From 3628a707a38e1c590216c5983c9b97b9c742f86c Mon Sep 17 00:00:00 2001
From: mrDarker <mr.darker@163.com>
Date: 星期一, 24 三月 2025 09:01:42 +0800
Subject: [PATCH] Merge branch 'clh' into liuyang

---
 SourceCode/Bond/Servo/EqsGraphWnd.cpp | 2400 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 2,400 insertions(+), 0 deletions(-)

diff --git a/SourceCode/Bond/Servo/EqsGraphWnd.cpp b/SourceCode/Bond/Servo/EqsGraphWnd.cpp
new file mode 100644
index 0000000..8b8d441
--- /dev/null
+++ b/SourceCode/Bond/Servo/EqsGraphWnd.cpp
@@ -0,0 +1,2400 @@
+#include "stdafx.h"
+#include "EqsGraphWnd.h"
+#include "ColorTransfer.h"
+#include "MapPosWnd.h"
+
+
+#define INPIN		1
+#define OUTPIN		2
+
+#define ITEM_CX_SMALL	150
+#define ITEM_CY_SMALL	90
+#define ITEM_CX_NORMAL	250
+#define ITEM_CY_NORMAL	150
+#define ITEM_CX_LARGE	400
+#define ITEM_CY_LARGE	240
+
+#define HT_NOWHERE		0x1
+#define HT_ITEM			0x2
+#define HT_PIN			0x4
+#define HT_LINE			0x8
+
+#define PINWIDTH		8
+#define PINHEIGHT		12
+
+#define TIMER_FLASH				1
+#define TIMER_ANIMATION_RECT	2
+
+#define MAPPOSSIZE					150
+#define MAPPOSWND_PADDING_RIGHT		12
+#define MAPPOSWND_ID				1001
+
+CEqsGraphWnd::CEqsGraphWnd()
+{
+	m_bUseGdiPlus = TRUE;
+	m_hWnd = NULL;
+	m_crFrame = GetSysColor(COLOR_WINDOWFRAME);
+	m_crBkgnd = RGB(255, 255, 255);
+	m_listener.onConnectPin = nullptr;
+	m_listener.onCheckConnectPin = nullptr;
+	m_listener.onDisconnectPin = nullptr;
+	m_listener.onDeleteEqItem = nullptr;
+	m_listener.onEqItemPosChanged = nullptr;
+	m_listener.onDblckEqItem = nullptr;
+	m_listener.onRclickEqItem = nullptr;
+	m_crItemBackground[0] = RGB(218, 218, 218);
+	m_crItemBackground[1] = RGB(193, 208, 227);
+	m_crItemFrame[0] = RGB(128, 128, 128);
+	m_crItemFrame[1] = RGB(147, 172, 206);
+	m_crItemNameText[0] = RGB(0, 0, 0);
+	m_crItemNameText[1] = RGB(0, 0, 0);
+	m_crItemIdText[0] = CColorTransfer::ApproximateColor(m_crItemNameText[0], -0.3f);
+	m_crItemIdText[1] = m_crItemIdText[0];
+	m_nCurSel = -1;
+	m_bMultiSelect = FALSE;
+	m_nItemRound = 0;
+	m_pCurItem = NULL;
+	m_pCurPin = NULL;
+	m_pSelLineOutPin = NULL;
+	m_crPinBkgnd[0] = RGB(218, 218, 218);
+	m_crPinBkgnd[1] = RGB(193, 0, 0);
+	m_crPinBkgnd[2] = RGB(193, 0, 0);
+	m_nStageCx = 4000;
+	m_nStageCy = 3000;
+	m_nOffsetX = 0;
+	m_nOffsetY = 0;
+	m_pFlashItem = NULL;
+	m_nFlashCount = 0;
+	m_hWndMapPos = NULL;
+	m_bEnableScroll = FALSE;
+	m_nMagneticLinHoz = 0;
+	m_nMagneticLinVer = 0;
+	m_hFontTitle = nullptr;
+
+}
+
+CEqsGraphWnd::~CEqsGraphWnd()
+{
+	ReleaseAllItems();
+}
+
+BOOL CEqsGraphWnd::RegisterWndClass()
+{
+	WNDCLASS wc;
+	wc.lpszClassName = EQSGRAPHWND_CLASS;
+	wc.hInstance = AfxGetInstanceHandle();
+	wc.lpfnWndProc = WindowProc;
+	wc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
+	wc.hIcon = 0;
+	wc.lpszMenuName = NULL;
+	wc.hbrBackground = NULL;
+	wc.style = CS_GLOBALCLASS | CS_DBLCLKS;
+	wc.cbClsExtra = 0;
+	wc.cbWndExtra = 0;
+
+	// 注册窗口类
+	return (::RegisterClass(&wc) != 0);
+}
+
+CEqsGraphWnd* CEqsGraphWnd::FromHandle(HWND hWnd)
+{
+	CEqsGraphWnd* pEqsGraphWnd = (CEqsGraphWnd*)::GetProp(hWnd, EQSGRAPHWND_TAG);
+	return pEqsGraphWnd;
+}
+
+CEqsGraphWnd* CEqsGraphWnd::Hook(HWND hWnd)
+{
+	CEqsGraphWnd* pEqsGraphWnd = (CEqsGraphWnd*)GetProp(hWnd, EQSGRAPHWND_TAG);
+	if (pEqsGraphWnd == NULL) {
+		pEqsGraphWnd = new CEqsGraphWnd();
+		pEqsGraphWnd->m_hWnd = hWnd;
+
+		SetProp(hWnd, EQSGRAPHWND_TAG, (HANDLE)pEqsGraphWnd);
+	}
+
+
+	return pEqsGraphWnd;
+}
+
+void CEqsGraphWnd::InitFont()
+{
+	HDC hDC = GetDC(NULL);
+	HFONT hFont = (HFONT)::GetStockObject(DEFAULT_GUI_FONT);
+
+	{
+		LOGFONT lf = { 0 };
+		::GetObject(hFont, sizeof(LOGFONT), &lf);
+		m_hFontName = CreateFontIndirect(&lf);
+	}
+
+	{
+		LOGFONT lf = { 0 };
+		::GetObject(hFont, sizeof(LOGFONT), &lf);
+
+		int nSize = int(-lf.lfHeight * 72.0 / GetDeviceCaps(hDC, LOGPIXELSY) + 0.5);
+		lf.lfHeight = MulDiv(0 - (nSize - 2), GetDeviceCaps(hDC, LOGPIXELSX), 72);
+		m_hFontId = CreateFontIndirect(&lf);
+	}
+
+	::ReleaseDC(NULL, hDC);
+}
+
+void CEqsGraphWnd::SetItemRound(int nRound)
+{
+	m_nItemRound = nRound;
+}
+
+void CEqsGraphWnd::SetDefaultItemBackgroundColor(COLORREF crNormal, COLORREF crSel)
+{
+	m_crItemBackground[0] = crNormal;
+	m_crItemBackground[1] = crSel;
+}
+
+void CEqsGraphWnd::SetDefaultItemFrameColor(COLORREF crNormal, COLORREF crSel)
+{
+	m_crItemFrame[0] = crNormal;
+	m_crItemFrame[1] = crSel;
+}
+
+void CEqsGraphWnd::SetDefaultItemTextColor(COLORREF crNormal, COLORREF crSel)
+{
+	m_crItemNameText[0] = crNormal;
+	m_crItemNameText[1] = crSel;
+
+	m_crItemIdText[0] = CColorTransfer::ApproximateColor(m_crItemNameText[0], -0.3f);
+	m_crItemIdText[1] = CColorTransfer::ApproximateColor(m_crItemNameText[1], -0.3f);
+}
+
+void CEqsGraphWnd::EnableScroll(BOOL bEnable)
+{
+	m_bEnableScroll = bEnable;
+}
+
+void CEqsGraphWnd::EnableMultiSelect()
+{
+	m_bMultiSelect = TRUE;
+}
+
+void CEqsGraphWnd::Init()
+{
+	InitFont();
+	CalculateScollbar();
+
+	long style = GetWindowLong(m_hWnd, GWL_STYLE);
+	SetWindowLong(m_hWnd, GWL_STYLE, style | WS_CLIPCHILDREN);
+
+	// MapPosWnd
+	if (m_hWndMapPos == NULL) {
+		m_hWndMapPos = CreateWindowEx(0, MAPPOSWND_CLASS,
+			NULL, WS_CHILD | WS_VISIBLE,
+			0, 0, 400, 400,
+			m_hWnd, (HMENU)MAPPOSWND_ID, NULL, NULL);
+
+		long styleex = GetWindowLong(m_hWndMapPos, GWL_EXSTYLE);
+		SetWindowLong(m_hWndMapPos, GWL_EXSTYLE, styleex | WS_EX_CLIENTEDGE);
+
+		CMapPosWnd *pMapPosWnd = CMapPosWnd::FromHandle(m_hWndMapPos);
+		pMapPosWnd->SetWndMaxSize(MAPPOSSIZE);
+		pMapPosWnd->SetStageSize(m_nStageCx, m_nStageCy, TRUE);
+	}
+}
+
+void CEqsGraphWnd::CalculateMapPos()
+{
+	CRect rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::OffsetRect(&rcClient, m_nOffsetX, m_nOffsetY);
+	CMapPosWnd *pMapPosWnd = CMapPosWnd::FromHandle(m_hWndMapPos);
+	pMapPosWnd->SetViewPort(&rcClient, TRUE);
+}
+
+void CEqsGraphWnd::CalculateScollbar()
+{
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+
+	// vert scroll
+	if(m_bEnableScroll) {
+		SCROLLINFO scrinffo;
+		scrinffo.cbSize = sizeof(SCROLLINFO);
+		scrinffo.fMask = SIF_ALL;
+		scrinffo.nMax = m_nStageCy;
+		scrinffo.nMin = 0;
+		scrinffo.nPos = m_nOffsetY;
+		scrinffo.nTrackPos = 0;
+		scrinffo.nPage = rcClient.bottom - rcClient.top;
+		SetScrollInfo(m_hWnd, SB_VERT, &scrinffo, TRUE);
+	}
+
+	// horz scroll
+	if (m_bEnableScroll) {
+		SCROLLINFO scrinffo;
+		scrinffo.cbSize = sizeof(SCROLLINFO);
+		scrinffo.fMask = SIF_ALL;
+		scrinffo.nMax = m_nStageCx;
+		scrinffo.nMin = 0;
+		scrinffo.nPos = m_nOffsetX;
+		scrinffo.nTrackPos = 0;
+		scrinffo.nPage = rcClient.right - rcClient.left;
+		SetScrollInfo(m_hWnd, SB_HORZ, &scrinffo, TRUE);
+	}
+}
+
+/*
+ * 计算磁力线位置
+ */
+void CEqsGraphWnd::CalculateMagneticLine(EQITEM* pItem, LPRECT lprcItemRect, int &hoz, int &ver)
+{
+	hoz = 0;
+	ver = 0;
+#define MAGNETIC_DIS		10
+
+	// 检测是否接近或对齐
+	for (int i = 0; i < m_arItem.GetSize(); i++) {
+		EQITEM *pTemp = (EQITEM*)m_arItem.GetAt(i);
+		if (pTemp != pItem) {
+			if (abs(lprcItemRect->left - pTemp->rect.left) < MAGNETIC_DIS) {
+				ver = pTemp->rect.left;
+				break;
+			}
+			else if (abs(lprcItemRect->right - pTemp->rect.right) < MAGNETIC_DIS) {
+				ver = pTemp->rect.right - (lprcItemRect->right- lprcItemRect->left);
+				break;
+			}
+		}
+	}
+	
+	for (int i = 0; i < m_arItem.GetSize(); i++) {
+		EQITEM* pTemp = (EQITEM*)m_arItem.GetAt(i);
+		if (pTemp != pItem) {
+			if (abs(lprcItemRect->top - pTemp->rect.top) < MAGNETIC_DIS) {
+				hoz = pTemp->rect.top;
+				break;
+			}
+			else if (abs(lprcItemRect->bottom - pTemp->rect.bottom) < MAGNETIC_DIS) {
+				hoz = pTemp->rect.bottom - (lprcItemRect->bottom - lprcItemRect->top);
+				break;
+			}
+		}
+	}
+}
+
+
+void CEqsGraphWnd::Release()
+{
+	::DeleteObject(m_hFontName);
+	::DeleteObject(m_hFontId);
+	if (m_hFontTitle != nullptr) {
+		::DeleteObject(m_hFontTitle);
+	}
+
+	// delete
+	delete this;
+}
+
+/*
+ * 取得In Pin的区域
+ * pItem -- EQITEM
+ * lpRect -- 得到的Rect
+ * 返回是否成功
+ */
+BOOL CEqsGraphWnd::GetItemRect(EQITEM* pItem, LPRECT lpRect)
+{
+	ASSERT(pItem);
+	if (pItem == m_pAnimationItem) {
+		lpRect->left = (int)(m_rcAnimation.left - m_nOffsetX);
+		lpRect->top = (int)(m_rcAnimation.top - m_nOffsetY);
+		lpRect->right = (int)(m_rcAnimation.right - m_nOffsetX);
+		lpRect->bottom = (int)(m_rcAnimation.bottom - m_nOffsetY);
+	}
+	else {
+		lpRect->left = (int)(pItem->rect.left - m_nOffsetX);
+		lpRect->top = (int)(pItem->rect.top - m_nOffsetY);
+		lpRect->right = (int)(pItem->rect.right - m_nOffsetX);
+		lpRect->bottom = (int)(pItem->rect.bottom - m_nOffsetY);
+	}
+
+	return TRUE;
+}
+
+BOOL CEqsGraphWnd::GetItemWarperRect(EQITEM* pItem, LPRECT lpRect)
+{
+	CopyRect(lpRect, &pItem->rect);
+	lpRect->left -= PINWIDTH;
+	lpRect->right += PINWIDTH;
+
+	return TRUE;
+}
+
+/*
+ * 取得In Pin的区域
+ * pItem -- EQITEM
+ * nPinIndex -- in pin索引
+ * lpRect -- 得到的Rect
+ * 返回是否成功
+ */
+BOOL CEqsGraphWnd::GetInPinRect(EQITEM* pItem, int nPinIndex, LPRECT lpRect)
+{
+	CPtrArray * pPins = (CPtrArray *)pItem->pInPins;
+	if (nPinIndex >= pPins->GetSize()) {
+		return FALSE;
+	}
+
+	int nBottomMargin = pPins->GetCount() >= 4 ? 8 : 0;
+	int nSpace = ((pItem->rect.bottom - nBottomMargin - pItem->rect.top) - (int)pPins->GetSize() * PINHEIGHT) / (pPins->GetSize() + 1);
+	lpRect->right = pItem->rect.left+1 - m_nOffsetX;
+	lpRect->left = lpRect->right - PINWIDTH;
+	lpRect->bottom = pItem->rect.top + (nSpace + PINHEIGHT) * (nPinIndex+1) - m_nOffsetY;
+	lpRect->top = lpRect->bottom - PINHEIGHT;
+
+	return TRUE;
+}
+
+/*
+ * 取得Out Pin的区域
+ * pItem -- EQITEM
+ * nPinIndex -- in pin索引
+ * lpRect -- 得到的Rect
+ * 返回是否成功
+ */
+BOOL CEqsGraphWnd::GetOutPinRect(EQITEM* pItem, int nPinIndex, LPRECT lpRect)
+{
+	CPtrArray * pPins = (CPtrArray *)pItem->pOutPins;
+	if (nPinIndex >= pPins->GetSize()) {
+		return FALSE;
+	}
+
+	int nSpace = ((pItem->rect.bottom - pItem->rect.top) - (int)pPins->GetSize() * PINHEIGHT) / (pPins->GetSize() + 1);
+	lpRect->left = pItem->rect.right-1 - m_nOffsetX;
+	lpRect->right = lpRect->left + PINWIDTH;
+	lpRect->bottom = pItem->rect.top + (nSpace + PINHEIGHT) * (nPinIndex + 1) - m_nOffsetY;
+	lpRect->top = lpRect->bottom - PINHEIGHT;
+
+	return TRUE;
+}
+
+/*
+ * 取得Pin的Point
+ * pItem -- EQITEM
+ * nPinIndex -- in pin索引
+ * lpRect -- 得到的Rect
+ * 返回是否成功
+ */
+BOOL CEqsGraphWnd::GetPinPoint(PIN *pPin, LPPOINT lpPoint)
+{
+	ASSERT(pPin);
+	ASSERT(pPin->pItem);
+	CPtrArray * pPins;
+	RECT rcPin;
+
+	// in pin?
+	pPins = (CPtrArray *)pPin->pItem->pInPins;
+	for(int i=0; i<pPins->GetCount(); i++) {
+		if (pPins->GetAt(i) == pPin) {
+			if (GetInPinRect(pPin->pItem, i, &rcPin)) {
+				lpPoint->x = rcPin.left + (rcPin.right - rcPin.left) / 2;
+				lpPoint->y = rcPin.top + (rcPin.bottom - rcPin.top) / 2;
+				return TRUE;
+			}
+		}
+	}
+
+	// out pin?
+	pPins = (CPtrArray *)pPin->pItem->pOutPins;
+	for (int i = 0; i<pPins->GetCount(); i++) {
+		if (pPins->GetAt(i) == pPin) {
+			if (GetOutPinRect(pPin->pItem, i, &rcPin)) {
+				lpPoint->x = rcPin.left + (rcPin.right - rcPin.left) / 2;
+				lpPoint->y = rcPin.top + (rcPin.bottom - rcPin.top) / 2;
+				return TRUE;
+			}
+		}
+	}
+
+	return FALSE;
+}
+
+void CEqsGraphWnd::ReleaseItem(EQITEM* pItem)
+{
+	ASSERT(pItem);
+
+	CPtrArray *pArray = (CPtrArray *)pItem->pInPins;
+	for (int j = 0; j < pArray->GetSize(); j++) {
+		PIN *pPin = (PIN *)pArray->GetAt(j);
+		if (pPin->pConnectedPin != NULL) {
+			pPin->pConnectedPin->pConnectedPin = NULL;
+		}
+		delete pPin;
+	}
+	delete pArray;
+
+	pArray = (CPtrArray *)pItem->pOutPins;
+	for (int j = 0; j < pArray->GetSize(); j++) {
+		PIN *pPin = (PIN *)pArray->GetAt(j);
+		if (pPin->pConnectedPin != NULL) {
+			pPin->pConnectedPin->pConnectedPin = NULL;
+		}
+		delete pPin;
+	}
+	delete pArray;
+
+	delete pItem;
+}
+
+void CEqsGraphWnd::ReleaseAllItems()
+{
+	for (int i = 0; i < m_arItem.GetCount(); i++) {
+		ReleaseItem((EQITEM*)m_arItem.GetAt(i));
+	}
+	m_arItem.RemoveAll();
+}
+
+int CEqsGraphWnd::GetPinState(PIN *pPin)
+{
+	if (pPin == m_pCurPin) {
+		return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * 清空PIN连接线缓存点,以便重新计算和绘制
+ */
+void CEqsGraphWnd::ClearConnectedLinePoint(EQITEM*& pItem)
+{
+	ASSERT(pItem);
+
+	CPtrArray *pPins;
+	PIN *pPin;
+
+	pPins = (CPtrArray *)pItem->pInPins;
+	for (int j = 0; j < pPins->GetSize(); j++) {
+		pPin = (PIN *)pPins->GetAt(j);
+		if (pPin->pConnectedPin != NULL) {
+			pPin->pConnectedPin->nLinePtCount = 0;
+		}
+	}
+
+	pPins = (CPtrArray *)pItem->pOutPins;
+	for (int j = 0; j < pPins->GetSize(); j++) {
+		pPin = (PIN *)pPins->GetAt(j);
+		pPin->nLinePtCount = 0;
+	}
+}
+
+void CEqsGraphWnd::SetOnListener(EqsGraphListener& listener)
+{
+	m_listener.onConnectPin = listener.onConnectPin;
+	m_listener.onCheckConnectPin = listener.onCheckConnectPin;
+	m_listener.onDisconnectPin = listener.onDisconnectPin;
+	m_listener.onDeleteEqItem = listener.onDeleteEqItem;
+	m_listener.onEqItemPosChanged = listener.onEqItemPosChanged;
+	m_listener.onDblckEqItem = listener.onDblckEqItem;
+	m_listener.onRclickEqItem = listener.onRclickEqItem;
+}
+
+BOOL CEqsGraphWnd::SetCurSel(int nSel)
+{
+	if (!(nSel == -1 || nSel < m_arItem.GetCount())) {
+		return FALSE;
+	}
+
+
+	m_nCurSel = nSel;
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	return TRUE;
+}
+
+BOOL CEqsGraphWnd::SetCurSel(CString strItemName)
+{
+	int nIndex = -1;
+	for (int i = 0; i < m_arItem.GetCount(); i++) {
+		EQITEM* pItem = (EQITEM*)m_arItem.GetAt(i);
+		if (strItemName.Compare(pItem->text) == 0) {
+			nIndex = i;
+			break;
+		}
+	}
+
+	if (nIndex == -1) {
+		return FALSE;
+	}
+
+	m_nCurSel = nIndex;
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	return TRUE;
+}
+
+BOOL CEqsGraphWnd::SetCurSel(DWORD_PTR pData)
+{
+	int nIndex = -1;
+	for (int i = 0; i < m_arItem.GetCount(); i++) {
+		EQITEM* pItem = (EQITEM*)m_arItem.GetAt(i);
+		if (pItem->pData == pData) {
+			nIndex = i;
+			break;
+		}
+	}
+
+	if (nIndex == -1) {
+		return FALSE;
+	}
+
+	m_nCurSel = nIndex;
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	return TRUE;
+}
+
+/*
+ * nType: ITEM_SMALL, ITEM_NORMAL or ITEM_LARGE
+ */
+EQITEM* CEqsGraphWnd::AddItem(int id, CString strText, DWORD_PTR dwData, int nType/* = ITEM_NORMAL*/)
+{
+	// 需要计算一个新位置,不然全部重叠在一起
+	int x, y;
+	x = (m_arItem.GetCount() % 4) * 218;
+	y = (m_arItem.GetCount() / 4) * 168;
+
+
+	EQITEM* pItem = new EQITEM;
+	memset(pItem, 0, sizeof(EQITEM));
+	pItem->id = id;
+	pItem->nShowType = nType;
+	pItem->rect.left = x + 20 + m_nOffsetX;
+	pItem->rect.top = y + 50 + m_nOffsetY;
+	if (pItem->nShowType == ITEM_SMALL) {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_SMALL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_SMALL;
+	}
+	else if(pItem->nShowType == ITEM_LARGE){
+		pItem->rect.right = pItem->rect.left + ITEM_CX_LARGE;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_LARGE;
+	}
+	else {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_NORMAL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_NORMAL;
+	}
+
+	pItem->pData = dwData;
+	pItem->pInPins = (DWORD_PTR)new CPtrArray();
+	pItem->pOutPins = (DWORD_PTR)new CPtrArray();
+
+	int len = min(63, strText.GetLength());
+	memcpy(pItem->text, (LPTSTR)(LPCTSTR)strText, len);
+	pItem->text[len] = '\0';
+	m_arItem.Add(pItem);
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	return pItem;
+}
+
+void CEqsGraphWnd::RemoveItem(EQITEM* pItem)
+{
+	BOOL bChanged = FALSE;
+	if (m_listener.onDeleteEqItem != NULL) {
+		if (m_listener.onDeleteEqItem(m_pCurItem)) {
+			bChanged = DeleteItem(m_pCurItem) >= 0;
+		}
+	}
+
+
+	if (bChanged) {
+		if (pItem == m_pCurItem) {
+			m_pCurItem = NULL;
+		}
+		RECT rcClient;
+		GetClientRect(m_hWnd, &rcClient);
+		::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	}
+}
+
+void CEqsGraphWnd::SetItemText(EQITEM* pItem, CString strText)
+{
+	int len = min(63, strText.GetLength());
+	memcpy(pItem->text, (LPTSTR)(LPCTSTR)strText, len);
+	pItem->text[len] = '\0';
+
+	::InvalidateRect(m_hWnd, &pItem->rect, TRUE);
+}
+
+void CEqsGraphWnd::SetItemType(EQITEM* pItem, int nType)
+{
+	pItem->nShowType = nType;
+	if (pItem->nShowType == ITEM_SMALL) {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_SMALL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_SMALL;
+	}
+	else if (pItem->nShowType == ITEM_LARGE) {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_LARGE;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_LARGE;
+	}
+	else {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_NORMAL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_NORMAL;
+	}
+
+	::InvalidateRect(m_hWnd, &pItem->rect, TRUE);
+}
+
+void CEqsGraphWnd::SetItemPos(EQITEM* pItem, int x, int y)
+{
+	ASSERT(pItem);
+	pItem->rect.left = x;
+	pItem->rect.top = y;
+	if (pItem->nShowType == ITEM_SMALL) {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_SMALL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_SMALL;
+	}
+	else if (pItem->nShowType == ITEM_LARGE) {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_LARGE;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_LARGE;
+	}
+	else {
+		pItem->rect.right = pItem->rect.left + ITEM_CX_NORMAL;
+		pItem->rect.bottom = pItem->rect.top + ITEM_CY_NORMAL;
+	}
+
+	::InvalidateRect(m_hWnd, &pItem->rect, TRUE);
+}
+
+PIN * CEqsGraphWnd::AddPin(EQITEM* pItem, int nType, CString strName, DWORD_PTR dwData)
+{
+	ASSERT(pItem);
+	ASSERT(nType == INPIN || nType == OUTPIN);
+	ASSERT(pItem->pInPins);
+	ASSERT(pItem->pOutPins);
+
+
+
+	PIN *pPin = new PIN;
+	memset(pPin, 0, sizeof(PIN));
+	pPin->pItem = pItem;
+	pPin->nIndex = nType == INPIN ? ((CPtrArray *)pItem->pInPins)->GetSize() : ((CPtrArray *)pItem->pOutPins)->GetSize();
+	pPin->nType = nType;
+	pPin->pData = dwData;
+
+	int len = MIN(sizeof(pPin->text), strName.GetLength());
+	memcpy(pPin->text, (LPTSTR)(LPCTSTR)strName, len);
+	pPin->text[len] = '\0';
+
+	CPtrArray *pArray = NULL;
+	if (nType == INPIN) {
+		pArray = (CPtrArray *)pItem->pInPins;
+	}
+	else {
+		pArray = (CPtrArray *)pItem->pOutPins;
+	}
+
+	ASSERT(pItem->pOutPins);
+	pArray->Add(pPin);
+
+	return pPin;
+}
+
+EQITEM* CEqsGraphWnd::GetItem(DWORD_PTR dwData)
+{
+	for (int i = 0; i < m_arItem.GetCount(); i++) {
+		EQITEM* pItem = (EQITEM*)m_arItem.GetAt(i);
+		if (pItem->pData == dwData) {
+			return pItem;
+		}
+	}
+
+	return NULL;
+}
+
+PIN * CEqsGraphWnd::GetPin(DWORD_PTR dwItemData, DWORD_PTR dwPinData)
+{
+	EQITEM* pItem = GetItem(dwItemData);
+	if (pItem != NULL) {
+		CPtrArray *pArray = (CPtrArray *)pItem->pInPins;
+		for (int i = 0; i < pArray->GetCount(); i++) {
+			PIN *pPin = (PIN *)pArray->GetAt(i);
+			if (pPin->pData == dwPinData) {
+				return pPin;
+			}
+		}
+
+		pArray = (CPtrArray *)pItem->pOutPins;
+		for (int i = 0; i < pArray->GetCount(); i++) {
+			PIN *pPin = (PIN *)pArray->GetAt(i);
+			if (pPin->pData == dwPinData) {
+				return pPin;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+int CEqsGraphWnd::ConnectPin(DWORD_PTR dwItem1Data, DWORD_PTR dwPin1Data, DWORD_PTR dwItem2Data, DWORD_PTR dwPin2Data)
+{
+	PIN *pPin1, *pPin2;
+	
+	pPin1 = GetPin(dwItem1Data, dwPin1Data);
+	if (pPin1 == NULL) {
+		return -1;
+	}
+	
+	pPin2 = GetPin(dwItem2Data, dwPin2Data);
+	if (pPin2 == NULL) {
+		return -2;
+	}
+
+	pPin1->pConnectedPin = pPin2;
+	pPin2->pConnectedPin = pPin1;
+
+	return 0;
+}
+
+// 删除Item, 如果pin有连接,注意先断开
+int CEqsGraphWnd::DeleteItem(EQITEM* pItem)
+{
+	for (int i = 0; i < m_arItem.GetSize(); i++) {
+		if (pItem == (EQITEM*)m_arItem.GetAt(i)) {
+			m_arItem.RemoveAt(i);
+			ReleaseItem(pItem);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+void CEqsGraphWnd::DeleteAllItems()
+{
+	ReleaseAllItems();
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+}
+
+void CEqsGraphWnd::SetCurrentItem(EQITEM* pItem)
+{
+	if (m_pCurItem != NULL) {
+		m_pCurItem->bHighlight = FALSE;
+	}
+
+	m_pCurItem = pItem;
+	if (m_pCurItem != NULL) {
+		m_pCurItem->bHighlight = TRUE;
+	}
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+}
+
+/*
+ * 设置子项的选中状态
+ */
+void CEqsGraphWnd::SetItemSelectState(int nIndex, BOOL bSelect)
+{
+	if (nIndex >= m_arItem.GetCount()) {
+		return;
+	}
+
+	EQITEM *pItem = (EQITEM*)m_arItem.GetAt(nIndex);
+	pItem->bHighlight = bSelect;
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+}
+
+void CEqsGraphWnd::Notify(int nCode, int dwData, int dwData1/* = 0*/, int dwData2/* = 0*/)
+{
+	HWND hParent;
+	hParent = GetParent(m_hWnd);
+	if (hParent != NULL) {
+		EQSGRAPHWND_NMHDR nmhdr;
+		nmhdr.nmhdr.hwndFrom = m_hWnd;
+		nmhdr.nmhdr.idFrom = GetWindowLong(m_hWnd, GWL_ID);
+		nmhdr.nmhdr.code = nCode;
+		nmhdr.dwData = dwData;
+		nmhdr.dwData1 = dwData1;
+		nmhdr.dwData2 = dwData2;
+		SendMessage(hParent, WM_NOTIFY, (WPARAM)nmhdr.nmhdr.idFrom, (LPARAM)&nmhdr);
+	}
+}
+
+/*
+ * 检测坐标点所在的项
+ * 返回项类型, 如HT_ITEM, HT_PIN, HT_LINE
+ * pItem - 所在的EQITEM
+ * pPin --所在的pin, 如果在连线上,表示所属pin, out pin;
+ */
+int CEqsGraphWnd::HighTest(POINT pt, OUT EQITEM*& pItem, OUT PIN *& pPin)
+{
+	// 检测是否在某个子项
+	int nRet = HT_NOWHERE;
+	pItem = NULL;
+	pPin = NULL;
+	RECT rcItem;
+	for (int i = m_arItem.GetSize() - 1; i >= 0 ; i--) {
+		EQITEM *pTempItem = (EQITEM*)m_arItem.GetAt(i);
+		GetItemRect(pTempItem, &rcItem);
+		if (::PtInRect(&rcItem, pt)) {
+			// 在Item
+			pItem = pTempItem;
+			nRet = HT_ITEM;
+			break;
+		}
+		else {
+			RECT rcPin;
+			CPtrArray * pPins = (CPtrArray *)pTempItem->pInPins;
+			for (int j = 0; j < pPins->GetSize(); j++) {
+				if (GetInPinRect(pTempItem, j, &rcPin) && ::PtInRect(&rcPin, pt)) {
+					// 在in pin上
+					pPin = (PIN *)pPins->GetAt(j);
+					pItem = pTempItem;
+					nRet = HT_PIN;
+					break;
+				}
+			}
+
+			if (nRet == HT_NOWHERE) {
+				pPins = (CPtrArray *)pTempItem->pOutPins;
+				for (int j = 0; j < pPins->GetSize(); j++) {
+					if (GetOutPinRect(pTempItem, j, &rcPin) && ::PtInRect(&rcPin, pt)) {
+						// 在out pin
+						pPin = (PIN *)pPins->GetAt(j);
+						pItem = pTempItem;
+						nRet = HT_PIN;
+						break;
+					}
+					else {
+						// 是否在pin连接线上,即判断点是否在线上
+						// 点到直线的距离公式(先通过p1,p2用两点式求出直线的表达式,再套距离公式);abs()为取绝对值函数,sqrt()为开根号函数
+						PIN *pTempPin = (PIN *)pPins->GetAt(j);
+						if (pTempPin->pConnectedPin != NULL && pTempPin->nLinePtCount > 1) {
+							for (int i = 0; i < pTempPin->nLinePtCount - 1; i++) {
+								double distance = PointToSegDist(pt.x + m_nOffsetX, pt.y + m_nOffsetY,
+									pTempPin->ptConnectedLine[i].x, pTempPin->ptConnectedLine[i].y,
+									pTempPin->ptConnectedLine[i+1].x, pTempPin->ptConnectedLine[i+1].y);
+								if (distance < 5.0) {
+									nRet = HT_LINE;
+									pPin = pTempPin;
+									break;
+								}
+							}
+
+							if (nRet == HT_LINE) {
+								break;
+							}
+						}
+					}
+				}
+			}
+
+			if (nRet != HT_NOWHERE) {
+				break;
+			}
+		}
+	}
+
+
+	return nRet;
+}
+
+/*
+ * 绘制虚线框,代表正在拖动的item
+ */
+void CEqsGraphWnd::DrawDropItemRectangle(LPRECT lpRect1, LPRECT lpRect2)
+{
+	HDC hDC = GetDC(m_hWnd);
+	HBRUSH hBrush = CreateSolidBrush(RGB(255, 255, 255));
+	HPEN hPen = CreatePen(PS_DASH, 1, RGB(0, 0, 0));
+	int oldRop = SetROP2(hDC, R2_NOTXORPEN);
+	HBRUSH hOldBrush = (HBRUSH)::SelectObject(hDC, hBrush);
+	HBRUSH hOldPen = (HBRUSH)::SelectObject(hDC, hPen);
+
+	if (lpRect1 != NULL) {
+		::Rectangle(hDC, lpRect1->left, lpRect1->top, lpRect1->right, lpRect1->bottom);
+	}
+
+	if (lpRect2 != NULL) {
+		::Rectangle(hDC, lpRect2->left, lpRect2->top, lpRect2->right, lpRect2->bottom);
+	}
+
+	::SetROP2(hDC, oldRop);
+	::SelectObject(hDC, hOldBrush);
+	::SelectObject(hDC, hPen);
+	::DeleteObject(hBrush);
+	::DeleteObject(hOldPen);
+	::ReleaseDC(m_hWnd, hDC);
+}
+
+/*
+ * 绘制磁吸线
+ */
+void CEqsGraphWnd::DrawMagneticLine(LPRECT lprcClient, int nHozLine1, int nHozLine2, int nVerLine1, int nVerLine2)
+{
+	HDC hDC = GetDC(m_hWnd);
+	HPEN hPen = CreatePen(PS_DASH, 1, RGB(64, 64, 64));
+	int oldRop = SetROP2(hDC, R2_NOTXORPEN);
+	HBRUSH hOldPen = (HBRUSH)::SelectObject(hDC, hPen);
+
+	if (nHozLine1) {
+		::MoveToEx(hDC, 1, nHozLine1, NULL);
+		::LineTo(hDC, lprcClient->right-1, nHozLine1);
+	}
+	if (nHozLine2) {
+		::MoveToEx(hDC, 1, nHozLine2, NULL);
+		::LineTo(hDC, lprcClient->right - 1, nHozLine2);
+	}
+
+	if (nVerLine1) {
+		::MoveToEx(hDC, nVerLine1, 1, NULL);
+		::LineTo(hDC, nVerLine1, lprcClient->bottom - 1);
+	}
+	if (nVerLine2) {
+		::MoveToEx(hDC, nVerLine2, 1, NULL);
+		::LineTo(hDC, nVerLine2, lprcClient->bottom - 1);
+	}
+
+	::SetROP2(hDC, oldRop);
+	::SelectObject(hDC, hPen);
+	::DeleteObject(hOldPen);
+	::ReleaseDC(m_hWnd, hDC);
+}
+
+/*
+ * 缓制Pin连接线
+ * pBrush -- 画刷
+ * pPen - 画笔
+ * lpPt1, lpPt2 -- Pin脚的位置
+ * lpRect1, lpRect2 -- 两个Item的Rect
+ */
+void CEqsGraphWnd::DrawPinConnectedLine(Gdiplus::Graphics *pGraphics, Gdiplus::Brush *pBrush, Gdiplus::Pen *pPen, LPPOINT lpPt1, LPPOINT lpPt2,
+	LPRECT lpRect1, LPRECT lpRect2, PIN *pOwnerPin)
+{
+	// 如果没有缓存线条的POINT,则先计算并缓存
+	ASSERT(pOwnerPin);
+
+	int nPinCount = ((CPtrArray*)pOwnerPin->pItem->pOutPins)->GetSize();
+	int nArrowLen = 8;
+	int nStartMinX = 8;
+	int nMargin = 12;
+	int x1, x2, y1;
+
+	if (pOwnerPin->nLinePtCount == 0) {						// 第一个点的最小折线长
+		::OffsetRect(lpRect1, +m_nOffsetX, +m_nOffsetY);
+		::OffsetRect(lpRect2, +m_nOffsetX, +m_nOffsetY);
+		lpPt1->x += m_nOffsetX;				// 消除偏移
+		lpPt1->y += m_nOffsetY;
+		lpPt2->x += m_nOffsetX;
+		lpPt2->y += m_nOffsetY;
+		int nMinX = 10 + nMargin * nPinCount + nArrowLen;
+		int xEnd = lpPt2->x - 5;
+		x1 = lpPt1->x + 10 + pOwnerPin->nIndex * nMargin;
+		if (lpPt2->x - lpPt1->x > nMinX) {
+			pOwnerPin->ptConnectedLine[0].x = lpPt1->x;
+			pOwnerPin->ptConnectedLine[0].y = lpPt1->y;
+			pOwnerPin->ptConnectedLine[1].x = x1;
+			pOwnerPin->ptConnectedLine[1].y = lpPt1->y;
+			pOwnerPin->ptConnectedLine[2].x = x1;
+			pOwnerPin->ptConnectedLine[2].y = lpPt2->y;
+			pOwnerPin->ptConnectedLine[3].x = xEnd;
+			pOwnerPin->ptConnectedLine[3].y = lpPt2->y;
+			pOwnerPin->nLinePtCount = 4;
+		}
+		else if (lpRect1 != NULL && lpRect2 != NULL) {
+			if (lpRect2->top - lpRect1->bottom > 20 || lpRect1->top - lpRect2->bottom > 20) {
+				if (lpRect2->top - lpRect1->bottom > 20) {
+					y1 = lpRect1->bottom + 10 + pOwnerPin->nIndex * nMargin;
+					x2 = min(lpPt2->x - nArrowLen, x1) - (nPinCount - pOwnerPin->nIndex) * nMargin;
+				}
+				else {
+					y1 = lpRect1->top - 10 - pOwnerPin->nIndex * nMargin;
+					x2 = min(lpPt2->x - nArrowLen, x1) - (nPinCount - pOwnerPin->nIndex) * nMargin;
+				}
+				pOwnerPin->ptConnectedLine[0].x = lpPt1->x;
+				pOwnerPin->ptConnectedLine[0].y = lpPt1->y;
+				pOwnerPin->ptConnectedLine[1].x = x1;
+				pOwnerPin->ptConnectedLine[1].y = lpPt1->y;
+				pOwnerPin->ptConnectedLine[2].x = x1;
+				pOwnerPin->ptConnectedLine[2].y = y1;
+				pOwnerPin->ptConnectedLine[3].x = x2;
+				pOwnerPin->ptConnectedLine[3].y = y1;
+				pOwnerPin->ptConnectedLine[4].x = x2;
+				pOwnerPin->ptConnectedLine[4].y = lpPt2->y;
+				pOwnerPin->ptConnectedLine[5].x = xEnd;
+				pOwnerPin->ptConnectedLine[5].y = lpPt2->y;
+				pOwnerPin->nLinePtCount = 6;
+			}
+			else {
+				x2 = min(lpRect1->left, lpRect2->left) - 30;
+				y1 = max(lpRect1->bottom, lpRect2->bottom) + 30;
+				pOwnerPin->ptConnectedLine[0].x = lpPt1->x;
+				pOwnerPin->ptConnectedLine[0].y = lpPt1->y;
+				pOwnerPin->ptConnectedLine[1].x = x1;
+				pOwnerPin->ptConnectedLine[1].y = lpPt1->y;
+				pOwnerPin->ptConnectedLine[2].x = x1;
+				pOwnerPin->ptConnectedLine[2].y = y1;
+				pOwnerPin->ptConnectedLine[3].x = x2;
+				pOwnerPin->ptConnectedLine[3].y = y1;
+				pOwnerPin->ptConnectedLine[4].x = x2;
+				pOwnerPin->ptConnectedLine[4].y = lpPt2->y;
+				pOwnerPin->ptConnectedLine[5].x = xEnd;
+				pOwnerPin->ptConnectedLine[5].y = lpPt2->y;
+				pOwnerPin->nLinePtCount = 6;
+			}
+		}
+	}
+
+	if (pOwnerPin->nLinePtCount >= 2) {
+		for (int i = 0; i < pOwnerPin->nLinePtCount - 1; i++) {
+			pGraphics->DrawLine(pPen, pOwnerPin->ptConnectedLine[i].x - m_nOffsetX, pOwnerPin->ptConnectedLine[i].y - m_nOffsetY,
+				pOwnerPin->ptConnectedLine[i + 1].x - m_nOffsetX, pOwnerPin->ptConnectedLine[i + 1].y - m_nOffsetY);
+		}
+
+		DrawArrow(pGraphics, pBrush, pPen, pOwnerPin->ptConnectedLine[pOwnerPin->nLinePtCount-1].x - m_nOffsetX,
+			pOwnerPin->ptConnectedLine[pOwnerPin->nLinePtCount-1].y - m_nOffsetY, nArrowLen);
+	}
+}
+
+void CEqsGraphWnd::DrawArrow(Gdiplus::Graphics *pGraphics, Gdiplus::Brush* pBrush, Gdiplus::Pen *pPen,
+	int x, int y, int nArrowLen)
+{
+	Gdiplus::Point pt[4];
+	pt[0].X = x;
+	pt[0].Y = y;
+	pt[1].X = x - nArrowLen;
+	pt[1].Y = y - 3;
+	pt[2].X = pt[1].X;
+	pt[2].Y = y + 3;
+	pt[3].X = x;
+	pt[3].Y = y;
+	pGraphics->FillPolygon(pBrush, pt, 4);
+	pGraphics->DrawPolygon(pPen, pt, 4);
+}
+
+void CEqsGraphWnd::DrawPinWillConnectLine(COLORREF color, LPPOINT lpPt1, LPPOINT lpPt2)
+{
+	HDC hDC = GetDC(m_hWnd);
+
+	HPEN hPen = CreatePen(PS_SOLID, 2, color);
+	int oldRop = SetROP2(hDC, R2_NOTXORPEN);
+	HBRUSH hOldPen = (HBRUSH)::SelectObject(hDC, hPen);
+
+	if (lpPt1 != NULL && lpPt2 != NULL) {
+		::MoveToEx(hDC, lpPt1->x, lpPt1->y, NULL);
+		::LineTo(hDC, lpPt2->x, lpPt2->y);
+	}
+
+	::SetROP2(hDC, oldRop);
+	::SelectObject(hDC, hPen);
+	::DeleteObject(hOldPen);
+	::ReleaseDC(m_hWnd, hDC);
+}
+
+/*
+ * WindowProc,窗口过程
+ */
+LRESULT CALLBACK CEqsGraphWnd::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	CEqsGraphWnd* pEqsGraphWnd = (CEqsGraphWnd*)GetProp(hWnd, EQSGRAPHWND_TAG);
+	if (pEqsGraphWnd == NULL && uMsg != WM_NCCREATE)
+	{
+		return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
+	}
+
+
+	// 处理窗口消息
+	ASSERT(hWnd);
+	switch (uMsg)
+	{
+	case WM_NCCREATE:
+		return CEqsGraphWnd::OnNcCreate(hWnd, wParam, lParam);
+
+	case WM_DESTROY:
+		return pEqsGraphWnd->OnDestroy(wParam, lParam);
+
+	case WM_NCPAINT:
+		return pEqsGraphWnd->OnNcPaint(wParam, lParam);
+
+	case WM_PAINT:
+		return pEqsGraphWnd->OnPaint(wParam, lParam);
+
+	case WM_TIMER:
+		return pEqsGraphWnd->OnTimer(wParam, lParam);
+
+	case WM_MOUSEMOVE:
+		return pEqsGraphWnd->OnMouseMove(wParam, lParam);
+
+	case WM_LBUTTONDOWN:
+		return pEqsGraphWnd->OnLButtonDown(wParam, lParam);
+
+	case WM_RBUTTONDOWN:
+		return pEqsGraphWnd->OnRButtonDown(wParam, lParam);
+
+	case WM_LBUTTONDBLCLK:
+		return pEqsGraphWnd->OnLButtonDblclk(wParam, lParam);
+
+	case WM_MOUSEWHEEL:
+		return pEqsGraphWnd->OnMouseWheel(wParam, lParam);
+
+	case WM_MOUSEHWHEEL:
+		return pEqsGraphWnd->OnMouseHWheel(wParam, lParam);
+
+	case WM_KEYDOWN:
+		return pEqsGraphWnd->OnKeyDown(wParam, lParam);
+
+	case WM_SIZE:
+		return pEqsGraphWnd->OnSize(wParam, lParam);
+
+	case WM_VSCROLL:
+		return pEqsGraphWnd->OnVScroll(wParam, lParam);
+
+	case WM_HSCROLL:
+		return pEqsGraphWnd->OnHScroll(wParam, lParam);
+
+	case WM_NOTIFY:
+		return pEqsGraphWnd->OnNitify(wParam, lParam);
+
+	case WM_GETDLGCODE:
+		return DLGC_WANTALLKEYS;
+
+	default:
+		break;
+	}
+
+	return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
+}
+
+/*
+ * WM_NCCREATE
+ * 窗口创建
+ */
+LRESULT CEqsGraphWnd::OnNcCreate(HWND hWnd, WPARAM wParam, LPARAM lParam)
+{
+	CEqsGraphWnd* pEqsGraphWnd = (CEqsGraphWnd*)GetProp(hWnd,EQSGRAPHWND_TAG);
+	ASSERT(pEqsGraphWnd == NULL);
+
+	Hook(hWnd)->Init();
+	return ::DefWindowProc(hWnd, WM_NCCREATE, wParam, lParam);
+}
+
+/*
+ * WM_DESTROY
+ * 窗口销毁
+ */
+LRESULT CEqsGraphWnd::OnDestroy(WPARAM wParam, LPARAM lParam)
+{
+	Release();
+	return ::DefWindowProc(m_hWnd, WM_DESTROY, wParam, lParam);
+}
+
+
+/*
+ * WM_TIMER
+ */
+LRESULT CEqsGraphWnd::OnTimer(WPARAM wParam, LPARAM lParam)
+{
+	if (wParam == TIMER_FLASH) {
+		if (m_pFlashItem != NULL && m_nFlashCount > 0) {
+			m_nFlashCount--;
+			m_pFlashItem->nFlashFlag = (m_nFlashCount % 2);
+
+			RECT rcItem;
+			GetItemWarperRect(m_pFlashItem, &rcItem);
+			InvalidateRect(m_hWnd, &rcItem, TRUE);
+		}
+		else {
+			m_pFlashItem = NULL;
+			m_nFlashCount = 0;
+		}
+	}
+	else if (TIMER_ANIMATION_RECT == wParam) {
+		if (m_pAnimationItem != NULL) {
+			if (m_nAninationStep > 0) {
+				m_nAninationStep--;
+
+				m_rcAnimation.left += m_rcAninationStep.left;
+				m_rcAnimation.right += m_rcAninationStep.right;
+				m_rcAnimation.top += m_rcAninationStep.top;
+				m_rcAnimation.bottom += m_rcAninationStep.bottom;
+
+				RECT rcItem;
+				GetItemWarperRect(m_pAnimationItem, &rcItem);
+				InvalidateRect(m_hWnd, &rcItem, TRUE);
+			}
+			else {
+				KillTimer(m_hWnd, TIMER_ANIMATION_RECT);
+				RECT rcItem;
+				GetItemWarperRect(m_pAnimationItem, &rcItem);
+				InvalidateRect(m_hWnd, &rcItem, TRUE);
+				m_pAnimationItem = NULL;
+			}
+		}
+		else {
+			KillTimer(m_hWnd, TIMER_ANIMATION_RECT);
+			RECT rcClient;
+			GetClientRect(m_hWnd, &rcClient);
+			InvalidateRect(m_hWnd, &rcClient, TRUE);
+		}
+	}
+
+	return ::DefWindowProc(m_hWnd, WM_TIMER, wParam, lParam);
+}
+
+/*
+ * WM_MOUSEMOVE
+ * 鼠标滚动
+ */
+LRESULT CEqsGraphWnd::OnMouseMove(WPARAM wParam, LPARAM lParam)
+{
+	return ::DefWindowProc(m_hWnd, WM_MOUSEMOVE, wParam, lParam);
+}
+
+/*
+ * WM_LBUTTONDOWN
+ * 鼠标左键按下
+ */
+LRESULT CEqsGraphWnd::OnLButtonDown(WPARAM wParam, LPARAM lParam)
+{
+	POINT pt, ptNew;
+	pt.x = LOWORD(lParam);
+	pt.y = HIWORD(lParam);
+
+	RECT rcClient, rcItem, rcNewItem, rcLast;
+	GetClientRect(m_hWnd, &rcClient);
+	rcLast = {0, 0, 0, 0};
+	int nMaxOffsetX = m_nStageCx - (rcClient.right - rcClient.left);
+	int nMaxOffsetY = m_nStageCy - (rcClient.bottom - rcClient.top);
+	int nLastHozLine = 0;
+	int nLastVerLine = 0;
+
+
+	// 检测点击坐标是否在某一子项上,如是,则高亮显示
+	EQITEM* pLastItem = m_pCurItem;
+	PIN *pLastPin = m_pCurPin;
+	PIN *pLastSelLineOutPin = m_pSelLineOutPin;
+	BOOL bChanged = FALSE;
+	EQITEM* pHitItem = NULL;
+	PIN *pHitPin = NULL;
+	PIN *pPin2 = NULL;
+	int nRet = HighTest(pt, pHitItem, pHitPin);
+	if (pHitItem != m_pCurItem || nRet != HT_ITEM) {
+		if (m_pCurItem != NULL) {
+			m_pCurItem->bHighlight = FALSE;
+		}
+		m_pCurItem = NULL;
+	}
+
+	if (pHitPin != m_pCurPin || nRet != HT_PIN) {
+		if (m_pCurPin != NULL) {
+			m_pCurPin->bHighlight = FALSE;
+		}
+		m_pCurPin = NULL;
+	}
+
+	if (pHitPin != m_pSelLineOutPin || nRet != HT_LINE) {
+		m_pSelLineOutPin = NULL;
+	}
+
+	if (nRet == HT_ITEM) {
+		m_pCurItem = pHitItem;
+		m_pCurItem->bHighlight = TRUE;
+	}
+	else if (nRet == HT_PIN) {
+		m_pCurPin = pHitPin;
+		m_pCurPin->bHighlight = TRUE;
+	}
+	else if (nRet == HT_LINE) {
+		m_pSelLineOutPin = pHitPin;
+	}
+
+
+	bChanged = pLastItem != m_pCurItem || pLastPin != m_pCurPin || pLastSelLineOutPin != m_pSelLineOutPin;
+
+
+	// 刷新
+	SetFocus(m_hWnd);
+	if (bChanged) {
+		::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	}
+
+
+	// 捕捉鼠标消息,检测是否拖动
+	if (nRet == HT_ITEM && m_pCurItem != NULL) {
+		GetItemRect(m_pCurItem, &rcItem);
+
+		if (::GetCapture() == NULL) {
+			SetCapture(m_hWnd);
+			ASSERT(m_hWnd == GetCapture());
+			AfxLockTempMaps();
+			for (;;)
+			{
+				MSG msg;
+				VERIFY(::GetMessage(&msg, NULL, 0, 0));
+
+				if (GetCapture() != m_hWnd) break;
+
+				switch (msg.message)
+				{
+				case WM_MOUSEMOVE:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+					rcNewItem.left = rcItem.left + (ptNew.x - pt.x);
+					rcNewItem.right = rcItem.right + (ptNew.x - pt.x);
+					rcNewItem.top = rcItem.top + (ptNew.y - pt.y);
+					rcNewItem.bottom = rcItem.bottom + (ptNew.y - pt.y);
+					CalculateMagneticLine(m_pCurItem, &rcNewItem, m_nMagneticLinHoz, m_nMagneticLinVer);
+					DrawDropItemRectangle(&rcNewItem, &rcLast);
+					DrawMagneticLine(&rcClient, m_nMagneticLinHoz, nLastHozLine, m_nMagneticLinVer, nLastVerLine);
+					nLastHozLine = m_nMagneticLinHoz;
+					nLastVerLine = m_nMagneticLinVer;
+					CopyRect(&rcLast, &rcNewItem);
+					break;
+
+				case WM_LBUTTONUP:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+					m_pCurItem->rect.left = m_nMagneticLinVer > 0 ? m_nMagneticLinVer : (rcItem.left + (ptNew.x - pt.x) + m_nOffsetX);
+					m_pCurItem->rect.right = m_pCurItem->rect.left + (rcItem.right - rcItem.left);
+					m_pCurItem->rect.top = m_nMagneticLinHoz > 0 ? m_nMagneticLinHoz : (rcItem.top + (ptNew.y - pt.y) + m_nOffsetY);
+					m_pCurItem->rect.bottom = m_pCurItem->rect.top + (rcItem.bottom - rcItem.top);
+					if (m_pCurItem->rect.left != rcItem.left || m_pCurItem->rect.top != rcItem.top) {
+						if (m_listener.onEqItemPosChanged != nullptr) {
+							m_listener.onEqItemPosChanged(m_pCurItem, m_pCurItem->rect.left, m_pCurItem->rect.top);
+						}
+					}
+					DrawDropItemRectangle(NULL, &rcLast);
+					ReleaseCapture();
+
+					ClearConnectedLinePoint(m_pCurItem);
+					::InvalidateRect(m_hWnd, &rcClient, TRUE);
+					goto ExitLoop;
+
+				case WM_KEYDOWN:
+					if (msg.wParam != VK_ESCAPE)
+						break;
+
+				default:
+					DispatchMessage(&msg);
+					break;
+				}
+			}
+
+			ReleaseCapture();
+		ExitLoop:
+			m_nMagneticLinHoz = 0;
+			m_nMagneticLinVer = 0;
+			AfxUnlockTempMaps(FALSE);
+		}
+	}
+
+
+	// 捕捉鼠标消息,检测是否连接引脚
+	else if (nRet == HT_PIN && m_pCurPin != NULL) {
+		if (::GetCapture() == NULL) {
+			BOOL bLast = FALSE;
+			bool bCanConnect;
+			POINT ptPin, ptLast;
+			COLORREF lineColor;
+			GetPinPoint(m_pCurPin, &ptPin);
+			ptLast.x = ptPin.x;
+			ptLast.y = ptPin.y;
+
+			SetCapture(m_hWnd);
+			ASSERT(m_hWnd == GetCapture());
+			AfxLockTempMaps();
+			for (;;)
+			{
+				MSG msg;
+				VERIFY(::GetMessage(&msg, NULL, 0, 0));
+
+				if (GetCapture() != m_hWnd) break;
+
+				switch (msg.message)
+				{
+				case WM_MOUSEMOVE:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+
+					// 擦除上一次
+					if (bLast) {
+						DrawPinWillConnectLine(lineColor, &ptPin, &ptLast);
+					}
+
+					// 检测是否可以连接
+					bCanConnect = false;
+					nRet = HighTest(ptNew, pHitItem, pHitPin);
+					if (nRet == HT_PIN) {
+						if (m_listener.onCheckConnectPin != nullptr) {
+							bCanConnect = m_listener.onCheckConnectPin(m_pCurPin, pHitPin);
+						}
+					}
+					if (bCanConnect) {
+						lineColor = RGB(0, 255, 0);
+						DrawPinWillConnectLine(lineColor, &ptPin, &ptNew);
+					}
+					else {
+						lineColor = RGB(0, 0, 0);
+						DrawPinWillConnectLine(lineColor, &ptPin, &ptNew);
+					}
+
+					ptLast.x = ptNew.x;
+					ptLast.y = ptNew.y;
+					bLast = TRUE;
+					break;
+
+				case WM_LBUTTONUP:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+
+					// 擦除上一次
+					if (bLast) {
+						DrawPinWillConnectLine(lineColor, &ptPin, &ptLast);
+					}
+
+					// 检测是否可以连接
+					bCanConnect = false;
+					nRet = HighTest(ptNew, pHitItem, pHitPin);
+					if (nRet == HT_PIN) {
+						if (m_listener.onConnectPin != nullptr) {
+							bCanConnect = m_listener.onConnectPin(m_pCurPin, pHitPin);
+						}
+					}
+					if (bCanConnect) {
+						m_pCurPin->pConnectedPin = pHitPin;
+						pHitPin->pConnectedPin = m_pCurPin;
+					}
+					bLast = FALSE;
+
+					ReleaseCapture();
+					::InvalidateRect(m_hWnd, &rcClient, TRUE);
+					goto ExitLoop2;
+
+				case WM_KEYDOWN:
+					if (msg.wParam != VK_ESCAPE)
+						break;
+
+				default:
+					DispatchMessage(&msg);
+					break;
+				}
+			}
+
+			ReleaseCapture();
+		ExitLoop2:
+			AfxUnlockTempMaps(FALSE);
+		}
+	}
+
+	
+	// 检测鼠标消息,检测是否移动画布
+	else if (nRet == HT_NOWHERE) {
+		if (::GetCapture() == NULL) {
+			int nLastOffsetX = m_nOffsetX;
+			int nLastOffsetY = m_nOffsetY;
+
+			POINT ptStart;
+			ptStart.x = pt.x;
+			ptStart.y = pt.y;
+
+			SetCursor(LoadCursor(NULL, IDC_SIZEALL));
+			SetCapture(m_hWnd);
+			ASSERT(m_hWnd == GetCapture());
+			AfxLockTempMaps();
+			for (;;) {
+				MSG msg;
+				VERIFY(::GetMessage(&msg, NULL, 0, 0));
+
+				if (GetCapture() != m_hWnd) break;
+
+				switch (msg.message)
+				{
+				case WM_MOUSEMOVE:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+					m_nOffsetX = min(nMaxOffsetX, max(0, nLastOffsetX - (ptNew.x - ptStart.x)));
+					m_nOffsetY = min(nMaxOffsetY, max(0, nLastOffsetY - (ptNew.y - ptStart.y)));
+					CalculateScollbar();
+					CalculateMapPos();
+					::InvalidateRect(m_hWnd, &rcClient, TRUE);
+					break;
+
+				case WM_LBUTTONUP:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+
+					ReleaseCapture();
+					CalculateScollbar();
+					CalculateMapPos();
+					::InvalidateRect(m_hWnd, &rcClient, TRUE);
+					goto ExitLoop3;
+
+				case WM_KEYDOWN:
+					if (msg.wParam != VK_ESCAPE)
+						break;
+
+				default:
+					DispatchMessage(&msg);
+					break;
+				}
+			}
+
+			ReleaseCapture();
+		ExitLoop3:
+			AfxUnlockTempMaps(FALSE);
+		}
+	}
+
+
+	return ::DefWindowProc(m_hWnd, WM_LBUTTONDOWN, wParam, lParam);
+}
+
+/*
+ * WM_LBUTTONDBLCLK
+ * 鼠标左键双击
+ */
+LRESULT CEqsGraphWnd::OnLButtonDblclk(WPARAM wParam, LPARAM lParam)
+{
+	POINT pt;
+	pt.x = LOWORD(lParam);
+	pt.y = HIWORD(lParam);
+
+	RECT rcClient, rcLast;
+	GetClientRect(m_hWnd, &rcClient);
+	rcLast = { 0, 0, 0, 0 };
+
+	// 检测点击坐标是否在某一子项上,如是,则高亮显示
+	EQITEM* pLastItem = m_pCurItem;
+	BOOL bChanged = FALSE;
+	EQITEM* pHitItem = NULL;
+	PIN *pHitPin = NULL;
+	int nRet = HighTest(pt, pHitItem, pHitPin);
+	if ( nRet == HT_ITEM) {
+		m_pCurItem = pHitItem;
+		m_pCurItem->bHighlight = FALSE;
+		if (m_listener.onDblckEqItem != nullptr) {
+			m_listener.onDblckEqItem(pHitItem);
+		}
+	}
+
+
+	return ::DefWindowProc(m_hWnd, WM_LBUTTONDBLCLK, wParam, lParam);
+}
+
+/*
+ * WM_MOUSEWHEEL
+ * 鼠标滚动
+ */
+LRESULT CEqsGraphWnd::OnMouseWheel(WPARAM wParam, LPARAM lParam)
+{
+	short zDelta;
+	UINT nFlags;
+	CPoint pt;
+
+	nFlags = LOWORD(wParam);
+	zDelta = (short)HIWORD(wParam);
+	pt.x = (short)LOWORD(lParam);
+	pt.y = (short)HIWORD(lParam);
+
+
+	CRect rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	m_nOffsetY -= zDelta;
+	m_nOffsetY = max(0, min(m_nOffsetY, m_nStageCy - rcClient.Height()));
+	CalculateScollbar();
+	CalculateMapPos();
+
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	return ::DefWindowProc(m_hWnd, WM_MOUSEWHEEL, wParam, lParam);
+}
+
+/*
+* WM_MOUSEHWHEEL
+* 鼠标滚动
+*/
+LRESULT CEqsGraphWnd::OnMouseHWheel(WPARAM wParam, LPARAM lParam)
+{
+	short zDelta;
+	UINT nFlags;
+	CPoint pt;
+
+	nFlags = LOWORD(wParam);
+	zDelta = (short)HIWORD(wParam);
+	pt.x = (short)LOWORD(lParam);
+	pt.y = (short)HIWORD(lParam);
+
+
+	CRect rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	m_nOffsetX += zDelta;
+	m_nOffsetX = max(0, min(m_nOffsetX, m_nStageCx - rcClient.Width()));
+	CalculateScollbar();
+	CalculateMapPos();
+
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	return ::DefWindowProc(m_hWnd, WM_MOUSEHWHEEL, wParam, lParam);
+}
+
+/*
+ * WM_RBUTTONDOWN
+ * 鼠标左键按下
+ */
+LRESULT CEqsGraphWnd::OnRButtonDown(WPARAM wParam, LPARAM lParam)
+{
+	POINT pt, ptNew;
+	pt.x = LOWORD(lParam);
+	pt.y = HIWORD(lParam);
+
+	RECT rcClient, rcItem, rcLast;
+	GetClientRect(m_hWnd, &rcClient);
+	rcLast = { 0, 0, 0, 0 };
+
+	// 检测点击坐标是否在某一子项上,如是,则高亮显示
+	EQITEM* pLastItem = m_pCurItem;
+	PIN *pLastPin = m_pCurPin;
+	PIN *pLastSelLineOutPin = m_pSelLineOutPin;
+	BOOL bChanged = FALSE;
+	EQITEM* pHitItem = NULL;
+	PIN *pHitPin = NULL;
+	PIN *pPin2 = NULL;
+	int nRet = HighTest(pt, pHitItem, pHitPin);
+	if (pHitItem != m_pCurItem || nRet != HT_ITEM) {
+		if (m_pCurItem != NULL) {
+			m_pCurItem->bHighlight = FALSE;
+		}
+		m_pCurItem = NULL;
+	}
+
+	if (pHitPin != m_pCurPin || nRet != HT_PIN) {
+		if (m_pCurPin != NULL) {
+			m_pCurPin->bHighlight = FALSE;
+		}
+		m_pCurPin = NULL;
+	}
+
+	if (pHitPin != m_pSelLineOutPin || nRet != HT_LINE) {
+		m_pSelLineOutPin = NULL;
+	}
+
+	if (nRet == HT_ITEM) {
+		m_pCurItem = pHitItem;
+		m_pCurItem->bHighlight = TRUE;
+	}
+	else if (nRet == HT_PIN) {
+		m_pCurPin = pHitPin;
+		m_pCurPin->bHighlight = TRUE;
+	}
+	else if (nRet == HT_LINE) {
+		m_pSelLineOutPin = pHitPin;
+	}
+
+
+	bChanged = pLastItem != m_pCurItem || pLastPin != m_pCurPin || pLastSelLineOutPin != m_pSelLineOutPin;
+
+
+	// 刷新
+	SetFocus(m_hWnd);
+	if (bChanged) {
+		::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	}
+
+
+	// 捕捉鼠标消息,检测是否拖动
+	if (nRet == HT_ITEM && m_pCurItem != NULL) {
+		CopyRect(&rcItem, &m_pCurItem->rect);
+
+		if (::GetCapture() == NULL) {
+			SetCapture(m_hWnd);
+			ASSERT(m_hWnd == GetCapture());
+			AfxLockTempMaps();
+			for (;;)
+			{
+				MSG msg;
+				VERIFY(::GetMessage(&msg, NULL, 0, 0));
+
+				if (GetCapture() != m_hWnd) break;
+
+				switch (msg.message)
+				{
+				case WM_MOUSEMOVE:
+					break;
+
+				case WM_RBUTTONUP:
+					ptNew = msg.pt;
+					::ScreenToClient(m_hWnd, &ptNew);
+					nRet = HighTest(ptNew, pHitItem, pHitPin);
+					ReleaseCapture();
+					if (m_listener.onRclickEqItem != NULL) {
+						m_listener.onRclickEqItem(pHitItem);
+					}
+					::InvalidateRect(m_hWnd, &rcClient, TRUE);
+					goto ExitLoop;
+
+				case WM_KEYDOWN:
+					if (msg.wParam != VK_ESCAPE)
+						break;
+
+				default:
+					DispatchMessage(&msg);
+					break;
+				}
+			}
+
+			ReleaseCapture();
+		ExitLoop:
+			AfxUnlockTempMaps(FALSE);
+		}
+	}
+
+
+	return ::DefWindowProc(m_hWnd, WM_LBUTTONDOWN, wParam, lParam);
+}
+
+/*
+ * WM_KEYDOWN
+ * 键盘消息,按下按键
+ */
+LRESULT CEqsGraphWnd::OnKeyDown(WPARAM wParam, LPARAM lParam)
+{
+	BOOL bChanged = FALSE;
+	if (wParam == VK_DELETE) {
+		// 如果当前选择为线,则断开连接
+		if (m_pSelLineOutPin != NULL) {
+			if (m_listener.onDisconnectPin != nullptr) {
+				if (m_listener.onDisconnectPin(m_pSelLineOutPin)) {
+					m_pSelLineOutPin->pConnectedPin->pConnectedPin = NULL;
+					m_pSelLineOutPin->pConnectedPin = NULL;
+					m_pSelLineOutPin = NULL;
+					bChanged = TRUE;
+				}
+			}
+		}
+		else if (m_pCurItem != NULL) {
+			if (m_listener.onDeleteEqItem != NULL) {
+				if (m_listener.onDeleteEqItem(m_pCurItem)) {
+					bChanged = DeleteItem(m_pCurItem) >= 0;
+				}
+			}
+		}
+	}
+
+
+	if (bChanged) {
+		RECT rcClient;
+		GetClientRect(m_hWnd, &rcClient);
+		::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	}
+
+	return ::DefWindowProc(m_hWnd, WM_KEYDOWN, wParam, lParam);
+}
+
+/*
+ * WM_NCPAINT
+ */
+LRESULT CEqsGraphWnd::OnNcPaint(WPARAM wParam, LPARAM lParam)
+{
+	LRESULT lRet = ::DefWindowProc(m_hWnd, WM_NCPAINT, wParam, lParam);
+
+
+	long styleEx = GetWindowLong(m_hWnd, GWL_EXSTYLE);
+	if ((styleEx & WS_EX_CLIENTEDGE) == WS_EX_CLIENTEDGE) {
+
+		RECT rect, rcClient;
+		GetClientRect(m_hWnd, &rcClient);
+		::ClientToScreen(m_hWnd, (LPPOINT)&rcClient.left);
+		::ClientToScreen(m_hWnd, (LPPOINT)&rcClient.right);
+		GetWindowRect(m_hWnd, &rect);
+		rcClient.right = rect.right - 1;
+		rcClient.bottom = rect.bottom - 1;
+		::OffsetRect(&rcClient, -rect.left, -rect.top);
+
+		rect.right -= rect.left;
+		rect.bottom -= rect.top;
+		rect.left = 0;
+		rect.top = 0;
+
+		HRGN hRgnWnd = CreateRectRgnIndirect(&rect);
+		HRGN hRgnClient = CreateRectRgnIndirect(&rcClient);
+
+		HBRUSH hBrushBK, hBrushFrame;
+		HDC hDC = ::GetWindowDC(m_hWnd);
+		::SelectClipRgn(hDC, hRgnWnd);
+		::ExtSelectClipRgn(hDC, hRgnClient, RGN_DIFF);
+
+		hBrushBK = CreateSolidBrush(m_crBkgnd);
+		::FillRect(hDC, &rect, hBrushBK);
+		DeleteObject(hBrushBK);
+
+		hBrushFrame = CreateSolidBrush(m_crFrame);
+		::FrameRect(hDC, &rect, hBrushFrame);
+
+		::DeleteObject(hRgnWnd);
+		::DeleteObject(hRgnClient);
+		DeleteObject(hBrushFrame);
+		::ReleaseDC(m_hWnd, hDC);
+	}
+
+	return lRet;
+}
+
+/*
+ * WM_PAINT
+ */
+LRESULT CEqsGraphWnd::OnPaint(WPARAM wParam, LPARAM lParam)
+{
+	HDC hDC, hMemDC;
+	HBITMAP hBitmap;
+	RECT rcClient;
+	CString strText;
+	HBRUSH hBrushBK;
+
+
+	// BeginPaint
+	PAINTSTRUCT ps;
+	hDC = BeginPaint(m_hWnd, &ps);
+	GetClientRect(m_hWnd, &rcClient);
+
+	hMemDC = ::CreateCompatibleDC(hDC);
+	hBitmap = ::CreateCompatibleBitmap(hDC, rcClient.right - rcClient.left,
+		rcClient.bottom - rcClient.top);
+	::SelectObject(hMemDC, hBitmap);
+
+
+	// 背景颜色
+	hBrushBK = CreateSolidBrush(m_crBkgnd);
+	::FillRect(hMemDC, &rcClient, hBrushBK);
+	DeleteObject(hBrushBK);
+
+
+	// 标题
+	if (m_hFontTitle == nullptr) {
+		LOGFONT lf;
+		HFONT hFontDefault = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
+		::GetObject(hFontDefault, sizeof(LOGFONT), &lf);
+		lf.lfHeight -= 6;
+		lf.lfWeight = FW_SEMIBOLD;
+		m_hFontTitle = CreateFontIndirect(&lf);
+	}
+
+	{
+		char szTitle[256];
+		GetWindowText(m_hWnd, szTitle, 256);
+		RECT rcTitle;
+		rcTitle.left = rcClient.left + 5;
+		rcTitle.top = rcClient.top + 12;
+		rcTitle.bottom = rcClient.bottom - 5;
+		rcTitle.right = rcClient.right - 5;
+		::SelectObject(hMemDC, m_hFontTitle);
+		::DrawText(hMemDC, szTitle, (int)strlen(szTitle), &rcTitle, DT_LEFT | DT_TOP);
+	}
+
+
+	// 绘制子项
+	HBRUSH hbrItemBackground[2];
+	HBRUSH hbrItemFrame[2];
+	HBRUSH hbrPinBackground[3];
+	hbrItemBackground[0] = CreateSolidBrush(m_crItemBackground[0]);
+	hbrItemBackground[1] = CreateSolidBrush(m_crItemBackground[1]);
+	hbrItemFrame[0] = CreateSolidBrush(m_crItemFrame[0]);
+	hbrItemFrame[1] = CreateSolidBrush(m_crItemFrame[1]);
+	for (int i = 0; i < 3; i++) {
+		hbrPinBackground[i] = CreateSolidBrush(m_crPinBkgnd[i]);
+	}
+
+
+	// gdi+
+	Gdiplus::Graphics graphics(hMemDC);
+	Gdiplus::Pen pen1(Gdiplus::Color(255, 64, 64, 64), 2);
+	Gdiplus::Pen pen2(Gdiplus::Color(255, 255, 127, 39), 2);
+	Gdiplus::SolidBrush brush1(Gdiplus::Color(255, 64, 64, 64));
+	if (m_bUseGdiPlus) {
+		graphics.SetSmoothingMode(Gdiplus::SmoothingModeHighQuality);
+	}
+
+
+	SetBkMode(hMemDC, TRANSPARENT);
+	{
+		RECT rcItem;
+		int nPinState;
+		int nItemCount = (int)m_arItem.GetCount();
+		for (int i = 0; i < nItemCount; i++) {
+			EQITEM* pItem = (EQITEM*)m_arItem.GetAt(i);
+			if (pItem->nFlashFlag == 1) {
+				continue;
+			}
+			GetItemRect(pItem, &rcItem);
+
+
+			// 子项背景和边框
+			if (m_nItemRound == 0) {
+				::FillRect(hMemDC, &rcItem, pItem->bHighlight ? hbrItemBackground[1] : hbrItemBackground[0]);
+				::FrameRect(hMemDC, &rcItem, pItem->bHighlight ? hbrItemFrame[1] : hbrItemFrame[0]);
+			}
+			else {
+				HRGN hRgn = CreateRoundRectRgn(rcItem.left, rcItem.top, rcItem.right, rcItem.bottom, m_nItemRound, m_nItemRound);
+				::FillRgn(hMemDC, hRgn, pItem->bHighlight ? hbrItemBackground[1] : hbrItemBackground[0]);
+				::FrameRgn(hMemDC, hRgn, pItem->bHighlight ? hbrItemFrame[1] : hbrItemFrame[0], 1, 1);
+				::DeleteObject(hRgn);
+			}
+
+
+			// name和id
+			HFONT hFontOld = (HFONT)::SelectObject(hMemDC, m_hFontName);
+			::SetTextColor(hMemDC, pItem->bHighlight ? m_crItemNameText[1] : m_crItemNameText[0]);
+			::DrawText(hMemDC, pItem->text, (int)strlen(pItem->text), &rcItem, DT_CENTER | DT_VCENTER | DT_SINGLELINE | DT_END_ELLIPSIS);
+
+			if (pItem->nShowType != ITEM_SMALL) {
+				RECT rcId = rcItem;
+				rcId.left += 5;
+				rcId.bottom -= 5;
+				CString strId;
+				strId.Format(_T("ID:%d"), pItem->id);
+				::SelectObject(hMemDC, m_hFontId);
+				::SetTextColor(hMemDC, pItem->bHighlight ? m_crItemIdText[1] : m_crItemIdText[0]);
+				::DrawText(hMemDC, strId, (int)strId.GetLength(), &rcId, DT_LEFT | DT_BOTTOM | DT_SINGLELINE | DT_END_ELLIPSIS);
+			}
+
+
+			// 动画效果不绘pin
+			if (m_pAnimationItem == pItem) {
+				continue;
+			}
+
+
+			// 绘制pin
+			RECT rcPin, rcPin2, rcPinText;
+			CPtrArray *pPins;
+			rcPinText.left = rcItem.left + 8;
+			rcPinText.right = rcItem.right - 8;
+
+
+			// in pins
+			PIN *pPin = NULL;
+			pPins = (CPtrArray *)pItem->pInPins;
+			for (int j = 0; j < pPins->GetSize(); j++) {
+				if (GetInPinRect(pItem, j, &rcPin)) {
+					pPin = (PIN *)pPins->GetAt(j);
+					::FrameRect(hMemDC, &rcPin, pItem->bHighlight ? hbrItemFrame[1] : hbrItemFrame[0]);
+
+					rcPin2.left = rcPin.left + 1;
+					rcPin2.right = rcPin.right;
+					rcPin2.top = rcPin.top + 1;
+					rcPin2.bottom = rcPin.bottom - 1;
+					nPinState = GetPinState(pPin);
+					::FillRect(hMemDC, &rcPin2, nPinState == 0 ? (pItem->bHighlight ? hbrItemBackground[1] : hbrItemBackground[0]) : hbrPinBackground[nPinState]);
+
+					if (pItem->nShowType != ITEM_SMALL) {
+						rcPinText.top = rcPin.top - 12;
+						rcPinText.bottom = rcPin.bottom + 12;
+						::SetTextColor(hMemDC, pItem->bHighlight ? m_crItemIdText[1] : m_crItemIdText[0]);
+						::DrawText(hMemDC, pPin->text, (int)strlen(pPin->text), &rcPinText, DT_LEFT | DT_VCENTER | DT_SINGLELINE | DT_END_ELLIPSIS);
+					}
+				}
+			}
+
+
+			// out pins
+			pPins = (CPtrArray *)pItem->pOutPins;
+			for (int j = 0; j < pPins->GetSize(); j++) {
+				pPin = (PIN *)pPins->GetAt(j);
+				if (GetOutPinRect(pItem, j, &rcPin)) {
+					::FrameRect(hMemDC, &rcPin, pItem->bHighlight ? hbrItemFrame[1] : hbrItemFrame[0]);
+
+					rcPin2.left = rcPin.left;
+					rcPin2.right = rcPin.right - 1;
+					rcPin2.top = rcPin.top + 1;
+					rcPin2.bottom = rcPin.bottom - 1;
+					nPinState = GetPinState(pPin);
+					::FillRect(hMemDC, &rcPin2, nPinState == 0 ? (pItem->bHighlight ? hbrItemBackground[1] : hbrItemBackground[0]) : hbrPinBackground[nPinState]);
+
+					if (pItem->nShowType != ITEM_SMALL) {
+						rcPinText.top = rcPin.top - 12;
+						rcPinText.bottom = rcPin.bottom + 12;
+						::SetTextColor(hMemDC, pItem->bHighlight ? m_crItemIdText[1] : m_crItemIdText[0]);
+						::DrawText(hMemDC, pPin->text, (int)strlen(pPin->text), &rcPinText, DT_RIGHT | DT_VCENTER | DT_SINGLELINE | DT_END_ELLIPSIS);
+					}
+				}
+			}
+
+			::DeleteObject(hbrItemFrame);
+			::SelectObject(hMemDC, hFontOld);
+		}
+
+
+		// 绘制连接线,保存线条在最后绘制
+		for (int i = 0; i < nItemCount; i++) {
+			EQITEM *pItem = (EQITEM*)m_arItem.GetAt(i);
+			if (pItem->nFlashFlag == 1) {
+				continue;
+			}
+
+			PIN *pPin = NULL;
+			CPtrArray *pPins;
+
+			// out pins边线
+			RECT rcItem1, rcItem2;
+			pPins = (CPtrArray *)pItem->pOutPins;
+			for (int j = 0; j < pPins->GetSize(); j++) {
+				pPin = (PIN *)pPins->GetAt(j);
+				if (pPin->pConnectedPin != NULL) {
+					POINT pt1, pt2;
+					if (GetPinPoint(pPin, &pt1) && GetPinPoint(pPin->pConnectedPin, &pt2)) {
+						GetItemRect(pItem, &rcItem1);
+						GetItemRect(pPin->pConnectedPin->pItem, &rcItem2);
+						DrawPinConnectedLine(&graphics, &brush1, pPin == m_pSelLineOutPin ? &pen2 : &pen1,
+							&pt1, &pt2, &rcItem1, &rcItem2, pPin);
+					}
+				}
+			}
+		}
+
+
+		for (int i = 0; i < 3; i++) {
+			::DeleteObject(hbrPinBackground[i]);
+		}
+		::DeleteObject(hbrItemBackground[0]);
+		::DeleteObject(hbrItemBackground[1]);
+		::DeleteObject(hbrItemFrame[0]);
+		::DeleteObject(hbrItemFrame[1]);
+	}
+
+
+
+
+	// EndPaint
+	::BitBlt(hDC, 0, 0, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top,
+		hMemDC, 0, 0, SRCCOPY);
+	EndPaint(m_hWnd, &ps);
+	::DeleteObject(hBitmap);
+	::DeleteDC(hMemDC);
+
+
+	return 1;
+}
+
+/*
+ * WM_SIZE
+ */
+LRESULT CEqsGraphWnd::OnSize(WPARAM wParam, LPARAM lParam)
+{
+	LRESULT lRet = ::DefWindowProc(m_hWnd, WM_SIZE, wParam, lParam);
+
+	CalculateScollbar();
+
+	if (m_hWndMapPos != NULL) {
+		CalculateMapPos();
+
+		CRect rcItem, rcClient;
+		GetClientRect(m_hWnd, &rcClient);
+		GetWindowRect(m_hWndMapPos,& rcItem);
+
+		::MoveWindow(m_hWndMapPos, rcClient.right- rcItem.Width() - MAPPOSWND_PADDING_RIGHT,
+			MAPPOSWND_PADDING_RIGHT, rcItem.Width(), rcItem.Height(), TRUE);
+	}
+
+	return lRet;
+}
+
+/*
+ * WM_VSCROLL
+ */
+LRESULT CEqsGraphWnd::OnVScroll(WPARAM wParam, LPARAM lParam)
+{
+	int nSBCode = LOWORD(wParam);
+	int nPos = HIWORD(wParam);
+
+	SCROLLINFO info = { 0 };
+	info.cbSize = sizeof(SCROLLINFO);
+	info.fMask = SIF_ALL;
+	GetScrollInfo(m_hWnd, SB_VERT, &info);
+
+	int nMaxPos = info.nMax - info.nPage;
+	int inc = 10;
+
+	switch (nSBCode)
+	{
+	case SB_BOTTOM:
+		if (info.nPos < nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -1 * inc*(iMaxPos - info.nPos), NULL, NULL);
+			info.nPos = nMaxPos;
+		}
+		break;
+
+	case SB_TOP:
+		if (info.nPos > info.nMin) {
+			// ScrollWindow(m_hWnd, 0, inc*(info.nPos - info.nMin), NULL, NULL);
+			info.nPos = info.nMin;
+		}
+		break;
+
+	case SB_LINEUP:
+		if (info.nPos > info.nMin) {
+			//ScrollWindow(m_hWnd, 0, inc, NULL, NULL);
+			info.nPos -= 1;
+		}
+		break;
+
+	case SB_LINEDOWN:
+		if (info.nPos < nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -1 * inc, NULL, NULL);
+			info.nPos += 1;
+		}
+		break;
+
+	case SB_PAGEUP:
+		if (info.nPos - 100 >= info.nMin) {
+			//ScrollWindow(m_hWnd, 0, 100 * inc, NULL, NULL);
+			info.nPos -= 100;
+		}
+		else {
+			if (info.nPos <= 0) {
+				// ScrollWindow(m_hWnd, 0, 0, NULL, NULL);
+			}
+			else {
+				// ScrollWindow(m_hWnd, 0, info.nPos, NULL, NULL);
+			}
+			info.nPos = info.nMin;
+		}
+		break;
+
+	case SB_PAGEDOWN:
+		if (info.nPos + 100 <= nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -100*inc, NULL, NULL);
+			info.nPos += 100;
+		}
+		else {
+			// ScrollWindow(m_hWnd, 0, (info.nPos - iMaxPos) * inc, NULL, NULL);
+			info.nPos = nMaxPos;
+		}
+		break;
+
+	case SB_ENDSCROLL:
+		break;
+
+	case SB_THUMBPOSITION:
+		break;
+
+	case SB_THUMBTRACK:
+		// ScrollWindow(m_hWnd, 0, inc * (info.nPos - nPos), NULL, NULL);
+		info.nPos = nPos;
+		break;
+	default:
+		break;
+	}
+
+	m_nOffsetY = info.nPos;
+	SetScrollInfo(m_hWnd, SB_VERT, &info, TRUE);
+	CalculateMapPos();
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	LRESULT lRet = ::DefWindowProc(m_hWnd, WM_VSCROLL, wParam, lParam);
+	return lRet;
+}
+
+/*
+ * WM_HSCROLL
+ */
+LRESULT CEqsGraphWnd::OnHScroll(WPARAM wParam, LPARAM lParam)
+{
+	int nSBCode = LOWORD(wParam);
+	int nPos = HIWORD(wParam);
+
+	SCROLLINFO info = { 0 };
+	info.cbSize = sizeof(SCROLLINFO);
+	info.fMask = SIF_ALL;
+	GetScrollInfo(m_hWnd, SB_HORZ, &info);
+
+	int nMaxPos = info.nMax - info.nPage;
+	int inc = 10;
+
+	switch (nSBCode)
+	{
+	case SB_RIGHT:
+		if (info.nPos < nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -1 * inc*(iMaxPos - info.nPos), NULL, NULL);
+			info.nPos = nMaxPos;
+		}
+		break;
+
+	case SB_LEFT:
+		if (info.nPos > info.nMin) {
+			// ScrollWindow(m_hWnd, 0, inc*(info.nPos - info.nMin), NULL, NULL);
+			info.nPos = info.nMin;
+		}
+		break;
+
+	case SB_LINELEFT:
+		if (info.nPos > info.nMin) {
+			//ScrollWindow(m_hWnd, 0, inc, NULL, NULL);
+			info.nPos -= 1;
+		}
+		break;
+
+	case SB_LINERIGHT:
+		if (info.nPos < nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -1 * inc, NULL, NULL);
+			info.nPos += 1;
+		}
+		break;
+
+	case SB_PAGELEFT:
+		if (info.nPos - 100 >= info.nMin) {
+			//ScrollWindow(m_hWnd, 0, 100 * inc, NULL, NULL);
+			info.nPos -= 100;
+		}
+		else {
+			if (info.nPos <= 0) {
+				// ScrollWindow(m_hWnd, 0, 0, NULL, NULL);
+			}
+			else {
+				// ScrollWindow(m_hWnd, 0, info.nPos, NULL, NULL);
+			}
+			info.nPos = info.nMin;
+		}
+		break;
+
+	case SB_PAGERIGHT:
+		if (info.nPos + 100 <= nMaxPos) {
+			// ScrollWindow(m_hWnd, 0, -100*inc, NULL, NULL);
+			info.nPos += 100;
+		}
+		else {
+			// ScrollWindow(m_hWnd, 0, (info.nPos - iMaxPos) * inc, NULL, NULL);
+			info.nPos = nMaxPos;
+		}
+		break;
+
+	case SB_ENDSCROLL:
+		break;
+
+	case SB_THUMBPOSITION:
+		break;
+
+	case SB_THUMBTRACK:
+		// ScrollWindow(m_hWnd, 0, inc * (info.nPos - nPos), NULL, NULL);
+		info.nPos = nPos;
+		break;
+	default:
+		break;
+	}
+
+	m_nOffsetX = info.nPos;
+	SetScrollInfo(m_hWnd, SB_HORZ, &info, TRUE);
+	CalculateMapPos();
+
+	RECT rcClient;
+	GetClientRect(m_hWnd, &rcClient);
+	::InvalidateRect(m_hWnd, &rcClient, TRUE);
+
+	LRESULT lRet = ::DefWindowProc(m_hWnd, WM_HSCROLL, wParam, lParam);
+	return lRet;
+}
+
+/*
+ * WM_NOTIFY
+ */
+LRESULT CEqsGraphWnd::OnNitify(WPARAM wParam, LPARAM lParam)
+{
+	LRESULT lRet = ::DefWindowProc(m_hWnd, WM_NOTIFY, wParam, lParam);
+
+	NMHDR *pNmhdr = (NMHDR *)lParam;
+	if (pNmhdr->idFrom == MAPPOSWND_ID) {
+		MAPPOSWND_NMHDR *pNmhdr2 = (MAPPOSWND_NMHDR *)lParam;
+		m_nOffsetX = pNmhdr2->dwData;
+		m_nOffsetY = pNmhdr2->dwData1;
+		CalculateScollbar();
+		CalculateMapPos();
+
+		RECT rcClient;
+		GetClientRect(m_hWnd, &rcClient);
+		::InvalidateRect(m_hWnd, &rcClient, TRUE);
+	}
+
+	return lRet;
+}
+
+
+/*
+ * 设置背景颜色
+ * color -- 背景色
+ */
+void CEqsGraphWnd::SetBkgndColor(COLORREF color)
+{
+	m_crBkgnd = color;
+}
+
+/*
+ * 边框颜色
+ * color -- 边框色
+ */
+void CEqsGraphWnd::SetFrameColor(COLORREF color)
+{
+	m_crFrame = color;
+}
+
+void CEqsGraphWnd::FlashItem(EQITEM *pItem)
+{
+	if (m_pFlashItem != NULL) {
+		KillTimer(m_hWnd, TIMER_FLASH);
+	}
+
+	m_nFlashCount = 5;
+	m_pFlashItem = pItem;
+	SetTimer(m_hWnd, TIMER_FLASH, 100, NULL);
+}
+
+void CEqsGraphWnd::AnimationItem(EQITEM* pItem)
+{
+	if (m_pAnimationItem != NULL) {
+		KillTimer(m_hWnd, TIMER_ANIMATION_RECT);
+	}
+
+
+	m_pAnimationItem = NULL;
+	KillTimer(m_hWnd, TIMER_ANIMATION_RECT);
+
+	UINT uElpase = 50;
+	m_nAninationDuration = 200;
+	m_nAninationStep = m_nAninationDuration / uElpase;
+	m_pAnimationItem = pItem;
+	m_rcAnimation.left = pItem->rect.left + (pItem->rect.right - pItem->rect.left) / 2.0f;
+	m_rcAnimation.right = m_rcAnimation.left;
+	m_rcAnimation.top = pItem->rect.top + (pItem->rect.bottom - pItem->rect.top) / 2.0f;
+	m_rcAnimation.bottom = m_rcAnimation.top;
+	m_rcAninationStep.left = (pItem->rect.left - m_rcAnimation.left) / (float)m_nAninationStep;
+	m_rcAninationStep.right = (pItem->rect.right - m_rcAnimation.right) / (float)m_nAninationStep;
+	m_rcAninationStep.top = (pItem->rect.top - m_rcAnimation.top) / (float)m_nAninationStep;
+	m_rcAninationStep.bottom = (pItem->rect.bottom - m_rcAnimation.bottom) / (float)m_nAninationStep;
+	
+	SetTimer(m_hWnd, TIMER_ANIMATION_RECT, uElpase, NULL);
+}
+
+double CEqsGraphWnd::PointToSegDist(double x, double y, double x1, double y1, double x2, double y2)
+{
+	double cross = (x2 - x1) * (x - x1) + (y2 - y1) * (y - y1);
+	if (cross <= 0) return sqrt((x - x1) * (x - x1) + (y - y1) * (y - y1));
+
+	double d2 = (x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1);
+	if (cross >= d2) return sqrt((x - x2) * (x - x2) + (y - y2) * (y - y2));
+
+	double r = cross / d2;
+	double px = x1 + (x2 - x1) * r;
+	double py = y1 + (y2 - y1) * r;
+	return sqrt((x - px) * (x - px) + (py - y) * (py - y));
+}
+

--
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