notebookdoc.cpp

notbook是VS2005下WinCE6.0记事本源码

// NoteBookDoc.cpp : implementation of the CNoteBookDoc class
//

#include "stdafx.h"
#include "NoteBook.h"
#include "NoteBookView.h"
#include "NoteBookDoc.h"

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

/////////////////////////////////////////////////////////////////////////////
// CNoteBookDoc

IMPLEMENT_DYNCREATE(CNoteBookDoc, CDocument)

BEGIN_MESSAGE_MAP(CNoteBookDoc, CDocument)
	//{{AFX_MSG_MAP(CNoteBookDoc)
	ON_COMMAND(ID_APP_EXIT2, OnAppExit2)
	ON_COMMAND(ID_FILE_NEW2, OnFileNew2)
	ON_COMMAND(ID_FILE_OPEN2, OnFileOpen2)
	ON_COMMAND(ID_FILE_SAVE2, OnFileSave2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNoteBookDoc construction/destruction

CNoteBookDoc::CNoteBookDoc()
{
}

CNoteBookDoc::~CNoteBookDoc()
{
}

/////////////////////////////////////////////////////////////////////////////
// CNoteBookDoc serialization

void CNoteBookDoc::Serialize(CArchive& ar)
{
	/////((CEditView*)m_viewList.GetHead())->SerializeRaw(ar);
}

/////////////////////////////////////////////////////////////////////////////
// CNoteBookDoc diagnostics

#ifdef _DEBUG
void CNoteBookDoc::AssertValid() const
{
	CDocument::AssertValid();
}

void CNoteBookDoc::Dump(CDumpContext& dc) const
{
	CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CNoteBookDoc commands
BOOL CNoteBookDoc::OnNewDocument()
{
	//if (!CDocument::OnNewDocument())
	//	return FALSE;
	//////((CEditView*)m_viewList.GetHead())->SetWindowText(L"");
	return TRUE;
}

BOOL CNoteBookDoc::OnSaveDocument(LPCTSTR lpszPathName) 
{
	//////return CDocument::OnSaveDocument(lpszPathName);
	return  TRUE;
}

BOOL CNoteBookDoc::OnOpenDocument(LPCTSTR lpszPathName) 
{
	//if (!CDocument::OnOpenDocument(lpszPathName))
	//	return FALSE;
	
	return TRUE;
}

void CNoteBookDoc::OnCloseDocument() 
{
	CDocument::OnCloseDocument();   ///必须要
}

BOOL CNoteBookDoc::SaveModified() 
{
	/////return CDocument::SaveModified();	
	return  TRUE;
}

void CNoteBookDoc::DeleteContents() 
{
	/////CDocument::DeleteContents();
}

///////////////////////////////////////////////////////////
void CNoteBookDoc::OnFileNew2() 
{
	CNoteBookView*  pView = (CNoteBookView*)m_viewList.GetHead();
	CEdit& theEdit = pView->GetEditCtrl();
	if(theEdit.GetModify())
	{
		///////提示是否保存
		if(pView->MessageBox(L"是否保存修改过的数据", NULL, MB_YESNO | MB_ICONQUESTION) == IDYES)
		{
			//////调用保存函数
			OnFileSave2();
		}		
	}
	//////清除原来数据
	theEdit.SetWindowText(L"");
	pView->m_strFilePath = L"";
	theEdit.SetModify(FALSE);   ///设置状态为未修改
}

void CNoteBookDoc::OnFileOpen2() 
{
	CNoteBookView*  pView = (CNoteBookView*)m_viewList.GetHead();
	CEdit& theEdit = pView->GetEditCtrl();
	if(theEdit.GetModify())
	{
		///////提示是否保存
		if(pView->MessageBox(L"是否保存修改过的数据", NULL, MB_YESNO | MB_ICONQUESTION) == IDYES)
		{
			//////调用保存函数
			OnFileSave2();
		}		
	}	
	//////////打开文件对话框，将文件内容添加到编辑框里
	WCHAR  chFilter[] = L"Unicode文件 (*.txt)|*.txt|所有文件 (*.*)|*.*||";
	CFileDialog  fileDlg(TRUE, NULL, NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, chFilter);
	fileDlg.m_ofn.lpstrInitialDir = L"\\hard disk\\kernel";
	CString  pathName;
	if(fileDlg.DoModal() != IDOK)
	{
		return;
	}
	pathName = fileDlg.GetPathName();
	CFile  file;
	if(! file.Open(pathName, CFile::modeRead))
	{
		AfxMessageBox(L"不能打开此文件");
		return;
	}
	if(file.GetLength() > 128 * 1024)  ///bytes
	{
		AfxMessageBox(L"文件过大");
		return;
	}
	WCHAR*  buffer = new WCHAR[64 * 1024 + 1];  //wchar
	if(buffer == NULL)
	{
		AfxMessageBox(L"内存不足");
		return;
	}
	UINT  uTmp = file.Read((void*)buffer, file.GetLength());
	if(uTmp != file.GetLength())
	{
		pView->MessageBox(L"读数据出现错误", NULL, MB_ICONERROR);
		return;
	}
	buffer[uTmp / 2] = NULL;  ////'\0'
	file.Close();
	theEdit.SetWindowText(buffer);
	theEdit.SetModify(FALSE);  ///设置状态为未修改
	pView->m_strFilePath = pathName; ///保存路径 
	delete[]  buffer;
}

void CNoteBookDoc::OnFileSave2() 
{
	CNoteBookView*  pView = (CNoteBookView*)m_viewList.GetHead();
	CEdit& theEdit = pView->GetEditCtrl();
	//////先复制到缓冲区
	WCHAR*  buffer = new WCHAR[64 * 1024 + 1];  //wchar
	if(buffer == NULL)
	{
		AfxMessageBox(L"内存不足");
		return;
	}
	CString  strT;
	theEdit.GetWindowText(strT);
	wcscpy(buffer, strT);
	
	CFile  file;
	if(pView->m_strFilePath != L"")
	{
		if(! file.Open(pView->m_strFilePath, CFile::modeWrite))
		{
			AfxMessageBox(L"无法保存数据，不能打开此文件");
			return;
		}
		file.SetLength(0);  /////清文件内容
		file.Write(buffer, strT.GetLength() * 2);   //wchar
		file.Close();		
	}
	else
	{
		//////文件保存对话框
		WCHAR  chFilter[] = L"Unicode文件 (*.txt)|*.txt|所有文件 (*.*)|*.*||";		
		CFileDialog  fileDlg(FALSE, L"txt", NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, chFilter);
		fileDlg.m_ofn.lpstrInitialDir = L"\\hard disk\\kernel";
		CString  pathName; 
		if(fileDlg.DoModal() != IDOK)
		{
			return;
		}
		pathName = fileDlg.GetPathName();
		CFile  file2;
		if(! file2.Open(pathName, CFile::modeCreate | CFile::modeWrite))
		{
			AfxMessageBox(L"不能创建此文件/cannot create");
			return;	
		}
		file2.Write(buffer, strT.GetLength() * 2);   //wchar
		file2.Close();
		pView->m_strFilePath = pathName;
	}
	theEdit.SetModify(FALSE);  ///设置状态为未修改
	delete[]  buffer;
}

void CNoteBookDoc::OnAppExit2() 
{
	CNoteBookView*  pView = (CNoteBookView*)m_viewList.GetHead();
	CEdit& theEdit = pView->GetEditCtrl();
	if(theEdit.GetModify())
	{
		OnFileSave2();
	}	
	AfxGetMainWnd()->SendMessage(WM_CLOSE);  ///发送消息关闭程序	
}