dspview.cpp

数字信号处理实验程序。福利业快速变换

// DSPView.cpp : implementation of the CDSPView class
//

#include "stdafx.h"
#include "DSP.h"

#include "DSPDoc.h"
#include "DSPView.h"
#include "dlg01.h"
#include "dlg02.h"
#include "dlg03.h"
#include "dlg04.h"
#include "dlg05.h"
#include "dlg06.h"
#include "dlg07.h"
#include "dlg08.h"
#include "dlg09.h"
#include "MainFrm.h"

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

IMPLEMENT_DYNCREATE(CDSPView, CView)

BEGIN_MESSAGE_MAP(CDSPView, CView)
	//{{AFX_MSG_MAP(CDSPView)
	ON_COMMAND(IDM_ONE_ONE, OnOneOne)
	ON_WM_MOUSEMOVE()
	ON_COMMAND(IDM_ONE_TWO, OnOneTwo)
	ON_COMMAND(IDM_ONE_THREE, OnOneThree)
	ON_COMMAND(IDM_TWO_ONE, OnTwoOne)
	ON_COMMAND(IDM_TWO_TWO, OnTwoTwo)
	ON_COMMAND(IDM_TWO_THREE, OnTwoThree)
	ON_COMMAND(IDM_THREE_ONE, OnThreeOne)
	ON_COMMAND(IDM_THREE_TWO, OnThreeTwo)
	ON_COMMAND(IDM_THREE_THREE, OnThreeThree)
	ON_COMMAND(IDR_BACK, OnBack)
	ON_WM_LBUTTONDOWN()
	ON_WM_MOVE()
	ON_WM_LBUTTONUP()
	ON_WM_RBUTTONDOWN()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDSPView construction/destruction

CDSPView::CDSPView()
{
	// TODO: add construction code here
	drawdiscrete=FALSE;
	Xmax=1.0;
	Xmin=0.0;
}

CDSPView::~CDSPView()
{
}

BOOL CDSPView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDSPView drawing

void CDSPView::OnDraw(CDC* pDC)
{
	CDSPDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	SgnMaxNum=sgn.maxnum();
	SgnMinNum=sgn.minnum();
	RECT rect;
	GetWindowRect(&rect);
	WinXwidth=rect.right-rect.left;
	WinYwidth=rect.bottom-rect.top;
	PointXpixel=(WinXwidth-40.0)/sgn.length;
	if (SgnMaxNum==SgnMinNum)
	{
		if (SgnMaxNum==0)
		{
			PointYpixel=0;
		}
		else
		{
			SgnMinNum=SgnMaxNum-WinYwidth/2;
			PointYpixel=((WinYwidth-40.0)/(WinYwidth/1.0));
		}
	}
	else
	{
		PointYpixel=(WinYwidth-40.0)/(SgnMaxNum-SgnMinNum);
	}
	pDC->MoveTo(20,20);
	pDC->LineTo(20,WinYwidth-20);
	pDC->MoveTo(20,WinYwidth-20);
	pDC->LineTo(WinXwidth-20,WinYwidth-20);
	if (!drawdiscrete)
		DrawContinue(pDC);
	else DrawDiscrete(pDC);
}

void CDSPView::DrawContinue(CDC* pDC)
{
	pDC->MoveTo(20,WinYwidth-20);
	for(int i=0;i<sgn.length;i++)
	{
		pDC->LineTo((int)(PointXpixel*i)+20,WinYwidth-20-(int)((sgn.sgnt[i]-SgnMinNum)*PointYpixel));
		pDC->MoveTo((int)(PointXpixel*i)+20,WinYwidth-20-(int)((sgn.sgnt[i]-SgnMinNum)*PointYpixel));
	}
}

void CDSPView::DrawDiscrete(CDC* pDC)
{
	pDC->MoveTo(20,WinYwidth-20);
	for(int i=0;i<sgn.length;i++)
	{
		pDC->MoveTo((int)(PointXpixel*i)+20,WinYwidth-20);
		pDC->LineTo((int)(PointXpixel*i)+20,WinYwidth-20-(int)((sgn.sgnt[i]-SgnMinNum)*PointYpixel));
		pDC->Ellipse((int)(PointXpixel*i)+18,WinYwidth-22-(int)((sgn.sgnt[i]-SgnMinNum)*PointYpixel),(int)(PointXpixel*i)+22,WinYwidth-18-(int)((sgn.sgnt[i]-SgnMinNum)*PointYpixel));
	}
}

/////////////////////////////////////////////////////////////////////////////
// CDSPView printing

BOOL CDSPView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CDSPView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CDSPView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CDSPView diagnostics

#ifdef _DEBUG
void CDSPView::AssertValid() const
{
	CView::AssertValid();
}

void CDSPView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CDSPDoc* CDSPView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDSPDoc)));
	return (CDSPDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CDSPView message handlers

void CDSPView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CString str;
	double x=0.0;
	double y=0.0;
	double xtopi=0.0;
	x=(point.x-20)/PointXpixel*(Xmax-Xmin)/sgn.length+Xmin;
	xtopi=x/M_PI;
	if (SgnMaxNum==sgn.minnum())
	{
		y=SgnMaxNum;
	}	
	else 
	y=(WinYwidth-20-point.y)/PointYpixel+SgnMinNum;
	str.Format("x=%4f(%4fpi),y=%4f",x,xtopi,y);
	str=SgnTitle+str;
	((CMainFrame *)GetParent())->m_wndStatusBar.SetPaneText(0,str);
	CView::OnMouseMove(nFlags, point);
}

void CDSPView::OnOneOne() 
{
	// TODO: Add your command handler code here
	CDlg01 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=sgn.length;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnOneTwo() 
{
	// TODO: Add your command handler code here
	CDlg02 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=sgn.length;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnOneThree() 
{
	// TODO: Add your command handler code here
	CDlg03 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=sgn.length;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnTwoOne() 
{
	// TODO: Add your command handler code here
	CDlg04 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Invalidate();
	Xmax=2*M_PI;
	Xmin=0;
}

void CDSPView::OnTwoTwo() 
{
	// TODO: Add your command handler code here
	CDlg05 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=2*M_PI;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnTwoThree() 
{
	// TODO: Add your command handler code here
	CDlg06 dlg;
	dlg.DoModal();
	Invalidate();
}

void CDSPView::OnThreeOne() 
{
	// TODO: Add your command handler code here
	CDlg07 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=2*M_PI;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnThreeTwo() 
{
	// TODO: Add your command handler code here
	CDlg08 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=2*M_PI;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnThreeThree() 
{
	// TODO: Add your command handler code here
	CDlg09 dlg;
	dlg.DoModal();
	sgn=dlg.sgn;
	drawdiscrete=dlg.drawdiscrete;
	Xmax=2*M_PI;
	Xmin=0;
	Invalidate();
}

void CDSPView::OnBack() 
{
	// TODO: Add your command handler code here
	sgn=sgnback;
	Invalidate();
}

void CDSPView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_ptOrign=point;
	CView::OnLButtonDown(nFlags, point);
}


void CDSPView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	Dsignal sgntemp;
	sgnback=sgn;
	sgntemp=sgn;
	int left;
	int right;
	if (point.x<m_ptOrign.x)
	{
		left=point.x;
		right=m_ptOrign.x;
	}
	else 
	{
		right=point.x;
		left=m_ptOrign.x;
	}
	right=(int)floor(((right-20)/PointXpixel));
	left=(int)ceil(((left-20)/PointXpixel));
	
	
		sgntemp.Mid(left,right);
		sgn=sgntemp;
		Xmax=(Xmax-Xmin)/sgnback.length*right+Xmin;
		Xmin=(Xmax-Xmin)/sgnback.length*left+Xmin;
	    Invalidate();
	
	
	CView::OnRButtonDown(nFlags, point);
}