windows-nt/Source/XPSP1/NT/base/mvdm/wow16/ole/client/mf.c

646 lines
16 KiB
C
Raw Permalink Normal View History

2020-09-26 03:20:57 -05:00
/****************************** Module Header ******************************\
* Module Name:MF.C (Extensible Compound Documents - Metafile)
*
* PURPOSE:Handles all API routines for the metafile sub-dll of the ole dll.
*
* Created: 1990
*
* Copyright (c) 1990, 1991 Microsoft Corporation
*
* History:
*
* Raor, Srinik (../../1990,91) Designed, coded
*
\***************************************************************************/
#include <windows.h>
#include "dll.h"
#include "pict.h"
WORD wGDIds = NULL;
OLESTATUS FARINTERNAL wCreateDummyMetaFile (LPOBJECT_MF, int, int);
#pragma alloc_text(_TEXT, MfSaveToStream, MfLoadFromStream, GetBytes, PutBytes, PutStrWithLen, MfQueryBounds, OleIsDcMeta, GetGDIds, IsMetaDC)
OLEOBJECTVTBL vtblMF = {
ErrQueryProtocol, // check whether the speced protocol is supported
MfRelease, // Release
ErrShow, // show
ErrPlay, // play
MfGetData, // Get the object data
ErrSetData, // Set the object data
ErrSetTargetDevice,//
ErrSetBounds, // set viewport bounds
MfEnumFormat, // enumerate supported formats
ErrSetColorScheme, //
MfRelease, // delete
ErrSetHostNames, //
MfSaveToStream, // write to file
MfClone, // clone object
ErrCopyFromLink, // Create embedded from Lnk
MfEqual, // compares the given objects for data equality
MfCopy, // copy to clip
MfDraw, // draw the object
ErrActivate, // open
ErrExecute, // excute
ErrClose, // stop
ErrUpdate, // Update
ErrReconnect, // Reconnect
ErrObjectConvert, // convert object to specified type
ErrGetUpdateOptions, // update options
ErrSetUpdateOptions, // update options
ObjRename, // Change Object name
ObjQueryName, // Get current object name
ObjQueryType, // Object type
MfQueryBounds, // QueryBounds
ObjQuerySize, // Find the size of the object
ErrQueryOpen, // Query open
ErrQueryOutOfDate, // query whether object is current
ErrQueryRelease, // release related stuff
ErrQueryRelease,
ErrQueryRelease,
ErrRequestData, // requestdata
ErrObjectLong, // objectLong
MfChangeData // change data of the existing object
};
OLESTATUS FARINTERNAL MfRelease (lpobj)
LPOBJECT_MF lpobj;
{
HOBJECT hobj;
if (lpobj->mfp.hMF) {
DeleteMetaFile (lpobj->mfp.hMF);
lpobj->mfp.hMF = NULL;
}
if (lpobj->hmfp)
GlobalFree (lpobj->hmfp);
if (lpobj->head.lhclientdoc)
DocDeleteObject ((LPOLEOBJECT)lpobj);
if (hobj = lpobj->head.hobj) {
lpobj->head.hobj = NULL;
GlobalUnlock (hobj);
GlobalFree (hobj);
}
return OLE_OK;
}
OLESTATUS FARINTERNAL MfSaveToStream (lpobj, lpstream)
LPOBJECT_MF lpobj;
LPOLESTREAM lpstream;
{
OLESTATUS retVal = OLE_ERROR_STREAM;
HANDLE hBits;
LPSTR lpBits;
if (!lpobj->mfp.hMF)
return OLE_ERROR_BLANK;
if (PutBytes (lpstream, (LPSTR) &dwVerToFile, sizeof(LONG)))
return OLE_ERROR_STREAM;
if (PutBytes (lpstream, (LPSTR) &lpobj->head.ctype, sizeof(LONG)))
return OLE_ERROR_STREAM;
if (PutStrWithLen(lpstream, (LPSTR)"METAFILEPICT"))
return OLE_ERROR_STREAM;
if (PutBytes (lpstream, (LPSTR) &lpobj->head.cx, sizeof(LONG)))
return OLE_ERROR_STREAM;
if (PutBytes (lpstream, (LPSTR) &lpobj->head.cy, sizeof(LONG)))
return OLE_ERROR_STREAM;
if (PutBytes (lpstream, (LPSTR) &lpobj->sizeBytes, sizeof(LONG)))
return OLE_ERROR_STREAM;
if (!(hBits = GetMetaFileBits (lpobj->mfp.hMF)))
return OLE_ERROR_MEMORY;
if (lpBits = (LPSTR) GlobalLock (hBits)) {
if (!PutBytes (lpstream, (LPSTR)&lpobj->mfp, sizeof(METAFILEPICT)))
if (!PutBytes (lpstream, (LPSTR)lpBits,
lpobj->sizeBytes - sizeof(METAFILEPICT)))
retVal = OLE_OK;
GlobalUnlock(hBits);
}
else
retVal = OLE_ERROR_MEMORY;
lpobj->mfp.hMF = SetMetaFileBits (hBits);
return retVal;
}
OLESTATUS FARINTERNAL MfClone (lpobjsrc, lpclient, lhclientdoc, lpobjname, lplpobj)
LPOBJECT_MF lpobjsrc;
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOBJECT_MF FAR * lplpobj;
{
LPOBJECT_MF lpobjMf;
HANDLE hmf;
*lplpobj = NULL;
if (!CheckClientDoc ((LPCLIENTDOC) lhclientdoc))
return OLE_ERROR_HANDLE;
if (!(hmf = CopyMetaFile (lpobjsrc->mfp.hMF, NULL)))
return OLE_ERROR_MEMORY;
if (lpobjMf = MfCreateBlank (lhclientdoc, lpobjname,
lpobjsrc->head.ctype)) {
lpobjMf->mfp = lpobjsrc->mfp;
lpobjMf->sizeBytes = lpobjsrc->sizeBytes;
lpobjMf->mfp.hMF = hmf;
lpobjMf->head.lpclient = lpclient;
lpobjMf->head.mm = lpobjMf->mfp.mm;
MfSetExtents (lpobjMf);
*lplpobj = lpobjMf;
return OLE_OK;
}
return OLE_ERROR_MEMORY;
}
OLESTATUS FARINTERNAL MfEqual (lpobj1, lpobj2)
LPOBJECT_MF lpobj1;
LPOBJECT_MF lpobj2;
{
HANDLE hBits1 = NULL, hBits2 = NULL;
OLESTATUS retval = OLE_ERROR_NOT_EQUAL;
if (!(hBits1 = GetMetaFileBits (lpobj1->mfp.hMF)))
goto errEqual;
if (!(hBits2 = GetMetaFileBits (lpobj2->mfp.hMF)))
goto errEqual;
if (CmpGlobals (hBits1, hBits2))
retval = OLE_OK;
errEqual:
if (hBits1)
lpobj1->mfp.hMF = SetMetaFileBits (hBits1);
if (hBits2)
lpobj2->mfp.hMF = SetMetaFileBits (hBits2);
return retval;
}
OLESTATUS FARINTERNAL MfCopy (LPOBJECT_MF lpobj)
{
HANDLE hMF;
if (!(hMF = CopyMetaFile (lpobj->mfp.hMF, NULL)))
return OLE_ERROR_MEMORY;
return (MfCopyToClip (lpobj, hMF));
}
OLESTATUS FARINTERNAL MfQueryBounds (lpobj, lpRc)
LPOBJECT_MF lpobj;
LPRECT lpRc;
{
Puts("MfQueryBounds");
if (!lpobj->mfp.hMF)
return OLE_ERROR_BLANK;
// Bounds are given in MM_HIMETRIC mode.
lpRc->left = 0;
lpRc->top = 0;
lpRc->right = (int) lpobj->head.cx;
lpRc->bottom = (int) lpobj->head.cy;
return OLE_OK;
}
OLECLIPFORMAT FARINTERNAL MfEnumFormat (lpobj, cfFormat)
LPOBJECT_MF lpobj;
OLECLIPFORMAT cfFormat;
{
if (!cfFormat)
return CF_METAFILEPICT;
return NULL;
}
OLESTATUS FARINTERNAL MfGetData (lpobj, cfFormat, lphandle)
LPOBJECT_MF lpobj;
OLECLIPFORMAT cfFormat;
LPHANDLE lphandle;
{
if (cfFormat != CF_METAFILEPICT)
return OLE_ERROR_FORMAT;
if (!(*lphandle = GetHmfp (lpobj)))
return OLE_ERROR_BLANK;
return OLE_OK;
}
LPOBJECT_MF FARINTERNAL MfCreateObject (hMeta, lpclient, fDelete, lhclientdoc, lpobjname, objType)
HANDLE hMeta;
LPOLECLIENT lpclient;
BOOL fDelete;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LONG objType;
{
LPOBJECT_MF lpobj;
if (lpobj = MfCreateBlank (lhclientdoc, lpobjname, objType)) {
if (MfChangeData (lpobj, hMeta, lpclient, fDelete) != OLE_OK) {
MfRelease (lpobj);
lpobj = NULL;
}
}
return lpobj;
}
// If the routine fails then the object will be left with it's old data.
// If fDelete is TRUE, then hMeta, and the hMF it contains will be deleted
// whether the routine is successful or not.
OLESTATUS FARINTERNAL MfChangeData (lpobj, hMeta, lpclient, fDelete)
LPOBJECT_MF lpobj;
HANDLE hMeta;
LPOLECLIENT lpclient;
BOOL fDelete;
{
HANDLE hNewMF;
LPMETAFILEPICT lpMetaPict;
if ((lpMetaPict = (LPMETAFILEPICT) GlobalLock (hMeta)) == NULL) {
if (fDelete)
GlobalFree (hMeta);
return OLE_ERROR_MEMORY;
}
GlobalUnlock (hMeta);
if (!fDelete) {
if (!(hNewMF = CopyMetaFile (lpMetaPict->hMF, NULL)))
return OLE_ERROR_MEMORY;
}
else {
hNewMF = lpMetaPict->hMF;
}
return MfUpdateStruct (lpobj, lpclient, hMeta, lpMetaPict, hNewMF, fDelete);
}
OLESTATUS INTERNAL MfUpdateStruct (lpobj, lpclient, hMeta, lpMetaPict, hMF, fDelete)
LPOBJECT_MF lpobj;
LPOLECLIENT lpclient;
HANDLE hMeta;
LPMETAFILEPICT lpMetaPict;
HANDLE hMF;
BOOL fDelete;
{
OLESTATUS retVal;
DWORD size;
HANDLE hOldMF;
hOldMF = lpobj->mfp.hMF;
ASSERT(lpMetaPict->mm == MM_ANISOTROPIC, "Wrong mapping mode")
if (lpMetaPict->mm != MM_ANISOTROPIC)
retVal = OLE_ERROR_METAFILE;
else if (!(size = MfGetSize (&hMF)))
retVal = OLE_ERROR_BLANK;
else {
lpobj->mfp = *lpMetaPict;
lpobj->mfp.hMF = hMF;
lpobj->sizeBytes = size + sizeof(METAFILEPICT);
lpobj->head.lpclient = lpclient;
lpobj->head.mm = lpobj->mfp.mm;
if (lpobj->hmfp) {
GlobalFree (lpobj->hmfp);
lpobj->hmfp = NULL;
}
MfSetExtents (lpobj);
if (hOldMF)
DeleteMetaFile (hOldMF);
retVal = OLE_OK;
}
if (retVal != OLE_OK)
DeleteMetaFile (hMF);
if (fDelete)
GlobalFree (hMeta);
return retVal;
}
LPOBJECT_MF FARINTERNAL MfCreateBlank(lhclientdoc, lpobjname, objType)
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LONG objType;
{
HOBJECT hobj;
LPOBJECT_MF lpobj;
if(!(hobj = GlobalAlloc (GMEM_MOVEABLE|GMEM_ZEROINIT,sizeof (OBJECT_MF))))
return NULL;
if (!(lpobj = (LPOBJECT_MF) GlobalLock (hobj))){
GlobalFree (hobj);
return NULL;
}
lpobj->head.objId[0] = 'L';
lpobj->head.objId[1] = 'E';
lpobj->head.ctype = objType;
lpobj->head.lpvtbl = (LPOLEOBJECTVTBL)&vtblMF;
lpobj->head.iTable = INVALID_INDEX;
lpobj->head.mm = MM_TEXT;
lpobj->head.hobj = hobj;
if (objType == CT_STATIC)
DocAddObject ((LPCLIENTDOC) lhclientdoc,
(LPOLEOBJECT) lpobj, lpobjname);
// Unlock will be done at object deletion time.
return lpobj;
}
OLESTATUS FARINTERNAL MfLoadFromStream (lpstream, lpclient, lhclientdoc, lpobjname, lplpobj, objType)
LPOLESTREAM lpstream;
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
LONG objType;
{
LPOBJECT_MF lpobj = NULL;
OLESTATUS retVal = OLE_ERROR_STREAM;
HANDLE hBits;
LPSTR lpBits;
DWORD dwSizeMfp = NULL;
// Class name would've been read by this time.
*lplpobj = NULL;
if (!(lpobj = MfCreateBlank (lhclientdoc, lpobjname, objType)))
return OLE_ERROR_MEMORY;
lpobj->head.lpclient = lpclient;
if (GetBytes (lpstream, (LPSTR) &lpobj->head.cx, sizeof(LONG)))
goto errLoad;
if (GetBytes (lpstream, (LPSTR) &lpobj->head.cy, sizeof(LONG)))
goto errLoad;
if (GetBytes (lpstream, (LPSTR) &lpobj->sizeBytes, sizeof(LONG)))
goto errLoad;
if (!lpobj->sizeBytes) {
retVal = OLE_ERROR_BLANK;
goto errLoad;
}
// if we are reading a MAC object we want to skip this
if (HIWORD(dwVerFromFile) == OS_WIN16) {
if (GetBytes (lpstream, (LPSTR) &lpobj->mfp, sizeof(METAFILEPICT)))
goto errLoad;
dwSizeMfp = sizeof(METAFILEPICT);
}
retVal = OLE_ERROR_MEMORY;
if (!(hBits = GlobalAlloc (GMEM_MOVEABLE, lpobj->sizeBytes - dwSizeMfp)))
goto errLoad;
if (!(lpBits = (LPSTR)GlobalLock (hBits)))
goto errMem;
if (GetBytes (lpstream, (LPSTR)lpBits, lpobj->sizeBytes - dwSizeMfp)) {
retVal = OLE_ERROR_MEMORY;
GlobalUnlock (hBits);
goto errMem;
}
lpobj->head.mm = lpobj->mfp.mm;
GlobalUnlock (hBits);
if (HIWORD(dwVerFromFile) == OS_WIN16) {
if (!(lpobj->mfp.hMF = SetMetaFileBits (hBits)))
goto errMem;
}
else {
// if we are reading a MAC object we want to delete the original
// presentation data and show some rectangle
GlobalFree (hBits);
lpobj->mfp.xExt = (int) lpobj->head.cx;
lpobj->mfp.yExt = (int) lpobj->head.cy;
if ((retVal = wCreateDummyMetaFile (lpobj, lpobj->mfp.xExt,
lpobj->mfp.yExt)) != OLE_OK)
goto errLoad;
}
MfSetExtents (lpobj);
*lplpobj = (LPOLEOBJECT) lpobj;
return OLE_OK;
errMem:
GlobalFree (hBits);
errLoad:
OleDelete ((LPOLEOBJECT)lpobj);
return retVal;
}
OLESTATUS FARINTERNAL MfPaste (lpclient, lhclientdoc, lpobjname, lplpoleobject, objType)
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpoleobject;
LONG objType;
{
HANDLE hMeta;
*lplpoleobject = NULL;
if((hMeta = GetClipboardData (CF_METAFILEPICT)) == NULL)
return OLE_ERROR_MEMORY;
if (!(*lplpoleobject = (LPOLEOBJECT) MfCreateObject (hMeta, lpclient,
FALSE, lhclientdoc,
lpobjname, objType)))
return OLE_ERROR_MEMORY;
return OLE_OK;
}
OLESTATUS INTERNAL MfCopyToClip (lpobj, hMF)
LPOBJECT_MF lpobj;
HANDLE hMF;
{
LPMETAFILEPICT lpMeta;
HANDLE hMeta;
if (!(hMeta = GlobalAlloc (GMEM_MOVEABLE, sizeof(METAFILEPICT))))
return OLE_ERROR_MEMORY;
if (lpMeta = (LPMETAFILEPICT) GlobalLock(hMeta)){
*lpMeta = lpobj->mfp;
if (hMF)
lpMeta->hMF = hMF;
else
lpobj->mfp.hMF = NULL;
GlobalUnlock (hMeta);
SetClipboardData(CF_METAFILEPICT, hMeta);
return OLE_OK;
}
GlobalFree(hMeta);
return OLE_ERROR_MEMORY;
}
void FARINTERNAL MfSetExtents (LPOBJECT_MF lpobj)
{
if (lpobj->mfp.xExt > 0) {
// The extents are assumed to be in MM_HIMETIRC units
lpobj->head.cx = (LONG) lpobj->mfp.xExt;
lpobj->head.cy = (LONG) - lpobj->mfp.yExt;
}
}
DWORD INTERNAL MfGetSize (lphmf)
LPHANDLE lphmf;
{
HANDLE hBits;
DWORD size;
if ((hBits = GetMetaFileBits (*lphmf)) == NULL)
return NULL;
size = GlobalSize(hBits);
*lphmf = SetMetaFileBits (hBits);
return size;
}
HANDLE INTERNAL GetHmfp (lpobj)
LPOBJECT_MF lpobj;
{
HANDLE hmfp;
LPMETAFILEPICT lpmfp = NULL;
if (lpobj->hmfp)
return lpobj->hmfp;
if (!(hmfp = GlobalAlloc (GMEM_MOVEABLE, sizeof(METAFILEPICT))))
return NULL;
if (!(lpmfp = (LPMETAFILEPICT) GlobalLock (hmfp))) {
GlobalFree (hmfp);
return NULL;
}
*lpmfp = lpobj->mfp;
GlobalUnlock (hmfp);
return (lpobj->hmfp = hmfp);
}
BOOL FAR PASCAL OleIsDcMeta (hdc)
HDC hdc;
{
if (!bWLO && (wWinVer == 0x0003)) {
WORD wDsAlias, wGDIcs = HIWORD(SaveDC);
WORD wOffset = LOWORD(((DWORD)SaveDC));
WORD FAR PASCAL AllocCStoDSAlias (WORD);
WORD FAR PASCAL FreeSelector (WORD);
if (!wGDIds) {
wDsAlias = AllocCStoDSAlias (wGDIcs);
wGDIds = GetGDIds (MAKELONG(wOffset, wDsAlias));
FreeSelector (wDsAlias);
}
return IsMetaDC (hdc, wGDIds);
}
else
return (GetDeviceCaps (hdc, TECHNOLOGY) == DT_METAFILE);
}
OLESTATUS FARINTERNAL wCreateDummyMetaFile (
LPOBJECT_MF lpobj,
int xExt,
int yExt)
{
HDC hMetaDC;
if (!(hMetaDC = CreateMetaFile (NULL)))
return OLE_ERROR_MEMORY;
SetWindowOrg (hMetaDC, 0, 0);
SetWindowExt (hMetaDC, xExt, yExt);
Rectangle (hMetaDC, 0, 0, xExt, yExt);
if (!(lpobj->mfp.hMF = CloseMetaFile (hMetaDC)))
return OLE_ERROR_MEMORY;
lpobj->mfp.mm = MM_ANISOTROPIC;
lpobj->sizeBytes = MfGetSize (&lpobj->mfp.hMF) + sizeof(METAFILEPICT);
return OLE_OK;
}