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在我的應用程序中，我目前有2種文檔類型。我將關注的一個，將是第二個。我的應用程序是一個3D引擎編輯器，它建立在MFC MDI中。第一個文檔是渲染窗口，它非常完美，因爲它很容易提取它的hwnd，然後將它發送到我的圖形類。但是我的第二個窗口是腳本，據說（現在）只是爲了進行豐富的編輯。但由於某種原因，它不呈現（實際上它只是一次：/）。C++ MFC MDI查看渲染
CEditorScriptView.h
#pragma once
#include "CEditorDoc.h"
class CCEditorCntrItem;
class CCEditorScriptView : public CView
{
public: // create from serialization only
CCEditorScriptView();
DECLARE_DYNCREATE(CCEditorScriptView)
// Attributes
public:
CCEditorDoc* GetDocument() const;
static CCEditorScriptView * GetView();
// m_pSelection holds the selection to the current CCEditorCntrItem.
// For many applications, such a member variable isn't adequate to
// represent a selection, such as a multiple selection or a selection
// of objects that are not CCEditorCntrItem objects. This selection
// mechanism is provided just to help you get started
// TODO: replace this selection mechanism with one appropriate to your app
CCEditorCntrItem* m_pSelection;
CRichEditCtrl* m_rEdit;
int TYPE;
// Operations
public:
// Overrides
public:
virtual void OnDraw(CDC* pDC); // overridden to draw this view
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
virtual void OnInitialUpdate(); // called first time after construct
virtual BOOL IsSelected(const CObject* pDocItem) const;// Container support
// Implementation
public:
virtual ~CCEditorScriptView();
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif
protected:
// Generated message map functions
protected:
afx_msg void OnDestroy();
afx_msg void OnSetFocus(CWnd* pOldWnd);
afx_msg void OnSize(UINT nType, int cx, int cy);
afx_msg void OnInsertObject();
afx_msg void OnCancelEditCntr();
afx_msg void OnFilePrint();
afx_msg void OnFilePrintPreview();
afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
afx_msg void OnContextMenu(CWnd* pWnd, CPoint point);
DECLARE_MESSAGE_MAP()
};
#ifndef _DEBUG // debug version in CEditorView.cpp
inline CCEditorDoc* CCEditorScriptView::GetDocument() const
{ return reinterpret_cast<CCEditorDoc*>(m_pDocument); }
#endif
CEditorScriptView.cpp：
#include "stdafx.h"
// SHARED_HANDLERS can be defined in an ATL project implementing preview, thumbnail
// and search filter handlers and allows sharing of document code with that project.
#ifndef SHARED_HANDLERS
#include "CEditor.h"
#endif
#include "CEditorDoc.h"
#include "CntrItem.h"
#include "resource.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CCEditorView
#pragma region CCEditorScriptView
IMPLEMENT_DYNCREATE(CCEditorScriptView, CView)
BEGIN_MESSAGE_MAP(CCEditorScriptView, CView)
ON_WM_DESTROY()
ON_WM_SETFOCUS()
ON_WM_SIZE()
ON_COMMAND(ID_OLE_INSERT_NEW, &CCEditorScriptView::OnInsertObject)
ON_COMMAND(ID_CANCEL_EDIT_CNTR, &CCEditorScriptView::OnCancelEditCntr)
ON_COMMAND(ID_FILE_PRINT, &CCEditorScriptView::OnFilePrint)
ON_WM_CONTEXTMENU()
ON_WM_RBUTTONUP()
END_MESSAGE_MAP()
// CCEditorView construction/destruction
CCEditorScriptView::CCEditorScriptView()
{
EnableActiveAccessibility();
m_pSelection = NULL;
// TODO: add construction code here
m_rEdit->Create(WS_CHILD|WS_VISIBLE|WS_BORDER|ES_MULTILINE,
CRect(10,10,500,500), this, 1);
//m_rEdit->SetFocus();
TYPE = ID_CEDITOR_VIEW_SCRIPT;
}
CCEditorScriptView::~CCEditorScriptView()
{
}
BOOL CCEditorScriptView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
// CCEditorView drawing
void CCEditorScriptView::OnDraw(CDC* pDC)
{
if (!pDC)
return;
CCEditorDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
// TODO: add draw code for native data here
// TODO: also draw all OLE items in the document
// Draw the selection at an arbitrary position. This code should be
// removed once your real drawing code is implemented. This position
// corresponds exactly to the rectangle returned by CCEditorCntrItem,
// to give the effect of in-place editing.
// TODO: remove this code when final draw code is complete.
m_rEdit->UpdateWindow();
if (m_pSelection != NULL)
{
CSize size;
CRect rect(10, 10, 210, 210);
if (m_pSelection->GetExtent(&size, m_pSelection->m_nDrawAspect))
{
pDC->HIMETRICtoLP(&size);
rect.right = size.cx + 10;
rect.bottom = size.cy + 10;
}
m_pSelection->Draw(pDC, rect);
}
}
// MDI view implementation file
CCEditorScriptView * CCEditorScriptView::GetView()
{
CMDIChildWnd * pChild =
((CMDIFrameWnd*)(AfxGetApp()->m_pMainWnd))->MDIGetActive();
if (!pChild)
return NULL;
CView * pView = pChild->GetActiveView();
if (!pView)
return NULL;
// Fail if view is of wrong kind
/*if (! pView->IsKindOf(RUNTIME_CLASS(CCEditorRenderView)))
return NULL;*/
return (CCEditorScriptView *) pView;
}
void CCEditorScriptView::OnInitialUpdate()
{
CView::OnInitialUpdate();
// TODO: remove this code when final selection model code is written
m_pSelection = NULL; // initialize selection
}
void CCEditorScriptView::OnDestroy()
{
// Deactivate the item on destruction; this is important
// when a splitter view is being used
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL && pActiveItem->GetActiveView() == this)
{
pActiveItem->Deactivate();
ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
}
CView::OnDestroy();
}
// OLE Client support and commands
BOOL CCEditorScriptView::IsSelected(const CObject* pDocItem) const
{
// The implementation below is adequate if your selection consists of
// only CCEditorCntrItem objects. To handle different selection
// mechanisms, the implementation here should be replaced
// TODO: implement this function that tests for a selected OLE client item
return pDocItem == m_pSelection;
}
void CCEditorScriptView::OnInsertObject()
{
// Invoke the standard Insert Object dialog box to obtain information
// for new CCEditorCntrItem object
COleInsertDialog dlg;
if (dlg.DoModal() != IDOK)
return;
BeginWaitCursor();
CCEditorCntrItem* pItem = NULL;
TRY
{
// Create new item connected to this document
CCEditorDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
pItem = new CCEditorCntrItem(pDoc);
ASSERT_VALID(pItem);
// Initialize the item from the dialog data
if (!dlg.CreateItem(pItem))
AfxThrowMemoryException(); // any exception will do
ASSERT_VALID(pItem);
if (dlg.GetSelectionType() == COleInsertDialog::createNewItem)
pItem->DoVerb(OLEIVERB_SHOW, this);
ASSERT_VALID(pItem);
// As an arbitrary user interface design, this sets the selection
// to the last item inserted
// TODO: reimplement selection as appropriate for your application
m_pSelection = pItem; // set selection to last inserted item
pDoc->UpdateAllViews(NULL);
}
CATCH(CException, e)
{
if (pItem != NULL)
{
ASSERT_VALID(pItem);
pItem->Delete();
}
AfxMessageBox(IDP_FAILED_TO_CREATE);
}
END_CATCH
EndWaitCursor();
}
// The following command handler provides the standard keyboard
// user interface to cancel an in-place editing session. Here,
// the container (not the server) causes the deactivation
void CCEditorScriptView::OnCancelEditCntr()
{
// Close any in-place active item on this view.
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL)
{
pActiveItem->Close();
}
ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
}
// Special handling of OnSetFocus and OnSize are required for a container
// when an object is being edited in-place
void CCEditorScriptView::OnSetFocus(CWnd* pOldWnd)
{
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL &&
pActiveItem->GetItemState() == COleClientItem::activeUIState)
{
// need to set focus to this item if it is in the same view
CWnd* pWnd = pActiveItem->GetInPlaceWindow();
if (pWnd != NULL)
{
pWnd->SetFocus(); // don't call the base class
return;
}
}
CView::OnSetFocus(pOldWnd);
}
void CCEditorScriptView::OnSize(UINT nType, int cx, int cy)
{
CView::OnSize(nType, cx, cy);
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL)
pActiveItem->SetItemRects();
}
void CCEditorScriptView::OnFilePrint()
{
//By default, we ask the Active document to print itself
//using IOleCommandTarget. If you don't want this behavior
//remove the call to COleDocObjectItem::DoDefaultPrinting.
//If the call fails for some reason, we will try printing
//the docobject using the IPrint interface.
CPrintInfo printInfo;
ASSERT(printInfo.m_pPD != NULL);
if (S_OK == COleDocObjectItem::DoDefaultPrinting(this, &printInfo))
return;
CView::OnFilePrint();
}
void CCEditorScriptView::OnRButtonUp(UINT /* nFlags */, CPoint point)
{
ClientToScreen(&point);
OnContextMenu(this, point);
}
void CCEditorScriptView::OnContextMenu(CWnd* /* pWnd */, CPoint point)
{
#ifndef SHARED_HANDLERS
theApp.GetContextMenuManager()->ShowPopupMenu(IDR_POPUP_EDIT, point.x, point.y, this, TRUE);
#endif
}
// CCEditorView diagnostics
#ifdef _DEBUG
void CCEditorScriptView::AssertValid() const
{
CView::AssertValid();
}
void CCEditorScriptView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CCEditorDoc* CCEditorScriptView::GetDocument() const // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCEditorDoc)));
return (CCEditorDoc*)m_pDocument;
}
#pragma endregion
#endif //_DEBUG
// CCEditorView message handlers
這是目前它所輸出：
是現在似乎確定，但它只呈現一次，意思是如果我點擊它（richEdit）n不會發生，或者如果我嘗試輸入richEdit，則不會發生任何事情。所以我想知道，爲什麼？它爲什麼不繼續渲染或更新視圖？
謝謝你
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