//需要用枚举的办法来获得指定OLE的显示位置，不知道有没有其它更好的办法。
BOOL CImageOle::GetOleRect( LPRECT lpRect )
{
IRichEditOle *pRichEditOle=NULL;
LRESULT lRes=m_pRichedit->DuiSendMessage(EM_GETOLEINTERFACE,0,(LPARAM)&pRichEditOle);
if(!pRichEditOle) return FALSE;
BOOL bRet=FALSE;
int nObjCount = pRichEditOle->GetObjectCount();
int i = 0;
for (i = 0;i < nObjCount;i++)
{
REOBJECT reo;
ZeroMemory(&reo, sizeof(REOBJECT));
reo.cbStruct = sizeof(REOBJECT);
HRESULT hr = pRichEditOle->GetObject(i, &reo, REO_GETOBJ_POLEOBJ);
if (hr != S_OK)
continue;
reo.poleobj->Release();
if (reo.poleobj == (IOleObject *)this)
{
ITextDocument *pTextDocument = NULL;
ITextRange *pTextRange = NULL;
pRichEditOle->QueryInterface(IID_ITextDocument, (void **)&pTextDocument);
if (!pTextDocument)
break;
long nLeft = 0;
long nBottom = 0;
pTextDocument->Range(reo.cp, reo.cp, &pTextRange);
if (reo.dwFlags & REO_BELOWBASELINE)
hr = pTextRange->GetPoint(TA_BOTTOM|TA_LEFT, &nLeft, &nBottom);
else
hr = pTextRange->GetPoint(TA_BASELINE|TA_LEFT, &nLeft, &nBottom);
pTextDocument->Release();
pTextRange->Release();
CRect rcRichedit;
GetWindowRect(m_pRichedit->GetContainer()->GetHostHwnd(),&rcRichedit);
CSize szOle=m_pSkin->GetSkinSize();
lpRect->left = nLeft - rcRichedit.left;
lpRect->bottom = nBottom - rcRichedit.top;
lpRect->right = lpRect->left + szOle.cx ;
lpRect->top = lpRect->bottom - szOle.cy;
bRet=TRUE;
break;
}
}
pRichEditOle->Release();
return bRet;
}
TCHAR *RichEdit::GetText(int start, int end) const
{
if (end <= start)
end = GetTextLength();
if (textDocument != NULL)
{
ITextRange *range;
if (textDocument->Range(start, end, &range) != S_OK)
return mir_tstrdup(_T(""));
BSTR text = NULL;
if (range->GetText(&text) != S_OK || text == NULL)
{
range->Release();
return mir_tstrdup(_T(""));
}
TCHAR *ret = mir_u2t(text);
SysFreeString(text);
range->Release();
return ret;
}
else
{
int len = GetTextLength();
TCHAR *tmp = (TCHAR *) mir_alloc(len * sizeof(TCHAR));
GetWindowText(hwnd, tmp, len);
tmp[len] = 0;
TCHAR *ret = (TCHAR *) mir_alloc((end - start + 1) * sizeof(TCHAR));
memmove(ret, &tmp[start], (end - start) * sizeof(TCHAR));
ret[end - start] = 0;
mir_free(tmp);
return ret;
}
}
static void SetPosition(HWND hwnd)
{
IRichEditOle* RichEditOle;
if (SendMessage(hwnd, EM_GETOLEINTERFACE, 0, (LPARAM)&RichEditOle) == 0)
return;
ITextDocument* TextDocument;
if (RichEditOle->QueryInterface(IID_ITextDocument, (void**)&TextDocument) != S_OK) {
RichEditOle->Release();
return;
}
// retrieve text range
ITextRange* TextRange;
if (TextDocument->Range(0, 0, &TextRange) != S_OK) {
TextDocument->Release();
RichEditOle->Release();
return;
}
TextDocument->Release();
int objectCount = RichEditOle->GetObjectCount();
for (int i = objectCount - 1; i >= 0; i--) {
REOBJECT reObj = {0};
reObj.cbStruct = sizeof(REOBJECT);
HRESULT hr = RichEditOle->GetObject(i, &reObj, REO_GETOBJ_POLEOBJ);
if (FAILED(hr)) continue;
ISmileyBase *igsc = NULL;
if (reObj.clsid == CLSID_NULL)
reObj.poleobj->QueryInterface(IID_ISmileyAddSmiley, (void**) &igsc);
reObj.poleobj->Release();
if (igsc == NULL) continue;
TextRange->SetRange(reObj.cp, reObj.cp);
BOOL res;
POINT pt;
RECT rect;
hr = TextRange->GetPoint(tomStart | TA_BOTTOM | TA_LEFT, &pt.x, &pt.y);
if (hr == S_OK) {
res = ScreenToClient(hwnd, &pt);
rect.bottom = pt.y;
rect.left = pt.x;
}
else rect.bottom = -1;
hr = TextRange->GetPoint(tomStart | TA_TOP | TA_LEFT, &pt.x, &pt.y);
if (hr == S_OK) {
res = ScreenToClient(hwnd, &pt);
rect.top = pt.y;
rect.left = pt.x;
}
else rect.top = -1;
igsc->SetPosition(hwnd, &rect);
igsc->Release();
}
TextRange->Release();
RichEditOle->Release();
}