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CBaseFrame::stViewInfo CBaseFrame::m_ViewInfo[] =
{
{ IDD_MAIN_FORM, CBaseFrame::CREATE_ONCE, AFX_IDW_PANE_FIRST + 0, NULL },
{ IDD_WELCOME_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 1, NULL },
{ IDD_WIZZARD_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 2, NULL },
{ IDD_OPTIONS_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 3, NULL },
{ IDD_CNX_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 4, NULL },
{ IDD_SCHEDULE_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 5, NULL },
{ IDD_HISTORY_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 6, NULL },
{ IDD_ABOUT_DLG, CBaseFrame::CREATE_AND_DESTROY, AFX_IDW_PANE_FIRST + 7, NULL },
};
BOOL CBaseFrame::InitViews(UINT a_FirstViewId)
{
BOOL bRet = FALSE;
CView* pCurView = NULL;
int iCurViewIdx = -1;
if ((m_pMainApp != NULL) ){
m_pFrame = static_cast<CFrameWnd*>(m_pMainApp->m_pMainWnd);
if (m_pFrame != NULL){
pCurView = m_pFrame->GetActiveView();
if (pCurView != NULL){
iCurViewIdx = GetIndexFromId( a_FirstViewId );
if (iCurViewIdx != -1){
m_ViewInfo[ iCurViewIdx ].pView = pCurView;
bRet = TRUE;
}
}
}
}
return bRet;
}
CView* CBaseFrame::CreateView( UINT a_ViewId, int a_iIndex )
{
CView* l_pView = NULL;
CDocument* l_pCurrentDoc = m_pFrame->GetActiveDocument();
// Initialize a CCreateContext to point to the active document.
// With this context, the new view is added to the document
// when the view is created in CView::OnCreate().
CCreateContext newContext;
newContext.m_pNewViewClass = NULL;
newContext.m_pNewDocTemplate = NULL;
newContext.m_pLastView = NULL;
newContext.m_pCurrentFrame = m_pFrame;
newContext.m_pCurrentDoc = l_pCurrentDoc;
CRect rect(0, 0, 0, 0); // gets resized later
switch (a_ViewId)
{
case IDD_MAIN_FORM: { l_pView = new CMainView(); break; }
case IDD_WELCOME_DLG: { l_pView = new CWelcomeView(); break; }
case IDD_WIZZARD_DLG: { l_pView = new CBackupSimView(); break; }
case IDD_OPTIONS_DLG: { l_pView = new COptionsView(); break; }
case IDD_CNX_DLG: { l_pView = new CConnectionView(); break; }
case IDD_SCHEDULE_DLG: { l_pView = new CScheduleView(); break; }
case IDD_HISTORY_DLG: { l_pView = new CHistoryView(); break; }
case IDD_ABOUT_DLG: { l_pView = new CAboutView(); break; }
}
// views are created with the style of AFX_WS_DEFAULT_VIEW
// In MFC 4.0, this is (WS_BORDER | WS_VISIBLE | WS_CHILD)
l_pView->Create(NULL, NULL,
(AFX_WS_DEFAULT_VIEW & ~WS_VISIBLE),
rect, m_pMainApp->m_pMainWnd,
m_ViewInfo[a_iIndex].iSysViewId, &newContext);
return l_pView;
}
//************************************************************************
// CMainApp::OnSwitchView()
//
// Purpose:
// Switch from one view to another. Save and validate current view's
// data to document - fail if validation fails.
//
// Parameters:
// UINT nIndex (of view to switch to)
//***********************************************************************
LRESULT CBaseFrame::OnSwitchView( WPARAM wParam, LPARAM lParam )
{
int iCurViewIdx = 0;
int iNewViewIdx = 0;
CView* pCurView = NULL;
CView* pNewView = NULL;
BOOL bDestroyOldView = FALSE;
UINT ViewId = (UINT) wParam;
CDocument* pCurrentDoc = GetActiveDocument();
BOOL bAutoDelete = FALSE;
//Get current active view
pCurView = m_pFrame->GetActiveView();
if ( pCurView == NULL)
return 0L;
//Get Curview and NextView index
iCurViewIdx = GetIndexFromView( pCurView );
iNewViewIdx = GetIndexFromId( wParam );
if ((iCurViewIdx == -1) || (iNewViewIdx == -1))
return 0L;
TRACE( _T("CViewMgr::SwitchView : pCurView[%d] = 0x%x\r\n"), iCurViewIdx, pCurView );
pNewView = m_ViewInfo[iNewViewIdx].pView;
// View is already displayed
if ( pNewView == pCurView ){
return 0L/*pCurView*/;
}
// New view is NULL - we must create it
if ( pNewView == NULL ){
pNewView = CreateView( ViewId, iNewViewIdx);
TRACE( _T("pNewView = 0x%x\r\n"), pNewView );
if (pNewView != NULL){
// Save new created view
m_ViewInfo[iNewViewIdx].pView = pNewView;
}
}//pView == NULL
// exchange view window ID's so RecalcLayout() works
UINT temp = ::GetWindowLong(pCurView->m_hWnd, GWL_ID);
::SetWindowLong(pCurView->m_hWnd, GWL_ID,
::GetWindowLong(pNewView->m_hWnd, GWL_ID));
::SetWindowLong(pNewView->m_hWnd, GWL_ID, temp);
// Hide Old view
pCurView->ShowWindow(SW_HIDE);
//OnInitialUpdate() is not called as a result of calling CreateView() above.
//It is not always called by the framework, so it is called here:
pNewView->OnInitialUpdate();
// Now show the new view
pNewView->ShowWindow(SW_SHOW);
m_pFrame->SetActiveView(pNewView);
m_pFrame->RecalcLayout();
pNewView->Invalidate();
//Make sure that the document won't be destroyed when the view is destroyed.
//m_bAutoDelete is a public, but non-documented member of CDocument.
if ( m_ViewInfo[iCurViewIdx].eCreationMode == CREATE_AND_DESTROY){
BOOL bAutoDelete = pCurrentDoc->m_bAutoDelete;
pCurrentDoc->m_bAutoDelete = FALSE;
pCurView->DestroyWindow();
pCurrentDoc->m_bAutoDelete = bAutoDelete;
}
// try to destroy old view
//if ( m_ViewInfo[iCurViewIdx].eCreationMode == CREATE_AND_DESTROY){
// ::SendMessage(pCurView->m_hWnd, WM_DESTROY, 0, 0);
// //pCurView->DestroyWindow();
// m_ViewInfo[iCurViewIdx].pView = NULL;
//}
return 0L/*pNewView*/;
} |
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