QBasic & Borland Pascal & C/Delphi5.iso/C/BC_502/CHKBOOK.PAK/CHECKVW.CPP

C/C++ Source or Header | 1997-05-06 | 5.0 KB | 189 lines

// checkvw.cpp : implementation of the CCheckView class
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1995 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.


#include "stdafx.h"
#include "chkbook.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

IMPLEMENT_DYNCREATE(CCheckView, CFormView)

BEGIN_MESSAGE_MAP(CCheckView, CFormView)
    //{{AFX_MSG_MAP(CCheckView)
    ON_COMMAND(ID_EDIT_COMMIT_CHECK, OnEditCommitCheck)
    ON_EN_CHANGE(IDC_AMOUNTNUM, OnAmountNumChange)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Construction, destruction

CCheckView::CCheckView()
    : CFormView(CCheckView::IDD)
{
    //{{AFX_DATA_INIT(CCheckView)
    m_nCheckNo = 0;
    m_dwCents = 0;
    //}}AFX_DATA_INIT
}


CCheckView::~CCheckView()
{
}

/////////////////////////////////////////////////////////////////////////////
// Operations

void CCheckView::OnUpdate(CView*, LPARAM lHint, CObject* pHint)
{
    // OnUpdate() is called whenever the document has changed and,
    // therefore, the view needs to redisplay some or all of itself.

    CChkBookDoc* pDoc = GetDocument();
    if (pDoc->GetRecordCount() == 0)
        return;

    if (DYNAMIC_DOWNCAST(CFixedLenRecHint, pHint) != NULL)
    {
        m_nCheckNo = LOWORD(lHint) + pDoc->GetFirstCheckNo();
    }
    else
    {
        m_nCheckNo = pDoc->GetActiveCheckNo();
    }

    GetDocument()->GetCheck(m_nCheckNo, m_dwCents, m_strPayTo,
        m_strDate, m_strMemo);

    UpdateData(FALSE);  // Copy the view form object's data to the
                        // controls (via DoDataExchange).

    Invalidate();       // Repaint the entire form view.
}


void CCheckView::DoDataExchange(CDataExchange* pDX)
{
    // ClassWizard maintains mappings between data of the CCheckView
    // class and the controls in the dialog template resource for this
    // form view.

    //{{AFX_DATA_MAP(CCheckView)
    DDX_Text(pDX, IDC_CHECKNO, m_nCheckNo);
    DDX_Text(pDX, IDC_DATE, m_strDate);
    DDX_Text(pDX, IDC_MEMO, m_strMemo);
    DDX_Text(pDX, IDC_PAYTO, m_strPayTo);
    DDX_DollarsCents(pDX, IDC_AMOUNTNUM, m_dwCents);
    //}}AFX_DATA_MAP

    // Update the written-out dollars and cents (eg, "nineteen and
    // 98/100ths dollars") after loading or saving the numeric
    // dollars and cents control (IDC_AMOUNTNUM).

    CString str = GetDollarsCentsText(m_dwCents);
    GetDlgItem(IDC_AMOUNTTEXT)->SetWindowText(str);
}


BOOL CCheckView::MaybeCommitDirtyCheck()
{
    // Ask the user to confirm the discarding of uncommitted changes
    // to the active check.
    // Return FALSE if the user wants to cancel the change-selection
    // command that would have discarded the uncommitted changes; and
    // set the focus

    DWORD dwCents;
    CString strPayTo, strDate, strMemo;

    // If there is a validation error, then let UpdateData()
    // return focus to the offending control.
    if (!UpdateData())
        return FALSE;

    CChkBookDoc* pDoc = GetDocument();
    ASSERT(m_nCheckNo == pDoc->GetActiveCheckNo());
    pDoc->GetCheck(m_nCheckNo, dwCents, strPayTo, strDate, strMemo);
    if (   (dwCents == m_dwCents)
        && (strPayTo == m_strPayTo)
        && (strDate == m_strDate)
        && (strMemo == m_strMemo))
        return TRUE;

    switch (AfxMessageBox(IDS_PROMPT_COMMIT_DIRTY_CHECK,
        MB_YESNOCANCEL))
    {
    case IDYES:
        pDoc->UpdateCheck(this, m_nCheckNo, m_dwCents,
            m_strPayTo, m_strDate, m_strMemo);
        return TRUE;

    case IDNO:
        return TRUE;

    case IDCANCEL:
        CMDIChildWnd* pChildWnd = (CMDIChildWnd*)GetParentFrame();
        pChildWnd->GetMDIFrame()->MDIActivate(pChildWnd);
    }
    return FALSE;
}

/////////////////////////////////////////////////////////////////////////////
// CCheckView message handlers


void CCheckView::OnEditCommitCheck()
{
    // This handler is called when the user chooses the Edit Commit
    // Check menu command or toolbar button.

    // Copy dialog fields to the view object's data members.
    // If there are validation errors, then abandon the commit.
    if (!UpdateData())
        return;


    ASSERT(m_nCheckNo == GetDocument()->GetActiveCheckNo());

    // Update the document with the values entered by the user for
    // this check.
    GetDocument()->UpdateCheck(this, m_nCheckNo, m_dwCents, m_strPayTo,
        m_strDate, m_strMemo);
}


void CCheckView::OnAmountNumChange()
{
    // When the dollar/cents amount numeric field (eg, "19.98") is changed
    // by the user, then update the dollar/cents text field
    // (eg, "Nineteen and 98/100ths Dollars").

    DWORD dwCents;
    CWnd* pCtlAmountText = GetDlgItem(IDC_AMOUNTTEXT);
    if (GetDollarsCents(GetDlgItem(IDC_AMOUNTNUM), dwCents))
    {
        CString str = GetDollarsCentsText(dwCents);
        pCtlAmountText->SetWindowText(str);
    }
    else
    {
        CString str;
        str.LoadString(IDS_UNKNOWN);
        pCtlAmountText->SetWindowText(str);
    }
}