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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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mfc
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src
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oleipfrm.cpp
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C/C++ Source or Header
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1998-06-16
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// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.
#include "stdafx.h"
#ifdef AFX_OLE3_SEG
#pragma code_seg(AFX_OLE3_SEG)
#endif
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define new DEBUG_NEW
/////////////////////////////////////////////////////////////////////////////
// COleCntrFrameWnd implementation
COleCntrFrameWnd::COleCntrFrameWnd(COleIPFrameWnd* pInPlaceFrame)
{
m_pInPlaceFrame = pInPlaceFrame;
RemoveFrameWnd();
}
COleCntrFrameWnd::~COleCntrFrameWnd()
{
AddFrameWnd();
Detach();
}
void COleCntrFrameWnd::RecalcLayout(BOOL /*bNotify*/)
{
if (!m_bInRecalcLayout)
{
m_bInRecalcLayout = TRUE;
m_nIdleFlags &= ~(idleLayout|idleNotify);
ASSERT_VALID(m_pInPlaceFrame);
COleServerDoc* pDoc = (COleServerDoc*)m_pInPlaceFrame->GetActiveDocument();
if (pDoc != NULL && AfxGetThread()->m_pActiveWnd == m_pInPlaceFrame)
{
ASSERT_VALID(pDoc);
ASSERT_KINDOF(COleServerDoc, pDoc);
if (this == m_pInPlaceFrame->m_pMainFrame)
pDoc->OnResizeBorder(NULL, m_pInPlaceFrame->m_lpFrame, TRUE);
if (this == m_pInPlaceFrame->m_pDocFrame)
pDoc->OnResizeBorder(NULL, m_pInPlaceFrame->m_lpDocFrame, FALSE);
}
m_bInRecalcLayout = FALSE;
}
}
void COleCntrFrameWnd::OnIdleUpdateCmdUI()
{
// do frame delayed recalc
if (m_nIdleFlags & idleLayout)
RecalcLayout(m_nIdleFlags & idleNotify);
// update control bars
POSITION pos = m_listControlBars.GetHeadPosition();
while (pos != NULL)
{
CControlBar* pBar = (CControlBar*)m_listControlBars.GetNext(pos);
ASSERT(pBar != NULL);
ASSERT_VALID(pBar);
AfxCallWndProc(pBar, pBar->m_hWnd, WM_IDLEUPDATECMDUI, TRUE, 0);
}
}
BOOL COleCntrFrameWnd::OnCmdMsg(UINT nID, int nCode, void* pExtra,
AFX_CMDHANDLERINFO* pHandlerInfo)
{
ASSERT_VALID(m_pInPlaceFrame);
// pump through inplace frame
CPushRoutingFrame push(this);
return m_pInPlaceFrame->OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);
}
void COleCntrFrameWnd::PostNcDestroy()
{
// do nothing to avoid destroying window
}
#ifdef _DEBUG
void COleCntrFrameWnd::AssertValid() const
{
// COleCntrFrameWnd bends the CWnd rules just a little bit.
ASSERT(m_hWnd == NULL || ::IsWindow(m_hWnd));
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// COleIPFrameWnd implementation
BEGIN_MESSAGE_MAP(COleIPFrameWnd, CFrameWnd)
//{{AFX_MSG_MAP(COleIPFrameWnd)
ON_WM_SIZE()
ON_MESSAGE(WM_RECALCPARENT, OnRecalcParent)
ON_MESSAGE_VOID(WM_IDLEUPDATECMDUI, OnIdleUpdateCmdUI)
ON_WM_WINDOWPOSCHANGING()
ON_WM_CREATE()
ON_WM_DESTROY()
ON_MESSAGE(WM_SIZECHILD, OnResizeChild)
ON_MESSAGE(WM_SETMESSAGESTRING, OnSetMessageString)
ON_UPDATE_COMMAND_UI(ID_VIEW_STATUS_BAR, OnUpdateControlBarMenu)
ON_COMMAND_EX(ID_VIEW_STATUS_BAR, OnBarCheck)
ON_UPDATE_COMMAND_UI(ID_VIEW_TOOLBAR, OnUpdateControlBarMenu)
ON_COMMAND_EX(ID_VIEW_TOOLBAR, OnBarCheck)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
COleIPFrameWnd::COleIPFrameWnd()
{
// initialize OLEINPLACEFRAMEINFO struct
memset(&m_frameInfo, 0, sizeof(m_frameInfo));
m_frameInfo.cb = sizeof m_frameInfo;
// initialize in-place state
m_bUIActive = FALSE;
m_lpFrame = NULL;
m_lpDocFrame = NULL;
m_hOleMenu = NULL;
m_rectPos.SetRectEmpty();
m_rectClip.SetRectEmpty();
m_bInsideRecalc = FALSE;
m_hSharedMenu = NULL;
m_pMainFrame = NULL;
m_pDocFrame = NULL;
ASSERT_VALID(this);
}
COleIPFrameWnd::~COleIPFrameWnd()
{
ASSERT_VALID(this);
// destroy wrappers of container's frames
delete m_pMainFrame;
delete m_pDocFrame;
// destroy shared menu
if (m_hSharedMenu != NULL)
::DestroyMenu(m_hSharedMenu);
// interfaces to the container should already be released
RELEASE(m_lpFrame);
RELEASE(m_lpDocFrame);
}
int COleIPFrameWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
ASSERT_VALID(this);
if (CFrameWnd::OnCreate(lpCreateStruct) < 0)
return -1;
// remove WS_EX_CLIENTEDGE style if present
ModifyStyleEx(WS_EX_CLIENTEDGE, 0, 0);
// need to remove the pending WM_SETMESSAGESTRING from the queue
MSG msg;
PeekMessage(&msg, m_hWnd, WM_SETMESSAGESTRING, WM_SETMESSAGESTRING,
PM_REMOVE|PM_NOYIELD);
ASSERT_VALID(this);
return 0;
}
void COleIPFrameWnd::OnDestroy()
{
// notify the container that the rectangle has changed!
COleServerDoc* pDoc = (COleServerDoc*)GetActiveDocument();
if (pDoc != NULL)
{
ASSERT_KINDOF(COleServerDoc, pDoc);
// close and abort changes to the document
pDoc->DisconnectViews();
pDoc->OnCloseDocument();
}
// explicitly destroy all of the dock bars since this window
// is actually in the container and will not be destroyed
if (m_pMainFrame != NULL)
m_pMainFrame->DestroyDockBars();
if (m_pDocFrame != NULL)
m_pDocFrame->DestroyDockBars();
CFrameWnd::OnDestroy();
}
BOOL COleIPFrameWnd::OnCreateControlBars(CWnd* pWndFrame, CWnd* /*pWndDoc*/)
{
ASSERT(pWndFrame != NULL);
UNUSED(pWndFrame); // not used in release builds
return TRUE;
}
BOOL COleIPFrameWnd::OnCreateControlBars(CFrameWnd* pWndFrame,
CFrameWnd* pWndDoc)
{
return OnCreateControlBars((CWnd*)pWndFrame, (CWnd*)pWndDoc);
}
void COleIPFrameWnd::OnIdleUpdateCmdUI()
{
// update toolbars which may be on the container
// and allow delayed recalc layouts to execute
if (m_pMainFrame != NULL)
m_pMainFrame->OnIdleUpdateCmdUI();
if (m_pDocFrame != NULL)
m_pDocFrame->OnIdleUpdateCmdUI();
}
void COleIPFrameWnd::OnWindowPosChanging(LPWINDOWPOS lpWndPos)
{
MSG msg;
if (!::PeekMessage(&msg, NULL, WM_KICKIDLE, WM_KICKIDLE, PM_NOREMOVE))
::PostThreadMessage(GetCurrentThreadId(), WM_KICKIDLE, 0, 0);
CFrameWnd::OnWindowPosChanging(lpWndPos);
}
LRESULT COleIPFrameWnd::OnSetMessageString(WPARAM wParam, LPARAM lParam)
{
USES_CONVERSION;
if (m_lpFrame != NULL)
{
LPCTSTR lpsz = NULL;
CString strMessage;
// set the message bar text
if (lParam != NULL)
{
ASSERT(wParam == 0); // can't have both an ID and a string
lpsz = (LPCTSTR)lParam; // set an explicit string
}
else if (wParam != 0)
{
// get message associated with the ID indicated by wParam
GetMessageString(wParam, strMessage);
lpsz = strMessage;
}
// notify container of new status text
if (lpsz == NULL)
lpsz = _T("");
m_lpFrame->SetStatusText(T2COLE(lpsz));
}
UINT nIDLast = m_nIDLastMessage;
m_nIDLastMessage = (UINT)wParam; // new ID (or 0)
m_nIDTracking = (UINT)wParam; // so F1 on toolbar buttons work
return nIDLast;
}
BOOL COleIPFrameWnd::LoadFrame(UINT nIDResource, DWORD dwDefaultStyle,
CWnd* pParentWnd, CCreateContext* pContext)
{
if (pParentWnd != NULL)
ASSERT_VALID(pParentWnd);
// only do this once
ASSERT_VALID_IDR(nIDResource);
ASSERT(m_nIDHelp == 0 || m_nIDHelp == nIDResource);
m_nIDHelp = nIDResource; // ID for help context (+HID_BASE_RESOURCE)
// create the window (use child window style create)
CRect rect(0, 0, 0, 0);
if (!CWnd::Create(NULL, NULL, dwDefaultStyle, rect, pParentWnd,
nIDResource, pContext))
{
return FALSE; // will self destruct on failure normally
}
// load accelerator resource
LoadAccelTable(MAKEINTRESOURCE(nIDResource));
return TRUE;
}
void COleIPFrameWnd::OnSize(UINT /*nType*/, int /*cx*/, int /*cy*/)
{
// recalc layout is not called in OnSize since COleIPFrameWnd does
// "inside out" recalc -- which is driven by the size of the
// inner most window changing, not the outer most!
}
LRESULT COleIPFrameWnd::OnResizeChild(WPARAM, LPARAM lParam)
{
// notify the container that the rectangle has changed!
COleServerDoc* pDoc = (COleServerDoc*)GetActiveDocument();
if (pDoc == NULL)
return 0;
ASSERT_KINDOF(COleServerDoc, pDoc);
// get new rect and parent
CRect rectNew;
rectNew.CopyRect((LPCRECT)lParam);
CWnd* pParentWnd = GetParent();
ASSERT_VALID(pParentWnd);
// convert rectNew relative to pParentWnd
ClientToScreen(&rectNew);
pParentWnd->ScreenToClient(&rectNew);
// adjust the new rectangle for the current control bars
CWnd* pLeftOver = GetDlgItem(AFX_IDW_PANE_FIRST);
ASSERT(pLeftOver != NULL);
CRect rectCur = m_rectPos;
pLeftOver->CalcWindowRect(&rectCur, CWnd::adjustOutside);
rectNew.left += m_rectPos.left - rectCur.left;
rectNew.top += m_rectPos.top - rectCur.top;
rectNew.right -= rectCur.right - m_rectPos.right;
rectNew.bottom -= rectCur.bottom - m_rectPos.bottom;
OnRequestPositionChange(rectNew);
return 0;
}
void COleIPFrameWnd::OnRequestPositionChange(LPCRECT lpRect)
{
COleServerDoc* pDoc = (COleServerDoc*)GetActiveDocument();
ASSERT_VALID(pDoc);
ASSERT_KINDOF(COleServerDoc, pDoc);
// DocObjects don't need to generate OnPosRectChange calls,
// so we can just return if this is a DoCobject
if (pDoc->IsDocObject())
return;
// The default behavior is to not affect the extent during the
// call to RequestPositionChange. This results in consistent
// scaling behavior.
pDoc->RequestPositionChange(lpRect);
}
LRESULT COleIPFrameWnd::OnRecalcParent(WPARAM, LPARAM lParam)
{
// simply call recalc layout
RepositionFrame(&m_rectPos, &m_rectClip);
// fill in the new rectangle if specified
if ((LPRECT)lParam != NULL)
*(LPRECT)lParam = m_rectPos;
return TRUE;
}
void COleIPFrameWnd::RecalcLayout(BOOL /*bNotify*/)
{
ASSERT_VALID(this);
// better have a parent window (only used for inplace)
CWnd* pParentWnd = GetParent();
ASSERT_VALID(pParentWnd);
// see if this frame is supporting a normal in-place object or
// a DocObject. DocObjects put scrollbars on the inside of the rect
UINT nAdjustType = CWnd::adjustBorder;
COleServerDoc* pDoc = (COleServerDoc*) GetActiveDocument();
if (pDoc != NULL)
{
ASSERT_VALID(pDoc);
if (pDoc->IsDocObject())
nAdjustType = CWnd::adjustOutside;
}
// first call reposition bars with arbitarily large rect just to
// see how much space the bars will take up
CRect rectBig(0, 0, INT_MAX/2, INT_MAX/2);
CRect rectLeft;
RepositionBars(0, 0xffff, AFX_IDW_PANE_FIRST, reposQuery,
&rectLeft, &rectBig);
// grow the rect by the size of the control bars
CRect rect = m_rectPos;
rect.left -= rectLeft.left;
rect.top -= rectLeft.top;
rect.right += INT_MAX/2 - rectLeft.right;
rect.bottom += INT_MAX/2 - rectLeft.bottom;
// see how much extra space for non-client areas (such as scrollbars)
// that the view needs.
CWnd* pLeftOver = GetDlgItem(AFX_IDW_PANE_FIRST);
if (pLeftOver != NULL)
{
rectBig = m_rectPos;
pLeftOver->CalcWindowRect(&rectBig, CWnd::adjustOutside);
rect.left -= m_rectPos.left - rectBig.left;
rect.top -= m_rectPos.top - rectBig.top;
rect.right += rectBig.right - m_rectPos.right;
rect.bottom += rectBig.bottom - m_rectPos.bottom;
}
// adjust for non-client area on the frame window
CalcWindowRect(&rect, nAdjustType);
// the frame window must be clipped to the visible part in the container
CRect rectVis;
rectVis.IntersectRect(&rect, &m_rectClip);
// move the window
AfxRepositionWindow(NULL, m_hWnd, &rectVis);
// now resize the control bars relative to the (now moved) frame
pParentWnd->ClientToScreen(&rect);
ScreenToClient(&rect);
RepositionBars(0, 0xffff, AFX_IDW_PANE_FIRST,
CWnd::reposDefault, NULL, &rect);
}
void COleIPFrameWnd::RepositionFrame(LPCRECT lpPosRect, LPCRECT lpClipRect)
{
ASSERT(AfxIsValidAddress(lpPosRect, sizeof(RECT), FALSE));
ASSERT(AfxIsValidAddress(lpClipRect, sizeof(RECT), FALSE));
// gaurd against recursion
if (m_bInsideRecalc)
return;
m_bInsideRecalc = TRUE;
// remember the client area for later
m_rectPos.CopyRect(lpPosRect);
m_rectClip.CopyRect(lpClipRect);
// recalc layout based on new position & clipping rectangles
RecalcLayout();
// remove recursion lockout
m_bInsideRecalc = FALSE;
}
BOOL COleIPFrameWnd::PreTranslateMessage(MSG* pMsg)
{
// check server's accelerators first
if (CFrameWnd::PreTranslateMessage(pMsg))
return TRUE;
if (pMsg->message >= WM_KEYFIRST && pMsg->message <= WM_KEYLAST)
{
// always check to see if they exist in the default accel table
// (they may exist but not be translated when disabled)
HACCEL hAccel = GetDefaultAccelerator();
if (hAccel != NULL && IsAccelerator(hAccel,
CopyAcceleratorTable(hAccel, NULL, 0), pMsg, NULL))
{
return TRUE;
}
// check container's accelerators as last chance
OLEINPLACEFRAMEINFO frameInfo = m_frameInfo;
if (::OleTranslateAccelerator(m_lpFrame, &frameInfo, pMsg) == S_OK)
return TRUE;
}
return FALSE; // keystroke not processed.
}
void COleIPFrameWnd::OnUpdateControlBarMenu(CCmdUI* pCmdUI)
{
if (GetControlBar(pCmdUI->m_nID) != NULL)
CFrameWnd::OnUpdateControlBarMenu(pCmdUI);
else if (m_pMainFrame != NULL &&
m_pMainFrame->GetControlBar(pCmdUI->m_nID) != NULL)
{
m_pMainFrame->OnUpdateControlBarMenu(pCmdUI);
}
else if (m_pDocFrame != NULL &&
m_pDocFrame->GetControlBar(pCmdUI->m_nID) != NULL)
{
m_pDocFrame->OnUpdateControlBarMenu(pCmdUI);
}
else
pCmdUI->ContinueRouting();
}
BOOL COleIPFrameWnd::OnBarCheck(UINT nID)
{
if (GetControlBar(nID) != NULL)
return CFrameWnd::OnBarCheck(nID);
else if (m_pMainFrame != NULL && m_pMainFrame->GetControlBar(nID) != NULL)
return m_pMainFrame->OnBarCheck(nID);
else if (m_pDocFrame != NULL && m_pDocFrame->GetControlBar(nID) != NULL)
return m_pDocFrame->OnBarCheck(nID);
return FALSE;
}
/////////////////////////////////////////////////////////////////////////////
// Special-case context sensitive help
void COleIPFrameWnd::OnContextHelp()
{
if (m_bHelpMode == HELP_ACTIVE || !CanEnterHelpMode())
return;
// notify container that we are entering context sensitive help
BOOL bHelpMode = m_bHelpMode;
m_bHelpMode = HELP_ACTIVE;
ASSERT(m_lpFrame != NULL);
if (m_lpFrame->ContextSensitiveHelp(TRUE) != S_OK ||
(m_lpDocFrame != NULL && m_lpDocFrame->ContextSensitiveHelp(TRUE) != S_OK))
{
m_bHelpMode = HELP_INACTIVE;
return;
}
m_bHelpMode = bHelpMode;
// echo help mode to top-level frame
CFrameWnd* pFrameWnd = GetTopLevelFrame();
if (pFrameWnd != this)
pFrameWnd->m_bHelpMode = HELP_ACTIVE;
// now enter context sensitive help mode ourselves
CFrameWnd::OnContextHelp();
// echo help mode to top-level frame
if (pFrameWnd != this)
pFrameWnd->m_bHelpMode = m_bHelpMode;
if (m_bHelpMode == HELP_INACTIVE)
{
// make sure container exits context sensitive help mode
m_lpFrame->ContextSensitiveHelp(FALSE);
if (m_lpDocFrame != NULL)
m_lpDocFrame->ContextSensitiveHelp(FALSE);
}
}
/////////////////////////////////////////////////////////////////////////////
// In-place activation startup
HMENU COleIPFrameWnd::GetInPlaceMenu()
{
// get active document associated with this frame window
CDocument* pDoc = GetActiveDocument();
ASSERT_VALID(pDoc);
// get in-place menu from the doc template
CDocTemplate* pTemplate = pDoc->GetDocTemplate();
ASSERT_VALID(pTemplate);
return pTemplate->m_hMenuInPlaceServer;
}
BOOL COleIPFrameWnd::BuildSharedMenu()
{
HMENU hMenu = GetInPlaceMenu();
// create shared menu
ASSERT(m_hSharedMenu == NULL);
if ((m_hSharedMenu = ::CreateMenu()) == NULL)
return FALSE;
// start out by getting menu from container
memset(&m_menuWidths, 0, sizeof m_menuWidths);
if (m_lpFrame->InsertMenus(m_hSharedMenu, &m_menuWidths) != S_OK)
{
::DestroyMenu(m_hSharedMenu);
m_hSharedMenu = NULL;
return FALSE;
}
// container shouldn't touch these
ASSERT(m_menuWidths.width[1] == 0);
ASSERT(m_menuWidths.width[3] == 0);
ASSERT(m_menuWidths.width[5] == 0);
// only copy the popups if there is a menu loaded
if (hMenu == NULL)
return TRUE;
// insert our menu popups amongst the container menus
AfxMergeMenus(m_hSharedMenu, hMenu, &m_menuWidths.width[0], 1);
// finally create the special OLE menu descriptor
m_hOleMenu = ::OleCreateMenuDescriptor(m_hSharedMenu, &m_menuWidths);
return m_hOleMenu != NULL;
}
void COleIPFrameWnd::DestroySharedMenu()
{
if (m_hSharedMenu == NULL)
{
ASSERT(m_hOleMenu == NULL);
return;
}
// get in-place menu to be unmerged (must be same as during activation)
HMENU hMenu = GetInPlaceMenu();
if (hMenu == NULL)
return;
// remove our menu popups from the shared menu
AfxUnmergeMenus(m_hSharedMenu, hMenu);
// allow container to remove its items from the menu
ASSERT(m_lpFrame != NULL);
VERIFY(m_lpFrame->RemoveMenus(m_hSharedMenu) == S_OK);
// now destroy the menu
::DestroyMenu(m_hSharedMenu);
m_hSharedMenu = NULL;
if (m_hOleMenu != NULL)
{
VERIFY(::OleDestroyMenuDescriptor(m_hOleMenu) == S_OK);
m_hOleMenu = NULL;
}
}
/////////////////////////////////////////////////////////////////////////////
// COleIPFrameWnd diagnostics
#ifdef _DEBUG
void COleIPFrameWnd::AssertValid() const
{
CFrameWnd::AssertValid();
if (m_hSharedMenu != NULL)
ASSERT(::IsMenu(m_hSharedMenu));
}
void COleIPFrameWnd::Dump(CDumpContext& dc) const
{
CFrameWnd::Dump(dc);
dc << "m_lpFrame = " << m_lpFrame;
dc << "\nm_lpDocFrame = " << m_lpDocFrame;
dc << "\nm_hOleMenu = " << m_hOleMenu;
dc << "\nm_rectPos = " << m_rectPos;
dc << "\nm_rectClip = " << m_rectClip;
dc << "\nm_bInsideRecalc = " << m_bInsideRecalc;
dc << "\nm_hSharedMenu = " << m_hSharedMenu;
dc << "\n";
}
#endif //_DEBUG
#ifdef AFX_INIT_SEG
#pragma code_seg(AFX_INIT_SEG)
#endif
IMPLEMENT_DYNCREATE(COleIPFrameWnd, CFrameWnd)
/////////////////////////////////////////////////////////////////////////////