lefttab.cpp

《Visual C++编程技巧典型案例解析：基础与应用篇（下）（含1CD-ROM）——编程技巧典型案例集锦系列》源码

// LeftTab.cpp : implementation file
//

#include "stdafx.h"
#include "demo_devstudio.h"
#include "LeftTab.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CLeftTab

CLeftTab::CLeftTab()
{
	m_nActiveTab = 0;
}

CLeftTab::~CLeftTab()
{
	   while(!m_views.IsEmpty())
	   {
		   TCB_ITEM *pMember=m_views.RemoveHead();
		   delete pMember;
	   }

}


BEGIN_MESSAGE_MAP(CLeftTab, CTabCtrl)
	//{{AFX_MSG_MAP(CLeftTab)
	ON_WM_CREATE()
	ON_WM_WINDOWPOSCHANGED()
	ON_NOTIFY_REFLECT(TCN_SELCHANGE, OnSelchange)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLeftTab message handlers

int CLeftTab::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CTabCtrl::OnCreate(lpCreateStruct) == -1)
		return -1;
	
    CFont *font = CFont::FromHandle((HFONT)::GetStockObject(DEFAULT_GUI_FONT));
	SetFont(font);
    #if _MSC_VER >= 1200
	     m_ToolTip = GetToolTips(); 
         SetToolTips(m_ToolTip);
	#else
	     m_ToolTip = GetTooltips();  
         SetTooltips(m_ToolTip);
	#endif
	
	return 0;
}

void CLeftTab::OnWindowPosChanged(WINDOWPOS FAR* lpwndpos) 
{
    CWnd *pWnd;
	if (((CControlBar*)GetParent())->IsFloating()) {
		for (POSITION pos=m_views.GetHeadPosition(); pos; m_views.GetNext(pos)) {
			pWnd=m_views.GetAt(pos)->pWnd;
			pWnd->MoveWindow(3, 3, lpwndpos->cx-6, lpwndpos->cy-27); }}
	else if (((CControlBar*)GetParent())->IsHorzDocked()) {	
		for (POSITION pos=m_views.GetHeadPosition(); pos; m_views.GetNext(pos)) {
			pWnd=m_views.GetAt(pos)->pWnd;
			pWnd->MoveWindow(3, 3, lpwndpos->cx-6, lpwndpos->cy-27); }}
	else{
		for (POSITION pos=m_views.GetHeadPosition(); pos; m_views.GetNext(pos)) {
			pWnd=m_views.GetAt(pos)->pWnd;
			pWnd->MoveWindow(3, 3, lpwndpos->cx-6, lpwndpos->cy-27); }}

	CTabCtrl::OnWindowPosChanged(lpwndpos);
	
	// TODO: Add your message handler code here
	
}

void CLeftTab::OnSelchange(NMHDR* pNMHDR, LRESULT* pResult) 
{
    SetActiveView(GetCurSel());	
	*pResult = 0;
}

void CLeftTab::OnDestroy() 
{
   while(!m_views.IsEmpty())
   {
		TCB_ITEM *pMember=m_views.RemoveHead();
		pMember->pWnd->DestroyWindow();
		delete pMember;  
   }

	CTabCtrl::OnDestroy();
	
	// TODO: Add your message handler code here
}

BOOL CLeftTab::AddView(LPCTSTR lpszLabel, CRuntimeClass *pViewClass, CCreateContext *pContext)
{	

#ifdef _DEBUG
	ASSERT_VALID(this);
	ASSERT(pViewClass != NULL);
	ASSERT(pViewClass->IsDerivedFrom(RUNTIME_CLASS(CWnd)));
	ASSERT(AfxIsValidAddress(pViewClass, sizeof(CRuntimeClass), FALSE));
#endif

	CCreateContext context;
	if (pContext == NULL)
	{
		// if no context specified, generate one from the currently selected
		//  client if possible
		CView* pOldView = NULL;
		if (pOldView != NULL && pOldView->IsKindOf(RUNTIME_CLASS(CView)))
		{
			// set info about last pane
			ASSERT(context.m_pCurrentFrame == NULL);
			context.m_pLastView = pOldView;
			context.m_pCurrentDoc = pOldView->GetDocument();
			if (context.m_pCurrentDoc != NULL)
				context.m_pNewDocTemplate =
				context.m_pCurrentDoc->GetDocTemplate();
		}
		pContext = &context;
	}
	
	CWnd* pWnd;
	TRY
	{
		pWnd = (CWnd*)pViewClass->CreateObject();
		if (pWnd == NULL)
			AfxThrowMemoryException();
	}
	CATCH_ALL(e)
	{
		TRACE0("Out of memory creating a view.\n");
		// Note: DELETE_EXCEPTION(e) not required
		return FALSE;
	}
	END_CATCH_ALL
		
    ASSERT_KINDOF(CWnd, pWnd);
	ASSERT(pWnd->m_hWnd == NULL);       // not yet created
	
	DWORD dwStyle = AFX_WS_DEFAULT_VIEW;
	CRect rect;
	// Create with the right size and position
	if (!pWnd->Create(NULL, NULL, dwStyle, rect, this, 0, pContext))
	{
		TRACE0("Warning: couldn't create client pane for view.\n");
		// pWnd will be cleaned up by PostNcDestroy
		return FALSE;
	}
	m_pActiveView = (CView*) pWnd;

	TCB_ITEM *pMember=new TCB_ITEM;
	pMember->pWnd=pWnd;
	strcpy(pMember->szLabel, lpszLabel);
	m_views.AddTail(pMember);

	// ToolTip support for tabs.
	if((m_views.GetCount()-1)==0) {
		m_ToolTip->AddTool( this, lpszLabel,
			NULL, m_views.GetCount()-1 );
	}
	else {
		m_ToolTip->AddTool( this, lpszLabel,
			CRect(0,0,0,0), m_views.GetCount()-1 );
	}
	
	int nViews = m_views.GetCount();
	if (nViews!=1)
	{
		pWnd->EnableWindow(FALSE);
		pWnd->ShowWindow(SW_HIDE);
	}
	else
	{
        ((CFrameWnd *)(GetParent()->GetParent()))->SetActiveView(m_pActiveView);
//		((CFrameWnd *)GetParent())->SetActiveView((CView *)m_pActiveView);
	}

	TC_ITEM tci;
	tci.mask = TCIF_TEXT | TCIF_IMAGE;
	tci.pszText = (LPTSTR)(LPCTSTR)lpszLabel;
	tci.iImage = nViews-1;
    InsertItem(nViews, &tci);
//	m_tabctrl.InsertItem(nViews, &tci);

	return TRUE;
}

void CLeftTab::RemoveView(int nView)
{
	ASSERT_VALID(this);
	ASSERT(nView >= 0);

	// remove the page from internal list
	m_views.RemoveAt(m_views.FindIndex(nView));
}

void CLeftTab::SetActiveView(int nNewTab)
{
	ASSERT_VALID(this);
	ASSERT(nNewTab >= 0);

	if (nNewTab!=-1 && nNewTab!=m_nActiveTab)
	{
        TCB_ITEM *newMember=m_views.GetAt(m_views.FindIndex(nNewTab));
        TCB_ITEM *oldMember=NULL;
		
        if (m_nActiveTab!=-1)
        {
            oldMember=m_views.GetAt(m_views.FindIndex(m_nActiveTab));
            oldMember->pWnd->EnableWindow(FALSE);
            oldMember->pWnd->ShowWindow(SW_HIDE);
        }
        newMember->pWnd->EnableWindow(TRUE);
        newMember->pWnd->ShowWindow(SW_SHOW);
        newMember->pWnd->SetFocus();

        m_pActiveView = (CView *)newMember->pWnd;
        ((CFrameWnd *)(GetParent()->GetParent()))->SetActiveView(m_pActiveView);
//		((CFrameWnd *)GetParent())->SetActiveView(m_pActiveView);

        m_nActiveTab = nNewTab;
		// select the tab (if tab programmatically changed)
        SetCurSel(m_nActiveTab);
//		m_tabctrl.SetCurSel(m_nActiveTab);
    }
}

void CLeftTab::SetActiveView(CRuntimeClass *pViewClass)
{
	ASSERT_VALID(this);
	ASSERT(pViewClass != NULL);
	ASSERT(pViewClass->IsDerivedFrom(RUNTIME_CLASS(CWnd)));
	ASSERT(AfxIsValidAddress(pViewClass, sizeof(CRuntimeClass), FALSE));

	int nNewTab = 0;
	for (POSITION pos=m_views.GetHeadPosition(); pos; m_views.GetNext(pos))
	{
		TCB_ITEM *pMember=m_views.GetAt(pos);
		if (pMember->pWnd->IsKindOf(pViewClass))
		{
			//first hide old first view
            m_pActiveView->EnableWindow(FALSE);
            m_pActiveView->ShowWindow(SW_HIDE);
			
			// set new active view
			m_pActiveView = (CView*)pMember->pWnd;
			// enable, show, set focus to new view
			m_pActiveView->EnableWindow(TRUE);
			m_pActiveView->ShowWindow(SW_SHOW);
			m_pActiveView->SetFocus();
			
            ((CFrameWnd *)(GetParent()->GetParent()))->SetActiveView(m_pActiveView);
//			((CFrameWnd *)GetParent())->SetActiveView(m_pActiveView);

	        m_nActiveTab = nNewTab;
			// select the tab
            SetCurSel(m_nActiveTab);
//			m_tabctrl.SetCurSel(m_nActiveTab);

			break;
		}
		nNewTab++;
    }
}

CView* CLeftTab::GetActiveView()
{
	return m_pActiveView;
}

CView* CLeftTab::GetView(int nView)
{
	ASSERT_VALID(this);
	ASSERT(nView >= 0);

	if (nView!=-1)
	{
        TCB_ITEM *pMember=m_views.GetAt(m_views.FindIndex(nView));
		return (CView*)pMember->pWnd;
	}
	else
		return NULL;
}

CView* CLeftTab::GetView(CRuntimeClass *pViewClass)
{
	ASSERT_VALID(this);
	ASSERT(pViewClass != NULL);
	ASSERT(pViewClass->IsDerivedFrom(RUNTIME_CLASS(CWnd)));
	ASSERT(AfxIsValidAddress(pViewClass, sizeof(CRuntimeClass), FALSE));

	for (POSITION pos=m_views.GetHeadPosition(); pos; m_views.GetNext(pos))
	{
		TCB_ITEM *pMember=m_views.GetAt(pos);
		if (pMember->pWnd->IsKindOf(pViewClass))
		{
			return (CView*)pMember->pWnd;
		}
    }
	return NULL;
}

// *** K.Stowell
CImageList* CLeftTab::SetTabImageList(CImageList *pImageList)
{
    return SetImageList (pImageList);
//	return m_tabctrl.SetImageList (pImageList);
}

// *** K.Stowell
BOOL CLeftTab::ModifyTabStyle(DWORD dwRemove, DWORD dwAdd, UINT nFlags)
{
    return ModifyStyle(dwRemove, dwAdd);
//	return m_tabctrl.ModifyStyle(dwRemove, dwAdd);
}