//**********************************************************************
void CBCGPRibbonCustomizeRibbonPage::OnAdd() 
{
	ASSERT_VALID (m_pRibbonBar);

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

		UINT nContextID = GetNewTabContextID();

		CBCGPRibbonCategory* pNewTab = m_pSelCategorySrc->CreateCustomCopy(m_pRibbonBar);
		ASSERT_VALID(pNewTab);

		pNewTab->m_uiContextID = nContextID;
		pNewTab->m_bIsVisible = nContextID == 0;

		if (nContextID != 0)
		{
			pNewTab->SetTabColor(m_pRibbonBar->GetContextColor(nContextID));
		}

		m_pRibbonBar->AddCustomCategory(pNewTab, TRUE);
		m_CustomizationData.AddCustomTab(*pNewTab, GetNewTabIndex(), nContextID);

		RebuildDestTree((DWORD_PTR)pNewTab, TRUE);
		m_wndRibbonTreeSrc.MoveSelection(TRUE);
		return;
	}

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

		CBCGPRibbonCategory* pParentCategory = m_pSelCategoryDest;
		if (pParentCategory == NULL)
		{
			if (m_pSelPanelDest != NULL)
			{
				ASSERT_VALID(m_pSelPanelDest);
				pParentCategory = m_pSelPanelDest->GetParentCategory();
			}
			else if (m_pSelElemDest != NULL)
			{
				ASSERT_VALID(m_pSelElemDest);
				pParentCategory = m_pSelElemDest->GetParentCategory();
			}
		}

		if (pParentCategory == NULL)
		{
			ASSERT(FALSE);
			return;
		}

		ASSERT_VALID(pParentCategory);

		if (pParentCategory->HasPanel(m_pSelPanelSrc))
		{
			if (m_CustomizationData.IsPanelHidden(m_pSelPanelSrc))
			{
				m_CustomizationData.ShowPanel(m_pSelPanelSrc, TRUE);
				RebuildDestTree((DWORD_PTR)m_pSelPanelSrc, TRUE);
			}
		}
		else
		{
			CBCGPRibbonPanel* pNewPanel = m_pSelPanelSrc->CreateCustomCopy(pParentCategory);
			ASSERT_VALID(pNewPanel);

			pNewPanel->m_bIsNew = TRUE;
			int nIndex = GetNewPanelIndex();

			pParentCategory->AddCustomPanel(pNewPanel, nIndex);
			m_CustomizationData.AddCustomPanel(*pNewPanel, nIndex);

			RebuildDestTree((DWORD_PTR)pNewPanel, TRUE);

			m_wndRibbonTreeSrc.MoveSelection(TRUE);
		}
		return;
	}

	if (m_pSelElemSrc != NULL)
	{
		ASSERT_VALID(m_pSelElemSrc);
		
		CBCGPRibbonPanel* pPanel = m_pSelPanelDest;
		if (pPanel == NULL)
		{
			if (m_pSelElemDest != NULL)
			{
				pPanel = m_pSelElemDest->GetParentPanel();
			}
		}

		if (pPanel == NULL)
		{
			ASSERT(FALSE);
			return;
		}

		ASSERT_VALID(pPanel);

		CBCGPBaseRibbonElement* pElem = m_pSelElemSrc->CreateCustomCopy();
		ASSERT_VALID (pElem);

		pElem->SetParentCategory(pPanel->GetParentCategory());
		pElem->m_bIsNew = TRUE;

		pPanel->Add(pElem);
		m_CustomizationData.AddCustomElement(*pPanel, *pElem);

		m_wndRibbonTreeSrc.MoveSelection(TRUE);

		RebuildDestTree((DWORD_PTR)pElem);
		return;
	}
}