// MyScroll02.cpp : implementation file
//

#include "stdafx.h"
//#include "tt.h"
#include "MyScroll02.h"

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

/////////////////////////////////////////////////////////////////////////////
// MyScroll02

CMyScroll02::CMyScroll02()
{

	
	////////初始化一些數(shù)據(jù),即默認(rèn)值
	m_BkColor=RGB(0,0,0);
	m_NLColor=RGB(222,222,222);

	m_NumNetLineX=25;
	m_NumNetLineY=20;
	m_isFirst=true;
	m_isInitial=false;
	m_isShowNetLine=true;

	m_isUpdateView = false;
	m_iUpdateFreq = 25;
	m_NumberX=501;
	m_NumberY_Hig=1000;			//Y軸的正數(shù)點(diǎn)數(shù)！
	m_NumberY_Low=1000;			//Y軸的負(fù)數(shù)點(diǎn)數(shù)
	m_NumberY = m_NumberY_Hig+m_NumberY_Low;
	m_SColor=RGB(255,0,0);
	for(int i=0;i<m_NumberX;i++)
	{
		m_pMapPoint[i].x=0;
		m_pMapPoint[i].y=0;
	}
	m_nBeginMapPoint=0;
}

CMyScroll02::~CMyScroll02()
{

	pDC=NULL;
	pDC_B = NULL;

}


BEGIN_MESSAGE_MAP(CMyScroll02, CStatic)
	//{{AFX_MSG_MAP(CMyScroll02)
	ON_WM_PAINT()
	ON_WM_TIMER()
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// MyScroll02 message handlers
void CMyScroll02::InitDrawBk()
{
	m_isInitial = true;
	PrepareDC();
	BeginDrawBk();
}
void CMyScroll02::PrepareDC()
{
	CRect rt;
	GetClientRect(&rt);

	pDC_B=GetDC();					//////最好記得在最后析構(gòu)函數(shù)中把它給釋放了

	pDC_B->SetMapMode(MM_ANISOTROPIC);
	pDC_B->SetWindowExt(1000,m_NumberY);//////設(shè)置邏輯坐標(biāo)系的X，Y軸的點(diǎn)數(shù)
	pDC_B->SetViewportExt(rt.right,rt.bottom);
	pDC_B->SetWindowOrg(0,-m_NumberY_Hig);////////把邏輯坐標(biāo)的原點(diǎn)設(shè)為左邊的中間點(diǎn)

	pDC=GetDC();					//////最好記得在最后析構(gòu)函數(shù)中把它給釋放了

	pDC->SetMapMode(MM_ANISOTROPIC);
	pDC->SetWindowExt(1000,m_NumberY);//////設(shè)置邏輯坐標(biāo)系的X，Y軸的點(diǎn)數(shù)
	pDC->SetViewportExt(rt.right,rt.bottom);
	pDC->SetWindowOrg(0,-m_NumberY_Hig);////////把邏輯坐標(biāo)的原點(diǎn)設(shè)為左邊的中間點(diǎn)
	
	
//	GetMonitorFrequency();
//	SetTimer(2,m_iUpdateFreq,0);
}
/////////////////////////////////////////////////////////////////////////////
//////設(shè)置CDC 設(shè)備的屬性
void CMyScroll02::OnPrepareDC(CDC *dc)
{
	CRect rt;
	GetClientRect(&rt);

	dc->SetMapMode(MM_ANISOTROPIC);
	dc->SetWindowExt(1000,m_NumberY);//////設(shè)置邏輯坐標(biāo)系的X，Y軸的點(diǎn)數(shù)
	dc->SetViewportExt(rt.right,rt.bottom);
	dc->SetWindowOrg(0,-m_NumberY_Hig);////////把邏輯坐標(biāo)的原點(diǎn)設(shè)為左邊的中間點(diǎn)
}
/////////////////////////////////////////////////////////////////////////////
//////畫背景的,單畫背景，而不畫曲線；而且直接在視圖當(dāng)中畫
void CMyScroll02::BeginDrawBk()
{
	if(m_isInitial)
	{
		CBrush   m_BkBrush(m_BkColor);/////畫背景用的BRUSH
		CRect rt;
		GetClientRect(&rt);
		CBrush *OldBrush=pDC_B->SelectObject(&m_BkBrush);
		pDC_B->Rectangle(CRect(0,-m_NumberY_Hig,1000,m_NumberY_Low));

		if(m_isShowNetLine)
			DrawBkLine();

		pDC_B->SelectObject(OldBrush);
	}
}

/////////////////////////////////////////////////////////////////////////////
////////畫背景網(wǎng)格線的，而不畫曲線；而且直接在視圖當(dāng)中畫
void CMyScroll02::DrawBkLine()
{
	CPen hp1(PS_SOLID,5,RGB(11,11,11));///////用于畫主線的
	CPen hp2(PS_SOLID,1,m_NLColor);///////// 用于畫其它網(wǎng)格線的

	CPen *OldPen=pDC_B->SelectObject(&hp1);
	pDC_B->MoveTo(0,0);
	pDC_B->LineTo(1000,0);

	pDC_B->SelectObject(&hp2);
	int GradX,GradY;
	GradX=1000/m_NumNetLineX;
	GradY=m_NumberY/m_NumNetLineY;
	////////////////////////////////////////////畫網(wǎng)格線
	for(int i=0;i<m_NumNetLineX;i++)
	{//////////////////畫豎線
 		pDC_B->MoveTo(i*GradX,-m_NumberY_Hig);
		pDC_B->LineTo(i*GradX,m_NumberY_Low);
	}
	//////////////////畫橫線
	for(int j=0;j<m_NumNetLineY;j++)
	{
		if((m_NumberY_Low-j*GradY)!=0)
		{
			pDC_B->MoveTo(0,m_NumberY_Low-j*GradY);
			pDC_B->LineTo(1000,m_NumberY_Low-j*GradY);
		}
	}
	pDC_B->SelectObject(OldPen);
}
////////////////////////////////////////////////////////////////////////////////////
//////////////設(shè)新加的點(diǎn)的Y軸的坐標(biāo)
void CMyScroll02::SetScrollPoint(int y)
{
	m_nBeginMapPoint++;	

	if(y>m_NumberY_Hig||y<-m_NumberY_Low)
	{
		m_pMapPoint[m_nBeginMapPoint%m_NumberX].y=m_pMapPoint[(m_nBeginMapPoint-1)%m_NumberX].y;
	}
	else
	{
		m_pMapPoint[m_nBeginMapPoint%m_NumberX].y=-1*y;
	}
	if(m_isFirst)
	{
			m_pMapPoint[m_nBeginMapPoint].x=m_nBeginMapPoint*1000/m_NumberX;
	
		if(m_nBeginMapPoint>=(m_NumberX))
			m_isFirst=false;
	}
	else
	{
			for(int j=0;j<m_NumberX;j++)
			{
				m_pMapPoint[(m_nBeginMapPoint+j+1)%m_NumberX].x=j*1000/m_NumberX;
			}
	}
//	DrawScroll();
}
////////////////////////////////////////////////////////////////////////////////////
//////////////畫曲線
void CMyScroll02::DrawScroll()
{
	int j;
	CDC dc;
	CBitmap bitmap;
	CPen *OldPen;//=pDC->SelectObject(&hp3);
	
	CBitmap* pOldBitmap; 
	CRect client; 
	CRect rect; 
	pDC->GetClipBox(client);//檢取無效區(qū) 
	GetClientRect(rect);//檢取整個(gè)客戶區(qū) 
	if(dc.CreateCompatibleDC(pDC))//創(chuàng)建一個(gè)與pDC兼容的內(nèi)存設(shè)備環(huán)境 
	{ 
		if(bitmap.CreateCompatibleBitmap(pDC,rect.Width(), rect.Height()))//創(chuàng)建一與pDC兼容的位圖，大小為整個(gè)客戶區(qū) 
		{ 
			OnPrepareDC(&dc);//使dc與pDC具有同樣的映射關(guān)系 
			pOldBitmap=dc.SelectObject(&bitmap);//將位圖選入內(nèi)存環(huán)境 
			dc.SelectClipRgn(NULL);//使dc的整個(gè)客戶區(qū)都成無效區(qū) 
			dc.IntersectClipRect(client);//再“與上”檢取的無效區(qū)，使 
			//內(nèi)存環(huán)境與pDC檢取的無效區(qū)相等 
		} 
	} 
	//將所有的畫圖對象在內(nèi)存裁減區(qū)內(nèi)重畫 
	CBrush brush; 
	if(!brush.CreateSolidBrush(m_BkColor)) 
		return ; 
	brush.UnrealizeObject(); 
	dc.FillRect(client,&brush);//將dc的作圖區(qū)刷新成背景色 
	if(m_isShowNetLine)
	{											//是否繪制網(wǎng)絡(luò)線
		CPen hp1(PS_SOLID,5,RGB(11,11,11));///////用于畫主線的
		CPen hp2(PS_SOLID,1,m_NLColor);///////// 用于畫其它網(wǎng)格線的
	
		CPen *OldPen=dc.SelectObject(&hp1);
		dc.MoveTo(0,0);
		dc.LineTo(1000,0);	

		dc.SelectObject(&hp2);
		int GradX,GradY;
		GradX=1000/m_NumNetLineX;
		GradY=m_NumberY/m_NumNetLineY;
		////////////////////////////////////////////畫網(wǎng)格線
		for(int i=0;i<m_NumNetLineX;i++)
		{//////////////////畫豎線
			dc.MoveTo(i*GradX,-m_NumberY_Hig);
			dc.LineTo(i*GradX,m_NumberY_Low);
		}
		//////////////////畫橫線
		for(j=0;j<m_NumNetLineY;j++)
		{
			if((m_NumberY_Low-j*GradY)!=0)
			{
				dc.MoveTo(0,(m_NumberY_Low-j*GradY));
				dc.LineTo(1000,(m_NumberY_Low-j*GradY));
			}
		}
	}
	// TODO: Add your message handler code here//以下代碼為畫曲線的
	//////////////////////////////先判斷是否是第一幀
	if(m_isFirst)
	{
		CPen hp3;
		hp3.CreatePen(PS_SOLID,2,m_SColor);
		OldPen=dc.SelectObject(&hp3);

		dc.MoveTo(0,0);
		for(j=0;j<=m_nBeginMapPoint;j++)
		{
			dc.LineTo(m_pMapPoint[j]);
		}
		dc.SelectObject(OldPen);
	}
	else
	{
		CPen hp3;
		hp3.CreatePen(PS_SOLID,2,m_SColor);
		OldPen=dc.SelectObject(&hp3);
		dc.MoveTo(m_pMapPoint[(m_nBeginMapPoint+1)%m_NumberX]);
		for(int i=1;i<=m_NumberX;i++)
		{
			dc.LineTo(m_pMapPoint[(m_nBeginMapPoint+i)%m_NumberX]);
		}
		dc.SelectObject(OldPen);
	}
	pDC->BitBlt(client.left,client.top,client.Width(),client.Height(), 
				&dc,client.left,client.top,SRCCOPY);//將內(nèi)存裁減區(qū)的位圖 
				//拷貝到窗口裁減區(qū) 
	dc.SelectObject(pOldBitmap); 
}
/////////////////////////////////////////////////////////////////////////////////////////
//////////////////以下函數(shù)用于顯示的設(shè)置
/////////////////////////////////////////////////////////////////
////////設(shè)置背景顏色的
void CMyScroll02::SetBkMapColor(COLORREF BkColor)
{
	m_BkColor=BkColor;
	BeginDrawBk();
}
//////////////////////////////////////////////////////////////////
//////////設(shè)置網(wǎng)格線數(shù)目
void CMyScroll02::SetNetLine(int x,int y)
{
	m_NumNetLineX=x;
	m_NumNetLineY=y;
	BeginDrawBk();
}
///////////////////////////////////////////////////////////////////
//////////設(shè)置各路曲線的顏色的
void CMyScroll02::SetScrollColor(COLORREF ScrollColor)
{
//	if(ScrollID<=8&&ScrollID>0)
		m_SColor=ScrollColor;
//	else
//		AfxMessageBox("The ScrollID error!!!!");
}
////////////////////////////////////////////////////////////////////
////////////設(shè)置網(wǎng)絡(luò)線的顏色
void CMyScroll02::SetNetLineColor(COLORREF LineColor)
{
	m_NLColor=LineColor;
	BeginDrawBk();
}
void CMyScroll02::SetNumberX(int x)
{
	m_NumberX=x;
}
//////////////////////////////////////////////////////////////////////
////////////設(shè)置是否顯示網(wǎng)絡(luò)線
void CMyScroll02::IsShowNetLine(BOOL isShowNetLine)
{
	m_isShowNetLine=isShowNetLine;
	BeginDrawBk();
}
//////////////////////////////////////////////////////////////////////
////////////設(shè)置是否允許刷新顯示
void CMyScroll02::SetUpdateFlag(BOOL BTemp)
{
	m_isUpdateView=BTemp;
	//BeginDrawBk();
	if(m_isUpdateView)
	{
		SetTimer(2,m_iUpdateFreq,0);
	}
	else
	{
		KillTimer(2);
	}
}
/////////////////////////////////////////////////////////////////////////////
//重設(shè)置Y軸的坐標(biāo)點(diǎn)數(shù)！
void CMyScroll02::SetNumberY(int Y_Hig,int Y_Low)
{
	m_NumberY_Hig = Y_Hig;
	m_NumberY_Low = Y_Low;
	m_NumberY = m_NumberY_Hig+m_NumberY_Low;
	BeginDrawBk();
}
/////////////////////////////////////////////////////////////////////////////
// CMyScroll02 message handlers

void CMyScroll02::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
//	DrawScroll();

	// Do not call CStatic::OnPaint() for painting messages
}

void CMyScroll02::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	
	if(nIDEvent==2) DrawScroll();

	CStatic::OnTimer(nIDEvent);
}



BOOL CMyScroll02::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	DrawScroll();
	return CStatic::OnEraseBkgnd(pDC);
}