diff options
Diffstat (limited to 'libs/mTextControl/src/dataobject.cpp')
| -rw-r--r-- | libs/mTextControl/src/dataobject.cpp | 123 |
1 files changed, 70 insertions, 53 deletions
diff --git a/libs/mTextControl/src/dataobject.cpp b/libs/mTextControl/src/dataobject.cpp index cc05369021..121922f72f 100644 --- a/libs/mTextControl/src/dataobject.cpp +++ b/libs/mTextControl/src/dataobject.cpp @@ -11,57 +11,14 @@ //#define STRICT #include "stdafx.h" +#include "dataobject.h" const ULONG MAX_FORMATS = 100; HRESULT CreateEnumFormatEtc(UINT nNumFormats, FORMATETC *pFormatEtc, IEnumFORMATETC **ppEnumFormatEtc); -class CDataObject : public IDataObject -{ -public: - // - // IUnknown members - // - HRESULT __stdcall QueryInterface(REFIID iid, void ** ppvObject); - ULONG __stdcall AddRef(void); - ULONG __stdcall Release(void); - - // - // IDataObject members - // - HRESULT __stdcall GetData(FORMATETC *pFormatEtc, STGMEDIUM *pMedium); - HRESULT __stdcall GetDataHere(FORMATETC *pFormatEtc, STGMEDIUM *pMedium); - HRESULT __stdcall QueryGetData(FORMATETC *pFormatEtc); - HRESULT __stdcall GetCanonicalFormatEtc(FORMATETC *pFormatEct, FORMATETC *pFormatEtcOut); - HRESULT __stdcall SetData(FORMATETC *pFormatEtc, STGMEDIUM *pMedium, BOOL fRelease); - HRESULT __stdcall EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppEnumFormatEtc); - HRESULT __stdcall DAdvise(FORMATETC *pFormatEtc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection); - HRESULT __stdcall DUnadvise(DWORD dwConnection); - HRESULT __stdcall EnumDAdvise(IEnumSTATDATA **ppEnumAdvise); - - // - // Constructor / Destructor - // - CDataObject(const FORMATETC *fmt, const STGMEDIUM *stgmed, int count); - ~CDataObject(); - -private: - - int LookupFormatEtc(FORMATETC *pFormatEtc); - - // - // any private members and functions - // - LONG m_lRefCount; - - FORMATETC *m_pFormatEtc; - STGMEDIUM *m_pStgMedium; - LONG m_nNumFormats; - -}; - // -// Constructor +// Constructors // CDataObject::CDataObject(const FORMATETC *fmtetc, const STGMEDIUM *stgmed, int count) { @@ -77,18 +34,40 @@ CDataObject::CDataObject(const FORMATETC *fmtetc, const STGMEDIUM *stgmed, int c } } +CDataObject::CDataObject() +{ + m_lRefCount = 1; + m_nNumFormats = 0; + + m_pFormatEtc = nullptr; + m_pStgMedium = nullptr; +} + // // Destructor // CDataObject::~CDataObject() { - // cleanup - for (int i = 0; i < m_nNumFormats; i++) { - // ReleaseStgMedium(&m_pStgMedium[i]); - } + if (m_pFormatEtc) delete[] m_pFormatEtc; + if (m_pStgMedium) delete[] m_pStgMedium; +} + +// for use in child's +void CDataObject::UpdateData(const FORMATETC *fmtetc, const STGMEDIUM *stgmed, int count) +{ + m_lRefCount = 1; + m_nNumFormats = count; if (m_pFormatEtc) delete[] m_pFormatEtc; if (m_pStgMedium) delete[] m_pStgMedium; + + m_pFormatEtc = new FORMATETC[count]; + m_pStgMedium = new STGMEDIUM[count]; + + for (int i = 0; i < count; i++) { + m_pFormatEtc[i] = fmtetc[i]; + m_pStgMedium[i] = stgmed[i]; + } } // @@ -135,7 +114,7 @@ HRESULT __stdcall CDataObject::QueryInterface(REFIID iid, void **ppvObject) int CDataObject::LookupFormatEtc(FORMATETC *pFormatEtc) { for (int i = 0; i < m_nNumFormats; i++) { - if ((pFormatEtc->tymed & m_pFormatEtc[i].tymed) && + if ((pFormatEtc->tymed & m_pFormatEtc[i].tymed) && pFormatEtc->cfFormat == m_pFormatEtc[i].cfFormat && pFormatEtc->dwAspect == m_pFormatEtc[i].dwAspect) { return i; @@ -155,9 +134,8 @@ HRESULT __stdcall CDataObject::GetData(FORMATETC *pFormatEtc, STGMEDIUM *pMedium // // try to match the requested FORMATETC with one of our supported formats // - if ((idx = LookupFormatEtc(pFormatEtc)) == -1) { + if ((idx = LookupFormatEtc(pFormatEtc)) == -1) return DV_E_FORMATETC; - } // // found a match! transfer the data into the supplied storage-medium @@ -169,7 +147,6 @@ HRESULT __stdcall CDataObject::GetData(FORMATETC *pFormatEtc, STGMEDIUM *pMedium case TYMED_HGLOBAL: case TYMED_GDI: case TYMED_ENHMF: - // pMedium->hBitmap = (HBITMAP)OleDuplicateData(m_pStgMedium[idx].hBitmap, pFormatEtc->cfFormat, 0); pMedium->hBitmap = m_pStgMedium[idx].hBitmap; break; @@ -274,3 +251,43 @@ HRESULT CreateDataObject(const FORMATETC *fmtetc, const STGMEDIUM *stgmeds, UINT return (*ppDataObject) ? S_OK : E_OUTOFMEMORY; } + + +// CEMFObject + +// Constructor +CEMFObject::CEMFObject(HENHMETAFILE hEmf) +{ + static const FORMATETC lc_format[] = + { + { CF_ENHMETAFILE, nullptr, DVASPECT_CONTENT, -1, TYMED_ENHMF } + }; + + STGMEDIUM lc_stgmed[] = + { + { TYMED_ENHMF, { (HBITMAP)hEmf }, nullptr } + }; + + UpdateData(lc_format, lc_stgmed, 1); + + m_hEmf = hEmf; +} + +// Destructor +CEMFObject::~CEMFObject() +{ + DeleteEnhMetaFile(m_hEmf); +} + +// GetData +HRESULT __stdcall CEMFObject::GetData(FORMATETC *pFormatEtc, STGMEDIUM *pMedium) +{ + HRESULT hr; + hr = CDataObject::GetData(pFormatEtc, pMedium); + if (hr == S_OK) { + // we are responsible for releasing EMF object, not OLE client, so set pointer to IUnknown to us and Add a new reference + pMedium->pUnkForRelease = this; + AddRef(); + } + return hr; +} |