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Windows2003-3790/public/sdk/inc/wtl10/atlmisc.h
Microsoft 50969b0ea2 First commit
2020-09-30 16:53:55 +02:00

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// WTL Version 3.1
// Copyright (C) 1997-2000 Microsoft Corporation
// All rights reserved.
//
// This file is a part of Windows Template Library.
// The code and information is provided "as-is" without
// warranty of any kind, either expressed or implied.
#ifndef __ATLMISC_H__
#define __ATLMISC_H__
#pragma once
#ifndef __cplusplus
#error ATL requires C++ compilation (use a .cpp suffix)
#endif
#ifndef __ATLAPP_H__
#error atlmisc.h requires atlapp.h to be included first
#endif
#ifndef _WTL_NO_WTYPES
#define __ATLTYPES_H__
#endif //!_WTL_NO_WTYPES
#ifdef _ATL_TMP_NO_CSTRING
#define _WTL_NO_CSTRING
#endif
#ifndef _WTL_NO_CSTRING
#define __ATLSTR_H__
#if defined(_ATL_USE_CSTRING_FLOAT) && defined(_ATL_MIN_CRT)
#error Cannot use CString floating point formatting with _ATL_MIN_CRT defined
#endif //defined(_ATL_USE_CSTRING_FLOAT) && defined(_ATL_MIN_CRT)
#ifndef _DEBUG
#include <stdio.h>
#endif //!_DEBUG
#endif //!_WTL_NO_CSTRING
namespace WTL
{
/////////////////////////////////////////////////////////////////////////////
// Forward declarations
#ifndef _WTL_NO_WTYPES
class CSize;
class CPoint;
class CRect;
#endif //!_WTL_NO_WTYPES
#ifndef _WTL_NO_CSTRING
class CString;
#endif //!_WTL_NO_CSTRING
template <class T, int t_cchItemLen> class CRecentDocumentListBase;
class CRecentDocumentList;
class CFindFile;
/////////////////////////////////////////////////////////////////////////////
// CSize - Wrapper for Windows SIZE structure.
#ifndef _WTL_NO_WTYPES
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);
void SetSize(int CX, int 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 - Wrapper for Windows POINT structure.
class CPoint : public tagPOINT
{
public:
// Constructors
CPoint();
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);
void SetPoint(int X, int 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 - Wrapper for Windows RECT structure.
class CRect : public tagRECT
{
public:
// Constructors
CRect();
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();
// absolute position of rectangle
void MoveToY(int y);
void MoveToX(int x);
void MoveToXY(int x, int y);
void MoveToXY(POINT point);
// operations that fill '*this' with result
BOOL IntersectRect(LPCRECT lpRect1, LPCRECT lpRect2);
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;
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;
};
/////////////////////////////////////////////////////////////////////////////
// CSize, CPoint, CRect Implementation
// CSize
inline CSize::CSize()
{ /* random filled */ }
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 void CSize::SetSize(int CX, int CY)
{ cx = CX; cy = 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()
{ /* random filled */ }
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 void CPoint::SetPoint(int X, int Y)
{ x = X; y = 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()
{ /* random filled */ }
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::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::MoveToY(int y)
{ bottom = Height() + y; top = y; }
inline void CRect::MoveToX(int x)
{ right = Width() + x; left = x; }
inline void CRect::MoveToXY(int x, int y)
{ MoveToX(x); MoveToY(y); }
inline void CRect::MoveToXY(POINT pt)
{ MoveToX(pt.x); MoveToY(pt.y); }
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));
}
#endif //!_WTL_NO_WTYPES
/////////////////////////////////////////////////////////////////////////////
// CString - String class
#ifndef _WTL_NO_CSTRING
struct CStringData
{
long nRefs; // reference count
int nDataLength;
int nAllocLength;
// TCHAR data[nAllocLength]
TCHAR* data()
{ return (TCHAR*)(this + 1); }
};
// Globals
// 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* _atltmpDataNil = (CStringData*)&rgInitData;
_declspec(selectany) LPCTSTR _atltmpPchNil = (LPCTSTR)(((BYTE*)&rgInitData) + sizeof(CStringData));
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();
// advanced manipulation
// replace occurrences of chOld with chNew
int Replace(TCHAR chOld, TCHAR chNew);
// replace occurrences of substring lpszOld with lpszNew;
// empty lpszNew removes instances of lpszOld
int Replace(LPCTSTR lpszOld, LPCTSTR lpszNew);
// remove occurrences of chRemove
int Remove(TCHAR chRemove);
// insert character at zero-based index; concatenates
// if index is past end of string
int Insert(int nIndex, TCHAR ch);
// insert substring at zero-based index; concatenates
// if index is past end of string
int Insert(int nIndex, LPCTSTR pstr);
// delete nCount characters starting at zero-based index
int Delete(int nIndex, int nCount = 1);
// 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
// Concatentation for non strings
const CString& Append(int n)
{
TCHAR szBuffer[10];
wsprintf(szBuffer,_T("%d"),n);
ConcatInPlace(SafeStrlen(szBuffer), szBuffer);
return *this;
}
// 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;
static BOOL __stdcall _IsValidString(LPCWSTR lpsz, int nLength)
{
if(lpsz == NULL)
return FALSE;
return !::IsBadStringPtrW(lpsz, nLength);
}
static BOOL __stdcall _IsValidString(LPCSTR lpsz, int nLength)
{
if(lpsz == NULL)
return FALSE;
return !::IsBadStringPtrA(lpsz, nLength);
}
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);
BOOL 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);
static int __stdcall _LoadString(UINT nID, LPTSTR lpszBuf, UINT nMaxBuf)
{
#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;
}
static const CString& __stdcall _GetEmptyString()
{
return *(CString*)&_atltmpPchNil;
}
// CString conversion helpers
static 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, (int)count, NULL, NULL);
ATLASSERT(mbstr == NULL || result <= (int)count);
if (result > 0)
mbstr[result - 1] = 0;
return result;
}
static 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, (int)count);
ATLASSERT(wcstr == NULL || result <= (int)count);
if (result > 0)
wcstr[result - 1] = 0;
return result;
}
// Helpers to avoid CRT startup code
static TCHAR* _cstrchr(const TCHAR* p, TCHAR ch)
{
//strchr for '\0' should succeed
while (*p != 0)
{
if (*p == ch)
break;
p = ::CharNext(p);
}
return (TCHAR*)((*p == ch) ? p : NULL);
}
static TCHAR* _cstrchr_db(const TCHAR* p, TCHAR ch1, TCHAR ch2)
{
const TCHAR* lpsz = NULL;
while (*p != 0)
{
if (*p == ch1 && *(p + 1) == ch2)
{
lpsz = p;
break;
}
p = ::CharNext(p);
}
return (TCHAR*)lpsz;
}
static TCHAR* _cstrrchr(const TCHAR* p, TCHAR ch)
{
const TCHAR* lpsz = NULL;
while (*p != 0)
{
if (*p == ch)
lpsz = p;
p = ::CharNext(p);
}
return (TCHAR*)lpsz;
}
static TCHAR* _cstrrev(TCHAR* pStr)
{
// Optimize NULL, zero-length, and single-char case.
if ((pStr == NULL) || (pStr[0] == '\0') || (pStr[1] == '\0'))
return pStr;
TCHAR* p = pStr;
while (p[1] != 0)
{
TCHAR* pNext = ::CharNext(p);
if(pNext > p + 1)
{
char p1 = *(char*)p;
*(char*)p = *(char*)(p + 1);
*(char*)(p + 1) = p1;
}
p = pNext;
}
TCHAR* q = pStr;
while (q < p)
{
TCHAR t = *q;
*q = *p;
*p = t;
q++;
p--;
}
return (TCHAR*)pStr;
}
static TCHAR* _cstrstr(const TCHAR* pStr, const TCHAR* pCharSet)
{
int nLen = lstrlen(pCharSet);
if (nLen == 0)
return (TCHAR*)pStr;
const TCHAR* pRet = NULL;
const TCHAR* pCur = pStr;
while((pStr = _cstrchr(pCur, *pCharSet)) != NULL)
{
if(memcmp(pCur, pCharSet, nLen * sizeof(TCHAR)) == 0)
{
pRet = pCur;
break;
}
pCur = ::CharNext(pCur);
}
return (TCHAR*) pRet;
}
static int _cstrspn(const TCHAR* pStr, const TCHAR* pCharSet)
{
int nRet = 0;
TCHAR* p = (TCHAR*)pStr;
while (*p != 0)
{
TCHAR* pNext = ::CharNext(p);
if(pNext > p + 1)
{
if(_cstrchr_db(pCharSet, *p, *(p + 1)) == NULL)
break;
nRet += 2;
}
else
{
if(_cstrchr(pCharSet, *p) == NULL)
break;
nRet++;
}
p = pNext;
}
return nRet;
}
static int _cstrcspn(const TCHAR* pStr, const TCHAR* pCharSet)
{
int nRet = 0;
TCHAR* p = (TCHAR*)pStr;
while (*p != 0)
{
TCHAR* pNext = ::CharNext(p);
if(pNext > p + 1)
{
if(_cstrchr_db(pCharSet, *p, *(p + 1)) != NULL)
break;
nRet += 2;
}
else
{
if(_cstrchr(pCharSet, *p) != NULL)
break;
nRet++;
}
p = pNext;
}
return nRet;
}
static TCHAR* _cstrpbrk(const TCHAR* p, const TCHAR* lpszCharSet)
{
while (*p != 0)
{
if (_cstrchr(lpszCharSet, *p) != NULL)
{
return (TCHAR*)p;
break;
}
p = ::CharNext(p);
}
return NULL;
}
static int _cstrisdigit(TCHAR ch)
{
WORD type;
GetStringTypeEx(GetThreadLocale(), CT_CTYPE1, &ch, 1, &type);
return (type & C1_DIGIT) == C1_DIGIT;
}
static int _cstrisspace(TCHAR ch)
{
WORD type;
GetStringTypeEx(GetThreadLocale(), CT_CTYPE1, &ch, 1, &type);
return (type & C1_SPACE) == C1_SPACE;
}
static int _cstrcmp(const TCHAR* pstrOne, const TCHAR* pstrOther)
{
return lstrcmp(pstrOne, pstrOther);
}
static int _cstrcmpi(const TCHAR* pstrOne, const TCHAR* pstrOther)
{
return lstrcmpi(pstrOne, pstrOther);
}
static int _cstrcoll(const TCHAR* pstrOne, const TCHAR* pstrOther)
{
int nRet = CompareString(GetThreadLocale(), 0, pstrOne, -1, pstrOther, -1);
ATLASSERT(nRet != 0);
return nRet - 2; // Convert to strcmp convention. This really is documented.
}
static int _cstrcolli(const TCHAR* pstrOne, const TCHAR* pstrOther)
{
int nRet = CompareString(GetThreadLocale(), NORM_IGNORECASE, pstrOne, -1, pstrOther, -1);
ATLASSERT(nRet != 0);
return nRet - 2; // Convert to strcmp convention. This really is documented.
}
};
// 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);
/////////////////////////////////////////////////////////////////////////////
// CString Implementation
inline CStringData* CString::GetData() const
{ ATLASSERT(m_pchData != NULL); return ((CStringData*)m_pchData) - 1; }
inline void CString::Init()
{ m_pchData = _GetEmptyString().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 _cstrcmp(m_pchData, lpsz); } // MBCS/Unicode aware
inline int CString::CompareNoCase(LPCTSTR lpsz) const
{ return _cstrcmpi(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 _cstrcoll(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 CString::CString()
{
Init();
}
inline CString::CString(const CString& stringSrc)
{
ATLASSERT(stringSrc.GetData()->nRefs != 0);
if (stringSrc.GetData()->nRefs >= 0)
{
ATLASSERT(stringSrc.GetData() != _atltmpDataNil);
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() != _atltmpDataNil)
{
ATLASSERT(GetData()->nRefs != 0);
if (InterlockedDecrement(&GetData()->nRefs) <= 0)
delete[] (BYTE*)GetData();
Init();
}
}
inline void PASCAL CString::Release(CStringData* pData)
{
if (pData != _atltmpDataNil)
{
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 = _T("");
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() != _atltmpDataNil)
{
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))
ATLTRACE2(atlTraceUI, 0, _T("Warning: implicit LoadString(%u) in CString failed\n"), nID);
}
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() != _atltmpDataNil) || 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() != _atltmpDataNil);
m_pchData = stringSrc.m_pchData;
InterlockedIncrement(&GetData()->nRefs);
}
}
return *this;
}
inline const CString& CString::operator=(LPCTSTR lpsz)
{
ATLASSERT(lpsz == NULL || _IsValidString(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 BOOL CString::ConcatCopy(int nSrc1Len, LPCTSTR lpszSrc1Data,
int nSrc2Len, LPCTSTR lpszSrc2Data)
{
// -- master concatenation routine
// Concatenate two sources
// -- assume that 'this' is a new CString object
BOOL bRet = TRUE;
int nNewLen = nSrc1Len + nSrc2Len;
if (nNewLen != 0)
{
bRet = AllocBuffer(nNewLen);
if (bRet)
{
memcpy(m_pchData, lpszSrc1Data, nSrc1Len * sizeof(TCHAR));
memcpy(m_pchData + nSrc1Len, lpszSrc2Data, nSrc2Len * sizeof(TCHAR));
}
}
return bRet;
}
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 || CString::_IsValidString(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 || CString::_IsValidString(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();
if (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 || _IsValidString(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() != _atltmpDataNil)
GetData()->nRefs = 1;
}
inline int CString::Find(TCHAR ch) const
{
// find first single character
LPTSTR lpsz = _cstrchr(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(_IsValidString(lpszCharSet, FALSE));
LPTSTR lpsz = _cstrpbrk(m_pchData, lpszCharSet);
return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData);
}
inline void CString::MakeUpper()
{
CopyBeforeWrite();
CharUpper(m_pchData);
}
inline void CString::MakeLower()
{
CopyBeforeWrite();
CharLower(m_pchData);
}
inline void CString::MakeReverse()
{
CopyBeforeWrite();
_cstrrev(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
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)
{
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(_IsValidString(lpszCharSet, FALSE));
return Left(_cstrspn(m_pchData, lpszCharSet));
}
// strcspn equivalent
inline CString CString::SpanExcluding(LPCTSTR lpszCharSet) const
{
ATLASSERT(_IsValidString(lpszCharSet, FALSE));
return Left(_cstrcspn(m_pchData, lpszCharSet));
}
inline int CString::ReverseFind(TCHAR ch) const
{
// find last single character
LPTSTR lpsz = _cstrrchr(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(_IsValidString(lpszSub, FALSE));
// find first matching substring
LPTSTR lpsz = _cstrstr(m_pchData, lpszSub);
// return -1 for not found, distance from beginning otherwise
return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData);
}
inline void CString::FormatV(LPCTSTR lpszFormat, va_list argList)
{
ATLASSERT(_IsValidString(lpszFormat, FALSE));
enum _FormatModifiers
{
FORCE_ANSI = 0x10000,
FORCE_UNICODE = 0x20000,
FORCE_INT64 = 0x40000
};
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 = ::CharNext(lpsz))
{
// handle '%' character, but watch out for '%%'
if (*lpsz != '%' || *(lpsz = ::CharNext(lpsz)) == '%')
{
nMaxLen += (int)lstrlen(lpsz);
continue;
}
int nItemLen = 0;
// handle '%' character with format
int nWidth = 0;
for (; *lpsz != '\0'; lpsz = ::CharNext(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' && _cstrisdigit(*lpsz); lpsz = ::CharNext(lpsz))
;
}
ATLASSERT(nWidth >= 0);
int nPrecision = 0;
if (*lpsz == '.')
{
// skip past '.' separator (width.precision)
lpsz = ::CharNext(lpsz);
// get precision and skip it
if (*lpsz == '*')
{
nPrecision = va_arg(argList, int);
lpsz = ::CharNext(lpsz);
}
else
{
nPrecision = _ttoi(lpsz);
for (; *lpsz != '\0' && _cstrisdigit(*lpsz); lpsz = ::CharNext(lpsz))
;
}
ATLASSERT(nPrecision >= 0);
}
// should be on type modifier or specifier
int nModifier = 0;
if(lpsz[0] == _T('I') && lpsz[1] == _T('6') && lpsz[2] == _T('4'))
{
lpsz += 3;
nModifier = FORCE_INT64;
}
else
{
switch (*lpsz)
{
// modifiers that affect size
case 'h':
nModifier = FORCE_ANSI;
lpsz = ::CharNext(lpsz);
break;
case 'l':
nModifier = FORCE_UNICODE;
lpsz = ::CharNext(lpsz);
break;
// modifiers that do not affect size
case 'F':
case 'N':
case 'L':
lpsz = ::CharNext(lpsz);
break;
}
}
// now should be on specifier
switch (*lpsz | nModifier)
{
// single characters
case 'c':
case 'C':
nItemLen = 2;
va_arg(argList, TCHAR);
break;
case 'c' | FORCE_ANSI:
case 'C' | FORCE_ANSI:
nItemLen = 2;
va_arg(argList, char);
break;
case 'c' | FORCE_UNICODE:
case 'C' | FORCE_UNICODE:
nItemLen = 2;
va_arg(argList, WCHAR);
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 = (int)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 = (int)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':
if (nModifier & FORCE_INT64)
va_arg(argList, __int64);
else
va_arg(argList, int);
nItemLen = 32;
nItemLen = max(nItemLen, nWidth + nPrecision);
break;
#ifndef _ATL_USE_CSTRING_FLOAT
case 'e':
case 'f':
case 'g':
case 'G':
ATLASSERT(!"Floating point (%%e, %%f, %%g, and %%G) is not supported by the WTL::CString class.");
#ifndef _DEBUG
::OutputDebugString(_T("Floating point (%%e, %%f, %%g, and %%G) is not supported by the WTL::CString class."));
::DebugBreak();
#endif //!_DEBUG
break;
#else //_ATL_USE_CSTRING_FLOAT
case 'e':
case 'g':
case 'G':
va_arg(argList, double);
nItemLen = 128;
nItemLen = max(nItemLen, nWidth + nPrecision);
break;
case 'f':
{
double f;
LPTSTR pszTemp;
// 312 == strlen("-1+(309 zeroes).")
// 309 zeroes == max precision of a double
// 6 == adjustment in case precision is not specified,
// which means that the precision defaults to 6
pszTemp = (LPTSTR)_alloca(max(nWidth, 312 + nPrecision + 6));
f = va_arg(argList, double);
_stprintf(pszTemp, _T( "%*.*f" ), nWidth, nPrecision + 6, f);
nItemLen = _tcslen(pszTemp);
}
break;
#endif //_ATL_USE_CSTRING_FLOAT
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);
#ifndef _ATL_USE_CSTRING_FLOAT
int nRet = wvsprintf(m_pchData, lpszFormat, argListSave);
#else //_ATL_USE_CSTRING_FLOAT
int nRet = _vstprintf(m_pchData, lpszFormat, argListSave);
#endif //_ATL_USE_CSTRING_FLOAT
nRet; // ref
ATLASSERT(nRet <= GetAllocLength());
ReleaseBuffer();
va_end(argListSave);
}
// formatting (using wsprintf style formatting)
inline void __cdecl CString::Format(LPCTSTR lpszFormat, ...)
{
ATLASSERT(_IsValidString(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 (_cstrisspace(*lpsz))
{
if (lpszLast == NULL)
lpszLast = lpsz;
}
else
{
lpszLast = NULL;
}
lpsz = ::CharNext(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 (_cstrisspace(*lpsz))
lpsz = ::CharNext(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;
}
inline int CString::Delete(int nIndex, int nCount /* = 1 */)
{
if (nIndex < 0)
nIndex = 0;
int nNewLength = GetData()->nDataLength;
if (nCount > 0 && nIndex < nNewLength)
{
CopyBeforeWrite();
int nBytesToCopy = nNewLength - (nIndex + nCount) + 1;
memmove(m_pchData + nIndex, m_pchData + nIndex + nCount, nBytesToCopy * sizeof(TCHAR));
GetData()->nDataLength = nNewLength - nCount;
}
return nNewLength;
}
inline int CString::Insert(int nIndex, TCHAR ch)
{
CopyBeforeWrite();
if (nIndex < 0)
nIndex = 0;
int nNewLength = GetData()->nDataLength;
if (nIndex > nNewLength)
nIndex = nNewLength;
nNewLength++;
if (GetData()->nAllocLength < nNewLength)
{
CStringData* pOldData = GetData();
LPTSTR pstr = m_pchData;
if(!AllocBuffer(nNewLength))
return -1;
memcpy(m_pchData, pstr, (pOldData->nDataLength + 1) * sizeof(TCHAR));
CString::Release(pOldData);
}
// move existing bytes down
memmove(m_pchData + nIndex + 1, m_pchData + nIndex, (nNewLength - nIndex) * sizeof(TCHAR));
m_pchData[nIndex] = ch;
GetData()->nDataLength = nNewLength;
return nNewLength;
}
inline int CString::Insert(int nIndex, LPCTSTR pstr)
{
if (nIndex < 0)
nIndex = 0;
int nInsertLength = SafeStrlen(pstr);
int nNewLength = GetData()->nDataLength;
if (nInsertLength > 0)
{
CopyBeforeWrite();
if (nIndex > nNewLength)
nIndex = nNewLength;
nNewLength += nInsertLength;
if (GetData()->nAllocLength < nNewLength)
{
CStringData* pOldData = GetData();
LPTSTR pstr = m_pchData;
if(!AllocBuffer(nNewLength))
return -1;
memcpy(m_pchData, pstr, (pOldData->nDataLength + 1) * sizeof(TCHAR));
CString::Release(pOldData);
}
// move existing bytes down
memmove(m_pchData + nIndex + nInsertLength, m_pchData + nIndex, (nNewLength - nIndex - nInsertLength + 1) * sizeof(TCHAR));
memcpy(m_pchData + nIndex, pstr, nInsertLength * sizeof(TCHAR));
GetData()->nDataLength = nNewLength;
}
return nNewLength;
}
inline int CString::Replace(TCHAR chOld, TCHAR chNew)
{
int nCount = 0;
// short-circuit the nop case
if (chOld != chNew)
{
// otherwise modify each character that matches in the string
CopyBeforeWrite();
LPTSTR psz = m_pchData;
LPTSTR pszEnd = psz + GetData()->nDataLength;
while (psz < pszEnd)
{
// replace instances of the specified character only
if (*psz == chOld)
{
*psz = chNew;
nCount++;
}
psz = ::CharNext(psz);
}
}
return nCount;
}
inline int CString::Replace(LPCTSTR lpszOld, LPCTSTR lpszNew)
{
// can't have empty or NULL lpszOld
int nSourceLen = SafeStrlen(lpszOld);
if (nSourceLen == 0)
return 0;
int nReplacementLen = SafeStrlen(lpszNew);
// loop once to figure out the size of the result string
int nCount = 0;
LPTSTR lpszStart = m_pchData;
LPTSTR lpszEnd = m_pchData + GetData()->nDataLength;
LPTSTR lpszTarget;
while (lpszStart < lpszEnd)
{
while ((lpszTarget = _cstrstr(lpszStart, lpszOld)) != NULL)
{
nCount++;
lpszStart = lpszTarget + nSourceLen;
}
lpszStart += lstrlen(lpszStart) + 1;
}
// if any changes were made, make them
if (nCount > 0)
{
CopyBeforeWrite();
// if the buffer is too small, just
// allocate a new buffer (slow but sure)
int nOldLength = GetData()->nDataLength;
int nNewLength = nOldLength + (nReplacementLen - nSourceLen) * nCount;
if (GetData()->nAllocLength < nNewLength || GetData()->nRefs > 1)
{
CStringData* pOldData = GetData();
LPTSTR pstr = m_pchData;
if(!AllocBuffer(nNewLength))
return -1;
memcpy(m_pchData, pstr, pOldData->nDataLength * sizeof(TCHAR));
CString::Release(pOldData);
}
// else, we just do it in-place
lpszStart = m_pchData;
lpszEnd = m_pchData + GetData()->nDataLength;
// loop again to actually do the work
while (lpszStart < lpszEnd)
{
while ( (lpszTarget = _cstrstr(lpszStart, lpszOld)) != NULL)
{
int nBalance = nOldLength - ((int)(DWORD_PTR)(lpszTarget - m_pchData) + nSourceLen);
memmove(lpszTarget + nReplacementLen, lpszTarget + nSourceLen, nBalance * sizeof(TCHAR));
memcpy(lpszTarget, lpszNew, nReplacementLen * sizeof(TCHAR));
lpszStart = lpszTarget + nReplacementLen;
lpszStart[nBalance] = '\0';
nOldLength += (nReplacementLen - nSourceLen);
}
lpszStart += lstrlen(lpszStart) + 1;
}
ATLASSERT(m_pchData[nNewLength] == '\0');
GetData()->nDataLength = nNewLength;
}
return nCount;
}
inline int CString::Remove(TCHAR chRemove)
{
CopyBeforeWrite();
LPTSTR pstrSource = m_pchData;
LPTSTR pstrDest = m_pchData;
LPTSTR pstrEnd = m_pchData + GetData()->nDataLength;
while (pstrSource < pstrEnd)
{
if (*pstrSource != chRemove)
{
*pstrDest = *pstrSource;
pstrDest = ::CharNext(pstrDest);
}
pstrSource = ::CharNext(pstrSource);
}
*pstrDest = '\0';
int nCount = (int)(DWORD_PTR)(pstrSource - pstrDest);
GetData()->nDataLength -= nCount;
return nCount;
}
#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 = _LoadString(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 = _LoadString(nID, GetBuffer(nSize - 1), nSize);
} while (nSize - nLen <= CHAR_FUDGE);
ReleaseBuffer();
return nLen > 0;
}
#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
{
#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 //!_WTL_NO_CSTRING
/////////////////////////////////////////////////////////////////////////////
// CRecentDocumentList - MRU List Support
// forward declaration
inline bool AtlCompactPath(LPTSTR lpstrOut, LPCTSTR lpstrIn, int cchLen);
template <class T, int t_cchItemLen = MAX_PATH>
class CRecentDocumentListBase
{
public:
// Declarations
struct _DocEntry
{
TCHAR szDocName[t_cchItemLen];
bool operator==(const _DocEntry& de) const
{ return (lstrcmpi(szDocName, de.szDocName) == 0); }
};
enum
{
m_nMaxEntries_Min = 2,
m_nMaxEntries_Max = ID_FILE_MRU_LAST - ID_FILE_MRU_FIRST + 1,
m_cchMaxItemLen_Min = 6,
m_cchMaxItemLen_Max = t_cchItemLen
};
// Data members
CSimpleArray<_DocEntry> m_arrDocs;
int m_nMaxEntries; // default is 4
HMENU m_hMenu;
TCHAR m_szNoEntries[t_cchItemLen];
int m_cchMaxItemLen;
// Constructor
CRecentDocumentListBase() : m_hMenu(NULL), m_nMaxEntries(4), m_cchMaxItemLen(-1)
{
ATLASSERT(t_cchItemLen > m_cchMaxItemLen_Min);
}
// Attributes
HMENU GetMenuHandle() const
{
return m_hMenu;
}
void SetMenuHandle(HMENU hMenu)
{
ATLASSERT(hMenu == NULL || ::IsMenu(hMenu));
m_hMenu = hMenu;
if(m_hMenu == NULL || (::GetMenuString(m_hMenu, ID_FILE_MRU_FIRST, m_szNoEntries, t_cchItemLen, MF_BYCOMMAND) == 0))
lstrcpy(m_szNoEntries, _T("(empty)"));
}
int GetMaxEntries() const
{
return m_nMaxEntries;
}
void SetMaxEntries(int nMaxEntries)
{
ATLASSERT(nMaxEntries > m_nMaxEntries_Min && nMaxEntries < m_nMaxEntries_Max);
if(nMaxEntries < m_nMaxEntries_Min)
nMaxEntries = m_nMaxEntries_Min;
else if(nMaxEntries > m_nMaxEntries_Max)
nMaxEntries = m_nMaxEntries_Max;
m_nMaxEntries = nMaxEntries;
}
int GetMaxItemLength() const
{
return m_cchMaxItemLen;
}
void SetMaxItemLength(int cchMaxLen)
{
ATLASSERT((cchMaxLen >= m_cchMaxItemLen_Min && cchMaxLen <= m_cchMaxItemLen_Max) || cchMaxLen == -1);
if(cchMaxLen != -1)
{
if(cchMaxLen < m_cchMaxItemLen_Min)
cchMaxLen = m_cchMaxItemLen_Min;
else if(cchMaxLen > m_cchMaxItemLen_Max)
cchMaxLen = m_cchMaxItemLen_Max;
}
m_cchMaxItemLen = cchMaxLen;
T* pT = static_cast<T*>(this);
pT->UpdateMenu();
}
// Operations
BOOL AddToList(LPCTSTR lpstrDocName)
{
_DocEntry de;
if(lstrcpy(de.szDocName, lpstrDocName) == NULL)
return FALSE;
for(int i = 0; i < m_arrDocs.GetSize(); i++)
{
if(lstrcmpi(m_arrDocs[i].szDocName, lpstrDocName) == 0)
{
m_arrDocs.RemoveAt(i);
break;
}
}
if(m_arrDocs.GetSize() == m_nMaxEntries)
m_arrDocs.RemoveAt(0);
BOOL bRet = m_arrDocs.Add(de);
if(bRet)
{
T* pT = static_cast<T*>(this);
bRet = pT->UpdateMenu();
}
return bRet;
}
BOOL GetFromList(int nItemID, LPTSTR lpstrDocName)
{
int nIndex = m_arrDocs.GetSize() - (nItemID - ID_FILE_MRU_FIRST) - 1;
if(nIndex < 0 || nIndex >= m_arrDocs.GetSize())
return FALSE;
return (lstrcpy(lpstrDocName, m_arrDocs[nIndex].szDocName) != NULL);
}
BOOL RemoveFromList(int nItemID)
{
int nIndex = m_arrDocs.GetSize() - (nItemID - ID_FILE_MRU_FIRST) - 1;
BOOL bRet = m_arrDocs.RemoveAt(nIndex);
if(bRet)
{
T* pT = static_cast<T*>(this);
bRet = pT->UpdateMenu();
}
return bRet;
}
BOOL MoveToTop(int nItemID)
{
int nIndex = m_arrDocs.GetSize() - 1 - (nItemID - ID_FILE_MRU_FIRST);
if(nIndex < 0 || nIndex >= m_arrDocs.GetSize())
return FALSE;
_DocEntry de;
de = m_arrDocs[nIndex];
m_arrDocs.RemoveAt(nIndex);
BOOL bRet = m_arrDocs.Add(de);
if(bRet)
{
T* pT = static_cast<T*>(this);
bRet = pT->UpdateMenu();
}
return bRet;
}
BOOL ReadFromRegistry(LPCTSTR lpstrRegKey)
{
CRegKey rkParent;
CRegKey rk;
LONG lRet = rkParent.Open(HKEY_CURRENT_USER, lpstrRegKey);
if(lRet != ERROR_SUCCESS)
return FALSE;
lRet = rk.Open(rkParent, _T("Recent Document List"));
if(lRet != ERROR_SUCCESS)
return FALSE;
DWORD dwRet;
lRet = rk.QueryValue(dwRet, _T("DocumentCount"));
if(lRet == ERROR_SUCCESS || dwRet > 0 && dwRet < (ID_FILE_MRU_LAST - ID_FILE_MRU_FIRST + 1))
m_nMaxEntries = dwRet;
m_arrDocs.RemoveAll();
TCHAR szRetString[t_cchItemLen];
_DocEntry de;
for(int nItem = m_nMaxEntries; nItem > 0; nItem--)
{
TCHAR szBuff[11];
wsprintf(szBuff, _T("Document%i"), nItem);
DWORD dwCount = t_cchItemLen * sizeof(TCHAR);
lRet = rk.QueryValue(szRetString, szBuff, &dwCount);
if(lRet == ERROR_SUCCESS && (lstrcpy(de.szDocName, szRetString) != NULL))
m_arrDocs.Add(de);
}
rk.Close();
rkParent.Close();
T* pT = static_cast<T*>(this);
return pT->UpdateMenu();
}
BOOL WriteToRegistry(LPCTSTR lpstrRegKey)
{
CRegKey rkParent;
CRegKey rk;
LONG lRet = rkParent.Create(HKEY_CURRENT_USER, lpstrRegKey);
if(lRet != ERROR_SUCCESS)
return FALSE;
lRet = rk.Create(rkParent, _T("Recent Document List"));
if(lRet != ERROR_SUCCESS)
return FALSE;
lRet = rk.SetValue(m_nMaxEntries, _T("DocumentCount"));
ATLASSERT(lRet == ERROR_SUCCESS);
// set new values
int nItem;
for(nItem = m_arrDocs.GetSize(); nItem > 0; nItem--)
{
TCHAR szBuff[11];
wsprintf(szBuff, _T("Document%i"), nItem);
TCHAR szDocName[t_cchItemLen];
GetFromList(ID_FILE_MRU_FIRST + nItem - 1, szDocName);
lRet = rk.SetValue(szDocName, szBuff);
ATLASSERT(lRet == ERROR_SUCCESS);
}
// delete unused keys
for(nItem = m_arrDocs.GetSize() + 1; nItem < (ID_FILE_MRU_LAST - ID_FILE_MRU_FIRST + 1); nItem++)
{
TCHAR szBuff[11];
wsprintf(szBuff, _T("Document%i"), nItem);
rk.DeleteValue(szBuff);
}
rk.Close();
rkParent.Close();
return TRUE;
}
// Implementation
BOOL UpdateMenu()
{
if(m_hMenu == NULL)
return FALSE;
ATLASSERT(::IsMenu(m_hMenu));
int nItems = ::GetMenuItemCount(m_hMenu);
int nInsertPoint;
for(nInsertPoint = 0; nInsertPoint < nItems; nInsertPoint++)
{
MENUITEMINFO mi;
mi.cbSize = sizeof(MENUITEMINFO);
mi.fMask = MIIM_ID;
::GetMenuItemInfo(m_hMenu, nInsertPoint, TRUE, &mi);
if (mi.wID == ID_FILE_MRU_FIRST)
break;
}
ATLASSERT(nInsertPoint < nItems && "You need a menu item with an ID = ID_FILE_MRU_FIRST");
int nItem;
for(nItem = ID_FILE_MRU_FIRST; nItem < ID_FILE_MRU_FIRST + m_nMaxEntries; nItem++)
{
// keep the first one as an insertion point
if (nItem != ID_FILE_MRU_FIRST)
::DeleteMenu(m_hMenu, nItem, MF_BYCOMMAND);
}
TCHAR szItemText[t_cchItemLen + 6]; // add space for &, 2 digits, and a space
int nSize = m_arrDocs.GetSize();
nItem = 0;
if(nSize > 0)
{
for(nItem = 0; nItem < nSize; nItem++)
{
if(m_cchMaxItemLen == -1)
{
wsprintf(szItemText, _T("&%i %s"), nItem + 1, m_arrDocs[nSize - 1 - nItem].szDocName);
}
else
{
TCHAR szBuff[t_cchItemLen];
T* pT = static_cast<T*>(this);
pT; // avoid level 4 warning
bool bRet = pT->CompactDocumentName(szBuff, m_arrDocs[nSize - 1 - nItem].szDocName, m_cchMaxItemLen);
bRet; // avoid level 4 warning
ATLASSERT(bRet);
wsprintf(szItemText, _T("&%i %s"), nItem + 1, szBuff);
}
::InsertMenu(m_hMenu, nInsertPoint + nItem, MF_BYPOSITION | MF_STRING, ID_FILE_MRU_FIRST + nItem, szItemText);
}
}
else // empty
{
::InsertMenu(m_hMenu, nInsertPoint, MF_BYPOSITION | MF_STRING, ID_FILE_MRU_FIRST, m_szNoEntries);
::EnableMenuItem(m_hMenu, ID_FILE_MRU_FIRST, MF_GRAYED);
nItem++;
}
::DeleteMenu(m_hMenu, nInsertPoint + nItem, MF_BYPOSITION);
return TRUE;
}
// Overrideable
// override to provide a different method of compacting document names
static bool CompactDocumentName(LPTSTR lpstrOut, LPCTSTR lpstrIn, int cchLen)
{
return AtlCompactPath(lpstrOut, lpstrIn, cchLen);
}
};
class CRecentDocumentList : public CRecentDocumentListBase<CRecentDocumentList>
{
public:
// nothing here
};
/////////////////////////////////////////////////////////////////////////////
// CFindFile - file search helper class
class CFindFile
{
public:
// Data members
WIN32_FIND_DATA m_fd;
TCHAR m_lpszRoot[MAX_PATH];
TCHAR m_chDirSeparator;
HANDLE m_hFind;
BOOL m_bFound;
// Constructor/destructor
CFindFile() : m_hFind(NULL), m_chDirSeparator('\\'), m_bFound(FALSE)
{ }
~CFindFile()
{
Close();
}
// Attributes
ULONGLONG GetFileSize() const
{
ATLASSERT(m_hFind != NULL);
ULARGE_INTEGER nFileSize;
if(m_bFound)
{
nFileSize.LowPart = m_fd.nFileSizeLow;
nFileSize.HighPart = m_fd.nFileSizeHigh;
}
else
{
nFileSize.QuadPart = 0;
}
return nFileSize.QuadPart;
}
BOOL GetFileName(LPTSTR lpstrFileName, int cchLength) const
{
ATLASSERT(m_hFind != NULL);
if(lstrlen(m_fd.cFileName) >= cchLength)
return FALSE;
return (m_bFound && (lstrcpy(lpstrFileName, m_fd.cFileName) != NULL));
}
BOOL GetFilePath(LPTSTR lpstrFilePath, int cchLength) const
{
ATLASSERT(m_hFind != NULL);
int nLen = lstrlen(m_lpszRoot);
ATLASSERT(nLen > 0);
if(nLen == 0)
return FALSE;
bool bAddSep = (m_lpszRoot[nLen - 1] != '\\' && m_lpszRoot[nLen - 1] != '/');
if((lstrlen(m_lpszRoot) + (bAddSep ? 1 : 0)) >= cchLength)
return FALSE;
BOOL bRet = (lstrcpy(lpstrFilePath, m_lpszRoot) != NULL);
if(bRet)
{
TCHAR szSeparator[2] = { m_chDirSeparator, 0 };
bRet = (lstrcat(lpstrFilePath, szSeparator) != NULL);
}
return bRet;
}
BOOL GetFileTitle(LPTSTR lpstrFileTitle, int cchLength) const
{
ATLASSERT(m_hFind != NULL);
TCHAR szBuff[MAX_PATH];
if(!GetFileName(szBuff, MAX_PATH))
return FALSE;
TCHAR szNameBuff[_MAX_FNAME];
_tsplitpath(szBuff, NULL, NULL, szNameBuff, NULL);
if(lstrlen(szNameBuff) >= cchLength)
return FALSE;
return (lstrcpy(lpstrFileTitle, szNameBuff) != NULL);
}
BOOL GetFileURL(LPTSTR lpstrFileURL, int cchLength) const
{
ATLASSERT(m_hFind != NULL);
TCHAR szBuff[MAX_PATH];
if(!GetFilePath(szBuff, MAX_PATH))
return FALSE;
LPCTSTR lpstrFileURLPrefix = _T("file://");
if(lstrlen(szBuff) + lstrlen(lpstrFileURLPrefix) >= cchLength)
return FALSE;
if(lstrcpy(lpstrFileURL, lpstrFileURLPrefix) == NULL)
return FALSE;
return (lstrcat(lpstrFileURL, szBuff) != NULL);
}
BOOL GetRoot(LPTSTR lpstrRoot, int cchLength) const
{
ATLASSERT(m_hFind != NULL);
if(lstrlen(m_lpszRoot) >= cchLength)
return FALSE;
return (lstrcpy(lpstrRoot, m_lpszRoot) != NULL);
}
#ifndef _WTL_NO_CSTRING
CString GetFileName() const
{
ATLASSERT(m_hFind != NULL);
CString ret;
if(m_bFound)
ret = m_fd.cFileName;
return ret;
}
CString GetFilePath() const
{
ATLASSERT(m_hFind != NULL);
CString strResult = m_lpszRoot;
if(strResult[strResult.GetLength() - 1] != '\\' &&
strResult[strResult.GetLength() - 1] != '/')
strResult += m_chDirSeparator;
strResult += GetFileName();
return strResult;
}
CString GetFileTitle() const
{
ATLASSERT(m_hFind != NULL);
CString strFullName = GetFileName();
CString strResult;
_tsplitpath(strFullName, NULL, NULL, strResult.GetBuffer(MAX_PATH), NULL);
strResult.ReleaseBuffer();
return strResult;
}
CString GetFileURL() const
{
ATLASSERT(m_hFind != NULL);
CString strResult("file://");
strResult += GetFilePath();
return strResult;
}
CString GetRoot() const
{
ATLASSERT(m_hFind != NULL);
CString str = m_lpszRoot;
return str;
}
#endif //!_WTL_NO_CSTRING
BOOL GetLastWriteTime(FILETIME* pTimeStamp) const
{
ATLASSERT(m_hFind != NULL);
ATLASSERT(pTimeStamp != NULL);
if(m_bFound && pTimeStamp != NULL)
{
*pTimeStamp = m_fd.ftLastWriteTime;
return TRUE;
}
return FALSE;
}
BOOL GetLastAccessTime(FILETIME* pTimeStamp) const
{
ATLASSERT(m_hFind != NULL);
ATLASSERT(pTimeStamp != NULL);
if(m_bFound && pTimeStamp != NULL)
{
*pTimeStamp = m_fd.ftLastAccessTime;
return TRUE;
}
return FALSE;
}
BOOL GetCreationTime(FILETIME* pTimeStamp) const
{
ATLASSERT(m_hFind != NULL);
if(m_bFound && pTimeStamp != NULL)
{
*pTimeStamp = m_fd.ftCreationTime;
return TRUE;
}
return FALSE;
}
BOOL MatchesMask(DWORD dwMask) const
{
ATLASSERT(m_hFind != NULL);
if(m_bFound)
return ((m_fd.dwFileAttributes & dwMask) != 0);
return FALSE;
}
BOOL IsDots() const
{
ATLASSERT(m_hFind != NULL);
// return TRUE if the file name is "." or ".." and
// the file is a directory
BOOL bResult = FALSE;
if(m_bFound && IsDirectory())
{
if(m_fd.cFileName[0] == '.' && (m_fd.cFileName[1] == '\0' || (m_fd.cFileName[1] == '.' && m_fd.cFileName[2] == '\0')))
bResult = TRUE;
}
return bResult;
}
BOOL IsReadOnly() const
{
return MatchesMask(FILE_ATTRIBUTE_READONLY);
}
BOOL IsDirectory() const
{
return MatchesMask(FILE_ATTRIBUTE_DIRECTORY);
}
BOOL IsCompressed() const
{
return MatchesMask(FILE_ATTRIBUTE_COMPRESSED);
}
BOOL IsSystem() const
{
return MatchesMask(FILE_ATTRIBUTE_SYSTEM);
}
BOOL IsHidden() const
{
return MatchesMask(FILE_ATTRIBUTE_HIDDEN);
}
BOOL IsTemporary() const
{
return MatchesMask(FILE_ATTRIBUTE_TEMPORARY);
}
BOOL IsNormal() const
{
return MatchesMask(FILE_ATTRIBUTE_NORMAL);
}
BOOL IsArchived() const
{
return MatchesMask(FILE_ATTRIBUTE_ARCHIVE);
}
// Operations
BOOL FindFile(LPCTSTR pstrName = NULL)
{
Close();
if(pstrName == NULL)
pstrName = _T("*.*");
lstrcpy(m_fd.cFileName, pstrName);
m_hFind = ::FindFirstFile(pstrName, &m_fd);
if(m_hFind == INVALID_HANDLE_VALUE)
return FALSE;
LPCTSTR pstr = _tfullpath(m_lpszRoot, pstrName, MAX_PATH);
// passed name isn't a valid path but was found by the API
ATLASSERT(pstr != NULL);
if(pstr == NULL)
{
Close();
::SetLastError(ERROR_INVALID_NAME);
return FALSE;
}
else
{
// find the last forward or backward whack
LPTSTR pstrBack = _tcsrchr(m_lpszRoot, '\\');
LPTSTR pstrFront = _tcsrchr(m_lpszRoot, '/');
if(pstrFront != NULL || pstrBack != NULL)
{
if(pstrFront == NULL)
pstrFront = m_lpszRoot;
if(pstrBack == NULL)
pstrBack = m_lpszRoot;
// from the start to the last whack is the root
if(pstrFront >= pstrBack)
*pstrFront = '\0';
else
*pstrBack = '\0';
}
}
m_bFound = TRUE;
return TRUE;
}
BOOL FindNextFile()
{
ATLASSERT(m_hFind != NULL);
if(m_hFind == NULL)
return FALSE;
if(!m_bFound)
return FALSE;
m_bFound = ::FindNextFile(m_hFind, &m_fd);
return m_bFound;
}
void Close()
{
m_bFound = FALSE;
if(m_hFind != NULL && m_hFind != INVALID_HANDLE_VALUE)
{
::FindClose(m_hFind);
m_hFind = NULL;
}
}
};
/////////////////////////////////////////////////////////////////////////////
// Global functions for loading resources
inline HACCEL AtlLoadAccelerators(_U_STRINGorID table)
{
return ::LoadAccelerators(_Module.GetResourceInstance(), table.m_lpstr);
}
inline HMENU AtlLoadMenu(_U_STRINGorID menu)
{
return ::LoadMenu(_Module.GetResourceInstance(), menu.m_lpstr);
}
inline HBITMAP AtlLoadBitmap(_U_STRINGorID bitmap)
{
return ::LoadBitmap(_Module.GetResourceInstance(), bitmap.m_lpstr);
}
#ifdef OEMRESOURCE
inline HBITMAP AtlLoadSysBitmap(LPCTSTR lpBitmapName)
{
#ifdef _DEBUG
WORD wID = (WORD)lpBitmapName;
ATLASSERT(wID >= 32734 && wID <= 32767);
#endif //_DEBUG
return ::LoadBitmap(NULL, lpBitmapName);
}
#endif //OEMRESOURCE
inline HCURSOR AtlLoadCursor(_U_STRINGorID cursor)
{
return ::LoadCursor(_Module.GetResourceInstance(), cursor.m_lpstr);
}
inline HCURSOR AtlLoadSysCursor(LPCTSTR lpCursorName)
{
ATLASSERT(lpCursorName == IDC_ARROW || lpCursorName == IDC_IBEAM || lpCursorName == IDC_WAIT ||
lpCursorName == IDC_CROSS || lpCursorName == IDC_UPARROW || lpCursorName == IDC_SIZE ||
lpCursorName == IDC_ICON || lpCursorName == IDC_SIZENWSE || lpCursorName == IDC_SIZENESW ||
lpCursorName == IDC_SIZEWE || lpCursorName == IDC_SIZENS || lpCursorName == IDC_SIZEALL ||
lpCursorName == IDC_NO || lpCursorName == IDC_APPSTARTING || lpCursorName == IDC_HELP);
return ::LoadCursor(NULL, lpCursorName);
}
inline HICON AtlLoadIcon(_U_STRINGorID icon)
{
return ::LoadIcon(_Module.GetResourceInstance(), icon.m_lpstr);
}
inline HICON AtlLoadSysIcon(LPCTSTR lpIconName)
{
ATLASSERT(lpIconName == IDI_APPLICATION ||
lpIconName == IDI_ASTERISK ||
lpIconName == IDI_EXCLAMATION ||
lpIconName == IDI_HAND ||
lpIconName == IDI_QUESTION ||
lpIconName == IDI_WINLOGO);
return ::LoadIcon(NULL, lpIconName);
}
inline HBITMAP AtlLoadBitmapImage(_U_STRINGorID bitmap, UINT fuLoad = LR_DEFAULTCOLOR)
{
return (HBITMAP)::LoadImage(_Module.GetResourceInstance(), bitmap.m_lpstr, IMAGE_BITMAP, 0, 0, fuLoad);
}
inline HCURSOR AtlLoadCursorImage(_U_STRINGorID cursor, UINT fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, int cxDesired = 0, int cyDesired = 0)
{
return (HCURSOR)::LoadImage(_Module.GetResourceInstance(), cursor.m_lpstr, IMAGE_CURSOR, cxDesired, cyDesired, fuLoad);
}
inline HICON AtlLoadIconImage(_U_STRINGorID icon, UINT fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, int cxDesired = 0, int cyDesired = 0)
{
return (HICON)::LoadImage(_Module.GetResourceInstance(), icon.m_lpstr, IMAGE_ICON, cxDesired, cyDesired, fuLoad);
}
#ifdef OEMRESOURCE
inline HBITMAP AtlLoadSysBitmapImage(WORD wBitmapID, UINT fuLoad = LR_DEFAULTCOLOR)
{
ATLASSERT(wBitmapID >= 32734 && wBitmapID <= 32767);
ATLASSERT((fuLoad & LR_LOADFROMFILE) == 0); // this one doesn't load from a file
return (HBITMAP)::LoadImage(NULL, MAKEINTRESOURCE(wBitmapID), IMAGE_BITMAP, 0, 0, fuLoad);
}
#endif //OEMRESOURCE
inline HCURSOR AtlLoadSysCursorImage(_U_STRINGorID cursor, UINT fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, int cxDesired = 0, int cyDesired = 0)
{
#ifdef _DEBUG
WORD wID = (WORD)cursor.m_lpstr;
ATLASSERT((wID >= 32512 && wID <= 32516) || (wID >= 32640 && wID <= 32648) || (wID == 32650) || (wID == 32651));
ATLASSERT((fuLoad & LR_LOADFROMFILE) == 0); // this one doesn't load from a file
#endif //_DEBUG
return (HCURSOR)::LoadImage(NULL, cursor.m_lpstr, IMAGE_CURSOR, cxDesired, cyDesired, fuLoad);
}
inline HICON AtlLoadSysIconImage(_U_STRINGorID icon, UINT fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, int cxDesired = 0, int cyDesired = 0)
{
#ifdef _DEBUG
WORD wID = (WORD)icon.m_lpstr;
ATLASSERT(wID >= 32512 && wID <= 32517);
ATLASSERT((fuLoad & LR_LOADFROMFILE) == 0); // this one doesn't load from a file
#endif //_DEBUG
return (HICON)::LoadImage(NULL, icon.m_lpstr, IMAGE_ICON, cxDesired, cyDesired, fuLoad);
}
inline int AtlLoadString(UINT uID, LPTSTR lpBuffer, int nBufferMax)
{
return ::LoadString(_Module.GetResourceInstance(), uID, lpBuffer, nBufferMax);
}
inline bool AtlLoadString(UINT uID, BSTR& bstrText)
{
USES_CONVERSION;
ATLASSERT(bstrText == NULL);
LPTSTR lpstrText = NULL;
int nRes = 0;
for(int nLen = 256; ; nLen *= 2)
{
ATLTRY(lpstrText = new TCHAR[nLen]);
if(lpstrText == NULL)
break;
nRes = ::LoadString(_Module.GetResourceInstance(), uID, lpstrText, nLen);
if(nRes < nLen - 1)
break;
delete [] lpstrText;
lpstrText = NULL;
}
if(lpstrText != NULL)
{
if(nRes != 0)
bstrText = ::SysAllocString(T2OLE(lpstrText));
delete [] lpstrText;
}
return (bstrText != NULL) ? true : false;
}
/////////////////////////////////////////////////////////////////////////////
// Global functions for stock GDI objects
inline HPEN AtlGetStockPen(int nPen)
{
#if (_WIN32_WINNT >= 0x0500)
ATLASSERT(nPen == WHITE_PEN || nPen == BLACK_PEN || nPen == NULL_PEN || nPen == DC_PEN);
#else
ATLASSERT(nPen == WHITE_PEN || nPen == BLACK_PEN || nPen == NULL_PEN);
#endif //!(_WIN32_WINNT >= 0x0500)
return (HPEN)::GetStockObject(nPen);
}
inline HBRUSH AtlGetStockBrush(int nBrush)
{
#if (_WIN32_WINNT >= 0x0500)
ATLASSERT((nBrush >= WHITE_BRUSH && nBrush <= HOLLOW_BRUSH) || nBrush == DC_BRUSH);
#else
ATLASSERT(nBrush >= WHITE_BRUSH && nBrush <= HOLLOW_BRUSH);
#endif //!(_WIN32_WINNT >= 0x0500)
return (HBRUSH)::GetStockObject(nBrush);
}
inline HFONT AtlGetStockFont(int nFont)
{
ATLASSERT((nFont >= OEM_FIXED_FONT && nFont <= SYSTEM_FIXED_FONT) || nFont == DEFAULT_GUI_FONT);
return (HFONT)::GetStockObject(nFont);
}
inline HPALETTE AtlGetStockPalette(int nPalette)
{
ATLASSERT(nPalette == DEFAULT_PALETTE); // the only one supported
return (HPALETTE)::GetStockObject(nPalette);
}
/////////////////////////////////////////////////////////////////////////////
// Global function for compacting a path by replacing parts with ellipsis
// helper for multi-byte character sets
inline bool _IsDBCSTrailByte(LPCTSTR lpstr, int nChar)
{
#ifndef _UNICODE
for(int i = nChar; i > 0; i--)
{
if(!::IsDBCSLeadByte(lpstr[i - 1]))
break;
}
return ((nChar > 0) && (((nChar - i) & 1) != 0));
#else //_UNICODE
lpstr; nChar;
return false;
#endif //_UNICODE
}
inline bool AtlCompactPath(LPTSTR lpstrOut, LPCTSTR lpstrIn, int cchLen)
{
ATLASSERT(lpstrOut != NULL);
ATLASSERT(lpstrIn != NULL);
ATLASSERT(cchLen > 0);
LPCTSTR szEllipsis = _T("...");
const int cchEndEllipsis = 3;
const int cchMidEllipsis = 4;
if(lstrlen(lpstrIn) + 1 < cchLen)
return (lstrcpy(lpstrOut, lpstrIn) != NULL);
// check if the separator is a slash or a backslash
TCHAR chSlash = _T('\\');
for(LPTSTR lpstr = (LPTSTR)lpstrIn; *lpstr != 0; lpstr = ::CharNext(lpstr))
{
if((*lpstr == _T('/')) || (*lpstr == _T('\\')))
chSlash = *lpstr;
}
// find the filename portion of the path
LPCTSTR lpstrFileName = lpstrIn;
for(LPCTSTR pPath = lpstrIn; *pPath; pPath = ::CharNext(pPath))
{
if((pPath[0] == _T('\\') || pPath[0] == _T(':') || pPath[0] == _T('/'))
&& pPath[1] && pPath[1] != _T('\\') && pPath[1] != _T('/'))
lpstrFileName = pPath + 1;
}
int cchFileName = lstrlen(lpstrFileName);
// handle just the filename without a path
if(lpstrFileName == lpstrIn && cchLen > cchEndEllipsis)
{
bool bRet = (lstrcpyn(lpstrOut, lpstrIn, cchLen - cchEndEllipsis) != NULL);
if(bRet)
{
#ifndef _UNICODE
if(_IsDBCSTrailByte(lpstrIn, cchLen - cchEndEllipsis))
lpstrOut[cchLen - cchEndEllipsis - 1] = 0;
#endif //_UNICODE
bRet = (lstrcat(lpstrOut, szEllipsis) != NULL);
}
return bRet;
}
// handle just ellipsis
if((cchLen < (cchMidEllipsis + cchEndEllipsis)))
{
for(int i = 0; i < cchLen - 1; i++)
lpstrOut[i] = ((i + 1) == cchMidEllipsis) ? chSlash : _T('.');
lpstrOut[i] = 0;
return true;
}
// calc how much we have to copy
int cchToCopy = cchLen - (cchMidEllipsis + cchFileName);
if(cchToCopy < 0)
cchToCopy = 0;
#ifndef _UNICODE
if(cchToCopy > 0 && _IsDBCSTrailByte(lpstrIn, cchToCopy))
cchToCopy--;
#endif //_UNICODE
bool bRet = (lstrcpyn(lpstrOut, lpstrIn, cchToCopy) != NULL);
if(!bRet)
return false;
// add ellipsis
bRet = (lstrcat(lpstrOut, szEllipsis) != NULL);
if(!bRet)
return false;
TCHAR szSlash[2] = { chSlash, 0 };
bRet = (lstrcat(lpstrOut, szSlash) != NULL);
if(!bRet)
return false;
// add filename (and ellipsis, if needed)
if(cchLen > (cchMidEllipsis + cchFileName))
{
bRet = (lstrcat(lpstrOut, lpstrFileName) != NULL);
}
else
{
cchToCopy = cchLen - cchMidEllipsis - cchEndEllipsis;
#ifndef _UNICODE
if(cchToCopy > 0 && _IsDBCSTrailByte(lpstrFileName, cchToCopy))
cchToCopy--;
#endif //_UNICODE
bRet = (lstrcpyn(&lpstrOut[cchMidEllipsis], lpstrFileName, cchToCopy) != NULL);
if(bRet)
bRet = (lstrcat(lpstrOut, szEllipsis) != NULL);
}
return bRet;
}
}; //namespace WTL
#endif // __ATLMISC_H__
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