BOOL CRectItem::UpdateExtent()
{
// get size in pixels
CSize size;
if (!GetCachedExtent(&size))
return FALSE; // blank
Invalidate(); // invalidate the old size/position
CSize sizeBase = GetBaseSize();
if (size == sizeBase) // no change
return FALSE;
// if new object (i.e. m_extent is empty) setup position
if (sizeBase == CSize(0,0))
{
// convert to document coords
CSize sizeNew(MulDiv(size.cx, 10, 254), - MulDiv(size.cy, 10, 254));
SetSize(sizeNew);
}
else
{
if (!IsInPlaceActive() && size != sizeBase)
{
// data changed and not inplace, so scale up rect as well
CSize sizeCur = GetSize();
sizeCur.cx = MulDiv(sizeCur.cx, size.cx, sizeBase.cx);
sizeCur.cy = - MulDiv(-sizeCur.cy, size.cy, sizeBase.cy);
SetSize(sizeCur);
}
}
SetBaseSize(size);
Invalidate(); // as well as the new size/position
return TRUE;
}
BOOL COleClientItem::ReactivateAndUndo()
{
ASSERT_VALID(this);
ASSERT(m_lpObject != NULL);
ASSERT(IsInPlaceActive());
// get IOleInPlaceObject interface
LPOLEINPLACEOBJECT lpInPlaceObject =
QUERYINTERFACE(m_lpObject, IOleInPlaceObject);
if (lpInPlaceObject == NULL)
{
Close(); // handle rare failure cases by calling Close
return FALSE;
}
// call IOleInPlaceObject::ReactivateAndUndo
m_scLast = lpInPlaceObject->ReactivateAndUndo();
lpInPlaceObject->Release();
if (FAILED(m_scLast))
{
Close(); // handle rare failure cases by calling Close
return FALSE;
}
return TRUE;
}
void CContainerItem::UpdateFromServerExtent()
{
CSize size;
if (GetCachedExtent(&size))
{
// OLE returns the extent in HIMETRIC units -- we need pixels
CClientDC dc(NULL);
dc.HIMETRICtoDP(&size);
// Only invalidate if it has actually changed, and also
// only if it is not in-place active. When in-place active, the
// container item size should sync with the "window size" of the
// object. Only when not in-place active should the container
// item size should sync with the natural size of the object.
if ((size != m_rect.Size()) && !IsInPlaceActive())
{
// invalidate old, update, invalidate new
InvalidateItem();
m_rect.bottom = m_rect.top + size.cy;
m_rect.right = m_rect.left + size.cx;
InvalidateItem();
// mark document as modified
GetDocument()->SetModifiedFlag();
}
}
}
void COleClientItem::Deactivate()
{
ASSERT_VALID(this);
ASSERT(m_lpObject != NULL);
ASSERT(IsInPlaceActive());
// get IOleInPlaceObject interface
LPOLEINPLACEOBJECT lpInPlaceObject =
QUERYINTERFACE(m_lpObject, IOleInPlaceObject);
if (lpInPlaceObject == NULL)
{
Close(); // handle rare failure cases by calling Close
return;
}
// call IOleInPlaceObject::InPlaceDeactivate
m_scLast = lpInPlaceObject->InPlaceDeactivate();
lpInPlaceObject->Release();
if (FAILED(m_scLast))
{
Close(); // handle rare failure cases by calling Close
return;
}
m_nItemState = loadedState; // just in case server has crashed
}
BOOL CDrawItem::UpdateExtent()
{
CSize size;
if (!GetExtent(&size) || size == m_pDrawObj->m_extent)
return FALSE; // blank
// if new object (i.e. m_extent is empty) setup position
if (m_pDrawObj->m_extent == CSize(0, 0))
{
m_pDrawObj->m_position.right =
m_pDrawObj->m_position.left + MulDiv(size.cx, 10, 254);
m_pDrawObj->m_position.bottom =
m_pDrawObj->m_position.top - MulDiv(size.cy, 10, 254);
}
// else data changed so scale up rect as well
else if (!IsInPlaceActive() && size != m_pDrawObj->m_extent)
{
m_pDrawObj->m_position.right = m_pDrawObj->m_position.left +
MulDiv(m_pDrawObj->m_position.Width(), size.cx, m_pDrawObj->m_extent.cx);
m_pDrawObj->m_position.bottom = m_pDrawObj->m_position.top +
MulDiv(m_pDrawObj->m_position.Height(), size.cy, m_pDrawObj->m_extent.cy);
}
m_pDrawObj->m_extent = size;
m_pDrawObj->Invalidate(); // redraw to the new size/position
return TRUE;
}
//////////////////////////////////////////////////////////////////////////////////
//功 能：
//////////////////////////////////////////////////////////////////////////////////
BOOL CCtrlItem::UpdateExtent()
{
if (m_lpViewObject == NULL)
return TRUE;
CSize size;
//下行调用m_lpViewObject，此时m_lpViewObject对部分控件可能为空
if (GetCachedExtent(&size))
{
// OLE returns the extent in HIMETRIC units -- we need pixels.
CClientDC dc(NULL);
dc.HIMETRICtoDP(&size);
// Only invalidate if it has actually changed and also only if it is not
// in-place active.
CSize szTmp;
szTmp.cx = int(m_pCtrlObj->m_position.Size().cx);
szTmp.cy = int(m_pCtrlObj->m_position.Size().cy);
if ((size != szTmp) && !IsInPlaceActive())
{
// Invalidate old, update, invalidate new.
m_pCtrlObj->Invalidate();
m_pCtrlObj->m_position.bottom = m_pCtrlObj->m_position.top + size.cy;
m_pCtrlObj->m_position.right = m_pCtrlObj->m_position.left + size.cx;
m_pCtrlObj->Invalidate();
// mark document as modified.
GetDocument()->SetModifiedFlag();
}
}
return TRUE;
}
//////////////////////////////////////////////////////////////////////////////////////////
//功 能：获取外围裁剪矩形
//////////////////////////////////////////////////////////////////////////////////////////
void CCtrlItem::OnGetClipRect(CRect& rectClip)
{
ASSERT_VALID(this);
CLayoutView* pView = GetActiveView();
CRect rectTemp = m_pCtrlObj->m_position.GetRECT();
//在位激活并且为窗口模式时变更坐标
if (IsInPlaceActive() && !m_bWindowless)
pView->DocToClient(rectTemp);
rectClip = rectTemp;
}
void CRectItem::Move(CRect &rc)
{
// invalidate old rect
Invalidate();
// invalidate new
SetRect(rc);
Invalidate();
// update item rect when in-place active
if (IsInPlaceActive())
SetItemRects();
}
void COleClientItem::Activate(LONG nVerb, CView* pView, LPMSG lpMsg)
{
ASSERT_VALID(this);
ASSERT(m_lpObject != NULL);
if (pView != NULL)
ASSERT_VALID(pView);
if (lpMsg != NULL)
ASSERT(AfxIsValidAddress(lpMsg, sizeof(MSG), FALSE));
// store the container HWND for in place activation then do the verb
if (m_pView == NULL)
m_pView = pView;
_AFX_OLE_STATE* pOleState = _afxOleState;
CView* pViewSave = pOleState->m_pActivateView;
pOleState->m_pActivateView = NULL;
// get item rectangle for in-place players
// (that may not support in-place activation)
LPCRECT lpPosRect = NULL;
CRect rectPos;
if (pView != NULL)
{
ASSERT_VALID(pView);
rectPos.SetRectEmpty();
OnGetItemPosition(rectPos);
if (!rectPos.IsRectEmpty())
{
lpPosRect = &rectPos;
pOleState->m_pActivateView = pView;
}
}
// prepare DoVerb parameters and call into the server
LPOLECLIENTSITE lpClientSite = GetClientSite();
HWND hWnd = pView->GetSafeHwnd();
SCODE sc = m_lpObject->DoVerb(nVerb, lpMsg, lpClientSite, -1,
hWnd, lpPosRect);
pOleState->m_pActivateView = pViewSave;
// clear out m_pView in case in-place activation only partially worked
if (!IsInPlaceActive())
m_pView = NULL;
// update available status based on the results of DoVerb
// (this is used in the links dialog).
m_bLinkUnavail = (BYTE)FAILED(sc);
CheckGeneral(sc);
}
void CCtrlItem::OnGetItemPosition(CRect& rPosition)
{
ASSERT_VALID(this);
// update to extent of item if m_position is not initialized
if (m_pCtrlObj->m_position.IsRectEmpty())
UpdateExtent();
// copy m_position, which is in document coordinates
CLayoutView* pView = GetActiveView();
ASSERT_VALID(pView);
rPosition = m_pCtrlObj->m_position.GetRECT();
//在位激活并且为窗口模式时变更坐标
if (IsInPlaceActive() && !m_bWindowless)
pView->DocToClient(rPosition);
}
void CNetscapeCntrItem::OnDeactivateUI(BOOL bUndoable)
{
COleClientItem::OnDeactivateUI(bUndoable);
// Close an in-place active item whenever it removes the user
// interface. The action here should match as closely as possible
// to the handling of the escape key in the view.
if( IsInPlaceActive() == TRUE) {
TRY {
Deactivate();
}
CATCH(CException, e) {
// Something went wrong in OLE (other app down).
// No complicated handling here, just keep running.
}
END_CATCH
}
BOOL COleClientItem::SetItemRects(LPCRECT lpPosRect, LPCRECT lpClipRect)
{
ASSERT_VALID(this);
ASSERT(m_lpObject != NULL);
ASSERT(IsInPlaceActive());
ASSERT(lpPosRect == NULL ||
AfxIsValidAddress(lpPosRect, sizeof(RECT), FALSE));
ASSERT(lpClipRect == NULL ||
AfxIsValidAddress(lpClipRect, sizeof(RECT), FALSE));
// get IOleInPlaceObject interface
LPOLEINPLACEOBJECT lpInPlaceObject =
QUERYINTERFACE(m_lpObject, IOleInPlaceObject);
if (lpInPlaceObject == NULL)
return FALSE; // perhaps server crashed?
// use OnGetPosRect if rectangle not specified
CRect rectPos;
if (lpPosRect == NULL)
{
ASSERT(lpClipRect == NULL);
OnGetItemPosition(rectPos);
lpPosRect = &rectPos;
}
// use OnGetClipRect if clipping rectangle not specified
CRect rectClip;
if (lpClipRect == NULL)
{
OnGetClipRect(rectClip);
lpClipRect = &rectClip;
}
ASSERT(lpPosRect != NULL);
ASSERT(lpClipRect != NULL);
// notify the server of the new item rectangles
m_scLast = lpInPlaceObject->SetObjectRects(lpPosRect, lpClipRect);
lpInPlaceObject->Release();
// remember position rectangle as cached position
return !FAILED(m_scLast);
}
BOOL COleClientItem::OnChangeItemPosition(const CRect& rectPos)
{
if (!IsInPlaceActive())
return FALSE;
ASSERT_VALID(this);
ASSERT(AfxIsValidAddress(&rectPos, sizeof(CRect), FALSE));
ASSERT_VALID(m_pView);
// determine the visible rect based on intersection between client rect
CRect clipRect;
OnGetClipRect(clipRect);
CRect visRect;
visRect.IntersectRect(clipRect, rectPos);
// advise the server of the new visible rectangle
if (!visRect.IsRectEmpty())
return SetItemRects(&rectPos, &clipRect);
return FALSE;
}
//////////////////////////////////////////////////////////////////////////
//功 能：绘制项目
//////////////////////////////////////////////////////////////////////////
BOOL CCtrlItem::Draw(CDC* pDC, LPCRECT prectBounds,
DVASPECT nDrawAspect)
{
RECTL rclBounds;
RECTL* prclBounds;
CRect rectClip;
CSize size;
if (m_lpObject == NULL || m_lpViewObject == NULL)
{
return FALSE;
}
//项目为窗体控件，返回
if (IsInPlaceActive() && !m_bWindowless)
{
return FALSE;
}
// convert RECT lpBounds to RECTL rclBounds
rclBounds.left = prectBounds->left;
rclBounds.top = prectBounds->top;
rclBounds.right = prectBounds->right;
rclBounds.bottom = prectBounds->bottom;
if (m_bWindowless)
{
prclBounds = NULL;
}
else
{
prclBounds = &rclBounds;
}
m_lpViewObject->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL, pDC->m_hDC,
prclBounds, NULL, NULL, 0);
return TRUE;
}
BOOL CCtrlItem::DrawBackToFront(CDC* pDC, LPCRECT prectBounds)
{
RECTL rclBounds;
RECTL* prclBounds;
DWORD dwViewStatus;
if (m_lpObject == NULL || m_lpViewObject == NULL)
{
return FALSE;
}
if (IsInvisibleAtRuntime())
{
// We are invisible.
return FALSE;
}
if (IsInPlaceActive() && !m_bWindowless)
{
return FALSE;
}
// convert RECT lpBounds to RECTL rclBounds
rclBounds.left = prectBounds->left;
rclBounds.top = prectBounds->top;
rclBounds.right = prectBounds->right;
rclBounds.bottom = prectBounds->bottom;
if (m_bWindowless)
{
prclBounds = NULL;
}
else
{
prclBounds = &rclBounds;
}
if (m_pViewObjectEx != NULL)
{
m_pViewObjectEx->GetViewStatus(&dwViewStatus);
ASSERT(dwViewStatus == m_dwViewStatus);
}
else
{
ASSERT(m_dwViewStatus == 0);
}
if ((m_dwAspectPass2 == DVASPECT_TRANSPARENT)&&(m_dwViewStatus&
VIEWSTATUS_DVASPECTTRANSPARENT))
{
m_lpViewObject->Draw( DVASPECT_TRANSPARENT, -1, NULL, NULL, NULL,
pDC->m_hDC, prclBounds, NULL, NULL, 0 );
}
else if (m_dwAspectPass2 == DVASPECT_CONTENT)
{
m_lpViewObject->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL, pDC->m_hDC,
prclBounds, NULL, NULL, 0);
}
return TRUE;
}
BOOL CCtrlItem::DrawFrontToBack(CDC* pDC, LPCRECT prectBounds)
{
HRESULT hResult;
RECTL rclBounds;
RECTL* prclBounds;
DWORD dwViewStatus;
RECTL rclClip;
CRect rectClip;
CSize size;
if ((m_lpObject == NULL) || (m_lpViewObject == NULL))
{
return FALSE;
}
//如果是在位激活且窗口模式退出
if (IsInPlaceActive() && !m_bWindowless)
{
return FALSE;
}
//不支持两遍绘制
if (m_pViewObjectEx == NULL)
{
// The control doesn't understand two-pass drawing, so just draw it on
// pass 2.
return FALSE ;
}
//不可见退出
if(IsInvisibleAtRuntime() )
{
// We are invisible.
return FALSE;
}
// convert RECT lpBounds to RECTL rclBounds
rclBounds.left = prectBounds->left;
rclBounds.top = prectBounds->top;
rclBounds.right = prectBounds->right;
rclBounds.bottom = prectBounds->bottom;
if (m_bWindowless)
{
prclBounds = NULL;
}
else
{
prclBounds = &rclBounds;
}
// Assume that we won't be able to draw the first pass.
m_dwAspectPass2 = DVASPECT_CONTENT;
m_pViewObjectEx->GetViewStatus( &dwViewStatus );
m_dwViewStatus = dwViewStatus;
ASSERT( m_dwViewStatus == dwViewStatus );
//不支持不透明性退出
if (!(m_dwViewStatus&VIEWSTATUS_DVASPECTOPAQUE))
{
return FALSE;
}
//返回不透明区域
hResult = m_pViewObjectEx->GetRect(DVASPECT_OPAQUE, &rclClip);
if (FAILED(hResult))
{
return FALSE;
}
hResult = m_lpViewObject->Draw(DVASPECT_OPAQUE, -1, NULL, NULL, NULL,
pDC->m_hDC, prclBounds, NULL, NULL, 0);
if (SUCCEEDED(hResult))
{
// Just draw the transparent part in pass 2.
m_dwAspectPass2 = DVASPECT_TRANSPARENT;
}
size = CSize(rclClip.left, rclClip.top);
pDC->HIMETRICtoDP(&size);
rectClip.left = int(m_pCtrlObj->m_position.left+size.cx);
rectClip.top = int(m_pCtrlObj->m_position.top+size.cy);
size = CSize(rclClip.right, rclClip.bottom);
pDC->HIMETRICtoDP(&size);
rectClip.right = int(m_pCtrlObj->m_position.left+size.cx);
rectClip.bottom = int(m_pCtrlObj->m_position.top+size.cy);
//将此区域切掉
pDC->ExcludeClipRect(&rectClip);
return TRUE;
}
void CPadDoc::OnCancelInplace()
{
if (IsInPlaceActive())
OnDeactivateUI(FALSE);
}