 
{
	persistObj.UnInstall();//Install(FALSE);
}

///// These 2 functions : load + Save will use the same handler with
// minor modifications to help with transformation of types
void CPersistDlg::OnLoad() 
{
	// call Persist
	PersistObject(TRUE);

	UpdateData(FALSE);//update controls
}
void CPersistDlg::OnSave() 
{
	UpdateData(TRUE); //update variables
	//call persist
	PersistObject(FALSE);
}

void CPersistDlg::PersistObject(BOOL bLoad) //TRUE= loading
{
	// coping the whole section from WM_INITDIALOG function handler
	// and modifying the Insert... functions (used in Installation) to
	// Path/Value

	//each path marks the begining on a new search path for values
	//the value names that come after each path are under that path
	persistObj.Path( _T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence"));
	persistObj.Value( _T("") , &m_strDefault ,bLoad);//default value
	persistObj.Value( _T("Name"), &m_strName ,bLoad);
	persistObj.Value( _T("Age"), &m_iAge ,bLoad);//default value

	//setting a new path
	persistObj.Path(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey"));

	//such values are a bit problematic (need to transform from CString 2 that type and oposite)
	//(problem : there's no ddx-action between the member variable attached to edit-ctrl
	// to the variable that the data entered inside is going to be (MFC has built in ddx 
	//conversions from edit-ctrls to int's strings DWORD's time_t ... 
	//(but not for rects or points which are demonstrated
	CRect tmpRect;
	CPoint tmpPoint;
	if (bLoad) { //in load
		persistObj.Value( _T("rect"), &tmpRect  ,bLoad);
		persistObj.Value( _T("point"), &tmpPoint  ,bLoad);
		m_strPoint.Format("%d %d",tmpPoint.x,tmpPoint.y);
		m_strRect.Format("%d %d %d %d",tmpRect.left,tmpRect.top,tmpRect.right,tmpRect.bottom);
	}
	else { //in save (look into the function)
		//converting string to rect and point
		persistObj.FormatElements( m_strRect, _T("%d%d%d%d"),&tmpRect.left,&tmpRect.top,&(tmpRect.right),&(tmpRect.bottom));
		persistObj.FormatElements( m_strPoint, _T("%d%d"),&tmpPoint.x,&tmpPoint.y);
		
		//saving those converted rect and point
		persistObj.Value( _T("rect"), &tmpRect  ,bLoad);
		persistObj.Value( _T("point"), &tmpPoint  ,bLoad);
	}
	//these converions are done since I convert a string(member of dialog)
	//to required variables (look at source how it's done)

	//values that are not contain values are not needed to persist
//	persistObj.Path(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey\\Subkey2Delete"), bLoad);
//	persistObj.Path(_T("HKEY_CURRENT_USER\\Software\\Amir Israeli\\Registry Persistence\\Some SubKey\\Another SubKey"), bLoad);

}
//persisting of raw data : right from vriables will be much 
//easier than that of controls : thers a need to manipulate some of data



//these 2 function use a feature of creating an outer file :
// a map of persisting the contents : you'll be able to insert this file 
// as a resource and treat it as a memory mapped file
void CPersistDlg::OnSavemap() 
{
	//you can put any file name(no path=in current dir) (or full path)
	persistObj.Serialize( _T("mydata.map"), FALSE);
}

void CPersistDlg::OnLoadmap() 
{
	//loading map from file
	persistObj.Serialize( _T("mydata.map"), TRUE);

}

void CPersistDlg::OnInfo() 
{
#ifdef _DEBUG
	persistObj.Info();
#else
	AfxMessageBox(_T("Info function not \nsuppoted in debug version") ,MB_OK,0);
#endif
}

//Load a map from a resource
void CPersistDlg::OnLoadres() 
{
	persistObj.LoadFromResource( IDR_MAP1,_T("MAP"));
	
}

BOOL CPersistDlg::PreTranslateMessage(MSG* pMsg) 
{
	tip.RelayEvent(pMsg);

	return CDialog::PreTranslateMessage(pMsg);
}