//********************************************************************************
void CBCGPRibbonBackstageViewPanel::ReposActiveForm()
{
	ASSERT_VALID(this);

	CBCGPBaseRibbonElement* pSelected = m_pNewSelected != NULL ? m_pNewSelected : m_pSelected;

	if (pSelected != NULL)
	{
		ASSERT_VALID(pSelected);

		CBCGPBaseRibbonElement* pView = pSelected->GetBackstageAttachedView();
		if (pView != NULL)
		{
			ASSERT_VALID(pView);

			if (m_pMainButton != NULL)
			{
				ASSERT_VALID (m_pMainButton);
				ASSERT_VALID (m_pMainButton->GetParentRibbonBar ());

				pView->SetRect(m_rectRight);

				CClientDC dc(m_pMainButton->GetParentRibbonBar());

				CFont* pOldFont = dc.SelectObject (m_pMainButton->GetParentRibbonBar()->GetFont());
				ASSERT (pOldFont != NULL);

				pView->OnAfterChangeRect(&dc);
				m_sizeRightView = pView->GetSize(&dc);

				dc.SelectObject (pOldFont);

				if (m_pNewSelected != NULL)
				{
					RedrawElement(pView);
				}
			}
		}
	}
}
//**********************************************************************************
void CBCGPRibbonBackstageViewPanel::OnPageTransitionFinished()
{
	ASSERT_VALID(this);

	if (m_pNewSelected == NULL)
	{
		return;
	}

	ASSERT_VALID(m_pNewSelected);

	if (m_pSelected != NULL)
	{
		ASSERT_VALID(m_pSelected);

		CBCGPBaseRibbonElement* pView = m_pSelected->GetBackstageAttachedView();
		if (pView != NULL)
		{
			ASSERT_VALID(pView);
			pView->SetRect(CRect(0, 0, 0, 0));
			pView->OnAfterChangeRect(NULL);
		}
		
		m_pSelected->m_bIsChecked = FALSE;
		RedrawElement(m_pSelected);
	}

	m_pSelected = m_pNewSelected;

	ReposActiveForm();
	AdjustScrollBars();
	ReposActiveForm();

	RedrawElement(m_pSelected);

	m_pNewSelected = NULL;
}
//**********************************************************************************
void CBCGPRibbonBackstageViewPanel::SelectView(CBCGPBaseRibbonElement* pElem)
{
	ASSERT_VALID(this);

	m_pNewSelected = NULL;

	if (pElem == NULL)
	{
		return;
	}

	ASSERT_VALID(pElem);

	if (pElem->IsDisabled())
	{
		return;
	}

	if (pElem != m_pSelected && pElem->GetBackstageAttachedView() != NULL)
	{
		if (m_pSelected != NULL)
		{
			ASSERT_VALID(m_pSelected);

			if (m_pMainButton->GetParentRibbonBar () != NULL)
			{
				ASSERT_VALID (m_pMainButton->GetParentRibbonBar ());

				m_PageTransitionEffect = m_pMainButton->GetParentRibbonBar ()->GetBackstagePageTransitionEffect();
				m_nPageTransitionTime = m_pMainButton->GetParentRibbonBar ()->GetBackstagePageTransitionTime();
			}

			if (m_bSelectedByMouseClick && m_PageTransitionEffect != BCGPPageTransitionNone && !globalData.IsHighContastMode())
			{
				m_bSelectedByMouseClick = FALSE;

				CBCGPRibbonBackstageViewItemForm* pForm1 = DYNAMIC_DOWNCAST(CBCGPRibbonBackstageViewItemForm, m_pSelected->GetBackstageAttachedView());
				if (pForm1 != NULL && pForm1->m_pWndForm->GetSafeHwnd() != NULL)
				{
					HWND hwndPanel = GetParentMenuBar()->GetSafeHwnd();
					GetParentMenuBar()->SetRedraw(FALSE);

					CBCGPRibbonBackstageViewItemForm* pForm2 = DYNAMIC_DOWNCAST(CBCGPRibbonBackstageViewItemForm, pElem->GetBackstageAttachedView());
					if (pForm2 != NULL && hwndPanel != NULL)
					{
						if (pForm2->m_pWndForm == NULL)
						{
							pForm2->m_pWndForm = pForm2->OnCreateFormWnd();
						}

						if (pForm2->m_pWndForm->GetSafeHwnd() != NULL)
						{
							m_pNewSelected = pElem;

							ReposActiveForm();

							pForm1->m_pWndForm->ShowWindow(SW_HIDE);
							pForm2->m_pWndForm->ShowWindow(SW_HIDE);

							CSize szPageMax(m_rect.Width(), 0);

							m_clrFillFrame = CBCGPVisualManager::GetInstance()->IsRibbonBackstageWhiteBackground() ?
								RGB(255, 255, 255) : globalData.clrBarFace;

							m_pNewSelected->m_bIsChecked = TRUE;
							m_pSelected->m_bIsChecked = FALSE;

							if (StartPageTransition(hwndPanel,
								pForm1->m_pWndForm->GetSafeHwnd(), pForm2->m_pWndForm->GetSafeHwnd(),
								m_pSelected->GetRect().top > pElem->GetRect().top, CSize(0, 0), szPageMax))
							{
								RedrawElement(m_pSelected);
								return;
							}

							GetParentMenuBar()->SetRedraw(TRUE);
						}
					}
				}
			}

			CBCGPBaseRibbonElement* pView = m_pSelected->GetBackstageAttachedView();
			if (pView != NULL)
			{
				ASSERT_VALID(pView);
				pView->SetRect(CRect(0, 0, 0, 0));
				pView->OnAfterChangeRect(NULL);
			}

			m_pSelected->m_bIsChecked = FALSE;
			RedrawElement(m_pSelected);
		}

		m_pSelected = pElem;
		m_pSelected->m_bIsChecked = TRUE;

		ReposActiveForm();
		AdjustScrollBars();
		ReposActiveForm();

		RedrawElement(m_pSelected);
	}
}
//********************************************************************************
void CBCGPRibbonButtonsGroup::OnAfterChangeRect (CDC* pDC)
{
	ASSERT_VALID (this);

	BOOL bIsFirst = TRUE;

	const BOOL bIsOnStatusBar = IsStatusBarMode();
	const BOOL bIsQATOnBottom = IsQAT () && !m_pRibbonBar->IsQuickAccessToolbarOnTop ();

	const int nMarginX = IsQAT () ? 2 : 0;
	const int nMarginTop = bIsQATOnBottom ? 2 : bIsOnStatusBar ? 1 : 0;
	const int nMarginBottom = (IsQAT () || bIsOnStatusBar) ? 1 : 0;

	const int nButtonHeight = m_rect.Height () - nMarginTop - nMarginBottom;

	CRect rectGroup = m_rect;

	if (!IsQAT() && !bIsOnStatusBar && m_pParentMenu == NULL)
	{
		rectGroup.DeflateRect(CBCGPVisualManager::GetInstance ()->GetRibbonButtonsGroupHorzMargin(), 0);
	}

	int x = rectGroup.left + nMarginX;

	int nCustomizeButtonIndex = -1;

	if (IsQAT () && m_arButtons.GetSize () > 0)
	{
		//---------------------------------------------
		// Last button is customize - it always visible.
		// Leave space for it:
		//---------------------------------------------
		nCustomizeButtonIndex = (int) m_arButtons.GetSize () - 1;

		CBCGPBaseRibbonElement* pButton = m_arButtons [nCustomizeButtonIndex];
		ASSERT_VALID (pButton);

		CSize sizeButton = pButton->GetSize (pDC);
		rectGroup.right -= sizeButton.cx;
	}

	BOOL bHasHiddenItems = FALSE;

	for (int i = 0; i < m_arButtons.GetSize (); i++)
	{
		CBCGPBaseRibbonElement* pButton = m_arButtons [i];
		ASSERT_VALID (pButton);

		pButton->m_bShowGroupBorder = TRUE;

		if (pButton->m_pRibbonBar != NULL && 
			!pButton->m_pRibbonBar->IsShowGroupBorder (this))
		{
			pButton->m_bShowGroupBorder = FALSE;
		}

		if (m_rect.IsRectEmpty ())
		{
			pButton->m_rect = CRect (0, 0, 0, 0);
			pButton->OnAfterChangeRect (pDC);
			continue;
		}

		BOOL bIsLast = i == m_arButtons.GetSize () - 1;

		pButton->SetParentCategory (m_pParent);

		CSize sizeButton = pButton->GetSize (pDC);
		sizeButton.cy = i != nCustomizeButtonIndex ? nButtonHeight : nButtonHeight - 1;

		const int y = i != nCustomizeButtonIndex ? rectGroup.top + nMarginTop : rectGroup.top;

		pButton->m_rect = CRect (CPoint (x, y), sizeButton);

		const BOOL bIsHiddenSeparator = bHasHiddenItems && pButton->IsSeparator ();

		if ((pButton->m_rect.right > rectGroup.right || bIsHiddenSeparator) &&
			i != nCustomizeButtonIndex)
		{
			pButton->m_rect = CRect (0, 0, 0, 0);
			bHasHiddenItems = TRUE;
		}
		else
		{
			x += sizeButton.cx;
		}

		pButton->OnAfterChangeRect (pDC);

		if (bIsFirst && bIsLast)
		{
			pButton->m_Location = RibbonElementSingleInGroup;
		}
		else if (bIsFirst)
		{
			pButton->m_Location = RibbonElementFirstInGroup;
		}
		else if (bIsLast)
		{
			pButton->m_Location = RibbonElementLastInGroup;
		}
		else
		{
			pButton->m_Location = RibbonElementMiddleInGroup;
		}

		bIsFirst = FALSE;
	}
}