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strcoll.cpp
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C/C++ Source or Header
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1998-04-02
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6KB
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195 lines
// strcoll.cpp : implementation file
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1995 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.
#include "stdafx.h"
#include "inproc.h"
#include "strcoll.h"
#include "enumvar.h"
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CStringCollect
IMPLEMENT_DYNCREATE(CStringCollect, CCmdTarget)
CStringCollect::CStringCollect()
{
EnableAutomation();
// To keep the application running as long as an OLE automation
// object is active, the constructor calls AfxOleLockApp.
AfxOleLockApp();
}
CStringCollect::~CStringCollect()
{
// To terminate the application when all objects created with
// with OLE automation, the destructor calls AfxOleUnlockApp.
AfxOleUnlockApp();
}
void CStringCollect::OnFinalRelease()
{
// When the last reference for an automation object is released
// OnFinalRelease is called. This implementation deletes the
// object. Add additional cleanup required for your object before
// deleting it from memory.
delete this;
}
BEGIN_MESSAGE_MAP(CStringCollect, CCmdTarget)
//{{AFX_MSG_MAP(CStringCollect)
// NOTE - the ClassWizard will add and remove mapping macros here.
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// {BA0357C0-C377-11cd-9A90-00DD01113F12}
IMPLEMENT_OLECREATE(CStringCollect, "mfc.inproc.strcoll",
0xba0357c0, 0xc377, 0x11cd, 0x9a, 0x90, 0x0, 0xdd, 0x1, 0x11, 0x3f, 0x12);
BEGIN_DISPATCH_MAP(CStringCollect, CCmdTarget)
//{{AFX_DISPATCH_MAP(CStringCollect)
DISP_PROPERTY_EX(CStringCollect, "Count", GetCount, SetNotSupported, VT_I4)
DISP_FUNCTION(CStringCollect, "Add", Add, VT_I4, VTS_BSTR)
DISP_FUNCTION(CStringCollect, "Find", Find, VT_I4, VTS_BSTR)
DISP_FUNCTION(CStringCollect, "Remove", Remove, VT_I4, VTS_VARIANT)
DISP_FUNCTION(CStringCollect, "RemoveAll", RemoveAll, VT_EMPTY, VTS_NONE)
DISP_PROPERTY_PARAM(CStringCollect, "Item", GetItem, SetItem, VT_BSTR, VTS_I4)
//}}AFX_DISPATCH_MAP
DISP_PROPERTY_EX_ID(CStringCollect, "_NewEnum", DISPID_NEWENUM, GetNewEnum, SetNotSupported, VT_UNKNOWN)
DISP_DEFVALUE(CStringCollect, "Item")
END_DISPATCH_MAP()
// {0F098950-F9F0-11cd-8C3D-00AA004BB3B7}
static const IID IID_IStringCollect = { 0xf098950, 0xf9f0, 0x11cd,
{ 0x8c, 0x3d, 0x0, 0xaa, 0x0, 0x4b, 0xb3, 0xb7 } };
// Note: we add support for IID_IStringCollect to support typesafe binding
// from VBA. This IID must match the GUID that is attached to the
// dispinterface in the .ODL file.
BEGIN_INTERFACE_MAP(CStringCollect, CCmdTarget)
INTERFACE_PART(CStringCollect, IID_IStringCollect, Dispatch)
END_INTERFACE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CStringCollect message handlers
void CStringCollect::CheckIndex(long nIndex)
{
if (nIndex <= 0 || nIndex > m_strArray.GetSize())
AfxThrowOleException(E_INVALIDARG);
}
LPUNKNOWN CStringCollect::GetNewEnum()
{
CEnumVariant* pEnum = new CEnumVariant;
int nCount = m_strArray.GetSize();
VARIANT* pContents = new VARIANT[nCount];
int i;
TRY
{
for (i = 0; i < nCount; ++i)
{
VariantInit(&pContents[i]);
pContents[i].bstrVal = m_strArray.ElementAt(i).AllocSysString();
pContents[i].vt = VT_BSTR;
}
}
CATCH_ALL(e)
{
while (--i >= 0)
VariantClear(&pContents[i]);
THROW_LAST();
}
END_CATCH_ALL
pEnum->SetContents(pContents, nCount);
return pEnum->GetInterface(&IID_IUnknown);
}
long CStringCollect::GetCount()
{
return m_strArray.GetSize();
}
BSTR CStringCollect::GetItem(long nIndex)
{
CheckIndex(nIndex);
return m_strArray.ElementAt((int)nIndex-1).AllocSysString();
}
void CStringCollect::SetItem(long nIndex, LPCTSTR lpszNewValue)
{
CheckIndex(nIndex);
m_strArray.ElementAt((int)nIndex-1) = lpszNewValue;
}
long CStringCollect::Add(LPCTSTR newValue)
{
m_strArray.Add(newValue);
return m_strArray.GetSize();
}
long CStringCollect::Find(LPCTSTR findValue)
{
int nCount = m_strArray.GetSize();
for (int i = 0; i < nCount; ++i)
{
if (m_strArray.ElementAt(i) == findValue)
return i+1;
}
return -1;
}
long CStringCollect::Remove(const VARIANT FAR& removeValue)
{
int nIndex = -1;
VARIANT varTemp;
VariantInit(&varTemp);
const VARIANT* pvar = &removeValue;
if (removeValue.vt != VT_BSTR)
{
if (VariantChangeType(&varTemp, (VARIANT*)&removeValue, 0, VT_I4) == NOERROR)
pvar = &varTemp;
else if (VariantChangeType(&varTemp, (VARIANT*)&removeValue, 0, VT_BSTR) == NOERROR)
pvar = &varTemp;
else
AfxThrowOleException(DISP_E_TYPEMISMATCH);
}
if (pvar->vt == VT_BSTR)
nIndex = (int)Find(CString(pvar->bstrVal));
else if (pvar->vt == VT_I4)
nIndex = (int)pvar->lVal;
VariantClear(&varTemp);
CheckIndex(nIndex);
m_strArray.RemoveAt(nIndex);
return m_strArray.GetSize();
}
void CStringCollect::RemoveAll()
{
m_strArray.RemoveAll();
}