mainfrm.cpp

VC++技术内幕(第四版)的实例

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

#include "stdafx.h"
#include "matplan.h"

#include "mainfrm.h"

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

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

IMPLEMENT_DYNAMIC(CMainFrame, CMDIFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
		ON_WM_CREATE()
		ON_COMMAND(ID_WINDOW_NEW1, OnWindowNewList)
		ON_COMMAND(ID_WINDOW_NEW2, OnWindowNewPlan)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// arrays of IDs used to initialize control bars

// toolbar buttons - IDs are command buttons
static UINT BASED_CODE buttons[] =
{
	// same order as in the bitmap 'toolbar.bmp'
	ID_FILE_NEW,
	ID_FILE_OPEN,
	ID_FILE_SAVE,
		ID_SEPARATOR,
	ID_EDIT_CUT,
	ID_EDIT_COPY,
	ID_EDIT_PASTE,
		ID_SEPARATOR,
	ID_FILE_PRINT,
	ID_APP_ABOUT,
	ID_CONTEXT_HELP,
};

static UINT BASED_CODE indicators[] =
{
	ID_SEPARATOR,			// status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
}

CMainFrame::~CMainFrame()
{
}

/////////////////////////////////////////////////////////////////////////////
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	if (!m_wndToolBar.Create(this) ||
		!m_wndToolBar.LoadBitmap(IDR_MAINFRAME) ||
		!m_wndToolBar.SetButtons(buttons,
		  sizeof(buttons)/sizeof(UINT)))
	{
		TRACE("Failed to create toolbar\n");
		return -1;		// fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE("Failed to create status bar\n");
		return -1;		// fail to create
	}

	return 0;
}


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

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

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

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame commands
void CMainFrame::OnWindowNewList()
{
	CMDIChildWnd* pActiveChild = MDIGetActive();
	CDocument* pDocument;
	if (pActiveChild == NULL ||
	  (pDocument = pActiveChild->GetActiveDocument()) == NULL)
	{
		TRACE0("Warning: No active document for WindowNew command\n");
		AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
		return;		// command failed
	}

	// otherwise we have a new frame !
	CDocTemplate* pTemplate = ((CMatplanApp*) AfxGetApp())->m_pTemplate1;
	ASSERT_VALID(pTemplate);
	CFrameWnd* pFrame = pTemplate->CreateNewFrame(pDocument, pActiveChild);
	if (pFrame == NULL)
	{
		TRACE0("Warning: failed to create new frame\n");
		return;		// command failed
	}

	pTemplate->InitialUpdateFrame(pFrame, pDocument);
}

/////////////////////////////////////////////////////////////////////////////
void CMainFrame::OnWindowNewPlan()
{
	CMDIChildWnd* pActiveChild = MDIGetActive();
	CDocument* pDocument;
	if (pActiveChild == NULL ||
	  (pDocument = pActiveChild->GetActiveDocument()) == NULL)
	{
		TRACE0("Warning: No active document for WindowNew command\n");
		AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
		return;		// command failed
	}

	// otherwise we have a new frame !
	CDocTemplate* pTemplate = ((CMatplanApp*) AfxGetApp())->m_pTemplate2;
	ASSERT_VALID(pTemplate);
	CFrameWnd* pFrame = pTemplate->CreateNewFrame(pDocument, pActiveChild);
	if (pFrame == NULL)
	{
		TRACE0("Warning: failed to create new frame\n");
		return;		// command failed
	}

	pTemplate->InitialUpdateFrame(pFrame, pDocument);
}

///////////////////////////////////////////////////////////////////
IMPLEMENT_DYNCREATE(CMDISpecialChildWnd, CMDIChildWnd)

BEGIN_MESSAGE_MAP(CMDISpecialChildWnd, CMDIChildWnd)
	ON_MESSAGE(WM_COMMANDHELP, OnCommandHelp)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
CMDISpecialChildWnd::CMDISpecialChildWnd()
{
}

/////////////////////////////////////////////////////////////////////////////
LRESULT CMDISpecialChildWnd::OnCommandHelp(WPARAM wParam, LPARAM lParam)
{
	if (lParam == 0) {
		if (m_nIDTracking > 0xe001) {
			// frame's own menu (system menu)
			lParam = HID_BASE_COMMAND + m_nIDTracking;
		}
		else {
			CView* pView = GetActiveView();
			if(pView) {
				// delegate the help command to the view
				return pView->SendMessage(WM_COMMANDHELP, wParam, 0L);
			}
			else {
				lParam = HID_BASE_RESOURCE + IDR_MAINFRAME;
			}
		}
	}
	if(lParam != 0) {
		AfxGetApp()->WinHelp(lParam);
		return TRUE;
	}
	return FALSE;
}