/**
 * @file XTPFlowGraphPageHistory.cpp
 *
 * @copyright
 * (c) 1998-2025 Codejock Software, All Rights Reserved.
 *
 * This source file is the property of Codejock Software and must not be
 * redistributed by any means without the explicit written permission of
 * Codejock Software.
 *
 * The use of this source code is governed by the terms and conditions specified
 * in the Toolkit Pro license agreement. Codejock Software grants you, as a
 * single software developer, the limited right to use this software on one
 * computer only.
 *
 * Contact Information:
 * support@codejock.com
 * http://www.codejock.com
 *
 */

#include "stdafx.h"

#include "Common/XTPTypeId.h"
#include "Common/XTPFramework.h"
#include "Common/ScrollBar/XTPScrollBase.h"
#include "Common/XTPSystemHelpers.h"

#include "FlowGraph/XTPFlowGraphElement.h"
#include "FlowGraph/XTPFlowGraphControl.h"
#include "FlowGraph/XTPFlowGraphNode.h"
#include "FlowGraph/XTPFlowGraphPageHistory.h"
#include "FlowGraph/XTPFlowGraphIIDs.h"

#include "Common/Base/Diagnostic/XTPDisableNoisyWarnings.h"

#ifdef _DEBUG
#	define new DEBUG_NEW
#	undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

CXTPFlowGraphPageHistory::CXTPFlowGraphPageHistory(CXTPFlowGraphControl* pControl)
{
	m_pControl = pControl;

#ifdef _XTP_ACTIVEX
	EnableAutomation();
	EnableTypeLib();
#endif
}

CXTPFlowGraphPageHistory::~CXTPFlowGraphPageHistory()
{
}

BOOL CXTPFlowGraphPageHistory::CanGoBackward() const
{
	return m_arrPageUndo.GetSize() > 0;
}

BOOL CXTPFlowGraphPageHistory::CanGoForward() const
{
	return m_arrPageRedo.GetSize() > 0;
}

void CXTPFlowGraphPageHistory::AnimatePageTransition(CXTPFlowGraphNode* pNodeFrom,
													 CXTPFlowGraphNode* pNodeTo)
{
	_ASSERTE(pNodeFrom && pNodeTo && pNodeFrom->GetPage() != pNodeTo->GetPage());

	if (!pNodeFrom || !pNodeTo)
		return;

	CXTPFlowGraphPageHistoryItem hi = { pNodeFrom, pNodeTo };

	m_arrPageUndo.Add(hi);
	m_arrPageRedo.RemoveAll();

	m_pControl->AnimatePageTransition(pNodeFrom, pNodeTo);
};

void CXTPFlowGraphPageHistory::GoBackward()
{
	if (m_arrPageUndo.GetSize() == 0)
		return;

	CXTPFlowGraphPageHistoryItem hi = m_arrPageUndo[m_arrPageUndo.GetSize() - 1];
	m_arrPageUndo.RemoveAt(m_arrPageUndo.GetSize() - 1);

	m_arrPageRedo.Add(hi);

	m_pControl->AnimatePageTransition(hi.pTo, hi.pFrom);
}

void CXTPFlowGraphPageHistory::GoForward()
{
	if (m_arrPageRedo.GetSize() == 0)
		return;

	CXTPFlowGraphPageHistoryItem hi = m_arrPageRedo[m_arrPageRedo.GetSize() - 1];
	m_arrPageRedo.RemoveAt(m_arrPageRedo.GetSize() - 1);

	m_arrPageUndo.Add(hi);

	m_pControl->AnimatePageTransition(hi.pFrom, hi.pTo);
}

void CXTPFlowGraphPageHistory::Clear()
{
	m_arrPageRedo.RemoveAll();
	m_arrPageUndo.RemoveAll();
}

#ifdef _XTP_ACTIVEX

BEGIN_DISPATCH_MAP(CXTPFlowGraphPageHistory, CXTPCmdTarget)
	DISP_FUNCTION_ID(CXTPFlowGraphPageHistory, "GoBackward", 1000, GoBackward, VT_EMPTY, VTS_NONE)
	DISP_FUNCTION_ID(CXTPFlowGraphPageHistory, "GoForward", 1001, GoForward, VT_EMPTY, VTS_NONE)
	DISP_PROPERTY_EX_ID(CXTPFlowGraphPageHistory, "CanGoBackward", 1002, CanGoBackward,
						SetNotSupported, VT_BOOL)
	DISP_PROPERTY_EX_ID(CXTPFlowGraphPageHistory, "CanGoForward", 1003, CanGoForward,
						SetNotSupported, VT_BOOL)
	DISP_FUNCTION_ID(CXTPFlowGraphPageHistory, "Clear", 1004, Clear, VT_EMPTY, VTS_NONE)
	DISP_FUNCTION_ID(CXTPFlowGraphPageHistory, "AnimatePageTransition", 1015,
					 OleAnimatePageTransition, VT_EMPTY, VTS_DISPATCH VTS_DISPATCH)
END_DISPATCH_MAP()

BEGIN_INTERFACE_MAP(CXTPFlowGraphPageHistory, CXTPCmdTarget)
	INTERFACE_PART(CXTPFlowGraphPageHistory, XTPDIID_FlowGraphPageHistory, Dispatch)
END_INTERFACE_MAP()

IMPLEMENT_OLETYPELIB_EX(CXTPFlowGraphPageHistory, XTPDIID_FlowGraphPageHistory)

void CXTPFlowGraphPageHistory::OleAnimatePageTransition(LPDISPATCH lpDispFrom, LPDISPATCH lpDispTo)
{
	CXTPFlowGraphNode* pNodeFrom = XTP_DYNAMIC_DOWNCAST_REMOTE_(
		CXTPFlowGraphNode, CXTPFlowGraphNode::FromIDispatchSafe(lpDispFrom));
	CXTPFlowGraphNode* pNodeTo = XTP_DYNAMIC_DOWNCAST_REMOTE_(CXTPFlowGraphNode,
															  CXTPFlowGraphNode::FromIDispatchSafe(
																  lpDispTo));

	if (NULL == pNodeFrom || NULL == pNodeTo)
	{
		AfxThrowOleException(E_INVALIDARG);
	}

	AnimatePageTransition(pNodeFrom, pNodeTo);
}

#endif