Circular Push Button

Download Source. 50KB.
// MyBtn.cpp : implementation file
//

#include "stdafx.h"
#include "MyBtn.h"

#include "MemDC.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyBtn

CMyBtn::CMyBtn()
{
}

CMyBtn::~CMyBtn()
{
}


BEGIN_MESSAGE_MAP(CMyBtn, CButton)
	//{{AFX_MSG_MAP(CMyBtn)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyBtn message handlers

void CMyBtn::SetRound(void)
{
	HRGN rgn;
	CRect wrect;
	GetClientRect(&wrect);
    SetWindowRgn( NULL, FALSE );
	rgn = CreateEllipticRgn( wrect.left, wrect.top,
								wrect.right, wrect.bottom );

	SetWindowRgn(rgn, TRUE);	
}

void CMyBtn::GradientFill (CDC* pDC, CRect* pRect)
{
    CBrush* pBrush[64];

    for (int i=0; i<64; i++) 
	{
		pBrush[i] = new CBrush (RGB (0, 0, 255 - (i * 4)));
    }

    int nWidth = pRect->Width ();
    int nHeight = pRect->Height ();
    CRect rect;

    for (i=0; iFillRect (&rect, pBrush[(i * 63) / nHeight]);
    }

    for (i=0; i<64; i++)
        delete pBrush[i];
}

void CMyBtn::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	CRect Rect = lpDrawItemStruct->rcItem;
	CDC *pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	CRgn rgn;
	CRect rect;

	rect = Rect;

	UINT state = lpDrawItemStruct->itemState;

	CMemDC	*pMemDC = new CMemDC( pDC, Rect);
	CBrush hbr;
	hbr.CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
	//pDC->FillRect( &Rect, &hbr);
	pMemDC->FillRect( &Rect, &hbr);
	hbr.DeleteObject();
	
	if( !(state & ODS_DISABLED) )
	{
		if (state & ODS_SELECTED)
		{
			CPen pen( PS_SOLID, 2, GetSysColor( COLOR_3DHILIGHT ) );
			CPen *pPen;
			CPoint start, end;

			start.x = rect.left;
			start.y = rect.bottom;		
			end.x = rect.right;
			end.y = rect.top;

			rect.left += 2;
			rect.top += 2;
			rect.right -= 2;
			rect.bottom -= 2;

			pPen = pMemDC->SelectObject( &pen );
			pMemDC->Arc( &rect, start, end );
			pMemDC->SelectObject( pPen );
			pen.DeleteObject();
		}
	}

	rgn.CreateEllipticRgn( rect.left, rect.top, 
							rect.right, rect.bottom );
	
	pMemDC->SelectClipRgn( &rgn );	
	GradientFill( pMemDC, &Rect );

	SetRound();

	CString title;
	GetWindowText( title );
	if( title.GetLength() != 0 )
	{
		DrawWhiteText( pMemDC, &Rect, title );
		title.ReleaseBuffer();
	}

	delete pMemDC;
}

void CMyBtn::DrawWhiteText(CDC* pDC, CRect* pRect, CString& text )
{
    CFont font;
    int nHeight = -16;

    font.CreateFont (nHeight, 0, 0, 0, FW_BOLD,
        TRUE, 0, 0, DEFAULT_CHARSET, OUT_CHARACTER_PRECIS,
        CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH |
        FF_DONTCARE, "Times New Roman");

    pDC->SetBkMode(TRANSPARENT);
    pDC->SetTextColor(RGB (255, 255, 255));

    CFont* pOldFont = pDC->SelectObject (&font);
    pDC->DrawText (text, -1, pRect, DT_SINGLELINE | DT_CENTER |
					    DT_VCENTER);

    pDC->SelectObject (pOldFont);
}



Comments

  • Your Feet Will like The nike jordan Sneakers and like the Encounter

    Posted by BotsictastHom on 04/22/2013 08:24pm

    Hello there! I know this is kinda off topic however I'd figured I'd ask. Would you be interested in trading links or maybe guest writing a blog post or vice-versa? My site covers a lot of the same subjects as yours and I think we could greatly benefit from each other. If you might be interested feel free to shoot me an email. I look forward to hearing from you! Fantastic blog by the way! [url=http://dipitale.angelfire.com/saiuroe/]cheap lebron 10[/url]|

    Reply
  • new code

    Posted by Legacy on 10/01/2003 12:00am

    Originally posted by: kunix

    I make new version code.

    If you need project file, e-mail to me..

    It is dialog-based project code.

    Reply
  • ?use in a dialog box

    Posted by Legacy on 09/11/2003 12:00am

    Originally posted by: Julia

    I am trying to use this button to a dialogbox of the application. However, the round shape does not appear. Is there any difference when using it under a formview and a dialogbox? Thank you for your help.

    Reply
  • How to make background transparent

    Posted by Legacy on 03/05/1999 12:00am

    Originally posted by: Gordon Lam

    Do you know how to make the background of the button become
    transparent?

    Reply
  • Circular Buttons

    Posted by Legacy on 09/27/1998 12:00am

    Originally posted by: Ahsan

    These buttons are very useful in improving interface.
    These are pretty smart buttons.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: November 20, 2014 @ 2:00 p.m. ET / 11:00 a.m. PT Are you wanting to target two or more platforms such as iOS, Android, and/or Windows? You are not alone. 90% of enterprises today are targeting two or more platforms. Attend this eSeminar to discover how mobile app developers can rely on one IDE to create applications across platforms and approaches (web, native, and/or hybrid), saving time, money, and effort and introducing apps to market faster. You'll learn the trade-offs for gaining long …

  • In support of their business continuity and disaster recovery plans, many midsized companies endeavor to avoid putting all their eggs in one basket. Understanding the critical role of last-mile connectivity and always available Internet access for their enterprises, savvy firms utilize redundant connections from multiple service providers. Despite the good intentions, their Internet connectivity risk may still be in a single basket. That is because internet service providers (ISPs) and competitive local …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds