void CPageContainer::ActivatePage(int i)
{
if (i == current) return ;
CPageSite *site = pages[i];
if (current != -1) DeactivatePage(current);
current = i;
// select specified tab
form->tabs.SetCurSel(i);
// resize parent
form->ResizeToFit(site->size);
// now display the page
CRect rc_client;
form->tabs.GetClientRect(&rc_client);
form->tabs.AdjustRect(FALSE, &rc_client);
// show the page
site->Activate(form->tabs, rc_client);
form->Invalidate();
}
// Activate the page with the specified dialog resource
void CNewWizDialog::SetActivePageByResource(UINT nResourceID)
{
CNewWizPage* pPage = GetPageByResourceID(nResourceID);
if (pPage == NULL) return;
if (!DeactivatePage()) return;
ActivatePage(pPage);
}
void CPageContainer::Clear()
{
if (current != -1) DeactivatePage(current);
// release all pages
for (int i=0; i<pages.GetCount(); i++) {
CPageSite *site = pages[i];
// make it go away
site->CloseSite();
delete site;
}
pages.RemoveAll();
current = -1;
// kick all pages in the tab control
form->tabs.DeleteAllItems();
}
// Set first page as active page
BOOL CNewWizDialog::SetFirstPage()
{
CNewWizPage* pPage = GetFirstPage();
if (!DeactivatePage()) return FALSE;
EnableBack(FALSE);
if (m_PageList.GetCount() > 1)
{
EnableFinish(FALSE);
EnableNext(TRUE);
}
else // wizard has only one page
{
EnableFinish(TRUE);
EnableNext(FALSE);
}
if (ActivatePage(pPage)) return TRUE;
return FALSE;
}
// returns TRUE if the new page is activated
BOOL CNewWizDialog::ActivatePage(CNewWizPage* pPage)
{
ASSERT(m_nPlaceholderID != 0);
ASSERT(pPage != NULL);
ASSERT(::IsWindow(m_hWnd));
// if the page has not been created, then create it
if (pPage->m_bCreated == FALSE)
{
if (pPage->Create(pPage->m_nDialogID, this) == FALSE) return FALSE;
pPage->m_bCreated = TRUE;
pPage->m_pParent = this;
if (pPage->OnCreatePage() == FALSE) return FALSE;
}
// deactivate the current page
if (!DeactivatePage()) return FALSE;
CRect rect;
CWnd *pWnd = GetDlgItem(m_nPlaceholderID);
ASSERT(pWnd != NULL);
ASSERT(IsWindow(pWnd->m_hWnd) != FALSE);
pWnd->GetWindowRect(&rect);
ScreenToClient(&rect);
pPage->SetWindowPos(NULL, rect.left, rect.top, 0, 0,
SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE );
pPage->EnableWindow(TRUE);
pPage->ShowWindow(SW_SHOW);
pPage->InvalidateRect(NULL);
pPage->UpdateWindow();
pPage->OnSetActive();
pPage->m_bActive = TRUE;
return TRUE;
}
