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// XTPFlowGraphPageHistory.h: interface for the CXTPFlowGraphPageHistory class.
//
// This file is a part of the XTREME TOOLKIT PRO MFC class library.
// (c)1998-2012 Codejock Software, All Rights Reserved.
//
// THIS SOURCE FILE IS THE PROPERTY OF CODEJOCK SOFTWARE AND IS NOT TO BE
// RE-DISTRIBUTED BY ANY MEANS WHATSOEVER WITHOUT THE EXPRESSED WRITTEN
// CONSENT OF CODEJOCK SOFTWARE.
//
// THIS SOURCE CODE CAN ONLY BE USED UNDER THE TERMS AND CONDITIONS OUTLINED
// IN THE XTREME TOOLKIT PRO LICENSE AGREEMENT. CODEJOCK SOFTWARE GRANTS TO
// YOU (ONE SOFTWARE DEVELOPER) THE LIMITED RIGHT TO USE THIS SOFTWARE ON A
// SINGLE COMPUTER.
//
// CONTACT INFORMATION:
// support@codejock.com
// http://www.codejock.com
//
/////////////////////////////////////////////////////////////////////////////
//{{AFX_CODEJOCK_PRIVATE
#if !defined(__XTPFLOWGRAPHPAGEHISTORY_H__)
#define __XTPFLOWGRAPHPAGEHISTORY_H__
//}}AFX_CODEJOCK_PRIVATE
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
class CXTPFlowGraphControl;
class CXTPFlowGraphNodes;
class CXTPFlowGraphNodeGroups;
class CXTPFlowGraphConnections;
class CXTPFlowGraphDrawContext;
class CXTPPropExchange;
class CXTPFlowGraphSelectedElements;
class CXTPFlowGraphNode;
// ------------------------------------------------------------------
// Summary:
// Used internally to store node history for history operations.
// ------------------------------------------------------------------
struct CXTPFlowGraphPageHistoryItem
{
CXTPFlowGraphNode* pFrom; // Pointer to the previous node.
CXTPFlowGraphNode* pTo; // Pointer to the destination node.
};
// --------------------------------------------------------------------
//
// Summary:
// Object that contains page transition history for the flow graph.
// --------------------------------------------------------------------
class _XTP_EXT_CLASS CXTPFlowGraphPageHistory: public CXTPCmdTarget
{
public:
// -------------------------------------------------
// Summary:
// Constructs a CXTPFlowGraphPageHistory object.
// -------------------------------------------------
CXTPFlowGraphPageHistory(CXTPFlowGraphControl* pControl);
protected:
// -------------------------------------------------------------------
// Summary:
// Destroys a CXTPFlowGraphPageHistory object, handles cleanup and
// deallocation.
// -------------------------------------------------------------------
virtual ~CXTPFlowGraphPageHistory();
public:
// ---------------------------------------------------------------------
//
// Summary:
// Moves to the next page in the flow graphs history (if available).
// ---------------------------------------------------------------------
void GoForward();
// -------------------------------------------------------------
//
// Summary:
// Moves to the previous page in the flow graphs history (if
// available).
// -------------------------------------------------------------
void GoBackward();
// -----------------------------------------------------------
//
// Summary:
// Tests to see if a GoForward operation can be performed.
// Returns:
// True if a GoForward operation can be performed.
// -----------------------------------------------------------
BOOL CanGoForward() const;
// ---------------------------------------------------------------------
//
// Summary:
// Tests to see if a GoBack operation can be performed.
// Remarks:
// A GoForward or page transition operation must be performed before
// a GoBack operation can be performed.
// Returns:
// True if a GoBack operation can be performed.
// ---------------------------------------------------------------------
BOOL CanGoBackward() const;
// -----------------------------------------
//
// Summary:
// Clears the history of the flow graph.
// -----------------------------------------
void Clear();
// ---------------------------------------------------------------------------
//
// Summary:
// This method will transition from a node on one page to a node on
// another page.
// Parameters:
// pNodeFrom : Reference to a node on the current page to transition
// from.
// pNodeTo : Reference to a node on a different page to transition
// to.
//
// Remarks:
// AnimatePageTransition will transition from a node on the current
// page to a node on a different page. This will cause the active
// page to change to the page that contains the transitioned to node.
//
//
// ---------------------------------------------------------------------------
void AnimatePageTransition(CXTPFlowGraphNode* pNodeFrom, CXTPFlowGraphNode* pNodeTo);
protected:
CXTPFlowGraphControl* m_pControl; // Pointer to the parent flow graph control.
CArray<CXTPFlowGraphPageHistoryItem, CXTPFlowGraphPageHistoryItem&> m_arrPageUndo; // Contains all the undo actions from the history.
CArray<CXTPFlowGraphPageHistoryItem, CXTPFlowGraphPageHistoryItem&> m_arrPageRedo; // Contains all the redo actions from the history.
};
#endif //#if !defined(__XTPFLOWGRAPHPAGEHISTORY_H__)