axis.cpp

This is my assignment for my tutor s Class. and many problems exist,so you should comprhend it and i

// Axis.cpp: implementation of the CAxis class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "FilmDesign.h"
#include "Axis.h"

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

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CAxis::CAxis()
{    
	
	 this->m_Center.x=60;
	 this->m_Center.y=620;
	 this->m_Minx=200;
	 this->m_Miny=0;
	 this->m_Maxx=1000;
	 this->m_Maxy=100;
	 this->m_Intervalx=50.0f;
	 this->m_Intervaly=10.0f;
	 this->m_Color[0]=RGB(255,0,0);
	 this->m_Color[1]=RGB(255,0,0);
	 this->m_Lablex="X";
	 this->m_Labley="Y";
	 this->m_Width=3;
	 this->m_LineStyle=PS_SOLID;
	 this->m_Ratio[0]=2.0;
	 this->m_Ratio[1]=1.0;
	 
     	

}

CAxis::~CAxis()
{
     
	 
}

CAxis::CAxis(CPoint center, CPoint min,CPoint max,double interval[2],CString title,CString lable[2],int linestyle,int width,COLORREF color[2])
{
      this->m_Center=center;
	  this->m_Minx =min.x;
	  this->m_Miny=min.y;
	  this->m_Maxx=max.x;
	  this->m_Maxy=max.y;
	  this->m_Intervalx=interval[0];
	  this->m_Intervaly=interval[1];
	  this->m_Lablex=lable[0];
	  this->m_Labley=lable[1];
	  this->m_LineStyle=linestyle;
	  this->m_Color[0]=color[0];
	  this->m_Color[1]=color[1];
	  this->m_Width=width;
	  this->m_Ratio[0]=1.0f;
	  this->m_Ratio[1]=1.0f;


}



CAxis::CAxis(CAxis &axis)
{
	this->m_Center =axis.m_Center ;
	this->m_Color[0] =axis.m_Color[0] ;
	this->m_Color[1] =axis.m_Color[1] ;
	this->m_Intervalx=axis.m_Intervalx;
	this->m_Intervaly=axis.m_Intervaly;
	this->m_Lablex=axis.m_Lablex;
	this->m_Labley=axis.m_Labley;
	this->m_LineStyle =axis.m_LineStyle;
	this->m_Maxx =axis.m_Maxx ;
	this->m_Minx =axis.m_Minx ;
	this->m_Miny=axis.m_Miny;
	this->m_Maxy=axis.m_Maxy;
	this->m_Width=axis.m_Width;
	this->m_Ratio[0]=axis.m_Ratio[0] ;
	this->m_Ratio[1]=axis.m_Ratio[1] ;


}



void CAxis::Draw(CDC* pDC,CRect rectClient)
{
	//Set Ratio;
	
    //initialize Central point of axis

	//this->m_Center.x=long(rectClient.right*0.1);
	//this->m_Center.y=long(rectClient.bottom*0.90);
    CPen *pOldPen,penx(this->m_LineStyle,this->m_Width,m_Color[0]);
	CPen peny(this->m_LineStyle,this->m_Width,m_Color[1]);
	/**Draw X Coordinate**/
	pOldPen=pDC->SelectObject(&penx);
	pDC->MoveTo(this->m_Center);
	if(rectClient.right<m_Center.x) 
		rectClient.right =::GetSystemMetrics(SM_CXSCREEN) ; ;
	pDC->LineTo(rectClient.right,this->m_Center.y);

   //	m_Center.x=rectClient.right *0.2;
	//m_Center.y=rectClient.bottom*0.8;
     //Draw arrow for X coordinate
    CPoint m1,m2,m_3;
	m1.x=long(rectClient.right*0.96);
	m1.y=long(this->m_Center.y*1.01);
	m2.x=long(rectClient.right*0.96);
	m2.y=long(this->m_Center.y*0.99);
	m_3.x=rectClient.right;
	m_3.y=this->m_Center.y;
    this->DrawArrow(pDC,m_Color[0],m1,m2,m_3);
	this->DrawScalex(pDC,rectClient); //Draw x Scale	
    
	pDC->SelectObject(pOldPen);
	           /**End **/
    /**Draw Y Coordinate**/
	pOldPen=pDC->SelectObject(&peny);
	pDC->MoveTo(this->m_Center);
	pDC->LineTo(this->m_Center.x,rectClient.top);

	 //Draw arrow for Y coordinate
    m1.x=long(this->m_Center.x*1.06);
	m1.y=long(rectClient.bottom*0.08);
	m2.x=long(this->m_Center.x*0.94);
	m2.y=long(rectClient.bottom*0.08);
	m_3.x=this->m_Center.x;
	m_3.y=rectClient.top;
    this->DrawArrow(pDC,m_Color[1],m1,m2,m_3);
	this->DrawScaley(pDC,rectClient);
	pDC->SelectObject(pOldPen);
	           /**End**/

	/***Draw Grid for background***/
	this->DrawGrid(pDC,rectClient);
    
	/**Lable**/
	this->DrawLable(pDC,rectClient);
	pDC->SelectObject(pOldPen);
	

}

void CAxis::DrawArrow(CDC* pDC,COLORREF color,CPoint m1, CPoint m2, CPoint m_3)
{
	
	CPoint pPoint[]={m1,m2,m_3};
	pDC->Polyline(pPoint,3);
	CRgn Rgn;
	CPoint RgnPoint[]={m1,m2,m_3};
	
	CBrush Brush(color);

	
	Rgn.CreatePolygonRgn(RgnPoint,3,WINDING);
	pDC->FillRgn(&Rgn,&Brush);



}

void CAxis::DrawScalex(CDC *pDC,CRect rect)
{   

	
    /** X Scale***/
    m_Ratio[0]=(rect.right-rect.left)/(m_Maxx-m_Minx);
	

	long j=(long)(m_Center.x*0.8);  //j is used to control Device axis
    long ly=m_Center.y;//used to record y axis
	long lx=m_Center.x;
	CString str;
	for(double i=1.0*(m_Minx);i<=this->m_Maxx;i+=m_Intervalx,j+=(long)(m_Intervalx*m_Ratio[0]),lx+=(long)(m_Intervalx*m_Ratio[0]))
	{  //i is used to control user's axis
	    
		str.Format("%3.1f",i);    
		pDC->TextOut(j ,(long)(m_Center.y*1.02),str);
		pDC->MoveTo(lx,(long)(ly*1.01));
		pDC->LineTo(lx,ly);
		
		
	}


   

	
	
}

void CAxis::DrawScaley(CDC *pDC,CRect rect)
{   

	
	/**Y Scale**/
	m_Ratio[1]=(rect.bottom -rect.top )/(m_Maxy-m_Miny);//used to convert from device to user's axis
	
	long j=m_Center.y;  //j is used to control Device axis
    long ly=m_Center.y; //used to record y axis
	long lx=m_Center.x; //i is used to control user's axis
	CString str;
 	for(double i1=1.0*(m_Miny);i1<=this->m_Maxy;i1+=m_Intervaly,j-=(long)(m_Intervaly*m_Ratio[1]),ly-=(long)(m_Intervaly*m_Ratio[1]))
	{ 
	    
		lx=m_Center.x;
		str.Format("%3.1f",i1);    
		pDC->TextOut((long)(m_Center.x*0.6),j,str);
		pDC->MoveTo(long(lx*0.92),ly);
		pDC->LineTo(lx,ly);
		
		
	}
	
}

void CAxis::DrawLable(CDC* pDC,CRect rect)
{
	
	pDC->SetBkMode(TRANSPARENT);
	pDC->TextOut(m_Center.x+(long)(rect.right/2),(long)(m_Center.y*1.05),this->m_Lablex);//xlable
    
    //make font to show along vertical destination
	CFont m_font;
	LOGFONT lf;
	strcpy(lf.lfFaceName,"Arial");
	lf.lfWeight=FW_NORMAL;
	lf.lfHeight=20;
	lf.lfUnderline =false;
	lf.lfItalic=false;
	lf.lfStrikeOut=false;
	lf.lfEscapement=900;//angles
	m_font.CreateFontIndirect(&lf);
	CFont *pOldFont=pDC->SelectObject(&m_font);
    pDC->TextOut((long)(m_Center.x*0.30),(long)(m_Center.y*0.5),this->m_Labley);
    m_font.DeleteObject();
	pDC->SelectObject(pOldFont);


}


void CAxis::DrawGrid(CDC *pDC, CRect rect)
{   
	CPen *pOldPen ,pen(PS_DOT,1,RGB(0,0,20));
	pOldPen=pDC->SelectObject(&pen);

	for(int j=1;j*m_Intervalx<=m_Maxx-m_Minx;j++)
	{
		pDC->MoveTo(m_Center.x+long(j*m_Intervalx*m_Ratio[0]),m_Center.y);
    	pDC->LineTo(m_Center.x+long(j*m_Intervalx*m_Ratio[0]) ,m_Center.y-long((m_Maxy-m_Miny)*m_Ratio[1]));
	}
	for(int i=1;i*m_Intervaly<=m_Maxy-m_Miny;i++)
	{
		pDC->MoveTo(m_Center.x,long(m_Center.y-i*m_Intervaly*m_Ratio[1]));
    	pDC->LineTo(m_Center.x+long((m_Maxx-m_Minx)*m_Ratio[0]),long(m_Center.y-i*m_Intervaly*m_Ratio[1]));
	}
	pDC->SelectObject(pOldPen);


}