comgis.cpp

使用VC++程序制作的COM组件是地理信息系统的一个实例

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

#include "stdafx.h"
#include "ComGIS.h"

#include "GeoDAO.h"
#include "MainFrm.h"
#include "ChildFrm.h"
#include "ComGISDoc.h"
#include "ComGISView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CComGISApp

BEGIN_MESSAGE_MAP(CComGISApp, CWinApp)
	//{{AFX_MSG_MAP(CComGISApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
	ON_COMMAND(ID_WORKSPACE_NEW, OnWorkspaceNew)
	//}}AFX_MSG_MAP
	// Standard file based document commands
//	ON_COMMAND(ID_WORKSPACE_NEW, CWinApp::OnFileNew)
	ON_COMMAND(ID_WORKSPACE_OPEN, CWinApp::OnFileOpen)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CComGISApp construction

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

}

/////////////////////////////////////////////////////////////////////////////
// The one and only CComGISApp object

CComGISApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CComGISApp initialization

BOOL CComGISApp::InitInstance()
{
	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.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif

	// 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();  // 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_COMGISTYPE,
		RUNTIME_CLASS(CComGISDoc),
		RUNTIME_CLASS(CChildFrame), // custom MDI child frame
		RUNTIME_CLASS(CComGISView));
	AddDocTemplate(pDocTemplate);

	// create main MDI Frame window
	CMainFrame* pMainFrame = new CMainFrame;
	if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
		return FALSE;
	m_pMainWnd = pMainFrame;

	// Parse command line for standard shell commands, DDE, file open
//	CCommandLineInfo cmdInfo;
//	ParseCommandLine(cmdInfo);

	// Dispatch commands specified on the command line
//	if (!ProcessShellCommand(cmdInfo))
//		return FALSE;

	// The main window has been initialized, so show and update it.
	pMainFrame->ShowWindow(SW_SHOWMAXIMIZED);
	pMainFrame->UpdateWindow();

	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CComGISApp message handlers
//新建一个工作区文件（后缀为.wsp）
void CComGISApp::OnWorkspaceNew() 
{
	int pos, strlen;
	CString filename, workspacename, databasename;
	CFileDialog filedlg(FALSE, "NULL", "无标题", OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
		            "Workspace Files(*.wsp)|*.wsp||");

	filedlg.m_ofn.lpstrTitle ="创建工作区文件";

	if (filedlg.DoModal() == IDOK)
	{
		filename = filedlg.GetFileName();
		pos = filename.Find('.');
		databasename = filename.Left(pos);
		workspacename = databasename + ".wsp";

		strlen = databasename.GetLength();
		CFile fp(workspacename, CFile::modeCreate | CFile::modeWrite);
		fp.Write(&strlen, sizeof(int));
		fp.Write(databasename, strlen);
		fp.Close();

		OpenDocumentFile(workspacename);
	}
}

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

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)
		// No message handlers
	//}}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()

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