Mastering MFC Development/MMD.ISO/samples/c07/tmpgraph/mainfrm.cpp

C/C++ Source or Header | 1997-02-20 | 4.7 KB | 194 lines

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "TmpGraph.h"

#include "TGrafDoc.h"
#include "GrafView.h"
#include "NumbView.h"
#include "Dialogs.h"

#include "MainFrm.h"

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

UINT reg_msg = RegisterWindowMessage(MY_TEMP_MSG);

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
    //{{AFX_MSG_MAP(CMainFrame)
    ON_COMMAND(ID_CHANGE_SETDAILYTEMP, OnChangeSetdailytemp)
    //}}AFX_MSG_MAP
    ON_REGISTERED_MESSAGE(reg_msg, MyTemperatureHandler)
    ON_COMMAND_RANGE(ID_MONTH_JANUARY, ID_MONTH_LEAPFEBRUARY, OnMonth)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction
void CMainFrame::OnMonth(UINT nID)
{
    CTemperatureGraphDoc * pDoc = (CTemperatureGraphDoc *)GetActiveDocument();
    int daycount, formersize;

    formersize = pDoc->temps.GetSize();

    switch (nID)
    {
        case ID_MONTH_JANUARY:
        case ID_MONTH_MARCH:
        case ID_MONTH_MAY:
        case ID_MONTH_JULY:
        case ID_MONTH_AUGUST:
        case ID_MONTH_OCTOBER:
        case ID_MONTH_DECEMBER:
            daycount = 31;
            break;
        case ID_MONTH_FEBRUARY:
            daycount = 28;
            break;
        case ID_MONTH_APRIL:
        case ID_MONTH_JUNE:
        case ID_MONTH_SEPTEMBER:
        case ID_MONTH_NOVEMBER:
            daycount = 30;
            break;
        default:    // Leap year February
            daycount = 29;
    }
    pDoc->temps.SetSize(daycount);

    // If the array has been extended, then the newly appended
    // elements will have to be initialized.
    if (formersize < daycount)
        while (formersize <= daycount)
        {
            pDoc->temps[formersize - 1].x = formersize - 1;
            pDoc->temps[formersize - 1].y = DEFAULT_TEMPERATURE;
            formersize++;
        }

    // convert nID to a subscript so as to load a string
    // from the string table, where the months have consecutive
    // IDs of IDS_JANUARY..IDS_LEAP_FEBRUARY
    CString s;
    s.LoadString(IDS_JANUARY + (nID-ID_MONTH_JANUARY));

    pDoc->m_month = s;
    pDoc->UpdateAllViews(NULL);
    pDoc->SetModifiedFlag(TRUE);
}

LRESULT CMainFrame::MyTemperatureHandler(WPARAM wParam, LPARAM lParam)
{
    CTemperatureGraphDoc * pDoc;
    pDoc = (CTemperatureGraphDoc *)GetActiveDocument();

    switch (wParam)
    {
        case ML_APPLY:
            // If the temperature for the given day has changed,
            // capture the variable and redraw the views.
            if (m_pDlg->m_temperature != pDoc->temps[m_pDlg->m_day-1].y)
            {
                 pDoc->temps[m_pDlg->m_day-1].y = m_pDlg->m_temperature;
                 pDoc->UpdateAllViews(NULL);
                 pDoc->SetModifiedFlag(TRUE);
            }
            break;
        case ML_CANCEL:
            m_pDlg = 0;
    }
    return TRUE;
}

CMainFrame::CMainFrame()
{
    m_pDlg = 0;
}

CMainFrame::~CMainFrame()
{
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
    return CFrameWnd::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
    CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
    CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
    // This is the code for a static splitter.
    CRect cr;
    GetClientRect(&cr);

    int rc;
    m_wndSplitter.CreateStatic(this, 2, 1);

    // The top pane gets the default view
    rc = m_wndSplitter.CreateView(0, 0,
                                pContext->m_pNewViewClass,
                                CSize(cr.Width(), cr.Height() / 2),
                                pContext);
    if (FALSE == rc)
        return rc;

    // The bottom pane gets the additional view.
    rc = m_wndSplitter.CreateView(1, 0,
                                RUNTIME_CLASS(CTemperatureNumbersView),
                                CSize(cr.Width(), cr.Height() / 2),
                                pContext);

    return rc;
}

// In an SDI app with a splitter with 2 different views, you have to
// put command handlers in the frame class to make them available
// regardless of which pane has focus.
// If you put it in a view class, then that menu is not available when
// the other view is active.
void CMainFrame::OnChangeSetdailytemp()
{
    CTemperatureGraphDoc * pDoc =
        (CTemperatureGraphDoc *)GetActiveDocument();

    // Create the dialog object.
    m_pDlg = new CTemperatureDlg(this);

    // Initialize members of the dialog class.
    m_pDlg->m_day = 1;
    m_pDlg->m_temperature = pDoc->temps[0].y;
    m_pDlg->m_MaxDays = pDoc->temps.GetSize();

    m_pDlg->Create(IDD_TEMPERATURE);

    m_pDlg->ShowWindow(SW_RESTORE);
}