www.pudn.com > vc++peizhun.rar > FreTransDoc.cpp

// FreTransDoc.cpp : implementation of the CFreTransDoc class 
// 
 
#include "stdafx.h" 
#include "FreTrans.h" 
 
#include "FreTransDoc.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CFreTransDoc 
 
IMPLEMENT_DYNCREATE(CFreTransDoc, CDocument) 
 
BEGIN_MESSAGE_MAP(CFreTransDoc, CDocument) 
	//{{AFX_MSG_MAP(CFreTransDoc) 
	ON_COMMAND(ID_FILE_REOPEN, OnFileReopen) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CFreTransDoc construction/destruction 
 
CFreTransDoc::CFreTransDoc() 
{ 
	// TODO: add one-time construction code here 
	// 默认背景色，灰色 
	m_refColorBKG = 0x00808080;	 
	 
	// 初始化变量 
	m_pDibImage = NULL; 
	m_hDIB = NULL; 
	m_palDIB = NULL; 
	m_sizeDoc = CSize(1,1); 
} 
 
CFreTransDoc::~CFreTransDoc() 
{ 
	// 判断DIB对象是否存在 
	if (m_hDIB != NULL) 
	{ 
		// 清除DIB对象 
		::GlobalFree((HGLOBAL) m_hDIB); 
	} 
	 
	// 判断调色板是否存在 
	if (m_palDIB != NULL) 
	{ 
		// 清除调色板 
		delete m_palDIB; 
		m_palDIB = NULL; 
	} 
 
	// 判断DibImage对象是否存在 
	if (m_pDibImage != NULL) 
	{ 
		// 清除DibImage对象 
		delete m_pDibImage; 
		m_pDibImage = NULL; 
	} 
} 
 
BOOL CFreTransDoc::OnNewDocument() 
{ 
	if (!CDocument::OnNewDocument()) 
		return FALSE; 
 
	// TODO: add reinitialization code here 
	// (SDI documents will reuse this document) 
 
	return TRUE; 
} 
 
 
 
///////////////////////////////////////////////////////////////////////////// 
// CFreTransDoc serialization 
 
void CFreTransDoc::Serialize(CArchive& ar) 
{ 
	if (ar.IsStoring()) 
	{ 
		// TODO: add storing code here 
	} 
	else 
	{ 
		// TODO: add loading code here 
	} 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CFreTransDoc diagnostics 
 
#ifdef _DEBUG 
void CFreTransDoc::AssertValid() const 
{ 
	CDocument::AssertValid(); 
} 
 
void CFreTransDoc::Dump(CDumpContext& dc) const 
{ 
	CDocument::Dump(dc); 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CFreTransDoc commands 
 
void CFreTransDoc::ReplaceHDIB(HDIB hDIB) 
{ 
	// 替换DIB，在功能粘贴中用到该函数	 
	if (m_hDIB != NULL) 
	{ 
		::GlobalFree((HGLOBAL) m_hDIB); 
	} 
	m_hDIB = hDIB;		 
} 
 
void CFreTransDoc::InitDIBData() 
{ 
	// 初始化DIB对象 
 
	if (m_palDIB != NULL) 
	{ 
		delete m_palDIB; 
		m_palDIB = NULL; 
	}	 
	if (m_hDIB == NULL) 
	{ 
		return; 
	} 
	 
	LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) m_hDIB); 
	 
	// 判断图像是否过大 
	if (m_pDibImage->DIBWidth(lpDIB) > INT_MAX ||m_pDibImage->DIBHeight(lpDIB)  
		> INT_MAX) 
	{ 
		::GlobalUnlock((HGLOBAL) m_hDIB); 
		::GlobalFree((HGLOBAL) m_hDIB); 
 
		m_hDIB = NULL; 
		 
		CString strMsg; 
		strMsg = "BMP图像太大！"; 
		MessageBox(NULL, strMsg, "系统提示", MB_ICONINFORMATION | MB_OK); 
 
		return; 
	} 
	 
	m_sizeDoc = CSize((int) m_pDibImage->DIBWidth(lpDIB),  
		(int) m_pDibImage->DIBHeight(lpDIB)); 
	 
	::GlobalUnlock((HGLOBAL) m_hDIB); 
	 
	// 创建新调色板 
	m_palDIB = new CPalette; 
	if (m_palDIB == NULL) 
	{ 
		::GlobalFree((HGLOBAL) m_hDIB); 
		m_hDIB = NULL; 
 
		return; 
	} 
 
	if (m_pDibImage->CreateDIBPalette(m_hDIB, m_palDIB) == NULL) 
	{ 
		delete m_palDIB; 
		m_palDIB = NULL; 
 
		return; 
	} 
} 
 
BOOL CFreTransDoc::OnOpenDocument(LPCTSTR lpszPathName)  
{ 
	CFile file; 
	CFileException fe; 
 
	if (!file.Open(lpszPathName, CFile::modeRead | CFile::shareDenyWrite, &fe)) 
	{ 
		ReportSaveLoadException(lpszPathName, &fe,FALSE,  
			AFX_IDP_FAILED_TO_OPEN_DOC); 
 
		return FALSE; 
	} 
	 
	DeleteContents(); 
 
	BeginWaitCursor(); 
 
	if(m_pDibImage != NULL) 
	{ 
		delete m_pDibImage; 
		m_pDibImage = NULL; 
	} 
	m_pDibImage = new CDibImage; 
 
	TRY 
	{ 
		m_hDIB = m_pDibImage->ReadDIBFile(file); 
	} 
	CATCH (CFileException, eLoad) 
	{ 
		file.Abort(); 
		EndWaitCursor(); 
 
		ReportSaveLoadException(lpszPathName, eLoad,FALSE,  
			AFX_IDP_FAILED_TO_OPEN_DOC); 
		 
		m_hDIB = NULL; 
 
		if(m_pDibImage != NULL) 
		{ 
			delete m_pDibImage; 
			m_pDibImage = NULL; 
		} 
 
		return FALSE; 
	} 
	END_CATCH 
 
	InitDIBData(); 
	EndWaitCursor(); 
	 
	// 判断读取文件是否成功 
	if (m_hDIB == NULL) 
	{ 
		CString strMsg; 
		strMsg = "读取图像时出错！可能是不支持该类型的图像文件！"; 
		MessageBox(NULL, strMsg, "系统提示", MB_ICONINFORMATION | MB_OK); 
 
		if(m_pDibImage != NULL) 
		{ 
			delete m_pDibImage; 
			m_pDibImage = NULL; 
		} 
		 
		return FALSE; 
	} 
		 
	SetPathName(lpszPathName);			// 设置文件名称	 
	SetModifiedFlag(FALSE);				// 初始化胀标记为FALSE 
 
	return TRUE; 
} 
 
BOOL CFreTransDoc::OnSaveDocument(LPCTSTR lpszPathName)  
{ 
	CFile file; 
	CFileException fe; 
 
	if (!file.Open(lpszPathName, CFile::modeCreate |CFile::modeReadWrite  
		| CFile::shareExclusive, &fe)) 
	{ 
		ReportSaveLoadException(lpszPathName,&fe,TRUE,AFX_IDP_INVALID_FILENAME); 
		return FALSE; 
	} 
 
	BOOL bSuccess = FALSE; 
	TRY 
	{ 
		BeginWaitCursor(); 
		bSuccess = m_pDibImage->SaveDIB(m_hDIB, file); 
		file.Close(); 
	} 
	CATCH (CException, eSave) 
	{ 
		file.Abort(); 
		EndWaitCursor(); 
		ReportSaveLoadException(lpszPathName,eSave,TRUE, 
			AFX_IDP_FAILED_TO_SAVE_DOC); 
 
		return FALSE; 
	} 
	END_CATCH 
 
	EndWaitCursor(); 
	SetModifiedFlag(FALSE); 
 
	if (!bSuccess) 
	{ 
		// 保存失败，可能是其它格式的DIB，可以读取但是不能保存 
		// 或者是SaveDIB函数有误 
		CString strMsg; 
		strMsg = "无法保存BMP图像！"; 
		MessageBox(NULL, strMsg, "系统提示", MB_ICONINFORMATION | MB_OK); 
	} 
	 
	return bSuccess; 
} 
 
void CFreTransDoc::OnFileReopen()  
{ 
	// 重新打开图像，放弃所有修改 
  
	// 判断当前图像是否已经被改动 
	if (IsModified()) 
	{ 
		if (MessageBox(NULL, "重新打开图像将丢失所有改动！是否继续？",  
			"系统提示", MB_ICONQUESTION | MB_YESNO) == IDNO) 
		{ 
			return; 
		} 
	} 
	 
	CFile file; 
 	CFileException fe; 
 	CString strPathName; 
 	strPathName = GetPathName(); 
 
 	if (!file.Open(strPathName, CFile::modeRead | CFile::shareDenyWrite, &fe)) 
 	{ 
 		ReportSaveLoadException(strPathName,&fe,FALSE,AFX_IDP_FAILED_TO_OPEN_DOC); 
  
 		return; 
 	} 
 	 
 	BeginWaitCursor(); 
 	 
	if(m_pDibImage != NULL) 
	{ 
		delete m_pDibImage; 
		m_pDibImage = NULL; 
	} 
	m_pDibImage = new CDibImage; 
 
 	TRY 
 	{ 
 		m_hDIB = m_pDibImage->ReadDIBFile(file); 
 	} 
 	CATCH (CFileException, eLoad) 
 	{ 
 		file.Abort(); 
 		EndWaitCursor(); 
 		 
 		ReportSaveLoadException(strPathName,eLoad,FALSE,AFX_IDP_FAILED_TO_OPEN_DOC); 
  
 		m_hDIB = NULL; 
		if(m_pDibImage != NULL) 
		{ 
			delete m_pDibImage; 
			m_pDibImage = NULL; 
		} 
 
 		return; 
 	} 
 	END_CATCH 
 	 
 	InitDIBData(); 
 	 
 	if (m_hDIB == NULL) 
 	{ 
 		CString strMsg; 
 		strMsg = "读取图像时出错！可能是不支持该类型的图像文件！"; 
 		MessageBox(NULL, strMsg, "系统提示", MB_ICONINFORMATION | MB_OK); 
 
 		EndWaitCursor(); 
 
		if(m_pDibImage != NULL) 
		{ 
			delete m_pDibImage; 
			m_pDibImage = NULL; 
		} 
  
 		return; 
 	} 
 	 
 	SetModifiedFlag(FALSE); 
 	UpdateAllViews(NULL); 
 	EndWaitCursor(); 
 
 	return; 
}