CLIPBRD.C
/*************************************************************************
**
** OLE 2 Sample Code
**
** clipbrd.c
**
** This file contains the major interfaces, methods and related support
** functions for implementing clipboard data transfer. The code
** contained in this file is used by BOTH the Container and Server
** (Object) versions of the Outline sample code.
** (see file dragdrop.c for Drag/Drop support implementation)
**
** OleDoc Object
** exposed interfaces:
** IDataObject
**
** (c) Copyright Microsoft Corp. 1992 - 1997 All Rights Reserved
**
*************************************************************************/
#include "outline.h"
OLEDBGDATA
extern LPOUTLINEAPP g_lpApp;
// REVIEW: should use string resource for messages
OLECHAR ErrMsgPasting[] = OLESTR("Could not paste data from clipboard!");
OLECHAR ErrMsgBadFmt[] = OLESTR("Invalid format selected!");
OLECHAR ErrMsgPasteFailed[] = OLESTR("Could not paste data from clipboard!");
OLECHAR ErrMsgClipboardChanged[] = OLESTR("Contents of clipboard have changed!\r\nNo paste performed.");
#ifdef WIN32S
#define GALLOCFLG (GMEM_SHARE | GMEM_ZEROINIT | GMEM_MOVEABLE)
#else
#define GALLOCFLG (GMEM_SHARE | GMEM_ZEROINIT)
#endif
/*************************************************************************
** OleDoc::IDataObject interface implementation
*************************************************************************/
// IDataObject::QueryInterface
STDMETHODIMP OleDoc_DataObj_QueryInterface (
LPDATAOBJECT lpThis,
REFIID riid,
LPVOID FAR* lplpvObj
)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
return OleDoc_QueryInterface((LPOLEDOC)lpOleDoc, riid, lplpvObj);
}
// IDataObject::AddRef
STDMETHODIMP_(ULONG) OleDoc_DataObj_AddRef(LPDATAOBJECT lpThis)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
OleDbgAddRefMethod(lpThis, "IDataObject");
return OleDoc_AddRef((LPOLEDOC)lpOleDoc);
}
// IDataObject::Release
STDMETHODIMP_(ULONG) OleDoc_DataObj_Release (LPDATAOBJECT lpThis)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
OleDbgReleaseMethod(lpThis, "IDataObject");
return OleDoc_Release((LPOLEDOC)lpOleDoc);
}
// IDataObject::GetData
STDMETHODIMP OleDoc_DataObj_GetData (
LPDATAOBJECT lpThis,
LPFORMATETC lpFormatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
HRESULT hrErr;
OLEDBG_BEGIN2("OleDoc_DataObj_GetData\r\n")
#if defined( OLE_SERVER )
// Call OLE Server specific version of this function
hrErr = ServerDoc_GetData((LPSERVERDOC)lpOleDoc, lpFormatetc, lpMedium);
#endif
#if defined( OLE_CNTR )
// Call OLE Container specific version of this function
hrErr = ContainerDoc_GetData(
(LPCONTAINERDOC)lpOleDoc,
lpFormatetc,
lpMedium
);
#endif
OLEDBG_END2
return hrErr;
}
// IDataObject::GetDataHere
STDMETHODIMP OleDoc_DataObj_GetDataHere (
LPDATAOBJECT lpThis,
LPFORMATETC lpFormatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
HRESULT hrErr;
OLEDBG_BEGIN2("OleDoc_DataObj_GetDataHere\r\n")
#if defined( OLE_SERVER )
// Call OLE Server specific version of this function
hrErr = ServerDoc_GetDataHere(
(LPSERVERDOC)lpOleDoc,
lpFormatetc,
lpMedium
);
#endif
#if defined( OLE_CNTR )
// Call OLE Container specific version of this function
hrErr = ContainerDoc_GetDataHere(
(LPCONTAINERDOC)lpOleDoc,
lpFormatetc,
lpMedium
);
#endif
OLEDBG_END2
return hrErr;
}
// IDataObject::QueryGetData
STDMETHODIMP OleDoc_DataObj_QueryGetData (
LPDATAOBJECT lpThis,
LPFORMATETC lpFormatetc
)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
HRESULT hrErr;
OLEDBG_BEGIN2("OleDoc_DataObj_QueryGetData\r\n");
#if defined( OLE_SERVER )
// Call OLE Server specific version of this function
hrErr = ServerDoc_QueryGetData((LPSERVERDOC)lpOleDoc, lpFormatetc);
#endif
#if defined( OLE_CNTR )
// Call OLE Container specific version of this function
hrErr = ContainerDoc_QueryGetData((LPCONTAINERDOC)lpOleDoc, lpFormatetc);
#endif
OLEDBG_END2
return hrErr;
}
// IDataObject::GetCanonicalFormatEtc
STDMETHODIMP OleDoc_DataObj_GetCanonicalFormatEtc(
LPDATAOBJECT lpThis,
LPFORMATETC lpformatetc,
LPFORMATETC lpformatetcOut
)
{
HRESULT hrErr;
OleDbgOut2("OleDoc_DataObj_GetCanonicalFormatEtc\r\n");
if (!lpformatetcOut)
return E_INVALIDARG;
/* NOTE: we must make sure to set all out parameters to NULL. */
lpformatetcOut->ptd = NULL;
if (!lpformatetc)
return E_INVALIDARG;
// NOTE: we must validate that the format requested is supported
if ((hrErr=lpThis->lpVtbl->QueryGetData(lpThis,lpformatetc)) != NOERROR)
return hrErr;
/* NOTE: an app that is insensitive to target device (as the
** Outline Sample is) should fill in the lpformatOut parameter
** but NULL out the "ptd" field; it should return NOERROR if the
** input formatetc->ptd what non-NULL. this tells the caller
** that it is NOT necessary to maintain a separate screen
** rendering and printer rendering. if should return
** DATA_S_SAMEFORMATETC if the input and output formatetc's are
** identical.
*/
*lpformatetcOut = *lpformatetc;
if (lpformatetc->ptd == NULL)
return DATA_S_SAMEFORMATETC;
else {
lpformatetcOut->ptd = NULL;
return NOERROR;
}
}
// IDataObject::SetData
STDMETHODIMP OleDoc_DataObj_SetData (
LPDATAOBJECT lpThis,
LPFORMATETC lpFormatetc,
LPSTGMEDIUM lpMedium,
BOOL fRelease
)
{
LPOLEDOC lpOleDoc = ((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
SCODE sc = S_OK;
OLEDBG_BEGIN2("OleDoc_DataObj_SetData\r\n")
/* NOTE: a document that is used to transfer data (either via
** the clipboard or drag/drop) does NOT accept SetData on ANY
** format!
*/
if (lpOutlineDoc->m_fDataTransferDoc) {
sc = E_FAIL;
goto error;
}
#if defined( OLE_SERVER )
if (lpFormatetc->cfFormat == lpOutlineApp->m_cfOutline) {
OLEDBG_BEGIN2("ServerDoc_SetData: CF_OUTLINE\r\n")
OutlineDoc_SetRedraw ( lpOutlineDoc, FALSE );
OutlineDoc_ClearAllLines(lpOutlineDoc);
OutlineDoc_PasteOutlineData(lpOutlineDoc,lpMedium->u.hGlobal,-1);
OutlineDoc_SetRedraw ( lpOutlineDoc, TRUE );
OLEDBG_END3
} else if (lpFormatetc->cfFormat == CF_TEXT) {
OLEDBG_BEGIN2("ServerDoc_SetData: CF_TEXT\r\n")
OutlineDoc_SetRedraw ( lpOutlineDoc, FALSE );
OutlineDoc_ClearAllLines(lpOutlineDoc);
OutlineDoc_PasteTextData(lpOutlineDoc,lpMedium->u.hGlobal,-1);
OutlineDoc_SetRedraw ( lpOutlineDoc, TRUE );
OLEDBG_END3
} else {
sc = DV_E_FORMATETC;
}
#endif // OLE_SERVER
#if defined( OLE_CNTR )
/* the Container-Only version of Outline does NOT offer
** IDataObject interface from its User documents. this is
** required by objects which can be embedded or linked. the
** Container-only app only allows linking to its contained
** objects, NOT the data of the container itself.
*/
OleDbgAssertSz(0, "User documents do NOT support IDataObject\r\n");
sc = E_NOTIMPL;
#endif // OLE_CNTR
error:
/* NOTE: if fRelease==TRUE, then we must take
** responsibility to release the lpMedium. we should only do
** this if we are going to return NOERROR. if we do NOT
** accept the data, then we should NOT release the lpMedium.
** if fRelease==FALSE, then the caller retains ownership of
** the data.
*/
if (sc == S_OK && fRelease)
ReleaseStgMedium(lpMedium);
OLEDBG_END2
return sc;
}
// IDataObject::EnumFormatEtc
STDMETHODIMP OleDoc_DataObj_EnumFormatEtc(
LPDATAOBJECT lpThis,
DWORD dwDirection,
LPENUMFORMATETC FAR* lplpenumFormatEtc
)
{
LPOLEDOC lpOleDoc=((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
HRESULT hrErr;
OLEDBG_BEGIN2("OleDoc_DataObj_EnumFormatEtc\r\n")
/* NOTE: we must make sure to set all out parameters to NULL. */
*lplpenumFormatEtc = NULL;
#if defined( OLE_SERVER )
/* NOTE: a user document only needs to enumerate the static list
** of formats that are registered for our app in the
** registration database. OLE provides a default enumerator
** which enumerates from the registration database. this default
** enumerator is requested by returning OLE_S_USEREG. it is NOT
** required that a user document (ie. non-DataTransferDoc)
** enumerate the OLE formats: CF_LINKSOURCE, CF_EMBEDSOURCE, or
** CF_EMBEDDEDOBJECT.
**
** An object implemented as a server EXE (as this sample
** is) may simply return OLE_S_USEREG to instruct the OLE
** DefHandler to call the OleReg* helper API which uses info in
** the registration database. Alternatively, the OleRegEnumFormatEtc
** API may be called directly. Objects implemented as a server
** DLL may NOT return OLE_S_USEREG; they must call the OleReg*
** API or provide their own implementation. For EXE based
** objects it is more efficient to return OLE_S_USEREG, because
** in then the enumerator is instantiated in the callers
** process space and no LRPC remoting is required.
*/
if (! ((LPOUTLINEDOC)lpOleDoc)->m_fDataTransferDoc)
return OLE_S_USEREG;
// Call OLE Server specific version of this function
hrErr = ServerDoc_EnumFormatEtc(
(LPSERVERDOC)lpOleDoc,
dwDirection,
lplpenumFormatEtc
);
#endif
#if defined( OLE_CNTR )
// Call OLE Container specific version of this function
hrErr = ContainerDoc_EnumFormatEtc(
(LPCONTAINERDOC)lpOleDoc,
dwDirection,
lplpenumFormatEtc
);
#endif
OLEDBG_END2
return hrErr;
}
// IDataObject::DAdvise
STDMETHODIMP OleDoc_DataObj_DAdvise(
LPDATAOBJECT lpThis,
FORMATETC FAR* lpFormatetc,
DWORD advf,
LPADVISESINK lpAdvSink,
DWORD FAR* lpdwConnection
)
{
LPOLEDOC lpOleDoc=((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
SCODE sc;
OLEDBG_BEGIN2("OleDoc_DataObj_DAdvise\r\n")
/* NOTE: we must make sure to set all out parameters to NULL. */
*lpdwConnection = 0;
/* NOTE: a document that is used to transfer data (either via
** the clipboard or drag/drop) does NOT support Advise notifications.
*/
if (lpOutlineDoc->m_fDataTransferDoc) {
sc = OLE_E_ADVISENOTSUPPORTED;
goto error;
}
#if defined( OLE_SERVER )
{
HRESULT hrErr;
LPSERVERDOC lpServerDoc = (LPSERVERDOC)lpOleDoc;
/* NOTE: we should validate if the caller is setting up an
** Advise for a data type that we support. we must
** explicitly allow an advise for the "wildcard" advise.
*/
#ifdef WIN32
if ( !( lpFormatetc->cfFormat == 0 &&
lpFormatetc->ptd == 0 &&
#else
if ( !( lpFormatetc->cfFormat == NULL &&
lpFormatetc->ptd == NULL &&
#endif
lpFormatetc->dwAspect == -1L &&
lpFormatetc->lindex == -1L &&
lpFormatetc->tymed == -1L) &&
(hrErr = OleDoc_DataObj_QueryGetData(lpThis, lpFormatetc))
!= NOERROR) {
sc = hrErr;
goto error;
}
if (lpServerDoc->m_OleDoc.m_fObjIsClosing)
{
// We don't accept any more Advies's once we're closing
sc = OLE_E_ADVISENOTSUPPORTED;
goto error;
}
if (lpServerDoc->m_lpDataAdviseHldr == NULL &&
CreateDataAdviseHolder(&lpServerDoc->m_lpDataAdviseHldr)
!= NOERROR) {
sc = E_OUTOFMEMORY;
goto error;
}
// artificial AddRef in case someone releases this object
// during the next call
OleDoc_DataObj_AddRef(lpThis);
OLEDBG_BEGIN2("IDataAdviseHolder::Advise called\r\n");
hrErr = lpServerDoc->m_lpDataAdviseHldr->lpVtbl->Advise(
lpServerDoc->m_lpDataAdviseHldr,
(LPDATAOBJECT)&lpOleDoc->m_DataObject,
lpFormatetc,
advf,
lpAdvSink,
lpdwConnection
);
OLEDBG_END2
// release artificial AddRef above
OleDoc_DataObj_Release(lpThis);
OLEDBG_END2
return hrErr;
}
#endif // OLE_SVR
#if defined( OLE_CNTR )
{
/* the Container-Only version of Outline does NOT offer
** IDataObject interface from its User documents. this is
** required by objects which can be embedded or linked. the
** Container-only app only allows linking to its contained
** objects, NOT the data of the container itself.
*/
OleDbgAssertSz(0, "User documents do NOT support IDataObject\r\n");
sc = E_NOTIMPL;
goto error;
}
#endif // OLE_CNTR
error:
OLEDBG_END2
return sc;
}
// IDataObject::DUnadvise
STDMETHODIMP OleDoc_DataObj_DUnadvise(LPDATAOBJECT lpThis, DWORD dwConnection)
{
LPOLEDOC lpOleDoc=((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
SCODE sc;
OLEDBG_BEGIN2("OleDoc_DataObj_DUnadvise\r\n")
/* NOTE: a document that is used to transfer data (either via
** the clipboard or drag/drop) does NOT support Advise notifications.
*/
if (lpOutlineDoc->m_fDataTransferDoc) {
sc = OLE_E_ADVISENOTSUPPORTED;
goto error;
}
#if defined( OLE_SERVER )
{
LPSERVERDOC lpServerDoc = (LPSERVERDOC)lpOleDoc;
HRESULT hrErr;
if (lpServerDoc->m_lpDataAdviseHldr == NULL) {
sc = E_FAIL;
goto error;
}
// artificial AddRef in case someone releases this object
// during the next call
OleDoc_DataObj_AddRef(lpThis);
OLEDBG_BEGIN2("IDataAdviseHolder::Unadvise called\r\n");
hrErr = lpServerDoc->m_lpDataAdviseHldr->lpVtbl->Unadvise(
lpServerDoc->m_lpDataAdviseHldr,
dwConnection
);
OLEDBG_END2
// release artifical AddRef
OleDoc_DataObj_Release(lpThis);
OLEDBG_END2
return hrErr;
}
#endif
#if defined( OLE_CNTR )
{
/* the Container-Only version of Outline does NOT offer
** IDataObject interface from its User documents. this is
** required by objects which can be embedded or linked. the
** Container-only app only allows linking to its contained
** objects, NOT the data of the container itself.
*/
OleDbgAssertSz(0, "User documents do NOT support IDataObject\r\n");
sc = E_NOTIMPL;
goto error;
}
#endif
error:
OLEDBG_END2
return sc;
}
// IDataObject::EnumDAdvise
STDMETHODIMP OleDoc_DataObj_EnumDAdvise(
LPDATAOBJECT lpThis,
LPENUMSTATDATA FAR* lplpenumAdvise
)
{
LPOLEDOC lpOleDoc=((struct CDocDataObjectImpl FAR*)lpThis)->lpOleDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
SCODE sc;
OLEDBG_BEGIN2("OleDoc_DataObj_EnumDAdvise\r\n")
/* NOTE: we must make sure to set all out parameters to NULL. */
*lplpenumAdvise = NULL;
/* NOTE: a document that is used to transfer data (either via
** the clipboard or drag/drop) does NOT support Advise notifications.
*/
if (lpOutlineDoc->m_fDataTransferDoc) {
sc = OLE_E_ADVISENOTSUPPORTED;
goto error;
}
#if defined( OLE_SERVER )
{
LPSERVERDOC lpServerDoc = (LPSERVERDOC)lpOleDoc;
HRESULT hrErr;
if (lpServerDoc->m_lpDataAdviseHldr == NULL) {
sc = E_FAIL;
goto error;
}
// artificial AddRef in case someone releases this
// object during the next call
OleDoc_DataObj_AddRef(lpThis);
OLEDBG_BEGIN2("IDataAdviseHolder::EnumAdvise called\r\n");
hrErr = lpServerDoc->m_lpDataAdviseHldr->lpVtbl->EnumAdvise(
lpServerDoc->m_lpDataAdviseHldr,
lplpenumAdvise
);
OLEDBG_END2
// release artifical AddRef
OleDoc_DataObj_Release(lpThis);
OLEDBG_END2
return hrErr;
}
#endif
#if defined( OLE_CNTR )
{
/* the Container-Only version of Outline does NOT offer
** IDataObject interface from its User documents. this is
** required by objects which can be embedded or linked. the
** Container-only app only allows linking to its contained
** objects, NOT the data of the container itself.
*/
OleDbgAssertSz(0, "User documents do NOT support IDataObject\r\n");
sc = E_NOTIMPL;
goto error;
}
#endif
error:
OLEDBG_END2
return sc;
}
/*************************************************************************
** OleDoc Supprt Functions common to both Container and Server versions
*************************************************************************/
/* OleDoc_CopyCommand
* ------------------
* Copy selection to clipboard.
* Post to the clipboard the formats that the app can render.
* the actual data is not rendered at this time. using the
* delayed rendering technique, Windows will send the clipboard
* owner window either a WM_RENDERALLFORMATS or a WM_RENDERFORMAT
* message when the actual data is requested.
*
* NOTE: the normal delayed rendering technique where Windows
* sends the clipboard owner window either a WM_RENDERALLFORMATS or
* a WM_RENDERFORMAT message when the actual data is requested is
* NOT exposed to the app calling OleSetClipboard. OLE internally
* creates its own window as the clipboard owner and thus our app
* will NOT get these WM_RENDER messages.
*/
void OleDoc_CopyCommand(LPOLEDOC lpSrcOleDoc)
{
LPOUTLINEDOC lpSrcOutlineDoc = (LPOUTLINEDOC)lpSrcOleDoc;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOUTLINEDOC lpClipboardDoc;
/* squirrel away a copy of the current selection to the ClipboardDoc */
lpClipboardDoc = OutlineDoc_CreateDataTransferDoc(lpSrcOutlineDoc);
if (! lpClipboardDoc)
return; // Error: could not create DataTransferDoc
lpOutlineApp->m_lpClipboardDoc = (LPOUTLINEDOC)lpClipboardDoc;
/* NOTE: initially the Doc object is created with a 0 ref
** count. in order to have a stable Doc object during the
** process of initializing the Doc instance and transfering it
** to the clipboard, we intially AddRef the Doc ref cnt and later
** Release it. This initial AddRef is artificial; it is simply
** done to guarantee that a harmless QueryInterface followed by
** a Release does not inadvertantly force our object to destroy
** itself prematurely.
*/
OleDoc_AddRef((LPOLEDOC)lpClipboardDoc);
/* NOTE: the OLE 2.0 style to put data onto the clipboard is to
** give the clipboard a pointer to an IDataObject interface that
** is able to statisfy IDataObject::GetData calls to render
** data. in our case we give the pointer to the ClipboardDoc
** which holds a cloned copy of the current user's selection.
*/
OLEDBG_BEGIN2("OleSetClipboard called\r\n")
OleSetClipboard((LPDATAOBJECT)&((LPOLEDOC)lpClipboardDoc)->m_DataObject);
OLEDBG_END2
OleDoc_Release((LPOLEDOC)lpClipboardDoc); // rel artificial AddRef above
}
/* OleDoc_PasteCommand
** -------------------
** Paste default format data from the clipboard.
** In this function we choose the highest fidelity format that the
** source clipboard IDataObject* offers that we understand.
**
** NOTE: clipboard handling in an OLE 2.0 application is
** different than normal Windows clipboard handling. Data from the
** clipboard is retieved by getting the IDataObject* pointer
** returned by calling OleGetClipboard.
*/
void OleDoc_PasteCommand(LPOLEDOC lpOleDoc)
{
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPDATAOBJECT lpClipboardDataObj = NULL;
BOOL fLink = FALSE;
BOOL fLocalDataObj = FALSE;
BOOL fStatus;
HRESULT hrErr;
hrErr = OleGetClipboard((LPDATAOBJECT FAR*)&lpClipboardDataObj);
if (hrErr != NOERROR)
return; // Clipboard seems to be empty or can't be accessed
OutlineDoc_SetRedraw ( lpOutlineDoc, FALSE );
/* check if the data on the clipboard is local to our application
** instance.
*/
if (lpOutlineApp->m_lpClipboardDoc) {
LPOLEDOC lpOleDoc = (LPOLEDOC)lpOutlineApp->m_lpClipboardDoc;
if (lpClipboardDataObj == (LPDATAOBJECT)&lpOleDoc->m_DataObject)
fLocalDataObj = TRUE;
}
fStatus = OleDoc_PasteFromData(
lpOleDoc,
lpClipboardDataObj,
fLocalDataObj,
fLink
);
OutlineDoc_SetRedraw ( lpOutlineDoc, TRUE );
if (! fStatus)
OutlineApp_ErrorMessage(g_lpApp,OLESTR("Could not paste data from clipboard!"));
if (lpClipboardDataObj)
OleStdRelease((LPUNKNOWN)lpClipboardDataObj);
}
/* OleDoc_PasteSpecialCommand
** --------------------------
** Allow the user to paste data in a particular format from the
** clipboard. The paste special command displays a dialog to the
** user that allows him to choose the format to be pasted from the
** list of formats available.
**
** NOTE: the PasteSpecial dialog is one of the standard OLE 2.0
** UI dialogs for which the dialog is implemented and in the OLE2UI
** library.
**
** NOTE: clipboard handling in an OLE 2.0 application is
** different than normal Windows clipboard handling. Data from the
** clipboard is retieved by getting the IDataObject* pointer
** returned by calling OleGetClipboard.
*/
void OleDoc_PasteSpecialCommand(LPOLEDOC lpOleDoc)
{
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
LPDATAOBJECT lpClipboardDataObj = NULL;
CLIPFORMAT cfFormat;
int nFmtEtc;
UINT uInt;
BOOL fLink = FALSE;
BOOL fLocalDataObj = FALSE;
BOOL fStatus;
HRESULT hrErr;
OLEUIPASTESPECIAL ouiPasteSpl;
BOOL fDisplayAsIcon;
hrErr = OleGetClipboard((LPDATAOBJECT FAR*)&lpClipboardDataObj);
if (hrErr != NOERROR)
return; // Clipboard seems to be empty or can't be accessed
/* check if the data on the clipboard is local to our application
** instance.
*/
if (lpOutlineApp->m_lpClipboardDoc) {
LPOLEDOC lpOleDoc = (LPOLEDOC)lpOutlineApp->m_lpClipboardDoc;
if (lpClipboardDataObj == (LPDATAOBJECT)&lpOleDoc->m_DataObject)
fLocalDataObj = TRUE;
}
/* Display the PasteSpecial dialog and allow the user to select the
** format to paste.
*/
_fmemset((LPOLEUIPASTESPECIAL)&ouiPasteSpl, 0, sizeof(OLEUIPASTESPECIAL));
ouiPasteSpl.cbStruct = sizeof(OLEUIPASTESPECIAL); //Structure Size
ouiPasteSpl.dwFlags = PSF_SELECTPASTE | PSF_SHOWHELP; //IN-OUT: Flags
ouiPasteSpl.hWndOwner = lpOutlineApp->m_lpDoc->m_hWndDoc; //Owning window
ouiPasteSpl.lpszCaption = "Paste Special"; //Dialog caption bar contents
ouiPasteSpl.lpfnHook = NULL; //Hook callback
ouiPasteSpl.lCustData = 0; //Custom data to pass to hook
ouiPasteSpl.hInstance = NULL; //Instance for customized template name
ouiPasteSpl.lpszTemplate = NULL; //Customized template name
ouiPasteSpl.hResource = NULL; //Customized template handle
ouiPasteSpl.arrPasteEntries = lpOleApp->m_arrPasteEntries;
ouiPasteSpl.cPasteEntries = lpOleApp->m_nPasteEntries;
ouiPasteSpl.lpSrcDataObj = lpClipboardDataObj;
ouiPasteSpl.arrLinkTypes = lpOleApp->m_arrLinkTypes;
ouiPasteSpl.cLinkTypes = lpOleApp->m_nLinkTypes;
ouiPasteSpl.cClsidExclude = 0;
OLEDBG_BEGIN3("OleUIPasteSpecial called\r\n")
uInt = OleUIPasteSpecial(&ouiPasteSpl);
OLEDBG_END3
fDisplayAsIcon =
(ouiPasteSpl.dwFlags & PSF_CHECKDISPLAYASICON ? TRUE : FALSE);
if (uInt == OLEUI_OK) {
nFmtEtc = ouiPasteSpl.nSelectedIndex;
fLink = ouiPasteSpl.fLink;
if (nFmtEtc < 0 || nFmtEtc >= lpOleApp->m_nPasteEntries) {
OutlineApp_ErrorMessage(lpOutlineApp, ErrMsgBadFmt);
goto error;
}
OutlineDoc_SetRedraw ( lpOutlineDoc, FALSE );
cfFormat = lpOleApp->m_arrPasteEntries[nFmtEtc].fmtetc.cfFormat;
fStatus = OleDoc_PasteFormatFromData(
lpOleDoc,
cfFormat,
lpClipboardDataObj,
fLocalDataObj,
fLink,
fDisplayAsIcon,
ouiPasteSpl.hMetaPict,
(LPSIZEL)&ouiPasteSpl.sizel
);
OutlineDoc_SetRedraw ( lpOutlineDoc, TRUE );
if (! fStatus) {
OutlineApp_ErrorMessage(lpOutlineApp, ErrMsgPasteFailed);
goto error;
}
} else if (uInt == OLEUI_PSERR_CLIPBOARDCHANGED) {
/* NOTE: this error code is returned when the contents of
** the clipboard change while the PasteSpecial dialog is up.
** in this situation the PasteSpecial dialog automatically
** brings itself down and NO paste operation should be performed.
*/
OutlineApp_ErrorMessage(lpOutlineApp, ErrMsgClipboardChanged);
}
error:
if (lpClipboardDataObj)
OleStdRelease((LPUNKNOWN)lpClipboardDataObj);
if (uInt == OLEUI_OK && ouiPasteSpl.hMetaPict)
// clean up metafile
OleUIMetafilePictIconFree(ouiPasteSpl.hMetaPict);
}
/* OleDoc_CreateDataTransferDoc
* ----------------------------
*
* Create a document to be use to transfer data (either via a
* drag/drop operation of the clipboard). Copy the selection of the
* source doc to the data transfer document. A data transfer document is
* the same as a document that is created by the user except that it is
* NOT made visible to the user. it is specially used to hold a copy of
* data that the user should not be able to change.
*
* NOTE: in the OLE version the data transfer document is used
* specifically to provide an IDataObject* that renders the data copied.
*/
LPOUTLINEDOC OleDoc_CreateDataTransferDoc(LPOLEDOC lpSrcOleDoc)
{
LPOUTLINEDOC lpSrcOutlineDoc = (LPOUTLINEDOC)lpSrcOleDoc;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOUTLINEDOC lpDestOutlineDoc;
LPLINELIST lpSrcLL = &lpSrcOutlineDoc->m_LineList;
LINERANGE lrSel;
int nCopied;
lpDestOutlineDoc = OutlineApp_CreateDoc(lpOutlineApp, TRUE);
if (! lpDestOutlineDoc) return NULL;
// set the ClipboardDoc to an (Untitled) doc.
if (! OutlineDoc_InitNewFile(lpDestOutlineDoc))
goto error;
LineList_GetSel(lpSrcLL, (LPLINERANGE)&lrSel);
nCopied = LineList_CopySelToDoc(
lpSrcLL,
(LPLINERANGE)&lrSel,
lpDestOutlineDoc
);
if (nCopied != (lrSel.m_nEndLine - lrSel.m_nStartLine + 1)) {
OleDbgAssertSz(FALSE,"OleDoc_CreateDataTransferDoc: entire selection NOT copied\r\n");
goto error; // ERROR: all lines could NOT be copied
}
#if defined( OLE_SERVER )
{
LPOLEDOC lpSrcOleDoc = (LPOLEDOC)lpSrcOutlineDoc;
LPOLEDOC lpDestOleDoc = (LPOLEDOC)lpDestOutlineDoc;
LPSERVERDOC lpDestServerDoc = (LPSERVERDOC)lpDestOutlineDoc;
LPMONIKER lpmkDoc = NULL;
LPMONIKER lpmkItem = NULL;
/* If source document is able to provide a moniker, then the
** destination document (lpDestOutlineDoc) should offer
** CF_LINKSOURCE via its IDataObject interface that it gives
** to the clipboard or the drag/drop operation.
**
** NOTE: we want to ask the source document if it can
** produce a moniker, but we do NOT want to FORCE moniker
** assignment at this point. we only want to FORCE moniker
** assignment later if a Paste Link occurs (ie. GetData for
** CF_LINKSOURCE). if the source document is able to give
** a moniker, then we store a pointer to the source document
** so we can ask it at a later time to get the moniker. we
** also save the range of the current selection so we can
** generate a proper item name later when Paste Link occurs.
** Also we need to give a string which identifies the source
** of the copy in the CF_OBJECTDESCRIPTOR format. this
** string is used to display in the PasteSpecial dialog. we
** get and store a TEMPFORUSER moniker which identifies the
** source of copy.
*/
lpDestOleDoc->m_lpSrcDocOfCopy = lpSrcOleDoc;
lpmkDoc = OleDoc_GetFullMoniker(lpSrcOleDoc, GETMONIKER_TEMPFORUSER);
if (lpmkDoc != NULL) {
lpDestOleDoc->m_fLinkSourceAvail = TRUE;
lpDestServerDoc->m_lrSrcSelOfCopy = lrSel;
OleStdRelease((LPUNKNOWN)lpmkDoc);
}
}
#endif
#if defined( OLE_CNTR )
{
LPOLEDOC lpSrcOleDoc = (LPOLEDOC)lpSrcOutlineDoc;
LPOLEDOC lpDestOleDoc = (LPOLEDOC)lpDestOutlineDoc;
LPCONTAINERDOC lpDestContainerDoc = (LPCONTAINERDOC)lpDestOutlineDoc;
/* If one line was copied from the source document, and it was a
** single OLE object, then the destination document should
** offer additional data formats to allow the transfer of
** the OLE object via IDataObject::GetData. Specifically, the
** following additional data formats are offered if a single
** OLE object is copied:
** CF_EMBEDDEDOBJECT
** CF_OBJECTDESCRIPTOR (should be given even w/o object)
** CF_METAFILEPICT (note: dwAspect depends on object)
** CF_LINKSOURCE -- if linking is possible
** CF_LINKSOURCEDESCRIPTOR -- if linking is possible
**
** optionally the container may give
** <data format available in OLE object's cache>
*/
if (nCopied == 1) {
LPOLEOBJECT lpSrcOleObj;
LPCONTAINERLINE lpSrcContainerLine;
DWORD dwStatus;
lpSrcContainerLine = (LPCONTAINERLINE)LineList_GetLine(
lpSrcLL,
lrSel.m_nStartLine
);
if (! lpSrcContainerLine)
goto error;
lpDestOleDoc->m_lpSrcDocOfCopy = lpSrcOleDoc;
if ((((LPLINE)lpSrcContainerLine)->m_lineType==CONTAINERLINETYPE)
&& ((lpSrcOleObj=lpSrcContainerLine->m_lpOleObj)!=NULL)) {
lpDestContainerDoc->m_fEmbeddedObjectAvail = TRUE;
lpSrcOleObj->lpVtbl->GetUserClassID(
lpSrcOleObj,
&lpDestContainerDoc->m_clsidOleObjCopied
);
lpDestContainerDoc->m_dwAspectOleObjCopied =
lpSrcContainerLine->m_dwDrawAspect;
/* NOTE: if the object is allowed to be linked
** to from the inside (ie. we are allowed to
** give out a moniker which binds to the running
** OLE object), then we want to offer
** CF_LINKSOURCE format. if the object is an OLE
** 2.0 embedded object then it is allowed to be
** linked to from the inside. if the object is
** either an OleLink or an OLE 1.0 embedding
** then it can not be linked to from the inside.
** if we were a container/server app then we
** could offer linking to the outside of the
** object (ie. a pseudo object within our
** document). we are a container only app that
** does not support linking to ranges of its data.
*/
lpSrcOleObj->lpVtbl->GetMiscStatus(
lpSrcOleObj,
DVASPECT_CONTENT, /* aspect is not important */
(LPDWORD)&dwStatus
);
if (! (dwStatus & OLEMISC_CANTLINKINSIDE)) {
/* Our container supports linking to an embedded
** object. We want the lpDestContainerDoc to
** offer CF_LINKSOURCE via the IDataObject
** interface that it gives to the clipboard or
** the drag/drop operation. The link source will
** be identified by a composite moniker
** comprised of the FileMoniker of the source
** document and an ItemMoniker which identifies
** the OLE object inside the container. we do
** NOT want to force moniker assignment to the
** OLE object now (at copy time); we only want
** to FORCE moniker assignment later if a Paste
** Link occurs (ie. GetData for CF_LINKSOURCE).
** thus we store a pointer to the source document
** and the source ContainerLine so we can
** generate a proper ItemMoniker later when
** Paste Link occurs.
*/
lpDestOleDoc->m_fLinkSourceAvail = TRUE;
lpDestContainerDoc->m_lpSrcContainerLine =
lpSrcContainerLine;
}
}
}
}
#endif // OLE_CNTR
return lpDestOutlineDoc;
error:
if (lpDestOutlineDoc)
OutlineDoc_Destroy(lpDestOutlineDoc);
return NULL;
}
/* OleDoc_PasteFromData
** --------------------
**
** Paste data from an IDataObject*. The IDataObject* may come from
** the clipboard (GetClipboard) or from a drag/drop operation.
** In this function we choose the best format that we prefer.
**
** Returns TRUE if data was successfully pasted.
** FALSE if data could not be pasted.
*/
BOOL OleDoc_PasteFromData(
LPOLEDOC lpOleDoc,
LPDATAOBJECT lpSrcDataObj,
BOOL fLocalDataObj,
BOOL fLink
)
{
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
CLIPFORMAT cfFormat;
BOOL fDisplayAsIcon = FALSE;
SIZEL sizelInSrc = {0, 0};
HGLOBAL hMem = NULL;
HGLOBAL hMetaPict = NULL;
STGMEDIUM medium;
if (fLink) {
#if defined( OLE_SERVER )
return FALSE; // server version of app does NOT support links
#endif
#if defined( OLE_CNTR )
// container version of app only supports OLE object type links
cfFormat = lpOleApp->m_cfLinkSource;
#endif
} else {
int nFmtEtc;
nFmtEtc = OleStdGetPriorityClipboardFormat(
lpSrcDataObj,
lpOleApp->m_arrPasteEntries,
lpOleApp->m_nPasteEntries
);
if (nFmtEtc < 0)
return FALSE; // there is no format we like
cfFormat = lpOleApp->m_arrPasteEntries[nFmtEtc].fmtetc.cfFormat;
}
/* NOTE: we need to check what dwDrawAspect is being
** transfered. if the data is an object that is displayed as an
** icon in the source, then we want to keep it as an icon. the
** aspect the object is displayed in at the source is transfered
** via the CF_OBJECTDESCRIPTOR format for a Paste operation.
*/
if (hMem = OleStdGetData(
lpSrcDataObj,
(CLIPFORMAT)lpOleApp->m_cfObjectDescriptor,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium)) {
LPOBJECTDESCRIPTOR lpOD = GlobalLock(hMem);
fDisplayAsIcon = (lpOD->dwDrawAspect == DVASPECT_ICON ? TRUE : FALSE);
sizelInSrc = lpOD->sizel; // size of object/picture in source (opt.)
GlobalUnlock(hMem);
ReleaseStgMedium((LPSTGMEDIUM)&medium); // equiv to GlobalFree
if (fDisplayAsIcon) {
hMetaPict = OleStdGetData(
lpSrcDataObj,
CF_METAFILEPICT,
NULL,
DVASPECT_ICON,
(LPSTGMEDIUM)&medium
);
if (hMetaPict == NULL)
fDisplayAsIcon = FALSE; // give up; failed to get icon MFP
}
}
return OleDoc_PasteFormatFromData(
lpOleDoc,
cfFormat,
lpSrcDataObj,
fLocalDataObj,
fLink,
fDisplayAsIcon,
hMetaPict,
(LPSIZEL)&sizelInSrc
);
if (hMetaPict)
ReleaseStgMedium((LPSTGMEDIUM)&medium); // properly free METAFILEPICT
}
/* OleDoc_PasteFormatFromData
** --------------------------
**
** Paste a particular data format from a IDataObject*. The
** IDataObject* may come from the clipboard (GetClipboard) or from a
** drag/drop operation.
**
** Returns TRUE if data was successfully pasted.
** FALSE if data could not be pasted.
*/
BOOL OleDoc_PasteFormatFromData(
LPOLEDOC lpOleDoc,
CLIPFORMAT cfFormat,
LPDATAOBJECT lpSrcDataObj,
BOOL fLocalDataObj,
BOOL fLink,
BOOL fDisplayAsIcon,
HGLOBAL hMetaPict,
LPSIZEL lpSizelInSrc
)
{
#if defined( OLE_SERVER )
/* call server specific version of the function. */
return ServerDoc_PasteFormatFromData(
(LPSERVERDOC)lpOleDoc,
cfFormat,
lpSrcDataObj,
fLocalDataObj,
fLink
);
#endif
#if defined( OLE_CNTR )
/* call container specific version of the function. */
return ContainerDoc_PasteFormatFromData(
(LPCONTAINERDOC)lpOleDoc,
cfFormat,
lpSrcDataObj,
fLocalDataObj,
fLink,
fDisplayAsIcon,
hMetaPict,
lpSizelInSrc
);
#endif
}
/* OleDoc_QueryPasteFromData
** -------------------------
**
** Check if the IDataObject* offers data in a format that we can
** paste. The IDataObject* may come from the clipboard
** (GetClipboard) or from a drag/drop operation.
**
** Returns TRUE if paste can be performed
** FALSE if paste is not possible.
*/
BOOL OleDoc_QueryPasteFromData(
LPOLEDOC lpOleDoc,
LPDATAOBJECT lpSrcDataObj,
BOOL fLink
)
{
#if defined( OLE_SERVER )
return ServerDoc_QueryPasteFromData(
(LPSERVERDOC) lpOleDoc,
lpSrcDataObj,
fLink
);
#endif
#if defined( OLE_CNTR )
return ContainerDoc_QueryPasteFromData(
(LPCONTAINERDOC) lpOleDoc,
lpSrcDataObj,
fLink
);
#endif
}
/* OleDoc_GetExtent
* ----------------
*
* Get the extent (width, height) of the entire document in Himetric.
*/
void OleDoc_GetExtent(LPOLEDOC lpOleDoc, LPSIZEL lpsizel)
{
LPLINELIST lpLL = (LPLINELIST)&((LPOUTLINEDOC)lpOleDoc)->m_LineList;
LineList_CalcSelExtentInHimetric(lpLL, NULL, lpsizel);
}
/* OleDoc_GetObjectDescriptorData
* ------------------------------
*
* Return a handle to an object's data in CF_OBJECTDESCRIPTOR form
*
*/
HGLOBAL OleDoc_GetObjectDescriptorData(LPOLEDOC lpOleDoc, LPLINERANGE lplrSel)
{
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpOleDoc;
/* Only our data transfer doc renders CF_OBJECTDESCRIPTOR */
OleDbgAssert(lpOutlineDoc->m_fDataTransferDoc);
#if defined( OLE_SERVER )
{
LPSERVERDOC lpServerDoc = (LPSERVERDOC)lpOleDoc;
SIZEL sizel;
POINTL pointl;
LPOLESTR lpszSrcOfCopy = NULL;
IBindCtx FAR *pbc = NULL;
HGLOBAL hObjDesc;
DWORD dwStatus = 0;
LPOUTLINEDOC lpSrcDocOfCopy=(LPOUTLINEDOC)lpOleDoc->m_lpSrcDocOfCopy;
LPMONIKER lpSrcMonikerOfCopy = ServerDoc_GetSelFullMoniker(
(LPSERVERDOC)lpOleDoc->m_lpSrcDocOfCopy,
&lpServerDoc->m_lrSrcSelOfCopy,
GETMONIKER_TEMPFORUSER
);
SvrDoc_OleObj_GetMiscStatus(
(LPOLEOBJECT)&lpServerDoc->m_OleObject,
DVASPECT_CONTENT,
&dwStatus
);
OleDoc_GetExtent(lpOleDoc, &sizel);
pointl.x = pointl.y = 0;
if (lpSrcMonikerOfCopy) {
CreateBindCtx(0, (LPBC FAR*)&pbc);
lpSrcMonikerOfCopy->lpVtbl->GetDisplayName(
lpSrcMonikerOfCopy, pbc, NULL, &lpszSrcOfCopy);
pbc->lpVtbl->Release(pbc);
lpSrcMonikerOfCopy->lpVtbl->Release(lpSrcMonikerOfCopy);
} else {
/* this document has no moniker; use our FullUserTypeName
** as the description of the source of copy.
*/
lpszSrcOfCopy = FULLUSERTYPENAME;
}
hObjDesc = OleStdGetObjectDescriptorData(
CLSID_APP,
DVASPECT_CONTENT,
sizel,
pointl,
dwStatus,
FULLUSERTYPENAME,
lpszSrcOfCopy
);
if (lpSrcMonikerOfCopy && lpszSrcOfCopy)
OleStdFreeString(lpszSrcOfCopy, NULL);
return hObjDesc;
}
#endif
#if defined( OLE_CNTR )
{
LPCONTAINERDOC lpContainerDoc = (LPCONTAINERDOC)lpOleDoc;
LPLINELIST lpLL = (LPLINELIST)&((LPOUTLINEDOC)lpOleDoc)->m_LineList;
LPCONTAINERLINE lpContainerLine;
HGLOBAL hObjDesc;
BOOL fSelIsOleObject = FALSE;
LPOLEOBJECT lpOleObj;
SIZEL sizel;
POINTL pointl;
if ( lpLL->m_nNumLines == 1 ) {
fSelIsOleObject = ContainerDoc_IsSelAnOleObject(
lpContainerDoc,
&IID_IOleObject,
(LPUNKNOWN FAR*)&lpOleObj,
NULL, /* we don't need the line index */
(LPCONTAINERLINE FAR*)&lpContainerLine
);
}
pointl.x = pointl.y = 0;
if (fSelIsOleObject) {
/* NOTE: a single OLE object is being transfered via
** this DataTransferDoc. we need to generate the
** CF_ObjectDescrioptor which describes the OLE object.
*/
LPOUTLINEDOC lpSrcOutlineDoc =
(LPOUTLINEDOC)lpOleDoc->m_lpSrcDocOfCopy;
LPOLESTR lpszSrcOfCopy = lpSrcOutlineDoc->m_szFileName;
BOOL fFreeSrcOfCopy = FALSE;
SIZEL sizelOleObject;
LPLINE lpLine = (LPLINE)lpContainerLine;
/* if the object copied can be linked to then get a
** TEMPFORUSER form of the moniker which identifies the
** source of copy. we do not want to force the
** assignment of the moniker until CF_LINKSOURCE is
** rendered.
** if the object copied can not be a link source then use
** the source filename to identify the source of copy.
** there is no need to generate a moniker for the object
** copied.
*/
if (lpOleDoc->m_fLinkSourceAvail &&
lpContainerDoc->m_lpSrcContainerLine) {
LPBINDCTX pbc = NULL;
LPMONIKER lpSrcMonikerOfCopy = ContainerLine_GetFullMoniker(
lpContainerDoc->m_lpSrcContainerLine,
GETMONIKER_TEMPFORUSER
);
if (lpSrcMonikerOfCopy) {
CreateBindCtx(0, (LPBC FAR*)&pbc);
if (pbc != NULL) {
lpSrcMonikerOfCopy->lpVtbl->GetDisplayName(
lpSrcMonikerOfCopy, pbc, NULL,&lpszSrcOfCopy);
pbc->lpVtbl->Release(pbc);
fFreeSrcOfCopy = TRUE;
}
lpSrcMonikerOfCopy->lpVtbl->Release(lpSrcMonikerOfCopy);
}
}
/* NOTE: Get size that object is being drawn. If the
** object has been scaled because the user resized the
** object, then we want to pass the scaled size of the
** object in the ObjectDescriptor rather than the size
** that the object would return via
** IOleObject::GetExtent and IViewObject2::GetExtent. in
** this way if the object is transfered to another container
** (via clipboard or drag/drop), then the object will
** remain the scaled size.
*/
sizelOleObject.cx = lpLine->m_nWidthInHimetric;
sizelOleObject.cy = lpLine->m_nHeightInHimetric;
hObjDesc = OleStdGetObjectDescriptorDataFromOleObject(
lpOleObj,
lpszSrcOfCopy,
lpContainerLine->m_dwDrawAspect,
pointl,
(LPSIZEL)&sizelOleObject
);
if (fFreeSrcOfCopy && lpszSrcOfCopy)
OleStdFreeString(lpszSrcOfCopy, NULL);
OleStdRelease((LPUNKNOWN)lpOleObj);
return hObjDesc;
} else {
/* NOTE: the data being transfered via this
** DataTransferDoc is NOT a single OLE object. thus in
** this case the CF_ObjectDescriptor data should
** describe our container app itself.
*/
OleDoc_GetExtent(lpOleDoc, &sizel);
return OleStdGetObjectDescriptorData(
CLSID_NULL, /* not used if no object formats */
DVASPECT_CONTENT,
sizel,
pointl,
0,
NULL, /* UserTypeName not used if no obj fmt's */
FULLUSERTYPENAME /* string to identify source of copy */
);
}
}
#endif // OLE_CNTR
}
#if defined( OLE_SERVER )
/*************************************************************************
** ServerDoc Supprt Functions Used by Server versions
*************************************************************************/
/* ServerDoc_PasteFormatFromData
** -----------------------------
**
** Paste a particular data format from a IDataObject*. The
** IDataObject* may come from the clipboard (GetClipboard) or from a
** drag/drop operation.
**
** NOTE: fLink is specified then FALSE if returned because the
** Server only version of the app can not support links.
**
** Returns TRUE if data was successfully pasted.
** FALSE if data could not be pasted.
*/
BOOL ServerDoc_PasteFormatFromData(
LPSERVERDOC lpServerDoc,
CLIPFORMAT cfFormat,
LPDATAOBJECT lpSrcDataObj,
BOOL fLocalDataObj,
BOOL fLink
)
{
LPLINELIST lpLL = (LPLINELIST)&((LPOUTLINEDOC)lpServerDoc)->m_LineList;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
int nIndex;
int nCount = 0;
HGLOBAL hData;
STGMEDIUM medium;
LINERANGE lrSel;
if (LineList_GetCount(lpLL) == 0)
nIndex = -1; // pasting to empty list
else
nIndex=LineList_GetFocusLineIndex(lpLL);
if (fLink) {
/* We should paste a Link to the data, but we do not support links */
return FALSE;
} else {
if (cfFormat == lpOutlineApp->m_cfOutline) {
hData = OleStdGetData(
lpSrcDataObj,
(CLIPFORMAT)lpOutlineApp->m_cfOutline,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium
);
if (hData == NULL)
return FALSE;
nCount = OutlineDoc_PasteOutlineData(
(LPOUTLINEDOC)lpServerDoc,
hData,
nIndex
);
// NOTE: we must free data handle by releasing the medium
ReleaseStgMedium((LPSTGMEDIUM)&medium);
} else if(cfFormat == CF_TEXT) {
hData = OleStdGetData(
lpSrcDataObj,
CF_TEXT,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium
);
if (hData == NULL)
return FALSE;
nCount = OutlineDoc_PasteTextData(
(LPOUTLINEDOC)lpServerDoc,
hData,
nIndex
);
// NOTE: we must free data handle by releasing the medium
ReleaseStgMedium((LPSTGMEDIUM)&medium);
}
}
lrSel.m_nEndLine = nIndex + 1;
lrSel.m_nStartLine = nIndex + nCount;
LineList_SetSel(lpLL, &lrSel);
return TRUE;
}
/* ServerDoc_QueryPasteFromData
** ----------------------------
**
** Check if the IDataObject* offers data in a format that we can
** paste. The IDataObject* may come from the clipboard
** (GetClipboard) or from a drag/drop operation.
** In this function we look if one of the following formats is
** offered:
** CF_OUTLINE
** CF_TEXT
**
** NOTE: fLink is specified then FALSE if returned because the
** Server only version of the app can not support links.
**
** Returns TRUE if paste can be performed
** FALSE if paste is not possible.
*/
BOOL ServerDoc_QueryPasteFromData(
LPSERVERDOC lpServerDoc,
LPDATAOBJECT lpSrcDataObj,
BOOL fLink
)
{
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
if (fLink) {
/* we do not support links */
return FALSE;
} else {
int nFmtEtc;
nFmtEtc = OleStdGetPriorityClipboardFormat(
lpSrcDataObj,
lpOleApp->m_arrPasteEntries,
lpOleApp->m_nPasteEntries
);
if (nFmtEtc < 0)
return FALSE; // there is no format we like
}
return TRUE;
}
/* ServerDoc_GetData
* -----------------
*
* Render data from the document on a CALLEE allocated STGMEDIUM.
* This routine is called via IDataObject::GetData.
*/
HRESULT ServerDoc_GetData (
LPSERVERDOC lpServerDoc,
LPFORMATETC lpformatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpServerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpServerDoc;
LPSERVERAPP lpServerApp = (LPSERVERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpServerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpServerApp;
HRESULT hrErr;
SCODE sc;
// NOTE: we must set out pointer parameters to NULL
lpMedium->pUnkForRelease = NULL;
/* NOTE: we must make sure to set all out parameters to NULL. */
lpMedium->tymed = TYMED_NULL;
lpMedium->pUnkForRelease = NULL; // we transfer ownership to caller
lpMedium->u.hGlobal = NULL;
if(lpformatetc->cfFormat == lpOutlineApp->m_cfOutline) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OutlineDoc_GetOutlineData (lpOutlineDoc,NULL);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
OleDbgOut3("ServerDoc_GetData: rendered CF_OUTLINE\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == CF_METAFILEPICT &&
(lpformatetc->dwAspect & DVASPECT_CONTENT) ) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_MFPICT)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = ServerDoc_GetMetafilePictData(lpServerDoc,NULL);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_MFPICT;
OleDbgOut3("ServerDoc_GetData: rendered CF_METAFILEPICT\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == CF_METAFILEPICT &&
(lpformatetc->dwAspect & DVASPECT_ICON) ) {
CLSID clsid;
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_MFPICT)) {
sc = DV_E_FORMATETC;
goto error;
}
/* NOTE: we should return the default icon for our class.
** we must be carefull to use the correct CLSID here.
** if we are currently preforming a "TreatAs (aka. ActivateAs)"
** operation then we need to use the class of the object
** written in the storage of the object. otherwise we would
** use our own class id.
*/
if (ServerDoc_GetClassID(lpServerDoc, (LPCLSID)&clsid) != NOERROR) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal=GetIconOfClass(g_lpApp->m_hInst,(REFCLSID)&clsid, NULL, FALSE);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_MFPICT;
OleDbgOut3("ServerDoc_GetData: rendered CF_METAFILEPICT (icon)\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == CF_TEXT) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OutlineDoc_GetTextData (
(LPOUTLINEDOC)lpServerDoc,
NULL
);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
OleDbgOut3("ServerDoc_GetData: rendered CF_TEXT\r\n");
return NOERROR;
}
/* the above are the only formats supports by a user document (ie.
** a non-data transfer doc). if the document is used for
** purposes of data transfer, then additional formats are offered.
*/
if (! lpOutlineDoc->m_fDataTransferDoc) {
sc = DV_E_FORMATETC;
goto error;
}
/* NOTE: ObjectDescriptor and LinkSrcDescriptor will
** contain the same data for the pure container and pure server
** type applications. only a container/server application may
** have different content for ObjectDescriptor and
** LinkSrcDescriptor. if a container/server copies a link for
** example, then the ObjectDescriptor would give the class
** of the link source but the LinkSrcDescriptor would give the
** class of the container/server itself. in this situation if a
** paste operation occurs, an equivalent link is pasted, but if
** a pastelink operation occurs, then a link to a pseudo object
** in the container/server is created.
*/
if (lpformatetc->cfFormat == lpOleApp->m_cfObjectDescriptor ||
(lpformatetc->cfFormat == lpOleApp->m_cfLinkSrcDescriptor &&
lpOleDoc->m_fLinkSourceAvail)) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OleDoc_GetObjectDescriptorData (
(LPOLEDOC)lpServerDoc,
NULL
);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
OleDbgOut3("ServerDoc_GetData: rendered CF_OBJECTDESCRIPTOR\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfEmbedSource) {
hrErr = OleStdGetOleObjectData(
(LPPERSISTSTORAGE)&lpServerDoc->m_PersistStorage,
lpformatetc,
lpMedium,
FALSE /* fUseMemory -- (use file-base stg) */
);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ServerDoc_GetData: rendered CF_EMBEDSOURCE\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource) {
if (lpOleDoc->m_fLinkSourceAvail) {
LPMONIKER lpmk;
lpmk = ServerDoc_GetSelFullMoniker(
(LPSERVERDOC)lpOleDoc->m_lpSrcDocOfCopy,
&lpServerDoc->m_lrSrcSelOfCopy,
GETMONIKER_FORCEASSIGN
);
if (lpmk) {
hrErr = OleStdGetLinkSourceData(
lpmk,
(LPCLSID)&CLSID_APP,
lpformatetc,
lpMedium
);
OleStdRelease((LPUNKNOWN)lpmk);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ServerDoc_GetData: rendered CF_LINKSOURCE\r\n");
return NOERROR;
} else {
sc = E_FAIL;
goto error;
}
} else {
sc = DV_E_FORMATETC;
goto error;
}
} else {
sc = DV_E_FORMATETC;
goto error;
}
return NOERROR;
error:
return sc;
}
/* ServerDoc_GetDataHere
* ---------------------
*
* Render data from the document on a CALLER allocated STGMEDIUM.
* This routine is called via IDataObject::GetDataHere.
*/
HRESULT ServerDoc_GetDataHere (
LPSERVERDOC lpServerDoc,
LPFORMATETC lpformatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpServerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpServerDoc;
LPSERVERAPP lpServerApp = (LPSERVERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpServerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpServerApp;
HRESULT hrErr;
SCODE sc;
// NOTE: lpMedium is an IN parameter. we should NOT set
// lpMedium->pUnkForRelease to NULL
/* our user document does not support any formats for GetDataHere.
** if the document is used for
** purposes of data transfer, then additional formats are offered.
*/
if (! lpOutlineDoc->m_fDataTransferDoc) {
sc = DV_E_FORMATETC;
goto error;
}
if (lpformatetc->cfFormat == lpOleApp->m_cfEmbedSource) {
hrErr = OleStdGetOleObjectData(
(LPPERSISTSTORAGE)&lpServerDoc->m_PersistStorage,
lpformatetc,
lpMedium,
FALSE /* fUseMemory -- (use file-base stg) */
);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ServerDoc_GetDataHere: rendered CF_EMBEDSOURCE\r\n");
return NOERROR;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource) {
if (lpOleDoc->m_fLinkSourceAvail) {
LPMONIKER lpmk;
lpmk = ServerDoc_GetSelFullMoniker(
(LPSERVERDOC)lpOleDoc->m_lpSrcDocOfCopy,
&lpServerDoc->m_lrSrcSelOfCopy,
GETMONIKER_FORCEASSIGN
);
if (lpmk) {
hrErr = OleStdGetLinkSourceData(
lpmk,
(LPCLSID)&CLSID_APP,
lpformatetc,
lpMedium
);
OleStdRelease((LPUNKNOWN)lpmk);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ServerDoc_GetDataHere: rendered CF_LINKSOURCE\r\n");
return NOERROR;
} else {
sc = E_FAIL;
goto error;
}
} else {
sc = DV_E_FORMATETC;
goto error;
}
} else {
/* Caller is requesting data to be returned in Caller allocated
** medium, but we do NOT support this. we only support
** global memory blocks that WE allocate for the caller.
*/
sc = DV_E_FORMATETC;
goto error;
}
return NOERROR;
error:
return sc;
}
/* ServerDoc_QueryGetData
* ----------------------
*
* Answer if a particular data format is supported via GetData/GetDataHere.
* This routine is called via IDataObject::QueryGetData.
*/
HRESULT ServerDoc_QueryGetData (LPSERVERDOC lpServerDoc,LPFORMATETC lpformatetc)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpServerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpServerDoc;
LPSERVERAPP lpServerApp = (LPSERVERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpServerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpServerApp;
/* Caller is querying if we support certain format but does not
** want any data actually returned.
*/
if (lpformatetc->cfFormat == lpOutlineApp->m_cfOutline ||
lpformatetc->cfFormat == CF_TEXT) {
// we only support HGLOBAL
return OleStdQueryFormatMedium(lpformatetc, TYMED_HGLOBAL);
} else if (lpformatetc->cfFormat == CF_METAFILEPICT &&
(lpformatetc->dwAspect &
(DVASPECT_CONTENT | DVASPECT_ICON)) ) {
return OleStdQueryFormatMedium(lpformatetc, TYMED_MFPICT);
}
/* the above are the only formats supports by a user document (ie.
** a non-data transfer doc). if the document is used for
** purposes of data transfer, then additional formats are offered.
*/
if (! lpOutlineDoc->m_fDataTransferDoc)
return DV_E_FORMATETC;
if (lpformatetc->cfFormat == lpOleApp->m_cfEmbedSource) {
return OleStdQueryOleObjectData(lpformatetc);
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource &&
lpOleDoc->m_fLinkSourceAvail) {
return OleStdQueryLinkSourceData(lpformatetc);
} else if (lpformatetc->cfFormat == lpOleApp->m_cfObjectDescriptor) {
return OleStdQueryObjectDescriptorData(lpformatetc);
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSrcDescriptor &&
lpOleDoc->m_fLinkSourceAvail) {
return OleStdQueryObjectDescriptorData(lpformatetc);
}
return DV_E_FORMATETC;
}
/* ServerDoc_EnumFormatEtc
* -----------------------
*
* Return an enumerator which enumerates the data accepted/offered by
* the document.
* This routine is called via IDataObject::EnumFormatEtc.
*/
HRESULT ServerDoc_EnumFormatEtc(
LPSERVERDOC lpServerDoc,
DWORD dwDirection,
LPENUMFORMATETC FAR* lplpenumFormatEtc
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpServerDoc;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
int nActualFmts;
SCODE sc = S_OK;
/* NOTE: the enumeration of formats for a data transfer
** document is not a static list. the list of formats offered
** may or may not include CF_LINKSOURCE depending on whether a
** moniker is available for our document. thus we can NOT use
** the default OLE enumerator which enumerates the formats that
** are registered for our app in the registration database.
*/
if (dwDirection == DATADIR_GET) {
nActualFmts = lpOleApp->m_nDocGetFmts;
/* If the document does not have a Moniker, then exclude
** CF_LINKSOURCE and CF_LINKSRCDESCRIPTOR from the list of
** formats available. these formats are deliberately listed
** last in the array of possible "Get" formats.
*/
if (! lpOleDoc->m_fLinkSourceAvail)
nActualFmts -= 2;
*lplpenumFormatEtc = OleStdEnumFmtEtc_Create(
nActualFmts, lpOleApp->m_arrDocGetFmts);
if (*lplpenumFormatEtc == NULL)
sc = E_OUTOFMEMORY;
} else if (dwDirection == DATADIR_SET) {
/* NOTE: a document that is used to transfer data
** (either via the clipboard or drag/drop does NOT
** accept SetData on ANY format!
*/
sc = E_NOTIMPL;
goto error;
} else {
sc = E_INVALIDARG;
goto error;
}
error:
return sc;
}
/* ServerDoc_GetMetafilePictData
* -----------------------------
*
* Return a handle to an object's picture data in metafile format.
*
*
* RETURNS: A handle to the object's data in metafile format.
*
*/
HGLOBAL ServerDoc_GetMetafilePictData(
LPSERVERDOC lpServerDoc,
LPLINERANGE lplrSel
)
{
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOUTLINEDOC lpOutlineDoc=(LPOUTLINEDOC)lpServerDoc;
LPLINELIST lpLL=(LPLINELIST)&lpOutlineDoc->m_LineList;
LPLINE lpLine;
LPMETAFILEPICT lppict = NULL;
HGLOBAL hMFPict = NULL;
HMETAFILE hMF = NULL;
RECT rect;
RECT rectWBounds;
HDC hDC;
int i;
int nWidth;
int nStart = (lplrSel ? lplrSel->m_nStartLine : 0);
int nEnd =(lplrSel ? lplrSel->m_nEndLine : LineList_GetCount(lpLL)-1);
int nLines = nEnd - nStart + 1;
UINT fuAlign;
POINT point;
SIZE size;
hDC = CreateMetaFile(NULL);
rect.left = 0;
rect.right = 0;
rect.bottom = 0;
if (nLines > 0) {
// calculate the total height/width of LineList in HIMETRIC
for(i = nStart; i <= nEnd; i++) {
lpLine = LineList_GetLine(lpLL,i);
if (! lpLine)
continue;
nWidth = Line_GetTotalWidthInHimetric(lpLine);
rect.right = max(rect.right, nWidth);
rect.bottom -= Line_GetHeightInHimetric(lpLine);
}
SetMapMode(hDC, MM_ANISOTROPIC);
SetWindowOrgEx(hDC, 0, 0, &point);
SetWindowExtEx(hDC, rect.right, rect.bottom, &size);
rectWBounds = rect;
// Set the default font size, and font face name
SelectObject(hDC, OutlineApp_GetActiveFont(lpOutlineApp));
FillRect(hDC, (LPRECT) &rect, GetStockObject(WHITE_BRUSH));
rect.bottom = 0;
fuAlign = SetTextAlign(hDC, TA_LEFT | TA_TOP | TA_NOUPDATECP);
/* While more lines print out the text */
for(i = nStart; i <= nEnd; i++) {
lpLine = LineList_GetLine(lpLL,i);
if (! lpLine)
continue;
rect.top = rect.bottom;
rect.bottom -= Line_GetHeightInHimetric(lpLine);
/* Draw the line */
Line_Draw(lpLine, hDC, &rect, &rectWBounds, FALSE /*fHighlight*/);
}
SetTextAlign(hDC, fuAlign);
}
// Get handle to the metafile.
if (!(hMF = CloseMetaFile (hDC)))
return NULL;
if (!(hMFPict = GlobalAlloc (GALLOCFLG, sizeof (METAFILEPICT)))) {
DeleteMetaFile (hMF);
return NULL;
}
if (!(lppict = (LPMETAFILEPICT)GlobalLock(hMFPict))) {
DeleteMetaFile (hMF);
GlobalFree (hMFPict);
return NULL;
}
lppict->mm = MM_ANISOTROPIC;
lppict->hMF = hMF;
lppict->xExt = rect.right;
lppict->yExt = - rect.bottom; // add minus sign to make it +ve
GlobalUnlock (hMFPict);
return hMFPict;
}
#endif // OLE_SERVER
#if defined( OLE_CNTR )
/*************************************************************************
** ContainerDoc Supprt Functions Used by Container versions
*************************************************************************/
/* Paste OLE Link from clipboard */
void ContainerDoc_PasteLinkCommand(LPCONTAINERDOC lpContainerDoc)
{
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
LPDATAOBJECT lpClipboardDataObj = NULL;
BOOL fLink = TRUE;
BOOL fLocalDataObj = FALSE;
BOOL fDisplayAsIcon = FALSE;
SIZEL sizelInSrc;
HCURSOR hPrevCursor;
HGLOBAL hMem = NULL;
HGLOBAL hMetaPict = NULL;
STGMEDIUM medium;
BOOL fStatus;
HRESULT hrErr;
hrErr = OleGetClipboard((LPDATAOBJECT FAR*)&lpClipboardDataObj);
if (hrErr != NOERROR)
return; // Clipboard seems to be empty or can't be accessed
// this may take a while, put up hourglass cursor
hPrevCursor = SetCursor(LoadCursor(NULL, IDC_WAIT));
/* check if the data on the clipboard is local to our application
** instance.
*/
if (lpOutlineApp->m_lpClipboardDoc) {
LPOLEDOC lpOleDoc = (LPOLEDOC)lpOutlineApp->m_lpClipboardDoc;
if (lpClipboardDataObj == (LPDATAOBJECT)&lpOleDoc->m_DataObject)
fLocalDataObj = TRUE;
}
/* NOTE: we need to check what dwDrawAspect is being
** transfered. if the data is an object that is displayed as an
** icon in the source, then we want to keep it as an icon. the
** aspect the object is displayed in at the source is transfered
** via the CF_LINKSOURCEDESCRIPTOR format for a PasteLink
** operation.
*/
if (hMem = OleStdGetData(
lpClipboardDataObj,
(CLIPFORMAT)lpOleApp->m_cfLinkSrcDescriptor,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium)) {
LPOBJECTDESCRIPTOR lpOD = GlobalLock(hMem);
fDisplayAsIcon = (lpOD->dwDrawAspect == DVASPECT_ICON ? TRUE : FALSE);
sizelInSrc = lpOD->sizel; // size of object/picture in source (opt.)
GlobalUnlock(hMem);
ReleaseStgMedium((LPSTGMEDIUM)&medium); // equiv to GlobalFree
if (fDisplayAsIcon) {
hMetaPict = OleStdGetData(
lpClipboardDataObj,
CF_METAFILEPICT,
NULL,
DVASPECT_ICON,
(LPSTGMEDIUM)&medium
);
if (hMetaPict == NULL)
fDisplayAsIcon = FALSE; // give up; failed to get icon MFP
}
}
fStatus = ContainerDoc_PasteFormatFromData(
lpContainerDoc,
(CLIPFORMAT)lpOleApp->m_cfLinkSource,
lpClipboardDataObj,
fLocalDataObj,
fLink,
fDisplayAsIcon,
hMetaPict,
(LPSIZEL)&sizelInSrc
);
if (!fStatus)
OutlineApp_ErrorMessage(g_lpApp, ErrMsgPasting);
if (hMetaPict)
ReleaseStgMedium((LPSTGMEDIUM)&medium); // properly free METAFILEPICT
if (lpClipboardDataObj)
OleStdRelease((LPUNKNOWN)lpClipboardDataObj);
SetCursor(hPrevCursor); // restore original cursor
}
/* ContainerDoc_PasteFormatFromData
** --------------------------------
**
** Paste a particular data format from a IDataObject*. The
** IDataObject* may come from the clipboard (GetClipboard) or from a
** drag/drop operation.
**
** Returns TRUE if data was successfully pasted.
** FALSE if data could not be pasted.
*/
BOOL ContainerDoc_PasteFormatFromData(
LPCONTAINERDOC lpContainerDoc,
CLIPFORMAT cfFormat,
LPDATAOBJECT lpSrcDataObj,
BOOL fLocalDataObj,
BOOL fLink,
BOOL fDisplayAsIcon,
HGLOBAL hMetaPict,
LPSIZEL lpSizelInSrc
)
{
LPLINELIST lpLL = (LPLINELIST)&((LPOUTLINEDOC)lpContainerDoc)->m_LineList;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)g_lpApp;
int nIndex;
int nCount = 0;
HGLOBAL hData;
STGMEDIUM medium;
FORMATETC formatetc;
HRESULT hrErr;
LINERANGE lrSel;
if (LineList_GetCount(lpLL) == 0)
nIndex = -1; // pasting to empty list
else
nIndex=LineList_GetFocusLineIndex(lpLL);
if (fLink) {
/* We should paste a Link to the data */
if (cfFormat != lpOleApp->m_cfLinkSource)
return FALSE; // we only support OLE object type links
nCount = ContainerDoc_PasteOleObject(
lpContainerDoc,
lpSrcDataObj,
OLECREATEFROMDATA_LINK,
cfFormat,
nIndex,
fDisplayAsIcon,
hMetaPict,
lpSizelInSrc
);
return (nCount > 0 ? TRUE : FALSE);
} else {
if (cfFormat == lpContainerApp->m_cfCntrOutl) {
if (fLocalDataObj) {
/* CASE I: IDataObject* is local to our app
**
** if the source of the data is local to our
** application instance, then we can get direct
** access to the original OleDoc object that
** corresponds to the IDataObject* given.
** CF_CNTROUTL data is passed through a LPSTORAGE.
** if we call OleGetData asking for CF_CNTROUTL, we
** will be returned a copy of the existing open pStg
** of the original source document. we can NOT open
** streams and sub-storages again via this pStg
** since it is already open within our same
** application instance. we must copy the data from
** the original OleDoc source document.
*/
LPLINELIST lpSrcLL;
LPOLEDOC lpLocalSrcDoc =
((struct CDocDataObjectImpl FAR*)lpSrcDataObj)->lpOleDoc;
/* copy all lines from SrcDoc to DestDoc. */
lpSrcLL = &((LPOUTLINEDOC)lpLocalSrcDoc)->m_LineList;
nCount = LineList_CopySelToDoc(
lpSrcLL,
NULL,
(LPOUTLINEDOC)lpContainerDoc
);
} else {
/* CASE II: IDataObject* is NOT local to our app
**
** if the source of the data comes from another
** application instance. we can call GetDataHere to
** retrieve the CF_CNTROUTL data. CF_CNTROUTL data
** is passed through a LPSTORAGE. we MUST use
** IDataObject::GetDataHere. calling
** IDataObject::GetData does NOT work because OLE
** currently does NOT support remoting of a callee
** allocated root storage back to the caller. this
** hopefully will be supported in a future version.
** in order to call GetDataHere we must allocate an
** IStorage instance for the callee to write into.
** we will allocate an IStorage docfile that will
** delete-on-release. we could use either a
** memory-based storage or a file-based storage.
*/
LPSTORAGE lpTmpStg = OleStdCreateTempStorage(
FALSE /*fUseMemory*/,
STGM_READWRITE | STGM_TRANSACTED |STGM_SHARE_EXCLUSIVE
);
if (! lpTmpStg)
return FALSE;
formatetc.cfFormat = cfFormat;
formatetc.ptd = NULL;
formatetc.dwAspect = DVASPECT_CONTENT;
formatetc.tymed = TYMED_ISTORAGE;
formatetc.lindex = -1;
medium.tymed = TYMED_ISTORAGE;
medium.u.pstg = lpTmpStg;
medium.pUnkForRelease = NULL;
OLEDBG_BEGIN2("IDataObject::GetDataHere called\r\n")
hrErr = lpSrcDataObj->lpVtbl->GetDataHere(
lpSrcDataObj,
(LPFORMATETC)&formatetc,
(LPSTGMEDIUM)&medium
);
OLEDBG_END2
if (hrErr == NOERROR) {
nCount = ContainerDoc_PasteCntrOutlData(
lpContainerDoc,
lpTmpStg,
nIndex
);
}
OleStdVerifyRelease(
(LPUNKNOWN)lpTmpStg, OLESTR("Temp stg NOT released!\r\n"));
return ((hrErr == NOERROR) ? TRUE : FALSE);
}
} else if (cfFormat == lpOutlineApp->m_cfOutline) {
hData = OleStdGetData(
lpSrcDataObj,
(CLIPFORMAT)lpOutlineApp->m_cfOutline,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium
);
nCount = OutlineDoc_PasteOutlineData(
(LPOUTLINEDOC)lpContainerDoc,
hData,
nIndex
);
// NOTE: we must free data handle by releasing the medium
ReleaseStgMedium((LPSTGMEDIUM)&medium);
} else if (cfFormat == lpOleApp->m_cfEmbedSource ||
cfFormat == lpOleApp->m_cfEmbeddedObject ||
cfFormat == lpOleApp->m_cfFileName) {
/* NOTE: OleCreateFromData API creates an OLE object if
** CF_EMBEDDEDOBJECT, CF_EMBEDSOURCE, or CF_FILENAME are
** available from the source data object. the
** CF_FILENAME case arises when a file is copied to the
** clipboard from the FileManager. if the file has an
** associated class (see GetClassFile API), then an
** object of that class is created. otherwise an OLE 1.0
** Packaged object is created.
*/
nCount = ContainerDoc_PasteOleObject(
lpContainerDoc,
lpSrcDataObj,
OLECREATEFROMDATA_OBJECT,
0, /* N/A -- cfFormat */
nIndex,
fDisplayAsIcon,
hMetaPict,
lpSizelInSrc
);
return (nCount > 0 ? TRUE : FALSE);
} else if (cfFormat == CF_METAFILEPICT
|| cfFormat == CF_DIB
|| cfFormat == CF_BITMAP) {
/* NOTE: OleCreateStaticFromData API creates an static
** OLE object if CF_METAFILEPICT, CF_DIB, or CF_BITMAP is
** CF_EMBEDDEDOBJECT, CF_EMBEDSOURCE, or CF_FILENAME are
** available from the source data object.
*/
nCount = ContainerDoc_PasteOleObject(
lpContainerDoc,
lpSrcDataObj,
OLECREATEFROMDATA_STATIC,
cfFormat,
nIndex,
fDisplayAsIcon,
hMetaPict,
lpSizelInSrc
);
return (nCount > 0 ? TRUE : FALSE);
} else if(cfFormat == CF_TEXT) {
hData = OleStdGetData(
lpSrcDataObj,
CF_TEXT,
NULL,
DVASPECT_CONTENT,
(LPSTGMEDIUM)&medium
);
nCount = OutlineDoc_PasteTextData(
(LPOUTLINEDOC)lpContainerDoc,
hData,
nIndex
);
// NOTE: we must free data handle by releasing the medium
ReleaseStgMedium((LPSTGMEDIUM)&medium);
} else {
return FALSE; // no acceptable format available to paste
}
}
lrSel.m_nStartLine = nIndex + nCount;
lrSel.m_nEndLine = nIndex + 1;
LineList_SetSel(lpLL, &lrSel);
return TRUE;
}
/* ContainerDoc_PasteCntrOutlData
* -------------------------------
*
* Load the lines stored in a lpSrcStg (stored in CF_CNTROUTL format)
* into the document.
*
* Return the number of items added
*/
int ContainerDoc_PasteCntrOutlData(
LPCONTAINERDOC lpDestContainerDoc,
LPSTORAGE lpSrcStg,
int nStartIndex
)
{
int nCount;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)g_lpApp;
LPOUTLINEDOC lpDestOutlineDoc = (LPOUTLINEDOC)lpDestContainerDoc;
LPOUTLINEDOC lpSrcOutlineDoc;
LPLINELIST lpSrcLL;
// create a temp document that will be used to load the lpSrcStg data.
lpSrcOutlineDoc = (LPOUTLINEDOC)OutlineApp_CreateDoc(lpOutlineApp, FALSE);
if ( ! lpSrcOutlineDoc )
return 0;
if (! OutlineDoc_LoadFromStg(lpSrcOutlineDoc, lpSrcStg))
goto error;
/* copy all lines from the SrcDoc to the DestDoc. */
lpSrcLL = &lpSrcOutlineDoc->m_LineList;
nCount = LineList_CopySelToDoc(lpSrcLL, NULL, lpDestOutlineDoc);
if (lpSrcOutlineDoc) // destroy temporary document.
OutlineDoc_Close(lpSrcOutlineDoc, OLECLOSE_NOSAVE);
return nCount;
error:
if (lpSrcOutlineDoc) // destroy temporary document.
OutlineDoc_Close(lpSrcOutlineDoc, OLECLOSE_NOSAVE);
return 0;
}
/* ContainerDoc_QueryPasteFromData
** -------------------------------
**
** Check if the IDataObject* offers data in a format that we can
** paste. The IDataObject* may come from the clipboard
** (GetClipboard) or from a drag/drop operation.
** In this function we look if one of the following formats is
** offered:
** CF_OUTLINE
** <OLE object -- CF_EMBEDSOURCE or CF_EMBEDDEDOBJECT>
** CF_TEXT
**
** NOTE: fLink is specified and CF_LINKSOURCE is available then TRUE
** is returned, else FALSE.
**
** Returns TRUE if paste can be performed
** FALSE if paste is not possible.
*/
BOOL ContainerDoc_QueryPasteFromData(
LPCONTAINERDOC lpContainerDoc,
LPDATAOBJECT lpSrcDataObj,
BOOL fLink
)
{
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
if (fLink) {
/* check if we can paste a Link to the data */
if (OleQueryLinkFromData(lpSrcDataObj) != NOERROR)
return FALSE; // linking is NOT possible
} else {
int nFmtEtc;
nFmtEtc = OleStdGetPriorityClipboardFormat(
lpSrcDataObj,
lpOleApp->m_arrPasteEntries,
lpOleApp->m_nPasteEntries
);
if (nFmtEtc < 0)
return FALSE; // there is no format we like
}
return TRUE;
}
/* ContainerDoc_PasteOleObject
** ---------------------------
**
** Embed or link an OLE object. the source of the data is a pointer
** to an IDataObject. normally this lpSrcDataObj comes from the
** clipboard after call OleGetClipboard.
**
** dwCreateType controls what type of object will created:
** OLECREATEFROMDATA_LINK -- OleCreateLinkFromData will be called
** OLECREATEFROMDATA_OBJECT -- OleCreateFromData will be called
** OLECREATEFROMDATA_STATIC -- OleCreateStaticFromData will be called
** cfFormat controls the type of static
** a CONTAINERLINE object is created to manage the OLE object. this
** CONTAINERLINE is added to the ContainerDoc after line nIndex.
**
*/
int ContainerDoc_PasteOleObject(
LPCONTAINERDOC lpContainerDoc,
LPDATAOBJECT lpSrcDataObj,
DWORD dwCreateType,
CLIPFORMAT cfFormat,
int nIndex,
BOOL fDisplayAsIcon,
HGLOBAL hMetaPict,
LPSIZEL lpSizelInSrc
)
{
LPLINELIST lpLL = &((LPOUTLINEDOC)lpContainerDoc)->m_LineList;
LPLINE lpLine = NULL;
HDC hDC;
int nTab = 0;
OLECHAR szStgName[CWCSTORAGENAME];
LPCONTAINERLINE lpContainerLine = NULL;
ContainerDoc_GetNextStgName(lpContainerDoc, szStgName, CWCSTORAGENAME);
/* default the new line to have the same indent as previous line */
lpLine = LineList_GetLine(lpLL, nIndex);
if (lpLine)
nTab = Line_GetTabLevel(lpLine);
hDC = LineList_GetDC(lpLL);
lpContainerLine = ContainerLine_CreateFromData(
hDC,
nTab,
lpContainerDoc,
lpSrcDataObj,
dwCreateType,
cfFormat,
fDisplayAsIcon,
hMetaPict,
szStgName
);
LineList_ReleaseDC(lpLL, hDC);
if (! lpContainerLine)
goto error;
/* add a ContainerLine object to the document's LineList. The
** ContainerLine manages the rectangle on the screen occupied by
** the OLE object. later when the app is updated to support
** extended layout, there could be more than one Line associated
** with the OLE object.
*/
LineList_AddLine(lpLL, (LPLINE)lpContainerLine, nIndex);
/* NOTE: if the source of the OLE object just pasted, passed a
** non-zero sizel in the ObjectDescriptor, then we will try to
** keep the object the same size as it is in the source. this
** may be a scaled size if the object had been resized in the
** source container. if the source did not give a valid sizel,
** then we will retrieve the size of the object by calling
** IViewObject2::GetExtent.
*/
if (lpSizelInSrc && (lpSizelInSrc->cx != 0 || lpSizelInSrc->cy != 0)) {
ContainerLine_UpdateExtent(lpContainerLine, lpSizelInSrc);
} else
ContainerLine_UpdateExtent(lpContainerLine, NULL);
OutlineDoc_SetModified((LPOUTLINEDOC)lpContainerDoc, TRUE, TRUE, TRUE);
return 1; // one line added to LineList
error:
// NOTE: if ContainerLine_CreateFromClip failed
OutlineApp_ErrorMessage(g_lpApp, OLESTR("Paste Object failed!"));
return 0; // no lines added to line list
}
/* ContainerDoc_GetData
* --------------------
*
* Render data from the document on a CALLEE allocated STGMEDIUM.
* This routine is called via IDataObject::GetData.
*/
HRESULT ContainerDoc_GetData (
LPCONTAINERDOC lpContainerDoc,
LPFORMATETC lpformatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpContainerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpContainerDoc;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpContainerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpContainerApp;
HRESULT hrErr;
SCODE sc;
// NOTE: we must set out pointer parameters to NULL
lpMedium->pUnkForRelease = NULL;
/* NOTE: we must set all out pointer parameters to NULL. */
lpMedium->tymed = TYMED_NULL;
lpMedium->pUnkForRelease = NULL; // we transfer ownership to caller
lpMedium->u.hGlobal = NULL;
if (lpformatetc->cfFormat == lpContainerApp->m_cfCntrOutl) {
/* NOTE: currently OLE does NOT support remoting a root
** level IStorage (either memory or file based) as an OUT
** parameter. thus, we can NOT support GetData for this
** TYMED_ISTORAGE based format. the caller MUST call GetDataHere.
*/
sc = DV_E_FORMATETC;
goto error;
} else if (!lpContainerDoc->m_fEmbeddedObjectAvail &&
lpformatetc->cfFormat == lpOutlineApp->m_cfOutline) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OutlineDoc_GetOutlineData(lpOutlineDoc, NULL);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
OleDbgOut3("ContainerDoc_GetData: rendered CF_OUTLINE\r\n");
return NOERROR;
} else if (!lpContainerDoc->m_fEmbeddedObjectAvail &&
lpformatetc->cfFormat == CF_TEXT) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OutlineDoc_GetTextData (
(LPOUTLINEDOC)lpContainerDoc,
NULL
);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
OleDbgOut3("ContainerDoc_GetData: rendered CF_TEXT\r\n");
return NOERROR;
} else if ( lpformatetc->cfFormat == lpOleApp->m_cfObjectDescriptor ||
(lpformatetc->cfFormat == lpOleApp->m_cfLinkSrcDescriptor &&
lpOleDoc->m_fLinkSourceAvail) ) {
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_HGLOBAL)) {
sc = DV_E_FORMATETC;
goto error;
}
lpMedium->u.hGlobal = OleDoc_GetObjectDescriptorData (
(LPOLEDOC)lpContainerDoc,
NULL
);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_HGLOBAL;
#if defined( _DEBUG )
if (lpformatetc->cfFormat == lpOleApp->m_cfObjectDescriptor)
OleDbgOut3(
"ContainerDoc_GetData: rendered CF_OBJECTDESCRIPTOR\r\n");
else
OleDbgOut3(
"ContainerDoc_GetData: rendered CF_LINKSRCDESCRIPTOR\r\n");
#endif
return NOERROR;
} else if (lpContainerDoc->m_fEmbeddedObjectAvail) {
/* NOTE: if this document contains a single OLE object
** (ie. cfEmbeddedObject data format is available), then
** the formats offered via our IDataObject must include
** the formats available from the OLE object itself.
** thus, we delegate this call to the IDataObject* of the
** OLE object.
*/
if (lpformatetc->cfFormat == lpOleApp->m_cfEmbeddedObject) {
LPPERSISTSTORAGE lpPersistStg =
(LPPERSISTSTORAGE)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IPersistStorage,
NULL
);
if (! lpPersistStg)
return DV_E_FORMATETC;
/* render CF_EMBEDDEDOBJECT by asking the object to save
** into a temporary, DELETEONRELEASE pStg allocated by us.
*/
hrErr = OleStdGetOleObjectData(
lpPersistStg,
lpformatetc,
lpMedium,
FALSE /* fUseMemory -- (use file-base stg) */
);
OleStdRelease((LPUNKNOWN)lpPersistStg);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ContainerDoc_GetData: rendered CF_EMBEDDEDOBJECT\r\n");
return hrErr;
} else if (lpformatetc->cfFormat == CF_METAFILEPICT) {
/* NOTE: as a container which draws objects, when a single
** OLE object is copied, we can give the Metafile picture of
** the object.
*/
LPCONTAINERLINE lpContainerLine;
LPOLEOBJECT lpOleObj;
SIZEL sizelOleObject;
// Verify caller asked for correct medium
if (!(lpformatetc->tymed & TYMED_MFPICT)) {
sc = DV_E_FORMATETC;
goto error;
}
lpOleObj = (LPOLEOBJECT)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IOleObject,
(LPCONTAINERLINE FAR*)&lpContainerLine
);
if (! lpOleObj) {
sc = E_OUTOFMEMORY; // could not load object
goto error;
}
if (lpformatetc->dwAspect & lpContainerLine->m_dwDrawAspect) {
LPLINE lpLine = (LPLINE)lpContainerLine;
/* render CF_METAFILEPICT by drawing the object into
** a metafile DC
*/
/* NOTE: Get size that object is being drawn. If the
** object has been scaled because the user resized the
** object, then we want to render a metafile with the
** scaled size.
*/
sizelOleObject.cx = lpLine->m_nWidthInHimetric;
sizelOleObject.cy = lpLine->m_nHeightInHimetric;
lpMedium->u.hGlobal = OleStdGetMetafilePictFromOleObject(
lpOleObj,
lpContainerLine->m_dwDrawAspect,
(LPSIZEL)&sizelOleObject,
lpformatetc->ptd
);
OleStdRelease((LPUNKNOWN)lpOleObj);
if (! lpMedium->u.hGlobal) {
sc = E_OUTOFMEMORY;
goto error;
}
lpMedium->tymed = TYMED_MFPICT;
OleDbgOut3("ContainerDoc_GetData: rendered CF_METAFILEPICT\r\n");
return NOERROR;
} else {
// improper aspect requested
OleStdRelease((LPUNKNOWN)lpOleObj);
return DV_E_FORMATETC;
}
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource) {
if (lpOleDoc->m_fLinkSourceAvail) {
LPMONIKER lpmk;
lpmk = ContainerLine_GetFullMoniker(
lpContainerDoc->m_lpSrcContainerLine,
GETMONIKER_FORCEASSIGN
);
if (lpmk) {
hrErr = OleStdGetLinkSourceData(
lpmk,
&lpContainerDoc->m_clsidOleObjCopied,
lpformatetc,
lpMedium
);
OleStdRelease((LPUNKNOWN)lpmk);
if (hrErr != NOERROR) {
sc = hrErr;
goto error;
}
OleDbgOut3("ContainerDoc_GetData: rendered CF_LINKSOURCE\r\n");
return hrErr;
} else {
sc = DV_E_FORMATETC;
goto error;
}
} else {
sc = DV_E_FORMATETC;
goto error;
}
}
#if defined( OPTIONAL_ADVANCED_DATA_TRANSFER )
/* NOTE: optionally, a container that wants to have a
** potentially richer data transfer, can enumerate the data
** formats from the OLE object's cache and offer them too. if
** the object has a special handler, then it might be able to
** render additional data formats. in this case, the
** container must delegate the GetData call to the object if
** it does not directly support the format.
**
** CNTROUTL does NOT enumerate the cache; it implements the
** simpler strategy of offering a static list of formats.
** thus the delegation is NOT required.
*/
else {
/* NOTE: we delegate this call to the IDataObject* of the
** OLE object.
*/
LPDATAOBJECT lpDataObj;
lpDataObj = (LPDATAOBJECT)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IDataObject,
NULL
);
if (! lpDataObj) {
sc = DV_E_FORMATETC;
goto error;
}
OLEDBG_BEGIN2("ContainerDoc_GetData: delegate to OLE obj\r\n")
hrErr=lpDataObj->lpVtbl->GetData(lpDataObj,lpformatetc,lpMedium);
OLEDBG_END2
OleStdRelease((LPUNKNOWN)lpDataObj);
return hrErr;
}
#endif // ! OPTIONAL_ADVANCED_DATA_TRANSFER
}
// if we get here then we do NOT support the requested format
sc = DV_E_FORMATETC;
error:
return sc;
}
/* ContainerDoc_GetDataHere
* ------------------------
*
* Render data from the document on a CALLER allocated STGMEDIUM.
* This routine is called via IDataObject::GetDataHere.
*/
HRESULT ContainerDoc_GetDataHere (
LPCONTAINERDOC lpContainerDoc,
LPFORMATETC lpformatetc,
LPSTGMEDIUM lpMedium
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpContainerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpContainerDoc;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpContainerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpContainerApp;
HRESULT hrErr;
// NOTE: lpMedium is an IN parameter. we should NOT set
// lpMedium->pUnkForRelease to NULL
// we only support IStorage medium
if (lpformatetc->cfFormat == lpContainerApp->m_cfCntrOutl) {
if (!(lpformatetc->tymed & TYMED_ISTORAGE))
return DV_E_FORMATETC;
if (lpMedium->tymed == TYMED_ISTORAGE) {
/* Caller has allocated the storage. we must copy all of our
** data into his storage.
*/
/* NOTE: we must be sure to write our class ID into our
** storage. this information is used by OLE to determine the
** class of the data stored in our storage.
*/
if((hrErr=WriteClassStg(lpMedium->u.pstg,&CLSID_APP)) != NOERROR)
return hrErr;
OutlineDoc_SaveSelToStg(
(LPOUTLINEDOC)lpContainerDoc,
NULL, /* entire doc */
lpContainerApp->m_cfCntrOutl,
lpMedium->u.pstg,
FALSE, /* fSameAsLoad */
FALSE /* fRemember */
);
OleStdCommitStorage(lpMedium->u.pstg);
OleDbgOut3("ContainerDoc_GetDataHere: rendered CF_CNTROUTL\r\n");
return NOERROR;
} else {
// we only support IStorage medium
return DV_E_FORMATETC;
}
} else if (lpContainerDoc->m_fEmbeddedObjectAvail) {
/* NOTE: if this document contains a single OLE object
** (ie. cfEmbeddedObject data format is available), then
** the formats offered via our IDataObject must include
** CF_EMBEDDEDOBJECT and the formats available from the OLE
** object itself.
*/
if (lpformatetc->cfFormat == lpOleApp->m_cfEmbeddedObject) {
LPPERSISTSTORAGE lpPersistStg =
(LPPERSISTSTORAGE)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IPersistStorage,
NULL
);
if (! lpPersistStg) {
return E_OUTOFMEMORY;
}
/* render CF_EMBEDDEDOBJECT by asking the object to save
** into the IStorage allocated by the caller.
*/
hrErr = OleStdGetOleObjectData(
lpPersistStg,
lpformatetc,
lpMedium,
FALSE /* fUseMemory -- N/A */
);
OleStdRelease((LPUNKNOWN)lpPersistStg);
if (hrErr != NOERROR) {
return hrErr;
}
OleDbgOut3("ContainerDoc_GetDataHere: rendered CF_EMBEDDEDOBJECT\r\n");
return hrErr;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource) {
if (lpOleDoc->m_fLinkSourceAvail) {
LPMONIKER lpmk;
lpmk = ContainerLine_GetFullMoniker(
lpContainerDoc->m_lpSrcContainerLine,
GETMONIKER_FORCEASSIGN
);
if (lpmk) {
hrErr = OleStdGetLinkSourceData(
lpmk,
&lpContainerDoc->m_clsidOleObjCopied,
lpformatetc,
lpMedium
);
OleStdRelease((LPUNKNOWN)lpmk);
OleDbgOut3("ContainerDoc_GetDataHere: rendered CF_LINKSOURCE\r\n");
return hrErr;
} else {
return E_FAIL;
}
} else {
return DV_E_FORMATETC;
}
} else {
#if !defined( OPTIONAL_ADVANCED_DATA_TRANSFER )
return DV_E_FORMATETC;
#endif
#if defined( OPTIONAL_ADVANCED_DATA_TRANSFER )
/* NOTE: optionally, a container that wants to have a
** potentially richer data transfer, can enumerate the data
** formats from the OLE object's cache and offer them too. if
** the object has a special handler, then it might be able to
** render additional data formats. in this case, the
** container must delegate the GetData call to the object if
** it does not directly support the format.
**
** CNTROUTL does NOT enumerate the cache; it implements the
** simpler strategy of offering a static list of formats.
** thus the delegation is NOT required.
*/
/* NOTE: we delegate this call to the IDataObject* of the
** OLE object.
*/
LPDATAOBJECT lpDataObj;
lpDataObj = (LPDATAOBJECT)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IDataObject,
NULL
);
if (! lpDataObj)
return DV_E_FORMATETC;
OLEDBG_BEGIN2("ContainerDoc_GetDataHere: delegate to OLE obj\r\n")
hrErr = lpDataObj->lpVtbl->GetDataHere(
lpDataObj,
lpformatetc,
lpMedium
);
OLEDBG_END2
OleStdRelease((LPUNKNOWN)lpDataObj);
return hrErr;
#endif // OPTIONAL_ADVANCED_DATA_TRANSFER
}
} else {
return DV_E_FORMATETC;
}
}
/* ContainerDoc_QueryGetData
* -------------------------
*
* Answer if a particular data format is supported via GetData/GetDataHere.
* This routine is called via IDataObject::QueryGetData.
*/
HRESULT ContainerDoc_QueryGetData (
LPCONTAINERDOC lpContainerDoc,
LPFORMATETC lpformatetc
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpContainerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpContainerDoc;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)g_lpApp;
LPOLEAPP lpOleApp = (LPOLEAPP)lpContainerApp;
LPOUTLINEAPP lpOutlineApp = (LPOUTLINEAPP)lpContainerApp;
LPDATAOBJECT lpDataObj = NULL;
LPCONTAINERLINE lpContainerLine = NULL;
SCODE sc;
HRESULT hrErr;
if (lpContainerDoc->m_fEmbeddedObjectAvail) {
lpDataObj = (LPDATAOBJECT)ContainerDoc_GetSingleOleObject(
lpContainerDoc,
&IID_IDataObject,
(LPCONTAINERLINE FAR*)&lpContainerLine
);
}
/* Caller is querying if we support certain format but does not
** want any data actually returned.
*/
if (lpformatetc->cfFormat == lpContainerApp->m_cfCntrOutl) {
// we only support ISTORAGE medium
sc = OleStdQueryFormatMedium(lpformatetc, TYMED_ISTORAGE) ;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfEmbeddedObject &&
lpContainerDoc->m_fEmbeddedObjectAvail ) {
sc = OleStdQueryOleObjectData(lpformatetc) ;
} else if (lpformatetc->cfFormat == lpOleApp->m_cfLinkSource &&
lpOleDoc->m_fLinkSourceAvail) {
sc = OleStdQueryLinkSourceData(lpformatetc) ;
// CF_TEXT and CF_OUTLINE are NOT supported when single object is copied
} else if (!lpContainerDoc->m_fEmbeddedObjectAvail &&
(lpformatetc->cfFormat == (lpOutlineApp)->m_cfOutline ||
lpformatetc->cfFormat == CF_TEXT) ) {
// we only support HGLOBAL medium
sc = OleStdQueryFormatMedium(lpformatetc, TYMED_HGLOBAL) ;
} else if ( lpformatetc->cfFormat == lpOleApp->m_cfObjectDescriptor ||
(lpformatetc->cfFormat == lpOleApp->m_cfLinkSrcDescriptor &&
lpOleDoc->m_fLinkSourceAvail) ) {
sc = OleStdQueryObjectDescriptorData(lpformatetc) ;
} else if (lpformatetc->cfFormat == CF_METAFILEPICT &&
lpContainerDoc->m_fEmbeddedObjectAvail && lpContainerLine &&
(lpformatetc->dwAspect & lpContainerLine->m_dwDrawAspect)) {
/* NOTE: as a container which draws objects, when a single
** OLE object is copied, we can give the Metafile picture of
** the object.
*/
// we only support MFPICT medium
sc = OleStdQueryFormatMedium(lpformatetc, TYMED_MFPICT) ;
} else if (lpDataObj) {
/* NOTE: if this document contains a single OLE object
** (ie. cfEmbeddedObject data format is available), then
** the formats offered via our IDataObject must include
** the formats available from the OLE object itself.
** thus we delegate this call to the IDataObject* of the
** OLE object.
*/
OLEDBG_BEGIN2("ContainerDoc_QueryGetData: delegate to OLE obj\r\n")
hrErr = lpDataObj->lpVtbl->QueryGetData(lpDataObj, lpformatetc);
OLEDBG_END2
sc = hrErr;
} else {
sc = DV_E_FORMATETC;
}
if (lpDataObj)
OleStdRelease((LPUNKNOWN)lpDataObj);
return sc;
}
/* ContainerDoc_SetData
* --------------------
*
* Set (modify) data of the document.
* This routine is called via IDataObject::SetData.
*/
HRESULT ContainerDoc_SetData (
LPCONTAINERDOC lpContainerDoc,
LPFORMATETC lpformatetc,
LPSTGMEDIUM lpmedium,
BOOL fRelease
)
{
/* in the container version of Outline, only DataTransferDoc's support
** IDataObject interface; the user documents do not support
** IDataObject. DataTransferDoc's do not accept SetData calls.
*/
return DV_E_FORMATETC;
}
/* ContainerDoc_EnumFormatEtc
* --------------------------
*
* Return an enumerator which enumerates the data accepted/offered by
* the document.
* This routine is called via IDataObject::SetData.
*/
HRESULT ContainerDoc_EnumFormatEtc(
LPCONTAINERDOC lpContainerDoc,
DWORD dwDirection,
LPENUMFORMATETC FAR* lplpenumFormatEtc
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpContainerDoc;
LPOUTLINEDOC lpOutlineDoc = (LPOUTLINEDOC)lpContainerDoc;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)lpOleApp;
int nActualFmts;
int i;
SCODE sc = S_OK;
/* the Container-Only version of Outline does NOT offer
** IDataObject interface from its User documents.
*/
if (! lpOutlineDoc->m_fDataTransferDoc)
return E_FAIL;
if (dwDirection == DATADIR_GET) {
if (lpContainerDoc->m_fEmbeddedObjectAvail) {
/* NOTE: if this document contains a single OLE object
** (ie. cfEmbeddedObject data format is available), then
** the formats offered via our enumerator must include
** the formats available from the OLE object itself. we
** have previously set up a special array of FORMATETC's
** in OutlineDoc_CreateDataTransferDoc routine which includes
** the combination of data we offer directly and data
** offered by the OLE object.
*/
/* If the document does not have a Moniker, then exclude
** CF_LINKSOURCE CF_LINKSRCDESCRIPTOR from the list of
** formats available. these formats are deliberately
** listed last in the array of possible "Get" formats.
*/
nActualFmts = lpContainerApp->m_nSingleObjGetFmts;
if (! lpOleDoc->m_fLinkSourceAvail)
nActualFmts -= 2;
// set correct dwDrawAspect for METAFILEPICT of object copied
for (i = 0; i < nActualFmts; i++) {
if (lpContainerApp->m_arrSingleObjGetFmts[i].cfFormat ==
CF_METAFILEPICT) {
lpContainerApp->m_arrSingleObjGetFmts[i].dwAspect =
lpContainerDoc->m_dwAspectOleObjCopied;
break; // DONE
}
}
*lplpenumFormatEtc = OleStdEnumFmtEtc_Create(
nActualFmts, lpContainerApp->m_arrSingleObjGetFmts);
if (*lplpenumFormatEtc == NULL)
sc = E_OUTOFMEMORY;
} else {
/* This document does NOT offer cfEmbeddedObject,
** therefore we can simply enumerate the
** static list of formats that we handle directly.
*/
*lplpenumFormatEtc = OleStdEnumFmtEtc_Create(
lpOleApp->m_nDocGetFmts, lpOleApp->m_arrDocGetFmts);
if (*lplpenumFormatEtc == NULL)
sc = E_OUTOFMEMORY;
}
} else if (dwDirection == DATADIR_SET) {
/* NOTE: a document that is used to transfer data
** (either via the clipboard or drag/drop does NOT
** accept SetData on ANY format!
*/
sc = E_NOTIMPL;
} else {
sc = E_NOTIMPL;
}
return sc;
}
#if defined( OPTIONAL_ADVANCED_DATA_TRANSFER )
/* NOTE: optionally, a container that wants to have a
** potentially richer data transfer, can enumerate the data
** formats from the OLE object's cache and offer them too. if
** the object has a special handler, then it might be able to
** render additional data formats.
**
** CNTROUTL does NOT enumerate the cache; it implements the simpler
** strategy of offering a static list of formats. the following
** function is included in order to illustrates how enumerating the
** cache could be done. CNTROUTL does NOT call this function.
**
*/
/* ContainerDoc_SetupDocGetFmts
** ----------------------------
** Setup the combined list of formats that this data transfer
** ContainerDoc which contains a single OLE object should offer.
**
** NOTE: The list of formats that should be offered when a
** single OLE object is being transfered include the following:
** * any formats the container app wants to give
** * CF_EMBEDDEDOBJECT
** * CF_METAFILEPICT
** * any formats that the OLE object's cache can offer directly
**
** We will offer the following formats in the order given:
** 1. CF_CNTROUTL
** 2. CF_EMBEDDEDOBJECT
** 3. CF_OBJECTDESCRIPTOR
** 4. CF_METAFILEPICT
** 5. <data formats from OLE object's cache>
** 6. CF_LINKSOURCE
** 7. CF_LINKSRCDESCRIPTOR
*/
BOOL ContainerDoc_SetupDocGetFmts(
LPCONTAINERDOC lpContainerDoc,
LPCONTAINERLINE lpContainerLine
)
{
LPOLEDOC lpOleDoc = (LPOLEDOC)lpContainerDoc;
LPOLEAPP lpOleApp = (LPOLEAPP)g_lpApp;
LPCONTAINERAPP lpContainerApp = (LPCONTAINERAPP)g_lpApp;
LPOLECACHE lpOleCache;
HRESULT hrErr;
STATDATA StatData;
LPENUMSTATDATA lpEnumStatData = NULL;
LPFORMATETC lparrDocGetFmts = NULL;
UINT nOleObjFmts = 0;
UINT nTotalFmts;
UINT i;
UINT iFmt;
lpOleCache = (LPOLECACHE)OleStdQueryInterface(
(LPUNKNOWN)lpContainerLine->m_lpOleObj,
&IID_IOleCache
);
if (lpOleCache) {
OLEDBG_BEGIN2("IOleCache::EnumCache called\r\n")
hrErr = lpOleCache->lpVtbl->EnumCache(
lpOleCache,
(LPENUMSTATDATA FAR*)&lpEnumStatData
);
OLEDBG_END2
}
if (lpEnumStatData) {
/* Cache enumerator is available. count the number of
** formats that the OLE object's cache offers.
*/
while(lpEnumStatData->lpVtbl->Next(
lpEnumStatData,
1,
(LPSTATDATA)&StatData,
NULL) == NOERROR) {
nOleObjFmts++;
// NOTE: we MUST free the TargetDevice
OleStdFree(StatData.formatetc.ptd);
}
lpEnumStatData->lpVtbl->Reset(lpEnumStatData); // reset for next loop
}
/* NOTE: the maximum total number of formats that our IDataObject
** could offer equals the sum of the following:
** n offered by the OLE object's cache
** + n normally offered by our app
** + 1 CF_EMBEDDEDOBJECT
** + 1 CF_METAFILEPICT
** + 1 CF_LINKSOURCE
** + 1 CF_LINKSRCDESCRIPTOR
** the actual number of formats that we can offer could be less
** than this total if there is any clash between the formats
** that we offer directly and those offered by the cache. if
** there is a clash, the container's rendering overrides that of
** the object. eg.: as a container transfering an OLE object we
** should directly offer CF_METAFILEPICT to guarantee that this
** format is always available. thus, if the cache offers
** CF_METAFILEPICT then it is skipped.
*/
nTotalFmts = nOleObjFmts + lpOleApp->m_nDocGetFmts + 4;
lparrDocGetFmts = (LPFORMATETC)New (nTotalFmts * sizeof(FORMATETC));
OleDbgAssertSz(lparrDocGetFmts != NULL,"Error allocating arrDocGetFmts");
if (lparrDocGetFmts == NULL)
return FALSE;
for (i = 0, iFmt = 0; i < lpOleApp->m_nDocGetFmts; i++) {
_fmemcpy((LPFORMATETC)&lparrDocGetFmts[iFmt++],
(LPFORMATETC)&lpOleApp->m_arrDocGetFmts[i],
sizeof(FORMATETC)
);
if (lpOleApp->m_arrDocGetFmts[i].cfFormat ==
lpContainerApp->m_cfCntrOutl) {
/* insert CF_EMBEDDEDOBJECT, CF_METAFILEPICT, and formats
** available from the OLE object's cache following
** CF_CNTROUTL.
*/
lparrDocGetFmts[iFmt].cfFormat = lpOleApp->m_cfEmbeddedObject;
lparrDocGetFmts[iFmt].ptd = NULL;
lparrDocGetFmts[iFmt].dwAspect = DVASPECT_CONTENT;
lparrDocGetFmts[iFmt].tymed = TYMED_ISTORAGE;
lparrDocGetFmts[iFmt].lindex = -1;
iFmt++;
lparrDocGetFmts[iFmt].cfFormat = CF_METAFILEPICT;
lparrDocGetFmts[iFmt].ptd = NULL;
lparrDocGetFmts[iFmt].dwAspect = lpContainerLine->m_dwDrawAspect;
lparrDocGetFmts[iFmt].tymed = TYMED_MFPICT;
lparrDocGetFmts[iFmt].lindex = -1;
iFmt++;
if (lpEnumStatData) {
/* Cache enumerator is available. enumerate all of
** the formats that the OLE object's cache offers.
*/
while(lpEnumStatData->lpVtbl->Next(
lpEnumStatData,
1,
(LPSTATDATA)&StatData,
NULL) == NOERROR) {
/* check if the format clashes with one of our fmts */
if (StatData.formatetc.cfFormat != CF_METAFILEPICT
&& ! OleStdIsDuplicateFormat(
(LPFORMATETC)&StatData.formatetc,
lpOleApp->m_arrDocGetFmts,
lpOleApp->m_nDocGetFmts)) {
OleStdCopyFormatEtc(
&(lparrDocGetFmts[iFmt]),&StatData.formatetc);
iFmt++;
}
// NOTE: we MUST free the TargetDevice
OleStdFree(StatData.formatetc.ptd);
}
}
}
}
if (lpOleCache)
OleStdRelease((LPUNKNOWN)lpOleCache);
/* append CF_LINKSOURCE format */
lparrDocGetFmts[iFmt].cfFormat = lpOleApp->m_cfLinkSource;
lparrDocGetFmts[iFmt].ptd = NULL;
lparrDocGetFmts[iFmt].dwAspect = DVASPECT_CONTENT;
lparrDocGetFmts[iFmt].tymed = TYMED_ISTREAM;
lparrDocGetFmts[iFmt].lindex = -1;
iFmt++;
/* append CF_LINKSRCDESCRIPTOR format */
lparrDocGetFmts[iFmt].cfFormat = lpOleApp->m_cfLinkSrcDescriptor;
lparrDocGetFmts[iFmt].ptd = NULL;
lparrDocGetFmts[iFmt].dwAspect = DVASPECT_CONTENT;
lparrDocGetFmts[iFmt].tymed = TYMED_HGLOBAL;
lparrDocGetFmts[iFmt].lindex = -1;
iFmt++;
lpContainerDoc->m_lparrDocGetFmts = lparrDocGetFmts;
lpContainerDoc->m_nDocGetFmts = iFmt;
if (lpEnumStatData)
OleStdVerifyRelease(
(LPUNKNOWN)lpEnumStatData,
"Cache enumerator not released properly"
);
return TRUE;
}
#endif // OPTIONAL_ADVANCED_DATA_TRANSFER
#endif // OLE_CNTR