//?Meter.cpp?:?implementation?file
//

#include?“stdafx.h“
#include?“MyMeter.h“
#include?“Meter.h“
#include?“math.h“
#include?“MemDC.h“

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

#define?PT_NUM?50
/////////////////////////////////////////////////////////////////////////////
//?CMeter

CMeter::CMeter（）
{
	m_nStartAngleDeg?=?225;
	m_nEndAngleDeg?=?315;
	m_nTicks?=?10;?//刻度
	m_nSubTicks?=?5;
	m_dMaxValue?=?100.0;?//最大值
	m_dMinValue?=?0.0;
	m_dCurrentValue?=?0.0;//當前值
	m_nScaleDecimals?=?0;
	m_nValueDecimals?=?1;?//小數位數
	m_colorNeedle?=?RGB（255?0?0）;?//指針顏色
	m_strUnits?=?_T（“bar“）;
	m_bColorTick?=?FALSE;
	
	//?顏色表格
	m_colorTable[0]?=?RGB（255?255???0）;
	m_colorTable[1]?=?RGB（??0?255???0）;
	m_colorTable[2]?=?RGB（255???0???0）;
	m_colorTable[3]?=?RGB（255183?34）;
	m_colorTable[4]?=?RGB（255?92?93）;
}

CMeter::~CMeter（）
{
}


BEGIN_MESSAGE_MAP（CMeter?CStatic）
	//{{AFX_MSG_MAP（CMeter）
	ON_WM_PAINT（）
	ON_WM_SIZE（）
	//}}AFX_MSG_MAP
END_MESSAGE_MAP（）

/////////////////////////////////////////////////////////////////////////////
//?CMeter?message?handlers

void?CMeter::OnPaint（）?
{
	CPaintDC?dc（this）;?//?device?context?for?painting

	//?獲得控件區域
	GetClientRect?（&m_rectCtrl）;

	CMyMemDC?memDC（&dc?&m_rectCtrl）;

	//?選取圓盤邊框半徑
	m_nRadiusframe?=?max（m_rectCtrl.Height（）?m_rectCtrl.Width（））*9/21;

	//?獲得儀表盤中心點
	m_ptMeterCenter?=?m_rectCtrl.CenterPoint（）;
	m_ptMeterCenter.y?+=?m_nRadiusframe/10;
	
	//繪制儀表盤
	if（m_dcBackground.GetSafeHdc（）==?NULL||?（m_bitmapBackground.m_hobject?==?NULL））
	{
		m_dcBackground.CreateCompatibleDC（&dc）;
		m_bitmapBackground.CreateCompatibleBitmap（&dc?m_rectCtrl.Width（）?																					m_rectCtrl.Height（））?;
		m_pBitmapOldBackground?=?m_dcBackground.Selectobject（&m_bitmapBackground）?;
		DrawMeterBackground（&m_dcBackground?m_rectCtrl）;

	}
	memDC.BitBlt（0?0?m_rectCtrl.Width（）?m_rectCtrl.Height（）?
			???????????&m_dcBackground?0?0?SRCCOPY）?;

	//?繪制指針
	DrawNeedle（&memDC）;

	DrawNode（&memDC）;

	DrawValue（&memDC）;
	//?Do?not?call?CStatic::OnPaint（）?for?painting?messages
}

void?CMeter::DrawMeterBackground（CDC?*pDC?CRect?&rect）
{
	int?nInnerRadius?=?m_nRadiusframe*8/10;	//?內圓弧半徑

	m_nCenterRadius?=?m_nRadiusframe/20;	//?中心園半徑大小

	int?nframe?=?m_nRadiusframe/18;			//?邊框厚度

	double?dstepTickDeg?=?（360.0+m_nStartAngleDeg-m_nEndAngleDeg）/（m_nTicks*m_nSubTicks）;	//?刻度步進角度

	int?nSubTickR?=?nInnerRadius+（m_nRadiusframe-2*nframe-nInnerRadius）/2;

	double?dDeg?=?（m_nStartAngleDeg+360.0-m_nEndAngleDeg）/（TABNUM*PT_NUM）;
	?

	CRect?rectPanelrectInnerPanel;
	CPen?penDraw?*pPenOld;
	CFont?*pFontOld;
	CBrush?brushFill?*pBrushOld;
	POINT?ptStart?ptEnd?ptInnerStart?ptInnerEnd;	
	CPoint?pointInner[BOUNDARY_POINTS]?ptGroup1[PT_NUM*TABNUM+1]?ptGroup2[PT_NUM*TABNUM+1];
	CPoint?ptRgn[PT_NUM*2+2];
	CPoint?pttemp;
	CString?strtemp;
	double?dRadPerDeg;
	double?dTick

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-01-04?16:16??MyMeter\
?????目錄???????????0??2013-01-04?16:16??MyMeter\Debug\
?????文件??????179712??2013-01-04?16:05??MyMeter\Debug\MyMeter.exe
?????文件?????1365036??2013-01-04?16:05??MyMeter\Debug\MyMeter.ilk
?????文件?????5139456??2013-01-04?16:05??MyMeter\Debug\MyMeter.pdb
?????目錄???????????0??2013-01-04?16:16??MyMeter\ipch\
?????目錄???????????0??2013-01-04?16:16??MyMeter\ipch\mymeter-8c2b1b3a\
?????目錄???????????0??2013-01-04?16:16??MyMeter\MyMeter\
?????文件????59265024??2013-01-04?16:06??MyMeter\MyMeter.sdf
?????文件?????????888??2013-01-04?14:18??MyMeter\MyMeter.sln
?????文件???????23552??2013-01-04?16:06??MyMeter\MyMeter.suo
?????目錄???????????0??2013-01-04?16:16??MyMeter\MyMeter\Debug\
?????文件????????3330??2013-01-04?16:05??MyMeter\MyMeter\Debug\cl.command.1.tlog
?????文件???????68660??2013-01-04?16:05??MyMeter\MyMeter\Debug\CL.read.1.tlog
?????文件????????3048??2013-01-04?16:05??MyMeter\MyMeter\Debug\CL.write.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link-cvtres.read.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link-cvtres.write.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.2588-cvtres.read.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.2588-cvtres.write.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.2588.read.1.tlog
?????文件???????????2??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.2588.write.1.tlog
?????文件????????2226??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.command.1.tlog
?????文件????????5476??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.read.1.tlog
?????文件????????1608??2013-01-04?16:05??MyMeter\MyMeter\Debug\link.write.1.tlog
?????文件???????76766??2013-01-04?16:05??MyMeter\MyMeter\Debug\Meter.obj
?????文件?????????762??2013-01-04?16:05??MyMeter\MyMeter\Debug\mt.command.1.tlog
?????文件?????????800??2013-01-04?16:05??MyMeter\MyMeter\Debug\mt.read.1.tlog
?????文件?????????562??2013-01-04?16:05??MyMeter\MyMeter\Debug\mt.write.1.tlog
?????文件?????????915??2013-01-04?14:48??MyMeter\MyMeter\Debug\MyMeter.exe.embed.manifest
?????文件?????????980??2013-01-04?14:48??MyMeter\MyMeter\Debug\MyMeter.exe.embed.manifest.res
?????文件?????????640??2013-01-04?16:05??MyMeter\MyMeter\Debug\MyMeter.exe.intermediate.manifest
............此處省略33個文件信息