?? pie.cpp
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// Pie.cpp: implementation of the CPie class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "Gr.h"
#include "Pie.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CPie::CPie()
{
CutPie = FALSE;
WithText = FALSE;
}
CPie::~CPie()
{
}
void CPie::DrawPie(CDC* pDC,int LeftTopx,int LeftTopy,int RightBottomx,int RightBottomy)
{
int nWidth=30;
if(CutPie == FALSE)
{
DrawNormalPie(pDC,LeftTopx+25,LeftTopy+50,RightBottomx-nWidth-25,RightBottomy-50);
}
else
{
DrawCutPie(pDC,LeftTopx+25,LeftTopy+50,RightBottomx-nWidth-25,RightBottomy-50);
}
DrawLegend(pDC,RightBottomx-nWidth-5,LeftTopy+50,nWidth,CBaseGr::BOTTOM);
DrawTitle(pDC,LeftTopx+25,LeftTopy+50,RightBottomx-nWidth-25,RightBottomy-50,CBaseGr::TOP);
}
void CPie::DrawPieText(CDC* pDC,double sub,double sum,int Startx,int Starty,Align Mode,COLORREF FontColor)
{
CFont m_font;
m_font.CreateFont(
-12, // nHeight
0, // nWidth
0, // nEscapement
0, // nOrientation
FW_NORMAL, // nWeight
FALSE, // bItalic
FALSE, // bUnderline
FALSE, // cStrikeOut
OEM_CHARSET, // nCharSet
OUT_DEFAULT_PRECIS, // nOutPrecision
CLIP_DEFAULT_PRECIS, // nClipPrecision
DEFAULT_QUALITY, // nQuality
DEFAULT_PITCH | FF_DONTCARE, // nPitchAndFamily
_T("宋體"));
CFont *pOldFont = pDC->SelectObject(&m_font);
pDC->SetTextColor(FontColor);
// DrawText(pDC->GetSafeHdc(),Value,-1,&rcString,DT_RIGHT | DT_SINGLELINE);
CString Value = _T("");
if(sum!=0.0)
{
Value.Format(_T("%2d%%"),(int)(sub/sum*100+0.5));
}
switch(Mode)
{
case LEFT:
pDC->ExtTextOut(Startx+2,Starty,ETO_OPAQUE,NULL,Value,NULL);
break;
case RIGHT:
pDC->ExtTextOut(Startx-15,Starty,ETO_OPAQUE,NULL,Value,NULL);
break;
case TOP:
pDC->ExtTextOut(Startx-7,Starty-15,ETO_OPAQUE,NULL,Value,NULL);
break;
case BOTTOM:
pDC->ExtTextOut(Startx-7,Starty+15,ETO_OPAQUE,NULL,Value,NULL);
break;
}
pDC->SelectObject(pOldFont);
}
void CPie::DrawNormalPie(CDC* pDC,int LeftTopx,int LeftTopy,int RightBottomx,int RightBottomy)
{
int i=0;
double ValueSum=0.0;
double ValueSumb=0.0;
double AngleS=0.0;
double AngleE=0.0;
for(i=0;i<m_Legend.GetSize();i++)
{
ValueSum+=m_Legend.GetAt(i).Value;
}
if(ValueSum!=0.0)
{
for(i=0;i<m_Legend.GetSize();i++)
{
AngleS = 2*ValueSumb/ValueSum*PI;//360*ValueSumb/ValueSum*PI/180;
ValueSumb+=m_Legend.GetAt(i).Value;
AngleE =2*ValueSumb/ValueSum*PI;
int Startx;
int Starty;
if((RightBottomx-LeftTopx) > (RightBottomy-LeftTopy))
{
DrawArc(pDC,LeftTopx+(RightBottomx-LeftTopx)/2,LeftTopy+(RightBottomy-LeftTopy)/2,(RightBottomy-LeftTopy)/2,AngleS,AngleE,m_Legend.GetAt(i).Graph.LineSize,m_Legend.GetAt(i).Graph.LineColor,m_Legend.GetAt(i).Graph.FillColor);
Startx = (int)(LeftTopx+(RightBottomx-LeftTopx)/2+(RightBottomy-LeftTopy)/2*cos(AngleS+(AngleE-AngleS)/2));
Starty = (int)(LeftTopy+(RightBottomy-LeftTopy)/2+(RightBottomy-LeftTopy)/2*sin(AngleS+(AngleE-AngleS)/2));
}
else
{
DrawArc(pDC,LeftTopx+(RightBottomx-LeftTopx)/2,LeftTopy+(RightBottomy-LeftTopy)/2,(RightBottomx-LeftTopx)/2,AngleS,AngleE,m_Legend.GetAt(i).Graph.LineSize,m_Legend.GetAt(i).Graph.LineColor,m_Legend.GetAt(i).Graph.FillColor);
Startx = (int)(LeftTopx+(RightBottomx-LeftTopx)/2+(RightBottomx-LeftTopx)/2*cos(AngleS+(AngleE-AngleS)/2));
Starty = (int)(LeftTopy+(RightBottomy-LeftTopy)/2+(RightBottomx-LeftTopx)/2*sin(AngleS+(AngleE-AngleS)/2));
}
if(WithText)
{
if(((AngleE+AngleS)/2 < 90*PI/180 &&
(AngleE+AngleS)/2 >=0) ||
((AngleE+AngleS)/2 > 270*PI/180 &&
(AngleE+AngleS)/2 <=360*PI/180))
DrawPieText(pDC,m_Legend.GetAt(i).Value,ValueSum,Startx,Starty,LEFT);
else if((AngleE+AngleS)/2 > 90*PI/180 &&
(AngleE+AngleS)/2 < 270*PI/190)
DrawPieText(pDC,m_Legend.GetAt(i).Value,ValueSum,Startx,Starty,RIGHT);
else if((AngleS+AngleE)/2 == 90*PI/180)
DrawPieText(pDC,m_Legend.GetAt(i).Value,ValueSum,Startx,Starty,TOP);
else if((AngleS+AngleE)/2 == 270*PI/180)
DrawPieText(pDC,m_Legend.GetAt(i).Value,ValueSum,Startx,Starty,BOTTOM);
}
}
}
}
void CPie::DrawCutPie(CDC* pDC,int LeftTopx,int LeftTopy,int RightBottomx,int RightBottomy)
{
int i=0;
double ValueSum=0.0;
double ValueSumb=0.0;
double AngleS=0.0;
double AngleE=0.0;
for(i=0;i<m_Legend.GetSize();i++)
{
ValueSum+=m_Legend.GetAt(i).Value;
}
if(ValueSum!=0.0)
{
for(i=0;i<m_Legend.GetSize();i++)
{
AngleS = 2*ValueSumb/ValueSum*PI;//360*ValueSumb/ValueSum*PI/180;
ValueSumb+=m_Legend.GetAt(i).Value;
AngleE =2*ValueSumb/ValueSum*PI;
if((RightBottomx-LeftTopx) > (RightBottomy-LeftTopy))
{
DrawCutArc(pDC,LeftTopx+(RightBottomx-LeftTopx)/2,LeftTopy+(RightBottomy-LeftTopy)/2,(RightBottomy-LeftTopy)/2,AngleS,AngleE,m_Legend.GetAt(i).Graph.LineSize,m_Legend.GetAt(i).Graph.LineColor,m_Legend.GetAt(i).Graph.FillColor);
}
else
{
DrawCutArc(pDC,LeftTopx+(RightBottomx-LeftTopx)/2,LeftTopy+(RightBottomy-LeftTopy)/2,(RightBottomx-LeftTopx)/2,AngleS,AngleE,m_Legend.GetAt(i).Graph.LineSize,m_Legend.GetAt(i).Graph.LineColor,m_Legend.GetAt(i).Graph.FillColor);
}
}
}
}
void CPie::DrawCutArc(CDC* pDC,int pCoCx,int pCoCy,int nRadius,double AngleS,double AngleE,int LineSize,COLORREF LineColor,COLORREF FillColor)
{
int CutRadius = 5;
pCoCx -= CutRadius;
pCoCy -= CutRadius;
POINT PointS,PointE,PointBase;
PointBase.x = pCoCx - nRadius;
PointBase.y = pCoCy;
if(AngleS > AngleE)
{
double conv = AngleS;
AngleS = AngleE;
AngleE = conv;
}
int Detax = (int)(CutRadius*cos(AngleS+(AngleE-AngleS)/2));
int Detay = (int)(CutRadius*sin(AngleS+(AngleE-AngleS)/2));
PointS.x = pCoCx + (int)(nRadius*cos(AngleS)) + Detax;
PointS.y = pCoCy + (int)(nRadius*sin(AngleS)) + Detay;
PointE.x = pCoCx + (int)(nRadius*cos(AngleE)) + Detax;
PointE.y = pCoCy + (int)(nRadius*sin(AngleE)) + Detay;
double AngleTmp = AngleS;
double DetaAngle = PI/180;
int nCount = (int)((AngleE - AngleS)/DetaAngle);
CPoint *ArcP = new CPoint[nCount+2];
(*(ArcP+0)).x = pCoCx + Detax;
(*(ArcP+0)).y = pCoCy + Detay;
int i = 1;
while(AngleTmp <= AngleE)
{
(*(ArcP+i)).x = pCoCx + (int)(nRadius*cos(AngleTmp)) + Detax;
(*(ArcP+i)).y = pCoCy + (int)(nRadius*sin(AngleTmp)) + Detay;
AngleTmp += DetaAngle;
i++;
}
(*(ArcP+nCount)) = PointE;
(*(ArcP+nCount+1)) = (*(ArcP+0));
DrawPolygon(pDC,ArcP,nCount+2,LineSize,LineColor,FillColor);
delete []ArcP;
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