//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;
}
BOOL RichEditPara::GetLineRect(int nLineNo, CRect& rcLine)
{
rcLine.SetRectEmpty();
int ncpStart;
int nLength;
m_pObjectHost->SendMessage(EM_LINEINDEX, nLineNo, 0, (LRESULT*)&ncpStart);
m_pObjectHost->SendMessage(EM_LINELENGTH, ncpStart, 0, (LRESULT*)&nLength);
SComPtr<ITextRange> spRangeLine;
ITextDocument * pdoc = m_pObjectHost->GetTextDoc();
pdoc->Range(ncpStart, ncpStart + nLength, &spRangeLine);
if (!spRangeLine)
{
return FALSE;
}
CHARRANGE chr = {ncpStart, ncpStart + nLength};
// http://technet.microsoft.com/zh-cn/hh768766(v=vs.90) 新类型定义
#define _tomClientCoord 256 // 默认获取到的是屏幕坐标， Use client coordinates instead of screen coordinates.
#define _tomAllowOffClient 512 // Allow points outside of the client area.
long lTypeTopLeft = _tomAllowOffClient|_tomClientCoord|tomStart|TA_TOP|TA_LEFT;
long lTypeRightBottom = _tomAllowOffClient|_tomClientCoord|tomEnd|TA_BOTTOM|TA_RIGHT;
POINT ptEnd, ptStart;
spRangeLine->GetPoint(lTypeTopLeft, &ptStart.x, &ptStart.y);
spRangeLine->GetPoint(lTypeRightBottom, &ptEnd.x, &ptEnd.y);
rcLine.SetRect(ptStart, ptEnd);
if (rcLine.Width() == 0)
{
rcLine.right += 1;
}
return TRUE;
}
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();
}
void RichEditPara::UpdatePosition()
{
RichEditObj::UpdatePosition();
if (m_bDisableLayout)
{
// 如果不需要布局,直接返回
return;
}
CComPtr<ITextPara> ppara;
CComPtr<ITextRange> prange;
ITextDocument* pdoc = m_pObjectHost->GetTextDoc();
CHARRANGE chr = m_chrContent;
if (m_bBreakAtTheEnd)
{
chr.cpMax += 1;
}
pdoc->Range(chr.cpMin, chr.cpMax, &prange);
prange->GetPara(&ppara);
if (!m_bInited)
{
m_bInited = TRUE;
ppara->SetSpaceBefore(px2pt(m_rcMargin.top));
ppara->SetSpaceAfter(px2pt(m_rcMargin.bottom));
}
CRect rcAdjust = m_pObjectHost->GetAdjustedRect();
CRect rcClient = m_pObjectHost->GetHostRect();
int nLeftIndents = m_alignType==ALIGN_RIGHT? m_rcMargin.right : m_rcMargin.left;
int nRightIndents = m_alignType==ALIGN_RIGHT? m_rcMargin.left: m_rcMargin.right;
nRightIndents += rcClient.Width() - rcAdjust.Width();// 计算真实的右边距
// 尽量不要使用模拟计算,能提高速度
if (!m_bSimulateAlign || m_alignType == ALIGN_LEFT)
{
m_bWrapped = IsWrapped();
if (m_bNeedUpdateLayout)
{
int nAlign = tomAlignLeft;
if (m_alignType == ALIGN_RIGHT)
nAlign = tomAlignRight;
else if (m_alignType == ALIGN_CENTER)
nAlign = tomAlignCenter;
ppara->SetAlignment(nAlign);
ppara->SetIndents(0, px2pt(nLeftIndents), px2pt(nRightIndents));
m_bNeedUpdateLayout = FALSE;
}
return;
}
/* 模拟计算右对齐
* 注意：SetIndents和CalcParagraphRect很耗时,所以尽量不使用模拟计算靠右
*
* 1.先按最靠边的左右缩进设置
* 2.按照cp计算段落的rect
* 3.用richedit.width() - para.widht()计算左缩进,模拟右对齐
* 4.根据计算出的左/缩进重新设置
*/
// step 1
ppara->SetIndents(0, px2pt(nLeftIndents), px2pt(nRightIndents));
if ((m_bWrapped = IsWrapped()))
return;
// step 2
CalcParagraphRect();
// step 3
if (m_alignType == ALIGN_RIGHT)
{
nLeftIndents = rcClient.Width() - m_rcObj.Width() - nRightIndents - 1; // 这里不减1,段落就换行了
}
else
{
int mid = (rcClient.Width() - m_rcObj.Width() - nRightIndents -nLeftIndents) / 2 - 1;
nLeftIndents = m_rcMargin.left + mid;
nRightIndents = m_rcMargin.right + mid;
}
// step 4
ppara->SetIndents(0, px2pt(nLeftIndents), px2pt(nRightIndents));
m_bNeedUpdateLayout = FALSE;
m_bDirty = TRUE;
}
