566 lines
16 KiB
C
566 lines
16 KiB
C
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/****************************** Module Header ******************************\
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* Module Name: Pbhandlr.C -- Native data based handler (for Pbrush server)
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*
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* PURPOSE: Contains handler routines for Pbrush server. This handler makes
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* use of most of the standard library methods. It replaces only the "Draw",
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* "QueryBounds", "CopyToClipboard" methods of the OLE object. Note that this
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* handler draws the picture from the native data.
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*
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* Created: December 1990
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*
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* Copyright (c) 1990 Microsoft Corporation
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*
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* History:
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* SriniK (../12/1990) Original
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* curts created portable version for WIN16/32
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*
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\***************************************************************************/
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#include <windows.h>
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#include "dll.h"
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OLESTATUS FAR PASCAL _LOADDS PbDraw (LPOLEOBJECT, HDC, OLE_CONST RECT FAR*, OLE_CONST RECT FAR*, HDC);
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OLESTATUS FAR PASCAL _LOADDS PbQueryBounds (LPOLEOBJECT, LPRECT);
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OLESTATUS FAR PASCAL _LOADDS PbCopyToClipboard (LPOLEOBJECT);
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OLESTATUS FAR PASCAL _LOADDS PbGetData (LPOLEOBJECT, OLECLIPFORMAT, HANDLE FAR *);
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OLECLIPFORMAT FAR PASCAL _LOADDS PbEnumFormats (LPOLEOBJECT, OLECLIPFORMAT);
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extern OLESTATUS FARINTERNAL wDibDraw (HANDLE, HDC, LPRECT, LPRECT, HDC, BOOL);
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void PbGetExtents (LPSTR, LPPOINT);
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void PbReplaceFunctions (LPOLEOBJECT);
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HANDLE PbGetPicture (LPOLEOBJECT);
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BOOL IsStandardPict (LPOLEOBJECT);
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extern void FARINTERNAL DibGetExtents(LPSTR, LPPOINT);
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OLEOBJECTVTBL vtblDLL;
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extern OLECLIPFORMAT cfOwnerLink;
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extern OLECLIPFORMAT cfObjectLink;
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extern OLECLIPFORMAT cfNative;
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OLESTATUS (FAR PASCAL *DefQueryBounds) (LPOLEOBJECT, LPRECT);
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OLESTATUS (FAR PASCAL *DefDraw) (LPOLEOBJECT, HDC, LPRECT, LPRECT, HDC);
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OLESTATUS (FAR PASCAL *DefCopyToClipboard) (LPOLEOBJECT);
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OLECLIPFORMAT (FAR PASCAL *DefEnumFormats) (LPOLEOBJECT, OLECLIPFORMAT);
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OLESTATUS (FAR PASCAL *DefGetData) (LPOLEOBJECT, OLECLIPFORMAT, HANDLE FAR *);
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OLESTATUS FAR PASCAL PbLoadFromStream (
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LPOLESTREAM lpstream,
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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LONG objType,
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ATOM aClass,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if (objType == OT_LINK)
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retVal = DefLoadFromStream (lpstream, lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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objType, aClass, cfNative);
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else
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retVal = DefLoadFromStream (lpstream, lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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objType, aClass, cfFormat);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateFromClip (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat,
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LONG objType
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){
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OLESTATUS retVal;
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if ((optRender == olerender_draw)
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&& (IsClipboardFormatAvailable (cfNative))) {
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if (objType == OT_EMBEDDED)
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retVal = DefCreateFromClip (lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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olerender_none, 0, objType);
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else
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retVal = DefCreateFromClip (lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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olerender_format, cfNative, objType);
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}
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else {
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retVal = DefCreateFromClip (lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat, objType);
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}
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateLinkFromClip (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if ((optRender == olerender_draw)
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&& (IsClipboardFormatAvailable (cfNative))) {
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retVal = DefCreateLinkFromClip (lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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olerender_format, cfNative);
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}
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else {
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retVal = DefCreateLinkFromClip (lpprotocol, lpclient,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat);
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}
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateFromTemplate (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LPSTR lptemplate,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if (optRender == olerender_draw)
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retVal = DefCreateFromTemplate (lpprotocol, lpclient, lptemplate,
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lhclientdoc, lpobjname, lplpobj,
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olerender_none, 0);
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else
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retVal = DefCreateFromTemplate (lpprotocol, lpclient, lptemplate,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreate (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LPSTR lpclass,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if (optRender == olerender_draw)
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retVal = DefCreate (lpprotocol, lpclient, lpclass,
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lhclientdoc, lpobjname, lplpobj,
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olerender_none, 0);
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else
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retVal = DefCreate (lpprotocol, lpclient, lpclass,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateFromFile (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LPSTR lpclass,
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LPSTR lpfile,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if (optRender == olerender_draw)
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retVal = DefCreateFromFile (lpprotocol, lpclient, lpclass, lpfile,
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lhclientdoc, lpobjname, lplpobj,
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olerender_none, 0);
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else
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retVal = DefCreateFromFile (lpprotocol, lpclient, lpclass, lpfile,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateLinkFromFile (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LPSTR lpclass,
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LPSTR lpfile,
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LPSTR lpitem,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat
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){
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OLESTATUS retVal;
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if (optRender == olerender_draw)
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retVal = DefCreateLinkFromFile (lpprotocol, lpclient,
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lpclass, lpfile, lpitem,
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lhclientdoc, lpobjname, lplpobj,
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olerender_format, cfNative);
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else
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retVal = DefCreateLinkFromFile (lpprotocol, lpclient,
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lpclass, lpfile, lpitem,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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OLESTATUS FAR PASCAL PbCreateInvisible (
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LPSTR lpprotocol,
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LPOLECLIENT lpclient,
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LPSTR lpclass,
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LHCLIENTDOC lhclientdoc,
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LPSTR lpobjname,
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LPOLEOBJECT FAR * lplpobj,
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OLEOPT_RENDER optRender,
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OLECLIPFORMAT cfFormat,
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BOOL fActivate
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){
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OLESTATUS retVal;
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if (optRender == olerender_draw)
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retVal = DefCreateInvisible (lpprotocol, lpclient, lpclass,
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lhclientdoc, lpobjname, lplpobj,
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olerender_none, 0, fActivate);
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else
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retVal = DefCreateInvisible (lpprotocol, lpclient, lpclass,
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lhclientdoc, lpobjname, lplpobj,
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optRender, cfFormat, fActivate);
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if (retVal <= OLE_WAIT_FOR_RELEASE)
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PbReplaceFunctions (*lplpobj);
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return retVal;
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}
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void PbReplaceFunctions (
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LPOLEOBJECT lpobj
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){
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if (IsStandardPict (lpobj))
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return;
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|
|
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vtblDLL = *lpobj->lpvtbl;
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lpobj->lpvtbl = (LPOLEOBJECTVTBL) &vtblDLL;
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DefDraw = lpobj->lpvtbl->Draw;
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DefQueryBounds = lpobj->lpvtbl->QueryBounds;
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DefCopyToClipboard = lpobj->lpvtbl->CopyToClipboard;
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DefEnumFormats = lpobj->lpvtbl->EnumFormats;
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DefGetData = lpobj->lpvtbl->GetData;
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|
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lpobj->lpvtbl->Draw = PbDraw;
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lpobj->lpvtbl->QueryBounds = PbQueryBounds;
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lpobj->lpvtbl->CopyToClipboard = PbCopyToClipboard;
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lpobj->lpvtbl->EnumFormats = PbEnumFormats;
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lpobj->lpvtbl->GetData = PbGetData;
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}
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|
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||
|
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|
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OLESTATUS FAR PASCAL _LOADDS PbQueryBounds (
|
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|
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LPOLEOBJECT lpobj,
|
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|
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LPRECT lprc
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|
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){
|
||
|
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OLESTATUS retVal;
|
||
|
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HANDLE hData = NULL;
|
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|
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LPSTR lpData;
|
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|
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POINT point;
|
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|
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HANDLE hbminfo = NULL;
|
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|
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LPBITMAPINFO lpbminfo;
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|
|
|
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|
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if ((retVal = (*DefQueryBounds) (lpobj, lprc)) == OLE_OK) {
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|
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if (lprc->top || lprc->bottom || lprc->right || lprc->left)
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|
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return OLE_OK;
|
||
|
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}
|
||
|
|
|
||
|
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if ((*DefGetData) (lpobj, cfNative, &hData) != OLE_OK)
|
||
|
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return retVal;
|
||
|
|
|
||
|
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if (!hData)
|
||
|
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return OLE_ERROR_BLANK;
|
||
|
|
|
||
|
|
if (!(lpData = GlobalLock (hData)))
|
||
|
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goto error;
|
||
|
|
|
||
|
|
if (!(hbminfo = GlobalAlloc(GHND, sizeof(BITMAPINFO))) )
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
if (!(lpbminfo = (LPBITMAPINFO)GlobalLock(hbminfo)) )
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
memcpy((LPSTR)lpbminfo, (LPSTR)(lpData+sizeof(BITMAPFILEHEADER)), sizeof(BITMAPINFO));
|
||
|
|
|
||
|
|
DibGetExtents ((LPSTR)lpbminfo, &point);
|
||
|
|
|
||
|
|
GlobalUnlock (hData);
|
||
|
|
GlobalUnlock (hbminfo);
|
||
|
|
GlobalFree (hbminfo);
|
||
|
|
|
||
|
|
lprc->left = 0;
|
||
|
|
lprc->top = 0;
|
||
|
|
lprc->right = point.x;
|
||
|
|
lprc->bottom = point.y;
|
||
|
|
|
||
|
|
return OLE_OK;
|
||
|
|
|
||
|
|
error:
|
||
|
|
|
||
|
|
if (hData)
|
||
|
|
GlobalUnlock (hData);
|
||
|
|
|
||
|
|
if (hbminfo)
|
||
|
|
{
|
||
|
|
GlobalUnlock (hbminfo);
|
||
|
|
GlobalFree (hbminfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
return OLE_ERROR_MEMORY;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
OLESTATUS FAR PASCAL _LOADDS PbDraw (
|
||
|
|
LPOLEOBJECT lpobj,
|
||
|
|
HDC hdc,
|
||
|
|
OLE_CONST RECT FAR* lprc,
|
||
|
|
OLE_CONST RECT FAR* lpWrc,
|
||
|
|
HDC hdcTarget
|
||
|
|
){
|
||
|
|
HANDLE hData;
|
||
|
|
|
||
|
|
if ((*DefGetData) (lpobj, cfNative, &hData) != OLE_OK)
|
||
|
|
return (*DefDraw) (lpobj, hdc, (LPRECT)lprc, (LPRECT)lpWrc, hdcTarget);
|
||
|
|
|
||
|
|
return wDibDraw (hData, hdc, (LPRECT)lprc, (LPRECT)lpWrc, hdcTarget, TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
OLECLIPFORMAT FAR PASCAL _LOADDS PbEnumFormats (
|
||
|
|
LPOLEOBJECT lpobj,
|
||
|
|
OLECLIPFORMAT cfFormat
|
||
|
|
){
|
||
|
|
OLECLIPFORMAT retFormat = 0;
|
||
|
|
|
||
|
|
if (cfFormat == CF_METAFILEPICT)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (!(retFormat = (*DefEnumFormats) (lpobj, cfFormat)))
|
||
|
|
return CF_METAFILEPICT;
|
||
|
|
|
||
|
|
return retFormat;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
OLESTATUS FAR PASCAL _LOADDS PbGetData (
|
||
|
|
LPOLEOBJECT lpobj,
|
||
|
|
OLECLIPFORMAT cfFormat,
|
||
|
|
HANDLE FAR * lpHandle
|
||
|
|
){
|
||
|
|
OLESTATUS retval;
|
||
|
|
|
||
|
|
retval = (*DefGetData) (lpobj, cfFormat, lpHandle);
|
||
|
|
|
||
|
|
if (retval == OLE_OK || retval == OLE_BUSY || retval == OLE_ERROR_BLANK)
|
||
|
|
return retval;
|
||
|
|
|
||
|
|
if (cfFormat == CF_METAFILEPICT) {
|
||
|
|
if (*lpHandle = PbGetPicture (lpobj))
|
||
|
|
return OLE_WARN_DELETE_DATA;
|
||
|
|
|
||
|
|
return OLE_ERROR_MEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
return OLE_ERROR_FORMAT;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
OLESTATUS FAR PASCAL _LOADDS PbCopyToClipboard (
|
||
|
|
LPOLEOBJECT lpobj
|
||
|
|
){
|
||
|
|
OLESTATUS retVal;
|
||
|
|
HANDLE hPict;
|
||
|
|
|
||
|
|
if ((retVal = (*DefCopyToClipboard) (lpobj)) == OLE_OK) {
|
||
|
|
if (hPict = PbGetPicture (lpobj))
|
||
|
|
SetClipboardData (CF_METAFILEPICT, hPict);
|
||
|
|
else
|
||
|
|
return OLE_ERROR_MEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
return retVal;
|
||
|
|
}
|
||
|
|
|
||
|
|
HANDLE PbGetPicture (
|
||
|
|
LPOLEOBJECT lpobj
|
||
|
|
){
|
||
|
|
HANDLE hMF, hMfp;
|
||
|
|
HANDLE hData = NULL;
|
||
|
|
HANDLE hbminfo = NULL;
|
||
|
|
RECT rc = {0, 0, 0, 0};
|
||
|
|
POINT point;
|
||
|
|
HDC hMetaDC;
|
||
|
|
LPMETAFILEPICT lpmfp;
|
||
|
|
OLESTATUS retVal;
|
||
|
|
LPSTR lpData;
|
||
|
|
LPBITMAPINFO lpbminfo;
|
||
|
|
|
||
|
|
if ((*DefGetData) (lpobj, cfNative, &hData) != OLE_OK)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
if (!hData)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
if (!(lpData = GlobalLock (hData)))
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
if (!(hbminfo = GlobalAlloc(GHND, sizeof(BITMAPINFO))) )
|
||
|
|
goto memory_error;
|
||
|
|
|
||
|
|
if (!(lpbminfo = (LPBITMAPINFO)GlobalLock(hbminfo)) )
|
||
|
|
goto memory_error;
|
||
|
|
|
||
|
|
memcpy((LPSTR)lpbminfo, (LPSTR)(lpData+sizeof(BITMAPFILEHEADER)), sizeof(BITMAPINFO));
|
||
|
|
|
||
|
|
rc.right = (int) lpbminfo->bmiHeader.biWidth;
|
||
|
|
rc.bottom = (int) lpbminfo->bmiHeader.biHeight;
|
||
|
|
DibGetExtents((LPSTR)lpbminfo, &point);
|
||
|
|
|
||
|
|
GlobalUnlock (hData);
|
||
|
|
GlobalUnlock (hbminfo);
|
||
|
|
GlobalFree (hbminfo);
|
||
|
|
|
||
|
|
if (!(hMetaDC = CreateMetaFile (NULL)))
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
MSetWindowOrg (hMetaDC, 0, 0);
|
||
|
|
MSetWindowExt (hMetaDC, rc.right, rc.bottom);
|
||
|
|
retVal = PbDraw (lpobj, hMetaDC, &rc, NULL, NULL);
|
||
|
|
hMF = CloseMetaFile (hMetaDC);
|
||
|
|
|
||
|
|
if (retVal != OLE_OK)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
if (hMF && (hMfp = GlobalAlloc (GMEM_MOVEABLE, sizeof(METAFILEPICT)))
|
||
|
|
&& (lpmfp = (LPMETAFILEPICT) GlobalLock (hMfp))) {
|
||
|
|
lpmfp->hMF = hMF;
|
||
|
|
lpmfp->xExt = point.x;
|
||
|
|
lpmfp->yExt = -point.y;
|
||
|
|
lpmfp->mm = MM_ANISOTROPIC;
|
||
|
|
GlobalUnlock (hMfp);
|
||
|
|
return hMfp;
|
||
|
|
}
|
||
|
|
|
||
|
|
error:
|
||
|
|
|
||
|
|
if (hMF)
|
||
|
|
DeleteMetaFile (hMF);
|
||
|
|
|
||
|
|
if (hMfp)
|
||
|
|
GlobalFree (hMfp);
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
memory_error:
|
||
|
|
|
||
|
|
GlobalUnlock(hData);
|
||
|
|
|
||
|
|
if (hbminfo)
|
||
|
|
{
|
||
|
|
GlobalUnlock(hbminfo);
|
||
|
|
GlobalFree(hbminfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
return(NULL);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// normal handler can't do this. since this handler is part of olecli.dll, we
|
||
|
|
// we are doing this.
|
||
|
|
|
||
|
|
BOOL IsStandardPict (
|
||
|
|
LPOLEOBJECT lpobj
|
||
|
|
){
|
||
|
|
LPOBJECT_LE lpLEobj;
|
||
|
|
LONG type;
|
||
|
|
|
||
|
|
lpLEobj = (LPOBJECT_LE) lpobj;
|
||
|
|
if (!lpLEobj->lpobjPict)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if ((*lpLEobj->lpobjPict->lpvtbl->QueryType) (lpLEobj->lpobjPict, &type)
|
||
|
|
== OLE_ERROR_GENERIC)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|