|
|
// This is a part of the Active Template Library.
// Copyright (C) 1996-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Active Template Library Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Active Template Library product.
// atltmp.h - temporary location for these classes
#ifndef __ATLTMP_H__
#define __ATLTMP_H__
#ifndef __cplusplus
#error ATL requires C++ compilation (use a .cpp suffix)
#endif
#ifndef __ATLBASE_H__
#error atltmp.h requires atlbase.h to be included first
#endif
#pragma once
#ifndef _ATL_TMP_NO_CSTRING
#include <limits.h>
#include <stdio.h>
#endif //!_ATL_TMP_NO_CSTRING
namespace ATL {
/////////////////////////////////////////////////////////////////////////////
// Forward declarations
class CSize; class CPoint; class CRect; #ifndef _ATL_TMP_NO_CSTRING
class CString; #endif //!_ATL_TMP_NO_CSTRING
/////////////////////////////////////////////////////////////////////////////
// CSize - An extent, similar to Windows SIZE structure.
class CSize : public tagSIZE { public: // Constructors
CSize(); CSize(int initCX, int initCY); CSize(SIZE initSize); CSize(POINT initPt); CSize(DWORD dwSize);
// Operations
BOOL operator==(SIZE size) const; BOOL operator!=(SIZE size) const; void operator+=(SIZE size); void operator-=(SIZE size); bool operator!() { return !cx && !cy; }
// Operators returning CSize values
CSize operator+(SIZE size) const; CSize operator-(SIZE size) const; CSize operator-() const;
// Operators returning CPoint values
CPoint operator+(POINT point) const; CPoint operator-(POINT point) const;
// Operators returning CRect values
CRect operator+(const RECT* lpRect) const; CRect operator-(const RECT* lpRect) const; };
/////////////////////////////////////////////////////////////////////////////
// CPoint - A 2-D point, similar to Windows POINT structure.
class CPoint : public tagPOINT { public: // Constructors
CPoint() { x = 0; y = 0; } CPoint(int initX, int initY); CPoint(POINT initPt); CPoint(SIZE initSize); CPoint(DWORD dwPoint);
// Operations
void Offset(int xOffset, int yOffset); void Offset(POINT point); void Offset(SIZE size); BOOL operator==(POINT point) const; BOOL operator!=(POINT point) const; void operator+=(SIZE size); void operator-=(SIZE size); void operator+=(POINT point); void operator-=(POINT point); bool operator!() { return !x && !y; }
// Operators returning CPoint values
CPoint operator+(SIZE size) const; CPoint operator-(SIZE size) const; CPoint operator-() const; CPoint operator+(POINT point) const;
// Operators returning CSize values
CSize operator-(POINT point) const;
// Operators returning CRect values
CRect operator+(const RECT* lpRect) const; CRect operator-(const RECT* lpRect) const; };
/////////////////////////////////////////////////////////////////////////////
// CRect - A 2-D rectangle, similar to Windows RECT structure.
//typedef const RECT* LPCRECT; // pointer to read/only RECT
class CRect : public tagRECT { public: // Constructors
CRect() { left = 0; top = 0; right = 0; bottom = 0; } CRect(int l, int t, int r, int b); CRect(const RECT& srcRect); CRect(LPCRECT lpSrcRect); CRect(POINT point, SIZE size); CRect(POINT topLeft, POINT bottomRight);
// Attributes (in addition to RECT members)
int Width() const; int Height() const; CSize Size() const; CPoint& TopLeft(); CPoint& BottomRight(); const CPoint& TopLeft() const; const CPoint& BottomRight() const; CPoint CenterPoint() const;
// convert between CRect and LPRECT/LPCRECT (no need for &)
operator LPRECT(); operator LPCRECT() const;
BOOL IsRectEmpty() const; BOOL IsRectNull() const; BOOL PtInRect(POINT point) const;
// Operations
void SetRect(int x1, int y1, int x2, int y2); void SetRect(POINT topLeft, POINT bottomRight); void SetRectEmpty(); void CopyRect(LPCRECT lpSrcRect); BOOL EqualRect(LPCRECT lpRect) const;
void InflateRect(int x, int y); void InflateRect(SIZE size); void InflateRect(LPCRECT lpRect); void InflateRect(int l, int t, int r, int b); void DeflateRect(int x, int y); void DeflateRect(SIZE size); void DeflateRect(LPCRECT lpRect); void DeflateRect(int l, int t, int r, int b);
void OffsetRect(int x, int y); void OffsetRect(SIZE size); void OffsetRect(POINT point); void NormalizeRect();
// operations that fill '*this' with result
BOOL IntersectRect(LPCRECT lpRect1, LPCRECT lpRect2); BOOL IntersectRect(LPCRECT lpRect2); // use this for rect1
BOOL UnionRect(LPCRECT lpRect1, LPCRECT lpRect2); BOOL SubtractRect(LPCRECT lpRectSrc1, LPCRECT lpRectSrc2);
// Additional Operations
void operator=(const RECT& srcRect); BOOL operator==(const RECT& rect) const; BOOL operator!=(const RECT& rect) const; bool operator!() { return !left && !top && !right && !bottom; } void operator+=(POINT point); void operator+=(SIZE size); void operator+=(LPCRECT lpRect); void operator-=(POINT point); void operator-=(SIZE size); void operator-=(LPCRECT lpRect); void operator&=(const RECT& rect); void operator|=(const RECT& rect);
// Operators returning CRect values
CRect operator+(POINT point) const; CRect operator-(POINT point) const; CRect operator+(LPCRECT lpRect) const; CRect operator+(SIZE size) const; CRect operator-(SIZE size) const; CRect operator-(LPCRECT lpRect) const; CRect operator&(const RECT& rect2) const; CRect operator|(const RECT& rect2) const; CRect MulDiv(int nMultiplier, int nDivisor) const; };
/////////////////////////////////////////////////////////////////////////////
// Strings
#ifndef _ATL_TMP_NO_CSTRING
#ifndef _OLEAUTO_H_
#ifdef OLE2ANSI
typedef LPSTR BSTR; #else
typedef LPWSTR BSTR; // must (semantically) match typedef in oleauto.h
#endif
#endif
int __stdcall AfxLoadString(UINT nID, LPTSTR lpszBuf, UINT nMaxBuf);
struct CStringData { long nRefs; // reference count
int nDataLength; int nAllocLength; // TCHAR data[nAllocLength]
TCHAR* data() { return (TCHAR*)(this+1); } };
class CString { public: // Constructors
CString(); CString(const CString& stringSrc); CString(TCHAR ch, int nRepeat = 1); CString(LPCSTR lpsz); CString(LPCWSTR lpsz); CString(LPCTSTR lpch, int nLength); CString(const unsigned char* psz);
// Attributes & Operations
// as an array of characters
int GetLength() const; BOOL IsEmpty() const; void Empty(); // free up the data
TCHAR GetAt(int nIndex) const; // 0 based
TCHAR operator[](int nIndex) const; // same as GetAt
void SetAt(int nIndex, TCHAR ch); operator LPCTSTR() const; // as a C string
// overloaded assignment
const CString& operator=(const CString& stringSrc); const CString& operator=(TCHAR ch); #ifdef _UNICODE
const CString& operator=(char ch); #endif
const CString& operator=(LPCSTR lpsz); const CString& operator=(LPCWSTR lpsz); const CString& operator=(const unsigned char* psz);
// string concatenation
const CString& operator+=(const CString& string); const CString& operator+=(TCHAR ch); #ifdef _UNICODE
const CString& operator+=(char ch); #endif
const CString& operator+=(LPCTSTR lpsz);
friend CString __stdcall operator+(const CString& string1, const CString& string2); friend CString __stdcall operator+(const CString& string, TCHAR ch); friend CString __stdcall operator+(TCHAR ch, const CString& string); #ifdef _UNICODE
friend CString __stdcall operator+(const CString& string, char ch); friend CString __stdcall operator+(char ch, const CString& string); #endif
friend CString __stdcall operator+(const CString& string, LPCTSTR lpsz); friend CString __stdcall operator+(LPCTSTR lpsz, const CString& string);
// string comparison
int Compare(LPCTSTR lpsz) const; // straight character
int CompareNoCase(LPCTSTR lpsz) const; // ignore case
int Collate(LPCTSTR lpsz) const; // NLS aware
// simple sub-string extraction
CString Mid(int nFirst, int nCount) const; CString Mid(int nFirst) const; CString Left(int nCount) const; CString Right(int nCount) const;
CString SpanIncluding(LPCTSTR lpszCharSet) const; CString SpanExcluding(LPCTSTR lpszCharSet) const;
// upper/lower/reverse conversion
void MakeUpper(); void MakeLower(); void MakeReverse();
// trimming whitespace (either side)
void TrimRight(); void TrimLeft();
// searching (return starting index, or -1 if not found)
// look for a single character match
int Find(TCHAR ch) const; // like "C" strchr
int ReverseFind(TCHAR ch) const; int FindOneOf(LPCTSTR lpszCharSet) const;
// look for a specific sub-string
int Find(LPCTSTR lpszSub) const; // like "C" strstr
// simple formatting
void __cdecl Format(LPCTSTR lpszFormat, ...); void __cdecl Format(UINT nFormatID, ...);
// formatting for localization (uses FormatMessage API)
BOOL __cdecl FormatMessage(LPCTSTR lpszFormat, ...); BOOL __cdecl FormatMessage(UINT nFormatID, ...);
// Windows support
BOOL LoadString(UINT nID); // load from string resource
// 255 chars max
#ifndef _UNICODE
// ANSI <-> OEM support (convert string in place)
void AnsiToOem(); void OemToAnsi(); #endif
#ifndef _ATL_NO_COM
// OLE BSTR support (use for OLE automation)
BSTR AllocSysString() const; BSTR SetSysString(BSTR* pbstr) const; #endif //!_ATL_NO_COM
// Access to string implementation buffer as "C" character array
LPTSTR GetBuffer(int nMinBufLength); void ReleaseBuffer(int nNewLength = -1); LPTSTR GetBufferSetLength(int nNewLength); void FreeExtra();
// Use LockBuffer/UnlockBuffer to turn refcounting off
LPTSTR LockBuffer(); void UnlockBuffer();
// Implementation
public: ~CString(); int GetAllocLength() const;
protected: LPTSTR m_pchData; // pointer to ref counted string data
// implementation helpers
CStringData* GetData() const; void Init(); void AllocCopy(CString& dest, int nCopyLen, int nCopyIndex, int nExtraLen) const; BOOL AllocBuffer(int nLen); void AssignCopy(int nSrcLen, LPCTSTR lpszSrcData); void ConcatCopy(int nSrc1Len, LPCTSTR lpszSrc1Data, int nSrc2Len, LPCTSTR lpszSrc2Data); void ConcatInPlace(int nSrcLen, LPCTSTR lpszSrcData); void FormatV(LPCTSTR lpszFormat, va_list argList); void CopyBeforeWrite(); BOOL AllocBeforeWrite(int nLen); void Release(); static void PASCAL Release(CStringData* pData); static int PASCAL SafeStrlen(LPCTSTR lpsz); };
// Compare helpers
bool __stdcall operator==(const CString& s1, const CString& s2); bool __stdcall operator==(const CString& s1, LPCTSTR s2); bool __stdcall operator==(LPCTSTR s1, const CString& s2); bool __stdcall operator!=(const CString& s1, const CString& s2); bool __stdcall operator!=(const CString& s1, LPCTSTR s2); bool __stdcall operator!=(LPCTSTR s1, const CString& s2); bool __stdcall operator<(const CString& s1, const CString& s2); bool __stdcall operator<(const CString& s1, LPCTSTR s2); bool __stdcall operator<(LPCTSTR s1, const CString& s2); bool __stdcall operator>(const CString& s1, const CString& s2); bool __stdcall operator>(const CString& s1, LPCTSTR s2); bool __stdcall operator>(LPCTSTR s1, const CString& s2); bool __stdcall operator<=(const CString& s1, const CString& s2); bool __stdcall operator<=(const CString& s1, LPCTSTR s2); bool __stdcall operator<=(LPCTSTR s1, const CString& s2); bool __stdcall operator>=(const CString& s1, const CString& s2); bool __stdcall operator>=(const CString& s1, LPCTSTR s2); bool __stdcall operator>=(LPCTSTR s1, const CString& s2);
// conversion helpers
int __cdecl _wcstombsz(char* mbstr, const wchar_t* wcstr, size_t count); int __cdecl _mbstowcsz(wchar_t* wcstr, const char* mbstr, size_t count);
// Globals
// afxChNil is left for backward compatibility
_declspec(selectany) TCHAR afxChNil = '\0';
// For an empty string, m_pchData will point here
// (note: avoids special case of checking for NULL m_pchData)
// empty string data (and locked)
_declspec(selectany) int rgInitData[] = { -1, 0, 0, 0 }; _declspec(selectany) CStringData* afxDataNil = (CStringData*)&rgInitData; _declspec(selectany) LPCTSTR afxPchNil = (LPCTSTR)(((BYTE*)&rgInitData)+sizeof(CStringData));
inline const CString& __stdcall AfxGetEmptyString() { return *(CString*)&afxPchNil; } #define afxEmptyString AfxGetEmptyString()
#endif //!_ATL_TMP_NO_CSTRING
/////////////////////////////////////////////////////////////////////////////
// Implementation
// CSize
inline CSize::CSize() { cx = 0; cy = 0; } inline CSize::CSize(int initCX, int initCY) { cx = initCX; cy = initCY; } inline CSize::CSize(SIZE initSize) { *(SIZE*)this = initSize; } inline CSize::CSize(POINT initPt) { *(POINT*)this = initPt; } inline CSize::CSize(DWORD dwSize) { cx = (short)LOWORD(dwSize); cy = (short)HIWORD(dwSize); } inline BOOL CSize::operator==(SIZE size) const { return (cx == size.cx && cy == size.cy); } inline BOOL CSize::operator!=(SIZE size) const { return (cx != size.cx || cy != size.cy); } inline void CSize::operator+=(SIZE size) { cx += size.cx; cy += size.cy; } inline void CSize::operator-=(SIZE size) { cx -= size.cx; cy -= size.cy; } inline CSize CSize::operator+(SIZE size) const { return CSize(cx + size.cx, cy + size.cy); } inline CSize CSize::operator-(SIZE size) const { return CSize(cx - size.cx, cy - size.cy); } inline CSize CSize::operator-() const { return CSize(-cx, -cy); } inline CPoint CSize::operator+(POINT point) const { return CPoint(cx + point.x, cy + point.y); } inline CPoint CSize::operator-(POINT point) const { return CPoint(cx - point.x, cy - point.y); } inline CRect CSize::operator+(const RECT* lpRect) const { return CRect(lpRect) + *this; } inline CRect CSize::operator-(const RECT* lpRect) const { return CRect(lpRect) - *this; }
// CPoint
inline CPoint::CPoint(int initX, int initY) { x = initX; y = initY; } inline CPoint::CPoint(POINT initPt) { *(POINT*)this = initPt; } inline CPoint::CPoint(SIZE initSize) { *(SIZE*)this = initSize; } inline CPoint::CPoint(DWORD dwPoint) { x = (short)LOWORD(dwPoint); y = (short)HIWORD(dwPoint); } inline void CPoint::Offset(int xOffset, int yOffset) { x += xOffset; y += yOffset; } inline void CPoint::Offset(POINT point) { x += point.x; y += point.y; } inline void CPoint::Offset(SIZE size) { x += size.cx; y += size.cy; } inline BOOL CPoint::operator==(POINT point) const { return (x == point.x && y == point.y); } inline BOOL CPoint::operator!=(POINT point) const { return (x != point.x || y != point.y); } inline void CPoint::operator+=(SIZE size) { x += size.cx; y += size.cy; } inline void CPoint::operator-=(SIZE size) { x -= size.cx; y -= size.cy; } inline void CPoint::operator+=(POINT point) { x += point.x; y += point.y; } inline void CPoint::operator-=(POINT point) { x -= point.x; y -= point.y; } inline CPoint CPoint::operator+(SIZE size) const { return CPoint(x + size.cx, y + size.cy); } inline CPoint CPoint::operator-(SIZE size) const { return CPoint(x - size.cx, y - size.cy); } inline CPoint CPoint::operator-() const { return CPoint(-x, -y); } inline CPoint CPoint::operator+(POINT point) const { return CPoint(x + point.x, y + point.y); } inline CSize CPoint::operator-(POINT point) const { return CSize(x - point.x, y - point.y); } inline CRect CPoint::operator+(const RECT* lpRect) const { return CRect(lpRect) + *this; } inline CRect CPoint::operator-(const RECT* lpRect) const { return CRect(lpRect) - *this; }
// CRect
inline CRect::CRect(int l, int t, int r, int b) { left = l; top = t; right = r; bottom = b; } inline CRect::CRect(const RECT& srcRect) { ::CopyRect(this, &srcRect); } inline CRect::CRect(LPCRECT lpSrcRect) { ::CopyRect(this, lpSrcRect); } inline CRect::CRect(POINT point, SIZE size) { right = (left = point.x) + size.cx; bottom = (top = point.y) + size.cy; } inline CRect::CRect(POINT topLeft, POINT bottomRight) { left = topLeft.x; top = topLeft.y; right = bottomRight.x; bottom = bottomRight.y; } inline int CRect::Width() const { return right - left; } inline int CRect::Height() const { return bottom - top; } inline CSize CRect::Size() const { return CSize(right - left, bottom - top); } inline CPoint& CRect::TopLeft() { return *((CPoint*)this); } inline CPoint& CRect::BottomRight() { return *((CPoint*)this+1); } inline const CPoint& CRect::TopLeft() const { return *((CPoint*)this); } inline const CPoint& CRect::BottomRight() const { return *((CPoint*)this+1); } inline CPoint CRect::CenterPoint() const { return CPoint((left+right)/2, (top+bottom)/2); } inline CRect::operator LPRECT() { return this; } inline CRect::operator LPCRECT() const { return this; } inline BOOL CRect::IsRectEmpty() const { return ::IsRectEmpty(this); } inline BOOL CRect::IsRectNull() const { return (left == 0 && right == 0 && top == 0 && bottom == 0); } inline BOOL CRect::PtInRect(POINT point) const { return ::PtInRect(this, point); } inline void CRect::SetRect(int x1, int y1, int x2, int y2) { ::SetRect(this, x1, y1, x2, y2); } inline void CRect::SetRect(POINT topLeft, POINT bottomRight) { ::SetRect(this, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y); } inline void CRect::SetRectEmpty() { ::SetRectEmpty(this); } inline void CRect::CopyRect(LPCRECT lpSrcRect) { ::CopyRect(this, lpSrcRect); } inline BOOL CRect::EqualRect(LPCRECT lpRect) const { return ::EqualRect(this, lpRect); } inline void CRect::InflateRect(int x, int y) { ::InflateRect(this, x, y); } inline void CRect::InflateRect(SIZE size) { ::InflateRect(this, size.cx, size.cy); } inline void CRect::DeflateRect(int x, int y) { ::InflateRect(this, -x, -y); } inline void CRect::DeflateRect(SIZE size) { ::InflateRect(this, -size.cx, -size.cy); } inline void CRect::OffsetRect(int x, int y) { ::OffsetRect(this, x, y); } inline void CRect::OffsetRect(POINT point) { ::OffsetRect(this, point.x, point.y); } inline void CRect::OffsetRect(SIZE size) { ::OffsetRect(this, size.cx, size.cy); } inline BOOL CRect::IntersectRect(LPCRECT lpRect1, LPCRECT lpRect2) { return ::IntersectRect(this, lpRect1, lpRect2);} inline BOOL CRect::IntersectRect(LPCRECT lpRect2) { return ::IntersectRect(this, this, lpRect2);} inline BOOL CRect::UnionRect(LPCRECT lpRect1, LPCRECT lpRect2) { return ::UnionRect(this, lpRect1, lpRect2); } inline void CRect::operator=(const RECT& srcRect) { ::CopyRect(this, &srcRect); } inline BOOL CRect::operator==(const RECT& rect) const { return ::EqualRect(this, &rect); } inline BOOL CRect::operator!=(const RECT& rect) const { return !::EqualRect(this, &rect); } inline void CRect::operator+=(POINT point) { ::OffsetRect(this, point.x, point.y); } inline void CRect::operator+=(SIZE size) { ::OffsetRect(this, size.cx, size.cy); } inline void CRect::operator+=(LPCRECT lpRect) { InflateRect(lpRect); } inline void CRect::operator-=(POINT point) { ::OffsetRect(this, -point.x, -point.y); } inline void CRect::operator-=(SIZE size) { ::OffsetRect(this, -size.cx, -size.cy); } inline void CRect::operator-=(LPCRECT lpRect) { DeflateRect(lpRect); } inline void CRect::operator&=(const RECT& rect) { ::IntersectRect(this, this, &rect); } inline void CRect::operator|=(const RECT& rect) { ::UnionRect(this, this, &rect); } inline CRect CRect::operator+(POINT pt) const { CRect rect(*this); ::OffsetRect(&rect, pt.x, pt.y); return rect; } inline CRect CRect::operator-(POINT pt) const { CRect rect(*this); ::OffsetRect(&rect, -pt.x, -pt.y); return rect; } inline CRect CRect::operator+(SIZE size) const { CRect rect(*this); ::OffsetRect(&rect, size.cx, size.cy); return rect; } inline CRect CRect::operator-(SIZE size) const { CRect rect(*this); ::OffsetRect(&rect, -size.cx, -size.cy); return rect; } inline CRect CRect::operator+(LPCRECT lpRect) const { CRect rect(this); rect.InflateRect(lpRect); return rect; } inline CRect CRect::operator-(LPCRECT lpRect) const { CRect rect(this); rect.DeflateRect(lpRect); return rect; } inline CRect CRect::operator&(const RECT& rect2) const { CRect rect; ::IntersectRect(&rect, this, &rect2); return rect; } inline CRect CRect::operator|(const RECT& rect2) const { CRect rect; ::UnionRect(&rect, this, &rect2); return rect; } inline BOOL CRect::SubtractRect(LPCRECT lpRectSrc1, LPCRECT lpRectSrc2) { return ::SubtractRect(this, lpRectSrc1, lpRectSrc2); }
inline void CRect::NormalizeRect() { int nTemp; if (left > right) { nTemp = left; left = right; right = nTemp; } if (top > bottom) { nTemp = top; top = bottom; bottom = nTemp; } }
inline void CRect::InflateRect(LPCRECT lpRect) { left -= lpRect->left; top -= lpRect->top; right += lpRect->right; bottom += lpRect->bottom; }
inline void CRect::InflateRect(int l, int t, int r, int b) { left -= l; top -= t; right += r; bottom += b; }
inline void CRect::DeflateRect(LPCRECT lpRect) { left += lpRect->left; top += lpRect->top; right -= lpRect->right; bottom -= lpRect->bottom; }
inline void CRect::DeflateRect(int l, int t, int r, int b) { left += l; top += t; right -= r; bottom -= b; }
inline CRect CRect::MulDiv(int nMultiplier, int nDivisor) const { return CRect( ::MulDiv(left, nMultiplier, nDivisor), ::MulDiv(top, nMultiplier, nDivisor), ::MulDiv(right, nMultiplier, nDivisor), ::MulDiv(bottom, nMultiplier, nDivisor)); }
#ifndef _ATL_TMP_NO_CSTRING
// CString
inline CStringData* CString::GetData() const { ATLASSERT(m_pchData != NULL); return ((CStringData*)m_pchData)-1; } inline void CString::Init() { m_pchData = afxEmptyString.m_pchData; } inline CString::CString(const unsigned char* lpsz) { Init(); *this = (LPCSTR)lpsz; } inline const CString& CString::operator=(const unsigned char* lpsz) { *this = (LPCSTR)lpsz; return *this; } #ifdef _UNICODE
inline const CString& CString::operator+=(char ch) { *this += (TCHAR)ch; return *this; } inline const CString& CString::operator=(char ch) { *this = (TCHAR)ch; return *this; } inline CString __stdcall operator+(const CString& string, char ch) { return string + (TCHAR)ch; } inline CString __stdcall operator+(char ch, const CString& string) { return (TCHAR)ch + string; } #endif
inline int CString::GetLength() const { return GetData()->nDataLength; } inline int CString::GetAllocLength() const { return GetData()->nAllocLength; } inline BOOL CString::IsEmpty() const { return GetData()->nDataLength == 0; } inline CString::operator LPCTSTR() const { return m_pchData; } inline int PASCAL CString::SafeStrlen(LPCTSTR lpsz) { return (lpsz == NULL) ? 0 : lstrlen(lpsz); }
// CString support (windows specific)
inline int CString::Compare(LPCTSTR lpsz) const { return _tcscmp(m_pchData, lpsz); } // MBCS/Unicode aware
inline int CString::CompareNoCase(LPCTSTR lpsz) const { return _tcsicmp(m_pchData, lpsz); } // MBCS/Unicode aware
// CString::Collate is often slower than Compare but is MBSC/Unicode
// aware as well as locale-sensitive with respect to sort order.
inline int CString::Collate(LPCTSTR lpsz) const { return _tcscoll(m_pchData, lpsz); } // locale sensitive
inline TCHAR CString::GetAt(int nIndex) const { ATLASSERT(nIndex >= 0); ATLASSERT(nIndex < GetData()->nDataLength); return m_pchData[nIndex]; } inline TCHAR CString::operator[](int nIndex) const { // same as GetAt
ATLASSERT(nIndex >= 0); ATLASSERT(nIndex < GetData()->nDataLength); return m_pchData[nIndex]; } inline bool __stdcall operator==(const CString& s1, const CString& s2) { return s1.Compare(s2) == 0; } inline bool __stdcall operator==(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) == 0; } inline bool __stdcall operator==(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) == 0; } inline bool __stdcall operator!=(const CString& s1, const CString& s2) { return s1.Compare(s2) != 0; } inline bool __stdcall operator!=(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) != 0; } inline bool __stdcall operator!=(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) != 0; } inline bool __stdcall operator<(const CString& s1, const CString& s2) { return s1.Compare(s2) < 0; } inline bool __stdcall operator<(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) < 0; } inline bool __stdcall operator<(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) > 0; } inline bool __stdcall operator>(const CString& s1, const CString& s2) { return s1.Compare(s2) > 0; } inline bool __stdcall operator>(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) > 0; } inline bool __stdcall operator>(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) < 0; } inline bool __stdcall operator<=(const CString& s1, const CString& s2) { return s1.Compare(s2) <= 0; } inline bool __stdcall operator<=(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) <= 0; } inline bool __stdcall operator<=(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) >= 0; } inline bool __stdcall operator>=(const CString& s1, const CString& s2) { return s1.Compare(s2) >= 0; } inline bool __stdcall operator>=(const CString& s1, LPCTSTR s2) { return s1.Compare(s2) >= 0; } inline bool __stdcall operator>=(LPCTSTR s1, const CString& s2) { return s2.Compare(s1) <= 0; }
inline BOOL __stdcall AfxIsValidString(LPCWSTR lpsz, int nLength) { if(lpsz == NULL) return FALSE; return !::IsBadStringPtrW(lpsz, nLength); }
inline BOOL __stdcall AfxIsValidString(LPCSTR lpsz, int nLength) { if(lpsz == NULL) return FALSE; return !::IsBadStringPtrA(lpsz, nLength); }
inline BOOL __stdcall AfxIsValidAddress(const void* lp, UINT nBytes, BOOL bReadWrite = TRUE) { // simple version using Win-32 APIs for pointer validation.
return (lp != NULL && !IsBadReadPtr(lp, nBytes) && (!bReadWrite || !IsBadWritePtr((LPVOID)lp, nBytes))); }
inline CString::CString() { Init(); }
inline CString::CString(const CString& stringSrc) { ATLASSERT(stringSrc.GetData()->nRefs != 0); if (stringSrc.GetData()->nRefs >= 0) { ATLASSERT(stringSrc.GetData() != afxDataNil); m_pchData = stringSrc.m_pchData; InterlockedIncrement(&GetData()->nRefs); } else { Init(); *this = stringSrc.m_pchData; } }
inline BOOL CString::AllocBuffer(int nLen) // always allocate one extra character for '\0' termination
// assumes [optimistically] that data length will equal allocation length
{ ATLASSERT(nLen >= 0); ATLASSERT(nLen <= INT_MAX-1); // max size (enough room for 1 extra)
if (nLen == 0) Init(); else { CStringData* pData = NULL; ATLTRY(pData = (CStringData*)new BYTE[sizeof(CStringData) + (nLen+1)*sizeof(TCHAR)]); if(pData == NULL) return FALSE;
pData->nRefs = 1; pData->data()[nLen] = '\0'; pData->nDataLength = nLen; pData->nAllocLength = nLen; m_pchData = pData->data(); }
return TRUE; }
inline void CString::Release() { if (GetData() != afxDataNil) { ATLASSERT(GetData()->nRefs != 0); if (InterlockedDecrement(&GetData()->nRefs) <= 0) delete[] (BYTE*)GetData(); Init(); } }
inline void PASCAL CString::Release(CStringData* pData) { if (pData != afxDataNil) { ATLASSERT(pData->nRefs != 0); if (InterlockedDecrement(&pData->nRefs) <= 0) delete[] (BYTE*)pData; } }
inline void CString::Empty() { if (GetData()->nDataLength == 0) return; if (GetData()->nRefs >= 0) Release(); else *this = &afxChNil; ATLASSERT(GetData()->nDataLength == 0); ATLASSERT(GetData()->nRefs < 0 || GetData()->nAllocLength == 0); }
inline void CString::CopyBeforeWrite() { if (GetData()->nRefs > 1) { CStringData* pData = GetData(); Release(); if(AllocBuffer(pData->nDataLength)) memcpy(m_pchData, pData->data(), (pData->nDataLength+1)*sizeof(TCHAR)); } ATLASSERT(GetData()->nRefs <= 1); }
inline BOOL CString::AllocBeforeWrite(int nLen) { BOOL bRet = TRUE; if (GetData()->nRefs > 1 || nLen > GetData()->nAllocLength) { Release(); bRet = AllocBuffer(nLen); } ATLASSERT(GetData()->nRefs <= 1); return bRet; }
inline CString::~CString() // free any attached data
{ if (GetData() != afxDataNil) { if (InterlockedDecrement(&GetData()->nRefs) <= 0) delete[] (BYTE*)GetData(); } }
inline void CString::AllocCopy(CString& dest, int nCopyLen, int nCopyIndex, int nExtraLen) const { // will clone the data attached to this string
// allocating 'nExtraLen' characters
// Places results in uninitialized string 'dest'
// Will copy the part or all of original data to start of new string
int nNewLen = nCopyLen + nExtraLen; if (nNewLen == 0) { dest.Init(); } else { if(dest.AllocBuffer(nNewLen)) memcpy(dest.m_pchData, m_pchData+nCopyIndex, nCopyLen*sizeof(TCHAR)); } }
inline CString::CString(LPCTSTR lpsz) { Init(); if (lpsz != NULL && HIWORD(lpsz) == NULL) { UINT nID = LOWORD((DWORD_PTR)lpsz); if (!LoadString(nID)) #if (_ATL_VER >= 0x0300)
ATLTRACE2(atlTraceGeneral, 0, _T("Warning: implicit LoadString(%u) in CString failed\n"), nID); #else
ATLTRACE2(atlTraceGeneral, 0, _T("Warning: implicit LoadString in CString failed\n")); #endif //(_ATL_VER >= 0x0300)
} else { int nLen = SafeStrlen(lpsz); if (nLen != 0) { if(AllocBuffer(nLen)) memcpy(m_pchData, lpsz, nLen*sizeof(TCHAR)); } } }
#ifdef _UNICODE
inline CString::CString(LPCSTR lpsz) { Init(); int nSrcLen = lpsz != NULL ? lstrlenA(lpsz) : 0; if (nSrcLen != 0) { if(AllocBuffer(nSrcLen)) { _mbstowcsz(m_pchData, lpsz, nSrcLen+1); ReleaseBuffer(); } } } #else //_UNICODE
inline CString::CString(LPCWSTR lpsz) { Init(); int nSrcLen = lpsz != NULL ? wcslen(lpsz) : 0; if (nSrcLen != 0) { if(AllocBuffer(nSrcLen*2)) { _wcstombsz(m_pchData, lpsz, (nSrcLen*2)+1); ReleaseBuffer(); } } } #endif //!_UNICODE
// Assignment operators
// All assign a new value to the string
// (a) first see if the buffer is big enough
// (b) if enough room, copy on top of old buffer, set size and type
// (c) otherwise free old string data, and create a new one
//
// All routines return the new string (but as a 'const CString&' so that
// assigning it again will cause a copy, eg: s1 = s2 = "hi there".
//
inline void CString::AssignCopy(int nSrcLen, LPCTSTR lpszSrcData) { if(AllocBeforeWrite(nSrcLen)) { memcpy(m_pchData, lpszSrcData, nSrcLen*sizeof(TCHAR)); GetData()->nDataLength = nSrcLen; m_pchData[nSrcLen] = '\0'; } }
inline const CString& CString::operator=(const CString& stringSrc) { if (m_pchData != stringSrc.m_pchData) { if ((GetData()->nRefs < 0 && GetData() != afxDataNil) || stringSrc.GetData()->nRefs < 0) { // actual copy necessary since one of the strings is locked
AssignCopy(stringSrc.GetData()->nDataLength, stringSrc.m_pchData); } else { // can just copy references around
Release(); ATLASSERT(stringSrc.GetData() != afxDataNil); m_pchData = stringSrc.m_pchData; InterlockedIncrement(&GetData()->nRefs); } } return *this; }
inline const CString& CString::operator=(LPCTSTR lpsz) { ATLASSERT(lpsz == NULL || AfxIsValidString(lpsz, FALSE)); AssignCopy(SafeStrlen(lpsz), lpsz); return *this; }
#ifdef _UNICODE
inline const CString& CString::operator=(LPCSTR lpsz) { int nSrcLen = lpsz != NULL ? lstrlenA(lpsz) : 0; if(AllocBeforeWrite(nSrcLen)) { _mbstowcsz(m_pchData, lpsz, nSrcLen+1); ReleaseBuffer(); } return *this; } #else //!_UNICODE
inline const CString& CString::operator=(LPCWSTR lpsz) { int nSrcLen = lpsz != NULL ? wcslen(lpsz) : 0; if(AllocBeforeWrite(nSrcLen*2)) { _wcstombsz(m_pchData, lpsz, (nSrcLen*2)+1); ReleaseBuffer(); } return *this; } #endif //!_UNICODE
// Concatenation
// NOTE: "operator+" is done as friend functions for simplicity
// There are three variants:
// CString + CString
// and for ? = TCHAR, LPCTSTR
// CString + ?
// ? + CString
inline void CString::ConcatCopy(int nSrc1Len, LPCTSTR lpszSrc1Data, int nSrc2Len, LPCTSTR lpszSrc2Data) { // -- master concatenation routine
// Concatenate two sources
// -- assume that 'this' is a new CString object
int nNewLen = nSrc1Len + nSrc2Len; if (nNewLen != 0) { if(AllocBuffer(nNewLen)) { memcpy(m_pchData, lpszSrc1Data, nSrc1Len*sizeof(TCHAR)); memcpy(m_pchData+nSrc1Len, lpszSrc2Data, nSrc2Len*sizeof(TCHAR)); } } }
inline CString __stdcall operator+(const CString& string1, const CString& string2) { CString s; s.ConcatCopy(string1.GetData()->nDataLength, string1.m_pchData, string2.GetData()->nDataLength, string2.m_pchData); return s; }
inline CString __stdcall operator+(const CString& string, LPCTSTR lpsz) { ATLASSERT(lpsz == NULL || AfxIsValidString(lpsz, FALSE)); CString s; s.ConcatCopy(string.GetData()->nDataLength, string.m_pchData, CString::SafeStrlen(lpsz), lpsz); return s; }
inline CString __stdcall operator+(LPCTSTR lpsz, const CString& string) { ATLASSERT(lpsz == NULL || AfxIsValidString(lpsz, FALSE)); CString s; s.ConcatCopy(CString::SafeStrlen(lpsz), lpsz, string.GetData()->nDataLength, string.m_pchData); return s; }
inline void CString::ConcatInPlace(int nSrcLen, LPCTSTR lpszSrcData) { // -- the main routine for += operators
// concatenating an empty string is a no-op!
if (nSrcLen == 0) return;
// if the buffer is too small, or we have a width mis-match, just
// allocate a new buffer (slow but sure)
if (GetData()->nRefs > 1 || GetData()->nDataLength + nSrcLen > GetData()->nAllocLength) { // we have to grow the buffer, use the ConcatCopy routine
CStringData* pOldData = GetData(); ConcatCopy(GetData()->nDataLength, m_pchData, nSrcLen, lpszSrcData); ATLASSERT(pOldData != NULL); CString::Release(pOldData); } else { // fast concatenation when buffer big enough
memcpy(m_pchData+GetData()->nDataLength, lpszSrcData, nSrcLen*sizeof(TCHAR)); GetData()->nDataLength += nSrcLen; ATLASSERT(GetData()->nDataLength <= GetData()->nAllocLength); m_pchData[GetData()->nDataLength] = '\0'; } }
inline const CString& CString::operator+=(LPCTSTR lpsz) { ATLASSERT(lpsz == NULL || AfxIsValidString(lpsz, FALSE)); ConcatInPlace(SafeStrlen(lpsz), lpsz); return *this; }
inline const CString& CString::operator+=(TCHAR ch) { ConcatInPlace(1, &ch); return *this; }
inline const CString& CString::operator+=(const CString& string) { ConcatInPlace(string.GetData()->nDataLength, string.m_pchData); return *this; }
inline LPTSTR CString::GetBuffer(int nMinBufLength) { ATLASSERT(nMinBufLength >= 0);
if (GetData()->nRefs > 1 || nMinBufLength > GetData()->nAllocLength) { // we have to grow the buffer
CStringData* pOldData = GetData(); int nOldLen = GetData()->nDataLength; // AllocBuffer will tromp it
if (nMinBufLength < nOldLen) nMinBufLength = nOldLen; if(AllocBuffer(nMinBufLength)) { memcpy(m_pchData, pOldData->data(), (nOldLen+1)*sizeof(TCHAR)); GetData()->nDataLength = nOldLen; CString::Release(pOldData); } } ATLASSERT(GetData()->nRefs <= 1);
// return a pointer to the character storage for this string
ATLASSERT(m_pchData != NULL); return m_pchData; }
inline void CString::ReleaseBuffer(int nNewLength) { CopyBeforeWrite(); // just in case GetBuffer was not called
if (nNewLength == -1) nNewLength = lstrlen(m_pchData); // zero terminated
ATLASSERT(nNewLength <= GetData()->nAllocLength); GetData()->nDataLength = nNewLength; m_pchData[nNewLength] = '\0'; }
inline LPTSTR CString::GetBufferSetLength(int nNewLength) { ATLASSERT(nNewLength >= 0);
GetBuffer(nNewLength); GetData()->nDataLength = nNewLength; m_pchData[nNewLength] = '\0'; return m_pchData; }
inline void CString::FreeExtra() { ATLASSERT(GetData()->nDataLength <= GetData()->nAllocLength); if (GetData()->nDataLength != GetData()->nAllocLength) { CStringData* pOldData = GetData(); if(AllocBuffer(GetData()->nDataLength)) { memcpy(m_pchData, pOldData->data(), pOldData->nDataLength*sizeof(TCHAR)); ATLASSERT(m_pchData[GetData()->nDataLength] == '\0'); CString::Release(pOldData); } } ATLASSERT(GetData() != NULL); }
inline LPTSTR CString::LockBuffer() { LPTSTR lpsz = GetBuffer(0); GetData()->nRefs = -1; return lpsz; }
inline void CString::UnlockBuffer() { ATLASSERT(GetData()->nRefs == -1); if (GetData() != afxDataNil) GetData()->nRefs = 1; }
inline int CString::Find(TCHAR ch) const { // find first single character
LPTSTR lpsz = _tcschr(m_pchData, (_TUCHAR)ch);
// return -1 if not found and index otherwise
return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData); }
inline int CString::FindOneOf(LPCTSTR lpszCharSet) const { ATLASSERT(AfxIsValidString(lpszCharSet, FALSE)); LPTSTR lpsz = _tcspbrk(m_pchData, lpszCharSet); return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData); }
inline void CString::MakeUpper() { CopyBeforeWrite(); _tcsupr(m_pchData); }
inline void CString::MakeLower() { CopyBeforeWrite(); _tcslwr(m_pchData); }
inline void CString::MakeReverse() { CopyBeforeWrite(); _tcsrev(m_pchData); }
inline void CString::SetAt(int nIndex, TCHAR ch) { ATLASSERT(nIndex >= 0); ATLASSERT(nIndex < GetData()->nDataLength);
CopyBeforeWrite(); m_pchData[nIndex] = ch; }
#ifndef _UNICODE
inline void CString::AnsiToOem() { CopyBeforeWrite(); ::AnsiToOem(m_pchData, m_pchData); } inline void CString::OemToAnsi() { CopyBeforeWrite(); ::OemToAnsi(m_pchData, m_pchData); } #endif
// CString conversion helpers (these use the current system locale)
inline int __cdecl _wcstombsz(char* mbstr, const wchar_t* wcstr, size_t count) { if (count == 0 && mbstr != NULL) return 0;
int result = ::WideCharToMultiByte(CP_ACP, 0, wcstr, -1, mbstr, count, NULL, NULL); ATLASSERT(mbstr == NULL || result <= (int)count); if (result > 0) mbstr[result-1] = 0; return result; }
inline int __cdecl _mbstowcsz(wchar_t* wcstr, const char* mbstr, size_t count) { if (count == 0 && wcstr != NULL) return 0;
int result = ::MultiByteToWideChar(CP_ACP, 0, mbstr, -1, wcstr, count); ATLASSERT(wcstr == NULL || result <= (int)count); if (result > 0) wcstr[result-1] = 0; return result; }
inline CString::CString(TCHAR ch, int nLength) { ATLASSERT(!_istlead(ch)); // can't create a lead byte string
Init(); if (nLength >= 1) { if(AllocBuffer(nLength)) { #ifdef _UNICODE
for (int i = 0; i < nLength; i++) m_pchData[i] = ch; #else
memset(m_pchData, ch, nLength); #endif
} } }
inline CString::CString(LPCTSTR lpch, int nLength) { Init(); if (nLength != 0) { ATLASSERT(AfxIsValidAddress(lpch, nLength, FALSE)); if(AllocBuffer(nLength)) memcpy(m_pchData, lpch, nLength*sizeof(TCHAR)); } }
inline const CString& CString::operator=(TCHAR ch) { ATLASSERT(!_istlead(ch)); // can't set single lead byte
AssignCopy(1, &ch); return *this; }
inline CString __stdcall operator+(const CString& string1, TCHAR ch) { CString s; s.ConcatCopy(string1.GetData()->nDataLength, string1.m_pchData, 1, &ch); return s; }
inline CString __stdcall operator+(TCHAR ch, const CString& string) { CString s; s.ConcatCopy(1, &ch, string.GetData()->nDataLength, string.m_pchData); return s; }
inline CString CString::Mid(int nFirst) const { return Mid(nFirst, GetData()->nDataLength - nFirst); }
inline CString CString::Mid(int nFirst, int nCount) const { // out-of-bounds requests return sensible things
if (nFirst < 0) nFirst = 0; if (nCount < 0) nCount = 0;
if (nFirst + nCount > GetData()->nDataLength) nCount = GetData()->nDataLength - nFirst; if (nFirst > GetData()->nDataLength) nCount = 0;
CString dest; AllocCopy(dest, nCount, nFirst, 0); return dest; }
inline CString CString::Right(int nCount) const { if (nCount < 0) nCount = 0; else if (nCount > GetData()->nDataLength) nCount = GetData()->nDataLength;
CString dest; AllocCopy(dest, nCount, GetData()->nDataLength-nCount, 0); return dest; }
inline CString CString::Left(int nCount) const { if (nCount < 0) nCount = 0; else if (nCount > GetData()->nDataLength) nCount = GetData()->nDataLength;
CString dest; AllocCopy(dest, nCount, 0, 0); return dest; }
// strspn equivalent
inline CString CString::SpanIncluding(LPCTSTR lpszCharSet) const { ATLASSERT(AfxIsValidString(lpszCharSet, FALSE)); return Left(_tcsspn(m_pchData, lpszCharSet)); }
// strcspn equivalent
inline CString CString::SpanExcluding(LPCTSTR lpszCharSet) const { ATLASSERT(AfxIsValidString(lpszCharSet, FALSE)); return Left(_tcscspn(m_pchData, lpszCharSet)); }
inline int CString::ReverseFind(TCHAR ch) const { // find last single character
LPTSTR lpsz = _tcsrchr(m_pchData, (_TUCHAR)ch);
// return -1 if not found, distance from beginning otherwise
return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData); }
// find a sub-string (like strstr)
inline int CString::Find(LPCTSTR lpszSub) const { ATLASSERT(AfxIsValidString(lpszSub, FALSE));
// find first matching substring
LPTSTR lpsz = _tcsstr(m_pchData, lpszSub);
// return -1 for not found, distance from beginning otherwise
return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData); }
#define TCHAR_ARG TCHAR
#define WCHAR_ARG WCHAR
#define CHAR_ARG char
struct _AFX_DOUBLE { BYTE doubleBits[sizeof(double)]; };
#if defined(_X86_)
#define DOUBLE_ARG _AFX_DOUBLE
#else
#define DOUBLE_ARG double
#endif
#define FORCE_ANSI 0x10000
#define FORCE_UNICODE 0x20000
inline void CString::FormatV(LPCTSTR lpszFormat, va_list argList) { ATLASSERT(AfxIsValidString(lpszFormat, FALSE));
va_list argListSave = argList;
// make a guess at the maximum length of the resulting string
int nMaxLen = 0; for (LPCTSTR lpsz = lpszFormat; *lpsz != '\0'; lpsz = _tcsinc(lpsz)) { // handle '%' character, but watch out for '%%'
if (*lpsz != '%' || *(lpsz = _tcsinc(lpsz)) == '%') { nMaxLen += _tclen(lpsz); continue; }
int nItemLen = 0;
// handle '%' character with format
int nWidth = 0; for (; *lpsz != '\0'; lpsz = _tcsinc(lpsz)) { // check for valid flags
if (*lpsz == '#') nMaxLen += 2; // for '0x'
else if (*lpsz == '*') nWidth = va_arg(argList, int); else if (*lpsz == '-' || *lpsz == '+' || *lpsz == '0' || *lpsz == ' ') ; else // hit non-flag character
break; } // get width and skip it
if (nWidth == 0) { // width indicated by
nWidth = _ttoi(lpsz); for (; *lpsz != '\0' && _istdigit(*lpsz); lpsz = _tcsinc(lpsz)) ; } ATLASSERT(nWidth >= 0);
int nPrecision = 0; if (*lpsz == '.') { // skip past '.' separator (width.precision)
lpsz = _tcsinc(lpsz);
// get precision and skip it
if (*lpsz == '*') { nPrecision = va_arg(argList, int); lpsz = _tcsinc(lpsz); } else { nPrecision = _ttoi(lpsz); for (; *lpsz != '\0' && _istdigit(*lpsz); lpsz = _tcsinc(lpsz)) ; } ATLASSERT(nPrecision >= 0); }
// should be on type modifier or specifier
int nModifier = 0; switch (*lpsz) { // modifiers that affect size
case 'h': nModifier = FORCE_ANSI; lpsz = _tcsinc(lpsz); break; case 'l': nModifier = FORCE_UNICODE; lpsz = _tcsinc(lpsz); break;
// modifiers that do not affect size
case 'F': case 'N': case 'L': lpsz = _tcsinc(lpsz); break; }
// now should be on specifier
switch (*lpsz | nModifier) { // single characters
case 'c': case 'C': nItemLen = 2; va_arg(argList, TCHAR_ARG); break; case 'c'|FORCE_ANSI: case 'C'|FORCE_ANSI: nItemLen = 2; va_arg(argList, CHAR_ARG); break; case 'c'|FORCE_UNICODE: case 'C'|FORCE_UNICODE: nItemLen = 2; va_arg(argList, WCHAR_ARG); break;
// strings
case 's': { LPCTSTR pstrNextArg = va_arg(argList, LPCTSTR); if (pstrNextArg == NULL) nItemLen = 6; // "(null)"
else { nItemLen = lstrlen(pstrNextArg); nItemLen = max(1, nItemLen); } break; }
case 'S': { #ifndef _UNICODE
LPWSTR pstrNextArg = va_arg(argList, LPWSTR); if (pstrNextArg == NULL) nItemLen = 6; // "(null)"
else { nItemLen = wcslen(pstrNextArg); nItemLen = max(1, nItemLen); } #else
LPCSTR pstrNextArg = va_arg(argList, LPCSTR); if (pstrNextArg == NULL) nItemLen = 6; // "(null)"
else { nItemLen = lstrlenA(pstrNextArg); nItemLen = max(1, nItemLen); } #endif
break; }
case 's'|FORCE_ANSI: case 'S'|FORCE_ANSI: { LPCSTR pstrNextArg = va_arg(argList, LPCSTR); if (pstrNextArg == NULL) nItemLen = 6; // "(null)"
else { nItemLen = lstrlenA(pstrNextArg); nItemLen = max(1, nItemLen); } break; }
case 's'|FORCE_UNICODE: case 'S'|FORCE_UNICODE: { LPWSTR pstrNextArg = va_arg(argList, LPWSTR); if (pstrNextArg == NULL) nItemLen = 6; // "(null)"
else { nItemLen = wcslen(pstrNextArg); nItemLen = max(1, nItemLen); } break; } }
// adjust nItemLen for strings
if (nItemLen != 0) { nItemLen = max(nItemLen, nWidth); if (nPrecision != 0) nItemLen = min(nItemLen, nPrecision); } else { switch (*lpsz) { // integers
case 'd': case 'i': case 'u': case 'x': case 'X': case 'o': va_arg(argList, int); nItemLen = 32; nItemLen = max(nItemLen, nWidth+nPrecision); break;
case 'e': case 'f': case 'g': case 'G': va_arg(argList, DOUBLE_ARG); nItemLen = 128; nItemLen = max(nItemLen, nWidth+nPrecision); break;
case 'p': va_arg(argList, void*); nItemLen = 32; nItemLen = max(nItemLen, nWidth+nPrecision); break;
// no output
case 'n': va_arg(argList, int*); break;
default: ATLASSERT(FALSE); // unknown formatting option
} }
// adjust nMaxLen for output nItemLen
nMaxLen += nItemLen; }
GetBuffer(nMaxLen); int nRet = _vstprintf(m_pchData, lpszFormat, argListSave); nRet; // ref
ATLASSERT(nRet <= GetAllocLength()); ReleaseBuffer();
va_end(argListSave); }
// formatting (using wsprintf style formatting)
inline void __cdecl CString::Format(LPCTSTR lpszFormat, ...) { ATLASSERT(AfxIsValidString(lpszFormat, FALSE));
va_list argList; va_start(argList, lpszFormat); FormatV(lpszFormat, argList); va_end(argList); }
inline void __cdecl CString::Format(UINT nFormatID, ...) { CString strFormat; BOOL bRet = strFormat.LoadString(nFormatID); bRet; // ref
ATLASSERT(bRet != 0);
va_list argList; va_start(argList, nFormatID); FormatV(strFormat, argList); va_end(argList); }
// formatting (using FormatMessage style formatting)
inline BOOL __cdecl CString::FormatMessage(LPCTSTR lpszFormat, ...) { // format message into temporary buffer lpszTemp
va_list argList; va_start(argList, lpszFormat); LPTSTR lpszTemp; BOOL bRet = TRUE;
if (::FormatMessage(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER, lpszFormat, 0, 0, (LPTSTR)&lpszTemp, 0, &argList) == 0 || lpszTemp == NULL) bRet = FALSE;
// assign lpszTemp into the resulting string and free the temporary
*this = lpszTemp; LocalFree(lpszTemp); va_end(argList); return bRet; }
inline BOOL __cdecl CString::FormatMessage(UINT nFormatID, ...) { // get format string from string table
CString strFormat; BOOL bRetTmp = strFormat.LoadString(nFormatID); bRetTmp; // ref
ATLASSERT(bRetTmp != 0);
// format message into temporary buffer lpszTemp
va_list argList; va_start(argList, nFormatID); LPTSTR lpszTemp; BOOL bRet = TRUE;
if (::FormatMessage(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER, strFormat, 0, 0, (LPTSTR)&lpszTemp, 0, &argList) == 0 || lpszTemp == NULL) bRet = FALSE;
// assign lpszTemp into the resulting string and free lpszTemp
*this = lpszTemp; LocalFree(lpszTemp); va_end(argList); return bRet; }
inline void CString::TrimRight() { CopyBeforeWrite();
// find beginning of trailing spaces by starting at beginning (DBCS aware)
LPTSTR lpsz = m_pchData; LPTSTR lpszLast = NULL; while (*lpsz != '\0') { if (_istspace(*lpsz)) { if (lpszLast == NULL) lpszLast = lpsz; } else lpszLast = NULL; lpsz = _tcsinc(lpsz); }
if (lpszLast != NULL) { // truncate at trailing space start
*lpszLast = '\0'; GetData()->nDataLength = (int)(DWORD_PTR)(lpszLast - m_pchData); } }
inline void CString::TrimLeft() { CopyBeforeWrite();
// find first non-space character
LPCTSTR lpsz = m_pchData; while (_istspace(*lpsz)) lpsz = _tcsinc(lpsz);
// fix up data and length
int nDataLength = GetData()->nDataLength - (int)(DWORD_PTR)(lpsz - m_pchData); memmove(m_pchData, lpsz, (nDataLength+1)*sizeof(TCHAR)); GetData()->nDataLength = nDataLength; }
#ifdef _UNICODE
#define CHAR_FUDGE 1 // one TCHAR unused is good enough
#else
#define CHAR_FUDGE 2 // two BYTES unused for case of DBC last char
#endif
inline BOOL CString::LoadString(UINT nID) { // try fixed buffer first (to avoid wasting space in the heap)
TCHAR szTemp[256]; int nCount = sizeof(szTemp) / sizeof(szTemp[0]); int nLen = AfxLoadString(nID, szTemp, nCount); if (nCount - nLen > CHAR_FUDGE) { *this = szTemp; return nLen > 0; }
// try buffer size of 512, then larger size until entire string is retrieved
int nSize = 256; do { nSize += 256; nLen = AfxLoadString(nID, GetBuffer(nSize-1), nSize); } while (nSize - nLen <= CHAR_FUDGE); ReleaseBuffer();
return nLen > 0; }
inline int __stdcall AfxLoadString(UINT nID, LPTSTR lpszBuf, UINT nMaxBuf) { ATLASSERT(AfxIsValidAddress(lpszBuf, nMaxBuf*sizeof(TCHAR))); #ifdef _DEBUG
// LoadString without annoying warning from the Debug kernel if the
// segment containing the string is not present
if (::FindResource(_Module.GetResourceInstance(), MAKEINTRESOURCE((nID>>4)+1), RT_STRING) == NULL) { lpszBuf[0] = '\0'; return 0; // not found
} #endif //_DEBUG
int nLen = ::LoadString(_Module.GetResourceInstance(), nID, lpszBuf, nMaxBuf); if (nLen == 0) lpszBuf[0] = '\0'; return nLen; }
#ifndef _ATL_NO_COM
inline BSTR CString::AllocSysString() const { #if defined(_UNICODE) || defined(OLE2ANSI)
BSTR bstr = ::SysAllocStringLen(m_pchData, GetData()->nDataLength); #else
int nLen = MultiByteToWideChar(CP_ACP, 0, m_pchData, GetData()->nDataLength, NULL, NULL); BSTR bstr = ::SysAllocStringLen(NULL, nLen); if(bstr != NULL) MultiByteToWideChar(CP_ACP, 0, m_pchData, GetData()->nDataLength, bstr, nLen); #endif
return bstr; }
inline BSTR CString::SetSysString(BSTR* pbstr) const { ATLASSERT(AfxIsValidAddress(pbstr, sizeof(BSTR)));
#if defined(_UNICODE) || defined(OLE2ANSI)
::SysReAllocStringLen(pbstr, m_pchData, GetData()->nDataLength); #else
int nLen = MultiByteToWideChar(CP_ACP, 0, m_pchData, GetData()->nDataLength, NULL, NULL); if(::SysReAllocStringLen(pbstr, NULL, nLen)) MultiByteToWideChar(CP_ACP, 0, m_pchData, GetData()->nDataLength, *pbstr, nLen); #endif
ATLASSERT(*pbstr != NULL); return *pbstr; } #endif //!_ATL_NO_COM
#endif //!_ATL_TMP_NO_CSTRING
}; //namespace ATL
#endif // __ATLTMP_H__
/////////////////////////////////////////////////////////////////////////////
|