// ==========================================================================
// Class Implementation :
// COXTabClientWnd & COXTabWorkspace & COXTabWorkspaceDropTarget
// ==========================================================================
// Source file : OXTabClientWnd.cpp
// Copyright � Dundas Software Ltd. 1997 - 1998, All Rights Reserved
// //////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "OXTabClientWnd.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
// Change tab on drag over handler
DROPEFFECT COXTabWorkspaceDropTarget::OnDragOver(CWnd* pWnd,
COleDataObject* pDataObject,
DWORD dwKeyState,
CPoint point)
{
UNREFERENCED_PARAMETER(pDataObject);
UNREFERENCED_PARAMETER(dwKeyState);
// get the pointer to tab control
COXTabWorkspace* pTabWorkspace=(COXTabWorkspace*)pWnd;
TC_HITTESTINFO hitTest;
hitTest.pt=point;
// find the drop target item
int nItem=pTabWorkspace->HitTest(&hitTest);
// if found ...
if(nItem>=0)
{
// get the pointer to corresponding MDIChild
CWnd* pChildWnd=pTabWorkspace->m_arrTab[nItem].pWnd;
if(::IsWindow(pChildWnd->GetSafeHwnd()))
{
// activate it
pTabWorkspace->GetParentFrame()->MDIActivate(pChildWnd);
}
}
return DROPEFFECT_NONE;
}
COXTabWorkspace::COXTabWorkspace()
{
m_pTabClientWnd=NULL;
m_dwOffset=ID_TABOFFSET;
m_bAcceptDraggedObject=TRUE;
}
COXTabWorkspace::~COXTabWorkspace()
{
}
BEGIN_MESSAGE_MAP(COXTabWorkspace, CTabCtrl)
//{{AFX_MSG_MAP(COXTabWorkspace)
ON_WM_CREATE()
ON_WM_TIMER()
ON_NOTIFY_REFLECT_EX(TCN_SELCHANGE, OnSelchange)
ON_WM_LBUTTONDBLCLK()
ON_WM_NCCALCSIZE()
ON_WM_NCPAINT()
ON_WM_DESTROY()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
int COXTabWorkspace::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if(CTabCtrl::OnCreate(lpCreateStruct)==-1)
return -1;
// set status timer
if(SetTimer(IDT_MDI_STATUS_TIMER,500,NULL)==0)
{
TRACE(_T("COXTabWorkspace::OnCreate: SetTimer() failed\n"));
return -1;
}
// create image list
if(!m_imageList.Create(GetSystemMetrics(SM_CXSMICON),
GetSystemMetrics(SM_CYSMICON),ILC_COLOR8|ILC_MASK,4,4))
{
TRACE(_T("COXTabWorkspace::OnCreate: Create() image list failed\n"));
return -1;
}
// set default font
SendMessage(WM_SETFONT,(WPARAM)GetStockObject(DEFAULT_GUI_FONT));
// set image list that will be in future populated with MDIChild
// window icons
SetImageList(&m_imageList);
// register drop-target
if(!m_dropTarget.Register(this))
{
TRACE(_T("COXTabWorkspace::OnCreate: failed to register the control with COleDropTarget\n"));
TRACE(_T("you've probably forgot to initialize OLE libraries using AfxOleInit function\n"));
}
return 0;
}
void COXTabWorkspace::OnNcCalcSize(BOOL bCalcValidRects,
NCCALCSIZE_PARAMS FAR* lpncsp)
{
// TODO: Add your message handler code here and/or call default
CTabCtrl::OnNcCalcSize(bCalcValidRects, lpncsp);
// add an offset
if(lpncsp->rgrc[0].bottom-lpncsp->rgrc[0].top>2*(int)m_dwOffset)
{
lpncsp->rgrc[0].top+=m_dwOffset;
lpncsp->rgrc[0].bottom-=m_dwOffset;
}
else
{
lpncsp->rgrc[0].top=lpncsp->rgrc[0].bottom;
}
if(lpncsp->rgrc[0].right-lpncsp->rgrc[0].left>2*(int)m_dwOffset)
{
lpncsp->rgrc[0].left+=m_dwOffset;
lpncsp->rgrc[0].right-=m_dwOffset;
}
else
{
lpncsp->rgrc[0].left=lpncsp->rgrc[0].right;
}
}
void COXTabWorkspace::OnNcPaint()
{
// TODO: Add your message handler code here
CWindowDC dc(this);
CRect rectClient;
GetClientRect(rectClient);
CRect rectWindow;
GetWindowRect(rectWindow);
ScreenToClient(rectWindow);
rectClient.OffsetRect(-rectWindow.left, -rectWindow.top);
if(rectClient.top<rectClient.bottom && rectClient.top<rectClient.bottom)
dc.ExcludeClipRect(rectClient);
// erase parts not drawn
SendMessage(WM_ERASEBKGND, (WPARAM)dc.m_hDC);
// draw borders in non-client area
rectWindow.OffsetRect(-rectWindow.left, -rectWindow.top);
dc.Draw3dRect(rectWindow,::GetSysColor(COLOR_BTNSHADOW),
::GetSysColor(COLOR_BTNHILIGHT));
// Do not call CTabCtrl::OnNcPaint() for painting messages
}
void COXTabWorkspace::OnDestroy()
{
CTabCtrl::OnDestroy();
// TODO: Add your message handler code here
// delete image list
VERIFY(m_imageList.DeleteImageList());
// kill update timer
VERIFY(KillTimer(IDT_MDI_STATUS_TIMER));
// clean up internal arrays
m_arrImage.RemoveAll();
m_arrTab.RemoveAll();
}
//////////////////////////////////////////////////////////////////////////////
// Description: Timer handler - periodically refreshes tabs, determines
// active MDIChild and updates window names
//////////////////////////////////////////////////////////////////////////////
void COXTabWorkspace::OnTimer(UINT nIDEvent)
{
if(nIDEvent!=IDT_MDI_STATUS_TIMER)
{
CTabCtrl::OnTimer(nIDEvent);
return;
}
// update active MDIChild and window text
UpdateContents(TRUE);
}
//////////////////////////////////////////////////////////////////////////////
// Description: Selection change handler
//////////////////////////////////////////////////////////////////////////////
BOOL COXTabWorkspace::OnSelchange(NMHDR* pNMHDR, LRESULT* pResult)
{
UNREFERENCED_PARAMETER(pNMHDR);
if(GetCurSel()>=0)
{
// get the pointer to the MDIChild that will be activated
CWnd* pChildWnd=m_arrTab[GetCurSel()].pWnd;
if(::IsWindow(pChildWnd->GetSafeHwnd()))
GetParentFrame()->MDIActivate(pChildWnd);
}
// update the size and position of the tab control and MDIClient window
ASSERT(::IsWindow(GetParentFrame()->GetSafeHwnd()));
GetParentFrame()->RecalcLayout();
*pResult = 0;
return FALSE;
}
//////////////////////////////////////////////////////////////////////////////
// Description: Double click handler - maximizes / restores.
//////////////////////////////////////////////////////////////////////////////
void COXTabWorkspace::OnLButtonDblClk(UINT nFlags, CPoint point)
{
UNREFERENCED_PARAMETER(nFlags);
UNREFERENCED_PARAMETER(point);
if(GetCurSel()>=0)
{
// get the pointer to the MDIChild that will be maximized/restored
CWnd* pChildWnd=m_arrTab[GetCurSel()].pWnd;
if(::IsWindow(pChildWnd->GetSafeHwnd()))
{
BOOL bMaximize=FALSE;
CWnd* pActiveWnd=GetParentFrame()->MDIGetActive(&bMaximize);
// maximize or restore MDIChild window based on its current state
if(pActiveWnd==pChildWnd && bMaximize)
GetParentFrame()->MDIRestore(pChildWnd);
else
GetParentFrame()->MDIMaximize(pChildWnd);
}
}
}
// scan through all MDIChild windows and refreshes window names and
// current active window. If bAddNewWindows is set to TRUE then if any
// new MDIChild is found it will be added to the tab control
void COXTabWorkspace::UpdateContents(BOOL bAddNewWindows/*=FALSE*/)
{
ASSERT(m_pTabClientWnd!=NULL);
// check MDI windows
CMDIFrameWnd* pFrameWnd=GetParentFrame();
if(pFrameWnd==NULL)
return;
BOOL bRecalc=m_pTabClientWnd->m_bForceToRecalc;
// get pointer to currently active MDIChild
CWnd* pActiveChildWnd=pFrameWnd->MDIGetActive(NULL);
CMDIChildWnd* pChildWnd=NULL;
int nActiveIndex=-1;
// start enumerating from currently active MDIChild
if(pActiveChildWnd!=NULL)
pChildWnd=(CMDIChildWnd*)pActiveChildWnd->GetWindow(GW_HWNDFIRST);
// flag all current tabs as unfound (for debug purposes in order to check
// the integrity of the framework)
#ifdef _DEBUG
for(int nIndex=0; nIndex<m_arrTab.GetSize(); nIndex++)
m_arrTab[nIndex].bFound=FALSE;
#endif
// enumerate all child windows
while(pChildWnd!=NULL)
{
// window text
CString sWindowText=GetTextForTabItem(pChildWnd);
// see if can find
int nFoundItem=FindTabItem(pChildWnd->GetSafeHwnd());
if(nFoundItem!=-1)
{
if((pChildWnd->GetStyle()&WS_VISIBLE)==WS_VISIBLE)
{
if(pChildWnd==pActiveChildWnd)
// found currently active MDIChild
nActiveIndex=nFoundItem;
#ifdef _DEBUG
m_arrTab[nFoundItem].bFound=TRUE;
#endif
// update text if necessary
if(m_arrTab[nFoundItem].sText!=sWindowText)
{
m_arrTab[nFoundItem].sText=sWindowText;
TC_ITEM tci;
tci.mask=TCIF_TEXT;
tci.pszText=(LPTSTR)(LPCTSTR)sWindowText;
SetItem(nFoundItem,&tci);
bRecalc=TRUE;
}
}
else
{
RemoveTabItem(pChildWnd,FALSE);
bRecalc=TRUE;
}
}
else if(bAddNewWindows)
{
// add item
AddTabItem(pChildWnd,FALSE);
bRecalc=TRUE;
}
// get next MDIChild
pChildWnd=(CMDIChildWnd*)pChildWnd->GetWindow(GW_HWNDNEXT);
}
#ifdef _DEBUG
for(nIndex=0; nIndex<m_arrTab.GetSize(); nIndex++)
ASSERT(m_arrTab[nIndex].bFound);
#endif
// set the active item
if(nActiveIndex>=0 && GetCurSel()!=nActiveIndex)
{
SetCurSel(nActiveIndex);
bRecalc=TRUE;
}
if(bRecalc)
{
// update the size and position of the tab control and MDIClient window
if(::IsWindow(GetParentFrame()->GetSafeHwnd()))
GetParentFrame()->RecalcLayout();
m_pTabClientWnd->m_bForceToRecalc=FALSE;
}
}
// retrieves pointer to the MDIFrame window
CMDIFrameWnd* COXTabWorkspace::GetParentFrame() const
{
ASSERT(m_pTabClientWnd!=NULL);
ASSERT(m_pTabClientWnd->IsAttached());
// request MDIClient for the parent frame
CMDIFrameWnd* pParentFrame=m_pTabClientWnd->GetParentFrame();
ASSERT(pParentFrame!=NULL);
return pParentFrame;
}
// finds the tab item for specified window. Returns -1 if not found
int COXTabWorkspace::FindTabItem(const HWND hWnd) const
{
int nFoundItem=-1;
// loop through all tab items
for(int nIndex=0; nIndex<m_arrTab.GetSize(); nIndex++)
{
// check for window handle
if(m_arrTab[nIndex].pWnd->GetSafeHwnd()==hWnd)
{
// double check for window class name
TCHAR sWndClass[512];
GetClassName(hWnd,sWndClass,sizeof(sWndClass)/sizeof(TCHAR));
if(m_arrTab[nIndex].sWndClass==sWndClass)
{
nFoundItem=nIndex;
break;
}
}
}
return nFoundItem;
}
// add new item into the tab control for specified MDIChild. If bRedraw is
// set to TRUE then framework will be redrawn in order to show new item.
BOOL COXTabWorkspace::AddTabItem(const CWnd* pChildWnd, BOOL bRedraw/*=TRUE*/,
BOOL bOnlyVisible/*=TRUE*/)
{
ASSERT(pChildWnd!=NULL);
ASSERT(::IsWindow(pChildWnd->GetSafeHwnd()));
// make sure we add MDIChild window
if((pChildWnd->GetExStyle()&WS_EX_MDICHILD)==0)
return FALSE;
// make sure it is visible at the moment
if(bOnlyVisible && (pChildWnd->GetStyle()&WS_VISIBLE)==0)
return FALSE;
// work out icon...
TCHAR sWndClass[512];
WNDCLASSEX classInfo={ sizeof (WNDCLASSEX) };
GetClassName(pChildWnd->m_hWnd,sWndClass,sizeof(sWndClass)/sizeof(TCHAR));
GetClassInfoEx(AfxGetInstanceHandle(),sWndClass,&classInfo);
HICON hIcon=(HICON)::GetClassLong(pChildWnd->m_hWnd,GCL_HICONSM);
if(hIcon==NULL)
{
CWnd* pWnd=(CWnd*)pChildWnd;
hIcon=(HICON)pWnd->SendMessage(WM_GETICON,ICON_SMALL);
if(hIcon==NULL)
{
hIcon=(HICON)::GetClassLong(pChildWnd->m_hWnd,GCL_HICON);
if(hIcon==NULL)
hIcon=(HICON)pWnd->SendMessage(WM_GETICON,ICON_BIG);
}
}
int nImageIndex=-1;
if(hIcon!=NULL)
{
// check if we already included the specifyed item into the tab control
// image list
for(nImageIndex=0; nImageIndex<m_arrImage.GetSize(); nImageIndex++)
if(m_arrImage[nImageIndex]==hIcon)
// found
break;
if(nImageIndex==m_arrImage.GetSize())
{
// add if not found
m_imageList.Add(hIcon);
m_arrImage.Add(hIcon);
}
}
// set item text to window text
CString sWindowText=GetTextForTabItem(pChildWnd);
TC_ITEM tci;
tci.mask=TCIF_TEXT|TCIF_IMAGE;
tci.pszText=(TCHAR*)(void*)(const TCHAR*)sWindowText;
tci.iImage=nImageIndex;
// insert new tab control item
VERIFY(InsertItem(m_arrTab.GetSize(),&tci)!=-1);
// redraw the tab control
if(!m_arrTab.GetSize() && bRedraw)
InvalidateRect(NULL);
// save information about new entry
TAB_ITEM_ENTRY newTabItemEntry;
newTabItemEntry.sText=sWindowText;
newTabItemEntry.pWnd=(CWnd*)pChildWnd;
newTabItemEntry.bFound=TRUE;
newTabItemEntry.sWndClass=sWndClass;
m_arrTab.Add(newTabItemEntry);
// update the size and position of the tab control and MDIClient window
if(bRedraw)
{
ASSERT(::IsWindow(GetParentFrame()->GetSafeHwnd()));
GetParentFrame()->RecalcLayout();
}
return TRUE;
}
// remove item from the tab control that corresponds to specified MDIChild
BOOL COXTabWorkspace::RemoveTabItem(const CWnd* pChildWnd, BOOL bRedraw/*=TRUE*/)
{
ASSERT(pChildWnd!=NULL);
ASSERT(::IsWindow(pChildWnd->GetSafeHwnd()));
ASSERT((pChildWnd->GetExStyle()&WS_EX_MDICHILD)!=0);
// find the item
int nTabItem=FindTabItem(pChildWnd);
if(nTabItem==-1)
return FALSE;
// delete item
DeleteItem(nTabItem);
// remove entry from the internal array of created items
m_arrTab.RemoveAt(nTabItem);
// update the size and position of the tab control and MDIClient window
if(bRedraw)
{
if(::IsWindow(GetParentFrame()->GetSafeHwnd()))
GetParentFrame()->RecalcLayout();
}
return TRUE;
}
CString COXTabWorkspace::GetTextForTabItem(const CWnd* pChildWnd) const
{
ASSERT(pChildWnd!=NULL);
ASSERT(pChildWnd->IsKindOf(RUNTIME_CLASS(CMDIChildWnd)));
CString sWindowText=(LPCTSTR)((CWnd*)pChildWnd)->
SendMessage(OXWM_MTI_GETWINDOWTEXT);
if(sWindowText.IsEmpty())
{
CDocument* pDoc=((CMDIChildWnd*)pChildWnd)->GetActiveDocument();
if(pDoc!=NULL)
sWindowText=pDoc->GetTitle();
if(sWindowText.IsEmpty())
pChildWnd->GetWindowText(sWindowText);
}
return sWindowText;
}
/////////////////////////////////////////////////////////////////////////////
// COXTabClientWnd
COXTabClientWnd::COXTabClientWnd()
{
m_pParentFrame=NULL;
m_bForceToRecalc=FALSE;
}
COXTabClientWnd::~COXTabClientWnd()
{
}
BEGIN_MESSAGE_MAP(COXTabClientWnd, CWnd)
//{{AFX_MSG_MAP(COXTabClientWnd)
ON_MESSAGE(WM_MDIACTIVATE,OnMDIActivate)
ON_MESSAGE(WM_MDICREATE,OnMDICreate)
ON_MESSAGE(WM_MDIDESTROY,OnMDIDestroy)
ON_WM_SIZE()
ON_WM_SHOWWINDOW()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// subclasses MDIClient window of the specified MDIFrame window and
// create COXTabWorkspace control to manage MDIChild window
BOOL COXTabClientWnd::Attach(const CMDIFrameWnd* pParentFrame,
DWORD dwTabCtrlStyle/*=DEFAULT_TABCTRLSTYLE*/)
{
ASSERT(pParentFrame!=NULL);
ASSERT(::IsWindow(pParentFrame->GetSafeHwnd()));
// check if already attached
if(IsAttached())
{
TRACE(_T("COXTabClientWnd::Attach: window has already been attached. Call Detach() function before!\n"));
return FALSE;
}
// make sure the specified window is/derived from CMDIFrameWnd class
if(!pParentFrame->IsKindOf(RUNTIME_CLASS(CMDIFrameWnd)))
{
TRACE(_T("COXTabClientWnd::Attach: specified frame window is not of CMDIFrameWnd class (or derived)!\n"));
return FALSE;
}
// try to sublass MDIClient window
if(!SubclassWindow(pParentFrame->m_hWndMDIClient))
{
TRACE(_T("COXTabClientWnd::Attach: failed to subclass MDI Client window\n"));
return FALSE;
}
// save the pointer to parent MDIFrame
m_pParentFrame=(CMDIFrameWnd*)pParentFrame;
// create tab control
//
ASSERT(!::IsWindow(m_tab.GetSafeHwnd()));
CRect rect(0,0,0,0);
// make sure WS_POPUP style is not used
ASSERT((dwTabCtrlStyle&WS_POPUP)==0);
// make sure the following styles are used
dwTabCtrlStyle|=(TCS_FOCUSNEVER|WS_VISIBLE|WS_CHILD);
m_tab.m_pTabClientWnd=this;
// try to create the tab control
if(!m_tab.Create(dwTabCtrlStyle,rect,m_pParentFrame,IDC_TABWORKSPACE))
{
TRACE(_T("COXTabClientWnd::Attach: failed to create tab control\n"));
// if failed we detach the parent frame
Detach();
return FALSE;
}
// update the size and position of the tab control and MDIClient window
m_pParentFrame->RecalcLayout();
// populate tab control with MDIChild windows if any exist at the moment
m_tab.UpdateContents(TRUE);
return TRUE;
}
// unsubclasses MDIClient window and destroy the COXTabWorkspace control
// that was used to manage MDIChild window
BOOL COXTabClientWnd::Detach()
{
// check if any attached
if(!IsAttached())
{
TRACE(_T("COXTabClientWnd::Attach: there is nothing to detach! Window hasn't been attached!\n"));
return FALSE;
}
// destroy tab control
if(::IsWindow(m_tab.GetSafeHwnd()))
m_tab.DestroyWindow();
m_tab.m_pTabClientWnd=NULL;
// unsubclass MDIClient window
UnsubclassWindow();
// update the size and position of the MDIClient window
if(::IsWindow(m_pParentFrame->GetSafeHwnd()))
m_pParentFrame->RecalcLayout();
m_pParentFrame=NULL;
return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
// COXTabClientWnd message handlers
// crucial function that calculate the size of MDIClient window. Called
// by parent MDIFrame window
void COXTabClientWnd::CalcWindowRect(LPRECT lpClientRect, UINT nAdjustType)
{
// TODO: Add your specialized code here and/or call the base class
// now do the laying out
HDWP dwh=BeginDeferWindowPos(2);
// move tab window
if(::IsWindow(m_tab.m_hWnd) && (m_tab.GetStyle()&WS_VISIBLE)==WS_VISIBLE)
{
// get the size of MDIClient the way it fits into the client area of
// the tab control
DWORD dwTabStyle=m_tab.GetStyle();
if((dwTabStyle&TCS_BUTTONS)==TCS_BUTTONS &&
(dwTabStyle&TCS_VERTICAL)==TCS_VERTICAL)
{
CRect rectTab=lpClientRect;
CRect rect(lpClientRect->left,lpClientRect->top,
lpClientRect->left+lpClientRect->bottom-lpClientRect->top,
lpClientRect->top+lpClientRect->right-lpClientRect->left);
// move tab control
::SetWindowPos(m_tab.m_hWnd,NULL,
rect.left,rect.top,rect.Width(),
rect.Height(),SWP_NOZORDER|SWP_NOREDRAW);
rect.DeflateRect(m_tab.GetOffset(),m_tab.GetOffset());
CRect rectCopy=rect;
// adjust the size of tab control
lpClientRect->left+=m_tab.GetOffset();
lpClientRect->top+=m_tab.GetOffset();
lpClientRect->right-=m_tab.GetOffset();
lpClientRect->bottom-=m_tab.GetOffset();
if((dwTabStyle&TCS_RIGHT)==TCS_RIGHT)
{
m_tab.ModifyStyle(TCS_RIGHT|TCS_VERTICAL,0,SWP_NOREDRAW);
m_tab.AdjustRect(FALSE,rect);
m_tab.ModifyStyle(0,TCS_RIGHT|TCS_VERTICAL,SWP_NOREDRAW);
}
else
{
m_tab.ModifyStyle(TCS_VERTICAL,0,SWP_NOREDRAW);
m_tab.AdjustRect(FALSE,rect);
m_tab.ModifyStyle(0,TCS_VERTICAL,SWP_NOREDRAW);
lpClientRect->left+=rect.top-rectCopy.top;
}
lpClientRect->top+=rect.left-rectCopy.left;
lpClientRect->bottom=lpClientRect->top+rect.Width();
lpClientRect->right=lpClientRect->left+rect.Height();
// move tab control
dwh=::DeferWindowPos(dwh,m_tab.m_hWnd,NULL,rectTab.left,
rectTab.top,rectTab.Width(),
rectTab.Height(),SWP_NOZORDER);
}
else
{
CRect rectTab=lpClientRect;
// move tab control
dwh=::DeferWindowPos(dwh,m_tab.m_hWnd,NULL,lpClientRect->left,
lpClientRect->top,
lpClientRect->right-lpClientRect->left,
lpClientRect->bottom-lpClientRect->top, SWP_NOZORDER);
// adjust the size of tab control
if(lpClientRect->bottom-lpClientRect->top>2*(int)m_tab.GetOffset())
{
lpClientRect->top+=m_tab.GetOffset();
lpClientRect->bottom-=m_tab.GetOffset();
}
else
{
lpClientRect->top=lpClientRect->bottom;
}
if(lpClientRect->right-lpClientRect->left>2*(int)m_tab.GetOffset())
{
lpClientRect->left+=m_tab.GetOffset();
lpClientRect->right-=m_tab.GetOffset();
}
else
{
lpClientRect->left=lpClientRect->right;
}
if((dwTabStyle&TCS_BUTTONS)==TCS_BUTTONS &&
(dwTabStyle&TCS_VERTICAL)!=TCS_VERTICAL &&
(dwTabStyle&TCS_BOTTOM)==TCS_BOTTOM)
{
int nTop=lpClientRect->top;
m_tab.ModifyStyle(TCS_BOTTOM,0,SWP_NOREDRAW);
m_tab.AdjustRect(FALSE,lpClientRect);
m_tab.ModifyStyle(0,TCS_BOTTOM,SWP_NOREDRAW);
lpClientRect->bottom-=lpClientRect->top-nTop;
lpClientRect->top-=lpClientRect->top-nTop;
}
else
{
m_tab.AdjustRect(FALSE,lpClientRect);
}
}
if(lpClientRect->bottom<lpClientRect->top ||
lpClientRect->right<lpClientRect->left)
::memset(lpClientRect,0,sizeof(RECT));
::ShowWindow(m_tab.m_hWnd,SW_SHOWNA);
}
// move MDIClient window
dwh=::DeferWindowPos(dwh,m_hWnd,NULL,lpClientRect->left,lpClientRect->top,
lpClientRect->right-lpClientRect->left,
lpClientRect->bottom-lpClientRect->top,
SWP_NOZORDER);
EndDeferWindowPos(dwh);
CWnd::CalcWindowRect(lpClientRect, nAdjustType);
}
// handler for WM_MDIACTIVATE message. Will select corresponding
// tab control item
LONG COXTabClientWnd::OnMDIActivate(UINT wParam, LONG lParam)
{
UNREFERENCED_PARAMETER(lParam);
LONG lResult=Default();
HWND hActiveWnd=(HWND)wParam;
// find corresponding tab control item
int nTabItem=m_tab.FindTabItem(hActiveWnd);
if(nTabItem!=-1)
{
ASSERT(nTabItem>=0 && nTabItem<m_tab.GetItemCount());
m_tab.SetCurSel(nTabItem);
}
// update the contents of the tab control afterwards
m_tab.PostMessage(WM_TIMER,IDT_MDI_STATUS_TIMER);
return lResult;
}
// handler for WM_MDICREATE message. Will add new item into the
// tab control
LONG COXTabClientWnd::OnMDICreate(UINT wParam, LONG lParam)
{
UNREFERENCED_PARAMETER(wParam);
UNREFERENCED_PARAMETER(lParam);
LONG lResult=Default();
// lResult is handle to the newd MDIChild window if it was
// successfully created
if(lResult!=NULL)
{
// there shouldn't be such item in the tab control
ASSERT(m_tab.FindTabItem((HWND)lResult)==-1);
// update the tab control contents
m_tab.SetCurSel(-1);
m_tab.PostMessage(WM_TIMER,IDT_MDI_STATUS_TIMER);
}
return lResult;
}
// handler for WM_MDIDESTROY message. Will remove the correspondent item
// from the tab control
LONG COXTabClientWnd::OnMDIDestroy(UINT wParam, LONG lParam)
{
UNREFERENCED_PARAMETER(lParam);
// remove the item from the tab control
CWnd* pChildWnd=CWnd::FromHandle((HWND)wParam);
m_tab.RemoveTabItem(pChildWnd);
LONG lResult=Default();
// update the contents of the tab control afterwards
m_tab.PostMessage(WM_TIMER,IDT_MDI_STATUS_TIMER);
return lResult;
}
// update the size of the tab control and the MDIClient window
void COXTabClientWnd::OnSize(UINT nType, int cx, int cy)
{
CWnd::OnSize(nType, cx, cy);
// TODO: Add your message handler code here
// update the contents of the tab control afterwards
m_bForceToRecalc=TRUE;
m_tab.PostMessage(WM_TIMER,IDT_MDI_STATUS_TIMER);
}
// show/hide tab control if MDIClient is shown/hidden
void COXTabClientWnd::OnShowWindow(BOOL bShow, UINT nStatus)
{
CWnd::OnShowWindow(bShow,nStatus);
// TODO: Add your message handler code here
if(nStatus==0 && ::IsWindow(m_tab.GetSafeHwnd()))
{
if(bShow)
m_tab.ModifyStyle(NULL,WS_VISIBLE);
else
m_tab.ModifyStyle(WS_VISIBLE,NULL);
}
}