//?RoundButton.cpp?:?implementation?file
//
//?Round?Buttons!
//
//?Written?by?Chris?Maunder?（Chris.Maunder@cbr.clw.csiro.au）
//?Copyright?（c）?19971998.
//?
//?Modified:?2?Feb?1998?-?Fix?vis?problem?CRgn?resource?leak
//????????????????????????button?reposition?code?redone.?CJM.
//
//?This?code?may?be?used?in?compiled?form?in?any?way?you?desire.?This
//?file?may?be?redistributed?unmodified?by?any?means?PROVIDING?it?is?
//?not?sold?for?profit?without?the?authors?written?consent?and?
//?providing?that?this?notice?and?the?authors?name?is?included.?If?
//?the?source?code?in?this?file?is?used?in?any?commercial?application?
//?then?a?simple?email?would?be?nice.
//
//?This?file?is?provided?“as?is“?with?no?expressed?or?implied?warranty.
//?The?author?accepts?no?liability?if?it?causes?any?damage?to?your
//?computer?causes?your?pet?cat?to?fall?ill?increases?baldness?or
//?makes?you?car?start?emitting?strange?noises?when?you?start?it?up.
//
//?Expect?bugs.
//?
//?Please?use?and?enjoy.?Please?let?me?know?of?any?bugs/mods/improvements?
//?that?you?have?found/implemented?and?I?will?fix/incorporate?them?into?this
//?file.?
//
/////////////////////////////////////////////////////////////////////////////

#include?“stdafx.h“
#include?
#include?“RoundButton.h“

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

/////////////////////////////////////////////////////////////////////////////
//?CRoundButton

CRoundButton::CRoundButton（）
{
	m_bDrawDashedFocusCircle?=?TRUE;
}

CRoundButton::~CRoundButton（）
{
	m_rgn.Deleteobject（）;
}

BEGIN_MESSAGE_MAP（CRoundButton?CButton）
	//{{AFX_MSG_MAP（CRoundButton）
	//}}AFX_MSG_MAP
END_MESSAGE_MAP（）

/////////////////////////////////////////////////////////////////////////////
//?CRoundButton?message?handlers

void?CRoundButton::PreSubclassWindow（）?
{
	CButton::PreSubclassWindow（）;

	Modifystyle（0?BS_OWNERDRAW）;

	CRect?rect;
	GetClientRect（rect）;

	//?Resize?the?window?to?make?it?square
	rect.bottom?=?rect.right?=?min（rect.bottomrect.right）;

	//?Get?the?vital?statistics?of?the?window
	m_ptCentre?=?rect.CenterPoint（）;
	m_nRadius??=?rect.bottom/2-1;

	//?Set?the?window?region?so?mouse?clicks?only?activate?the?round?section?
	//?of?the?button
	m_rgn.Deleteobject（）;?
	SetWindowRgn（NULL?FALSE）;
	m_rgn.CreateEllipticRgnIndirect（rect）;
	SetWindowRgn（m_rgn?TRUE）;

	//?Convert?client?coords?to?the?parents?client?coords
	ClientToScreen（rect）;
	CWnd*?pParent?=?GetParent（）;
	if?（pParent）?pParent->ScreenToClient（rect）;

	//?Resize?the?window
	MoveWindow（rect.left?rect.top?rect.Width（）?rect.Height（）?TRUE）;
}

void?CRoundButton::DrawItem（LPDRAWITEMSTRUCT?lpDrawItemStruct）?
{
	ASSERT（lpDrawItemStruct?!=?NULL）;
	
	CDC*?pDC???=?CDC::FromHandle（lpDrawItemStruct->hDC）;
	CRect?rect?=?lpDrawItemStruct->rcItem;
	UINT?state?=?lpDrawItemStruct->itemState;
	UINT?nstyle?=?Getstyle（）;
	int?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????9310??2009-12-13?21:35??RoundButtons\RoundButton.cpp

?????文件???????2620??2009-12-13?21:30??RoundButtons\RoundButton.h

?????目錄??????????0??2009-12-13?20:04??RoundButtons

-----------?---------??----------?-----??----

????????????????11930????????????????????3