ماهي الطريقة المناسبة لرسم Linked List ؟

مافيه ولا رد ؟!

أولاً : لم يمر على السؤال يوم كامل حتى تستعجل وتستغرب لعدم وجود ردود .

ثانياً : اليوم جمعة ولن تجد الكثيرين على النت ...

ثالثاً : صيغة السؤال توحي أنك لا تعلم الكثير عن MFC ... كم عدد الكتب ورقية أو إلكترونية التي لديك عن MFC ؟

أصبحت الأسئلة في هذا القسم مشابهه لقسم Visual Basic (رأي شخصي)

المشكلة يا اخي العزيز cipher ان بعض الاسئلة التي اضعها لا يقوم بالرد عليها الا واحد او اثنين بالكثير للاسف :(

وانا لدي جدول يجب ان ألتزم به :(

وبالفعل لا اعلم الكثير عن MFC فانا مبتدئ لكن لدي خبرة في البرمجه بال C++ .. وحتى تكون الصورة أوضح :

برنامج يتعامل مع Linked List : اضافة ، حذف ، كم عدد العناصر ، ... إلخ . وأريد ان اضع زر جديد لطباعة جميع العناصر بحيث يقوم بفتح Dialog جديد ويرسم فيه العناصر .

سؤالك عايز شرح أكتر علشان تلاقى حد يجاوبك....

. مشكلتك فى إنك مش عارف ترسم؟

. ولا مشكلتك إنك مش عارف ترسم إيه؟

. ولا مشكلتك إنك مش عارف تطلع القيم فى الشكل اللى إنت رسمته؟

سوف اقوم بشرح المشكلة حتى تتضح للجميع وارجو ان اجد الحل باسرع وقت .

اولاً: سوف اقوم بوضع صور للواجهة للبرنامج.

أ) صورة للواجهة الرئيسية :

طبعا كل Dialog اضع له class ، ما ادري اذا كانت هذه الطريقة صحيحة او لا ؟

ثانياً: صورة لل Workspace :

أ) File View :

ب) Resource View :

ج) Class View :

ثالثاً: الكود البرمجي لل SinglyLinkedListintDlg.cpp :

// Singly Linked List intDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Singly Linked List int.h"
#include "Singly Linked List intDlg.h"

//$$$$$$$$$$$$$$$$$$$$
#include "AddFirst.h"
#include "Delete.h"
#include "Size.h"
#include "Print.h"
#include "About.h"
//$$$$$$$$$$$$$$$$$$$$


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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About



//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
//$$$$$$$$$$$$$$$$$$$$$$$ Node Class $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//

//$$$$$$$$$$$$$$$$$$$
AddFirst addFirstDLG;
Delete deleteDLG;
Size sizeDLG;
Print printDLG;
About aboutDLG;
//$$$$$$$$$$$$$$$$$$$

class Node
{
public:
	Node( int );
	~Node();

	int DATA;
	Node* next;
};

Node::Node( int nd )
{
	DATA = nd;
	next = NULL;
}

Node::~Node()
{
	next = NULL;
}



//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
//$$$$$$$$$$$$$$$$$$$$$$$ Node Class $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//


/*********************
**********************/
Node* firstPtr = NULL;
int sizeOfList;
/**********************
*********************/



class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSinglyLinkedListintDlg dialog

CSinglyLinkedListintDlg::CSinglyLinkedListintDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSinglyLinkedListintDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSinglyLinkedListintDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSinglyLinkedListintDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSinglyLinkedListintDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSinglyLinkedListintDlg, CDialog)
	//{{AFX_MSG_MAP(CSinglyLinkedListintDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_EXIT, OnExit)
	ON_BN_CLICKED(IDC_DELETE, OnDelete)
	ON_BN_CLICKED(IDC_ADD_AFTER, OnAddAfter)
	ON_BN_CLICKED(IDC_ADD_BEFORE, OnAddBefore)
	ON_BN_CLICKED(IDC_SIZE, OnSize)
	ON_BN_CLICKED(IDC_IS_EMPTY, OnIsEmpty)
	ON_BN_CLICKED(IDC_SWAP, OnSwap)
	ON_BN_CLICKED(IDC_IN_LIST, OnInList)
	ON_BN_CLICKED(IDC_GET_INDEX, OnGetIndex)
	ON_BN_CLICKED(IDC_PRINT, OnPrint)
	ON_BN_CLICKED(IDC_ADD_FIRST, OnAddFirst)
	ON_BN_CLICKED(IDC_ABOUT, OnAbout)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSinglyLinkedListintDlg message handlers

BOOL CSinglyLinkedListintDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSinglyLinkedListintDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CSinglyLinkedListintDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSinglyLinkedListintDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSinglyLinkedListintDlg::OnExit() 
{
	// TODO: Add your control notification handler code here
	MessageBox("Thank you for using our program","Singly Linked List", MB_ICONINFORMATION );
	exit(1);
}

void CSinglyLinkedListintDlg::OnAddFirst() 
{
	// TODO: Add your control notification handler code here
	addFirstDLG.DoModal();
	int newData = addFirstDLG.m_data;

	Node* newNode = new Node( newData );

	if ( firstPtr != NULL )
		{
		newNode->next=firstPtr;
		firstPtr=newNode;
		}
	else
		firstPtr = newNode;			
}

void CSinglyLinkedListintDlg::OnDelete() 
{
	// TODO: Add your control notification handler code here
	Node* currentPtr = firstPtr;
	Node* prevPtr = NULL;
	bool deleted = false;

	deleteDLG.DoModal();
	int sd = deleteDLG.m_toDelete;

	while( currentPtr != NULL )
	{
		if ( currentPtr->DATA == sd )
		{
			if ( currentPtr == firstPtr )
			{
				firstPtr = firstPtr->next;
				delete currentPtr;
				MessageBox("The node is deleted", "Singly Linked List", MB_ICONINFORMATION);
				deleted = true;
				break;
			}

			if ( currentPtr->next == NULL )
			{
				prevPtr->next = NULL;
				delete currentPtr;
				MessageBox("The node is deleted", "Singly Linked List", MB_ICONINFORMATION);
				deleted = true;
				break;
			}

			prevPtr->next = currentPtr->next;
			delete currentPtr;
			MessageBox("The node is deleted", "Singly Linked List", MB_ICONINFORMATION);
			deleted = true;
			break;
		}
	prevPtr = currentPtr;
	currentPtr = currentPtr ->next;
	}

	if ( deleted == false )
		MessageBox("The node does not exist or the list is empty", "Singly Linked List", MB_ICONEXCLAMATION );

}

void CSinglyLinkedListintDlg::OnAddAfter() 
{
	// TODO: Add your control notification handler code here

}

void CSinglyLinkedListintDlg::OnAddBefore() 
{
	// TODO: Add your control notification handler code here

}

void CSinglyLinkedListintDlg::OnSize() 
{
	// TODO: Add your control notification handler code here
	Node* currentPtr = firstPtr;
	int count=0;

	while( currentPtr != NULL )
	{
		count++;
		currentPtr = currentPtr -> next;
	}

	sizeDLG.m_size = count;
	sizeOfList = count;
	sizeDLG.DoModal();


}

void CSinglyLinkedListintDlg::OnIsEmpty() 
{
	// TODO: Add your control notification handler code here
	if ( firstPtr == NULL )
		MessageBox("The list is empty");
	else if ( firstPtr != NULL )
		MessageBox("The list is not empty");
}

void CSinglyLinkedListintDlg::OnSwap() 
{
	// TODO: Add your control notification handler code here

}

void CSinglyLinkedListintDlg::OnInList() 
{
	// TODO: Add your control notification handler code here

}

void CSinglyLinkedListintDlg::OnGetIndex() 
{
	// TODO: Add your control notification handler code here

}

void CSinglyLinkedListintDlg::OnPrint() 
{
	// TODO: Add your control notification handler code here
	Node* currentPtr = firstPtr;
	printDLG.DoModal();

	while( currentPtr != NULL )
	{
		/*
		.
		.
		.
		*/
		//cout << currentPtr->DATA << endl;
		currentPtr = currentPtr->next;
	}



}

void CSinglyLinkedListintDlg::OnAbout() 
{
	// TODO: Add your control notification handler code here
	aboutDLG.DoModal();

}

..؟