ex16c.cpp

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// Ex16c.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "Ex16c.h"
#include "MainFrm.h"

#include "Ex16cDoc.h"
#include "Ex16cView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CEx16cApp

BEGIN_MESSAGE_MAP(CEx16cApp, CWinApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
	ON_COMMAND(ID_FILE_NEW_FRAME, OnFileNewFrame)
	ON_COMMAND(ID_FILE_NEW, OnFileNew)
	// Standard file based document commands
	ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
END_MESSAGE_MAP()


// CEx16cApp construction

CEx16cApp::CEx16cApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}


// The one and only CEx16cApp object

CEx16cApp theApp;

// CEx16cApp initialization

BOOL CEx16cApp::InitInstance()
{
	// InitCommonControls() is required on Windows XP if an application
	// manifest specifies use of ComCtl32.dll version 6 or later to enable
	// visual styles.  Otherwise, any window creation will fail.
	InitCommonControls();

	CWinApp::InitInstance();

	// Initialize OLE libraries
	if (!AfxOleInit())
	{
		AfxMessageBox(IDP_OLE_INIT_FAILED);
		return FALSE;
	}
	AfxEnableControlContainer();
	// Standard initialization
	// If you are not using these features and wish to reduce the size
	// of your final executable, you should remove from the following
	// the specific initialization routines you do not need
	// Change the registry key under which our settings are stored
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));
	LoadStdProfileSettings(4);  // Load standard INI file options (including MRU)
	// Register the application's document templates.  Document templates
	//  serve as the connection between documents, frame windows and views
	CMultiDocTemplate* pDocTemplate;
	pDocTemplate = new CMultiDocTemplate(
		IDR_MAINFRAME,
		RUNTIME_CLASS(CEx16cDoc),
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window
		RUNTIME_CLASS(CEx16cView));
	m_pDocTemplate = pDocTemplate;
	AddDocTemplate(pDocTemplate);
	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);
	// Dispatch commands specified on the command line.  Will return FALSE if
	// app was launched with /RegServer, /Register, /Unregserver or /Unregister.
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;
	// The one and only window has been initialized, so show and update it
	m_pMainWnd->ShowWindow(SW_SHOW);
	m_pMainWnd->UpdateWindow();
	// call DragAcceptFiles only if there's a suffix
	//  In an SDI app, this should occur after ProcessShellCommand
	return TRUE;
}



// CAboutDlg dialog used for App About

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

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

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

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()

// App command to run the dialog
void CEx16cApp::OnAppAbout()
{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
}


// CEx16cApp message handlers

void CEx16cApp::OnFileNewFrame() 
{
	ASSERT(m_pDocTemplate != NULL);

	CDocument* pDoc = NULL;
	CFrameWnd* pFrame = NULL;

	// Create a new instance of the document referenced
	// by the m_pDocTemplate member. 
	pDoc = m_pDocTemplate->CreateNewDocument();
	if (pDoc != NULL)
	{
		// If creation worked, use create a new frame for
		// that document.
		pFrame = m_pDocTemplate->CreateNewFrame(pDoc, NULL);
		if (pFrame != NULL)
		{
			// Set the title, and initialize the document.
			// If document initialization fails, clean-up
			// the frame window and document.

			m_pDocTemplate->SetDefaultTitle(pDoc);
			if (!pDoc->OnNewDocument())
			{
				pFrame->DestroyWindow();
				pFrame = NULL;
			}
			else
			{
				// Otherwise, update the frame
				m_pDocTemplate->InitialUpdateFrame(pFrame, pDoc, TRUE);
			}
		}
	}

	// If we failed, clean up the document and show a
	// message to the user.

	if (pFrame == NULL || pDoc == NULL)
	{
		delete pDoc;
		AfxMessageBox(AFX_IDP_FAILED_TO_CREATE_DOC);
	}
}

void CEx16cApp::OnFileNew() 
{
	CDocument* pDoc = NULL;
	CFrameWnd* pFrame;
	pFrame = DYNAMIC_DOWNCAST(CFrameWnd, CWnd::GetActiveWindow());
	
	if (pFrame != NULL)
		pDoc = pFrame->GetActiveDocument();

	if (pFrame == NULL || pDoc == NULL)
	{
		// if it's the first document, create as normal
		CWinApp::OnFileNew();
	}
	else
	{
		// Otherwise, see if we have to save modified, then
		// ask the document to reinitialize itself.
		if (!pDoc->SaveModified())
			return;

		CDocTemplate* pTemplate = pDoc->GetDocTemplate();
		ASSERT(pTemplate != NULL);

		pTemplate->SetDefaultTitle(pDoc);
		pDoc->OnNewDocument();
	}
}