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/////////////////////////////////////////////////////////////////////////////////////////
// Miranda NG: the free IM client for Microsoft* Windows*
//
// Copyright (c) 2012-17 Miranda NG project,
// Copyright (c) 2000-09 Miranda ICQ/IM project,
// all portions of this codebase are copyrighted to the people
// listed in contributors.txt.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// you should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// part of tabSRMM messaging plugin for Miranda.
//
// (C) 2005-2010 by silvercircle _at_ gmail _dot_ com and contributors
//
// inserts a bitmap into a rich edit control using OLE
// code partially taken from public example on the internet, source unknown.
//
// originally part of the smileyadd plugin for Miranda NG
#include "stdafx.h"
// returns true on success, false on failure
bool CImageDataObject::InsertBitmap(IRichEditOle *pRichEditOle, HBITMAP hBitmap)
{
if (pRichEditOle == nullptr)
return false;
// Get the image data object
CImageDataObject *pods = new CImageDataObject;
CComPtr<IDataObject> lpDataObject;
pods->QueryInterface(IID_IDataObject, (void**)&lpDataObject);
BITMAP bminfo;
GetObject(hBitmap, sizeof(bminfo), &bminfo);
pods->SetBitmap(hBitmap);
// Get the RichEdit container site
CComPtr<IOleClientSite> pOleClientSite;
pRichEditOle->GetClientSite(&pOleClientSite);
CComPtr<ILockBytes> lpLockBytes;
if (FAILED(::CreateILockBytesOnHGlobal(nullptr, TRUE, &lpLockBytes)))
return false;
// Initialize a Storage Object
CComPtr<IStorage> pStorage;
if (FAILED(::StgCreateDocfileOnILockBytes(lpLockBytes, STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, &pStorage)))
return false;
// The final ole object which will be inserted in the richedit control
CComPtr<IOleObject> pOleObject = pods->GetOleObject(pOleClientSite, pStorage);
if (pOleObject == nullptr)
return false;
// all items are "contained" -- this makes our reference to this object
// weak -- which is needed for links to embedding silent update.
OleSetContainedObject(pOleObject, TRUE);
// Now Add the object to the RichEdit
CLSID clsid;
if (FAILED(pOleObject->GetUserClassID(&clsid)))
return false;
// Insert the bitmap at the current location in the richedit control
REOBJECT reobject = {};
reobject.cbStruct = sizeof(REOBJECT);
reobject.clsid = clsid;
reobject.cp = REO_CP_SELECTION;
reobject.dvaspect = DVASPECT_CONTENT;
reobject.poleobj = pOleObject;
reobject.polesite = pOleClientSite;
reobject.pstg = pStorage;
reobject.dwFlags = bminfo.bmHeight <= 12 ? 0 : REO_BELOWBASELINE;
return pRichEditOle->InsertObject(&reobject) == S_OK;
}
void CImageDataObject::SetBitmap(HBITMAP hBitmap)
{
STGMEDIUM stgm;
stgm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
stgm.hBitmap = hBitmap;
stgm.pUnkForRelease = nullptr; // Use ReleaseStgMedium
FORMATETC fm;
fm.cfFormat = CF_BITMAP; // Clipboard format = CF_BITMAP
fm.ptd = nullptr; // Target Device = Screen
fm.dwAspect = DVASPECT_CONTENT; // Level of detail = Full content
fm.lindex = -1; // Index = Not applicaple
fm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
this->SetData(&fm, &stgm, TRUE);
}
IOleObject* CImageDataObject::GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage)
{
IOleObject *pOleObject;
if (FAILED(::OleCreateStaticFromData(this, IID_IOleObject, OLERENDER_FORMAT, &m_format, pOleClientSite, pStorage, (void **)&pOleObject)))
return nullptr;
return pOleObject;
}
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