diff options
Diffstat (limited to 'plugins/mTextControl/src/enumformat.cpp')
| -rw-r--r-- | plugins/mTextControl/src/enumformat.cpp | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/plugins/mTextControl/src/enumformat.cpp b/plugins/mTextControl/src/enumformat.cpp deleted file mode 100644 index 64ae07e3c3..0000000000 --- a/plugins/mTextControl/src/enumformat.cpp +++ /dev/null @@ -1,220 +0,0 @@ -//
-// ENUMFORMAT.CPP
-//
-// By J Brown 2004
-//
-// www.catch22.net
-//
-// Implementation of the IEnumFORMATETC interface
-//
-// For Win2K and above look at the SHCreateStdEnumFmtEtc API call!!
-//
-// Apparently the order of formats in an IEnumFORMATETC object must be
-// the same as those that were stored in the clipboard
-//
-//
-
-//#define STRICT
-
-#include "stdafx.h"
-
-class CEnumFormatEtc : public IEnumFORMATETC
-{
-public:
- //
- // IUnknown members
- //
- HRESULT __stdcall QueryInterface(REFIID iid, void ** ppvObject);
- ULONG __stdcall AddRef(void);
- ULONG __stdcall Release(void);
-
- //
- // IEnumFormatEtc members
- //
- HRESULT __stdcall Next(ULONG celt, FORMATETC * rgelt, ULONG * pceltFetched);
- HRESULT __stdcall Skip(ULONG celt);
- HRESULT __stdcall Reset(void);
- HRESULT __stdcall Clone(IEnumFORMATETC ** ppEnumFormatEtc);
-
- //
- // Construction / Destruction
- //
- CEnumFormatEtc(FORMATETC *pFormatEtc, int nNumFormats);
- ~CEnumFormatEtc();
-
-private:
-
- LONG m_lRefCount; // Reference count for this COM interface
- ULONG m_nIndex; // current enumerator index
- ULONG m_nNumFormats; // number of FORMATETC members
- FORMATETC * m_pFormatEtc; // array of FORMATETC objects
-};
-
-//
-// "Drop-in" replacement for SHCreateStdEnumFmtEtc. Called by CDataObject::EnumFormatEtc
-//
-HRESULT CreateEnumFormatEtc(UINT nNumFormats, FORMATETC *pFormatEtc, IEnumFORMATETC **ppEnumFormatEtc)
-{
- if (nNumFormats == 0 || pFormatEtc == nullptr || ppEnumFormatEtc == nullptr)
- return E_INVALIDARG;
-
- *ppEnumFormatEtc = new CEnumFormatEtc(pFormatEtc, nNumFormats);
-
- return (*ppEnumFormatEtc) ? S_OK : E_OUTOFMEMORY;
-}
-
-//
-// Helper function to perform a "deep" copy of a FORMATETC
-//
-static void DeepCopyFormatEtc(FORMATETC *dest, FORMATETC *source)
-{
- // copy the source FORMATETC into dest
- *dest = *source;
-
- if (source->ptd) {
- // allocate memory for the DVTARGETDEVICE if necessary
- dest->ptd = (DVTARGETDEVICE*)CoTaskMemAlloc(sizeof(DVTARGETDEVICE));
-
- // copy the contents of the source DVTARGETDEVICE into dest->ptd
- *(dest->ptd) = *(source->ptd);
- }
-}
-
-//
-// Constructor
-//
-CEnumFormatEtc::CEnumFormatEtc(FORMATETC *pFormatEtc, int nNumFormats)
-{
- m_lRefCount = 1;
- m_nIndex = 0;
- m_nNumFormats = nNumFormats;
- m_pFormatEtc = new FORMATETC[nNumFormats];
-
- // copy the FORMATETC structures
- for (int i = 0; i < nNumFormats; i++) {
- DeepCopyFormatEtc(&m_pFormatEtc[i], &pFormatEtc[i]);
- }
-}
-
-//
-// Destructor
-//
-CEnumFormatEtc::~CEnumFormatEtc()
-{
- if (m_pFormatEtc) {
- for (ULONG i = 0; i < m_nNumFormats; i++) {
- if (m_pFormatEtc[i].ptd)
- CoTaskMemFree(m_pFormatEtc[i].ptd);
- }
-
- delete[] m_pFormatEtc;
- }
-}
-
-//
-// IUnknown::AddRef
-//
-ULONG __stdcall CEnumFormatEtc::AddRef(void)
-{
- // increment object reference count
- return InterlockedIncrement(&m_lRefCount);
-}
-
-//
-// IUnknown::Release
-//
-ULONG __stdcall CEnumFormatEtc::Release(void)
-{
- // decrement object reference count
- LONG count = InterlockedDecrement(&m_lRefCount);
-
- if (count == 0) {
- delete this;
- return 0;
- }
- else {
- return count;
- }
-}
-
-//
-// IUnknown::QueryInterface
-//
-HRESULT __stdcall CEnumFormatEtc::QueryInterface(REFIID iid, void **ppvObject)
-{
- // check to see what interface has been requested
- if (iid == IID_IEnumFORMATETC || iid == IID_IUnknown) {
- AddRef();
- *ppvObject = this;
- return S_OK;
- }
- else {
- *ppvObject = nullptr;
- return E_NOINTERFACE;
- }
-}
-
-//
-// IEnumFORMATETC::Next
-//
-// If the returned FORMATETC structure contains a non-null "ptd" member, then
-// the caller must free this using CoTaskMemFree (stated in the COM documentation)
-//
-HRESULT __stdcall CEnumFormatEtc::Next(ULONG celt, FORMATETC *pFormatEtc, ULONG * pceltFetched)
-{
- ULONG copied = 0;
-
- // validate arguments
- if (celt == 0 || pFormatEtc == nullptr)
- return E_INVALIDARG;
-
- // copy FORMATETC structures into caller's buffer
- while (m_nIndex < m_nNumFormats && copied < celt) {
- DeepCopyFormatEtc(&pFormatEtc[copied], &m_pFormatEtc[m_nIndex]);
- copied++;
- m_nIndex++;
- }
-
- // store result
- if (pceltFetched != nullptr)
- *pceltFetched = copied;
-
- // did we copy all that was requested?
- return (copied == celt) ? S_OK : S_FALSE;
-}
-
-//
-// IEnumFORMATETC::Skip
-//
-HRESULT __stdcall CEnumFormatEtc::Skip(ULONG celt)
-{
- m_nIndex += celt;
- return (m_nIndex <= m_nNumFormats) ? S_OK : S_FALSE;
-}
-
-//
-// IEnumFORMATETC::Reset
-//
-HRESULT __stdcall CEnumFormatEtc::Reset(void)
-{
- m_nIndex = 0;
- return S_OK;
-}
-
-//
-// IEnumFORMATETC::Clone
-//
-HRESULT __stdcall CEnumFormatEtc::Clone(IEnumFORMATETC ** ppEnumFormatEtc)
-{
- HRESULT hResult;
-
- // make a duplicate enumerator
- hResult = CreateEnumFormatEtc(m_nNumFormats, m_pFormatEtc, ppEnumFormatEtc);
-
- if (hResult == S_OK) {
- // manually set the index state
- ((CEnumFormatEtc *)*ppEnumFormatEtc)->m_nIndex = m_nIndex;
- }
-
- return hResult;
-}
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